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authorSilenio Quarti2009-07-01 14:50:54 +0000
committerSilenio Quarti2009-07-01 14:50:54 +0000
commit093c579a4ffd9551acb901bba9617e7aa776989d (patch)
tree71cf23798b651ef92f188390841a8d130908fb11 /bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt
parentf664d297f7bb009784868bf3fcf0b3e3bb9a646b (diff)
downloadeclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.tar.gz
eclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.tar.xz
eclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.zip
restore HEAD after accidental deletion by error in automated build script
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt')
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/AnimatedProgress.java221
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentEvent.java86
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentListener.java40
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/Bullet.java156
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BusyIndicator.java82
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBanner.java558
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBannerLayout.java188
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java1793
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLabel.java826
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLayoutData.java45
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java4031
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Adapter.java83
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Listener.java112
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderAdapter.java24
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderEvent.java92
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java82
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderListener.java41
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabItem.java1053
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretEvent.java36
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretListener.java39
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ControlEditor.java255
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/DefaultContent.java881
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyEvent.java42
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyListener.java40
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundEvent.java54
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundListener.java39
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleEvent.java103
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleListener.java39
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementEvent.java74
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementListener.java67
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectEvent.java84
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectListener.java40
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PopupList.java274
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ST.java140
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashForm.java446
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormData.java33
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormLayout.java192
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledComposite.java700
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledCompositeLayout.java112
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StackLayout.java148
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyleRange.java213
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledText.java9475
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextContent.java207
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextDropTargetEffect.java242
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextEvent.java50
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextListener.java101
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextPrintOptions.java104
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextRenderer.java1568
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableCursor.java778
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableEditor.java260
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTree.java818
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeEditor.java259
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeItem.java876
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangeListener.java61
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangedEvent.java35
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangingEvent.java71
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TreeEditor.java319
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/VerifyKeyListener.java36
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewForm.java476
-rw-r--r--bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewFormLayout.java211
-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/package.html15
61 files changed, 29526 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/AnimatedProgress.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/AnimatedProgress.java
new file mode 100755
index 0000000000..41b34f7907
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/AnimatedProgress.java
@@ -0,0 +1,221 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.events.*;
+
+/**
+ * A control for showing progress feedback for a long running operation.
+ *
+ * @deprecated As of Eclipse 2.1, use ProgressBar with the style SWT.INDETERMINATE
+ *
+ * <dl>
+ * <dt><b>Styles:</b><dd>VERTICAL, HORIZONTAL, BORDER
+ * </dl>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class AnimatedProgress extends Canvas {
+
+ static final int SLEEP = 70;
+ static final int DEFAULT_WIDTH = 160;
+ static final int DEFAULT_HEIGHT = 18;
+ boolean active = false;
+ boolean showStripes = false;
+ int value;
+ int orientation = SWT.HORIZONTAL;
+ boolean showBorder = false;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#VERTICAL
+ * @see SWT#HORIZONTAL
+ * @see SWT#BORDER
+ * @see #getStyle()
+ */
+public AnimatedProgress(Composite parent, int style) {
+ super(parent, checkStyle(style));
+
+ if ((style & SWT.VERTICAL) != 0) {
+ orientation = SWT.VERTICAL;
+ }
+ showBorder = (style & SWT.BORDER) != 0;
+
+ addControlListener(new ControlAdapter() {
+ public void controlResized(ControlEvent e) {
+ redraw();
+ }
+ });
+ addPaintListener(new PaintListener() {
+ public void paintControl(PaintEvent e) {
+ paint(e);
+ }
+ });
+ addDisposeListener(new DisposeListener() {
+ public void widgetDisposed(DisposeEvent e){
+ stop();
+ }
+ });
+}
+private static int checkStyle (int style) {
+ int mask = SWT.NONE;
+ return style & mask;
+}
+/**
+ * Stop the animation if it is not already stopped and
+ * reset the presentation to a blank appearance.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public synchronized void clear(){
+ checkWidget();
+ if (active) stop();
+ showStripes = false;
+ redraw();
+}
+public Point computeSize(int wHint, int hHint, boolean changed) {
+ checkWidget();
+ Point size = null;
+ if (orientation == SWT.HORIZONTAL) {
+ size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
+ } else {
+ size = new Point(DEFAULT_HEIGHT, DEFAULT_WIDTH);
+ }
+ if (wHint != SWT.DEFAULT) size.x = wHint;
+ if (hHint != SWT.DEFAULT) size.y = hHint;
+
+ return size;
+}
+private void drawBevelRect(GC gc, int x, int y, int w, int h, Color topleft, Color bottomright) {
+ gc.setForeground(topleft);
+ gc.drawLine(x, y, x+w-1, y);
+ gc.drawLine(x, y, x, y+h-1);
+
+ gc.setForeground(bottomright);
+ gc.drawLine(x+w, y, x+w, y+h);
+ gc.drawLine(x, y+h, x+w, y+h);
+}
+void paint(PaintEvent event) {
+ GC gc = event.gc;
+ Display disp= getDisplay();
+
+ Rectangle rect= getClientArea();
+ gc.fillRectangle(rect);
+ if (showBorder) {
+ drawBevelRect(gc, rect.x, rect.y, rect.width-1, rect.height-1,
+ disp.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW),
+ disp.getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
+ }
+
+ paintStripes(gc);
+}
+void paintStripes(GC gc) {
+
+ if (!showStripes) return;
+
+ Rectangle rect= getClientArea();
+ // Subtracted border painted by paint.
+ rect = new Rectangle(rect.x+2, rect.y+2, rect.width-4, rect.height-4);
+
+ gc.setLineWidth(2);
+ gc.setClipping(rect);
+ Color color = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
+ gc.setBackground(color);
+ gc.fillRectangle(rect);
+ gc.setForeground(this.getBackground());
+ int step = 12;
+ int foregroundValue = value == 0 ? step - 2 : value - 2;
+ if (orientation == SWT.HORIZONTAL) {
+ int y = rect.y - 1;
+ int w = rect.width;
+ int h = rect.height + 2;
+ for (int i= 0; i < w; i+= step) {
+ int x = i + foregroundValue;
+ gc.drawLine(x, y, x, h);
+ }
+ } else {
+ int x = rect.x - 1;
+ int w = rect.width + 2;
+ int h = rect.height;
+
+ for (int i= 0; i < h; i+= step) {
+ int y = i + foregroundValue;
+ gc.drawLine(x, y, w, y);
+ }
+ }
+
+ if (active) {
+ value = (value + 2) % step;
+ }
+}
+/**
+* Start the animation.
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public synchronized void start() {
+ checkWidget();
+ if (active) return;
+
+ active = true;
+ showStripes = true;
+
+ final Display display = getDisplay();
+ final Runnable [] timer = new Runnable [1];
+ timer [0] = new Runnable () {
+ public void run () {
+ if (!active) return;
+ GC gc = new GC(AnimatedProgress.this);
+ paintStripes(gc);
+ gc.dispose();
+ display.timerExec (SLEEP, timer [0]);
+ }
+ };
+ display.timerExec (SLEEP, timer [0]);
+}
+/**
+* Stop the animation. Freeze the presentation at its current appearance.
+*/
+public synchronized void stop() {
+ //checkWidget();
+ active = false;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentEvent.java
new file mode 100644
index 0000000000..cafd31fcd6
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentEvent.java
@@ -0,0 +1,86 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent to BidiSegmentListeners when a line is to
+ * be measured or rendered in a bidi locale. The segments field is
+ * used to specify text ranges in the line that should be treated as
+ * separate segments for bidi reordering. Each segment will be reordered
+ * and rendered separately.
+ * <p>
+ * The elements in the segments field specify the start offset of
+ * a segment relative to the start of the line. They must follow
+ * the following rules:
+ * <ul>
+ * <li>first element must be 0
+ * <li>elements must be in ascending order and must not have duplicates
+ * <li>elements must not exceed the line length
+ * </ul>
+ * In addition, the last element may be set to the end of the line
+ * but this is not required.
+ *
+ * The segments field may be left null if the entire line should
+ * be reordered as is.
+ * </p>
+ * A BidiSegmentListener may be used when adjacent segments of
+ * right-to-left text should not be reordered relative to each other.
+ * For example, within a Java editor, you may wish multiple
+ * right-to-left string literals to be reordered differently than the
+ * bidi algorithm specifies.
+ *
+ * Example:
+ * <pre>
+ * stored line = "R1R2R3" + "R4R5R6"
+ * R1 to R6 are right-to-left characters. The quotation marks
+ * are part of the line text. The line is 13 characters long.
+ *
+ * segments = null:
+ * entire line will be reordered and thus the two R2L segments
+ * swapped (as per the bidi algorithm).
+ * visual line (rendered on screen) = "R6R5R4" + "R3R2R1"
+ *
+ * segments = [0, 5, 8]
+ * "R1R2R3" will be reordered, followed by [blank]+[blank] and
+ * "R4R5R6".
+ * visual line = "R3R2R1" + "R6R5R4"
+ * </pre>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class BidiSegmentEvent extends TypedEvent {
+
+ /**
+ * line start offset
+ */
+ public int lineOffset;
+
+ /**
+ * line text
+ */
+ public String lineText;
+
+ /**
+ * bidi segments, see above
+ */
+ public int[] segments;
+
+ static final long serialVersionUID = 3257846571587547957L;
+
+BidiSegmentEvent(StyledTextEvent e) {
+ super(e);
+ lineOffset = e.detail;
+ lineText = e.text;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentListener.java
new file mode 100644
index 0000000000..e1d9770623
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BidiSegmentListener.java
@@ -0,0 +1,40 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * This listener interface may be implemented in order to receive
+ * BidiSegmentEvents.
+ * @see BidiSegmentEvent
+ */
+public interface BidiSegmentListener extends SWTEventListener {
+
+/**
+ * This method is called when a line needs to be reordered for
+ * measuring or rendering in a bidi locale.
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.lineOffset line start offset (input)</li>
+ * <li>event.lineText line text (input)</li>
+ * <li>event.segments text segments that should be reordered
+ * separately. (output)</li>
+ * </ul>
+ *
+ * @param event the given event
+ * separately. (output)
+ * @see BidiSegmentEvent
+ */
+public void lineGetSegments(BidiSegmentEvent event);
+
+}
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/Bullet.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/Bullet.java
new file mode 100644
index 0000000000..69c4694d3f
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/Bullet.java
@@ -0,0 +1,156 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+
+/**
+ * Instances of this class represent bullets in the <code>StyledText</code>.
+ * <p>
+ * The hashCode() method in this class uses the values of the public
+ * fields to compute the hash value. When storing instances of the
+ * class in hashed collections, do not modify these fields after the
+ * object has been inserted.
+ * </p>
+ * <p>
+ * Application code does <em>not</em> need to explicitly release the
+ * resources managed by each instance when those instances are no longer
+ * required, and thus no <code>dispose()</code> method is provided.
+ * </p>
+ *
+ * @see StyledText#setLineBullet(int, int, Bullet)
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.2
+ */
+public class Bullet {
+ /**
+ * The bullet type. Possible values are:
+ * <ul>
+ * <li><code>ST.BULLET_DOT</code></li>
+ * <li><code>ST.BULLET_NUMBER</code></li>
+ * <li><code>ST.BULLET_LETTER_LOWER</code></li>
+ * <li><code>ST.BULLET_LETTER_UPPER</code></li>
+ * <li><code>ST.BULLET_TEXT</code></li>
+ * <li><code>ST.BULLET_CUSTOM</code></li>
+ * </ul>
+ */
+ public int type;
+
+ /**
+ * The bullet style.
+ */
+ public StyleRange style;
+
+ /**
+ * The bullet text.
+ */
+ public String text;
+
+ int[] linesIndices;
+ int count;
+
+/**
+ * Create a new bullet with the specified style, and type <code>ST.BULLET_DOT</code>.
+ * The style must have a glyph metrics set.
+ *
+ * @param style the style
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li>
+ * </ul>
+ */
+public Bullet(StyleRange style) {
+ this(ST.BULLET_DOT, style);
+}
+/**
+ * Create a new bullet the specified style and type.
+ * The style must have a glyph metrics set.
+ *
+ * @param type the bullet type
+ * @param style the style
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when the style or the glyph metrics are null</li>
+ * </ul>
+ */
+public Bullet(int type, StyleRange style) {
+ if (style == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (style.metrics == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ this.type = type;
+ this.style = style;
+}
+void addIndices (int startLine, int lineCount) {
+ if (linesIndices == null) {
+ linesIndices = new int[lineCount];
+ count = lineCount;
+ for (int i = 0; i < lineCount; i++) linesIndices[i] = startLine + i;
+ } else {
+ int modifyStart = 0;
+ while (modifyStart < count) {
+ if (startLine <= linesIndices[modifyStart]) break;
+ modifyStart++;
+ }
+ int modifyEnd = modifyStart;
+ while (modifyEnd < count) {
+ if (startLine + lineCount <= linesIndices[modifyEnd]) break;
+ modifyEnd++;
+ }
+ int newSize = modifyStart + lineCount + count - modifyEnd;
+ if (newSize > linesIndices.length) {
+ int[] newLinesIndices = new int[newSize];
+ System.arraycopy(linesIndices, 0, newLinesIndices, 0, count);
+ linesIndices = newLinesIndices;
+ }
+ System.arraycopy(linesIndices, modifyEnd, linesIndices, modifyStart + lineCount, count - modifyEnd);
+ for (int i = 0; i < lineCount; i++) linesIndices[modifyStart + i] = startLine + i;
+ count = newSize;
+ }
+}
+int indexOf (int lineIndex) {
+ for (int i = 0; i < count; i++) {
+ if (linesIndices[i] == lineIndex) return i;
+ }
+ return -1;
+}
+public int hashCode() {
+ return style.hashCode() ^ type;
+}
+int[] removeIndices (int startLine, int replaceLineCount, int newLineCount, boolean update) {
+ if (count == 0) return null;
+ if (startLine > linesIndices[count - 1]) return null;
+ int endLine = startLine + replaceLineCount;
+ int delta = newLineCount - replaceLineCount;
+ for (int i = 0; i < count; i++) {
+ int index = linesIndices[i];
+ if (startLine <= index) {
+ int j = i;
+ while (j < count) {
+ if (linesIndices[j] >= endLine) break;
+ j++;
+ }
+ if (update) {
+ for (int k = j; k < count; k++) linesIndices[k] += delta;
+ }
+ int[] redrawLines = new int[count - j];
+ System.arraycopy(linesIndices, j, redrawLines, 0, count - j);
+ System.arraycopy(linesIndices, j, linesIndices, i, count - j);
+ count -= (j - i);
+ return redrawLines;
+ }
+ }
+ for (int i = 0; i < count; i++) linesIndices[i] += delta;
+ return null;
+}
+int size() {
+ return count;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BusyIndicator.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BusyIndicator.java
new file mode 100755
index 0000000000..7f2f39deeb
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/BusyIndicator.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * Support for showing a Busy Cursor during a long running process.
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#busyindicator">BusyIndicator snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class BusyIndicator {
+
+ static int nextBusyId = 1;
+ static final String BUSYID_NAME = "SWT BusyIndicator"; //$NON-NLS-1$
+ static final String BUSY_CURSOR = "SWT BusyIndicator Cursor"; //$NON-NLS-1$
+
+/**
+ * Runs the given <code>Runnable</code> while providing
+ * busy feedback using this busy indicator.
+ *
+ * @param display the display on which the busy feedback should be
+ * displayed. If the display is null, the Display for the current
+ * thread will be used. If there is no Display for the current thread,
+ * the runnable code will be executed and no busy feedback will be displayed.
+ * @param runnable the runnable for which busy feedback is to be shown.
+ * Must not be null.
+ *
+* @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the runnable is null</li>
+ * </ul>
+ */
+
+public static void showWhile(Display display, Runnable runnable) {
+ if (runnable == null)
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (display == null) {
+ display = Display.getCurrent();
+ if (display == null) {
+ runnable.run();
+ return;
+ }
+ }
+
+ Integer busyId = new Integer(nextBusyId);
+ nextBusyId++;
+ Cursor cursor = display.getSystemCursor(SWT.CURSOR_WAIT);
+ Shell[] shells = display.getShells();
+ for (int i = 0; i < shells.length; i++) {
+ Integer id = (Integer)shells[i].getData(BUSYID_NAME);
+ if (id == null) {
+ shells[i].setCursor(cursor);
+ shells[i].setData(BUSYID_NAME, busyId);
+ }
+ }
+
+ try {
+ runnable.run();
+ } finally {
+ shells = display.getShells();
+ for (int i = 0; i < shells.length; i++) {
+ Integer id = (Integer)shells[i].getData(BUSYID_NAME);
+ if (id == busyId) {
+ shells[i].setCursor(null);
+ shells[i].setData(BUSYID_NAME, null);
+ }
+ }
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBanner.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBanner.java
new file mode 100644
index 0000000000..0a20c6b2ee
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBanner.java
@@ -0,0 +1,558 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.*;
+
+/**
+ * Instances of this class implement a Composite that lays out its
+ * children and allows programmatic control of the layout. It draws
+ * a separator between the left and right children which can be dragged
+ * to resize the right control.
+ * CBanner is used in the workbench to layout the toolbar area and
+ * perspective switching toolbar.
+ * <p>
+ * Note that although this class is a subclass of <code>Composite</code>,
+ * it does not make sense to set a layout on it.
+ * </p><p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>NONE</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(None)</dd>
+ * </dl>
+ * <p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.0
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+
+public class CBanner extends Composite {
+
+ Control left;
+ Control right;
+ Control bottom;
+
+ boolean simple = true;
+
+ int[] curve = new int[0];
+ int curveStart = 0;
+ Rectangle curveRect = new Rectangle(0, 0, 0, 0);
+ int curve_width = 5;
+ int curve_indent = -2;
+
+ int rightWidth = SWT.DEFAULT;
+ int rightMinWidth = 0;
+ int rightMinHeight = 0;
+ Cursor resizeCursor;
+ boolean dragging = false;
+ int rightDragDisplacement = 0;
+ Listener listener;
+
+ static final int OFFSCREEN = -200;
+ static final int BORDER_BOTTOM = 2;
+ static final int BORDER_TOP = 3;
+ static final int BORDER_STRIPE = 1;
+ static final int CURVE_TAIL = 200;
+ static final int BEZIER_RIGHT = 30;
+ static final int BEZIER_LEFT = 30;
+ static final int MIN_LEFT = 10;
+ static int BORDER1 = SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW;
+
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ */
+public CBanner(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ super.setLayout(new CBannerLayout());
+ resizeCursor = new Cursor(getDisplay(), SWT.CURSOR_SIZEWE);
+
+ listener = new Listener() {
+ public void handleEvent(Event e) {
+ switch (e.type) {
+ case SWT.Dispose:
+ onDispose(e); break;
+ case SWT.MouseDown:
+ onMouseDown (e.x, e.y); break;
+ case SWT.MouseExit:
+ onMouseExit(); break;
+ case SWT.MouseMove:
+ onMouseMove(e.x, e.y); break;
+ case SWT.MouseUp:
+ onMouseUp(); break;
+ case SWT.Paint:
+ onPaint(e.gc); break;
+ case SWT.Resize:
+ onResize(); break;
+ }
+ }
+ };
+ int[] events = new int[] {SWT.Dispose, SWT.MouseDown, SWT.MouseExit, SWT.MouseMove, SWT.MouseUp, SWT.Paint, SWT.Resize};
+ for (int i = 0; i < events.length; i++) {
+ addListener(events[i], listener);
+ }
+}
+static int[] bezier(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3, int count) {
+ // The parametric equations for a Bezier curve for x[t] and y[t] where 0 <= t <=1 are:
+ // x[t] = x0+3(x1-x0)t+3(x0+x2-2x1)t^2+(x3-x0+3x1-3x2)t^3
+ // y[t] = y0+3(y1-y0)t+3(y0+y2-2y1)t^2+(y3-y0+3y1-3y2)t^3
+ double a0 = x0;
+ double a1 = 3*(x1 - x0);
+ double a2 = 3*(x0 + x2 - 2*x1);
+ double a3 = x3 - x0 + 3*x1 - 3*x2;
+ double b0 = y0;
+ double b1 = 3*(y1 - y0);
+ double b2 = 3*(y0 + y2 - 2*y1);
+ double b3 = y3 - y0 + 3*y1 - 3*y2;
+
+ int[] polygon = new int[2*count + 2];
+ for (int i = 0; i <= count; i++) {
+ double t = (double)i / (double)count;
+ polygon[2*i] = (int)(a0 + a1*t + a2*t*t + a3*t*t*t);
+ polygon[2*i + 1] = (int)(b0 + b1*t + b2*t*t + b3*t*t*t);
+ }
+ return polygon;
+}
+static int checkStyle (int style) {
+ return SWT.NONE;
+}
+/*
+* This class was not intended to be subclassed but this restriction
+* cannot be enforced without breaking backward compatibility.
+*/
+//protected void checkSubclass () {
+// String name = getClass ().getName ();
+// int index = name.lastIndexOf ('.');
+// if (!name.substring (0, index + 1).equals ("org.eclipse.swt.custom.")) {
+// SWT.error (SWT.ERROR_INVALID_SUBCLASS);
+// }
+//}
+/**
+* Returns the Control that appears on the bottom side of the banner.
+*
+* @return the control that appears on the bottom side of the banner or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public Control getBottom() {
+ checkWidget();
+ return bottom;
+}
+public Rectangle getClientArea() {
+ return new Rectangle(0, 0, 0, 0);
+}
+
+/**
+* Returns the Control that appears on the left side of the banner.
+*
+* @return the control that appears on the left side of the banner or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public Control getLeft() {
+ checkWidget();
+ return left;
+}
+
+/**
+* Returns the Control that appears on the right side of the banner.
+*
+* @return the control that appears on the right side of the banner or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public Control getRight() {
+ checkWidget();
+ return right;
+}
+/**
+ * Returns the minimum size of the control that appears on the right of the banner.
+ *
+ * @return the minimum size of the control that appears on the right of the banner
+ *
+ * @since 3.1
+ */
+public Point getRightMinimumSize() {
+ checkWidget();
+ return new Point(rightMinWidth, rightMinHeight);
+}
+/**
+ * Returns the width of the control that appears on the right of the banner.
+ *
+ * @return the width of the control that appears on the right of the banner
+ *
+ * @since 3.0
+ */
+public int getRightWidth() {
+ checkWidget();
+ if (right == null) return 0;
+ if (rightWidth == SWT.DEFAULT) {
+ Point size = right.computeSize(SWT.DEFAULT, SWT.DEFAULT, false);
+ return size.x;
+ }
+ return rightWidth;
+}
+/**
+ * Returns <code>true</code> if the CBanner is rendered
+ * with a simple, traditional shape.
+ *
+ * @return <code>true</code> if the CBanner is rendered with a simple shape
+ *
+ * @since 3.0
+ */
+public boolean getSimple() {
+ checkWidget();
+ return simple;
+}
+void onDispose(Event event) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ if (resizeCursor != null) resizeCursor.dispose();
+ resizeCursor = null;
+ left = null;
+ right = null;
+ bottom = null;
+}
+void onMouseDown (int x, int y) {
+ if (curveRect.contains(x, y)) {
+ dragging = true;
+ rightDragDisplacement = curveStart - x + curve_width - curve_indent;
+ }
+}
+void onMouseExit() {
+ if (!dragging) setCursor(null);
+}
+void onMouseMove(int x, int y) {
+ if (dragging) {
+ Point size = getSize();
+ if (!(0 < x && x < size.x)) return;
+ rightWidth = Math.max(0, size.x - x - rightDragDisplacement);
+ if (rightMinWidth == SWT.DEFAULT) {
+ Point minSize = right.computeSize(rightMinWidth, rightMinHeight);
+ rightWidth = Math.max(minSize.x, rightWidth);
+ } else {
+ rightWidth = Math.max(rightMinWidth, rightWidth);
+ }
+ layout(false);
+ return;
+ }
+ if (curveRect.contains(x, y)) {
+ setCursor(resizeCursor);
+ } else {
+ setCursor(null);
+ }
+}
+void onMouseUp () {
+ dragging = false;
+}
+void onPaint(GC gc) {
+// Useful for debugging paint problems
+// {
+// Point size = getSize();
+// gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_GREEN));
+// gc.fillRectangle(-10, -10, size.x+20, size.y+20);
+// }
+ if (left == null && right == null) return;
+ Point size = getSize();
+ Color border1 = getDisplay().getSystemColor(BORDER1);
+ if (bottom != null) {
+ int y = bottom.getBounds().y - BORDER_STRIPE - 1;
+ gc.setForeground(border1);
+ gc.drawLine(0, y, size.x, y);
+ }
+ if (left == null || right == null) return;
+ int[] line1 = new int[curve.length+6];
+ int index = 0;
+ int x = curveStart;
+ line1[index++] = x + 1;
+ line1[index++] = size.y - BORDER_STRIPE;
+ for (int i = 0; i < curve.length/2; i++) {
+ line1[index++]=x+curve[2*i];
+ line1[index++]=curve[2*i+1];
+ }
+ line1[index++] = x + curve_width;
+ line1[index++] = 0;
+ line1[index++] = size.x;
+ line1[index++] = 0;
+
+ Color background = getBackground();
+
+ if (getDisplay().getDepth() >= 15) {
+ // Anti- aliasing
+ int[] line2 = new int[line1.length];
+ index = 0;
+ for (int i = 0; i < line1.length/2; i++) {
+ line2[index] = line1[index++] - 1;
+ line2[index] = line1[index++];
+ }
+ int[] line3 = new int[line1.length];
+ index = 0;
+ for (int i = 0; i < line1.length/2; i++) {
+ line3[index] = line1[index++] + 1;
+ line3[index] = line1[index++];
+ }
+ RGB from = border1.getRGB();
+ RGB to = background.getRGB();
+ int red = from.red + 3*(to.red - from.red)/4;
+ int green = from.green + 3*(to.green - from.green)/4;
+ int blue = from.blue + 3*(to.blue - from.blue)/4;
+ Color color = new Color(getDisplay(), red, green, blue);
+ gc.setForeground(color);
+ gc.drawPolyline(line2);
+ gc.drawPolyline(line3);
+ color.dispose();
+
+ // draw tail fading to background
+ int x1 = Math.max(0, curveStart - CURVE_TAIL);
+ gc.setForeground(background);
+ gc.setBackground(border1);
+ gc.fillGradientRectangle(x1, size.y - BORDER_STRIPE, curveStart-x1+1, 1, false);
+ } else {
+ // draw solid tail
+ int x1 = Math.max(0, curveStart - CURVE_TAIL);
+ gc.setForeground(border1);
+ gc.drawLine(x1, size.y - BORDER_STRIPE, curveStart+1, size.y - BORDER_STRIPE);
+ }
+
+ // draw border
+ gc.setForeground(border1);
+ gc.drawPolyline(line1);
+}
+
+void onResize() {
+ updateCurve(getSize().y);
+}
+/**
+* Set the control that appears on the bottom side of the banner.
+* The bottom control is optional. Setting the bottom control to null will remove it from
+* the banner - however, the creator of the control must dispose of the control.
+*
+* @param control the control to be displayed on the bottom or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the bottom control was not created as a child of the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public void setBottom(Control control) {
+ checkWidget();
+ if (control != null && control.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (bottom != null && !bottom.isDisposed()) {
+ Point size = bottom.getSize();
+ bottom.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ bottom = control;
+ layout(false);
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget();
+ return;
+}
+
+/**
+* Set the control that appears on the left side of the banner.
+* The left control is optional. Setting the left control to null will remove it from
+* the banner - however, the creator of the control must dispose of the control.
+*
+* @param control the control to be displayed on the left or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the left control was not created as a child of the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public void setLeft(Control control) {
+ checkWidget();
+ if (control != null && control.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (left != null && !left.isDisposed()) {
+ Point size = left.getSize();
+ left.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ left = control;
+ layout(false);
+}
+/**
+* Set the control that appears on the right side of the banner.
+* The right control is optional. Setting the right control to null will remove it from
+* the banner - however, the creator of the control must dispose of the control.
+*
+* @param control the control to be displayed on the right or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the right control was not created as a child of the receiver</li>
+* </ul>
+*
+* @since 3.0
+*/
+public void setRight(Control control) {
+ checkWidget();
+ if (control != null && control.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (right != null && !right.isDisposed()) {
+ Point size = right.getSize();
+ right.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ right = control;
+ layout(false);
+}
+/**
+ * Set the minimum height of the control that appears on the right side of the banner.
+ *
+ * @param size the minimum size of the control on the right
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the size is null or the values of size are less than SWT.DEFAULT</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public void setRightMinimumSize(Point size) {
+ checkWidget();
+ if (size == null || size.x < SWT.DEFAULT || size.y < SWT.DEFAULT) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ rightMinWidth = size.x;
+ rightMinHeight = size.y;
+ layout(false);
+}
+/**
+ * Set the width of the control that appears on the right side of the banner.
+ *
+ * @param width the width of the control on the right
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if width is less than SWT.DEFAULT</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setRightWidth(int width) {
+ checkWidget();
+ if (width < SWT.DEFAULT) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ rightWidth = width;
+ layout(false);
+}
+/**
+ * Sets the shape that the CBanner will use to render itself.
+ *
+ * @param simple <code>true</code> if the CBanner should render itself in a simple, traditional style
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setSimple(boolean simple) {
+ checkWidget();
+ if (this.simple != simple) {
+ this.simple = simple;
+ if (simple) {
+ curve_width = 5;
+ curve_indent = -2;
+ } else {
+ curve_width = 50;
+ curve_indent = 5;
+ }
+ updateCurve(getSize().y);
+ layout(false);
+ redraw();
+ }
+}
+void updateCurve(int height) {
+ int h = height - BORDER_STRIPE;
+ if (simple) {
+ curve = new int[] {0,h, 1,h, 2,h-1, 3,h-2,
+ 3,2, 4,1, 5,0,};
+ } else {
+ curve = bezier(0, h+1, BEZIER_LEFT, h+1,
+ curve_width-BEZIER_RIGHT, 0, curve_width, 0,
+ curve_width);
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBannerLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBannerLayout.java
new file mode 100644
index 0000000000..2b0b5f19af
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CBannerLayout.java
@@ -0,0 +1,188 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for CBanner
+ *
+ * @see CBanner
+ */
+class CBannerLayout extends Layout {
+
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ CBanner banner = (CBanner)composite;
+ Control left = banner.left;
+ Control right = banner.right;
+ Control bottom = banner.bottom;
+ boolean showCurve = left != null && right != null;
+ int height = hHint;
+ int width = wHint;
+
+ // Calculate component sizes
+ Point bottomSize = new Point(0, 0);
+ if (bottom != null) {
+ int trim = computeTrim(bottom);
+ int w = wHint == SWT.DEFAULT ? SWT.DEFAULT : Math.max(0, width - trim);
+ bottomSize = computeChildSize(bottom, w, SWT.DEFAULT, flushCache);
+ }
+ Point rightSize = new Point(0, 0);
+ if (right != null) {
+ int trim = computeTrim(right);
+ int w = SWT.DEFAULT;
+ if (banner.rightWidth != SWT.DEFAULT) {
+ w = banner.rightWidth - trim;
+ if (left != null) {
+ w = Math.min(w, width - banner.curve_width + 2* banner.curve_indent - CBanner.MIN_LEFT - trim);
+ }
+ w = Math.max(0, w);
+ }
+ rightSize = computeChildSize(right, w, SWT.DEFAULT, flushCache);
+ if (wHint != SWT.DEFAULT) {
+ width -= rightSize.x + banner.curve_width - 2* banner.curve_indent;
+ }
+ }
+ Point leftSize = new Point(0, 0);
+ if (left != null) {
+ int trim = computeTrim(left);
+ int w = wHint == SWT.DEFAULT ? SWT.DEFAULT : Math.max(0, width - trim);
+ leftSize = computeChildSize(left, w, SWT.DEFAULT, flushCache);
+ }
+
+ // Add up sizes
+ width = leftSize.x + rightSize.x;
+ height = bottomSize.y;
+ if (bottom != null && (left != null || right != null)) {
+ height += CBanner.BORDER_STRIPE + 2;
+ }
+ if (left != null) {
+ if (right == null) {
+ height += leftSize.y;
+ } else {
+ height += Math.max(leftSize.y, banner.rightMinHeight == SWT.DEFAULT ? rightSize.y : banner.rightMinHeight);
+ }
+ } else {
+ height += rightSize.y;
+ }
+ if (showCurve) {
+ width += banner.curve_width - 2*banner.curve_indent;
+ height += CBanner.BORDER_TOP + CBanner.BORDER_BOTTOM + 2*CBanner.BORDER_STRIPE;
+ }
+
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+
+ return new Point(width, height);
+}
+Point computeChildSize(Control control, int wHint, int hHint, boolean flushCache) {
+ Object data = control.getLayoutData();
+ if (data == null || !(data instanceof CLayoutData)) {
+ data = new CLayoutData();
+ control.setLayoutData(data);
+ }
+ return ((CLayoutData)data).computeSize(control, wHint, hHint, flushCache);
+}
+int computeTrim(Control c) {
+ if (c instanceof Scrollable) {
+ Rectangle rect = ((Scrollable) c).computeTrim (0, 0, 0, 0);
+ return rect.width;
+ }
+ return c.getBorderWidth () * 2;
+}
+protected boolean flushCache(Control control) {
+ Object data = control.getLayoutData();
+ if (data != null && data instanceof CLayoutData) ((CLayoutData)data).flushCache();
+ return true;
+}
+protected void layout(Composite composite, boolean flushCache) {
+ CBanner banner = (CBanner)composite;
+ Control left = banner.left;
+ Control right = banner.right;
+ Control bottom = banner.bottom;
+
+ Point size = banner.getSize();
+ boolean showCurve = left != null && right != null;
+ int width = size.x - 2*banner.getBorderWidth();
+ int height = size.y - 2*banner.getBorderWidth();
+
+ Point bottomSize = new Point(0, 0);
+ if (bottom != null) {
+ int trim = computeTrim(bottom);
+ int w = Math.max(0, width - trim);
+ bottomSize = computeChildSize(bottom, w, SWT.DEFAULT, flushCache);
+ height -= bottomSize.y + CBanner.BORDER_STRIPE + 2;
+ }
+ if (showCurve) height -= CBanner.BORDER_TOP + CBanner.BORDER_BOTTOM + 2*CBanner.BORDER_STRIPE;
+ height = Math.max(0, height);
+ Point rightSize = new Point(0,0);
+ if (right != null) {
+ int trim = computeTrim(right);
+ int w = SWT.DEFAULT;
+ if (banner.rightWidth != SWT.DEFAULT) {
+ w = banner.rightWidth - trim;
+ if (left != null) {
+ w = Math.min(w, width - banner.curve_width + 2* banner.curve_indent - CBanner.MIN_LEFT - trim);
+ }
+ w = Math.max(0, w);
+ }
+ rightSize = computeChildSize(right, w, SWT.DEFAULT, flushCache);
+ width = width - (rightSize.x - banner.curve_indent + banner.curve_width - banner.curve_indent);
+ }
+ Point leftSize = new Point(0, 0);
+ if (left != null) {
+ int trim = computeTrim(left);
+ int w = Math.max(0, width - trim);
+ leftSize = computeChildSize(left, w, SWT.DEFAULT, flushCache);
+ }
+
+ int x = 0;
+ int y = 0;
+ int oldStart = banner.curveStart;
+ Rectangle leftRect = null;
+ Rectangle rightRect = null;
+ Rectangle bottomRect = null;
+ if (bottom != null) {
+ bottomRect = new Rectangle(x, y+size.y-bottomSize.y, bottomSize.x, bottomSize.y);
+ }
+ if (showCurve) y += CBanner.BORDER_TOP + CBanner.BORDER_STRIPE;
+ if(left != null) {
+ leftRect = new Rectangle(x, y, leftSize.x, leftSize.y);
+ banner.curveStart = x + leftSize.x - banner.curve_indent;
+ x += leftSize.x - banner.curve_indent + banner.curve_width - banner.curve_indent;
+ }
+ if (right != null) {
+ if (left != null) {
+ rightSize.y = Math.max(leftSize.y, banner.rightMinHeight == SWT.DEFAULT ? rightSize.y : banner.rightMinHeight);
+ }
+ rightRect = new Rectangle(x, y, rightSize.x, rightSize.y);
+ }
+ if (banner.curveStart < oldStart) {
+ banner.redraw(banner.curveStart - CBanner.CURVE_TAIL, 0, oldStart + banner.curve_width - banner.curveStart + CBanner.CURVE_TAIL + 5, size.y, false);
+ }
+ if (banner.curveStart > oldStart) {
+ banner.redraw(oldStart - CBanner.CURVE_TAIL, 0, banner.curveStart + banner.curve_width - oldStart + CBanner.CURVE_TAIL + 5, size.y, false);
+ }
+ /*
+ * The paint events must be flushed in order to make the curve draw smoothly
+ * while the user drags the divider.
+ * On Windows, it is necessary to flush the paints before the children are
+ * resized because otherwise the children (particularly toolbars) will flash.
+ */
+ banner.update();
+ banner.curveRect = new Rectangle(banner.curveStart, 0, banner.curve_width, size.y);
+ if (bottomRect != null) bottom.setBounds(bottomRect);
+ if (rightRect != null) right.setBounds(rightRect);
+ if (leftRect != null) left.setBounds(leftRect);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java
new file mode 100755
index 0000000000..f07a52ab39
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CCombo.java
@@ -0,0 +1,1793 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.accessibility.*;
+
+/**
+ * The CCombo class represents a selectable user interface object
+ * that combines a text field and a list and issues notification
+ * when an item is selected from the list.
+ * <p>
+ * CCombo was written to work around certain limitations in the native
+ * combo box. Specifically, on win32, the height of a CCombo can be set;
+ * attempts to set the height of a Combo are ignored. CCombo can be used
+ * anywhere that having the increased flexibility is more important than
+ * getting native L&F, but the decision should not be taken lightly.
+ * There is no is no strict requirement that CCombo look or behave
+ * the same as the native combo box.
+ * </p>
+ * <p>
+ * Note that although this class is a subclass of <code>Composite</code>,
+ * it does not make sense to add children to it, or set a layout on it.
+ * </p>
+ * <dl>
+ * <dt><b>Styles:</b>
+ * <dd>BORDER, READ_ONLY, FLAT</dd>
+ * <dt><b>Events:</b>
+ * <dd>DefaultSelection, Modify, Selection, Verify</dd>
+ * </dl>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#ccombo">CCombo snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: CustomControlExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class CCombo extends Composite {
+
+ Text text;
+ List list;
+ int visibleItemCount = 5;
+ Shell popup;
+ Button arrow;
+ boolean hasFocus;
+ Listener listener, filter;
+ Color foreground, background;
+ Font font;
+ Shell _shell;
+
+ static final String PACKAGE_PREFIX = "org.eclipse.swt.custom."; //$NON-NLS-1$
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see SWT#READ_ONLY
+ * @see SWT#FLAT
+ * @see Widget#getStyle()
+ */
+public CCombo (Composite parent, int style) {
+ super (parent, style = checkStyle (style));
+ _shell = super.getShell ();
+
+ int textStyle = SWT.SINGLE;
+ if ((style & SWT.READ_ONLY) != 0) textStyle |= SWT.READ_ONLY;
+ if ((style & SWT.FLAT) != 0) textStyle |= SWT.FLAT;
+ text = new Text (this, textStyle);
+ int arrowStyle = SWT.ARROW | SWT.DOWN;
+ if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT;
+ arrow = new Button (this, arrowStyle);
+
+ listener = new Listener () {
+ public void handleEvent (Event event) {
+ if (isDisposed ()) return;
+ if (popup == event.widget) {
+ popupEvent (event);
+ return;
+ }
+ if (text == event.widget) {
+ textEvent (event);
+ return;
+ }
+ if (list == event.widget) {
+ listEvent (event);
+ return;
+ }
+ if (arrow == event.widget) {
+ arrowEvent (event);
+ return;
+ }
+ if (CCombo.this == event.widget) {
+ comboEvent (event);
+ return;
+ }
+ if (getShell () == event.widget) {
+ getDisplay().asyncExec(new Runnable() {
+ public void run() {
+ if (isDisposed ()) return;
+ handleFocus (SWT.FocusOut);
+ }
+ });
+ }
+ }
+ };
+ filter = new Listener() {
+ public void handleEvent(Event event) {
+ if (isDisposed ()) return;
+ Shell shell = ((Control)event.widget).getShell ();
+ if (shell == CCombo.this.getShell ()) {
+ handleFocus (SWT.FocusOut);
+ }
+ }
+ };
+
+ int [] comboEvents = {SWT.Dispose, SWT.FocusIn, SWT.Move, SWT.Resize};
+ for (int i=0; i<comboEvents.length; i++) this.addListener (comboEvents [i], listener);
+
+ int [] textEvents = {SWT.DefaultSelection, SWT.KeyDown, SWT.KeyUp, SWT.MenuDetect, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.MouseDoubleClick, SWT.MouseWheel, SWT.Traverse, SWT.FocusIn, SWT.Verify};
+ for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener);
+
+ int [] arrowEvents = {SWT.MouseDown, SWT.MouseUp, SWT.Selection, SWT.FocusIn};
+ for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], listener);
+
+ createPopup(null, -1);
+ initAccessible();
+}
+static int checkStyle (int style) {
+ int mask = SWT.BORDER | SWT.READ_ONLY | SWT.FLAT | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ return SWT.NO_FOCUS | (style & mask);
+}
+/**
+ * Adds the argument to the end of the receiver's list.
+ *
+ * @param string the new item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #add(String,int)
+ */
+public void add (String string) {
+ checkWidget();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ list.add (string);
+}
+/**
+ * Adds the argument to the receiver's list at the given
+ * zero-relative index.
+ * <p>
+ * Note: To add an item at the end of the list, use the
+ * result of calling <code>getItemCount()</code> as the
+ * index or use <code>add(String)</code>.
+ * </p>
+ *
+ * @param string the new item
+ * @param index the index for the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #add(String)
+ */
+public void add (String string, int index) {
+ checkWidget();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ list.add (string, index);
+}
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the receiver's text is modified, by sending
+ * it one of the messages defined in the <code>ModifyListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ModifyListener
+ * @see #removeModifyListener
+ */
+public void addModifyListener (ModifyListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Modify, typedListener);
+}
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the user changes the receiver's selection, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * <code>widgetSelected</code> is called when the combo's list selection changes.
+ * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's selection
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #removeSelectionListener
+ * @see SelectionEvent
+ */
+public void addSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Selection,typedListener);
+ addListener (SWT.DefaultSelection,typedListener);
+}
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the receiver's text is verified, by sending
+ * it one of the messages defined in the <code>VerifyListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see VerifyListener
+ * @see #removeVerifyListener
+ *
+ * @since 3.3
+ */
+public void addVerifyListener (VerifyListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Verify,typedListener);
+}
+void arrowEvent (Event event) {
+ switch (event.type) {
+ case SWT.FocusIn: {
+ handleFocus (SWT.FocusIn);
+ break;
+ }
+ case SWT.MouseDown: {
+ Event mouseEvent = new Event ();
+ mouseEvent.button = event.button;
+ mouseEvent.count = event.count;
+ mouseEvent.stateMask = event.stateMask;
+ mouseEvent.time = event.time;
+ mouseEvent.x = event.x; mouseEvent.y = event.y;
+ notifyListeners (SWT.MouseDown, mouseEvent);
+ event.doit = mouseEvent.doit;
+ break;
+ }
+ case SWT.MouseUp: {
+ Event mouseEvent = new Event ();
+ mouseEvent.button = event.button;
+ mouseEvent.count = event.count;
+ mouseEvent.stateMask = event.stateMask;
+ mouseEvent.time = event.time;
+ mouseEvent.x = event.x; mouseEvent.y = event.y;
+ notifyListeners (SWT.MouseUp, mouseEvent);
+ event.doit = mouseEvent.doit;
+ break;
+ }
+ case SWT.Selection: {
+ text.setFocus();
+ dropDown (!isDropped ());
+ break;
+ }
+ }
+}
+protected void checkSubclass () {
+ String name = getClass ().getName ();
+ int index = name.lastIndexOf ('.');
+ if (!name.substring (0, index + 1).equals (PACKAGE_PREFIX)) {
+ SWT.error (SWT.ERROR_INVALID_SUBCLASS);
+ }
+}
+/**
+ * Sets the selection in the receiver's text field to an empty
+ * selection starting just before the first character. If the
+ * text field is editable, this has the effect of placing the
+ * i-beam at the start of the text.
+ * <p>
+ * Note: To clear the selected items in the receiver's list,
+ * use <code>deselectAll()</code>.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #deselectAll
+ */
+public void clearSelection () {
+ checkWidget ();
+ text.clearSelection ();
+ list.deselectAll ();
+}
+void comboEvent (Event event) {
+ switch (event.type) {
+ case SWT.Dispose:
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ if (popup != null && !popup.isDisposed ()) {
+ list.removeListener (SWT.Dispose, listener);
+ popup.dispose ();
+ }
+ Shell shell = getShell ();
+ shell.removeListener (SWT.Deactivate, listener);
+ Display display = getDisplay ();
+ display.removeFilter (SWT.FocusIn, filter);
+ popup = null;
+ text = null;
+ list = null;
+ arrow = null;
+ _shell = null;
+ break;
+ case SWT.FocusIn:
+ Control focusControl = getDisplay ().getFocusControl ();
+ if (focusControl == arrow || focusControl == list) return;
+ if (isDropped()) {
+ list.setFocus();
+ } else {
+ text.setFocus();
+ }
+ break;
+ case SWT.Move:
+ dropDown (false);
+ break;
+ case SWT.Resize:
+ internalLayout (false);
+ break;
+ }
+}
+
+public Point computeSize (int wHint, int hHint, boolean changed) {
+ checkWidget ();
+ int width = 0, height = 0;
+ String[] items = list.getItems ();
+ GC gc = new GC (text);
+ int spacer = gc.stringExtent (" ").x; //$NON-NLS-1$
+ int textWidth = gc.stringExtent (text.getText ()).x;
+ for (int i = 0; i < items.length; i++) {
+ textWidth = Math.max (gc.stringExtent (items[i]).x, textWidth);
+ }
+ gc.dispose ();
+ Point textSize = text.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed);
+ Point arrowSize = arrow.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed);
+ Point listSize = list.computeSize (SWT.DEFAULT, SWT.DEFAULT, changed);
+ int borderWidth = getBorderWidth ();
+
+ height = Math.max (textSize.y, arrowSize.y);
+ width = Math.max (textWidth + 2*spacer + arrowSize.x + 2*borderWidth, listSize.x);
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ return new Point (width + 2*borderWidth, height + 2*borderWidth);
+}
+/**
+ * Copies the selected text.
+ * <p>
+ * The current selection is copied to the clipboard.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+public void copy () {
+ checkWidget ();
+ text.copy ();
+}
+void createPopup(String[] items, int selectionIndex) {
+ // create shell and list
+ popup = new Shell (getShell (), SWT.NO_TRIM | SWT.ON_TOP);
+ int style = getStyle ();
+ int listStyle = SWT.SINGLE | SWT.V_SCROLL;
+ if ((style & SWT.FLAT) != 0) listStyle |= SWT.FLAT;
+ if ((style & SWT.RIGHT_TO_LEFT) != 0) listStyle |= SWT.RIGHT_TO_LEFT;
+ if ((style & SWT.LEFT_TO_RIGHT) != 0) listStyle |= SWT.LEFT_TO_RIGHT;
+ list = new List (popup, listStyle);
+ if (font != null) list.setFont (font);
+ if (foreground != null) list.setForeground (foreground);
+ if (background != null) list.setBackground (background);
+
+ int [] popupEvents = {SWT.Close, SWT.Paint, SWT.Deactivate};
+ for (int i=0; i<popupEvents.length; i++) popup.addListener (popupEvents [i], listener);
+ int [] listEvents = {SWT.MouseUp, SWT.Selection, SWT.Traverse, SWT.KeyDown, SWT.KeyUp, SWT.FocusIn, SWT.Dispose};
+ for (int i=0; i<listEvents.length; i++) list.addListener (listEvents [i], listener);
+
+ if (items != null) list.setItems (items);
+ if (selectionIndex != -1) list.setSelection (selectionIndex);
+}
+/**
+ * Cuts the selected text.
+ * <p>
+ * The current selection is first copied to the
+ * clipboard and then deleted from the widget.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+public void cut () {
+ checkWidget ();
+ text.cut ();
+}
+/**
+ * Deselects the item at the given zero-relative index in the receiver's
+ * list. If the item at the index was already deselected, it remains
+ * deselected. Indices that are out of range are ignored.
+ *
+ * @param index the index of the item to deselect
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void deselect (int index) {
+ checkWidget ();
+ if (0 <= index && index < list.getItemCount () &&
+ index == list.getSelectionIndex() &&
+ text.getText().equals(list.getItem(index))) {
+ text.setText(""); //$NON-NLS-1$
+ list.deselect (index);
+ }
+}
+/**
+ * Deselects all selected items in the receiver's list.
+ * <p>
+ * Note: To clear the selection in the receiver's text field,
+ * use <code>clearSelection()</code>.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #clearSelection
+ */
+public void deselectAll () {
+ checkWidget ();
+ text.setText(""); //$NON-NLS-1$
+ list.deselectAll ();
+}
+void dropDown (boolean drop) {
+ if (drop == isDropped ()) return;
+ if (!drop) {
+ popup.setVisible (false);
+ if (!isDisposed () && isFocusControl()) {
+ text.setFocus();
+ }
+ return;
+ }
+ if (!isVisible()) return;
+ if (getShell() != popup.getParent ()) {
+ String[] items = list.getItems ();
+ int selectionIndex = list.getSelectionIndex ();
+ list.removeListener (SWT.Dispose, listener);
+ popup.dispose();
+ popup = null;
+ list = null;
+ createPopup (items, selectionIndex);
+ }
+
+ Point size = getSize ();
+ int itemCount = list.getItemCount ();
+ itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount);
+ int itemHeight = list.getItemHeight () * itemCount;
+ Point listSize = list.computeSize (SWT.DEFAULT, itemHeight, false);
+ list.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y);
+
+ int index = list.getSelectionIndex ();
+ if (index != -1) list.setTopIndex (index);
+ Display display = getDisplay ();
+ Rectangle listRect = list.getBounds ();
+ Rectangle parentRect = display.map (getParent (), null, getBounds ());
+ Point comboSize = getSize ();
+ Rectangle displayRect = getMonitor ().getClientArea ();
+ int width = Math.max (comboSize.x, listRect.width + 2);
+ int height = listRect.height + 2;
+ int x = parentRect.x;
+ int y = parentRect.y + comboSize.y;
+ if (y + height > displayRect.y + displayRect.height) y = parentRect.y - height;
+ if (x + width > displayRect.x + displayRect.width) x = displayRect.x + displayRect.width - listRect.width;
+ popup.setBounds (x, y, width, height);
+ popup.setVisible (true);
+ if (isFocusControl()) list.setFocus ();
+}
+/*
+ * Return the lowercase of the first non-'&' character following
+ * an '&' character in the given string. If there are no '&'
+ * characters in the given string, return '\0'.
+ */
+char _findMnemonic (String string) {
+ if (string == null) return '\0';
+ int index = 0;
+ int length = string.length ();
+ do {
+ while (index < length && string.charAt (index) != '&') index++;
+ if (++index >= length) return '\0';
+ if (string.charAt (index) != '&') return Character.toLowerCase (string.charAt (index));
+ index++;
+ } while (index < length);
+ return '\0';
+}
+/*
+ * Return the Label immediately preceding the receiver in the z-order,
+ * or null if none.
+ */
+Label getAssociatedLabel () {
+ Control[] siblings = getParent ().getChildren ();
+ for (int i = 0; i < siblings.length; i++) {
+ if (siblings [i] == this) {
+ if (i > 0 && siblings [i-1] instanceof Label) {
+ return (Label) siblings [i-1];
+ }
+ }
+ }
+ return null;
+}
+public Control [] getChildren () {
+ checkWidget();
+ return new Control [0];
+}
+/**
+ * Gets the editable state.
+ *
+ * @return whether or not the receiver is editable
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getEditable () {
+ checkWidget ();
+ return text.getEditable();
+}
+/**
+ * Returns the item at the given, zero-relative index in the
+ * receiver's list. Throws an exception if the index is out
+ * of range.
+ *
+ * @param index the index of the item to return
+ * @return the item at the given index
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getItem (int index) {
+ checkWidget();
+ return list.getItem (index);
+}
+/**
+ * Returns the number of items contained in the receiver's list.
+ *
+ * @return the number of items
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getItemCount () {
+ checkWidget ();
+ return list.getItemCount ();
+}
+/**
+ * Returns the height of the area which would be used to
+ * display <em>one</em> of the items in the receiver's list.
+ *
+ * @return the height of one item
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getItemHeight () {
+ checkWidget ();
+ return list.getItemHeight ();
+}
+/**
+ * Returns an array of <code>String</code>s which are the items
+ * in the receiver's list.
+ * <p>
+ * Note: This is not the actual structure used by the receiver
+ * to maintain its list of items, so modifying the array will
+ * not affect the receiver.
+ * </p>
+ *
+ * @return the items in the receiver's list
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String [] getItems () {
+ checkWidget ();
+ return list.getItems ();
+}
+/**
+ * Returns <code>true</code> if the receiver's list is visible,
+ * and <code>false</code> otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, this method
+ * may still indicate that it is considered visible even though
+ * it may not actually be showing.
+ * </p>
+ *
+ * @return the receiver's list's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public boolean getListVisible () {
+ checkWidget ();
+ return isDropped();
+}
+public Menu getMenu() {
+ return text.getMenu();
+}
+/**
+ * Returns a <code>Point</code> whose x coordinate is the start
+ * of the selection in the receiver's text field, and whose y
+ * coordinate is the end of the selection. The returned values
+ * are zero-relative. An "empty" selection as indicated by
+ * the the x and y coordinates having the same value.
+ *
+ * @return a point representing the selection start and end
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getSelection () {
+ checkWidget ();
+ return text.getSelection ();
+}
+/**
+ * Returns the zero-relative index of the item which is currently
+ * selected in the receiver's list, or -1 if no item is selected.
+ *
+ * @return the index of the selected item
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getSelectionIndex () {
+ checkWidget ();
+ return list.getSelectionIndex ();
+}
+public Shell getShell () {
+ checkWidget ();
+ Shell shell = super.getShell ();
+ if (shell != _shell) {
+ if (_shell != null && !_shell.isDisposed ()) {
+ _shell.removeListener (SWT.Deactivate, listener);
+ }
+ _shell = shell;
+ }
+ return _shell;
+}
+public int getStyle () {
+ int style = super.getStyle ();
+ style &= ~SWT.READ_ONLY;
+ if (!text.getEditable()) style |= SWT.READ_ONLY;
+ return style;
+}
+/**
+ * Returns a string containing a copy of the contents of the
+ * receiver's text field.
+ *
+ * @return the receiver's text
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getText () {
+ checkWidget ();
+ return text.getText ();
+}
+/**
+ * Returns the height of the receivers's text field.
+ *
+ * @return the text height
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTextHeight () {
+ checkWidget ();
+ return text.getLineHeight ();
+}
+/**
+ * Returns the maximum number of characters that the receiver's
+ * text field is capable of holding. If this has not been changed
+ * by <code>setTextLimit()</code>, it will be the constant
+ * <code>Combo.LIMIT</code>.
+ *
+ * @return the text limit
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTextLimit () {
+ checkWidget ();
+ return text.getTextLimit ();
+}
+/**
+ * Gets the number of items that are visible in the drop
+ * down portion of the receiver's list.
+ *
+ * @return the number of items that are visible
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public int getVisibleItemCount () {
+ checkWidget ();
+ return visibleItemCount;
+}
+void handleFocus (int type) {
+ switch (type) {
+ case SWT.FocusIn: {
+ if (hasFocus) return;
+ if (getEditable ()) text.selectAll ();
+ hasFocus = true;
+ Shell shell = getShell ();
+ shell.removeListener (SWT.Deactivate, listener);
+ shell.addListener (SWT.Deactivate, listener);
+ Display display = getDisplay ();
+ display.removeFilter (SWT.FocusIn, filter);
+ display.addFilter (SWT.FocusIn, filter);
+ Event e = new Event ();
+ notifyListeners (SWT.FocusIn, e);
+ break;
+ }
+ case SWT.FocusOut: {
+ if (!hasFocus) return;
+ Control focusControl = getDisplay ().getFocusControl ();
+ if (focusControl == arrow || focusControl == list || focusControl == text) return;
+ hasFocus = false;
+ Shell shell = getShell ();
+ shell.removeListener(SWT.Deactivate, listener);
+ Display display = getDisplay ();
+ display.removeFilter (SWT.FocusIn, filter);
+ Event e = new Event ();
+ notifyListeners (SWT.FocusOut, e);
+ break;
+ }
+ }
+}
+/**
+ * Searches the receiver's list starting at the first item
+ * (index 0) until an item is found that is equal to the
+ * argument, and returns the index of that item. If no item
+ * is found, returns -1.
+ *
+ * @param string the search item
+ * @return the index of the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int indexOf (String string) {
+ checkWidget ();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ return list.indexOf (string);
+}
+/**
+ * Searches the receiver's list starting at the given,
+ * zero-relative index until an item is found that is equal
+ * to the argument, and returns the index of that item. If
+ * no item is found or the starting index is out of range,
+ * returns -1.
+ *
+ * @param string the search item
+ * @param start the zero-relative index at which to begin the search
+ * @return the index of the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int indexOf (String string, int start) {
+ checkWidget ();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ return list.indexOf (string, start);
+}
+
+void initAccessible() {
+ AccessibleAdapter accessibleAdapter = new AccessibleAdapter () {
+ public void getName (AccessibleEvent e) {
+ String name = null;
+ Label label = getAssociatedLabel ();
+ if (label != null) {
+ name = stripMnemonic (label.getText());
+ }
+ e.result = name;
+ }
+ public void getKeyboardShortcut(AccessibleEvent e) {
+ String shortcut = null;
+ Label label = getAssociatedLabel ();
+ if (label != null) {
+ String text = label.getText ();
+ if (text != null) {
+ char mnemonic = _findMnemonic (text);
+ if (mnemonic != '\0') {
+ shortcut = "Alt+"+mnemonic; //$NON-NLS-1$
+ }
+ }
+ }
+ e.result = shortcut;
+ }
+ public void getHelp (AccessibleEvent e) {
+ e.result = getToolTipText ();
+ }
+ };
+ getAccessible ().addAccessibleListener (accessibleAdapter);
+ text.getAccessible ().addAccessibleListener (accessibleAdapter);
+ list.getAccessible ().addAccessibleListener (accessibleAdapter);
+
+ arrow.getAccessible ().addAccessibleListener (new AccessibleAdapter() {
+ public void getName (AccessibleEvent e) {
+ e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ public void getKeyboardShortcut (AccessibleEvent e) {
+ e.result = "Alt+Down Arrow"; //$NON-NLS-1$
+ }
+ public void getHelp (AccessibleEvent e) {
+ e.result = getToolTipText ();
+ }
+ });
+
+ getAccessible().addAccessibleTextListener (new AccessibleTextAdapter() {
+ public void getCaretOffset (AccessibleTextEvent e) {
+ e.offset = text.getCaretPosition ();
+ }
+ public void getSelectionRange(AccessibleTextEvent e) {
+ Point sel = text.getSelection();
+ e.offset = sel.x;
+ e.length = sel.y - sel.x;
+ }
+ });
+
+ getAccessible().addAccessibleControlListener (new AccessibleControlAdapter() {
+ public void getChildAtPoint (AccessibleControlEvent e) {
+ Point testPoint = toControl (e.x, e.y);
+ if (getBounds ().contains (testPoint)) {
+ e.childID = ACC.CHILDID_SELF;
+ }
+ }
+
+ public void getLocation (AccessibleControlEvent e) {
+ Rectangle location = getBounds ();
+ Point pt = getParent().toDisplay (location.x, location.y);
+ e.x = pt.x;
+ e.y = pt.y;
+ e.width = location.width;
+ e.height = location.height;
+ }
+
+ public void getChildCount (AccessibleControlEvent e) {
+ e.detail = 0;
+ }
+
+ public void getRole (AccessibleControlEvent e) {
+ e.detail = ACC.ROLE_COMBOBOX;
+ }
+
+ public void getState (AccessibleControlEvent e) {
+ e.detail = ACC.STATE_NORMAL;
+ }
+
+ public void getValue (AccessibleControlEvent e) {
+ e.result = getText ();
+ }
+ });
+
+ text.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter () {
+ public void getRole (AccessibleControlEvent e) {
+ e.detail = text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL;
+ }
+ });
+
+ arrow.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter() {
+ public void getDefaultAction (AccessibleControlEvent e) {
+ e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ });
+}
+boolean isDropped () {
+ return popup.getVisible ();
+}
+public boolean isFocusControl () {
+ checkWidget();
+ if (text.isFocusControl () || arrow.isFocusControl () || list.isFocusControl () || popup.isFocusControl ()) {
+ return true;
+ }
+ return super.isFocusControl ();
+}
+void internalLayout (boolean changed) {
+ if (isDropped ()) dropDown (false);
+ Rectangle rect = getClientArea ();
+ int width = rect.width;
+ int height = rect.height;
+ Point arrowSize = arrow.computeSize (SWT.DEFAULT, height, changed);
+ text.setBounds (0, 0, width - arrowSize.x, height);
+ arrow.setBounds (width - arrowSize.x, 0, arrowSize.x, arrowSize.y);
+}
+void listEvent (Event event) {
+ switch (event.type) {
+ case SWT.Dispose:
+ if (getShell () != popup.getParent ()) {
+ String[] items = list.getItems ();
+ int selectionIndex = list.getSelectionIndex ();
+ popup = null;
+ list = null;
+ createPopup (items, selectionIndex);
+ }
+ break;
+ case SWT.FocusIn: {
+ handleFocus (SWT.FocusIn);
+ break;
+ }
+ case SWT.MouseUp: {
+ if (event.button != 1) return;
+ dropDown (false);
+ break;
+ }
+ case SWT.Selection: {
+ int index = list.getSelectionIndex ();
+ if (index == -1) return;
+ text.setText (list.getItem (index));
+ text.selectAll ();
+ list.setSelection (index);
+ Event e = new Event ();
+ e.time = event.time;
+ e.stateMask = event.stateMask;
+ e.doit = event.doit;
+ notifyListeners (SWT.Selection, e);
+ event.doit = e.doit;
+ break;
+ }
+ case SWT.Traverse: {
+ switch (event.detail) {
+ case SWT.TRAVERSE_RETURN:
+ case SWT.TRAVERSE_ESCAPE:
+ case SWT.TRAVERSE_ARROW_PREVIOUS:
+ case SWT.TRAVERSE_ARROW_NEXT:
+ event.doit = false;
+ break;
+ case SWT.TRAVERSE_TAB_NEXT:
+ case SWT.TRAVERSE_TAB_PREVIOUS:
+ event.doit = text.traverse(event.detail);
+ event.detail = SWT.TRAVERSE_NONE;
+ if (event.doit) dropDown(false);
+ return;
+ }
+ Event e = new Event ();
+ e.time = event.time;
+ e.detail = event.detail;
+ e.doit = event.doit;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ notifyListeners (SWT.Traverse, e);
+ event.doit = e.doit;
+ event.detail = e.detail;
+ break;
+ }
+ case SWT.KeyUp: {
+ Event e = new Event ();
+ e.time = event.time;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.KeyUp, e);
+ break;
+ }
+ case SWT.KeyDown: {
+ if (event.character == SWT.ESC) {
+ // Escape key cancels popup list
+ dropDown (false);
+ }
+ if ((event.stateMask & SWT.ALT) != 0 && (event.keyCode == SWT.ARROW_UP || event.keyCode == SWT.ARROW_DOWN)) {
+ dropDown (false);
+ }
+ if (event.character == SWT.CR) {
+ // Enter causes default selection
+ dropDown (false);
+ Event e = new Event ();
+ e.time = event.time;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.DefaultSelection, e);
+ }
+ // At this point the widget may have been disposed.
+ // If so, do not continue.
+ if (isDisposed ()) break;
+ Event e = new Event();
+ e.time = event.time;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ e.stateMask = event.stateMask;
+ notifyListeners(SWT.KeyDown, e);
+ break;
+
+ }
+ }
+}
+/**
+ * Pastes text from clipboard.
+ * <p>
+ * The selected text is deleted from the widget
+ * and new text inserted from the clipboard.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.3
+ */
+public void paste () {
+ checkWidget ();
+ text.paste ();
+}
+void popupEvent(Event event) {
+ switch (event.type) {
+ case SWT.Paint:
+ // draw black rectangle around list
+ Rectangle listRect = list.getBounds();
+ Color black = getDisplay().getSystemColor(SWT.COLOR_BLACK);
+ event.gc.setForeground(black);
+ event.gc.drawRectangle(0, 0, listRect.width + 1, listRect.height + 1);
+ break;
+ case SWT.Close:
+ event.doit = false;
+ dropDown (false);
+ break;
+ case SWT.Deactivate:
+ /*
+ * Bug in GTK. When the arrow button is pressed the popup control receives a
+ * deactivate event and then the arrow button receives a selection event. If
+ * we hide the popup in the deactivate event, the selection event will show
+ * it again. To prevent the popup from showing again, we will let the selection
+ * event of the arrow button hide the popup.
+ * In Windows, hiding the popup during the deactivate causes the deactivate
+ * to be called twice and the selection event to be disappear.
+ */
+ if (!"carbon".equals(SWT.getPlatform())) {
+ Point point = arrow.toControl(getDisplay().getCursorLocation());
+ Point size = arrow.getSize();
+ Rectangle rect = new Rectangle(0, 0, size.x, size.y);
+ if (!rect.contains(point)) dropDown (false);
+ } else {
+ dropDown(false);
+ }
+ break;
+ }
+}
+public void redraw () {
+ super.redraw();
+ text.redraw();
+ arrow.redraw();
+ if (popup.isVisible()) list.redraw();
+}
+public void redraw (int x, int y, int width, int height, boolean all) {
+ super.redraw(x, y, width, height, true);
+}
+
+/**
+ * Removes the item from the receiver's list at the given
+ * zero-relative index.
+ *
+ * @param index the index for the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void remove (int index) {
+ checkWidget();
+ list.remove (index);
+}
+/**
+ * Removes the items from the receiver's list which are
+ * between the given zero-relative start and end
+ * indices (inclusive).
+ *
+ * @param start the start of the range
+ * @param end the end of the range
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void remove (int start, int end) {
+ checkWidget();
+ list.remove (start, end);
+}
+/**
+ * Searches the receiver's list starting at the first item
+ * until an item is found that is equal to the argument,
+ * and removes that item from the list.
+ *
+ * @param string the item to remove
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void remove (String string) {
+ checkWidget();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ list.remove (string);
+}
+/**
+ * Removes all of the items from the receiver's list and clear the
+ * contents of receiver's text field.
+ * <p>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void removeAll () {
+ checkWidget();
+ text.setText (""); //$NON-NLS-1$
+ list.removeAll ();
+}
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the receiver's text is modified.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see ModifyListener
+ * @see #addModifyListener
+ */
+public void removeModifyListener (ModifyListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Modify, listener);
+}
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's selection.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #addSelectionListener
+ */
+public void removeSelectionListener (SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Selection, listener);
+ removeListener(SWT.DefaultSelection,listener);
+}
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the control is verified.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see VerifyListener
+ * @see #addVerifyListener
+ *
+ * @since 3.3
+ */
+public void removeVerifyListener (VerifyListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Verify, listener);
+}
+/**
+ * Selects the item at the given zero-relative index in the receiver's
+ * list. If the item at the index was already selected, it remains
+ * selected. Indices that are out of range are ignored.
+ *
+ * @param index the index of the item to select
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void select (int index) {
+ checkWidget();
+ if (index == -1) {
+ list.deselectAll ();
+ text.setText (""); //$NON-NLS-1$
+ return;
+ }
+ if (0 <= index && index < list.getItemCount()) {
+ if (index != getSelectionIndex()) {
+ text.setText (list.getItem (index));
+ text.selectAll ();
+ list.select (index);
+ list.showSelection ();
+ }
+ }
+}
+public void setBackground (Color color) {
+ super.setBackground(color);
+ background = color;
+ if (text != null) text.setBackground(color);
+ if (list != null) list.setBackground(color);
+ if (arrow != null) arrow.setBackground(color);
+}
+/**
+ * Sets the editable state.
+ *
+ * @param editable the new editable state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setEditable (boolean editable) {
+ checkWidget ();
+ text.setEditable(editable);
+}
+public void setEnabled (boolean enabled) {
+ super.setEnabled(enabled);
+ if (popup != null) popup.setVisible (false);
+ if (text != null) text.setEnabled(enabled);
+ if (arrow != null) arrow.setEnabled(enabled);
+}
+public boolean setFocus () {
+ checkWidget();
+ if (!isEnabled () || !isVisible ()) return false;
+ if (isFocusControl ()) return true;
+ return text.setFocus ();
+}
+public void setFont (Font font) {
+ super.setFont (font);
+ this.font = font;
+ text.setFont (font);
+ list.setFont (font);
+ internalLayout (true);
+}
+public void setForeground (Color color) {
+ super.setForeground(color);
+ foreground = color;
+ if (text != null) text.setForeground(color);
+ if (list != null) list.setForeground(color);
+ if (arrow != null) arrow.setForeground(color);
+}
+/**
+ * Sets the text of the item in the receiver's list at the given
+ * zero-relative index to the string argument. This is equivalent
+ * to <code>remove</code>'ing the old item at the index, and then
+ * <code>add</code>'ing the new item at that index.
+ *
+ * @param index the index for the item
+ * @param string the new text for the item
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setItem (int index, String string) {
+ checkWidget();
+ list.setItem (index, string);
+}
+/**
+ * Sets the receiver's list to be the given array of items.
+ *
+ * @param items the array of items
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the items array is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setItems (String [] items) {
+ checkWidget ();
+ list.setItems (items);
+ if (!text.getEditable ()) text.setText (""); //$NON-NLS-1$
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget ();
+ return;
+}
+/**
+ * Marks the receiver's list as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, marking
+ * it visible may not actually cause it to be displayed.
+ * </p>
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setListVisible (boolean visible) {
+ checkWidget ();
+ dropDown(visible);
+}
+public void setMenu(Menu menu) {
+ text.setMenu(menu);
+}
+/**
+ * Sets the selection in the receiver's text field to the
+ * range specified by the argument whose x coordinate is the
+ * start of the selection and whose y coordinate is the end
+ * of the selection.
+ *
+ * @param selection a point representing the new selection start and end
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSelection (Point selection) {
+ checkWidget();
+ if (selection == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ text.setSelection (selection.x, selection.y);
+}
+
+/**
+ * Sets the contents of the receiver's text field to the
+ * given string.
+ * <p>
+ * Note: The text field in a <code>Combo</code> is typically
+ * only capable of displaying a single line of text. Thus,
+ * setting the text to a string containing line breaks or
+ * other special characters will probably cause it to
+ * display incorrectly.
+ * </p>
+ *
+ * @param string the new text
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setText (String string) {
+ checkWidget();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ int index = list.indexOf (string);
+ if (index == -1) {
+ list.deselectAll ();
+ text.setText (string);
+ return;
+ }
+ text.setText (string);
+ text.selectAll ();
+ list.setSelection (index);
+ list.showSelection ();
+}
+/**
+ * Sets the maximum number of characters that the receiver's
+ * text field is capable of holding to be the argument.
+ *
+ * @param limit new text limit
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setTextLimit (int limit) {
+ checkWidget();
+ text.setTextLimit (limit);
+}
+
+public void setToolTipText (String string) {
+ checkWidget();
+ super.setToolTipText(string);
+ arrow.setToolTipText (string);
+ text.setToolTipText (string);
+}
+
+public void setVisible (boolean visible) {
+ super.setVisible(visible);
+ /*
+ * At this point the widget may have been disposed in a FocusOut event.
+ * If so then do not continue.
+ */
+ if (isDisposed ()) return;
+ // TEMPORARY CODE
+ if (popup == null || popup.isDisposed ()) return;
+ if (!visible) popup.setVisible (false);
+}
+/**
+ * Sets the number of items that are visible in the drop
+ * down portion of the receiver's list.
+ *
+ * @param count the new number of items to be visible
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setVisibleItemCount (int count) {
+ checkWidget ();
+ if (count < 0) return;
+ visibleItemCount = count;
+}
+String stripMnemonic (String string) {
+ int index = 0;
+ int length = string.length ();
+ do {
+ while ((index < length) && (string.charAt (index) != '&')) index++;
+ if (++index >= length) return string;
+ if (string.charAt (index) != '&') {
+ return string.substring(0, index-1) + string.substring(index, length);
+ }
+ index++;
+ } while (index < length);
+ return string;
+}
+void textEvent (Event event) {
+ switch (event.type) {
+ case SWT.FocusIn: {
+ handleFocus (SWT.FocusIn);
+ break;
+ }
+ case SWT.DefaultSelection: {
+ dropDown (false);
+ Event e = new Event ();
+ e.time = event.time;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.DefaultSelection, e);
+ break;
+ }
+ case SWT.KeyDown: {
+ Event keyEvent = new Event ();
+ keyEvent.time = event.time;
+ keyEvent.character = event.character;
+ keyEvent.keyCode = event.keyCode;
+ keyEvent.stateMask = event.stateMask;
+ notifyListeners (SWT.KeyDown, keyEvent);
+ if (isDisposed ()) break;
+ event.doit = keyEvent.doit;
+ if (!event.doit) break;
+ if (event.keyCode == SWT.ARROW_UP || event.keyCode == SWT.ARROW_DOWN) {
+ event.doit = false;
+ if ((event.stateMask & SWT.ALT) != 0) {
+ boolean dropped = isDropped ();
+ text.selectAll ();
+ if (!dropped) setFocus ();
+ dropDown (!dropped);
+ break;
+ }
+
+ int oldIndex = getSelectionIndex ();
+ if (event.keyCode == SWT.ARROW_UP) {
+ select (Math.max (oldIndex - 1, 0));
+ } else {
+ select (Math.min (oldIndex + 1, getItemCount () - 1));
+ }
+ if (oldIndex != getSelectionIndex ()) {
+ Event e = new Event();
+ e.time = event.time;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.Selection, e);
+ }
+ if (isDisposed ()) break;
+ }
+
+ // Further work : Need to add support for incremental search in
+ // pop up list as characters typed in text widget
+ break;
+ }
+ case SWT.KeyUp: {
+ Event e = new Event ();
+ e.time = event.time;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.KeyUp, e);
+ event.doit = e.doit;
+ break;
+ }
+ case SWT.MenuDetect: {
+ Event e = new Event ();
+ e.time = event.time;
+ notifyListeners (SWT.MenuDetect, e);
+ break;
+ }
+ case SWT.Modify: {
+ list.deselectAll ();
+ Event e = new Event ();
+ e.time = event.time;
+ notifyListeners (SWT.Modify, e);
+ break;
+ }
+ case SWT.MouseDown: {
+ Event mouseEvent = new Event ();
+ mouseEvent.button = event.button;
+ mouseEvent.count = event.count;
+ mouseEvent.stateMask = event.stateMask;
+ mouseEvent.time = event.time;
+ mouseEvent.x = event.x; mouseEvent.y = event.y;
+ notifyListeners (SWT.MouseDown, mouseEvent);
+ if (isDisposed ()) break;
+ event.doit = mouseEvent.doit;
+ if (!event.doit) break;
+ if (event.button != 1) return;
+ if (text.getEditable ()) return;
+ boolean dropped = isDropped ();
+ text.selectAll ();
+ if (!dropped) setFocus ();
+ dropDown (!dropped);
+ break;
+ }
+ case SWT.MouseUp: {
+ Event mouseEvent = new Event ();
+ mouseEvent.button = event.button;
+ mouseEvent.count = event.count;
+ mouseEvent.stateMask = event.stateMask;
+ mouseEvent.time = event.time;
+ mouseEvent.x = event.x; mouseEvent.y = event.y;
+ notifyListeners (SWT.MouseUp, mouseEvent);
+ if (isDisposed ()) break;
+ event.doit = mouseEvent.doit;
+ if (!event.doit) break;
+ if (event.button != 1) return;
+ if (text.getEditable ()) return;
+ text.selectAll ();
+ break;
+ }
+ case SWT.MouseDoubleClick: {
+ Event mouseEvent = new Event ();
+ mouseEvent.button = event.button;
+ mouseEvent.count = event.count;
+ mouseEvent.stateMask = event.stateMask;
+ mouseEvent.time = event.time;
+ mouseEvent.x = event.x; mouseEvent.y = event.y;
+ notifyListeners (SWT.MouseDoubleClick, mouseEvent);
+ break;
+ }
+ case SWT.MouseWheel: {
+ Event keyEvent = new Event ();
+ keyEvent.time = event.time;
+ keyEvent.keyCode = event.count > 0 ? SWT.ARROW_UP : SWT.ARROW_DOWN;
+ keyEvent.stateMask = event.stateMask;
+ notifyListeners (SWT.KeyDown, keyEvent);
+ if (isDisposed ()) break;
+ event.doit = keyEvent.doit;
+ if (!event.doit) break;
+ if (event.count != 0) {
+ event.doit = false;
+ int oldIndex = getSelectionIndex ();
+ if (event.count > 0) {
+ select (Math.max (oldIndex - 1, 0));
+ } else {
+ select (Math.min (oldIndex + 1, getItemCount () - 1));
+ }
+ if (oldIndex != getSelectionIndex ()) {
+ Event e = new Event();
+ e.time = event.time;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.Selection, e);
+ }
+ if (isDisposed ()) break;
+ }
+ break;
+ }
+ case SWT.Traverse: {
+ switch (event.detail) {
+ case SWT.TRAVERSE_ARROW_PREVIOUS:
+ case SWT.TRAVERSE_ARROW_NEXT:
+ // The enter causes default selection and
+ // the arrow keys are used to manipulate the list contents so
+ // do not use them for traversal.
+ event.doit = false;
+ break;
+ case SWT.TRAVERSE_TAB_PREVIOUS:
+ event.doit = traverse(SWT.TRAVERSE_TAB_PREVIOUS);
+ event.detail = SWT.TRAVERSE_NONE;
+ return;
+ }
+ Event e = new Event ();
+ e.time = event.time;
+ e.detail = event.detail;
+ e.doit = event.doit;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ notifyListeners (SWT.Traverse, e);
+ event.doit = e.doit;
+ event.detail = e.detail;
+ break;
+ }
+ case SWT.Verify: {
+ Event e = new Event ();
+ e.text = event.text;
+ e.start = event.start;
+ e.end = event.end;
+ e.character = event.character;
+ e.keyCode = event.keyCode;
+ e.stateMask = event.stateMask;
+ notifyListeners (SWT.Verify, e);
+ event.doit = e.doit;
+ break;
+ }
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLabel.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLabel.java
new file mode 100755
index 0000000000..ddd3c6a529
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLabel.java
@@ -0,0 +1,826 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.accessibility.*;
+
+/**
+ * A Label which supports aligned text and/or an image and different border styles.
+ * <p>
+ * If there is not enough space a CLabel uses the following strategy to fit the
+ * information into the available space:
+ * <pre>
+ * ignores the indent in left align mode
+ * ignores the image and the gap
+ * shortens the text by replacing the center portion of the label with an ellipsis
+ * shortens the text by removing the center portion of the label
+ * </pre>
+ * <p>
+ * <dl>
+ * <dt><b>Styles:</b>
+ * <dd>LEFT, RIGHT, CENTER, SHADOW_IN, SHADOW_OUT, SHADOW_NONE</dd>
+ * <dt><b>Events:</b>
+ * <dd></dd>
+ * </dl>
+ *
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: CustomControlExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+public class CLabel extends Canvas {
+
+ /** Gap between icon and text */
+ private static final int GAP = 5;
+ /** Left and right margins */
+ private static final int INDENT = 3;
+ /** a string inserted in the middle of text that has been shortened */
+ private static final String ELLIPSIS = "..."; //$NON-NLS-1$ // could use the ellipsis glyph on some platforms "\u2026"
+ /** the alignment. Either CENTER, RIGHT, LEFT. Default is LEFT*/
+ private int align = SWT.LEFT;
+ private int hIndent = INDENT;
+ private int vIndent = INDENT;
+ /** the current text */
+ private String text;
+ /** the current icon */
+ private Image image;
+ // The tooltip is used for two purposes - the application can set
+ // a tooltip or the tooltip can be used to display the full text when the
+ // the text has been truncated due to the label being too short.
+ // The appToolTip stores the tooltip set by the application. Control.tooltiptext
+ // contains whatever tooltip is currently being displayed.
+ private String appToolTipText;
+
+ private Image backgroundImage;
+ private Color[] gradientColors;
+ private int[] gradientPercents;
+ private boolean gradientVertical;
+ private Color background;
+ private Listener disposeListener;
+
+ private static int DRAW_FLAGS = SWT.DRAW_MNEMONIC | SWT.DRAW_TAB | SWT.DRAW_TRANSPARENT | SWT.DRAW_DELIMITER;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#LEFT
+ * @see SWT#RIGHT
+ * @see SWT#CENTER
+ * @see SWT#SHADOW_IN
+ * @see SWT#SHADOW_OUT
+ * @see SWT#SHADOW_NONE
+ * @see #getStyle()
+ */
+public CLabel(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ if ((style & (SWT.CENTER | SWT.RIGHT)) == 0) style |= SWT.LEFT;
+ if ((style & SWT.CENTER) != 0) align = SWT.CENTER;
+ if ((style & SWT.RIGHT) != 0) align = SWT.RIGHT;
+ if ((style & SWT.LEFT) != 0) align = SWT.LEFT;
+
+ addPaintListener(new PaintListener(){
+ public void paintControl(PaintEvent event) {
+ onPaint(event);
+ }
+ });
+
+ addTraverseListener(new TraverseListener() {
+ public void keyTraversed(TraverseEvent event) {
+ if (event.detail == SWT.TRAVERSE_MNEMONIC) {
+ onMnemonic(event);
+ }
+ }
+ });
+
+ disposeListener = new Listener() {
+ public void handleEvent(Event event) {
+ onDispose(event);
+ }
+ };
+
+ initAccessible();
+
+}
+/**
+ * Check the style bits to ensure that no invalid styles are applied.
+ */
+private static int checkStyle (int style) {
+ if ((style & SWT.BORDER) != 0) style |= SWT.SHADOW_IN;
+ int mask = SWT.SHADOW_IN | SWT.SHADOW_OUT | SWT.SHADOW_NONE | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ style = style & mask;
+ return style |= SWT.NO_FOCUS | SWT.DOUBLE_BUFFERED;
+}
+
+//protected void checkSubclass () {
+// String name = getClass().getName ();
+// String validName = CLabel.class.getName();
+// if (!validName.equals(name)) {
+// SWT.error (SWT.ERROR_INVALID_SUBCLASS);
+// }
+//}
+
+public Point computeSize(int wHint, int hHint, boolean changed) {
+ checkWidget();
+ Point e = getTotalSize(image, text);
+ if (wHint == SWT.DEFAULT){
+ e.x += 2*hIndent;
+ } else {
+ e.x = wHint;
+ }
+ if (hHint == SWT.DEFAULT) {
+ e.y += 2*vIndent;
+ } else {
+ e.y = hHint;
+ }
+ return e;
+}
+/**
+ * Draw a rectangle in the given colors.
+ */
+private void drawBevelRect(GC gc, int x, int y, int w, int h, Color topleft, Color bottomright) {
+ gc.setForeground(bottomright);
+ gc.drawLine(x+w, y, x+w, y+h);
+ gc.drawLine(x, y+h, x+w, y+h);
+
+ gc.setForeground(topleft);
+ gc.drawLine(x, y, x+w-1, y);
+ gc.drawLine(x, y, x, y+h-1);
+}
+/*
+ * Return the lowercase of the first non-'&' character following
+ * an '&' character in the given string. If there are no '&'
+ * characters in the given string, return '\0'.
+ */
+char _findMnemonic (String string) {
+ if (string == null) return '\0';
+ int index = 0;
+ int length = string.length ();
+ do {
+ while (index < length && string.charAt (index) != '&') index++;
+ if (++index >= length) return '\0';
+ if (string.charAt (index) != '&') return Character.toLowerCase (string.charAt (index));
+ index++;
+ } while (index < length);
+ return '\0';
+}
+/**
+ * Returns the alignment.
+ * The alignment style (LEFT, CENTER or RIGHT) is returned.
+ *
+ * @return SWT.LEFT, SWT.RIGHT or SWT.CENTER
+ */
+public int getAlignment() {
+ //checkWidget();
+ return align;
+}
+/**
+ * Return the CLabel's image or <code>null</code>.
+ *
+ * @return the image of the label or null
+ */
+public Image getImage() {
+ //checkWidget();
+ return image;
+}
+/**
+ * Compute the minimum size.
+ */
+private Point getTotalSize(Image image, String text) {
+ Point size = new Point(0, 0);
+
+ if (image != null) {
+ Rectangle r = image.getBounds();
+ size.x += r.width;
+ size.y += r.height;
+ }
+
+ GC gc = new GC(this);
+ if (text != null && text.length() > 0) {
+ Point e = gc.textExtent(text, DRAW_FLAGS);
+ size.x += e.x;
+ size.y = Math.max(size.y, e.y);
+ if (image != null) size.x += GAP;
+ } else {
+ size.y = Math.max(size.y, gc.getFontMetrics().getHeight());
+ }
+ gc.dispose();
+
+ return size;
+}
+public int getStyle () {
+ int style = super.getStyle();
+ switch (align) {
+ case SWT.RIGHT: style |= SWT.RIGHT; break;
+ case SWT.CENTER: style |= SWT.CENTER; break;
+ case SWT.LEFT: style |= SWT.LEFT; break;
+ }
+ return style;
+}
+
+/**
+ * Return the Label's text.
+ *
+ * @return the text of the label or null
+ */
+public String getText() {
+ //checkWidget();
+ return text;
+}
+public String getToolTipText () {
+ checkWidget();
+ return appToolTipText;
+}
+private void initAccessible() {
+ Accessible accessible = getAccessible();
+ accessible.addAccessibleListener(new AccessibleAdapter() {
+ public void getName(AccessibleEvent e) {
+ e.result = getText();
+ }
+
+ public void getHelp(AccessibleEvent e) {
+ e.result = getToolTipText();
+ }
+
+ public void getKeyboardShortcut(AccessibleEvent e) {
+ char mnemonic = _findMnemonic(CLabel.this.text);
+ if (mnemonic != '\0') {
+ e.result = "Alt+"+mnemonic; //$NON-NLS-1$
+ }
+ }
+ });
+
+ accessible.addAccessibleControlListener(new AccessibleControlAdapter() {
+ public void getChildAtPoint(AccessibleControlEvent e) {
+ e.childID = ACC.CHILDID_SELF;
+ }
+
+ public void getLocation(AccessibleControlEvent e) {
+ Rectangle rect = getDisplay().map(getParent(), null, getBounds());
+ e.x = rect.x;
+ e.y = rect.y;
+ e.width = rect.width;
+ e.height = rect.height;
+ }
+
+ public void getChildCount(AccessibleControlEvent e) {
+ e.detail = 0;
+ }
+
+ public void getRole(AccessibleControlEvent e) {
+ e.detail = ACC.ROLE_LABEL;
+ }
+
+ public void getState(AccessibleControlEvent e) {
+ e.detail = ACC.STATE_READONLY;
+ }
+ });
+}
+void onDispose(Event event) {
+ removeListener(SWT.Dispose, disposeListener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ gradientColors = null;
+ gradientPercents = null;
+ backgroundImage = null;
+ text = null;
+ image = null;
+ appToolTipText = null;
+}
+void onMnemonic(TraverseEvent event) {
+ char mnemonic = _findMnemonic(text);
+ if (mnemonic == '\0') return;
+ if (Character.toLowerCase(event.character) != mnemonic) return;
+ Composite control = this.getParent();
+ while (control != null) {
+ Control [] children = control.getChildren();
+ int index = 0;
+ while (index < children.length) {
+ if (children [index] == this) break;
+ index++;
+ }
+ index++;
+ if (index < children.length) {
+ if (children [index].setFocus ()) {
+ event.doit = true;
+ event.detail = SWT.TRAVERSE_NONE;
+ }
+ }
+ control = control.getParent();
+ }
+}
+
+void onPaint(PaintEvent event) {
+ Rectangle rect = getClientArea();
+ if (rect.width == 0 || rect.height == 0) return;
+
+ boolean shortenText = false;
+ String t = text;
+ Image img = image;
+ int availableWidth = Math.max(0, rect.width - 2*hIndent);
+ Point extent = getTotalSize(img, t);
+ if (extent.x > availableWidth) {
+ img = null;
+ extent = getTotalSize(img, t);
+ if (extent.x > availableWidth) {
+ shortenText = true;
+ }
+ }
+
+ GC gc = event.gc;
+ String[] lines = text == null ? null : splitString(text);
+
+ // shorten the text
+ if (shortenText) {
+ extent.x = 0;
+ for(int i = 0; i < lines.length; i++) {
+ Point e = gc.textExtent(lines[i], DRAW_FLAGS);
+ if (e.x > availableWidth) {
+ lines[i] = shortenText(gc, lines[i], availableWidth);
+ extent.x = Math.max(extent.x, getTotalSize(null, lines[i]).x);
+ } else {
+ extent.x = Math.max(extent.x, e.x);
+ }
+ }
+ if (appToolTipText == null) {
+ super.setToolTipText(text);
+ }
+ } else {
+ super.setToolTipText(appToolTipText);
+ }
+
+ // determine horizontal position
+ int x = rect.x + hIndent;
+ if (align == SWT.CENTER) {
+ x = (rect.width - extent.x)/2;
+ }
+ if (align == SWT.RIGHT) {
+ x = rect.width - hIndent - extent.x;
+ }
+
+ // draw a background image behind the text
+ try {
+ if (backgroundImage != null) {
+ // draw a background image behind the text
+ Rectangle imageRect = backgroundImage.getBounds();
+ // tile image to fill space
+ gc.setBackground(getBackground());
+ gc.fillRectangle(rect);
+ int xPos = 0;
+ while (xPos < rect.width) {
+ int yPos = 0;
+ while (yPos < rect.height) {
+ gc.drawImage(backgroundImage, xPos, yPos);
+ yPos += imageRect.height;
+ }
+ xPos += imageRect.width;
+ }
+ } else if (gradientColors != null) {
+ // draw a gradient behind the text
+ final Color oldBackground = gc.getBackground();
+ if (gradientColors.length == 1) {
+ if (gradientColors[0] != null) gc.setBackground(gradientColors[0]);
+ gc.fillRectangle(0, 0, rect.width, rect.height);
+ } else {
+ final Color oldForeground = gc.getForeground();
+ Color lastColor = gradientColors[0];
+ if (lastColor == null) lastColor = oldBackground;
+ int pos = 0;
+ for (int i = 0; i < gradientPercents.length; ++i) {
+ gc.setForeground(lastColor);
+ lastColor = gradientColors[i + 1];
+ if (lastColor == null) lastColor = oldBackground;
+ gc.setBackground(lastColor);
+ if (gradientVertical) {
+ final int gradientHeight = (gradientPercents[i] * rect.height / 100) - pos;
+ gc.fillGradientRectangle(0, pos, rect.width, gradientHeight, true);
+ pos += gradientHeight;
+ } else {
+ final int gradientWidth = (gradientPercents[i] * rect.width / 100) - pos;
+ gc.fillGradientRectangle(pos, 0, gradientWidth, rect.height, false);
+ pos += gradientWidth;
+ }
+ }
+ if (gradientVertical && pos < rect.height) {
+ gc.setBackground(getBackground());
+ gc.fillRectangle(0, pos, rect.width, rect.height - pos);
+ }
+ if (!gradientVertical && pos < rect.width) {
+ gc.setBackground(getBackground());
+ gc.fillRectangle(pos, 0, rect.width - pos, rect.height);
+ }
+ gc.setForeground(oldForeground);
+ }
+ gc.setBackground(oldBackground);
+ } else {
+ if (background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) {
+ gc.setBackground(getBackground());
+ gc.fillRectangle(rect);
+ }
+ }
+ } catch (SWTException e) {
+ if ((getStyle() & SWT.DOUBLE_BUFFERED) == 0) {
+ gc.setBackground(getBackground());
+ gc.fillRectangle(rect);
+ }
+ }
+
+ // draw border
+ int style = getStyle();
+ if ((style & SWT.SHADOW_IN) != 0 || (style & SWT.SHADOW_OUT) != 0) {
+ paintBorder(gc, rect);
+ }
+
+ // draw the image
+ if (img != null) {
+ Rectangle imageRect = img.getBounds();
+ gc.drawImage(img, 0, 0, imageRect.width, imageRect.height,
+ x, (rect.height-imageRect.height)/2, imageRect.width, imageRect.height);
+ x += imageRect.width + GAP;
+ extent.x -= imageRect.width + GAP;
+ }
+ // draw the text
+ if (lines != null) {
+ int lineHeight = gc.getFontMetrics().getHeight();
+ int textHeight = lines.length * lineHeight;
+ int lineY = Math.max(vIndent, rect.y + (rect.height - textHeight) / 2);
+ gc.setForeground(getForeground());
+ for (int i = 0; i < lines.length; i++) {
+ int lineX = x;
+ if (lines.length > 1) {
+ if (align == SWT.CENTER) {
+ int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x;
+ lineX = x + Math.max(0, (extent.x - lineWidth) / 2);
+ }
+ if (align == SWT.RIGHT) {
+ int lineWidth = gc.textExtent(lines[i], DRAW_FLAGS).x;
+ lineX = Math.max(x, rect.x + rect.width - hIndent - lineWidth);
+ }
+ }
+ gc.drawText(lines[i], lineX, lineY, DRAW_FLAGS);
+ lineY += lineHeight;
+ }
+ }
+}
+/**
+ * Paint the Label's border.
+ */
+private void paintBorder(GC gc, Rectangle r) {
+ Display disp= getDisplay();
+
+ Color c1 = null;
+ Color c2 = null;
+
+ int style = getStyle();
+ if ((style & SWT.SHADOW_IN) != 0) {
+ c1 = disp.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
+ c2 = disp.getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW);
+ }
+ if ((style & SWT.SHADOW_OUT) != 0) {
+ c1 = disp.getSystemColor(SWT.COLOR_WIDGET_LIGHT_SHADOW);
+ c2 = disp.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
+ }
+
+ if (c1 != null && c2 != null) {
+ gc.setLineWidth(1);
+ drawBevelRect(gc, r.x, r.y, r.width-1, r.height-1, c1, c2);
+ }
+}
+/**
+ * Set the alignment of the CLabel.
+ * Use the values LEFT, CENTER and RIGHT to align image and text within the available space.
+ *
+ * @param align the alignment style of LEFT, RIGHT or CENTER
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the value of align is not one of SWT.LEFT, SWT.RIGHT or SWT.CENTER</li>
+ * </ul>
+ */
+public void setAlignment(int align) {
+ checkWidget();
+ if (align != SWT.LEFT && align != SWT.RIGHT && align != SWT.CENTER) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (this.align != align) {
+ this.align = align;
+ redraw();
+ }
+}
+
+public void setBackground (Color color) {
+ super.setBackground (color);
+ // Are these settings the same as before?
+ if (backgroundImage == null &&
+ gradientColors == null &&
+ gradientPercents == null) {
+ if (color == null) {
+ if (background == null) return;
+ } else {
+ if (color.equals(background)) return;
+ }
+ }
+ background = color;
+ backgroundImage = null;
+ gradientColors = null;
+ gradientPercents = null;
+ redraw ();
+}
+
+/**
+ * Specify a gradient of colours to be drawn in the background of the CLabel.
+ * <p>For example, to draw a gradient that varies from dark blue to blue and then to
+ * white and stays white for the right half of the label, use the following call
+ * to setBackground:</p>
+ * <pre>
+ * clabel.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {25, 50, 100});
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance from left to right; The value <code>null</code>
+ * clears the background gradient; the value <code>null</code> can be used
+ * inside the array of Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width
+ * of the widget at which the color should change; the size of the percents
+ * array must be one less than the size of the colors array.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li>
+ * </ul>
+ */
+public void setBackground(Color[] colors, int[] percents) {
+ setBackground(colors, percents, false);
+}
+/**
+ * Specify a gradient of colours to be drawn in the background of the CLabel.
+ * <p>For example, to draw a gradient that varies from dark blue to white in the vertical,
+ * direction use the following call
+ * to setBackground:</p>
+ * <pre>
+ * clabel.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {100}, true);
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance from left/top to right/bottom; The value <code>null</code>
+ * clears the background gradient; the value <code>null</code> can be used
+ * inside the array of Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width/height
+ * of the widget at which the color should change; the size of the percents
+ * array must be one less than the size of the colors array.
+ * @param vertical indicate the direction of the gradient. True is vertical and false is horizontal.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the values of colors and percents are not consistent</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setBackground(Color[] colors, int[] percents, boolean vertical) {
+ checkWidget();
+ if (colors != null) {
+ if (percents == null || percents.length != colors.length - 1) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (getDisplay().getDepth() < 15) {
+ // Don't use gradients on low color displays
+ colors = new Color[] {colors[colors.length - 1]};
+ percents = new int[] { };
+ }
+ for (int i = 0; i < percents.length; i++) {
+ if (percents[i] < 0 || percents[i] > 100) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (i > 0 && percents[i] < percents[i-1]) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ }
+
+ // Are these settings the same as before?
+ final Color background = getBackground();
+ if (backgroundImage == null) {
+ if ((gradientColors != null) && (colors != null) &&
+ (gradientColors.length == colors.length)) {
+ boolean same = false;
+ for (int i = 0; i < gradientColors.length; i++) {
+ same = (gradientColors[i] == colors[i]) ||
+ ((gradientColors[i] == null) && (colors[i] == background)) ||
+ ((gradientColors[i] == background) && (colors[i] == null));
+ if (!same) break;
+ }
+ if (same) {
+ for (int i = 0; i < gradientPercents.length; i++) {
+ same = gradientPercents[i] == percents[i];
+ if (!same) break;
+ }
+ }
+ if (same && this.gradientVertical == vertical) return;
+ }
+ } else {
+ backgroundImage = null;
+ }
+ // Store the new settings
+ if (colors == null) {
+ gradientColors = null;
+ gradientPercents = null;
+ gradientVertical = false;
+ } else {
+ gradientColors = new Color[colors.length];
+ for (int i = 0; i < colors.length; ++i)
+ gradientColors[i] = (colors[i] != null) ? colors[i] : background;
+ gradientPercents = new int[percents.length];
+ for (int i = 0; i < percents.length; ++i)
+ gradientPercents[i] = percents[i];
+ gradientVertical = vertical;
+ }
+ // Refresh with the new settings
+ redraw();
+}
+/**
+ * Set the image to be drawn in the background of the label.
+ *
+ * @param image the image to be drawn in the background
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBackground(Image image) {
+ checkWidget();
+ if (image == backgroundImage) return;
+ if (image != null) {
+ gradientColors = null;
+ gradientPercents = null;
+ }
+ backgroundImage = image;
+ redraw();
+
+}
+public void setFont(Font font) {
+ super.setFont(font);
+ redraw();
+}
+/**
+ * Set the label's Image.
+ * The value <code>null</code> clears it.
+ *
+ * @param image the image to be displayed in the label or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setImage(Image image) {
+ checkWidget();
+ if (image != this.image) {
+ this.image = image;
+ redraw();
+ }
+}
+/**
+ * Set the label's text.
+ * The value <code>null</code> clears it.
+ * <p>
+ * Mnemonics are indicated by an '&amp;' that causes the next
+ * character to be the mnemonic. When the user presses a
+ * key sequence that matches the mnemonic, focus is assigned
+ * to the control that follows the label. On most platforms,
+ * the mnemonic appears underlined but may be emphasised in a
+ * platform specific manner. The mnemonic indicator character
+ * '&amp;' can be escaped by doubling it in the string, causing
+ * a single '&amp;' to be displayed.
+ * </p>
+ *
+ * @param text the text to be displayed in the label or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setText(String text) {
+ checkWidget();
+ if (text == null) text = ""; //$NON-NLS-1$
+ if (! text.equals(this.text)) {
+ this.text = text;
+ redraw();
+ }
+}
+public void setToolTipText (String string) {
+ super.setToolTipText (string);
+ appToolTipText = super.getToolTipText();
+}
+/**
+ * Shorten the given text <code>t</code> so that its length doesn't exceed
+ * the given width. The default implementation replaces characters in the
+ * center of the original string with an ellipsis ("...").
+ * Override if you need a different strategy.
+ *
+ * @param gc the gc to use for text measurement
+ * @param t the text to shorten
+ * @param width the width to shorten the text to, in pixels
+ * @return the shortened text
+ */
+protected String shortenText(GC gc, String t, int width) {
+ if (t == null) return null;
+ int w = gc.textExtent(ELLIPSIS, DRAW_FLAGS).x;
+ if (width<=w) return t;
+ int l = t.length();
+ int max = l/2;
+ int min = 0;
+ int mid = (max+min)/2 - 1;
+ if (mid <= 0) return t;
+ TextLayout layout = new TextLayout (getDisplay());
+ layout.setText(t);
+ mid = validateOffset(layout, mid);
+ while (min < mid && mid < max) {
+ String s1 = t.substring(0, mid);
+ String s2 = t.substring(validateOffset(layout, l-mid), l);
+ int l1 = gc.textExtent(s1, DRAW_FLAGS).x;
+ int l2 = gc.textExtent(s2, DRAW_FLAGS).x;
+ if (l1+w+l2 > width) {
+ max = mid;
+ mid = validateOffset(layout, (max+min)/2);
+ } else if (l1+w+l2 < width) {
+ min = mid;
+ mid = validateOffset(layout, (max+min)/2);
+ } else {
+ min = max;
+ }
+ }
+ String result = mid == 0 ? t : t.substring(0, mid) + ELLIPSIS + t.substring(validateOffset(layout, l-mid), l);
+ layout.dispose();
+ return result;
+}
+int validateOffset(TextLayout layout, int offset) {
+ int nextOffset = layout.getNextOffset(offset, SWT.MOVEMENT_CLUSTER);
+ if (nextOffset != offset) return layout.getPreviousOffset(nextOffset, SWT.MOVEMENT_CLUSTER);
+ return offset;
+}
+private String[] splitString(String text) {
+ String[] lines = new String[1];
+ int start = 0, pos;
+ do {
+ pos = text.indexOf('\n', start);
+ if (pos == -1) {
+ lines[lines.length - 1] = text.substring(start);
+ } else {
+ boolean crlf = (pos > 0) && (text.charAt(pos - 1) == '\r');
+ lines[lines.length - 1] = text.substring(start, pos - (crlf ? 1 : 0));
+ start = pos + 1;
+ String[] newLines = new String[lines.length+1];
+ System.arraycopy(lines, 0, newLines, 0, lines.length);
+ lines = newLines;
+ }
+ } while (pos != -1);
+ return lines;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLayoutData.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLayoutData.java
new file mode 100644
index 0000000000..7af979e690
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CLayoutData.java
@@ -0,0 +1,45 @@
+/*******************************************************************************
+ * Copyright (c) 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+class CLayoutData {
+
+ int defaultWidth = -1, defaultHeight = -1;
+ int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
+
+Point computeSize (Control control, int wHint, int hHint, boolean flushCache) {
+ if (flushCache) flushCache();
+ if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) {
+ if (defaultWidth == -1 || defaultHeight == -1) {
+ Point size = control.computeSize (wHint, hHint, flushCache);
+ defaultWidth = size.x;
+ defaultHeight = size.y;
+ }
+ return new Point(defaultWidth, defaultHeight);
+ }
+ if (currentWidth == -1 || currentHeight == -1 || wHint != currentWhint || hHint != currentHhint) {
+ Point size = control.computeSize (wHint, hHint, flushCache);
+ currentWhint = wHint;
+ currentHhint = hHint;
+ currentWidth = size.x;
+ currentHeight = size.y;
+ }
+ return new Point(currentWidth, currentHeight);
+}
+void flushCache () {
+ defaultWidth = defaultHeight = -1;
+ currentWidth = currentHeight = -1;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
new file mode 100755
index 0000000000..9d26184c96
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java
@@ -0,0 +1,4031 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.accessibility.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ *
+ * Instances of this class implement the notebook user interface
+ * metaphor. It allows the user to select a notebook page from
+ * set of pages.
+ * <p>
+ * The item children that may be added to instances of this class
+ * must be of type <code>CTabItem</code>.
+ * <code>Control</code> children are created and then set into a
+ * tab item using <code>CTabItem#setControl</code>.
+ * </p><p>
+ * Note that although this class is a subclass of <code>Composite</code>,
+ * it does not make sense to set a layout on it.
+ * </p><p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>CLOSE, TOP, BOTTOM, FLAT, BORDER, SINGLE, MULTI</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Selection</dd>
+ * <dd>"CTabFolder2"</dd>
+ * </dl>
+ * <p>
+ * Note: Only one of the styles TOP and BOTTOM
+ * may be specified.
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#ctabfolder">CTabFolder, CTabItem snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: CustomControlExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+
+public class CTabFolder extends Composite {
+
+ /**
+ * marginWidth specifies the number of pixels of horizontal margin
+ * that will be placed along the left and right edges of the form.
+ *
+ * The default value is 0.
+ */
+ public int marginWidth = 0;
+ /**
+ * marginHeight specifies the number of pixels of vertical margin
+ * that will be placed along the top and bottom edges of the form.
+ *
+ * The default value is 0.
+ */
+ public int marginHeight = 0;
+
+ /**
+ * A multiple of the tab height that specifies the minimum width to which a tab
+ * will be compressed before scrolling arrows are used to navigate the tabs.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should not be capitalized.
+ *
+ * @deprecated This field is no longer used. See setMinimumCharacters(int)
+ */
+ public int MIN_TAB_WIDTH = 4;
+
+ /**
+ * Color of innermost line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated drop shadow border is no longer drawn in 3.0
+ */
+ public static RGB borderInsideRGB = new RGB (132, 130, 132);
+ /**
+ * Color of middle line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated drop shadow border is no longer drawn in 3.0
+ */
+ public static RGB borderMiddleRGB = new RGB (143, 141, 138);
+ /**
+ * Color of outermost line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated drop shadow border is no longer drawn in 3.0
+ */
+ public static RGB borderOutsideRGB = new RGB (171, 168, 165);
+
+ /* sizing, positioning */
+ int xClient, yClient;
+ boolean onBottom = false;
+ boolean single = false;
+ boolean simple = true;
+ int fixedTabHeight = SWT.DEFAULT;
+ int tabHeight;
+ int minChars = 20;
+
+ /* item management */
+ CTabItem items[] = new CTabItem[0];
+ int firstIndex = -1; // index of the left most visible tab.
+ int selectedIndex = -1;
+ int[] priority = new int[0];
+ boolean mru = false;
+ Listener listener;
+ boolean ignoreTraverse;
+
+ /* External Listener management */
+ CTabFolder2Listener[] folderListeners = new CTabFolder2Listener[0];
+ // support for deprecated listener mechanism
+ CTabFolderListener[] tabListeners = new CTabFolderListener[0];
+
+ /* Selected item appearance */
+ Image selectionBgImage;
+ Color[] selectionGradientColors;
+ int[] selectionGradientPercents;
+ boolean selectionGradientVertical;
+ Color selectionForeground;
+ Color selectionBackground; //selection fade end
+ Color selectionFadeStart;
+
+ Color selectionHighlightGradientBegin = null; //null == no highlight
+ //Although we are given new colours all the time to show different states (active, etc),
+ //some of which may have a highlight and some not, we'd like to retain the highlight colours
+ //as a cache so that we can reuse them if we're again told to show the highlight.
+ //We are relying on the fact that only one tab state usually gets a highlight, so only
+ //a single cache is required. If that happens to not be true, cache simply becomes less effective,
+ //but we don't leak colours.
+ Color[] selectionHighlightGradientColorsCache = null; //null is a legal value, check on access
+
+ /* Unselected item appearance */
+ Color[] gradientColors;
+ int[] gradientPercents;
+ boolean gradientVertical;
+ boolean showUnselectedImage = true;
+
+ // close, min/max and chevron buttons
+ Color fillColor;
+ boolean showClose = false;
+ boolean showUnselectedClose = true;
+
+ Rectangle chevronRect = new Rectangle(0, 0, 0, 0);
+ int chevronImageState = NORMAL;
+ boolean showChevron = false;
+ Menu showMenu;
+
+ boolean showMin = false;
+ Rectangle minRect = new Rectangle(0, 0, 0, 0);
+ boolean minimized = false;
+ int minImageState = NORMAL;
+
+ boolean showMax = false;
+ Rectangle maxRect = new Rectangle(0, 0, 0, 0);
+ boolean maximized = false;
+ int maxImageState = NORMAL;
+
+ Control topRight;
+ Rectangle topRightRect = new Rectangle(0, 0, 0, 0);
+ int topRightAlignment = SWT.RIGHT;
+
+ // borders and shapes
+ int borderLeft = 0;
+ int borderRight = 0;
+ int borderTop = 0;
+ int borderBottom = 0;
+
+ int highlight_margin = 0;
+ int highlight_header = 0;
+
+ int[] curve;
+ int[] topCurveHighlightStart;
+ int[] topCurveHighlightEnd;
+ int curveWidth = 0;
+ int curveIndent = 0;
+
+ // when disposing CTabFolder, don't try to layout the items or
+ // change the selection as each child is destroyed.
+ boolean inDispose = false;
+
+ // keep track of size changes in order to redraw only affected area
+ // on Resize
+ Point oldSize;
+ Font oldFont;
+
+ // internal constants
+ static final int DEFAULT_WIDTH = 64;
+ static final int DEFAULT_HEIGHT = 64;
+ static final int BUTTON_SIZE = 18;
+
+ static final int[] TOP_LEFT_CORNER = new int[] {0,6, 1,5, 1,4, 4,1, 5,1, 6,0};
+
+ //TOP_LEFT_CORNER_HILITE is laid out in reverse (ie. top to bottom)
+ //so can fade in same direction as right swoop curve
+ static final int[] TOP_LEFT_CORNER_HILITE = new int[] {5,2, 4,2, 3,3, 2,4, 2,5, 1,6};
+
+ static final int[] TOP_RIGHT_CORNER = new int[] {-6,0, -5,1, -4,1, -1,4, -1,5, 0,6};
+ static final int[] BOTTOM_LEFT_CORNER = new int[] {0,-6, 1,-5, 1,-4, 4,-1, 5,-1, 6,0};
+ static final int[] BOTTOM_RIGHT_CORNER = new int[] {-6,0, -5,-1, -4,-1, -1,-4, -1,-5, 0,-6};
+
+ static final int[] SIMPLE_TOP_LEFT_CORNER = new int[] {0,2, 1,1, 2,0};
+ static final int[] SIMPLE_TOP_RIGHT_CORNER = new int[] {-2,0, -1,1, 0,2};
+ static final int[] SIMPLE_BOTTOM_LEFT_CORNER = new int[] {0,-2, 1,-1, 2,0};
+ static final int[] SIMPLE_BOTTOM_RIGHT_CORNER = new int[] {-2,0, -1,-1, 0,-2};
+ static final int[] SIMPLE_UNSELECTED_INNER_CORNER = new int[] {0,0};
+
+ static final int[] TOP_LEFT_CORNER_BORDERLESS = new int[] {0,6, 1,5, 1,4, 4,1, 5,1, 6,0};
+ static final int[] TOP_RIGHT_CORNER_BORDERLESS = new int[] {-7,0, -6,1, -5,1, -2,4, -2,5, -1,6};
+ static final int[] BOTTOM_LEFT_CORNER_BORDERLESS = new int[] {0,-6, 1,-6, 1,-5, 2,-4, 4,-2, 5,-1, 6,-1, 6,0};
+ static final int[] BOTTOM_RIGHT_CORNER_BORDERLESS = new int[] {-7,0, -7,-1, -6,-1, -5,-2, -3,-4, -2,-5, -2,-6, -1,-6};
+
+ static final int[] SIMPLE_TOP_LEFT_CORNER_BORDERLESS = new int[] {0,2, 1,1, 2,0};
+ static final int[] SIMPLE_TOP_RIGHT_CORNER_BORDERLESS= new int[] {-3,0, -2,1, -1,2};
+ static final int[] SIMPLE_BOTTOM_LEFT_CORNER_BORDERLESS = new int[] {0,-3, 1,-2, 2,-1, 3,0};
+ static final int[] SIMPLE_BOTTOM_RIGHT_CORNER_BORDERLESS = new int[] {-4,0, -3,-1, -2,-2, -1,-3};
+
+ static final int SELECTION_FOREGROUND = SWT.COLOR_LIST_FOREGROUND;
+ static final int SELECTION_BACKGROUND = SWT.COLOR_LIST_BACKGROUND;
+ static final int BORDER1_COLOR = SWT.COLOR_WIDGET_NORMAL_SHADOW;
+ static final int FOREGROUND = SWT.COLOR_WIDGET_FOREGROUND;
+ static final int BACKGROUND = SWT.COLOR_WIDGET_BACKGROUND;
+ static final int BUTTON_BORDER = SWT.COLOR_WIDGET_DARK_SHADOW;
+ static final int BUTTON_FILL = SWT.COLOR_LIST_BACKGROUND;
+
+ static final int NONE = 0;
+ static final int NORMAL = 1;
+ static final int HOT = 2;
+ static final int SELECTED = 3;
+ static final RGB CLOSE_FILL = new RGB(252, 160, 160);
+
+ static final int CHEVRON_CHILD_ID = 0;
+ static final int MINIMIZE_CHILD_ID = 1;
+ static final int MAXIMIZE_CHILD_ID = 2;
+ static final int EXTRA_CHILD_ID_COUNT = 3;
+
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#TOP
+ * @see SWT#BOTTOM
+ * @see SWT#FLAT
+ * @see SWT#BORDER
+ * @see SWT#SINGLE
+ * @see SWT#MULTI
+ * @see #getStyle()
+ */
+public CTabFolder(Composite parent, int style) {
+ super(parent, checkStyle (parent, style));
+ init(style);
+}
+
+void init(int style) {
+ super.setLayout(new CTabFolderLayout());
+ int style2 = super.getStyle();
+ oldFont = getFont();
+ onBottom = (style2 & SWT.BOTTOM) != 0;
+ showClose = (style2 & SWT.CLOSE) != 0;
+// showMin = (style2 & SWT.MIN) != 0; - conflicts with SWT.TOP
+// showMax = (style2 & SWT.MAX) != 0; - conflicts with SWT.BOTTOM
+ single = (style2 & SWT.SINGLE) != 0;
+ borderLeft = borderRight = (style & SWT.BORDER) != 0 ? 1 : 0;
+ borderTop = onBottom ? borderLeft : 0;
+ borderBottom = onBottom ? 0 : borderLeft;
+ highlight_header = (style & SWT.FLAT) != 0 ? 1 : 3;
+ highlight_margin = (style & SWT.FLAT) != 0 ? 0 : 2;
+ //set up default colors
+ Display display = getDisplay();
+ selectionForeground = display.getSystemColor(SELECTION_FOREGROUND);
+ selectionBackground = display.getSystemColor(SELECTION_BACKGROUND);
+ updateTabHeight(false);
+
+ initAccessible();
+
+ // Add all listeners
+ listener = new Listener() {
+ public void handleEvent(Event event) {
+ switch (event.type) {
+ case SWT.Dispose: onDispose(event); break;
+ case SWT.DragDetect: onDragDetect(event); break;
+ case SWT.FocusIn: onFocus(event); break;
+ case SWT.FocusOut: onFocus(event); break;
+ case SWT.KeyDown: onKeyDown(event); break;
+ case SWT.MouseDoubleClick: onMouseDoubleClick(event); break;
+ case SWT.MouseDown: onMouse(event); break;
+ case SWT.MouseEnter: onMouse(event); break;
+ case SWT.MouseExit: onMouse(event); break;
+ case SWT.MouseMove: onMouse(event); break;
+ case SWT.MouseUp: onMouse(event); break;
+ case SWT.Paint: onPaint(event); break;
+ case SWT.Resize: onResize(); break;
+ case SWT.Traverse: onTraverse(event); break;
+ }
+ }
+ };
+
+ int[] folderEvents = new int[]{
+ SWT.Dispose,
+ SWT.DragDetect,
+ SWT.FocusIn,
+ SWT.FocusOut,
+ SWT.KeyDown,
+ SWT.MouseDoubleClick,
+ SWT.MouseDown,
+ SWT.MouseEnter,
+ SWT.MouseExit,
+ SWT.MouseMove,
+ SWT.MouseUp,
+ SWT.Paint,
+ SWT.Resize,
+ SWT.Traverse,
+ };
+ for (int i = 0; i < folderEvents.length; i++) {
+ addListener(folderEvents[i], listener);
+ }
+}
+static int checkStyle (Composite parent, int style) {
+ int mask = SWT.CLOSE | SWT.TOP | SWT.BOTTOM | SWT.FLAT | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT | SWT.SINGLE | SWT.MULTI;
+ style = style & mask;
+ // TOP and BOTTOM are mutually exclusive.
+ // TOP is the default
+ if ((style & SWT.TOP) != 0) style = style & ~SWT.BOTTOM;
+ // SINGLE and MULTI are mutually exclusive.
+ // MULTI is the default
+ if ((style & SWT.MULTI) != 0) style = style & ~SWT.SINGLE;
+ // reduce the flash by not redrawing the entire area on a Resize event
+ style |= SWT.NO_REDRAW_RESIZE;
+ //TEMPORARY CODE
+ /*
+ * The default background on carbon and some GTK themes is not a solid color
+ * but a texture. To show the correct default background, we must allow
+ * the operating system to draw it and therefore, we can not use the
+ * NO_BACKGROUND style. The NO_BACKGROUND style is not required on platforms
+ * that use double buffering which is true in both of these cases.
+ */
+ String platform = SWT.getPlatform();
+ if ("cocoa".equals(platform) || "carbon".equals(platform) || "gtk".equals(platform)) return style; //$NON-NLS-1$ //$NON-NLS-2$
+
+ //TEMPORARY CODE
+ /*
+ * In Right To Left orientation on Windows, all GC calls that use a brush are drawing
+ * offset by one pixel. This results in some parts of the CTabFolder not drawing correctly.
+ * To alleviate some of the appearance problems, allow the OS to draw the background.
+ * This does not draw correctly but the result is less obviously wrong.
+ */
+ if ((style & SWT.RIGHT_TO_LEFT) != 0) return style;
+ if ((parent.getStyle() & SWT.MIRRORED) != 0 && (style & SWT.LEFT_TO_RIGHT) == 0) return style;
+
+ return style | SWT.NO_BACKGROUND;
+}
+static void fillRegion(GC gc, Region region) {
+ // NOTE: region passed in to this function will be modified
+ Region clipping = new Region();
+ gc.getClipping(clipping);
+ region.intersect(clipping);
+ gc.setClipping(region);
+ gc.fillRectangle(region.getBounds());
+ gc.setClipping(clipping);
+ clipping.dispose();
+}
+/**
+ *
+ * Adds the listener to the collection of listeners who will
+ * be notified when a tab item is closed, minimized, maximized,
+ * restored, or to show the list of items that are not
+ * currently visible.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @see CTabFolder2Listener
+ * @see #removeCTabFolder2Listener(CTabFolder2Listener)
+ *
+ * @since 3.0
+ */
+public void addCTabFolder2Listener(CTabFolder2Listener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ // add to array
+ CTabFolder2Listener[] newListeners = new CTabFolder2Listener[folderListeners.length + 1];
+ System.arraycopy(folderListeners, 0, newListeners, 0, folderListeners.length);
+ folderListeners = newListeners;
+ folderListeners[folderListeners.length - 1] = listener;
+}
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when a tab item is closed.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @see CTabFolderListener
+ * @see #removeCTabFolderListener(CTabFolderListener)
+ *
+ * @deprecated use addCTabFolder2Listener(CTabFolder2Listener)
+ */
+public void addCTabFolderListener(CTabFolderListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ // add to array
+ CTabFolderListener[] newTabListeners = new CTabFolderListener[tabListeners.length + 1];
+ System.arraycopy(tabListeners, 0, newTabListeners, 0, tabListeners.length);
+ tabListeners = newTabListeners;
+ tabListeners[tabListeners.length - 1] = listener;
+ // display close button to be backwards compatible
+ if (!showClose) {
+ showClose = true;
+ updateItems();
+ redraw();
+ }
+}
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the user changes the receiver's selection, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * <code>widgetSelected</code> is called when the user changes the selected tab.
+ * <code>widgetDefaultSelected</code> is not called.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's selection
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #removeSelectionListener
+ * @see SelectionEvent
+ */
+public void addSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ TypedListener typedListener = new TypedListener(listener);
+ addListener(SWT.Selection, typedListener);
+ addListener(SWT.DefaultSelection, typedListener);
+}
+void antialias (int[] shape, RGB lineRGB, RGB innerRGB, RGB outerRGB, GC gc){
+ // Don't perform anti-aliasing on Mac and WPF because the platform
+ // already does it. The simple style also does not require anti-aliasing.
+ if (simple) return;
+ String platform = SWT.getPlatform();
+ if ("cocoa".equals(platform)) return; //$NON-NLS-1$
+ if ("carbon".equals(platform)) return; //$NON-NLS-1$
+ if ("wpf".equals(platform)) return; //$NON-NLS-1$
+ // Don't perform anti-aliasing on low resolution displays
+ if (getDisplay().getDepth() < 15) return;
+ if (outerRGB != null) {
+ int index = 0;
+ boolean left = true;
+ int oldY = onBottom ? 0 : getSize().y;
+ int[] outer = new int[shape.length];
+ for (int i = 0; i < shape.length/2; i++) {
+ if (left && (index + 3 < shape.length)) {
+ left = onBottom ? oldY <= shape[index+3] : oldY >= shape[index+3];
+ oldY = shape[index+1];
+ }
+ outer[index] = shape[index++] + (left ? -1 : +1);
+ outer[index] = shape[index++];
+ }
+ RGB from = lineRGB;
+ RGB to = outerRGB;
+ int red = from.red + 2*(to.red - from.red)/3;
+ int green = from.green + 2*(to.green - from.green)/3;
+ int blue = from.blue + 2*(to.blue - from.blue)/3;
+ Color color = new Color(getDisplay(), red, green, blue);
+ gc.setForeground(color);
+ gc.drawPolyline(outer);
+ color.dispose();
+ }
+ if (innerRGB != null) {
+ int[] inner = new int[shape.length];
+ int index = 0;
+ boolean left = true;
+ int oldY = onBottom ? 0 : getSize().y;
+ for (int i = 0; i < shape.length/2; i++) {
+ if (left && (index + 3 < shape.length)) {
+ left = onBottom ? oldY <= shape[index+3] : oldY >= shape[index+3];
+ oldY = shape[index+1];
+ }
+ inner[index] = shape[index++] + (left ? +1 : -1);
+ inner[index] = shape[index++];
+ }
+ RGB from = lineRGB;
+ RGB to = innerRGB;
+ int red = from.red + 2*(to.red - from.red)/3;
+ int green = from.green + 2*(to.green - from.green)/3;
+ int blue = from.blue + 2*(to.blue - from.blue)/3;
+ Color color = new Color(getDisplay(), red, green, blue);
+ gc.setForeground(color);
+ gc.drawPolyline(inner);
+ color.dispose();
+ }
+}
+/*
+* This class was not intended to be subclassed but this restriction
+* cannot be enforced without breaking backward compatibility.
+*/
+//protected void checkSubclass () {
+// String name = getClass ().getName ();
+// int index = name.lastIndexOf ('.');
+// if (!name.substring (0, index + 1).equals ("org.eclipse.swt.custom.")) {
+// SWT.error (SWT.ERROR_INVALID_SUBCLASS);
+// }
+//}
+public Rectangle computeTrim (int x, int y, int width, int height) {
+ checkWidget();
+ int trimX = x - marginWidth - highlight_margin - borderLeft;
+ int trimWidth = width + borderLeft + borderRight + 2*marginWidth + 2*highlight_margin;
+ if (minimized) {
+ int trimY = onBottom ? y - borderTop : y - highlight_header - tabHeight - borderTop;
+ int trimHeight = borderTop + borderBottom + tabHeight + highlight_header;
+ return new Rectangle (trimX, trimY, trimWidth, trimHeight);
+ } else {
+ int trimY = onBottom ? y - marginHeight - highlight_margin - borderTop: y - marginHeight - highlight_header - tabHeight - borderTop;
+ int trimHeight = height + borderTop + borderBottom + 2*marginHeight + tabHeight + highlight_header + highlight_margin;
+ return new Rectangle (trimX, trimY, trimWidth, trimHeight);
+ }
+}
+void createItem (CTabItem item, int index) {
+ if (0 > index || index > getItemCount ())SWT.error (SWT.ERROR_INVALID_RANGE);
+ item.parent = this;
+ CTabItem[] newItems = new CTabItem [items.length + 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ newItems[index] = item;
+ System.arraycopy(items, index, newItems, index + 1, items.length - index);
+ items = newItems;
+ if (selectedIndex >= index) selectedIndex ++;
+ int[] newPriority = new int[priority.length + 1];
+ int next = 0, priorityIndex = priority.length;
+ for (int i = 0; i < priority.length; i++) {
+ if (!mru && priority[i] == index) {
+ priorityIndex = next++;
+ }
+ newPriority[next++] = priority[i] >= index ? priority[i] + 1 : priority[i];
+ }
+ newPriority[priorityIndex] = index;
+ priority = newPriority;
+
+ if (items.length == 1) {
+ if (!updateTabHeight(false)) updateItems();
+ redraw();
+ } else {
+ updateItems();
+ redrawTabs();
+ }
+}
+void destroyItem (CTabItem item) {
+ if (inDispose) return;
+ int index = indexOf(item);
+ if (index == -1) return;
+
+ if (items.length == 1) {
+ items = new CTabItem[0];
+ priority = new int[0];
+ firstIndex = -1;
+ selectedIndex = -1;
+
+ Control control = item.getControl();
+ if (control != null && !control.isDisposed()) {
+ control.setVisible(false);
+ }
+ setToolTipText(null);
+ setButtonBounds();
+ redraw();
+ return;
+ }
+
+ CTabItem[] newItems = new CTabItem [items.length - 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ System.arraycopy(items, index + 1, newItems, index, items.length - index - 1);
+ items = newItems;
+
+ int[] newPriority = new int[priority.length - 1];
+ int next = 0;
+ for (int i = 0; i < priority.length; i++) {
+ if (priority [i] == index) continue;
+ newPriority[next++] = priority[i] > index ? priority[i] - 1 : priority [i];
+ }
+ priority = newPriority;
+
+ // move the selection if this item is selected
+ if (selectedIndex == index) {
+ Control control = item.getControl();
+ selectedIndex = -1;
+ int nextSelection = mru ? priority[0] : Math.max(0, index - 1);
+ setSelection(nextSelection, true);
+ if (control != null && !control.isDisposed()) {
+ control.setVisible(false);
+ }
+ } else if (selectedIndex > index) {
+ selectedIndex --;
+ }
+
+ updateItems();
+ redrawTabs();
+}
+void drawBackground(GC gc, int[] shape, boolean selected) {
+ Color defaultBackground = selected ? selectionBackground : getBackground();
+ Image image = selected ? selectionBgImage : null;
+ Color[] colors = selected ? selectionGradientColors : gradientColors;
+ int[] percents = selected ? selectionGradientPercents : gradientPercents;
+ boolean vertical = selected ? selectionGradientVertical : gradientVertical;
+ Point size = getSize();
+ int width = size.x;
+ int height = tabHeight + highlight_header;
+ int x = 0;
+ if (borderLeft > 0) {
+ x += 1; width -= 2;
+ }
+ int y = onBottom ? size.y - borderBottom - height : borderTop;
+ drawBackground(gc, shape, x, y, width, height, defaultBackground, image, colors, percents, vertical);
+}
+void drawBackground(GC gc, int[] shape, int x, int y, int width, int height, Color defaultBackground, Image image, Color[] colors, int[] percents, boolean vertical) {
+ Region clipping = new Region();
+ gc.getClipping(clipping);
+ Region region = new Region();
+ region.add(shape);
+ region.intersect(clipping);
+ gc.setClipping(region);
+
+ if (image != null) {
+ // draw the background image in shape
+ gc.setBackground(defaultBackground);
+ gc.fillRectangle(x, y, width, height);
+ Rectangle imageRect = image.getBounds();
+ gc.drawImage(image, imageRect.x, imageRect.y, imageRect.width, imageRect.height, x, y, width, height);
+ } else if (colors != null) {
+ // draw gradient
+ if (colors.length == 1) {
+ Color background = colors[0] != null ? colors[0] : defaultBackground;
+ gc.setBackground(background);
+ gc.fillRectangle(x, y, width, height);
+ } else {
+ if (vertical) {
+ if (onBottom) {
+ int pos = 0;
+ if (percents[percents.length - 1] < 100) {
+ pos = (100 - percents[percents.length - 1]) * height / 100;
+ gc.setBackground(defaultBackground);
+ gc.fillRectangle(x, y, width, pos);
+ }
+ Color lastColor = colors[colors.length-1];
+ if (lastColor == null) lastColor = defaultBackground;
+ for (int i = percents.length-1; i >= 0; i--) {
+ gc.setForeground(lastColor);
+ lastColor = colors[i];
+ if (lastColor == null) lastColor = defaultBackground;
+ gc.setBackground(lastColor);
+ int percentage = i > 0 ? percents[i] - percents[i-1] : percents[i];
+ int gradientHeight = percentage * height / 100;
+ gc.fillGradientRectangle(x, y+pos, width, gradientHeight, true);
+ pos += gradientHeight;
+ }
+ } else {
+ Color lastColor = colors[0];
+ if (lastColor == null) lastColor = defaultBackground;
+ int pos = 0;
+ for (int i = 0; i < percents.length; i++) {
+ gc.setForeground(lastColor);
+ lastColor = colors[i + 1];
+ if (lastColor == null) lastColor = defaultBackground;
+ gc.setBackground(lastColor);
+ int percentage = i > 0 ? percents[i] - percents[i-1] : percents[i];
+ int gradientHeight = percentage * height / 100;
+ gc.fillGradientRectangle(x, y+pos, width, gradientHeight, true);
+ pos += gradientHeight;
+ }
+ if (pos < height) {
+ gc.setBackground(defaultBackground);
+ gc.fillRectangle(x, pos, width, height-pos+1);
+ }
+ }
+ } else { //horizontal gradient
+ y = 0;
+ height = getSize().y;
+ Color lastColor = colors[0];
+ if (lastColor == null) lastColor = defaultBackground;
+ int pos = 0;
+ for (int i = 0; i < percents.length; ++i) {
+ gc.setForeground(lastColor);
+ lastColor = colors[i + 1];
+ if (lastColor == null) lastColor = defaultBackground;
+ gc.setBackground(lastColor);
+ int gradientWidth = (percents[i] * width / 100) - pos;
+ gc.fillGradientRectangle(x+pos, y, gradientWidth, height, false);
+ pos += gradientWidth;
+ }
+ if (pos < width) {
+ gc.setBackground(defaultBackground);
+ gc.fillRectangle(x+pos, y, width-pos, height);
+ }
+ }
+ }
+ } else {
+ // draw a solid background using default background in shape
+ if ((getStyle() & SWT.NO_BACKGROUND) != 0 || !defaultBackground.equals(getBackground())) {
+ gc.setBackground(defaultBackground);
+ gc.fillRectangle(x, y, width, height);
+ }
+ }
+ gc.setClipping(clipping);
+ clipping.dispose();
+ region.dispose();
+}
+void drawBody(Event event) {
+ GC gc = event.gc;
+ Point size = getSize();
+
+ // fill in body
+ if (!minimized){
+ int width = size.x - borderLeft - borderRight - 2*highlight_margin;
+ int height = size.y - borderTop - borderBottom - tabHeight - highlight_header - highlight_margin;
+ // Draw highlight margin
+ if (highlight_margin > 0) {
+ int[] shape = null;
+ if (onBottom) {
+ int x1 = borderLeft;
+ int y1 = borderTop;
+ int x2 = size.x - borderRight;
+ int y2 = size.y - borderBottom - tabHeight - highlight_header;
+ shape = new int[] {x1,y1, x2,y1, x2,y2, x2-highlight_margin,y2,
+ x2-highlight_margin, y1+highlight_margin, x1+highlight_margin,y1+highlight_margin,
+ x1+highlight_margin,y2, x1,y2};
+ } else {
+ int x1 = borderLeft;
+ int y1 = borderTop + tabHeight + highlight_header;
+ int x2 = size.x - borderRight;
+ int y2 = size.y - borderBottom;
+ shape = new int[] {x1,y1, x1+highlight_margin,y1, x1+highlight_margin,y2-highlight_margin,
+ x2-highlight_margin,y2-highlight_margin, x2-highlight_margin,y1,
+ x2,y1, x2,y2, x1,y2};
+ }
+ // If horizontal gradient, show gradient across the whole area
+ if (selectedIndex != -1 && selectionGradientColors != null && selectionGradientColors.length > 1 && !selectionGradientVertical) {
+ drawBackground(gc, shape, true);
+ } else if (selectedIndex == -1 && gradientColors != null && gradientColors.length > 1 && !gradientVertical) {
+ drawBackground(gc, shape, false);
+ } else {
+ gc.setBackground(selectedIndex == -1 ? getBackground() : selectionBackground);
+ gc.fillPolygon(shape);
+ }
+ }
+ //Draw client area
+ if ((getStyle() & SWT.NO_BACKGROUND) != 0) {
+ gc.setBackground(getBackground());
+ gc.fillRectangle(xClient - marginWidth, yClient - marginHeight, width, height);
+ }
+ } else {
+ if ((getStyle() & SWT.NO_BACKGROUND) != 0) {
+ int height = borderTop + tabHeight + highlight_header + borderBottom;
+ if (size.y > height) {
+ gc.setBackground(getParent().getBackground());
+ gc.fillRectangle(0, height, size.x, size.y - height);
+ }
+ }
+ }
+
+ //draw 1 pixel border around outside
+ if (borderLeft > 0) {
+ gc.setForeground(getDisplay().getSystemColor(BORDER1_COLOR));
+ int x1 = borderLeft - 1;
+ int x2 = size.x - borderRight;
+ int y1 = onBottom ? borderTop - 1 : borderTop + tabHeight;
+ int y2 = onBottom ? size.y - tabHeight - borderBottom - 1 : size.y - borderBottom;
+ gc.drawLine(x1, y1, x1, y2); // left
+ gc.drawLine(x2, y1, x2, y2); // right
+ if (onBottom) {
+ gc.drawLine(x1, y1, x2, y1); // top
+ } else {
+ gc.drawLine(x1, y2, x2, y2); // bottom
+ }
+ }
+}
+
+void drawChevron(GC gc) {
+ if (chevronRect.width == 0 || chevronRect.height == 0) return;
+ // draw chevron (10x7)
+ Display display = getDisplay();
+ Point dpi = display.getDPI();
+ int fontHeight = 72 * 10 / dpi.y;
+ FontData fd = getFont().getFontData()[0];
+ fd.setHeight(fontHeight);
+ Font f = new Font(display, fd);
+ int fHeight = f.getFontData()[0].getHeight() * dpi.y / 72;
+ int indent = Math.max(2, (chevronRect.height - fHeight - 4) /2);
+ int x = chevronRect.x + 2;
+ int y = chevronRect.y + indent;
+ int count;
+ if (single) {
+ count = selectedIndex == -1 ? items.length : items.length - 1;
+ } else {
+ int showCount = 0;
+ while (showCount < priority.length && items[priority[showCount]].showing) {
+ showCount++;
+ }
+ count = items.length - showCount;
+ }
+ String chevronString = count > 99 ? "99+" : String.valueOf(count); //$NON-NLS-1$
+ switch (chevronImageState) {
+ case NORMAL: {
+ Color chevronBorder = single ? getSelectionForeground() : getForeground();
+ gc.setForeground(chevronBorder);
+ gc.setFont(f);
+ gc.drawLine(x,y, x+2,y+2);
+ gc.drawLine(x+2,y+2, x,y+4);
+ gc.drawLine(x+1,y, x+3,y+2);
+ gc.drawLine(x+3,y+2, x+1,y+4);
+ gc.drawLine(x+4,y, x+6,y+2);
+ gc.drawLine(x+6,y+2, x+5,y+4);
+ gc.drawLine(x+5,y, x+7,y+2);
+ gc.drawLine(x+7,y+2, x+4,y+4);
+ gc.drawString(chevronString, x+7, y+3, true);
+ break;
+ }
+ case HOT: {
+ gc.setForeground(display.getSystemColor(BUTTON_BORDER));
+ gc.setBackground(display.getSystemColor(BUTTON_FILL));
+ gc.setFont(f);
+ gc.fillRoundRectangle(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, 6, 6);
+ gc.drawRoundRectangle(chevronRect.x, chevronRect.y, chevronRect.width - 1, chevronRect.height - 1, 6, 6);
+ gc.drawLine(x,y, x+2,y+2);
+ gc.drawLine(x+2,y+2, x,y+4);
+ gc.drawLine(x+1,y, x+3,y+2);
+ gc.drawLine(x+3,y+2, x+1,y+4);
+ gc.drawLine(x+4,y, x+6,y+2);
+ gc.drawLine(x+6,y+2, x+5,y+4);
+ gc.drawLine(x+5,y, x+7,y+2);
+ gc.drawLine(x+7,y+2, x+4,y+4);
+ gc.drawString(chevronString, x+7, y+3, true);
+ break;
+ }
+ case SELECTED: {
+ gc.setForeground(display.getSystemColor(BUTTON_BORDER));
+ gc.setBackground(display.getSystemColor(BUTTON_FILL));
+ gc.setFont(f);
+ gc.fillRoundRectangle(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, 6, 6);
+ gc.drawRoundRectangle(chevronRect.x, chevronRect.y, chevronRect.width - 1, chevronRect.height - 1, 6, 6);
+ gc.drawLine(x+1,y+1, x+3,y+3);
+ gc.drawLine(x+3,y+3, x+1,y+5);
+ gc.drawLine(x+2,y+1, x+4,y+3);
+ gc.drawLine(x+4,y+3, x+2,y+5);
+ gc.drawLine(x+5,y+1, x+7,y+3);
+ gc.drawLine(x+7,y+3, x+6,y+5);
+ gc.drawLine(x+6,y+1, x+8,y+3);
+ gc.drawLine(x+8,y+3, x+5,y+5);
+ gc.drawString(chevronString, x+8, y+4, true);
+ break;
+ }
+ }
+ f.dispose();
+}
+void drawMaximize(GC gc) {
+ if (maxRect.width == 0 || maxRect.height == 0) return;
+ Display display = getDisplay();
+ // 5x4 or 7x9
+ int x = maxRect.x + (CTabFolder.BUTTON_SIZE - 10)/2;
+ int y = maxRect.y + 3;
+
+ gc.setForeground(display.getSystemColor(BUTTON_BORDER));
+ gc.setBackground(display.getSystemColor(BUTTON_FILL));
+
+ switch (maxImageState) {
+ case NORMAL: {
+ if (!maximized) {
+ gc.fillRectangle(x, y, 9, 9);
+ gc.drawRectangle(x, y, 9, 9);
+ gc.drawLine(x+1, y+2, x+8, y+2);
+ } else {
+ gc.fillRectangle(x, y+3, 5, 4);
+ gc.fillRectangle(x+2, y, 5, 4);
+ gc.drawRectangle(x, y+3, 5, 4);
+ gc.drawRectangle(x+2, y, 5, 4);
+ gc.drawLine(x+3, y+1, x+6, y+1);
+ gc.drawLine(x+1, y+4, x+4, y+4);
+ }
+ break;
+ }
+ case HOT: {
+ gc.fillRoundRectangle(maxRect.x, maxRect.y, maxRect.width, maxRect.height, 6, 6);
+ gc.drawRoundRectangle(maxRect.x, maxRect.y, maxRect.width - 1, maxRect.height - 1, 6, 6);
+ if (!maximized) {
+ gc.fillRectangle(x, y, 9, 9);
+ gc.drawRectangle(x, y, 9, 9);
+ gc.drawLine(x+1, y+2, x+8, y+2);
+ } else {
+ gc.fillRectangle(x, y+3, 5, 4);
+ gc.fillRectangle(x+2, y, 5, 4);
+ gc.drawRectangle(x, y+3, 5, 4);
+ gc.drawRectangle(x+2, y, 5, 4);
+ gc.drawLine(x+3, y+1, x+6, y+1);
+ gc.drawLine(x+1, y+4, x+4, y+4);
+ }
+ break;
+ }
+ case SELECTED: {
+ gc.fillRoundRectangle(maxRect.x, maxRect.y, maxRect.width, maxRect.height, 6, 6);
+ gc.drawRoundRectangle(maxRect.x, maxRect.y, maxRect.width - 1, maxRect.height - 1, 6, 6);
+ if (!maximized) {
+ gc.fillRectangle(x+1, y+1, 9, 9);
+ gc.drawRectangle(x+1, y+1, 9, 9);
+ gc.drawLine(x+2, y+3, x+9, y+3);
+ } else {
+ gc.fillRectangle(x+1, y+4, 5, 4);
+ gc.fillRectangle(x+3, y+1, 5, 4);
+ gc.drawRectangle(x+1, y+4, 5, 4);
+ gc.drawRectangle(x+3, y+1, 5, 4);
+ gc.drawLine(x+4, y+2, x+7, y+2);
+ gc.drawLine(x+2, y+5, x+5, y+5);
+ }
+ break;
+ }
+ }
+}
+void drawMinimize(GC gc) {
+ if (minRect.width == 0 || minRect.height == 0) return;
+ Display display = getDisplay();
+ // 5x4 or 9x3
+ int x = minRect.x + (BUTTON_SIZE - 10)/2;
+ int y = minRect.y + 3;
+
+ gc.setForeground(display.getSystemColor(BUTTON_BORDER));
+ gc.setBackground(display.getSystemColor(BUTTON_FILL));
+
+ switch (minImageState) {
+ case NORMAL: {
+ if (!minimized) {
+ gc.fillRectangle(x, y, 9, 3);
+ gc.drawRectangle(x, y, 9, 3);
+ } else {
+ gc.fillRectangle(x, y+3, 5, 4);
+ gc.fillRectangle(x+2, y, 5, 4);
+ gc.drawRectangle(x, y+3, 5, 4);
+ gc.drawRectangle(x+2, y, 5, 4);
+ gc.drawLine(x+3, y+1, x+6, y+1);
+ gc.drawLine(x+1, y+4, x+4, y+4);
+ }
+ break;
+ }
+ case HOT: {
+ gc.fillRoundRectangle(minRect.x, minRect.y, minRect.width, minRect.height, 6, 6);
+ gc.drawRoundRectangle(minRect.x, minRect.y, minRect.width - 1, minRect.height - 1, 6, 6);
+ if (!minimized) {
+ gc.fillRectangle(x, y, 9, 3);
+ gc.drawRectangle(x, y, 9, 3);
+ } else {
+ gc.fillRectangle(x, y+3, 5, 4);
+ gc.fillRectangle(x+2, y, 5, 4);
+ gc.drawRectangle(x, y+3, 5, 4);
+ gc.drawRectangle(x+2, y, 5, 4);
+ gc.drawLine(x+3, y+1, x+6, y+1);
+ gc.drawLine(x+1, y+4, x+4, y+4);
+ }
+ break;
+ }
+ case SELECTED: {
+ gc.fillRoundRectangle(minRect.x, minRect.y, minRect.width, minRect.height, 6, 6);
+ gc.drawRoundRectangle(minRect.x, minRect.y, minRect.width - 1, minRect.height - 1, 6, 6);
+ if (!minimized) {
+ gc.fillRectangle(x+1, y+1, 9, 3);
+ gc.drawRectangle(x+1, y+1, 9, 3);
+ } else {
+ gc.fillRectangle(x+1, y+4, 5, 4);
+ gc.fillRectangle(x+3, y+1, 5, 4);
+ gc.drawRectangle(x+1, y+4, 5, 4);
+ gc.drawRectangle(x+3, y+1, 5, 4);
+ gc.drawLine(x+4, y+2, x+7, y+2);
+ gc.drawLine(x+2, y+5, x+5, y+5);
+ }
+ break;
+ }
+ }
+}
+void drawTabArea(Event event) {
+ GC gc = event.gc;
+ Point size = getSize();
+ int[] shape = null;
+ Color borderColor = getDisplay().getSystemColor(BORDER1_COLOR);
+
+ if (tabHeight == 0) {
+ int style = getStyle();
+ if ((style & SWT.FLAT) != 0 && (style & SWT.BORDER) == 0) return;
+ int x1 = borderLeft - 1;
+ int x2 = size.x - borderRight;
+ int y1 = onBottom ? size.y - borderBottom - highlight_header - 1 : borderTop + highlight_header;
+ int y2 = onBottom ? size.y - borderBottom : borderTop;
+ if (borderLeft > 0 && onBottom) y2 -= 1;
+
+ shape = new int[] {x1, y1, x1,y2, x2,y2, x2,y1};
+
+ // If horizontal gradient, show gradient across the whole area
+ if (selectedIndex != -1 && selectionGradientColors != null && selectionGradientColors.length > 1 && !selectionGradientVertical) {
+ drawBackground(gc, shape, true);
+ } else if (selectedIndex == -1 && gradientColors != null && gradientColors.length > 1 && !gradientVertical) {
+ drawBackground(gc, shape, false);
+ } else {
+ gc.setBackground(selectedIndex == -1 ? getBackground() : selectionBackground);
+ gc.fillPolygon(shape);
+ }
+
+ //draw 1 pixel border
+ if (borderLeft > 0) {
+ gc.setForeground(borderColor);
+ gc.drawPolyline(shape);
+ }
+ return;
+ }
+
+ int x = Math.max(0, borderLeft - 1);
+ int y = onBottom ? size.y - borderBottom - tabHeight : borderTop;
+ int width = size.x - borderLeft - borderRight + 1;
+ int height = tabHeight - 1;
+
+ // Draw Tab Header
+ if (onBottom) {
+ int[] left, right;
+ if ((getStyle() & SWT.BORDER) != 0) {
+ left = simple ? SIMPLE_BOTTOM_LEFT_CORNER : BOTTOM_LEFT_CORNER;
+ right = simple ? SIMPLE_BOTTOM_RIGHT_CORNER : BOTTOM_RIGHT_CORNER;
+ } else {
+ left = simple ? SIMPLE_BOTTOM_LEFT_CORNER_BORDERLESS : BOTTOM_LEFT_CORNER_BORDERLESS;
+ right = simple ? SIMPLE_BOTTOM_RIGHT_CORNER_BORDERLESS : BOTTOM_RIGHT_CORNER_BORDERLESS;
+ }
+ shape = new int[left.length + right.length + 4];
+ int index = 0;
+ shape[index++] = x;
+ shape[index++] = y-highlight_header;
+ for (int i = 0; i < left.length/2; i++) {
+ shape[index++] = x+left[2*i];
+ shape[index++] = y+height+left[2*i+1];
+ if (borderLeft == 0) shape[index-1] += 1;
+ }
+ for (int i = 0; i < right.length/2; i++) {
+ shape[index++] = x+width+right[2*i];
+ shape[index++] = y+height+right[2*i+1];
+ if (borderLeft == 0) shape[index-1] += 1;
+ }
+ shape[index++] = x+width;
+ shape[index++] = y-highlight_header;
+ } else {
+ int[] left, right;
+ if ((getStyle() & SWT.BORDER) != 0) {
+ left = simple ? SIMPLE_TOP_LEFT_CORNER : TOP_LEFT_CORNER;
+ right = simple ? SIMPLE_TOP_RIGHT_CORNER : TOP_RIGHT_CORNER;
+ } else {
+ left = simple ? SIMPLE_TOP_LEFT_CORNER_BORDERLESS : TOP_LEFT_CORNER_BORDERLESS;
+ right = simple ? SIMPLE_TOP_RIGHT_CORNER_BORDERLESS : TOP_RIGHT_CORNER_BORDERLESS;
+ }
+ shape = new int[left.length + right.length + 4];
+ int index = 0;
+ shape[index++] = x;
+ shape[index++] = y+height+highlight_header + 1;
+ for (int i = 0; i < left.length/2; i++) {
+ shape[index++] = x+left[2*i];
+ shape[index++] = y+left[2*i+1];
+ }
+ for (int i = 0; i < right.length/2; i++) {
+ shape[index++] = x+width+right[2*i];
+ shape[index++] = y+right[2*i+1];
+ }
+ shape[index++] = x+width;
+ shape[index++] = y+height+highlight_header + 1;
+ }
+ // Fill in background
+ boolean bkSelected = single && selectedIndex != -1;
+ drawBackground(gc, shape, bkSelected);
+ // Fill in parent background for non-rectangular shape
+ Region r = new Region();
+ r.add(new Rectangle(x, y, width + 1, height + 1));
+ r.subtract(shape);
+ gc.setBackground(getParent().getBackground());
+ fillRegion(gc, r);
+ r.dispose();
+
+ // Draw the unselected tabs.
+ if (!single) {
+ for (int i=0; i < items.length; i++) {
+ if (i != selectedIndex && event.getBounds().intersects(items[i].getBounds())) {
+ items[i].onPaint(gc, false);
+ }
+ }
+ }
+
+ // Draw selected tab
+ if (selectedIndex != -1) {
+ CTabItem item = items[selectedIndex];
+ item.onPaint(gc, true);
+ } else {
+ // if no selected tab - draw line across bottom of all tabs
+ int x1 = borderLeft;
+ int y1 = (onBottom) ? size.y - borderBottom - tabHeight - 1 : borderTop + tabHeight;
+ int x2 = size.x - borderRight;
+ gc.setForeground(borderColor);
+ gc.drawLine(x1, y1, x2, y1);
+ }
+
+ // Draw Buttons
+ drawChevron(gc);
+ drawMinimize(gc);
+ drawMaximize(gc);
+
+ // Draw border line
+ if (borderLeft > 0) {
+ RGB outside = getParent().getBackground().getRGB();
+ antialias(shape, borderColor.getRGB(), null, outside, gc);
+ gc.setForeground(borderColor);
+ gc.drawPolyline(shape);
+ }
+}
+/**
+ * Returns <code>true</code> if the receiver's border is visible.
+ *
+ * @return the receiver's border visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getBorderVisible() {
+ checkWidget();
+ return borderLeft == 1;
+}
+public Rectangle getClientArea() {
+ checkWidget();
+ if (minimized) return new Rectangle(xClient, yClient, 0, 0);
+ Point size = getSize();
+ int width = size.x - borderLeft - borderRight - 2*marginWidth - 2*highlight_margin;
+ int height = size.y - borderTop - borderBottom - 2*marginHeight - highlight_margin - highlight_header;
+ height -= tabHeight;
+ return new Rectangle(xClient, yClient, width, height);
+}
+Color getFillColor() {
+ if (fillColor == null) {
+ fillColor = new Color(getDisplay(), CTabFolder.CLOSE_FILL);
+ }
+ return fillColor;
+}
+/**
+ * Return the tab that is located at the specified index.
+ *
+ * @param index the index of the tab item
+ * @return the item at the specified index
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is out of range</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public CTabItem getItem (int index) {
+ //checkWidget();
+ if (index < 0 || index >= items.length)
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ return items [index];
+}
+/**
+ * Gets the item at a point in the widget.
+ *
+ * @param pt the point in coordinates relative to the CTabFolder
+ * @return the item at a point or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public CTabItem getItem (Point pt) {
+ //checkWidget();
+ if (items.length == 0) return null;
+ Point size = getSize();
+ if (size.x <= borderLeft + borderRight) return null;
+ if (showChevron && chevronRect.contains(pt)) return null;
+ for (int i = 0; i < priority.length; i++) {
+ CTabItem item = items[priority[i]];
+ Rectangle rect = item.getBounds();
+ if (rect.contains(pt)) return item;
+ }
+ return null;
+}
+/**
+ * Return the number of tabs in the folder.
+ *
+ * @return the number of tabs in the folder
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int getItemCount(){
+ //checkWidget();
+ return items.length;
+}
+/**
+ * Return the tab items.
+ *
+ * @return the tab items
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public CTabItem [] getItems() {
+ //checkWidget();
+ CTabItem[] tabItems = new CTabItem [items.length];
+ System.arraycopy(items, 0, tabItems, 0, items.length);
+ return tabItems;
+}
+/*
+ * Return the lowercase of the first non-'&' character following
+ * an '&' character in the given string. If there are no '&'
+ * characters in the given string, return '\0'.
+ */
+char _findMnemonic (String string) {
+ if (string == null) return '\0';
+ int index = 0;
+ int length = string.length ();
+ do {
+ while (index < length && string.charAt (index) != '&') index++;
+ if (++index >= length) return '\0';
+ if (string.charAt (index) != '&') return Character.toLowerCase (string.charAt (index));
+ index++;
+ } while (index < length);
+ return '\0';
+}
+String stripMnemonic (String string) {
+ int index = 0;
+ int length = string.length ();
+ do {
+ while ((index < length) && (string.charAt (index) != '&')) index++;
+ if (++index >= length) return string;
+ if (string.charAt (index) != '&') {
+ return string.substring(0, index-1) + string.substring(index, length);
+ }
+ index++;
+ } while (index < length);
+ return string;
+}
+/**
+ * Returns <code>true</code> if the receiver is minimized.
+ *
+ * @return the receiver's minimized state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getMinimized() {
+ checkWidget();
+ return minimized;
+}
+/**
+ * Returns <code>true</code> if the minimize button
+ * is visible.
+ *
+ * @return the visibility of the minimized button
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getMinimizeVisible() {
+ checkWidget();
+ return showMin;
+}
+/**
+ * Returns the number of characters that will
+ * appear in a fully compressed tab.
+ *
+ * @return number of characters that will appear in a fully compressed tab
+ *
+ * @since 3.0
+ */
+public int getMinimumCharacters() {
+ checkWidget();
+ return minChars;
+}
+/**
+ * Returns <code>true</code> if the receiver is maximized.
+ * <p>
+ *
+ * @return the receiver's maximized state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getMaximized() {
+ checkWidget();
+ return maximized;
+}
+/**
+ * Returns <code>true</code> if the maximize button
+ * is visible.
+ *
+ * @return the visibility of the maximized button
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public boolean getMaximizeVisible() {
+ checkWidget();
+ return showMax;
+}
+/**
+ * Returns <code>true</code> if the receiver displays most
+ * recently used tabs and <code>false</code> otherwise.
+ * <p>
+ * When there is not enough horizontal space to show all the tabs,
+ * by default, tabs are shown sequentially from left to right in
+ * order of their index. When the MRU visibility is turned on,
+ * the tabs that are visible will be the tabs most recently selected.
+ * Tabs will still maintain their left to right order based on index
+ * but only the most recently selected tabs are visible.
+ * <p>
+ * For example, consider a CTabFolder that contains "Tab 1", "Tab 2",
+ * "Tab 3" and "Tab 4" (in order by index). The user selects
+ * "Tab 1" and then "Tab 3". If the CTabFolder is now
+ * compressed so that only two tabs are visible, by default,
+ * "Tab 2" and "Tab 3" will be shown ("Tab 3" since it is currently
+ * selected and "Tab 2" because it is the previous item in index order).
+ * If MRU visibility is enabled, the two visible tabs will be "Tab 1"
+ * and "Tab 3" (in that order from left to right).</p>
+ *
+ * @return the receiver's header's visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public boolean getMRUVisible() {
+ checkWidget();
+ return mru;
+}
+int getRightItemEdge (){
+ int x = getSize().x - borderRight - 3;
+ if (showMin) x -= BUTTON_SIZE;
+ if (showMax) x -= BUTTON_SIZE;
+ if (showChevron) x -= 3*BUTTON_SIZE/2;
+ if (topRight != null && topRightAlignment != SWT.FILL) {
+ Point rightSize = topRight.computeSize(SWT.DEFAULT, SWT.DEFAULT);
+ x -= rightSize.x + 3;
+ }
+ return Math.max(0, x);
+}
+/**
+ * Return the selected tab item, or null if there is no selection.
+ *
+ * @return the selected tab item, or null if none has been selected
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public CTabItem getSelection() {
+ //checkWidget();
+ if (selectedIndex == -1) return null;
+ return items[selectedIndex];
+}
+/**
+ * Returns the receiver's selection background color.
+ *
+ * @return the selection background color of the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public Color getSelectionBackground() {
+ checkWidget();
+ return selectionBackground;
+}
+/**
+ * Returns the receiver's selection foreground color.
+ *
+ * @return the selection foreground color of the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public Color getSelectionForeground() {
+ checkWidget();
+ return selectionForeground;
+}
+/**
+ * Return the index of the selected tab item, or -1 if there
+ * is no selection.
+ *
+ * @return the index of the selected tab item or -1
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int getSelectionIndex() {
+ //checkWidget();
+ return selectedIndex;
+}
+/**
+ * Returns <code>true</code> if the CTabFolder is rendered
+ * with a simple, traditional shape.
+ *
+ * @return <code>true</code> if the CTabFolder is rendered with a simple shape
+ *
+ * @since 3.0
+ */
+public boolean getSimple() {
+ checkWidget();
+ return simple;
+}
+/**
+ * Returns <code>true</code> if the CTabFolder only displays the selected tab
+ * and <code>false</code> if the CTabFolder displays multiple tabs.
+ *
+ * @return <code>true</code> if the CTabFolder only displays the selected tab and <code>false</code> if the CTabFolder displays multiple tabs
+ *
+ * @since 3.0
+ */
+public boolean getSingle() {
+ checkWidget();
+ return single;
+}
+
+public int getStyle() {
+ int style = super.getStyle();
+ style &= ~(SWT.TOP | SWT.BOTTOM);
+ style |= onBottom ? SWT.BOTTOM : SWT.TOP;
+ style &= ~(SWT.SINGLE | SWT.MULTI);
+ style |= single ? SWT.SINGLE : SWT.MULTI;
+ if (borderLeft != 0) style |= SWT.BORDER;
+ style &= ~SWT.CLOSE;
+ if (showClose) style |= SWT.CLOSE;
+ return style;
+}
+/**
+ * Returns the height of the tab
+ *
+ * @return the height of the tab
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int getTabHeight(){
+ checkWidget();
+ if (fixedTabHeight != SWT.DEFAULT) return fixedTabHeight;
+ return tabHeight - 1; // -1 for line drawn across top of tab
+}
+/**
+ * Returns the position of the tab. Possible values are SWT.TOP or SWT.BOTTOM.
+ *
+ * @return the position of the tab
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int getTabPosition(){
+ checkWidget();
+ return onBottom ? SWT.BOTTOM : SWT.TOP;
+}
+/**
+ * Returns the control in the top right corner of the tab folder.
+ * Typically this is a close button or a composite with a menu and close button.
+ *
+ * @return the control in the top right corner of the tab folder or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public Control getTopRight() {
+ checkWidget();
+ return topRight;
+}
+/**
+ * Returns <code>true</code> if the close button appears
+ * when the user hovers over an unselected tabs.
+ *
+ * @return <code>true</code> if the close button appears on unselected tabs
+ *
+ * @since 3.0
+ */
+public boolean getUnselectedCloseVisible() {
+ checkWidget();
+ return showUnselectedClose;
+}
+/**
+ * Returns <code>true</code> if an image appears
+ * in unselected tabs.
+ *
+ * @return <code>true</code> if an image appears in unselected tabs
+ *
+ * @since 3.0
+ */
+public boolean getUnselectedImageVisible() {
+ checkWidget();
+ return showUnselectedImage;
+}
+/**
+ * Return the index of the specified tab or -1 if the tab is not
+ * in the receiver.
+ *
+ * @param item the tab item for which the index is required
+ *
+ * @return the index of the specified tab item or -1
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int indexOf(CTabItem item) {
+ checkWidget();
+ if (item == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ for (int i = 0; i < items.length; i++) {
+ if (items[i] == item) return i;
+ }
+ return -1;
+}
+void initAccessible() {
+ final Accessible accessible = getAccessible();
+ accessible.addAccessibleListener(new AccessibleAdapter() {
+ public void getName(AccessibleEvent e) {
+ String name = null;
+ int childID = e.childID;
+ if (childID >= 0 && childID < items.length) {
+ name = stripMnemonic(items[childID].getText());
+ } else if (childID == items.length + CHEVRON_CHILD_ID) {
+ name = SWT.getMessage("SWT_ShowList"); //$NON-NLS-1$
+ } else if (childID == items.length + MINIMIZE_CHILD_ID) {
+ name = minimized ? SWT.getMessage("SWT_Restore") : SWT.getMessage("SWT_Minimize"); //$NON-NLS-1$ //$NON-NLS-2$
+ } else if (childID == items.length + MAXIMIZE_CHILD_ID) {
+ name = maximized ? SWT.getMessage("SWT_Restore") : SWT.getMessage("SWT_Maximize"); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ e.result = name;
+ }
+
+ public void getHelp(AccessibleEvent e) {
+ String help = null;
+ int childID = e.childID;
+ if (childID == ACC.CHILDID_SELF) {
+ help = getToolTipText();
+ } else if (childID >= 0 && childID < items.length) {
+ help = items[childID].getToolTipText();
+ }
+ e.result = help;
+ }
+
+ public void getKeyboardShortcut(AccessibleEvent e) {
+ String shortcut = null;
+ int childID = e.childID;
+ if (childID >= 0 && childID < items.length) {
+ String text = items[childID].getText();
+ if (text != null) {
+ char mnemonic = _findMnemonic(text);
+ if (mnemonic != '\0') {
+ shortcut = "Alt+"+mnemonic; //$NON-NLS-1$
+ }
+ }
+ }
+ e.result = shortcut;
+ }
+ });
+
+ accessible.addAccessibleControlListener(new AccessibleControlAdapter() {
+ public void getChildAtPoint(AccessibleControlEvent e) {
+ Point testPoint = toControl(e.x, e.y);
+ int childID = ACC.CHILDID_NONE;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].getBounds().contains(testPoint)) {
+ childID = i;
+ break;
+ }
+ }
+ if (childID == ACC.CHILDID_NONE) {
+ if (showChevron && chevronRect.contains(testPoint)) {
+ childID = items.length + CHEVRON_CHILD_ID;
+ } else if (showMin && minRect.contains(testPoint)) {
+ childID = items.length + MINIMIZE_CHILD_ID;
+ } else if (showMax && maxRect.contains(testPoint)) {
+ childID = items.length + MAXIMIZE_CHILD_ID;
+ } else {
+ Rectangle location = getBounds();
+ location.height = location.height - getClientArea().height;
+ if (location.contains(testPoint)) {
+ childID = ACC.CHILDID_SELF;
+ }
+ }
+ }
+ e.childID = childID;
+ }
+
+ public void getLocation(AccessibleControlEvent e) {
+ Rectangle location = null;
+ Point pt = null;
+ int childID = e.childID;
+ if (childID == ACC.CHILDID_SELF) {
+ location = getBounds();
+ pt = getParent().toDisplay(location.x, location.y);
+ } else {
+ if (childID >= 0 && childID < items.length && items[childID].isShowing()) {
+ location = items[childID].getBounds();
+ } else if (showChevron && childID == items.length + CHEVRON_CHILD_ID) {
+ location = chevronRect;
+ } else if (showMin && childID == items.length + MINIMIZE_CHILD_ID) {
+ location = minRect;
+ } else if (showMax && childID == items.length + MAXIMIZE_CHILD_ID) {
+ location = maxRect;
+ }
+ if (location != null) {
+ pt = toDisplay(location.x, location.y);
+ }
+ }
+ if (location != null && pt != null) {
+ e.x = pt.x;
+ e.y = pt.y;
+ e.width = location.width;
+ e.height = location.height;
+ }
+ }
+
+ public void getChildCount(AccessibleControlEvent e) {
+ e.detail = items.length + EXTRA_CHILD_ID_COUNT;
+ }
+
+ public void getDefaultAction(AccessibleControlEvent e) {
+ String action = null;
+ int childID = e.childID;
+ if (childID >= 0 && childID < items.length) {
+ action = SWT.getMessage ("SWT_Switch"); //$NON-NLS-1$
+ }
+ if (childID >= items.length && childID < items.length + EXTRA_CHILD_ID_COUNT) {
+ action = SWT.getMessage ("SWT_Press"); //$NON-NLS-1$
+ }
+ e.result = action;
+ }
+
+ public void getFocus(AccessibleControlEvent e) {
+ int childID = ACC.CHILDID_NONE;
+ if (isFocusControl()) {
+ if (selectedIndex == -1) {
+ childID = ACC.CHILDID_SELF;
+ } else {
+ childID = selectedIndex;
+ }
+ }
+ e.childID = childID;
+ }
+
+ public void getRole(AccessibleControlEvent e) {
+ int role = 0;
+ int childID = e.childID;
+ if (childID == ACC.CHILDID_SELF) {
+ role = ACC.ROLE_TABFOLDER;
+ } else if (childID >= 0 && childID < items.length) {
+ role = ACC.ROLE_TABITEM;
+ } else if (childID >= items.length && childID < items.length + EXTRA_CHILD_ID_COUNT) {
+ role = ACC.ROLE_PUSHBUTTON;
+ }
+ e.detail = role;
+ }
+
+ public void getSelection(AccessibleControlEvent e) {
+ e.childID = (selectedIndex == -1) ? ACC.CHILDID_NONE : selectedIndex;
+ }
+
+ public void getState(AccessibleControlEvent e) {
+ int state = 0;
+ int childID = e.childID;
+ if (childID == ACC.CHILDID_SELF) {
+ state = ACC.STATE_NORMAL;
+ } else if (childID >= 0 && childID < items.length) {
+ state = ACC.STATE_SELECTABLE;
+ if (isFocusControl()) {
+ state |= ACC.STATE_FOCUSABLE;
+ }
+ if (selectedIndex == childID) {
+ state |= ACC.STATE_SELECTED;
+ if (isFocusControl()) {
+ state |= ACC.STATE_FOCUSED;
+ }
+ }
+ } else if (childID == items.length + CHEVRON_CHILD_ID) {
+ state = showChevron ? ACC.STATE_NORMAL : ACC.STATE_INVISIBLE;
+ } else if (childID == items.length + MINIMIZE_CHILD_ID) {
+ state = showMin ? ACC.STATE_NORMAL : ACC.STATE_INVISIBLE;
+ } else if (childID == items.length + MAXIMIZE_CHILD_ID) {
+ state = showMax ? ACC.STATE_NORMAL : ACC.STATE_INVISIBLE;
+ }
+ e.detail = state;
+ }
+
+ public void getChildren(AccessibleControlEvent e) {
+ int childIdCount = items.length + EXTRA_CHILD_ID_COUNT;
+ Object[] children = new Object[childIdCount];
+ for (int i = 0; i < childIdCount; i++) {
+ children[i] = new Integer(i);
+ }
+ e.children = children;
+ }
+ });
+
+ addListener(SWT.Selection, new Listener() {
+ public void handleEvent(Event event) {
+ if (isFocusControl()) {
+ if (selectedIndex == -1) {
+ accessible.setFocus(ACC.CHILDID_SELF);
+ } else {
+ accessible.setFocus(selectedIndex);
+ }
+ }
+ }
+ });
+
+ addListener(SWT.FocusIn, new Listener() {
+ public void handleEvent(Event event) {
+ if (selectedIndex == -1) {
+ accessible.setFocus(ACC.CHILDID_SELF);
+ } else {
+ accessible.setFocus(selectedIndex);
+ }
+ }
+ });
+}
+void onKeyDown (Event event) {
+ switch (event.keyCode) {
+ case SWT.ARROW_LEFT:
+ case SWT.ARROW_RIGHT:
+ int count = items.length;
+ if (count == 0) return;
+ if (selectedIndex == -1) return;
+ int leadKey = (getStyle() & SWT.RIGHT_TO_LEFT) != 0 ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT;
+ int offset = event.keyCode == leadKey ? -1 : 1;
+ int index;
+ if (!mru) {
+ index = selectedIndex + offset;
+ } else {
+ int[] visible = new int[items.length];
+ int idx = 0;
+ int current = -1;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].showing) {
+ if (i == selectedIndex) current = idx;
+ visible [idx++] = i;
+ }
+ }
+ if (current + offset >= 0 && current + offset < idx){
+ index = visible [current + offset];
+ } else {
+ if (showChevron) {
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ e.x = chevronRect.x;
+ e.y = chevronRect.y;
+ e.width = chevronRect.width;
+ e.height = chevronRect.height;
+ e.doit = true;
+ for (int i = 0; i < folderListeners.length; i++) {
+ folderListeners[i].showList(e);
+ }
+ if (e.doit && !isDisposed()) {
+ showList(chevronRect);
+ }
+ }
+ return;
+ }
+ }
+ if (index < 0 || index >= count) return;
+ setSelection (index, true);
+ forceFocus();
+ }
+}
+void onDispose(Event event) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+ /*
+ * Usually when an item is disposed, destroyItem will change the size of the items array,
+ * reset the bounds of all the tabs and manage the widget associated with the tab.
+ * Since the whole folder is being disposed, this is not necessary. For speed
+ * the inDispose flag is used to skip over this part of the item dispose.
+ */
+ inDispose = true;
+
+ if (showMenu != null && !showMenu.isDisposed()) {
+ showMenu.dispose();
+ showMenu = null;
+ }
+ int length = items.length;
+ for (int i = 0; i < length; i++) {
+ if (items[i] != null) {
+ items[i].dispose();
+ }
+ }
+ if (fillColor != null) {
+ fillColor.dispose();
+ fillColor = null;
+ }
+
+ selectionGradientColors = null;
+ selectionGradientPercents = null;
+ selectionBgImage = null;
+
+ selectionBackground = null;
+ selectionForeground = null;
+ disposeSelectionHighlightGradientColors();
+}
+void onDragDetect(Event event) {
+ boolean consume = false;
+ if (chevronRect.contains(event.x, event.y) ||
+ minRect.contains(event.x, event.y) ||
+ maxRect.contains(event.x, event.y)){
+ consume = true;
+ } else {
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].closeRect.contains(event.x, event.y)) {
+ consume = true;
+ break;
+ }
+ }
+ }
+ if (consume) {
+ event.type = SWT.None;
+ }
+}
+void onFocus(Event event) {
+ checkWidget();
+ if (selectedIndex >= 0) {
+ redraw();
+ } else {
+ setSelection(0, true);
+ }
+}
+boolean onMnemonic (Event event, boolean doit) {
+ char key = event.character;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i] != null) {
+ char mnemonic = _findMnemonic (items[i].getText ());
+ if (mnemonic != '\0') {
+ if (Character.toLowerCase (key) == mnemonic) {
+ if (doit) setSelection(i, true);
+ return true;
+ }
+ }
+ }
+ }
+ return false;
+}
+void onMouseDoubleClick(Event event) {
+ if (event.button != 1 ||
+ (event.stateMask & SWT.BUTTON2) != 0 ||
+ (event.stateMask & SWT.BUTTON3) != 0) return;
+ Event e = new Event();
+ e.item = getItem(new Point(event.x, event.y));
+ if (e.item != null) {
+ notifyListeners(SWT.DefaultSelection, e);
+ }
+}
+void onMouse(Event event) {
+ int x = event.x, y = event.y;
+ switch (event.type) {
+ case SWT.MouseEnter: {
+ setToolTipText(null);
+ break;
+ }
+ case SWT.MouseExit: {
+ if (minImageState != NORMAL) {
+ minImageState = NORMAL;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+ }
+ if (maxImageState != NORMAL) {
+ maxImageState = NORMAL;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+ }
+ if (chevronImageState != NORMAL) {
+ chevronImageState = NORMAL;
+ redraw(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, false);
+ }
+ for (int i=0; i<items.length; i++) {
+ CTabItem item = items[i];
+ if (i != selectedIndex && item.closeImageState != NONE) {
+ item.closeImageState = NONE;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ if (i == selectedIndex && item.closeImageState != NORMAL) {
+ item.closeImageState = NORMAL;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ }
+ break;
+ }
+ case SWT.MouseDown: {
+ if (event.button != 1) return;
+ if (minRect.contains(x, y)) {
+ minImageState = SELECTED;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+ update();
+ return;
+ }
+ if (maxRect.contains(x, y)) {
+ maxImageState = SELECTED;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+ update();
+ return;
+ }
+ if (chevronRect.contains(x, y)) {
+ if (chevronImageState != HOT) {
+ chevronImageState = HOT;
+ } else {
+ chevronImageState = SELECTED;
+ }
+ redraw(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, false);
+ update();
+ return;
+ }
+ CTabItem item = null;
+ if (single) {
+ if (selectedIndex != -1) {
+ Rectangle bounds = items[selectedIndex].getBounds();
+ if (bounds.contains(x, y)){
+ item = items[selectedIndex];
+ }
+ }
+ } else {
+ for (int i=0; i<items.length; i++) {
+ Rectangle bounds = items[i].getBounds();
+ if (bounds.contains(x, y)){
+ item = items[i];
+ }
+ }
+ }
+ if (item != null) {
+ if (item.closeRect.contains(x,y)){
+ item.closeImageState = SELECTED;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ update();
+ return;
+ }
+ int index = indexOf(item);
+ if (item.showing){
+ setSelection(index, true);
+ }
+ return;
+ }
+ break;
+ }
+ case SWT.MouseMove: {
+ _setToolTipText(event.x, event.y);
+ boolean close = false, minimize = false, maximize = false, chevron = false;
+ if (minRect.contains(x, y)) {
+ minimize = true;
+ if (minImageState != SELECTED && minImageState != HOT) {
+ minImageState = HOT;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+ }
+ }
+ if (maxRect.contains(x, y)) {
+ maximize = true;
+ if (maxImageState != SELECTED && maxImageState != HOT) {
+ maxImageState = HOT;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+ }
+ }
+ if (chevronRect.contains(x, y)) {
+ chevron = true;
+ if (chevronImageState != SELECTED && chevronImageState != HOT) {
+ chevronImageState = HOT;
+ redraw(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, false);
+ }
+ }
+ if (minImageState != NORMAL && !minimize) {
+ minImageState = NORMAL;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+ }
+ if (maxImageState != NORMAL && !maximize) {
+ maxImageState = NORMAL;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+ }
+ if (chevronImageState != NORMAL && !chevron) {
+ chevronImageState = NORMAL;
+ redraw(chevronRect.x, chevronRect.y, chevronRect.width, chevronRect.height, false);
+ }
+ for (int i=0; i<items.length; i++) {
+ CTabItem item = items[i];
+ close = false;
+ if (item.getBounds().contains(x, y)) {
+ close = true;
+ if (item.closeRect.contains(x, y)) {
+ if (item.closeImageState != SELECTED && item.closeImageState != HOT) {
+ item.closeImageState = HOT;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ } else {
+ if (item.closeImageState != NORMAL) {
+ item.closeImageState = NORMAL;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ }
+ }
+ if (i != selectedIndex && item.closeImageState != NONE && !close) {
+ item.closeImageState = NONE;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ if (i == selectedIndex && item.closeImageState != NORMAL && !close) {
+ item.closeImageState = NORMAL;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ }
+ }
+ break;
+ }
+ case SWT.MouseUp: {
+ if (event.button != 1) return;
+ if (chevronRect.contains(x, y)) {
+ boolean selected = chevronImageState == SELECTED;
+ if (!selected) return;
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ e.x = chevronRect.x;
+ e.y = chevronRect.y;
+ e.width = chevronRect.width;
+ e.height = chevronRect.height;
+ e.doit = true;
+ for (int i = 0; i < folderListeners.length; i++) {
+ folderListeners[i].showList(e);
+ }
+ if (e.doit && !isDisposed()) {
+ showList(chevronRect);
+ }
+ return;
+ }
+ if (minRect.contains(x, y)) {
+ boolean selected = minImageState == SELECTED;
+ minImageState = HOT;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+ if (!selected) return;
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ for (int i = 0; i < folderListeners.length; i++) {
+ if (minimized) {
+ folderListeners[i].restore(e);
+ } else {
+ folderListeners[i].minimize(e);
+ }
+ }
+ return;
+ }
+ if (maxRect.contains(x, y)) {
+ boolean selected = maxImageState == SELECTED;
+ maxImageState = HOT;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+ if (!selected) return;
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ for (int i = 0; i < folderListeners.length; i++) {
+ if (maximized) {
+ folderListeners[i].restore(e);
+ } else {
+ folderListeners[i].maximize(e);
+ }
+ }
+ return;
+ }
+ CTabItem item = null;
+ if (single) {
+ if (selectedIndex != -1) {
+ Rectangle bounds = items[selectedIndex].getBounds();
+ if (bounds.contains(x, y)){
+ item = items[selectedIndex];
+ }
+ }
+ } else {
+ for (int i=0; i<items.length; i++) {
+ Rectangle bounds = items[i].getBounds();
+ if (bounds.contains(x, y)){
+ item = items[i];
+ }
+ }
+ }
+ if (item != null) {
+ if (item.closeRect.contains(x,y)) {
+ boolean selected = item.closeImageState == SELECTED;
+ item.closeImageState = HOT;
+ redraw(item.closeRect.x, item.closeRect.y, item.closeRect.width, item.closeRect.height, false);
+ if (!selected) return;
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ e.item = item;
+ e.doit = true;
+ for (int j = 0; j < folderListeners.length; j++) {
+ CTabFolder2Listener listener = folderListeners[j];
+ listener.close(e);
+ }
+ for (int j = 0; j < tabListeners.length; j++) {
+ CTabFolderListener listener = tabListeners[j];
+ listener.itemClosed(e);
+ }
+ if (e.doit) item.dispose();
+ if (!isDisposed() && item.isDisposed()) {
+ Display display = getDisplay();
+ Point pt = display.getCursorLocation();
+ pt = display.map(null, this, pt.x, pt.y);
+ CTabItem nextItem = getItem(pt);
+ if (nextItem != null) {
+ if (nextItem.closeRect.contains(pt)) {
+ if (nextItem.closeImageState != SELECTED && nextItem.closeImageState != HOT) {
+ nextItem.closeImageState = HOT;
+ redraw(nextItem.closeRect.x, nextItem.closeRect.y, nextItem.closeRect.width, nextItem.closeRect.height, false);
+ }
+ } else {
+ if (nextItem.closeImageState != NORMAL) {
+ nextItem.closeImageState = NORMAL;
+ redraw(nextItem.closeRect.x, nextItem.closeRect.y, nextItem.closeRect.width, nextItem.closeRect.height, false);
+ }
+ }
+ }
+ }
+ return;
+ }
+ }
+ }
+ }
+}
+void onPageTraversal(Event event) {
+ int count = items.length;
+ if (count == 0) return;
+ int index = selectedIndex;
+ if (index == -1) {
+ index = 0;
+ } else {
+ int offset = (event.detail == SWT.TRAVERSE_PAGE_NEXT) ? 1 : -1;
+ if (!mru) {
+ index = (selectedIndex + offset + count) % count;
+ } else {
+ int[] visible = new int[items.length];
+ int idx = 0;
+ int current = -1;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].showing) {
+ if (i == selectedIndex) current = idx;
+ visible [idx++] = i;
+ }
+ }
+ if (current + offset >= 0 && current + offset < idx){
+ index = visible [current + offset];
+ } else {
+ if (showChevron) {
+ CTabFolderEvent e = new CTabFolderEvent(this);
+ e.widget = this;
+ e.time = event.time;
+ e.x = chevronRect.x;
+ e.y = chevronRect.y;
+ e.width = chevronRect.width;
+ e.height = chevronRect.height;
+ e.doit = true;
+ for (int i = 0; i < folderListeners.length; i++) {
+ folderListeners[i].showList(e);
+ }
+ if (e.doit && !isDisposed()) {
+ showList(chevronRect);
+ }
+ }
+ }
+ }
+ }
+ setSelection (index, true);
+}
+void onPaint(Event event) {
+ if (inDispose) return;
+ Font font = getFont();
+ if (oldFont == null || !oldFont.equals(font)) {
+ // handle case where default font changes
+ oldFont = font;
+ if (!updateTabHeight(false)) {
+ updateItems();
+ redraw();
+ return;
+ }
+ }
+
+ GC gc = event.gc;
+ Font gcFont = gc.getFont();
+ Color gcBackground = gc.getBackground();
+ Color gcForeground = gc.getForeground();
+
+// Useful for debugging paint problems
+//{
+//Point size = getSize();
+//gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_GREEN));
+//gc.fillRectangle(-10, -10, size.x + 20, size.y+20);
+//}
+
+ drawBody(event);
+
+ gc.setFont(gcFont);
+ gc.setForeground(gcForeground);
+ gc.setBackground(gcBackground);
+
+ drawTabArea(event);
+
+ gc.setFont(gcFont);
+ gc.setForeground(gcForeground);
+ gc.setBackground(gcBackground);
+}
+
+void onResize() {
+ if (updateItems()) redrawTabs();
+
+ Point size = getSize();
+ if (oldSize == null) {
+ redraw();
+ } else {
+ if (onBottom && size.y != oldSize.y) {
+ redraw();
+ } else {
+ int x1 = Math.min(size.x, oldSize.x);
+ if (size.x != oldSize.x) x1 -= borderRight + highlight_margin + 2;
+ if (!simple) x1 -= 5; // rounded top right corner
+ int y1 = Math.min(size.y, oldSize.y);
+ if (size.y != oldSize.y) y1 -= borderBottom + highlight_margin;
+ int x2 = Math.max(size.x, oldSize.x);
+ int y2 = Math.max(size.y, oldSize.y);
+ redraw(0, y1, x2, y2 - y1, false);
+ redraw(x1, 0, x2 - x1, y2, false);
+ }
+ }
+ oldSize = size;
+}
+void onTraverse (Event event) {
+ if (ignoreTraverse) return;
+ switch (event.detail) {
+ case SWT.TRAVERSE_ESCAPE:
+ case SWT.TRAVERSE_RETURN:
+ case SWT.TRAVERSE_TAB_NEXT:
+ case SWT.TRAVERSE_TAB_PREVIOUS:
+ Control focusControl = getDisplay().getFocusControl();
+ if (focusControl == this) event.doit = true;
+ break;
+ case SWT.TRAVERSE_MNEMONIC:
+ event.doit = onMnemonic(event, false);
+ break;
+ case SWT.TRAVERSE_PAGE_NEXT:
+ case SWT.TRAVERSE_PAGE_PREVIOUS:
+ event.doit = items.length > 0;
+ break;
+ }
+ ignoreTraverse = true;
+ notifyListeners(SWT.Traverse, event);
+ ignoreTraverse = false;
+ event.type = SWT.None;
+ if (isDisposed()) return;
+ if (!event.doit) return;
+ switch (event.detail) {
+ case SWT.TRAVERSE_MNEMONIC:
+ onMnemonic(event, true);
+ event.detail = SWT.TRAVERSE_NONE;
+ break;
+ case SWT.TRAVERSE_PAGE_NEXT:
+ case SWT.TRAVERSE_PAGE_PREVIOUS:
+ onPageTraversal(event);
+ event.detail = SWT.TRAVERSE_NONE;
+ break;
+ }
+}
+void redrawTabs() {
+ Point size = getSize();
+ if (onBottom) {
+ redraw(0, size.y - borderBottom - tabHeight - highlight_header - 1, size.x, borderBottom + tabHeight + highlight_header + 1, false);
+ } else {
+ redraw(0, 0, size.x, borderTop + tabHeight + highlight_header + 1, false);
+ }
+}
+/**
+ * Removes the listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @see #addCTabFolder2Listener(CTabFolder2Listener)
+ *
+ * @since 3.0
+ */
+public void removeCTabFolder2Listener(CTabFolder2Listener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ if (folderListeners.length == 0) return;
+ int index = -1;
+ for (int i = 0; i < folderListeners.length; i++) {
+ if (listener == folderListeners[i]){
+ index = i;
+ break;
+ }
+ }
+ if (index == -1) return;
+ if (folderListeners.length == 1) {
+ folderListeners = new CTabFolder2Listener[0];
+ return;
+ }
+ CTabFolder2Listener[] newTabListeners = new CTabFolder2Listener[folderListeners.length - 1];
+ System.arraycopy(folderListeners, 0, newTabListeners, 0, index);
+ System.arraycopy(folderListeners, index + 1, newTabListeners, index, folderListeners.length - index - 1);
+ folderListeners = newTabListeners;
+}
+/**
+ * Removes the listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @deprecated see removeCTabFolderCloseListener(CTabFolderListener)
+ */
+public void removeCTabFolderListener(CTabFolderListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ if (tabListeners.length == 0) return;
+ int index = -1;
+ for (int i = 0; i < tabListeners.length; i++) {
+ if (listener == tabListeners[i]){
+ index = i;
+ break;
+ }
+ }
+ if (index == -1) return;
+ if (tabListeners.length == 1) {
+ tabListeners = new CTabFolderListener[0];
+ return;
+ }
+ CTabFolderListener[] newTabListeners = new CTabFolderListener[tabListeners.length - 1];
+ System.arraycopy(tabListeners, 0, newTabListeners, 0, index);
+ System.arraycopy(tabListeners, index + 1, newTabListeners, index, tabListeners.length - index - 1);
+ tabListeners = newTabListeners;
+}
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's selection.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #addSelectionListener
+ */
+public void removeSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ removeListener(SWT.Selection, listener);
+ removeListener(SWT.DefaultSelection, listener);
+}
+public void setBackground (Color color) {
+ super.setBackground(color);
+ redraw();
+}
+/**
+ * Specify a gradient of colours to be drawn in the background of the unselected tabs.
+ * For example to draw a gradient that varies from dark blue to blue and then to
+ * white, use the following call to setBackground:
+ * <pre>
+ * cfolder.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {25, 50, 100});
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance left to right. The value <code>null</code> clears the
+ * background gradient. The value <code>null</code> can be used inside the array of
+ * Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width
+ * of the widget at which the color should change. The size of the percents array must be one
+ * less than the size of the colors array.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+void setBackground(Color[] colors, int[] percents) {
+ setBackground(colors, percents, false);
+}
+/**
+ * Specify a gradient of colours to be drawn in the background of the unselected tab.
+ * For example to draw a vertical gradient that varies from dark blue to blue and then to
+ * white, use the following call to setBackground:
+ * <pre>
+ * cfolder.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {25, 50, 100}, true);
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance left to right. The value <code>null</code> clears the
+ * background gradient. The value <code>null</code> can be used inside the array of
+ * Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width
+ * of the widget at which the color should change. The size of the percents array must be one
+ * less than the size of the colors array.
+ *
+ * @param vertical indicate the direction of the gradient. True is vertical and false is horizontal.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+void setBackground(Color[] colors, int[] percents, boolean vertical) {
+ checkWidget();
+ if (colors != null) {
+ if (percents == null || percents.length != colors.length - 1) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ for (int i = 0; i < percents.length; i++) {
+ if (percents[i] < 0 || percents[i] > 100) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (i > 0 && percents[i] < percents[i-1]) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ if (getDisplay().getDepth() < 15) {
+ // Don't use gradients on low color displays
+ colors = new Color[] {colors[colors.length - 1]};
+ percents = new int[] {};
+ }
+ }
+
+ // Are these settings the same as before?
+ if ((gradientColors != null) && (colors != null) &&
+ (gradientColors.length == colors.length)) {
+ boolean same = false;
+ for (int i = 0; i < gradientColors.length; i++) {
+ if (gradientColors[i] == null) {
+ same = colors[i] == null;
+ } else {
+ same = gradientColors[i].equals(colors[i]);
+ }
+ if (!same) break;
+ }
+ if (same) {
+ for (int i = 0; i < gradientPercents.length; i++) {
+ same = gradientPercents[i] == percents[i];
+ if (!same) break;
+ }
+ }
+ if (same && this.gradientVertical == vertical) return;
+ }
+ // Store the new settings
+ if (colors == null) {
+ gradientColors = null;
+ gradientPercents = null;
+ gradientVertical = false;
+ setBackground((Color)null);
+ } else {
+ gradientColors = new Color[colors.length];
+ for (int i = 0; i < colors.length; ++i) {
+ gradientColors[i] = colors[i];
+ }
+ gradientPercents = new int[percents.length];
+ for (int i = 0; i < percents.length; ++i) {
+ gradientPercents[i] = percents[i];
+ }
+ gradientVertical = vertical;
+ setBackground(gradientColors[gradientColors.length-1]);
+ }
+
+ // Refresh with the new settings
+ redraw();
+}
+/**
+ * Toggle the visibility of the border
+ *
+ * @param show true if the border should be displayed
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBorderVisible(boolean show) {
+ checkWidget();
+ if ((borderLeft == 1) == show) return;
+ borderLeft = borderRight = show ? 1 : 0;
+ borderTop = onBottom ? borderLeft : 0;
+ borderBottom = onBottom ? 0 : borderLeft;
+ Rectangle rectBefore = getClientArea();
+ updateItems();
+ Rectangle rectAfter = getClientArea();
+ if (!rectBefore.equals(rectAfter)) {
+ notifyListeners(SWT.Resize, new Event());
+ }
+ redraw();
+}
+void setButtonBounds() {
+ Point size = getSize();
+ int oldX, oldY, oldWidth, oldHeight;
+ // max button
+ oldX = maxRect.x;
+ oldY = maxRect.y;
+ oldWidth = maxRect.width;
+ oldHeight = maxRect.height;
+ maxRect.x = maxRect.y = maxRect.width = maxRect.height = 0;
+ if (showMax) {
+ maxRect.x = size.x - borderRight - BUTTON_SIZE - 3;
+ if (borderRight > 0) maxRect.x += 1;
+ maxRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - BUTTON_SIZE)/2: borderTop + (tabHeight - BUTTON_SIZE)/2;
+ maxRect.width = BUTTON_SIZE;
+ maxRect.height = BUTTON_SIZE;
+ }
+ if (oldX != maxRect.x || oldWidth != maxRect.width ||
+ oldY != maxRect.y || oldHeight != maxRect.height) {
+ int left = Math.min(oldX, maxRect.x);
+ int right = Math.max(oldX + oldWidth, maxRect.x + maxRect.width);
+ int top = onBottom ? size.y - borderBottom - tabHeight: borderTop + 1;
+ redraw(left, top, right - left, tabHeight, false);
+ }
+
+ // min button
+ oldX = minRect.x;
+ oldY = minRect.y;
+ oldWidth = minRect.width;
+ oldHeight = minRect.height;
+ minRect.x = minRect.y = minRect.width = minRect.height = 0;
+ if (showMin) {
+ minRect.x = size.x - borderRight - maxRect.width - BUTTON_SIZE - 3;
+ if (borderRight > 0) minRect.x += 1;
+ minRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - BUTTON_SIZE)/2: borderTop + (tabHeight - BUTTON_SIZE)/2;
+ minRect.width = BUTTON_SIZE;
+ minRect.height = BUTTON_SIZE;
+ }
+ if (oldX != minRect.x || oldWidth != minRect.width ||
+ oldY != minRect.y || oldHeight != minRect.height) {
+ int left = Math.min(oldX, minRect.x);
+ int right = Math.max(oldX + oldWidth, minRect.x + minRect.width);
+ int top = onBottom ? size.y - borderBottom - tabHeight: borderTop + 1;
+ redraw(left, top, right - left, tabHeight, false);
+ }
+
+ // top right control
+ oldX = topRightRect.x;
+ oldY = topRightRect.y;
+ oldWidth = topRightRect.width;
+ oldHeight = topRightRect.height;
+ topRightRect.x = topRightRect.y = topRightRect.width = topRightRect.height = 0;
+ if (topRight != null) {
+ switch (topRightAlignment) {
+ case SWT.FILL: {
+ int rightEdge = size.x - borderRight - 3 - maxRect.width - minRect.width;
+ if (!simple && borderRight > 0 && !showMax && !showMin) rightEdge -= 2;
+ if (single) {
+ if (items.length == 0 || selectedIndex == -1) {
+ topRightRect.x = borderLeft + 3;
+ topRightRect.width = rightEdge - topRightRect.x;
+ } else {
+ // fill size is 0 if item compressed
+ CTabItem item = items[selectedIndex];
+ if (item.x + item.width + 7 + 3*BUTTON_SIZE/2 >= rightEdge) break;
+ topRightRect.x = item.x + item.width + 7 + 3*BUTTON_SIZE/2;
+ topRightRect.width = rightEdge - topRightRect.x;
+ }
+ } else {
+ // fill size is 0 if chevron showing
+ if (showChevron) break;
+ if (items.length == 0) {
+ topRightRect.x = borderLeft + 3;
+ } else {
+ CTabItem item = items[items.length - 1];
+ topRightRect.x = item.x + item.width;
+ if (!simple && items.length - 1 == selectedIndex) topRightRect.x += curveWidth - curveIndent;
+ }
+ topRightRect.width = Math.max(0, rightEdge - topRightRect.x);
+ }
+ topRightRect.y = onBottom ? size.y - borderBottom - tabHeight: borderTop + 1;
+ topRightRect.height = tabHeight - 1;
+ break;
+ }
+ case SWT.RIGHT: {
+ Point topRightSize = topRight.computeSize(SWT.DEFAULT, tabHeight, false);
+ int rightEdge = size.x - borderRight - 3 - maxRect.width - minRect.width;
+ if (!simple && borderRight > 0 && !showMax && !showMin) rightEdge -= 2;
+ topRightRect.x = rightEdge - topRightSize.x;
+ topRightRect.width = topRightSize.x;
+ topRightRect.y = onBottom ? size.y - borderBottom - tabHeight: borderTop + 1;
+ topRightRect.height = tabHeight - 1;
+ }
+ }
+ topRight.setBounds(topRightRect);
+ }
+ if (oldX != topRightRect.x || oldWidth != topRightRect.width ||
+ oldY != topRightRect.y || oldHeight != topRightRect.height) {
+ int left = Math.min(oldX, topRightRect.x);
+ int right = Math.max(oldX + oldWidth, topRightRect.x + topRightRect.width);
+ int top = onBottom ? size.y - borderBottom - tabHeight : borderTop + 1;
+ redraw(left, top, right - left, tabHeight, false);
+ }
+
+ // chevron button
+ oldX = chevronRect.x;
+ oldY = chevronRect.y;
+ oldWidth = chevronRect.width;
+ oldHeight = chevronRect.height;
+ chevronRect.x = chevronRect.y = chevronRect.height = chevronRect.width = 0;
+ if (single) {
+ if (selectedIndex == -1 || items.length > 1) {
+ chevronRect.width = 3*BUTTON_SIZE/2;
+ chevronRect.height = BUTTON_SIZE;
+ chevronRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - chevronRect.height)/2 : borderTop + (tabHeight - chevronRect.height)/2;
+ if (selectedIndex == -1) {
+ chevronRect.x = size.x - borderRight - 3 - minRect.width - maxRect.width - topRightRect.width - chevronRect.width;
+ } else {
+ CTabItem item = items[selectedIndex];
+ int w = size.x - borderRight - 3 - minRect.width - maxRect.width - chevronRect.width;
+ if (topRightRect.width > 0) w -= topRightRect.width + 3;
+ chevronRect.x = Math.min(item.x + item.width + 3, w);
+ }
+ if (borderRight > 0) chevronRect.x += 1;
+ }
+ } else {
+ if (showChevron) {
+ chevronRect.width = 3*BUTTON_SIZE/2;
+ chevronRect.height = BUTTON_SIZE;
+ int i = 0, lastIndex = -1;
+ while (i < priority.length && items[priority[i]].showing) {
+ lastIndex = Math.max(lastIndex, priority[i++]);
+ }
+ if (lastIndex == -1) lastIndex = firstIndex;
+ CTabItem lastItem = items[lastIndex];
+ int w = lastItem.x + lastItem.width + 3;
+ if (!simple && lastIndex == selectedIndex) w += curveWidth - 2*curveIndent;
+ chevronRect.x = Math.min(w, getRightItemEdge());
+ chevronRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - chevronRect.height)/2 : borderTop + (tabHeight - chevronRect.height)/2;
+ }
+ }
+ if (oldX != chevronRect.x || oldWidth != chevronRect.width ||
+ oldY != chevronRect.y || oldHeight != chevronRect.height) {
+ int left = Math.min(oldX, chevronRect.x);
+ int right = Math.max(oldX + oldWidth, chevronRect.x + chevronRect.width);
+ int top = onBottom ? size.y - borderBottom - tabHeight: borderTop + 1;
+ redraw(left, top, right - left, tabHeight, false);
+ }
+}
+public void setFont(Font font) {
+ checkWidget();
+ if (font != null && font.equals(getFont())) return;
+ super.setFont(font);
+ oldFont = getFont();
+ if (!updateTabHeight(false)) {
+ updateItems();
+ redraw();
+ }
+}
+public void setForeground (Color color) {
+ super.setForeground(color);
+ redraw();
+}
+/**
+ * Display an insert marker before or after the specified tab item.
+ *
+ * A value of null will clear the mark.
+ *
+ * @param item the item with which the mark is associated or null
+ *
+ * @param after true if the mark should be displayed after the specified item
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setInsertMark(CTabItem item, boolean after) {
+ checkWidget();
+}
+/**
+ * Display an insert marker before or after the specified tab item.
+ *
+ * A value of -1 will clear the mark.
+ *
+ * @param index the index of the item with which the mark is associated or null
+ *
+ * @param after true if the mark should be displayed after the specified item
+ *
+ * @exception IllegalArgumentException<ul>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setInsertMark(int index, boolean after) {
+ checkWidget();
+ if (index < -1 || index >= getItemCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+}
+boolean setItemLocation() {
+ boolean changed = false;
+ if (items.length == 0) return false;
+ Point size = getSize();
+ int y = onBottom ? Math.max(borderBottom, size.y - borderBottom - tabHeight) : borderTop;
+ if (single) {
+ int defaultX = getDisplay().getBounds().width + 10; // off screen
+ for (int i = 0; i < items.length; i++) {
+ CTabItem item = items[i];
+ if (i == selectedIndex) {
+ firstIndex = selectedIndex;
+ int oldX = item.x, oldY = item.y;
+ item.x = borderLeft;
+ item.y = y;
+ item.showing = true;
+ if (showClose || item.showClose) {
+ item.closeRect.x = borderLeft + CTabItem.LEFT_MARGIN;
+ item.closeRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - BUTTON_SIZE)/2: borderTop + (tabHeight - BUTTON_SIZE)/2;
+ }
+ if (item.x != oldX || item.y != oldY) changed = true;
+ } else {
+ item.x = defaultX;
+ item.showing = false;
+ }
+ }
+ } else {
+ int rightItemEdge = getRightItemEdge();
+ int maxWidth = rightItemEdge - borderLeft;
+ int width = 0;
+ for (int i = 0; i < priority.length; i++) {
+ CTabItem item = items[priority[i]];
+ width += item.width;
+ item.showing = i == 0 ? true : item.width > 0 && width <= maxWidth;
+ if (!simple && priority[i] == selectedIndex) width += curveWidth - 2*curveIndent;
+ }
+ int x = 0;
+ int defaultX = getDisplay().getBounds().width + 10; // off screen
+ firstIndex = items.length - 1;
+ for (int i = 0; i < items.length; i++) {
+ CTabItem item = items[i];
+ if (!item.showing) {
+ if (item.x != defaultX) changed = true;
+ item.x = defaultX;
+ } else {
+ firstIndex = Math.min(firstIndex, i);
+ if (item.x != x || item.y != y) changed = true;
+ item.x = x;
+ item.y = y;
+ if (i == selectedIndex) {
+ int edge = Math.min(item.x + item.width, rightItemEdge);
+ item.closeRect.x = edge - CTabItem.RIGHT_MARGIN - BUTTON_SIZE;
+ } else {
+ item.closeRect.x = item.x + item.width - CTabItem.RIGHT_MARGIN - BUTTON_SIZE;
+ }
+ item.closeRect.y = onBottom ? size.y - borderBottom - tabHeight + (tabHeight - BUTTON_SIZE)/2: borderTop + (tabHeight - BUTTON_SIZE)/2;
+ x = x + item.width;
+ if (!simple && i == selectedIndex) x += curveWidth - 2*curveIndent;
+ }
+ }
+ }
+ return changed;
+}
+boolean setItemSize() {
+ boolean changed = false;
+ if (isDisposed()) return changed;
+ Point size = getSize();
+ if (size.x <= 0 || size.y <= 0) return changed;
+ xClient = borderLeft + marginWidth + highlight_margin;
+ if (onBottom) {
+ yClient = borderTop + highlight_margin + marginHeight;
+ } else {
+ yClient = borderTop + tabHeight + highlight_header + marginHeight;
+ }
+ showChevron = false;
+ if (single) {
+ showChevron = true;
+ if (selectedIndex != -1) {
+ CTabItem tab = items[selectedIndex];
+ GC gc = new GC(this);
+ int width = tab.preferredWidth(gc, true, false);
+ gc.dispose();
+ width = Math.min(width, getRightItemEdge() - borderLeft);
+ if (tab.height != tabHeight || tab.width != width) {
+ changed = true;
+ tab.shortenedText = null;
+ tab.shortenedTextWidth = 0;
+ tab.height = tabHeight;
+ tab.width = width;
+ tab.closeRect.width = tab.closeRect.height = 0;
+ if (showClose || tab.showClose) {
+ tab.closeRect.width = BUTTON_SIZE;
+ tab.closeRect.height = BUTTON_SIZE;
+ }
+ }
+ }
+ return changed;
+ }
+
+ if (items.length == 0) return changed;
+
+ int[] widths;
+ GC gc = new GC(this);
+ int tabAreaWidth = size.x - borderLeft - borderRight - 3;
+ if (showMin) tabAreaWidth -= BUTTON_SIZE;
+ if (showMax) tabAreaWidth -= BUTTON_SIZE;
+ if (topRightAlignment == SWT.RIGHT && topRight != null) {
+ Point rightSize = topRight.computeSize(SWT.DEFAULT, SWT.DEFAULT, false);
+ tabAreaWidth -= rightSize.x + 3;
+ }
+ if (!simple) tabAreaWidth -= curveWidth - 2*curveIndent;
+ tabAreaWidth = Math.max(0, tabAreaWidth);
+
+ // First, try the minimum tab size at full compression.
+ int minWidth = 0;
+ int[] minWidths = new int[items.length];
+ for (int i = 0; i < priority.length; i++) {
+ int index = priority[i];
+ minWidths[index] = items[index].preferredWidth(gc, index == selectedIndex, true);
+ minWidth += minWidths[index];
+ if (minWidth > tabAreaWidth) break;
+ }
+ if (minWidth > tabAreaWidth) {
+ // full compression required and a chevron
+ showChevron = items.length > 1;
+ if (showChevron) tabAreaWidth -= 3*BUTTON_SIZE/2;
+ widths = minWidths;
+ int index = selectedIndex != -1 ? selectedIndex : 0;
+ if (tabAreaWidth < widths[index]) {
+ widths[index] = Math.max(0, tabAreaWidth);
+ }
+ } else {
+ int maxWidth = 0;
+ int[] maxWidths = new int[items.length];
+ for (int i = 0; i < items.length; i++) {
+ maxWidths[i] = items[i].preferredWidth(gc, i == selectedIndex, false);
+ maxWidth += maxWidths[i];
+ }
+ if (maxWidth <= tabAreaWidth) {
+ // no compression required
+ widths = maxWidths;
+ } else {
+ // determine compression for each item
+ int extra = (tabAreaWidth - minWidth) / items.length;
+ while (true) {
+ int large = 0, totalWidth = 0;
+ for (int i = 0 ; i < items.length; i++) {
+ if (maxWidths[i] > minWidths[i] + extra) {
+ totalWidth += minWidths[i] + extra;
+ large++;
+ } else {
+ totalWidth += maxWidths[i];
+ }
+ }
+ if (totalWidth >= tabAreaWidth) {
+ extra--;
+ break;
+ }
+ if (large == 0 || tabAreaWidth - totalWidth < large) break;
+ extra++;
+ }
+ widths = new int[items.length];
+ for (int i = 0; i < items.length; i++) {
+ widths[i] = Math.min(maxWidths[i], minWidths[i] + extra);
+ }
+ }
+ }
+ gc.dispose();
+
+ for (int i = 0; i < items.length; i++) {
+ CTabItem tab = items[i];
+ int width = widths[i];
+ if (tab.height != tabHeight || tab.width != width) {
+ changed = true;
+ tab.shortenedText = null;
+ tab.shortenedTextWidth = 0;
+ tab.height = tabHeight;
+ tab.width = width;
+ tab.closeRect.width = tab.closeRect.height = 0;
+ if (showClose || tab.showClose) {
+ if (i == selectedIndex || showUnselectedClose) {
+ tab.closeRect.width = BUTTON_SIZE;
+ tab.closeRect.height = BUTTON_SIZE;
+ }
+ }
+ }
+ }
+ return changed;
+}
+/**
+ * Marks the receiver's maximize button as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setMaximizeVisible(boolean visible) {
+ checkWidget();
+ if (showMax == visible) return;
+ // display maximize button
+ showMax = visible;
+ updateItems();
+ redraw();
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget();
+ return;
+}
+/**
+ * Sets the maximized state of the receiver.
+ *
+ * @param maximize the new maximized state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setMaximized(boolean maximize) {
+ checkWidget ();
+ if (this.maximized == maximize) return;
+ if (maximize && this.minimized) setMinimized(false);
+ this.maximized = maximize;
+ redraw(maxRect.x, maxRect.y, maxRect.width, maxRect.height, false);
+}
+/**
+ * Marks the receiver's minimize button as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setMinimizeVisible(boolean visible) {
+ checkWidget();
+ if (showMin == visible) return;
+ // display minimize button
+ showMin = visible;
+ updateItems();
+ redraw();
+}
+/**
+ * Sets the minimized state of the receiver.
+ *
+ * @param minimize the new minimized state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setMinimized(boolean minimize) {
+ checkWidget ();
+ if (this.minimized == minimize) return;
+ if (minimize && this.maximized) setMaximized(false);
+ this.minimized = minimize;
+ redraw(minRect.x, minRect.y, minRect.width, minRect.height, false);
+}
+
+/**
+ * Sets the minimum number of characters that will
+ * be displayed in a fully compressed tab.
+ *
+ * @param count the minimum number of characters that will be displayed in a fully compressed tab
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_RANGE - if the count is less than zero</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setMinimumCharacters(int count) {
+ checkWidget ();
+ if (count < 0) SWT.error(SWT.ERROR_INVALID_RANGE);
+ if (minChars == count) return;
+ minChars = count;
+ if (updateItems()) redrawTabs();
+}
+
+/**
+ * When there is not enough horizontal space to show all the tabs,
+ * by default, tabs are shown sequentially from left to right in
+ * order of their index. When the MRU visibility is turned on,
+ * the tabs that are visible will be the tabs most recently selected.
+ * Tabs will still maintain their left to right order based on index
+ * but only the most recently selected tabs are visible.
+ * <p>
+ * For example, consider a CTabFolder that contains "Tab 1", "Tab 2",
+ * "Tab 3" and "Tab 4" (in order by index). The user selects
+ * "Tab 1" and then "Tab 3". If the CTabFolder is now
+ * compressed so that only two tabs are visible, by default,
+ * "Tab 2" and "Tab 3" will be shown ("Tab 3" since it is currently
+ * selected and "Tab 2" because it is the previous item in index order).
+ * If MRU visibility is enabled, the two visible tabs will be "Tab 1"
+ * and "Tab 3" (in that order from left to right).</p>
+ *
+ * @param show the new visibility state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public void setMRUVisible(boolean show) {
+ checkWidget();
+ if (mru == show) return;
+ mru = show;
+ if (!mru) {
+ int idx = firstIndex;
+ int next = 0;
+ for (int i = firstIndex; i < items.length; i++) {
+ priority[next++] = i;
+ }
+ for (int i = 0; i < idx; i++) {
+ priority[next++] = i;
+ }
+ if (updateItems()) redrawTabs();
+ }
+}
+/**
+ * Set the selection to the tab at the specified item.
+ *
+ * @param item the tab item to be selected
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the item is null</li>
+ * </ul>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setSelection(CTabItem item) {
+ checkWidget();
+ if (item == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ int index = indexOf(item);
+ setSelection(index);
+}
+/**
+ * Set the selection to the tab at the specified index.
+ *
+ * @param index the index of the tab item to be selected
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSelection(int index) {
+ checkWidget();
+ if (index < 0 || index >= items.length) return;
+ CTabItem selection = items[index];
+ if (selectedIndex == index) {
+ showItem(selection);
+ return;
+ }
+
+ int oldIndex = selectedIndex;
+ selectedIndex = index;
+ if (oldIndex != -1) {
+ items[oldIndex].closeImageState = NONE;
+ }
+ selection.closeImageState = NORMAL;
+ selection.showing = false;
+
+ Control newControl = selection.control;
+ Control oldControl = null;
+ if (oldIndex != -1) {
+ oldControl = items[oldIndex].control;
+ }
+
+ if (newControl != oldControl) {
+ if (newControl != null && !newControl.isDisposed()) {
+ newControl.setBounds(getClientArea());
+ newControl.setVisible(true);
+ }
+ if (oldControl != null && !oldControl.isDisposed()) {
+ oldControl.setVisible(false);
+ }
+ }
+ showItem(selection);
+ redraw();
+}
+void setSelection(int index, boolean notify) {
+ int oldSelectedIndex = selectedIndex;
+ setSelection(index);
+ if (notify && selectedIndex != oldSelectedIndex && selectedIndex != -1) {
+ Event event = new Event();
+ event.item = getItem(selectedIndex);
+ notifyListeners(SWT.Selection, event);
+ }
+}
+/**
+ * Sets the receiver's selection background color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setSelectionBackground (Color color) {
+ checkWidget();
+ setSelectionHighlightGradientColor(null);
+ if (selectionBackground == color) return;
+ if (color == null) color = getDisplay().getSystemColor(SELECTION_BACKGROUND);
+ selectionBackground = color;
+ if (selectedIndex > -1) redraw();
+}
+/**
+ * Specify a gradient of colours to be draw in the background of the selected tab.
+ * For example to draw a gradient that varies from dark blue to blue and then to
+ * white, use the following call to setBackground:
+ * <pre>
+ * cfolder.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {25, 50, 100});
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance left to right. The value <code>null</code> clears the
+ * background gradient. The value <code>null</code> can be used inside the array of
+ * Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width
+ * of the widget at which the color should change. The size of the percents array must be one
+ * less than the size of the colors array.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setSelectionBackground(Color[] colors, int[] percents) {
+ setSelectionBackground(colors, percents, false);
+}
+/**
+ * Specify a gradient of colours to be draw in the background of the selected tab.
+ * For example to draw a vertical gradient that varies from dark blue to blue and then to
+ * white, use the following call to setBackground:
+ * <pre>
+ * cfolder.setBackground(new Color[]{display.getSystemColor(SWT.COLOR_DARK_BLUE),
+ * display.getSystemColor(SWT.COLOR_BLUE),
+ * display.getSystemColor(SWT.COLOR_WHITE),
+ * display.getSystemColor(SWT.COLOR_WHITE)},
+ * new int[] {25, 50, 100}, true);
+ * </pre>
+ *
+ * @param colors an array of Color that specifies the colors to appear in the gradient
+ * in order of appearance left to right. The value <code>null</code> clears the
+ * background gradient. The value <code>null</code> can be used inside the array of
+ * Color to specify the background color.
+ * @param percents an array of integers between 0 and 100 specifying the percent of the width
+ * of the widget at which the color should change. The size of the percents array must be one
+ * less than the size of the colors array.
+ *
+ * @param vertical indicate the direction of the gradient. True is vertical and false is horizontal.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setSelectionBackground(Color[] colors, int[] percents, boolean vertical) {
+ checkWidget();
+ int colorsLength;
+ Color highlightBeginColor = null; //null == no highlight
+
+ if (colors != null) {
+ //The colors array can optionally have an extra entry which describes the highlight top color
+ //Thus its either one or two larger than the percents array
+ if (percents == null ||
+ ! ((percents.length == colors.length - 1) || (percents.length == colors.length - 2))){
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ for (int i = 0; i < percents.length; i++) {
+ if (percents[i] < 0 || percents[i] > 100) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (i > 0 && percents[i] < percents[i-1]) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ //If the colors is exactly two more than percents then last is highlight
+ //Keep track of *real* colorsLength (minus the highlight)
+ if(percents.length == colors.length - 2) {
+ highlightBeginColor = colors[colors.length - 1];
+ colorsLength = colors.length - 1;
+ } else {
+ colorsLength = colors.length;
+ }
+ if (getDisplay().getDepth() < 15) {
+ // Don't use gradients on low color displays
+ colors = new Color[] {colors[colorsLength - 1]};
+ colorsLength = colors.length;
+ percents = new int[] {};
+ }
+ } else {
+ colorsLength = 0;
+ }
+
+ // Are these settings the same as before?
+ if (selectionBgImage == null) {
+ if ((selectionGradientColors != null) && (colors != null) &&
+ (selectionGradientColors.length == colorsLength)) {
+ boolean same = false;
+ for (int i = 0; i < selectionGradientColors.length; i++) {
+ if (selectionGradientColors[i] == null) {
+ same = colors[i] == null;
+ } else {
+ same = selectionGradientColors[i].equals(colors[i]);
+ }
+ if (!same) break;
+ }
+ if (same) {
+ for (int i = 0; i < selectionGradientPercents.length; i++) {
+ same = selectionGradientPercents[i] == percents[i];
+ if (!same) break;
+ }
+ }
+ if (same && this.selectionGradientVertical == vertical) return;
+ }
+ } else {
+ selectionBgImage = null;
+ }
+ // Store the new settings
+ if (colors == null) {
+ selectionGradientColors = null;
+ selectionGradientPercents = null;
+ selectionGradientVertical = false;
+ setSelectionBackground((Color)null);
+ setSelectionHighlightGradientColor(null);
+ } else {
+ selectionGradientColors = new Color[colorsLength];
+ for (int i = 0; i < colorsLength; ++i) {
+ selectionGradientColors[i] = colors[i];
+ }
+ selectionGradientPercents = new int[percents.length];
+ for (int i = 0; i < percents.length; ++i) {
+ selectionGradientPercents[i] = percents[i];
+ }
+ selectionGradientVertical = vertical;
+ setSelectionBackground(selectionGradientColors[selectionGradientColors.length-1]);
+ setSelectionHighlightGradientColor(highlightBeginColor);
+ }
+
+ // Refresh with the new settings
+ if (selectedIndex > -1) redraw();
+}
+
+/*
+ * Set the color for the highlight start for selected tabs.
+ * Update the cache of highlight gradient colors if required.
+ */
+
+void setSelectionHighlightGradientColor(Color start) {
+ //Set to null to match all the early return cases.
+ //For early returns, don't realloc the cache, we may get a cache hit next time we're given the highlight
+ selectionHighlightGradientBegin = null;
+
+ if(start == null)
+ return;
+
+ //don't bother on low colour
+ if (getDisplay().getDepth() < 15)
+ return;
+
+ //don't bother if we don't have a background gradient
+ if(selectionGradientColors.length < 2)
+ return;
+
+ //OK we know its a valid gradient now
+ selectionHighlightGradientBegin = start;
+
+ if(! isSelectionHighlightColorsCacheHit(start))
+ createSelectionHighlightGradientColors(start); //if no cache hit then compute new ones
+}
+
+/*
+ * Return true if given start color, the cache of highlight colors we have
+ * would match the highlight colors we'd compute.
+ */
+boolean isSelectionHighlightColorsCacheHit(Color start) {
+
+ if(selectionHighlightGradientColorsCache == null)
+ return false;
+
+ //this case should never happen but check to be safe before accessing array indexes
+ if(selectionHighlightGradientColorsCache.length < 2)
+ return false;
+
+ Color highlightBegin = selectionHighlightGradientColorsCache[0];
+ Color highlightEnd = selectionHighlightGradientColorsCache[selectionHighlightGradientColorsCache.length - 1];
+
+ if(! highlightBegin.equals(start))
+ return false;
+
+ //Compare number of colours we have vs. we'd compute
+ if(selectionHighlightGradientColorsCache.length != tabHeight)
+ return false;
+
+ //Compare existing highlight end to what it would be (selectionBackground)
+ if(! highlightEnd.equals(selectionBackground))
+ return false;
+
+ return true;
+}
+
+/**
+ * Set the image to be drawn in the background of the selected tab. Image
+ * is stretched or compressed to cover entire selection tab area.
+ *
+ * @param image the image to be drawn in the background
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSelectionBackground(Image image) {
+ checkWidget();
+ setSelectionHighlightGradientColor(null);
+ if (image == selectionBgImage) return;
+ if (image != null) {
+ selectionGradientColors = null;
+ selectionGradientPercents = null;
+ disposeSelectionHighlightGradientColors();
+ }
+ selectionBgImage = image;
+ if (selectedIndex > -1) redraw();
+}
+/**
+ * Set the foreground color of the selected tab.
+ *
+ * @param color the color of the text displayed in the selected tab
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setSelectionForeground (Color color) {
+ checkWidget();
+ if (selectionForeground == color) return;
+ if (color == null) color = getDisplay().getSystemColor(SELECTION_FOREGROUND);
+ selectionForeground = color;
+ if (selectedIndex > -1) redraw();
+}
+
+/*
+ * Allocate colors for the highlight line.
+ * Colours will be a gradual blend ranging from to.
+ * Blend length will be tab height.
+ * Recompute this if tab height changes.
+ * Could remain null if there'd be no gradient (start=end or low colour display)
+ */
+void createSelectionHighlightGradientColors(Color start) {
+ disposeSelectionHighlightGradientColors(); //dispose if existing
+
+ if(start == null) //shouldn't happen but just to be safe
+ return;
+
+ //alloc colours for entire height to ensure it matches wherever we stop drawing
+ int fadeGradientSize = tabHeight;
+
+ RGB from = start.getRGB();
+ RGB to = selectionBackground.getRGB();
+
+ selectionHighlightGradientColorsCache = new Color[fadeGradientSize];
+ int denom = fadeGradientSize - 1;
+
+ for (int i = 0; i < fadeGradientSize; i++) {
+ int propFrom = denom - i;
+ int propTo = i;
+ int red = (to.red * propTo + from.red * propFrom) / denom;
+ int green = (to.green * propTo + from.green * propFrom) / denom;
+ int blue = (to.blue * propTo + from.blue * propFrom) / denom;
+ selectionHighlightGradientColorsCache[i] = new Color(getDisplay(), red, green, blue);
+ }
+}
+
+void disposeSelectionHighlightGradientColors() {
+ if(selectionHighlightGradientColorsCache == null)
+ return;
+ for (int i = 0; i < selectionHighlightGradientColorsCache.length; i++) {
+ selectionHighlightGradientColorsCache[i].dispose();
+ }
+ selectionHighlightGradientColorsCache = null;
+}
+
+/*
+ * Return the gradient start color for selected tabs, which is the start of the tab fade
+ * (end is selectionBackground).
+ */
+Color getSelectionBackgroundGradientBegin() {
+ if (selectionGradientColors == null)
+ return getSelectionBackground();
+ if (selectionGradientColors.length == 0)
+ return getSelectionBackground();
+ return selectionGradientColors[0];
+}
+
+/**
+ * Sets the shape that the CTabFolder will use to render itself.
+ *
+ * @param simple <code>true</code> if the CTabFolder should render itself in a simple, traditional style
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setSimple(boolean simple) {
+ checkWidget();
+ if (this.simple != simple) {
+ this.simple = simple;
+ Rectangle rectBefore = getClientArea();
+ updateItems();
+ Rectangle rectAfter = getClientArea();
+ if (!rectBefore.equals(rectAfter)) {
+ notifyListeners(SWT.Resize, new Event());
+ }
+ redraw();
+ }
+}
+/**
+ * Sets the number of tabs that the CTabFolder should display
+ *
+ * @param single <code>true</code> if only the selected tab should be displayed otherwise, multiple tabs will be shown.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setSingle(boolean single) {
+ checkWidget();
+ if (this.single != single) {
+ this.single = single;
+ if (!single) {
+ for (int i = 0; i < items.length; i++) {
+ if (i != selectedIndex && items[i].closeImageState == NORMAL) {
+ items[i].closeImageState = NONE;
+ }
+ }
+ }
+ Rectangle rectBefore = getClientArea();
+ updateItems();
+ Rectangle rectAfter = getClientArea();
+ if (!rectBefore.equals(rectAfter)) {
+ notifyListeners(SWT.Resize, new Event());
+ }
+ redraw();
+ }
+}
+/**
+ * Specify a fixed height for the tab items. If no height is specified,
+ * the default height is the height of the text or the image, whichever
+ * is greater. Specifying a height of -1 will revert to the default height.
+ *
+ * @param height the pixel value of the height or -1
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if called with a height of less than 0</li>
+ * </ul>
+ */
+public void setTabHeight(int height) {
+ checkWidget();
+ if (height < -1) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ fixedTabHeight = height;
+ updateTabHeight(false);
+}
+/**
+ * Specify whether the tabs should appear along the top of the folder
+ * or along the bottom of the folder.
+ *
+ * @param position <code>SWT.TOP</code> for tabs along the top or <code>SWT.BOTTOM</code> for tabs along the bottom
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the position value is not either SWT.TOP or SWT.BOTTOM</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setTabPosition(int position) {
+ checkWidget();
+ if (position != SWT.TOP && position != SWT.BOTTOM) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (onBottom != (position == SWT.BOTTOM)) {
+ onBottom = position == SWT.BOTTOM;
+ borderTop = onBottom ? borderLeft : 0;
+ borderBottom = onBottom ? 0 : borderRight;
+ updateTabHeight(true);
+ Rectangle rectBefore = getClientArea();
+ updateItems();
+ Rectangle rectAfter = getClientArea();
+ if (!rectBefore.equals(rectAfter)) {
+ notifyListeners(SWT.Resize, new Event());
+ }
+ redraw();
+ }
+}
+/**
+ * Set the control that appears in the top right corner of the tab folder.
+ * Typically this is a close button or a composite with a Menu and close button.
+ * The topRight control is optional. Setting the top right control to null will
+ * remove it from the tab folder.
+ *
+ * @param control the control to be displayed in the top right corner or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this CTabFolder</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public void setTopRight(Control control) {
+ setTopRight(control, SWT.RIGHT);
+}
+/**
+ * Set the control that appears in the top right corner of the tab folder.
+ * Typically this is a close button or a composite with a Menu and close button.
+ * The topRight control is optional. Setting the top right control to null
+ * will remove it from the tab folder.
+ * <p>
+ * The alignment parameter sets the layout of the control in the tab area.
+ * <code>SWT.RIGHT</code> will cause the control to be positioned on the far
+ * right of the folder and it will have its default size. <code>SWT.FILL</code>
+ * will size the control to fill all the available space to the right of the
+ * last tab. If there is no available space, the control will not be visible.
+ * </p>
+ *
+ * @param control the control to be displayed in the top right corner or null
+ * @param alignment <code>SWT.RIGHT</code> or <code>SWT.FILL</code>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this CTabFolder</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setTopRight(Control control, int alignment) {
+ checkWidget();
+ if (alignment != SWT.RIGHT && alignment != SWT.FILL) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (control != null && control.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ topRight = control;
+ topRightAlignment = alignment;
+ if (updateItems()) redraw();
+}
+/**
+ * Specify whether the close button appears
+ * when the user hovers over an unselected tabs.
+ *
+ * @param visible <code>true</code> makes the close button appear
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setUnselectedCloseVisible(boolean visible) {
+ checkWidget();
+ if (showUnselectedClose == visible) return;
+ // display close button when mouse hovers
+ showUnselectedClose = visible;
+ updateItems();
+ redraw();
+}
+/**
+ * Specify whether the image appears on unselected tabs.
+ *
+ * @param visible <code>true</code> makes the image appear
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setUnselectedImageVisible(boolean visible) {
+ checkWidget();
+ if (showUnselectedImage == visible) return;
+ // display image on unselected items
+ showUnselectedImage = visible;
+ updateItems();
+ redraw();
+}
+/**
+ * Shows the item. If the item is already showing in the receiver,
+ * this method simply returns. Otherwise, the items are scrolled until
+ * the item is visible.
+ *
+ * @param item the item to be shown
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the item is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see CTabFolder#showSelection()
+ *
+ * @since 2.0
+ */
+public void showItem (CTabItem item) {
+ checkWidget();
+ if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ if (item.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ int index = indexOf(item);
+ if (index == -1) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ int idx = -1;
+ for (int i = 0; i < priority.length; i++) {
+ if (priority[i] == index) {
+ idx = i;
+ break;
+ }
+ }
+ if (mru) {
+ // move to front of mru order
+ int[] newPriority = new int[priority.length];
+ System.arraycopy(priority, 0, newPriority, 1, idx);
+ System.arraycopy(priority, idx+1, newPriority, idx+1, priority.length - idx - 1);
+ newPriority[0] = index;
+ priority = newPriority;
+ }
+ if (item.isShowing()) return;
+ updateItems(index);
+ redrawTabs();
+}
+void showList (Rectangle rect) {
+ if (items.length == 0 || !showChevron) return;
+ if (showMenu == null || showMenu.isDisposed()) {
+ showMenu = new Menu(this);
+ } else {
+ MenuItem[] items = showMenu.getItems();
+ for (int i = 0; i < items.length; i++) {
+ items[i].dispose();
+ }
+ }
+ final String id = "CTabFolder_showList_Index"; //$NON-NLS-1$
+ for (int i = 0; i < items.length; i++) {
+ CTabItem tab = items[i];
+ if (tab.showing) continue;
+ MenuItem item = new MenuItem(showMenu, SWT.NONE);
+ item.setText(tab.getText());
+ item.setImage(tab.getImage());
+ item.setData(id, tab);
+ item.addSelectionListener(new SelectionAdapter() {
+ public void widgetSelected(SelectionEvent e) {
+ MenuItem menuItem = (MenuItem)e.widget;
+ int index = indexOf((CTabItem)menuItem.getData(id));
+ CTabFolder.this.setSelection(index, true);
+ }
+ });
+ }
+ int x = rect.x;
+ int y = rect.y + rect.height;
+ Point location = getDisplay().map(this, null, x, y);
+ showMenu.setLocation(location.x, location.y);
+ showMenu.setVisible(true);
+}
+/**
+ * Shows the selection. If the selection is already showing in the receiver,
+ * this method simply returns. Otherwise, the items are scrolled until
+ * the selection is visible.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see CTabFolder#showItem(CTabItem)
+ *
+ * @since 2.0
+ */
+public void showSelection () {
+ checkWidget ();
+ if (selectedIndex != -1) {
+ showItem(getSelection());
+ }
+}
+
+void _setToolTipText (int x, int y) {
+ String oldTip = getToolTipText();
+ String newTip = _getToolTip(x, y);
+ if (newTip == null || !newTip.equals(oldTip)) {
+ setToolTipText(newTip);
+ }
+}
+
+boolean updateItems() {
+ return updateItems(selectedIndex);
+}
+
+boolean updateItems(int showIndex) {
+ if (!single && !mru && showIndex != -1) {
+ // make sure selected item will be showing
+ int firstIndex = showIndex;
+ if (priority[0] < showIndex) {
+ int maxWidth = getRightItemEdge() - borderLeft;
+ if (!simple) maxWidth -= curveWidth - 2*curveIndent;
+ int width = 0;
+ int[] widths = new int[items.length];
+ GC gc = new GC(this);
+ for (int i = priority[0]; i <= showIndex; i++) {
+ widths[i] = items[i].preferredWidth(gc, i == selectedIndex, true);
+ width += widths[i];
+ if (width > maxWidth) break;
+ }
+ if (width > maxWidth) {
+ width = 0;
+ for (int i = showIndex; i >= 0; i--) {
+ if (widths[i] == 0) widths[i] = items[i].preferredWidth(gc, i == selectedIndex, true);
+ width += widths[i];
+ if (width > maxWidth) break;
+ firstIndex = i;
+ }
+ } else {
+ firstIndex = priority[0];
+ for (int i = showIndex + 1; i < items.length; i++) {
+ widths[i] = items[i].preferredWidth(gc, i == selectedIndex, true);
+ width += widths[i];
+ if (width >= maxWidth) break;
+ }
+ if (width < maxWidth) {
+ for (int i = priority[0] - 1; i >= 0; i--) {
+ if (widths[i] == 0) widths[i] = items[i].preferredWidth(gc, i == selectedIndex, true);
+ width += widths[i];
+ if (width > maxWidth) break;
+ firstIndex = i;
+ }
+ }
+ }
+ gc.dispose();
+ }
+ if (firstIndex != priority[0]) {
+ int index = 0;
+ for (int i = firstIndex; i < items.length; i++) {
+ priority[index++] = i;
+ }
+ for (int i = 0; i < firstIndex; i++) {
+ priority[index++] = i;
+ }
+ }
+ }
+
+ boolean oldShowChevron = showChevron;
+ boolean changed = setItemSize();
+ changed |= setItemLocation();
+ setButtonBounds();
+ changed |= showChevron != oldShowChevron;
+ if (changed && getToolTipText() != null) {
+ Point pt = getDisplay().getCursorLocation();
+ pt = toControl(pt);
+ _setToolTipText(pt.x, pt.y);
+ }
+ return changed;
+}
+boolean updateTabHeight(boolean force){
+ int style = getStyle();
+ if (fixedTabHeight == 0 && (style & SWT.FLAT) != 0 && (style & SWT.BORDER) == 0) highlight_header = 0;
+ int oldHeight = tabHeight;
+ if (fixedTabHeight != SWT.DEFAULT) {
+ tabHeight = fixedTabHeight == 0 ? 0 : fixedTabHeight + 1; // +1 for line drawn across top of tab
+ } else {
+ int tempHeight = 0;
+ GC gc = new GC(this);
+ if (items.length == 0) {
+ tempHeight = gc.textExtent("Default", CTabItem.FLAGS).y + CTabItem.TOP_MARGIN + CTabItem.BOTTOM_MARGIN; //$NON-NLS-1$
+ } else {
+ for (int i=0; i < items.length; i++) {
+ tempHeight = Math.max(tempHeight, items[i].preferredHeight(gc));
+ }
+ }
+ gc.dispose();
+ tabHeight = tempHeight;
+ }
+ if (!force && tabHeight == oldHeight) return false;
+
+ oldSize = null;
+ if (onBottom) {
+ int d = tabHeight - 12;
+ curve = new int[]{0,13+d, 0,12+d, 2,12+d, 3,11+d, 5,11+d, 6,10+d, 7,10+d, 9,8+d, 10,8+d,
+ 11,7+d, 11+d,7,
+ 12+d,6, 13+d,6, 15+d,4, 16+d,4, 17+d,3, 19+d,3, 20+d,2, 22+d,2, 23+d,1};
+ curveWidth = 26+d;
+ curveIndent = curveWidth/3;
+ } else {
+ int d = tabHeight - 12;
+ curve = new int[]{0,0, 0,1, 2,1, 3,2, 5,2, 6,3, 7,3, 9,5, 10,5,
+ 11,6, 11+d,6+d,
+ 12+d,7+d, 13+d,7+d, 15+d,9+d, 16+d,9+d, 17+d,10+d, 19+d,10+d, 20+d,11+d, 22+d,11+d, 23+d,12+d};
+ curveWidth = 26+d;
+ curveIndent = curveWidth/3;
+
+ //this could be static but since values depend on curve, better to keep in one place
+ topCurveHighlightStart = new int[] {
+ 0, 2, 1, 2, 2, 2,
+ 3, 3, 4, 3, 5, 3,
+ 6, 4, 7, 4,
+ 8, 5,
+ 9, 6, 10, 6};
+
+ //also, by adding in 'd' here we save some math cost when drawing the curve
+ topCurveHighlightEnd = new int[] {
+ 10+d, 6+d,
+ 11+d, 7+d,
+ 12+d, 8+d, 13+d, 8+d,
+ 14+d, 9+d,
+ 15+d, 10+d, 16+d, 10+d,
+ 17+d, 11+d, 18+d, 11+d, 19+d, 11+d,
+ 20+d, 12+d, 21+d, 12+d, 22+d, 12+d };
+ }
+ notifyListeners(SWT.Resize, new Event());
+ return true;
+}
+String _getToolTip(int x, int y) {
+ if (showMin && minRect.contains(x, y)) return minimized ? SWT.getMessage("SWT_Restore") : SWT.getMessage("SWT_Minimize"); //$NON-NLS-1$ //$NON-NLS-2$
+ if (showMax && maxRect.contains(x, y)) return maximized ? SWT.getMessage("SWT_Restore") : SWT.getMessage("SWT_Maximize"); //$NON-NLS-1$ //$NON-NLS-2$
+ if (showChevron && chevronRect.contains(x, y)) return SWT.getMessage("SWT_ShowList"); //$NON-NLS-1$
+ CTabItem item = getItem(new Point (x, y));
+ if (item == null) return null;
+ if (!item.showing) return null;
+ if ((showClose || item.showClose) && item.closeRect.contains(x, y)) {
+ return SWT.getMessage("SWT_Close"); //$NON-NLS-1$
+ }
+ return item.getToolTipText();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Adapter.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Adapter.java
new file mode 100644
index 0000000000..82c0212709
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Adapter.java
@@ -0,0 +1,83 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+/**
+ * This adapter class provides default implementations for the
+ * methods described by the <code>CTabFolder2Listener</code> interface.
+ * <p>
+ * Classes that wish to deal with <code>CTabFolderEvent</code>s can
+ * extend this class and override only the methods which they are
+ * interested in.
+ * </p>
+ *
+ * @see CTabFolder2Listener
+ * @see CTabFolderEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.0
+ */
+public class CTabFolder2Adapter implements CTabFolder2Listener {
+
+/**
+ * Sent when the user clicks on the close button of an item in the CTabFolder. The item being closed is specified
+ * in the event.item field. Setting the event.doit field to false will stop the CTabItem from closing.
+ * When the CTabItem is closed, it is disposed. The contents of the CTabItem (see CTabItem#setControl) will be
+ * made not visible when the CTabItem is closed.
+ * <p>
+ * The default behaviour is to close the CTabItem.
+ * </p>
+ *
+ * @param event an event indicating the item being closed
+ */
+public void close(CTabFolderEvent event){}
+
+/**
+ * Sent when the user clicks on the minimize button of a CTabFolder.
+ * <p>
+ * The default behaviour is to do nothing.
+ * </p>
+ *
+ * @param event an event containing information about the minimize
+ */
+public void minimize(CTabFolderEvent event){}
+
+/**
+ * Sent when the user clicks on the maximize button of a CTabFolder.
+ * <p>
+ * The default behaviour is to do nothing.
+ * </p>
+ *
+ * @param event an event containing information about the maximize
+ */
+public void maximize(CTabFolderEvent event){}
+
+/**
+ * Sent when the user clicks on the restore button of a CTabFolder.
+ * <p>
+ * The default behaviour is to do nothing.
+ * </p>
+ *
+ * @param event an event containing information about the restore
+ */
+public void restore(CTabFolderEvent event){}
+
+/**
+ * Sent when the user clicks on the chevron button of a CTabFolder.
+ * <p>
+ * The default behaviour is to show a list of items that are not currently
+ * visible and to change the selection based on the item selected from the list.
+ * </p>
+ *
+ * @param event an event containing information about the show list
+ */
+public void showList(CTabFolderEvent event){}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Listener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Listener.java
new file mode 100644
index 0000000000..7e2e17862f
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder2Listener.java
@@ -0,0 +1,112 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.*;
+
+/**
+ * Classes which implement this interface provide methods
+ * that deal with the events that are generated by the CTabFolder
+ * control.
+ * <p>
+ * After creating an instance of a class that implements
+ * this interface it can be added to a CTabFolder using the
+ * <code>addCTabFolder2Listener</code> method and removed using
+ * the <code>removeCTabFolder2Listener</code> method. When
+ * events occurs in a CTabFolder the appropriate method
+ * will be invoked.
+ * </p>
+ *
+ * @see CTabFolder2Adapter
+ * @see CTabFolderEvent
+ *
+ * @since 3.0
+ */
+public interface CTabFolder2Listener extends SWTEventListener {
+
+/**
+ * Sent when the user clicks on the close button of an item in the CTabFolder.
+ * The item being closed is specified in the event.item field.
+ * Setting the event.doit field to false will stop the CTabItem from closing.
+ * When the CTabItem is closed, it is disposed. The contents of the
+ * CTabItem (see CTabItem.setControl) will be made not visible when
+ * the CTabItem is closed.
+ *
+ * @param event an event indicating the item being closed
+ */
+public void close(CTabFolderEvent event);
+
+/**
+ * Sent when the user clicks on the minimize button of a CTabFolder.
+ * The state of the CTabFolder does not change automatically - it
+ * is up to the application to change the state of the CTabFolder
+ * in response to this event using CTabFolder.setMinimized(true).
+ *
+ * @param event an event containing information about the minimize
+ *
+ * @see CTabFolder#getMinimized()
+ * @see CTabFolder#setMinimized(boolean)
+ * @see CTabFolder#setMinimizeVisible(boolean)
+ */
+public void minimize(CTabFolderEvent event);
+
+/**
+ * Sent when the user clicks on the maximize button of a CTabFolder.
+ * The state of the CTabFolder does not change automatically - it
+ * is up to the application to change the state of the CTabFolder
+ * in response to this event using CTabFolder.setMaximized(true).
+ *
+ * @param event an event containing information about the maximize
+ *
+ * @see CTabFolder#getMaximized()
+ * @see CTabFolder#setMaximized(boolean)
+ * @see CTabFolder#setMaximizeVisible(boolean)
+ */
+public void maximize(CTabFolderEvent event);
+
+/**
+ * Sent when the user clicks on the restore button of a CTabFolder.
+ * This event is sent either to restore the CTabFolder from the
+ * minimized state or from the maximized state. To determine
+ * which restore is requested, use CTabFolder.getMinimized() or
+ * CTabFolder.getMaximized() to determine the current state.
+ * The state of the CTabFolder does not change automatically - it
+ * is up to the application to change the state of the CTabFolder
+ * in response to this event using CTabFolder.setMaximized(false)
+ * or CTabFolder.setMinimized(false).
+ *
+ * @param event an event containing information about the restore
+ *
+ * @see CTabFolder#getMinimized()
+ * @see CTabFolder#getMaximized()
+ * @see CTabFolder#setMinimized(boolean)
+ * @see CTabFolder#setMinimizeVisible(boolean)
+ * @see CTabFolder#setMaximized(boolean)
+ * @see CTabFolder#setMaximizeVisible(boolean)
+ */
+public void restore(CTabFolderEvent event);
+
+/**
+ * Sent when the user clicks on the chevron button of the CTabFolder.
+ * A chevron appears in the CTabFolder when there are more tabs
+ * than can be displayed at the current widget size. To select a
+ * tab that is not currently visible, the user clicks on the
+ * chevron and selects a tab item from a list. By default, the
+ * CTabFolder provides a list of all the items that are not currently
+ * visible, however, the application can provide its own list by setting
+ * the event.doit field to <code>false</code> and displaying a selection list.
+ *
+ * @param event an event containing information about the show list
+ *
+ * @see CTabFolder#setSelection(CTabItem)
+ */
+public void showList(CTabFolderEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderAdapter.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderAdapter.java
new file mode 100755
index 0000000000..85f210a938
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderAdapter.java
@@ -0,0 +1,24 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+/**
+ * This adapter class provides a default implementation for the
+ * method described by the <code>CTabFolderListener</code> interface.
+ *
+ * @see CTabFolderListener
+ * @see CTabFolderEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class CTabFolderAdapter implements CTabFolderListener {
+ public void itemClosed(CTabFolderEvent event){}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderEvent.java
new file mode 100755
index 0000000000..99394bf37a
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderEvent.java
@@ -0,0 +1,92 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This event is sent when an event is generated in the CTabFolder.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class CTabFolderEvent extends TypedEvent {
+ /**
+ * The tab item for the operation.
+ */
+ public Widget item;
+
+ /**
+ * A flag indicating whether the operation should be allowed.
+ * Setting this field to <code>false</code> will cancel the operation.
+ * Applies to the close and showList events.
+ */
+ public boolean doit;
+
+ /**
+ * The widget-relative, x coordinate of the chevron button
+ * at the time of the event. Applies to the showList event.
+ *
+ * @since 3.0
+ */
+ public int x;
+ /**
+ * The widget-relative, y coordinate of the chevron button
+ * at the time of the event. Applies to the showList event.
+ *
+ * @since 3.0
+ */
+ public int y;
+ /**
+ * The width of the chevron button at the time of the event.
+ * Applies to the showList event.
+ *
+ * @since 3.0
+ */
+ public int width;
+ /**
+ * The height of the chevron button at the time of the event.
+ * Applies to the showList event.
+ *
+ * @since 3.0
+ */
+ public int height;
+
+ static final long serialVersionUID = 3760566386225066807L;
+
+/**
+ * Constructs a new instance of this class.
+ *
+ * @param w the widget that fired the event
+ */
+CTabFolderEvent(Widget w) {
+ super(w);
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the event
+ */
+public String toString() {
+ String string = super.toString ();
+ return string.substring (0, string.length() - 1) // remove trailing '}'
+ + " item=" + item
+ + " doit=" + doit
+ + " x=" + x
+ + " y=" + y
+ + " width=" + width
+ + " height=" + height
+ + "}";
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java
new file mode 100644
index 0000000000..e01fac6e55
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for CTabFolder
+ *
+ * @see CTabFolder
+ */
+class CTabFolderLayout extends Layout {
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ CTabFolder folder = (CTabFolder)composite;
+ CTabItem[] items = folder.items;
+ // preferred width of tab area to show all tabs
+ int tabW = 0;
+ GC gc = new GC(folder);
+ for (int i = 0; i < items.length; i++) {
+ if (folder.single) {
+ tabW = Math.max(tabW, items[i].preferredWidth(gc, true, false));
+ } else {
+ tabW += items[i].preferredWidth(gc, i == folder.selectedIndex, false);
+ }
+ }
+ gc.dispose();
+ tabW += 3;
+ if (folder.showMax) tabW += CTabFolder.BUTTON_SIZE;
+ if (folder.showMin) tabW += CTabFolder.BUTTON_SIZE;
+ if (folder.single) tabW += 3*CTabFolder.BUTTON_SIZE/2; //chevron
+ if (folder.topRight != null) {
+ Point pt = folder.topRight.computeSize(SWT.DEFAULT, folder.tabHeight, flushCache);
+ tabW += 3 + pt.x;
+ }
+ if (!folder.single && !folder.simple) tabW += folder.curveWidth - 2*folder.curveIndent;
+
+ int controlW = 0;
+ int controlH = 0;
+ // preferred size of controls in tab items
+ for (int i = 0; i < items.length; i++) {
+ Control control = items[i].getControl();
+ if (control != null && !control.isDisposed()){
+ Point size = control.computeSize (wHint, hHint, flushCache);
+ controlW = Math.max (controlW, size.x);
+ controlH = Math.max (controlH, size.y);
+ }
+ }
+
+ int minWidth = Math.max(tabW, controlW);
+ int minHeight = (folder.minimized) ? 0 : controlH;
+ if (minWidth == 0) minWidth = CTabFolder.DEFAULT_WIDTH;
+ if (minHeight == 0) minHeight = CTabFolder.DEFAULT_HEIGHT;
+
+ if (wHint != SWT.DEFAULT) minWidth = wHint;
+ if (hHint != SWT.DEFAULT) minHeight = hHint;
+
+ return new Point (minWidth, minHeight);
+}
+protected boolean flushCache(Control control) {
+ return true;
+}
+protected void layout(Composite composite, boolean flushCache) {
+ CTabFolder folder = (CTabFolder)composite;
+ // resize content
+ if (folder.selectedIndex != -1) {
+ Control control = folder.items[folder.selectedIndex].getControl();
+ if (control != null && !control.isDisposed()) {
+ control.setBounds(folder.getClientArea());
+ }
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderListener.java
new file mode 100755
index 0000000000..4fdeab51fe
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderListener.java
@@ -0,0 +1,41 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.*;
+
+/**
+ * Classes which implement this interface provide a method
+ * that deals with events generated in the CTabFolder.
+ * <p>
+ * After creating an instance of a class that implements
+ * this interface it can be added to a CTabFolder using the
+ * <code>addCTabFolderListener</code> method and removed using
+ * the <code>removeCTabFolderListener</code> method. When a
+ * tab item is closed, the itemClosed method will be invoked.
+ * </p>
+ *
+ * @see CTabFolderEvent
+ */
+public interface CTabFolderListener extends SWTEventListener {
+
+/**
+ * Sent when the user clicks on the close button of an item in the CTabFolder. The item being closed is specified
+ * in the event.item field. Setting the event.doit field to false will stop the CTabItem from closing.
+ * When the CTabItem is closed, it is disposed. The contents of the CTabItem (see CTabItem.setControl) will be
+ * made not visible when the CTabItem is closed.
+ *
+ * @param event an event indicating the item being closed
+ *
+ * @see CTabItem#setControl
+ */
+public void itemClosed(CTabFolderEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabItem.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabItem.java
new file mode 100755
index 0000000000..ffe19d20e0
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabItem.java
@@ -0,0 +1,1053 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * Instances of this class represent a selectable user interface object
+ * that represent a page in a notebook widget.
+ *
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>SWT.CLOSE</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(none)</dd>
+ * </dl>
+ * <p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#ctabfolder">CTabFolder, CTabItem snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+public class CTabItem extends Item {
+ CTabFolder parent;
+ int x,y,width,height = 0;
+ Control control; // the tab page
+
+ String toolTipText;
+ String shortenedText;
+ int shortenedTextWidth;
+
+ // Appearance
+ Font font;
+ Image disabledImage;
+
+ Rectangle closeRect = new Rectangle(0, 0, 0, 0);
+ int closeImageState = CTabFolder.NONE;
+ boolean showClose = false;
+ boolean showing = false;
+
+ // internal constants
+ static final int TOP_MARGIN = 2;
+ static final int BOTTOM_MARGIN = 2;
+ static final int LEFT_MARGIN = 4;
+ static final int RIGHT_MARGIN = 4;
+ static final int INTERNAL_SPACING = 4;
+ static final int FLAGS = SWT.DRAW_TRANSPARENT | SWT.DRAW_MNEMONIC;
+ static final String ELLIPSIS = "..."; //$NON-NLS-1$ // could use the ellipsis glyph on some platforms "\u2026"
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>CTabFolder</code>) and a style value
+ * describing its behavior and appearance. The item is added
+ * to the end of the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a CTabFolder which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public CTabItem (CTabFolder parent, int style) {
+ this(parent, style, parent.getItemCount());
+}
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>CTabFolder</code>), a style value
+ * describing its behavior and appearance, and the index
+ * at which to place it in the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a CTabFolder which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ * @param index the zero-relative index to store the receiver in its parent
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public CTabItem (CTabFolder parent, int style, int index) {
+ super (parent, style);
+ showClose = (style & SWT.CLOSE) != 0;
+ parent.createItem (this, index);
+}
+
+/*
+ * Return whether to use ellipses or just truncate labels
+ */
+boolean useEllipses() {
+ return parent.simple;
+}
+
+String shortenText(GC gc, String text, int width) {
+ return useEllipses()
+ ? shortenText(gc, text, width, ELLIPSIS)
+ : shortenText(gc, text, width, ""); //$NON-NLS-1$
+}
+
+String shortenText(GC gc, String text, int width, String ellipses) {
+ if (gc.textExtent(text, FLAGS).x <= width) return text;
+ int ellipseWidth = gc.textExtent(ellipses, FLAGS).x;
+ int length = text.length();
+ TextLayout layout = new TextLayout(getDisplay());
+ layout.setText(text);
+ int end = layout.getPreviousOffset(length, SWT.MOVEMENT_CLUSTER);
+ while (end > 0) {
+ text = text.substring(0, end);
+ int l = gc.textExtent(text, FLAGS).x;
+ if (l + ellipseWidth <= width) {
+ break;
+ }
+ end = layout.getPreviousOffset(end, SWT.MOVEMENT_CLUSTER);
+ }
+ layout.dispose();
+ return end == 0 ? text.substring(0, 1) : text + ellipses;
+}
+
+public void dispose() {
+ if (isDisposed ()) return;
+ //if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
+ parent.destroyItem(this);
+ super.dispose();
+ parent = null;
+ control = null;
+ toolTipText = null;
+ shortenedText = null;
+ font = null;
+}
+void drawClose(GC gc) {
+ if (closeRect.width == 0 || closeRect.height == 0) return;
+ Display display = getDisplay();
+
+ // draw X 9x9
+ int indent = Math.max(1, (CTabFolder.BUTTON_SIZE-9)/2);
+ int x = closeRect.x + indent;
+ int y = closeRect.y + indent;
+ y += parent.onBottom ? -1 : 1;
+
+ Color closeBorder = display.getSystemColor(CTabFolder.BUTTON_BORDER);
+ switch (closeImageState) {
+ case CTabFolder.NORMAL: {
+ int[] shape = new int[] {x,y, x+2,y, x+4,y+2, x+5,y+2, x+7,y, x+9,y,
+ x+9,y+2, x+7,y+4, x+7,y+5, x+9,y+7, x+9,y+9,
+ x+7,y+9, x+5,y+7, x+4,y+7, x+2,y+9, x,y+9,
+ x,y+7, x+2,y+5, x+2,y+4, x,y+2};
+ gc.setBackground(display.getSystemColor(CTabFolder.BUTTON_FILL));
+ gc.fillPolygon(shape);
+ gc.setForeground(closeBorder);
+ gc.drawPolygon(shape);
+ break;
+ }
+ case CTabFolder.HOT: {
+ int[] shape = new int[] {x,y, x+2,y, x+4,y+2, x+5,y+2, x+7,y, x+9,y,
+ x+9,y+2, x+7,y+4, x+7,y+5, x+9,y+7, x+9,y+9,
+ x+7,y+9, x+5,y+7, x+4,y+7, x+2,y+9, x,y+9,
+ x,y+7, x+2,y+5, x+2,y+4, x,y+2};
+ gc.setBackground(parent.getFillColor());
+ gc.fillPolygon(shape);
+ gc.setForeground(closeBorder);
+ gc.drawPolygon(shape);
+ break;
+ }
+ case CTabFolder.SELECTED: {
+ int[] shape = new int[] {x+1,y+1, x+3,y+1, x+5,y+3, x+6,y+3, x+8,y+1, x+10,y+1,
+ x+10,y+3, x+8,y+5, x+8,y+6, x+10,y+8, x+10,y+10,
+ x+8,y+10, x+6,y+8, x+5,y+8, x+3,y+10, x+1,y+10,
+ x+1,y+8, x+3,y+6, x+3,y+5, x+1,y+3};
+ gc.setBackground(parent.getFillColor());
+ gc.fillPolygon(shape);
+ gc.setForeground(closeBorder);
+ gc.drawPolygon(shape);
+ break;
+ }
+ case CTabFolder.NONE: {
+ int[] shape = new int[] {x,y, x+10,y, x+10,y+10, x,y+10};
+ if (parent.gradientColors != null && !parent.gradientVertical) {
+ parent.drawBackground(gc, shape, false);
+ } else {
+ Color defaultBackground = parent.getBackground();
+ Color[] colors = parent.gradientColors;
+ int[] percents = parent.gradientPercents;
+ boolean vertical = parent.gradientVertical;
+ parent.drawBackground(gc, shape, x, y, 10, 10, defaultBackground, null, colors, percents, vertical);
+ }
+ break;
+ }
+ }
+}
+void drawSelected(GC gc ) {
+ Point size = parent.getSize();
+ int rightEdge = Math.min (x + width, parent.getRightItemEdge());
+
+ // Draw selection border across all tabs
+ int xx = parent.borderLeft;
+ int yy = parent.onBottom ? size.y - parent.borderBottom - parent.tabHeight - parent.highlight_header : parent.borderTop + parent.tabHeight + 1;
+ int ww = size.x - parent.borderLeft - parent.borderRight;
+ int hh = parent.highlight_header - 1;
+ int[] shape = new int[] {xx,yy, xx+ww,yy, xx+ww,yy+hh, xx,yy+hh};
+ if (parent.selectionGradientColors != null && !parent.selectionGradientVertical) {
+ parent.drawBackground(gc, shape, true);
+ } else {
+ gc.setBackground(parent.selectionBackground);
+ gc.fillRectangle(xx, yy, ww, hh);
+ }
+
+ if (parent.single) {
+ if (!showing) return;
+ } else {
+ // if selected tab scrolled out of view or partially out of view
+ // just draw bottom line
+ if (!showing){
+ int x1 = Math.max(0, parent.borderLeft - 1);
+ int y1 = (parent.onBottom) ? y - 1 : y + height;
+ int x2 = size.x - parent.borderRight;
+ gc.setForeground(getDisplay().getSystemColor(CTabFolder.BORDER1_COLOR));
+ gc.drawLine(x1, y1, x2, y1);
+ return;
+ }
+
+ // draw selected tab background and outline
+ shape = null;
+ if (this.parent.onBottom) {
+ int[] left = parent.simple ? CTabFolder.SIMPLE_BOTTOM_LEFT_CORNER : CTabFolder.BOTTOM_LEFT_CORNER;
+ int[] right = parent.simple ? CTabFolder.SIMPLE_BOTTOM_RIGHT_CORNER : parent.curve;
+ if (parent.borderLeft == 0 && parent.indexOf(this) == parent.firstIndex) {
+ left = new int[]{x, y+height};
+ }
+ shape = new int[left.length+right.length+8];
+ int index = 0;
+ shape[index++] = x; // first point repeated here because below we reuse shape to draw outline
+ shape[index++] = y - 1;
+ shape[index++] = x;
+ shape[index++] = y - 1;
+ for (int i = 0; i < left.length/2; i++) {
+ shape[index++] = x + left[2*i];
+ shape[index++] = y + height + left[2*i+1] - 1;
+ }
+ for (int i = 0; i < right.length/2; i++) {
+ shape[index++] = parent.simple ? rightEdge - 1 + right[2*i] : rightEdge - parent.curveIndent + right[2*i];
+ shape[index++] = parent.simple ? y + height + right[2*i+1] - 1 : y + right[2*i+1] - 2;
+ }
+ shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+ shape[index++] = y - 1;
+ shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+ shape[index++] = y - 1;
+ } else {
+ int[] left = parent.simple ? CTabFolder.SIMPLE_TOP_LEFT_CORNER : CTabFolder.TOP_LEFT_CORNER;
+ int[] right = parent.simple ? CTabFolder.SIMPLE_TOP_RIGHT_CORNER : parent.curve;
+ if (parent.borderLeft == 0 && parent.indexOf(this) == parent.firstIndex) {
+ left = new int[]{x, y};
+ }
+ shape = new int[left.length+right.length+8];
+ int index = 0;
+ shape[index++] = x; // first point repeated here because below we reuse shape to draw outline
+ shape[index++] = y + height + 1;
+ shape[index++] = x;
+ shape[index++] = y + height + 1;
+ for (int i = 0; i < left.length/2; i++) {
+ shape[index++] = x + left[2*i];
+ shape[index++] = y + left[2*i+1];
+ }
+ for (int i = 0; i < right.length/2; i++) {
+ shape[index++] = parent.simple ? rightEdge - 1 + right[2*i] : rightEdge - parent.curveIndent + right[2*i];
+ shape[index++] = y + right[2*i+1];
+ }
+ shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+ shape[index++] = y + height + 1;
+ shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+ shape[index++] = y + height + 1;
+ }
+
+ Rectangle clipping = gc.getClipping();
+ Rectangle bounds = getBounds();
+ bounds.height += 1;
+ if (parent.onBottom) bounds.y -= 1;
+ boolean tabInPaint = clipping.intersects(bounds);
+
+ if (tabInPaint) {
+ // fill in tab background
+ if (parent.selectionGradientColors != null && !parent.selectionGradientVertical) {
+ parent.drawBackground(gc, shape, true);
+ } else {
+ Color defaultBackground = parent.selectionBackground;
+ Image image = parent.selectionBgImage;
+ Color[] colors = parent.selectionGradientColors;
+ int[] percents = parent.selectionGradientPercents;
+ boolean vertical = parent.selectionGradientVertical;
+ xx = x;
+ yy = parent.onBottom ? y -1 : y + 1;
+ ww = width;
+ hh = height;
+ if (!parent.single && !parent.simple) ww += parent.curveWidth - parent.curveIndent;
+ parent.drawBackground(gc, shape, xx, yy, ww, hh, defaultBackground, image, colors, percents, vertical);
+ }
+ }
+
+ //Highlight MUST be drawn before the outline so that outline can cover it in the right spots (start of swoop)
+ //otherwise the curve looks jagged
+ drawHighlight(gc, rightEdge);
+
+ // draw outline
+ shape[0] = Math.max(0, parent.borderLeft - 1);
+ if (parent.borderLeft == 0 && parent.indexOf(this) == parent.firstIndex) {
+ shape[1] = parent.onBottom ? y + height - 1 : y;
+ shape[5] = shape[3] = shape[1];
+ }
+ shape[shape.length - 2] = size.x - parent.borderRight + 1;
+ for (int i = 0; i < shape.length/2; i++) {
+ if (shape[2*i + 1] == y + height + 1) shape[2*i + 1] -= 1;
+ }
+ RGB inside = parent.selectionBackground.getRGB();
+ if (parent.selectionBgImage != null ||
+ (parent.selectionGradientColors != null && parent.selectionGradientColors.length > 1)) {
+ inside = null;
+ }
+ RGB outside = parent.getBackground().getRGB();
+ if (parent.gradientColors != null && parent.gradientColors.length > 1) {
+ outside = null;
+ }
+ Color borderColor = getDisplay().getSystemColor(CTabFolder.BORDER1_COLOR);
+ parent.antialias(shape, borderColor.getRGB(), inside, outside, gc);
+ gc.setForeground(borderColor);
+ gc.drawPolyline(shape);
+
+ if (!tabInPaint) return;
+ }
+
+ // draw Image
+ int xDraw = x + LEFT_MARGIN;
+ if (parent.single && (parent.showClose || showClose)) xDraw += CTabFolder.BUTTON_SIZE;
+ Image image = getImage();
+ if (image != null) {
+ Rectangle imageBounds = image.getBounds();
+ // only draw image if it won't overlap with close button
+ int maxImageWidth = rightEdge - xDraw - RIGHT_MARGIN;
+ if (!parent.single && closeRect.width > 0) maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+ if (imageBounds.width < maxImageWidth) {
+ int imageX = xDraw;
+ int imageY = y + (height - imageBounds.height) / 2;
+ imageY += parent.onBottom ? -1 : 1;
+ gc.drawImage(image, imageX, imageY);
+ xDraw += imageBounds.width + INTERNAL_SPACING;
+ }
+ }
+
+ // draw Text
+ int textWidth = rightEdge - xDraw - RIGHT_MARGIN;
+ if (!parent.single && closeRect.width > 0) textWidth -= closeRect.width + INTERNAL_SPACING;
+ if (textWidth > 0) {
+ Font gcFont = gc.getFont();
+ gc.setFont(font == null ? parent.getFont() : font);
+
+ if (shortenedText == null || shortenedTextWidth != textWidth) {
+ shortenedText = shortenText(gc, getText(), textWidth);
+ shortenedTextWidth = textWidth;
+ }
+ Point extent = gc.textExtent(shortenedText, FLAGS);
+ int textY = y + (height - extent.y) / 2;
+ textY += parent.onBottom ? -1 : 1;
+
+ gc.setForeground(parent.selectionForeground);
+ gc.drawText(shortenedText, xDraw, textY, FLAGS);
+ gc.setFont(gcFont);
+
+ // draw a Focus rectangle
+ if (parent.isFocusControl()) {
+ Display display = getDisplay();
+ if (parent.simple || parent.single) {
+ gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+ gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
+ gc.drawFocus(xDraw-1, textY-1, extent.x+2, extent.y+2);
+ } else {
+ gc.setForeground(display.getSystemColor(CTabFolder.BUTTON_BORDER));
+ gc.drawLine(xDraw, textY+extent.y+1, xDraw+extent.x+1, textY+extent.y+1);
+ }
+ }
+ }
+ if (parent.showClose || showClose) drawClose(gc);
+}
+
+/*
+ * Draw a highlight effect along the left, top, and right edges of the tab.
+ * Only for curved tabs, on top.
+ * Do not draw if insufficient colors.
+ */
+void drawHighlight(GC gc, int rightEdge) {
+ //only draw for curvy tabs and only draw for top tabs
+ if(parent.simple || this.parent.onBottom)
+ return;
+
+ if(parent.selectionHighlightGradientBegin == null)
+ return;
+
+ Color[] gradients = parent.selectionHighlightGradientColorsCache;
+ if(gradients == null)
+ return;
+ int gradientsSize = gradients.length;
+ if(gradientsSize == 0)
+ return; //shouldn't happen but just to be tidy
+
+ gc.setForeground(gradients[0]);
+
+ //draw top horizontal line
+ gc.drawLine(
+ CTabFolder.TOP_LEFT_CORNER_HILITE[0] + x + 1, //rely on fact that first pair is top/right of curve
+ 1 + y,
+ rightEdge - parent.curveIndent,
+ 1 + y);
+
+ int[] leftHighlightCurve = CTabFolder.TOP_LEFT_CORNER_HILITE;
+
+ int d = parent.tabHeight - parent.topCurveHighlightEnd.length /2;
+
+ int lastX = 0;
+ int lastY = 0;
+ int lastColorIndex = 0;
+
+ //draw upper left curve highlight
+ for (int i = 0; i < leftHighlightCurve.length /2; i++) {
+ int rawX = leftHighlightCurve[i * 2];
+ int rawY = leftHighlightCurve[i * 2 + 1];
+ lastX = rawX + x;
+ lastY = rawY + y;
+ lastColorIndex = rawY - 1;
+ gc.setForeground(gradients[lastColorIndex]);
+ gc.drawPoint(lastX, lastY);
+ }
+ //draw left vertical line highlight
+ for(int i = lastColorIndex; i < gradientsSize; i++) {
+ gc.setForeground(gradients[i]);
+ gc.drawPoint(lastX, 1 + lastY++);
+ }
+
+ int rightEdgeOffset = rightEdge - parent.curveIndent;
+
+ //draw right swoop highlight up to diagonal portion
+ for (int i = 0; i < parent.topCurveHighlightStart.length /2; i++) {
+ int rawX = parent.topCurveHighlightStart[i * 2];
+ int rawY = parent.topCurveHighlightStart[i * 2 + 1];
+ lastX = rawX + rightEdgeOffset;
+ lastY = rawY + y;
+ lastColorIndex = rawY - 1;
+ if(lastColorIndex >= gradientsSize)
+ break; //can happen if tabs are unusually short and cut off the curve
+ gc.setForeground(gradients[lastColorIndex]);
+ gc.drawPoint(lastX, lastY);
+ }
+ //draw right diagonal line highlight
+ for(int i = lastColorIndex; i < lastColorIndex + d; i++) {
+ if(i >= gradientsSize)
+ break; //can happen if tabs are unusually short and cut off the curve
+ gc.setForeground(gradients[i]);
+ gc.drawPoint(1 + lastX++, 1 + lastY++);
+ }
+
+ //draw right swoop highlight from diagonal portion to end
+ for (int i = 0; i < parent.topCurveHighlightEnd.length /2; i++) {
+ int rawX = parent.topCurveHighlightEnd[i * 2]; //d is already encoded in this value
+ int rawY = parent.topCurveHighlightEnd[i * 2 + 1]; //d already encoded
+ lastX = rawX + rightEdgeOffset;
+ lastY = rawY + y;
+ lastColorIndex = rawY - 1;
+ if(lastColorIndex >= gradientsSize)
+ break; //can happen if tabs are unusually short and cut off the curve
+ gc.setForeground(gradients[lastColorIndex]);
+ gc.drawPoint(lastX, lastY);
+ }
+}
+
+/*
+ * Draw the unselected border for the receiver on the right.
+ *
+ * @param gc
+ */
+void drawRightUnselectedBorder(GC gc) {
+
+ int[] shape = null;
+ int startX = x + width - 1;
+
+ if (this.parent.onBottom) {
+ int[] right = parent.simple
+ ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+ : CTabFolder.BOTTOM_RIGHT_CORNER;
+
+ shape = new int[right.length + 2];
+ int index = 0;
+
+ for (int i = 0; i < right.length / 2; i++) {
+ shape[index++] = startX + right[2 * i];
+ shape[index++] = y + height + right[2 * i + 1] - 1;
+ }
+ shape[index++] = startX;
+ shape[index++] = y - 1;
+ } else {
+ int[] right = parent.simple
+ ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+ : CTabFolder.TOP_RIGHT_CORNER;
+
+ shape = new int[right.length + 2];
+ int index = 0;
+
+ for (int i = 0; i < right.length / 2; i++) {
+ shape[index++] = startX + right[2 * i];
+ shape[index++] = y + right[2 * i + 1];
+ }
+
+ shape[index++] = startX;
+ shape[index++] = y + height;
+
+ }
+
+ drawBorder(gc, shape);
+
+}
+
+/*
+ * Draw the border of the tab
+ *
+ * @param gc
+ * @param shape
+ */
+void drawBorder(GC gc, int[] shape) {
+
+ gc.setForeground(getDisplay().getSystemColor(CTabFolder.BORDER1_COLOR));
+ gc.drawPolyline(shape);
+}
+
+/*
+ * Draw the unselected border for the receiver on the left.
+ *
+ * @param gc
+ */
+void drawLeftUnselectedBorder(GC gc) {
+
+ int[] shape = null;
+ if (this.parent.onBottom) {
+ int[] left = parent.simple
+ ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+ : CTabFolder.BOTTOM_LEFT_CORNER;
+
+ shape = new int[left.length + 2];
+ int index = 0;
+ shape[index++] = x;
+ shape[index++] = y - 1;
+ for (int i = 0; i < left.length / 2; i++) {
+ shape[index++] = x + left[2 * i];
+ shape[index++] = y + height + left[2 * i + 1] - 1;
+ }
+ } else {
+ int[] left = parent.simple
+ ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+ : CTabFolder.TOP_LEFT_CORNER;
+
+ shape = new int[left.length + 2];
+ int index = 0;
+ shape[index++] = x;
+ shape[index++] = y + height;
+ for (int i = 0; i < left.length / 2; i++) {
+ shape[index++] = x + left[2 * i];
+ shape[index++] = y + left[2 * i + 1];
+ }
+
+ }
+
+ drawBorder(gc, shape);
+}
+
+void drawUnselected(GC gc) {
+ // Do not draw partial items
+ if (!showing) return;
+
+ Rectangle clipping = gc.getClipping();
+ Rectangle bounds = getBounds();
+ if (!clipping.intersects(bounds)) return;
+
+ // draw border
+ int index = parent.indexOf(this);
+
+ if (index > 0 && index < parent.selectedIndex)
+ drawLeftUnselectedBorder(gc);
+ // If it is the last one then draw a line
+ if (index > parent.selectedIndex)
+ drawRightUnselectedBorder(gc);
+
+ // draw Image
+ int xDraw = x + LEFT_MARGIN;
+ Image image = getImage();
+ if (image != null && parent.showUnselectedImage) {
+ Rectangle imageBounds = image.getBounds();
+ // only draw image if it won't overlap with close button
+ int maxImageWidth = x + width - xDraw - RIGHT_MARGIN;
+ if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+ maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+ }
+ if (imageBounds.width < maxImageWidth) {
+ int imageX = xDraw;
+ int imageHeight = imageBounds.height;
+ int imageY = y + (height - imageHeight) / 2;
+ imageY += parent.onBottom ? -1 : 1;
+ int imageWidth = imageBounds.width * imageHeight / imageBounds.height;
+ gc.drawImage(image,
+ imageBounds.x, imageBounds.y, imageBounds.width, imageBounds.height,
+ imageX, imageY, imageWidth, imageHeight);
+ xDraw += imageWidth + INTERNAL_SPACING;
+ }
+ }
+ // draw Text
+ int textWidth = x + width - xDraw - RIGHT_MARGIN;
+ if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+ textWidth -= closeRect.width + INTERNAL_SPACING;
+ }
+ if (textWidth > 0) {
+ Font gcFont = gc.getFont();
+ gc.setFont(font == null ? parent.getFont() : font);
+ if (shortenedText == null || shortenedTextWidth != textWidth) {
+ shortenedText = shortenText(gc, getText(), textWidth);
+ shortenedTextWidth = textWidth;
+ }
+ Point extent = gc.textExtent(shortenedText, FLAGS);
+ int textY = y + (height - extent.y) / 2;
+ textY += parent.onBottom ? -1 : 1;
+ gc.setForeground(parent.getForeground());
+ gc.drawText(shortenedText, xDraw, textY, FLAGS);
+ gc.setFont(gcFont);
+ }
+ // draw close
+ if (parent.showUnselectedClose && (parent.showClose || showClose)) drawClose(gc);
+}
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent.
+ *
+ * @return the receiver's bounding column rectangle
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Rectangle getBounds () {
+ //checkWidget();
+ int w = width;
+ if (!parent.simple && !parent.single && parent.indexOf(this) == parent.selectedIndex) w += parent.curveWidth - parent.curveIndent;
+ return new Rectangle(x, y, w, height);
+}
+/**
+* Gets the control that is displayed in the content area of the tab item.
+*
+* @return the control
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public Control getControl () {
+ checkWidget();
+ return control;
+}
+/**
+ * Get the image displayed in the tab if the tab is disabled.
+ *
+ * @return the disabled image or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated the disabled image is not used
+ */
+public Image getDisabledImage(){
+ checkWidget();
+ return disabledImage;
+}
+/**
+ * Returns the font that the receiver will use to paint textual information.
+ *
+ * @return the receiver's font
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public Font getFont() {
+ checkWidget();
+ if (font != null) return font;
+ return parent.getFont();
+}
+/**
+ * Returns the receiver's parent, which must be a <code>CTabFolder</code>.
+ *
+ * @return the receiver's parent
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public CTabFolder getParent () {
+ //checkWidget();
+ return parent;
+}
+/**
+ * Returns <code>true</code> to indicate that the receiver's close button should be shown.
+ * Otherwise return <code>false</code>. The initial value is defined by the style (SWT.CLOSE)
+ * that was used to create the receiver.
+ *
+ * @return <code>true</code> if the close button should be shown
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public boolean getShowClose() {
+ checkWidget();
+ return showClose;
+}
+/**
+ * Returns the receiver's tool tip text, or null if it has
+ * not been set.
+ *
+ * @return the receiver's tool tip text
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getToolTipText () {
+ checkWidget();
+ if (toolTipText == null && shortenedText != null) {
+ String text = getText();
+ if (!shortenedText.equals(text)) return text;
+ }
+ return toolTipText;
+}
+/**
+* Returns <code>true</code> if the item will be rendered in the visible area of the CTabFolder. Returns false otherwise.
+*
+* @return <code>true</code> if the item will be rendered in the visible area of the CTabFolder. Returns false otherwise.
+*
+* @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+* @since 3.0
+*/
+public boolean isShowing () {
+ checkWidget();
+ return showing;
+}
+void onPaint(GC gc, boolean isSelected) {
+ if (width == 0 || height == 0) return;
+ if (isSelected) {
+ drawSelected(gc);
+ } else {
+ drawUnselected(gc);
+ }
+}
+int preferredHeight(GC gc) {
+ Image image = getImage();
+ int h = (image == null) ? 0 : image.getBounds().height;
+ String text = getText();
+ if (font == null) {
+ h = Math.max(h, gc.textExtent(text, FLAGS).y);
+ } else {
+ Font gcFont = gc.getFont();
+ gc.setFont(font);
+ h = Math.max(h, gc.textExtent(text, FLAGS).y);
+ gc.setFont(gcFont);
+ }
+ return h + TOP_MARGIN + BOTTOM_MARGIN;
+}
+int preferredWidth(GC gc, boolean isSelected, boolean minimum) {
+ // NOTE: preferred width does not include the "dead space" caused
+ // by the curve.
+ if (isDisposed()) return 0;
+ int w = 0;
+ Image image = getImage();
+ if (image != null && (isSelected || parent.showUnselectedImage)) {
+ w += image.getBounds().width;
+ }
+ String text = null;
+ if (minimum) {
+ int minChars = parent.minChars;
+ text = minChars == 0 ? null : getText();
+ if (text != null && text.length() > minChars) {
+ if (useEllipses()) {
+ int end = minChars < ELLIPSIS.length() + 1 ? minChars : minChars - ELLIPSIS.length();
+ text = text.substring(0, end);
+ if (minChars > ELLIPSIS.length() + 1) text += ELLIPSIS;
+ } else {
+ int end = minChars;
+ text = text.substring(0, end);
+ }
+ }
+ } else {
+ text = getText();
+ }
+ if (text != null) {
+ if (w > 0) w += INTERNAL_SPACING;
+ if (font == null) {
+ w += gc.textExtent(text, FLAGS).x;
+ } else {
+ Font gcFont = gc.getFont();
+ gc.setFont(font);
+ w += gc.textExtent(text, FLAGS).x;
+ gc.setFont(gcFont);
+ }
+ }
+ if (parent.showClose || showClose) {
+ if (isSelected || parent.showUnselectedClose) {
+ if (w > 0) w += INTERNAL_SPACING;
+ w += CTabFolder.BUTTON_SIZE;
+ }
+ }
+ return w + LEFT_MARGIN + RIGHT_MARGIN;
+}
+/**
+ * Sets the control that is used to fill the client area of
+ * the tab folder when the user selects the tab item.
+ *
+ * @param control the new control (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
+ * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setControl (Control control) {
+ checkWidget();
+ if (control != null) {
+ if (control.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+ if (control.getParent() != parent) SWT.error (SWT.ERROR_INVALID_PARENT);
+ }
+ if (this.control != null && !this.control.isDisposed()) {
+ this.control.setVisible(false);
+ }
+ this.control = control;
+ if (this.control != null) {
+ int index = parent.indexOf (this);
+ if (index == parent.getSelectionIndex ()){
+ this.control.setBounds(parent.getClientArea ());
+ this.control.setVisible(true);
+ } else {
+ this.control.setVisible(false);
+ }
+ }
+}
+/**
+ * Sets the image that is displayed if the tab item is disabled.
+ * Null will clear the image.
+ *
+ * @param image the image to be displayed when the item is disabled or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated This image is not used
+ */
+public void setDisabledImage (Image image) {
+ checkWidget();
+ if (image != null && image.isDisposed ()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ this.disabledImage = image;
+}
+/**
+ * Sets the font that the receiver will use to paint textual information
+ * for this item to the font specified by the argument, or to the default font
+ * for that kind of control if the argument is null.
+ *
+ * @param font the new font (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setFont (Font font){
+ checkWidget();
+ if (font != null && font.isDisposed ()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (font == null && this.font == null) return;
+ if (font != null && font.equals(this.font)) return;
+ this.font = font;
+ if (!parent.updateTabHeight(false)) {
+ parent.updateItems();
+ parent.redrawTabs();
+ }
+}
+public void setImage (Image image) {
+ checkWidget();
+ if (image != null && image.isDisposed ()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ Image oldImage = getImage();
+ if (image == null && oldImage == null) return;
+ if (image != null && image.equals(oldImage)) return;
+ super.setImage(image);
+ if (!parent.updateTabHeight(false)) {
+ // If image is the same size as before,
+ // redraw only the image
+ if (oldImage != null && image != null) {
+ Rectangle oldBounds = oldImage.getBounds();
+ Rectangle bounds = image.getBounds();
+ if (bounds.width == oldBounds.width && bounds.height == oldBounds.height) {
+ if (showing) {
+ boolean selected = parent.indexOf(this) == parent.selectedIndex;
+ if (selected || parent.showUnselectedImage) {
+ int imageX = x + LEFT_MARGIN, maxImageWidth;
+ if (selected) {
+ if (parent.single && (parent.showClose || showClose)) imageX += CTabFolder.BUTTON_SIZE;
+ int rightEdge = Math.min (x + width, parent.getRightItemEdge());
+ maxImageWidth = rightEdge - imageX - RIGHT_MARGIN;
+ if (!parent.single && closeRect.width > 0) maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+ } else {
+ maxImageWidth = x + width - imageX - RIGHT_MARGIN;
+ if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+ maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+ }
+ }
+ if (bounds.width < maxImageWidth) {
+ int imageY = y + (height - bounds.height) / 2 + (parent.onBottom ? -1 : 1);
+ parent.redraw(imageX, imageY, bounds.width, bounds.height, false);
+ }
+ }
+ }
+ return;
+ }
+ }
+ parent.updateItems();
+ parent.redrawTabs();
+ }
+}
+/**
+ * Sets to <code>true</code> to indicate that the receiver's close button should be shown.
+ * If the parent (CTabFolder) was created with SWT.CLOSE style, changing this value has
+ * no effect.
+ *
+ * @param close the new state of the close button
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setShowClose(boolean close) {
+ checkWidget();
+ if (showClose == close) return;
+ showClose = close;
+ parent.updateItems();
+ parent.redrawTabs();
+}
+public void setText (String string) {
+ checkWidget();
+ if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ if (string.equals(getText())) return;
+ super.setText(string);
+ shortenedText = null;
+ shortenedTextWidth = 0;
+ if (!parent.updateTabHeight(false)) {
+ parent.updateItems();
+ parent.redrawTabs();
+ }
+}
+/**
+ * Sets the receiver's tool tip text to the argument, which
+ * may be null indicating that the default tool tip for the
+ * control will be shown. For a control that has a default
+ * tool tip, such as the Tree control on Windows, setting
+ * the tool tip text to an empty string replaces the default,
+ * causing no tool tip text to be shown.
+ *
+ * @param string the new tool tip text (or null)
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setToolTipText (String string) {
+ checkWidget();
+ toolTipText = string;
+}
+
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretEvent.java
new file mode 100644
index 0000000000..4c1b1d6571
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretEvent.java
@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent when the caret offset changes.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.5
+ */
+public class CaretEvent extends TypedEvent {
+
+ /**
+ * caret offset
+ */
+ public int caretOffset;
+
+ static final long serialVersionUID = 3257846571587545489L;
+
+CaretEvent(StyledTextEvent e) {
+ super(e);
+ caretOffset = e.end;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretListener.java
new file mode 100644
index 0000000000..7423d26404
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CaretListener.java
@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * Copyright (c) 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * This listener interface may be implemented in order to receive
+ * CaretEvents.
+ *
+ * @see CaretEvent
+ *
+ * @since 3.5
+ */
+public interface CaretListener extends SWTEventListener {
+
+/**
+ * This method is called after the caret offset is changed.
+ *
+ * The following event fields are used:<ul>
+ * <li>event.caretOffset the new caret offset (input)</li>
+ * </ul>
+ *
+ * @param event the given event
+ *
+ * @see CaretEvent
+ */
+public void caretMoved(CaretEvent event);
+
+}
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ControlEditor.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ControlEditor.java
new file mode 100755
index 0000000000..9e7de3ee9e
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ControlEditor.java
@@ -0,0 +1,255 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+*
+* A ControlEditor is a manager for a Control that appears above a composite and tracks with the
+* moving and resizing of that composite. It can be used to display one control above
+* another control. This could be used when editing a control that does not have editing
+* capabilities by using a text editor or for launching a dialog by placing a button
+* above a control.
+*
+* <p> Here is an example of using a ControlEditor:
+*
+* <code><pre>
+* Canvas canvas = new Canvas(shell, SWT.BORDER);
+* canvas.setBounds(10, 10, 300, 300);
+* Color color = new Color(null, 255, 0, 0);
+* canvas.setBackground(color);
+* ControlEditor editor = new ControlEditor (canvas);
+* // The editor will be a button in the bottom right corner of the canvas.
+* // When selected, it will launch a Color dialog that will change the background
+* // of the canvas.
+* Button button = new Button(canvas, SWT.PUSH);
+* button.setText("Select Color...");
+* button.addSelectionListener (new SelectionAdapter() {
+* public void widgetSelected(SelectionEvent e) {
+* ColorDialog dialog = new ColorDialog(shell);
+* dialog.open();
+* RGB rgb = dialog.getRGB();
+* if (rgb != null) {
+* if (color != null) color.dispose();
+* color = new Color(null, rgb);
+* canvas.setBackground(color);
+* }
+*
+* }
+* });
+*
+* editor.horizontalAlignment = SWT.RIGHT;
+* editor.verticalAlignment = SWT.BOTTOM;
+* editor.grabHorizontal = false;
+* editor.grabVertical = false;
+* Point size = button.computeSize(SWT.DEFAULT, SWT.DEFAULT);
+* editor.minimumWidth = size.x;
+* editor.minimumHeight = size.y;
+* editor.setEditor (button);
+* </pre></code>
+*
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+*/
+public class ControlEditor {
+
+ /**
+ * Specifies how the editor should be aligned relative to the control. Allowed values
+ * are SWT.LEFT, SWT.RIGHT and SWT.CENTER. The default value is SWT.CENTER.
+ */
+ public int horizontalAlignment = SWT.CENTER;
+
+ /**
+ * Specifies whether the editor should be sized to use the entire width of the control.
+ * True means resize the editor to the same width as the cell. False means do not adjust
+ * the width of the editor. The default value is false.
+ */
+ public boolean grabHorizontal = false;
+
+ /**
+ * Specifies the minimum width the editor can have. This is used in association with
+ * a true value of grabHorizontal. If the cell becomes smaller than the minimumWidth, the
+ * editor will not made smaller than the minimum width value. The default value is 0.
+ */
+ public int minimumWidth = 0;
+
+ /**
+ * Specifies how the editor should be aligned relative to the control. Allowed values
+ * are SWT.TOP, SWT.BOTTOM and SWT.CENTER. The default value is SWT.CENTER.
+ */
+ public int verticalAlignment = SWT.CENTER;
+
+ /**
+ * Specifies whether the editor should be sized to use the entire height of the control.
+ * True means resize the editor to the same height as the underlying control. False means do not adjust
+ * the height of the editor. The default value is false.
+ */
+ public boolean grabVertical = false;
+
+ /**
+ * Specifies the minimum height the editor can have. This is used in association with
+ * a true value of grabVertical. If the control becomes smaller than the minimumHeight, the
+ * editor will not made smaller than the minimum height value. The default value is 0.
+ */
+ public int minimumHeight = 0;
+
+ Composite parent;
+ Control editor;
+ private boolean hadFocus;
+ private Listener controlListener;
+ private Listener scrollbarListener;
+
+ private final static int [] EVENTS = {SWT.KeyDown, SWT.KeyUp, SWT.MouseDown, SWT.MouseUp, SWT.Resize};
+/**
+* Creates a ControlEditor for the specified Composite.
+*
+* @param parent the Composite above which this editor will be displayed
+*
+*/
+public ControlEditor (Composite parent) {
+ this.parent = parent;
+
+ controlListener = new Listener() {
+ public void handleEvent(Event e) {
+ layout ();
+ }
+ };
+ for (int i=0; i<EVENTS.length; i++) {
+ parent.addListener (EVENTS [i], controlListener);
+ }
+
+ scrollbarListener = new Listener() {
+ public void handleEvent(Event e) {
+ scroll (e);
+ }
+ };
+ ScrollBar hBar = parent.getHorizontalBar ();
+ if (hBar != null) hBar.addListener (SWT.Selection, scrollbarListener);
+ ScrollBar vBar = parent.getVerticalBar ();
+ if (vBar != null) vBar.addListener (SWT.Selection, scrollbarListener);
+}
+Rectangle computeBounds () {
+ Rectangle clientArea = parent.getClientArea();
+ Rectangle editorRect = new Rectangle(clientArea.x, clientArea.y, minimumWidth, minimumHeight);
+
+ if (grabHorizontal)
+ editorRect.width = Math.max(clientArea.width, minimumWidth);
+
+ if (grabVertical)
+ editorRect.height = Math.max(clientArea.height, minimumHeight);
+
+ switch (horizontalAlignment) {
+ case SWT.RIGHT:
+ editorRect.x += clientArea.width - editorRect.width;
+ break;
+ case SWT.LEFT:
+ // do nothing - clientArea.x is the right answer
+ break;
+ default:
+ // default is CENTER
+ editorRect.x += (clientArea.width - editorRect.width)/2;
+ }
+
+ switch (verticalAlignment) {
+ case SWT.BOTTOM:
+ editorRect.y += clientArea.height - editorRect.height;
+ break;
+ case SWT.TOP:
+ // do nothing - clientArea.y is the right answer
+ break;
+ default :
+ // default is CENTER
+ editorRect.y += (clientArea.height - editorRect.height)/2;
+ }
+
+
+ return editorRect;
+
+}
+/**
+ * Removes all associations between the Editor and the underlying composite. The
+ * composite and the editor Control are <b>not</b> disposed.
+ */
+public void dispose () {
+ if (parent != null && !parent.isDisposed()) {
+ for (int i=0; i<EVENTS.length; i++) {
+ parent.removeListener (EVENTS [i], controlListener);
+ }
+ ScrollBar hBar = parent.getHorizontalBar ();
+ if (hBar != null) hBar.removeListener (SWT.Selection, scrollbarListener);
+ ScrollBar vBar = parent.getVerticalBar ();
+ if (vBar != null) vBar.removeListener (SWT.Selection, scrollbarListener);
+ }
+
+ parent = null;
+ editor = null;
+ hadFocus = false;
+ controlListener = null;
+ scrollbarListener = null;
+}
+/**
+* Returns the Control that is displayed above the composite being edited.
+*
+* @return the Control that is displayed above the composite being edited
+*/
+public Control getEditor () {
+ return editor;
+}
+/**
+ * Lays out the control within the underlying composite. This
+ * method should be called after changing one or more fields to
+ * force the Editor to resize.
+ *
+ * @since 2.1
+ */
+public void layout () {
+ if (editor == null || editor.isDisposed()) return;
+ if (editor.getVisible ()) {
+ hadFocus = editor.isFocusControl();
+ } // this doesn't work because
+ // resizing the column takes the focus away
+ // before we get here
+ editor.setBounds (computeBounds ());
+ if (hadFocus) {
+ if (editor == null || editor.isDisposed()) return;
+ editor.setFocus ();
+ }
+}
+void scroll (Event e) {
+ if (editor == null || editor.isDisposed()) return;
+ layout();
+}
+/**
+* Specify the Control that is to be displayed.
+*
+* <p>Note: The Control provided as the editor <b>must</b> be created with its parent
+* being the Composite specified in the ControlEditor constructor.
+*
+* @param editor the Control that is displayed above the composite being edited
+*/
+public void setEditor (Control editor) {
+
+ if (editor == null) {
+ // this is the case where the caller is setting the editor to be blank
+ // set all the values accordingly
+ this.editor = null;
+ return;
+ }
+
+ this.editor = editor;
+ layout();
+ if (this.editor == null || this.editor.isDisposed()) return;
+ editor.setVisible(true);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/DefaultContent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/DefaultContent.java
new file mode 100755
index 0000000000..cd00023a27
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/DefaultContent.java
@@ -0,0 +1,881 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.internal.Compatibility;
+import org.eclipse.swt.widgets.*;
+import java.util.Vector;
+
+class DefaultContent implements StyledTextContent {
+ private final static String LineDelimiter = System.getProperty("line.separator");
+
+ Vector textListeners = new Vector(); // stores text listeners for event sending
+ char[] textStore = new char[0]; // stores the actual text
+ int gapStart = -1; // the character position start of the gap
+ int gapEnd = -1; // the character position after the end of the gap
+ int gapLine = -1; // the line on which the gap exists, the gap will always be associated with one line
+ int highWatermark = 300;
+ int lowWatermark = 50;
+
+ int[][] lines = new int[50][2]; // array of character positions and lengths representing the lines of text
+ int lineCount = 0; // the number of lines of text
+ int expandExp = 1; // the expansion exponent, used to increase the lines array exponentially
+ int replaceExpandExp = 1; // the expansion exponent, used to increase the lines array exponentially
+
+/**
+ * Creates a new DefaultContent and initializes it. A <code>StyledTextContent</> will always have
+ * at least one empty line.
+ */
+DefaultContent() {
+ super();
+ setText("");
+}
+/**
+ * Adds a line to the end of the line indexes array. Increases the size of the array if necessary.
+ * <code>lineCount</code> is updated to reflect the new entry.
+ * <p>
+ *
+ * @param start the start of the line
+ * @param length the length of the line
+ */
+void addLineIndex(int start, int length) {
+ int size = lines.length;
+ if (lineCount == size) {
+ // expand the lines by powers of 2
+ int[][] newLines = new int[size+Compatibility.pow2(expandExp)][2];
+ System.arraycopy(lines, 0, newLines, 0, size);
+ lines = newLines;
+ expandExp++;
+ }
+ int[] range = new int[] {start, length};
+ lines[lineCount] = range;
+ lineCount++;
+}
+/**
+ * Adds a line index to the end of <code>linesArray</code>. Increases the
+ * size of the array if necessary and returns a new array.
+ * <p>
+ *
+ * @param start the start of the line
+ * @param length the length of the line
+ * @param linesArray the array to which to add the line index
+ * @param count the position at which to add the line
+ * @return a new array of line indexes
+ */
+int[][] addLineIndex(int start, int length, int[][] linesArray, int count) {
+ int size = linesArray.length;
+ int[][] newLines = linesArray;
+ if (count == size) {
+ newLines = new int[size+Compatibility.pow2(replaceExpandExp)][2];
+ replaceExpandExp++;
+ System.arraycopy(linesArray, 0, newLines, 0, size);
+ }
+ int[] range = new int[] {start, length};
+ newLines[count] = range;
+ return newLines;
+}
+/**
+ * Adds a <code>TextChangeListener</code> listening for
+ * <code>TextChangingEvent</code> and <code>TextChangedEvent</code>. A
+ * <code>TextChangingEvent</code> is sent before changes to the text occur.
+ * A <code>TextChangedEvent</code> is sent after changes to the text
+ * occurred.
+ * <p>
+ *
+ * @param listener the listener
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addTextChangeListener(TextChangeListener listener) {
+ if (listener == null) error(SWT.ERROR_NULL_ARGUMENT);
+ StyledTextListener typedListener = new StyledTextListener(listener);
+ textListeners.addElement(typedListener);
+}
+/**
+ * Adjusts the gap to accommodate a text change that is occurring.
+ * <p>
+ *
+ * @param position the position at which a change is occurring
+ * @param sizeHint the size of the change
+ * @param line the line where the gap will go
+ */
+void adjustGap(int position, int sizeHint, int line) {
+ if (position == gapStart) {
+ // text is being inserted at the gap position
+ int size = (gapEnd - gapStart) - sizeHint;
+ if (lowWatermark <= size && size <= highWatermark)
+ return;
+ } else if ((position + sizeHint == gapStart) && (sizeHint < 0)) {
+ // text is being deleted at the gap position
+ int size = (gapEnd - gapStart) - sizeHint;
+ if (lowWatermark <= size && size <= highWatermark)
+ return;
+ }
+ moveAndResizeGap(position, sizeHint, line);
+}
+/**
+ * Calculates the indexes of each line in the text store. Assumes no gap exists.
+ * Optimized to do less checking.
+ */
+void indexLines(){
+ int start = 0;
+ lineCount = 0;
+ int textLength = textStore.length;
+ int i;
+ for (i = start; i < textLength; i++) {
+ char ch = textStore[i];
+ if (ch == SWT.CR) {
+ // see if the next character is a LF
+ if (i + 1 < textLength) {
+ ch = textStore[i+1];
+ if (ch == SWT.LF) {
+ i++;
+ }
+ }
+ addLineIndex(start, i - start + 1);
+ start = i + 1;
+ } else if (ch == SWT.LF) {
+ addLineIndex(start, i - start + 1);
+ start = i + 1;
+ }
+ }
+ addLineIndex(start, i - start);
+}
+/**
+ * Returns whether or not the given character is a line delimiter. Both CR and LF
+ * are valid line delimiters.
+ * <p>
+ *
+ * @param ch the character to test
+ * @return true if ch is a delimiter, false otherwise
+ */
+boolean isDelimiter(char ch) {
+ if (ch == SWT.CR) return true;
+ if (ch == SWT.LF) return true;
+ return false;
+}
+/**
+ * Determine whether or not the replace operation is valid. DefaultContent will not allow
+ * the /r/n line delimiter to be split or partially deleted.
+ * <p>
+ *
+ * @param start start offset of text to replace
+ * @param replaceLength start offset of text to replace
+ * @param newText start offset of text to replace
+ * @return a boolean specifying whether or not the replace operation is valid
+ */
+protected boolean isValidReplace(int start, int replaceLength, String newText){
+ if (replaceLength == 0) {
+ // inserting text, see if the \r\n line delimiter is being split
+ if (start == 0) return true;
+ if (start == getCharCount()) return true;
+ char before = getTextRange(start - 1, 1).charAt(0);
+ if (before == '\r') {
+ char after = getTextRange(start, 1).charAt(0);
+ if (after == '\n') return false;
+ }
+ } else {
+ // deleting text, see if part of a \r\n line delimiter is being deleted
+ char startChar = getTextRange(start, 1).charAt(0);
+ if (startChar == '\n') {
+ // see if char before delete position is \r
+ if (start != 0) {
+ char before = getTextRange(start - 1, 1).charAt(0);
+ if (before == '\r') return false;
+ }
+ }
+ char endChar = getTextRange(start + replaceLength - 1, 1).charAt(0);
+ if (endChar == '\r') {
+ // see if char after delete position is \n
+ if (start + replaceLength != getCharCount()) {
+ char after = getTextRange(start + replaceLength, 1).charAt(0);
+ if (after == '\n') return false;
+ }
+ }
+ }
+ return true;
+}
+/**
+ * Calculates the indexes of each line of text in the given range.
+ * <p>
+ *
+ * @param offset the logical start offset of the text lineate
+ * @param length the length of the text to lineate, includes gap
+ * @param numLines the number of lines to initially allocate for the line index array,
+ * passed in for efficiency (the exact number of lines may be known)
+ * @return a line indexes array where each line is identified by a start offset and
+ * a length
+ */
+int[][] indexLines(int offset, int length, int numLines){
+ int[][] indexedLines = new int[numLines][2];
+ int start = 0;
+ int lineCount = 0;
+ int i;
+ replaceExpandExp = 1;
+ for (i = start; i < length; i++) {
+ int location = i + offset;
+ if ((location >= gapStart) && (location < gapEnd)) {
+ // ignore the gap
+ } else {
+ char ch = textStore[location];
+ if (ch == SWT.CR) {
+ // see if the next character is a LF
+ if (location+1 < textStore.length) {
+ ch = textStore[location+1];
+ if (ch == SWT.LF) {
+ i++;
+ }
+ }
+ indexedLines = addLineIndex(start, i - start + 1, indexedLines, lineCount);
+ lineCount++;
+ start = i + 1;
+ } else if (ch == SWT.LF) {
+ indexedLines = addLineIndex(start, i - start + 1, indexedLines, lineCount);
+ lineCount++;
+ start = i + 1;
+ }
+ }
+ }
+ int[][] newLines = new int[lineCount+1][2];
+ System.arraycopy(indexedLines, 0, newLines, 0, lineCount);
+ int[] range = new int[] {start, i - start};
+ newLines[lineCount] = range;
+ return newLines;
+}
+/**
+ * Inserts text.
+ * <p>
+ *
+ * @param position the position at which to insert the text
+ * @param text the text to insert
+ */
+void insert(int position, String text) {
+ if (text.length() == 0) return;
+
+ int startLine = getLineAtOffset(position);
+ int change = text.length();
+ boolean endInsert = position == getCharCount();
+ adjustGap(position, change, startLine);
+
+ // during an insert the gap will be adjusted to start at
+ // position and it will be associated with startline, the
+ // inserted text will be placed in the gap
+ int startLineOffset = getOffsetAtLine(startLine);
+ // at this point, startLineLength will include the start line
+ // and all of the newly inserted text
+ int startLineLength = getPhysicalLine(startLine).length();
+
+ if (change > 0) {
+ // shrink gap
+ gapStart += (change);
+ for (int i = 0; i < text.length(); i++) {
+ textStore[position + i]= text.charAt(i);
+ }
+ }
+
+ // figure out the number of new lines that have been inserted
+ int [][] newLines = indexLines(startLineOffset, startLineLength, 10);
+ // only insert an empty line if it is the last line in the text
+ int numNewLines = newLines.length - 1;
+ if (newLines[numNewLines][1] == 0) {
+ // last inserted line is a new line
+ if (endInsert) {
+ // insert happening at end of the text, leave numNewLines as
+ // is since the last new line will not be concatenated with another
+ // line
+ numNewLines += 1;
+ } else {
+ numNewLines -= 1;
+ }
+ }
+
+ // make room for the new lines
+ expandLinesBy(numNewLines);
+ // shift down the lines after the replace line
+ for (int i = lineCount - 1; i > startLine; i--) {
+ lines[i + numNewLines]=lines[i];
+ }
+ // insert the new lines
+ for (int i = 0; i < numNewLines; i++) {
+ newLines[i][0] += startLineOffset;
+ lines[startLine + i]=newLines[i];
+ }
+ // update the last inserted line
+ if (numNewLines < newLines.length) {
+ newLines[numNewLines][0] += startLineOffset;
+ lines[startLine + numNewLines] = newLines[numNewLines];
+ }
+
+ lineCount += numNewLines;
+ gapLine = getLineAtPhysicalOffset(gapStart);
+}
+/**
+ * Moves the gap and adjusts its size in anticipation of a text change.
+ * The gap is resized to actual size + the specified size and moved to the given
+ * position.
+ * <p>
+ *
+ * @param position the position at which a change is occurring
+ * @param size the size of the change
+ * @param newGapLine the line where the gap should be put
+ */
+void moveAndResizeGap(int position, int size, int newGapLine) {
+ char[] content = null;
+ int oldSize = gapEnd - gapStart;
+ int newSize;
+ if (size > 0) {
+ newSize = highWatermark + size;
+ } else {
+ newSize = lowWatermark - size;
+ }
+ // remove the old gap from the lines information
+ if (gapExists()) {
+ // adjust the line length
+ lines[gapLine][1] = lines[gapLine][1] - oldSize;
+ // adjust the offsets of the lines after the gapLine
+ for (int i = gapLine + 1; i < lineCount; i++) {
+ lines[i][0] = lines[i][0] - oldSize;
+ }
+ }
+
+ if (newSize < 0) {
+ if (oldSize > 0) {
+ // removing the gap
+ content = new char[textStore.length - oldSize];
+ System.arraycopy(textStore, 0, content, 0, gapStart);
+ System.arraycopy(textStore, gapEnd, content, gapStart, content.length - gapStart);
+ textStore = content;
+ }
+ gapStart = gapEnd = position;
+ return;
+ }
+ content = new char[textStore.length + (newSize - oldSize)];
+ int newGapStart = position;
+ int newGapEnd = newGapStart + newSize;
+ if (oldSize == 0) {
+ System.arraycopy(textStore, 0, content, 0, newGapStart);
+ System.arraycopy(textStore, newGapStart, content, newGapEnd, content.length - newGapEnd);
+ } else if (newGapStart < gapStart) {
+ int delta = gapStart - newGapStart;
+ System.arraycopy(textStore, 0, content, 0, newGapStart);
+ System.arraycopy(textStore, newGapStart, content, newGapEnd, delta);
+ System.arraycopy(textStore, gapEnd, content, newGapEnd + delta, textStore.length - gapEnd);
+ } else {
+ int delta = newGapStart - gapStart;
+ System.arraycopy(textStore, 0, content, 0, gapStart);
+ System.arraycopy(textStore, gapEnd, content, gapStart, delta);
+ System.arraycopy(textStore, gapEnd + delta, content, newGapEnd, content.length - newGapEnd);
+ }
+ textStore = content;
+ gapStart = newGapStart;
+ gapEnd = newGapEnd;
+
+ // add the new gap to the lines information
+ if (gapExists()) {
+ gapLine = newGapLine;
+ // adjust the line length
+ int gapLength = gapEnd - gapStart;
+ lines[gapLine][1] = lines[gapLine][1] + (gapLength);
+ // adjust the offsets of the lines after the gapLine
+ for (int i = gapLine + 1; i < lineCount; i++) {
+ lines[i][0] = lines[i][0] + gapLength;
+ }
+ }
+}
+/**
+ * Returns the number of lines that are in the specified text.
+ * <p>
+ *
+ * @param startOffset the start of the text to lineate
+ * @param length the length of the text to lineate
+ * @return number of lines
+ */
+int lineCount(int startOffset, int length){
+ if (length == 0) {
+ return 0;
+ }
+ int lineCount = 0;
+ int count = 0;
+ int i = startOffset;
+ if (i >= gapStart) {
+ i += gapEnd - gapStart;
+ }
+ while (count < length) {
+ if ((i >= gapStart) && (i < gapEnd)) {
+ // ignore the gap
+ } else {
+ char ch = textStore[i];
+ if (ch == SWT.CR) {
+ // see if the next character is a LF
+ if (i + 1 < textStore.length) {
+ ch = textStore[i+1];
+ if (ch == SWT.LF) {
+ i++;
+ count++;
+ }
+ }
+ lineCount++;
+ } else if (ch == SWT.LF) {
+ lineCount++;
+ }
+ count++;
+ }
+ i++;
+ }
+ return lineCount;
+}
+/**
+ * Returns the number of lines that are in the specified text.
+ * <p>
+ *
+ * @param text the text to lineate
+ * @return number of lines in the text
+ */
+int lineCount(String text){
+ int lineCount = 0;
+ int length = text.length();
+ for (int i = 0; i < length; i++) {
+ char ch = text.charAt(i);
+ if (ch == SWT.CR) {
+ if (i + 1 < length && text.charAt(i + 1) == SWT.LF) {
+ i++;
+ }
+ lineCount++;
+ } else if (ch == SWT.LF) {
+ lineCount++;
+ }
+ }
+ return lineCount;
+}
+/**
+ * @return the logical length of the text store
+ */
+public int getCharCount() {
+ int length = gapEnd - gapStart;
+ return (textStore.length - length);
+}
+/**
+ * Returns the line at <code>index</code> without delimiters.
+ * <p>
+ *
+ * @param index the index of the line to return
+ * @return the logical line text (i.e., without the gap)
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when index is out of range</li>
+ * </ul>
+ */
+public String getLine(int index) {
+ if ((index >= lineCount) || (index < 0)) error(SWT.ERROR_INVALID_ARGUMENT);
+ int start = lines[index][0];
+ int length = lines[index][1];
+ int end = start + length - 1;
+ if (!gapExists() || (end < gapStart) || (start >= gapEnd)) {
+ // line is before or after the gap
+ while ((length - 1 >= 0) && isDelimiter(textStore[start+length-1])) {
+ length--;
+ }
+ return new String(textStore, start, length);
+ } else {
+ // gap is in the specified range, strip out the gap
+ StringBuffer buf = new StringBuffer();
+ int gapLength = gapEnd - gapStart;
+ buf.append(textStore, start, gapStart - start);
+ buf.append(textStore, gapEnd, length - gapLength - (gapStart - start));
+ length = buf.length();
+ while ((length - 1 >=0) && isDelimiter(buf.charAt(length - 1))) {
+ length--;
+ }
+ return buf.toString().substring(0, length);
+ }
+}
+/**
+ * Returns the line delimiter that should be used by the StyledText
+ * widget when inserting new lines. This delimiter may be different than the
+ * delimiter that is used by the <code>StyledTextContent</code> interface.
+ * <p>
+ *
+ * @return the platform line delimiter as specified in the line.separator
+ * system property.
+ */
+public String getLineDelimiter() {
+ return LineDelimiter;
+}
+/**
+ * Returns the line at the given index with delimiters.
+ * <p>
+ * @param index the index of the line to return
+ * @return the logical line text (i.e., without the gap) with delimiters
+ */
+String getFullLine(int index) {
+ int start = lines[index][0];
+ int length = lines[index][1];
+ int end = start + length - 1;
+ if (!gapExists() || (end < gapStart) || (start >= gapEnd)) {
+ // line is before or after the gap
+ return new String(textStore, start, length);
+ } else {
+ // gap is in the specified range, strip out the gap
+ StringBuffer buffer = new StringBuffer();
+ int gapLength = gapEnd - gapStart;
+ buffer.append(textStore, start, gapStart - start);
+ buffer.append(textStore, gapEnd, length - gapLength - (gapStart - start));
+ return buffer.toString();
+ }
+}
+/**
+ * Returns the physical line at the given index (i.e., with delimiters and the gap).
+ * <p>
+ *
+ * @param index the line index
+ * @return the physical line
+ */
+String getPhysicalLine(int index) {
+ int start = lines[index][0];
+ int length = lines[index][1];
+ return getPhysicalText(start, length);
+}
+/**
+ * @return the number of lines in the text store
+ */
+public int getLineCount(){
+ return lineCount;
+}
+/**
+ * Returns the line at the given offset.
+ * <p>
+ *
+ * @param charPosition logical character offset (i.e., does not include gap)
+ * @return the line index
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when charPosition is out of range</li>
+ * </ul>
+ */
+public int getLineAtOffset(int charPosition){
+ if ((charPosition > getCharCount()) || (charPosition < 0)) error(SWT.ERROR_INVALID_ARGUMENT);
+ int position;
+ if (charPosition < gapStart) {
+ // position is before the gap
+ position = charPosition;
+ } else {
+ // position includes the gap
+ position = charPosition + (gapEnd - gapStart);
+ }
+
+ // if last line and the line is not empty you can ask for
+ // a position that doesn't exist (the one to the right of the
+ // last character) - for inserting
+ if (lineCount > 0) {
+ int lastLine = lineCount - 1;
+ if (position == lines[lastLine][0] + lines[lastLine][1])
+ return lastLine;
+ }
+
+ int high = lineCount;
+ int low = -1;
+ int index = lineCount;
+ while (high - low > 1) {
+ index = (high + low) / 2;
+ int lineStart = lines[index][0];
+ int lineEnd = lineStart + lines[index][1] - 1;
+ if (position <= lineStart) {
+ high = index;
+ } else if (position <= lineEnd) {
+ high = index;
+ break;
+ } else {
+ low = index;
+ }
+ }
+ return high;
+}
+/**
+ * Returns the line index at the given physical offset.
+ * <p>
+ *
+ * @param position physical character offset (i.e., includes gap)
+ * @return the line index
+ */
+int getLineAtPhysicalOffset(int position){
+ int high = lineCount;
+ int low = -1;
+ int index = lineCount;
+ while (high - low > 1) {
+ index = (high + low) / 2;
+ int lineStart = lines[index][0];
+ int lineEnd = lineStart + lines[index][1] - 1;
+ if (position <= lineStart) {
+ high = index;
+ } else if (position <= lineEnd) {
+ high = index;
+ break;
+ } else {
+ low = index;
+ }
+ }
+ return high;
+}
+/**
+ * Returns the logical offset of the given line.
+ * <p>
+ *
+ * @param lineIndex index of line
+ * @return the logical starting offset of the line. When there are not any lines,
+ * getOffsetAtLine(0) is a valid call that should answer 0.
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when lineIndex is out of range</li>
+ * </ul>
+ */
+public int getOffsetAtLine(int lineIndex) {
+ if (lineIndex == 0) return 0;
+ if ((lineIndex >= lineCount) || (lineIndex < 0)) error(SWT.ERROR_INVALID_ARGUMENT);
+ int start = lines[lineIndex][0];
+ if (start > gapEnd) {
+ return start - (gapEnd - gapStart);
+ } else {
+ return start;
+ }
+}
+/**
+ * Increases the line indexes array to accommodate more lines.
+ * <p>
+ *
+ * @param numLines the number to increase the array by
+ */
+void expandLinesBy(int numLines) {
+ int size = lines.length;
+ if (size - lineCount >= numLines) {
+ return;
+ }
+ int[][] newLines = new int[size+Math.max(10, numLines)][2];
+ System.arraycopy(lines, 0, newLines, 0, size);
+ lines = newLines;
+}
+/**
+ * Reports an SWT error.
+ * <p>
+ *
+ * @param code the error code
+ */
+void error (int code) {
+ SWT.error(code);
+}
+/**
+ * Returns whether or not a gap exists in the text store.
+ * <p>
+ *
+ * @return true if gap exists, false otherwise
+ */
+boolean gapExists() {
+ return gapStart != gapEnd;
+}
+/**
+ * Returns a string representing the continuous content of
+ * the text store.
+ * <p>
+ *
+ * @param start the physical start offset of the text to return
+ * @param length the physical length of the text to return
+ * @return the text
+ */
+String getPhysicalText(int start, int length) {
+ return new String(textStore, start, length);
+}
+/**
+ * Returns a string representing the logical content of
+ * the text store (i.e., gap stripped out).
+ * <p>
+ *
+ * @param start the logical start offset of the text to return
+ * @param length the logical length of the text to return
+ * @return the text
+ */
+public String getTextRange(int start, int length) {
+ if (textStore == null)
+ return "";
+ if (length == 0)
+ return "";
+ int end= start + length;
+ if (!gapExists() || (end < gapStart))
+ return new String(textStore, start, length);
+ if (gapStart < start) {
+ int gapLength= gapEnd - gapStart;
+ return new String(textStore, start + gapLength , length);
+ }
+ StringBuffer buf = new StringBuffer();
+ buf.append(textStore, start, gapStart - start);
+ buf.append(textStore, gapEnd, end - gapStart);
+ return buf.toString();
+}
+/**
+ * Removes the specified <code>TextChangeListener</code>.
+ * <p>
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeTextChangeListener(TextChangeListener listener){
+ if (listener == null) error(SWT.ERROR_NULL_ARGUMENT);
+ for (int i = 0; i < textListeners.size(); i++) {
+ TypedListener typedListener = (TypedListener) textListeners.elementAt(i);
+ if (typedListener.getEventListener () == listener) {
+ textListeners.removeElementAt(i);
+ break;
+ }
+ }
+}
+/**
+ * Replaces the text with <code>newText</code> starting at position <code>start</code>
+ * for a length of <code>replaceLength</code>. Notifies the appropriate listeners.
+ * <p>
+ *
+ * When sending the TextChangingEvent, <code>newLineCount</code> is the number of
+ * lines that are going to be inserted and <code>replaceLineCount</code> is
+ * the number of lines that are going to be deleted, based on the change
+ * that occurs visually. For example:
+ * <ul>
+ * <li>(replaceText,newText) ==> (replaceLineCount,newLineCount)
+ * <li>("","\n") ==> (0,1)
+ * <li>("\n\n","a") ==> (2,0)
+ * </ul>
+ * </p>
+ *
+ * @param start start offset of text to replace
+ * @param replaceLength start offset of text to replace
+ * @param newText start offset of text to replace
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the text change results in a multi byte
+ * line delimiter being split or partially deleted. Splitting a line
+ * delimiter by inserting text between the CR and LF characters of the
+ * \r\n delimiter or deleting part of this line delimiter is not supported</li>
+ * </ul>
+ */
+public void replaceTextRange(int start, int replaceLength, String newText){
+ // check for invalid replace operations
+ if (!isValidReplace(start, replaceLength, newText)) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+
+ // inform listeners
+ StyledTextEvent event = new StyledTextEvent(this);
+ event.type = StyledText.TextChanging;
+ event.start = start;
+ event.replaceLineCount = lineCount(start, replaceLength);
+ event.text = newText;
+ event.newLineCount = lineCount(newText);
+ event.replaceCharCount = replaceLength;
+ event.newCharCount = newText.length();
+ sendTextEvent(event);
+
+ // first delete the text to be replaced
+ delete(start, replaceLength, event.replaceLineCount + 1);
+ // then insert the new text
+ insert(start, newText);
+ // inform listeners
+ event = new StyledTextEvent(this);
+ event.type = StyledText.TextChanged;
+ sendTextEvent(event);
+}
+/**
+ * Sends the text listeners the TextChanged event.
+ */
+void sendTextEvent(StyledTextEvent event) {
+ for (int i = 0; i < textListeners.size(); i++) {
+ ((StyledTextListener)textListeners.elementAt(i)).handleEvent(event);
+ }
+}
+/**
+ * Sets the content to text and removes the gap since there are no sensible predictions
+ * about where the next change will occur.
+ * <p>
+ *
+ * @param text the text
+ */
+public void setText (String text){
+ textStore = text.toCharArray();
+ gapStart = -1;
+ gapEnd = -1;
+ expandExp = 1;
+ indexLines();
+ StyledTextEvent event = new StyledTextEvent(this);
+ event.type = StyledText.TextSet;
+ event.text = "";
+ sendTextEvent(event);
+}
+/**
+ * Deletes text.
+ * <p>
+ * @param position the position at which the text to delete starts
+ * @param length the length of the text to delete
+ * @param numLines the number of lines that are being deleted
+ */
+void delete(int position, int length, int numLines) {
+ if (length == 0) return;
+
+ int startLine = getLineAtOffset(position);
+ int startLineOffset = getOffsetAtLine(startLine);
+ int endLine = getLineAtOffset(position + length);
+
+ String endText = "";
+ boolean splittingDelimiter = false;
+ if (position + length < getCharCount()) {
+ endText = getTextRange(position + length - 1, 2);
+ if ((endText.charAt(0) == SWT.CR) && (endText.charAt(1) == SWT.LF)) {
+ splittingDelimiter = true;
+ }
+ }
+
+ adjustGap(position + length, -length, startLine);
+ int [][] oldLines = indexLines(position, length + (gapEnd - gapStart), numLines);
+
+ // enlarge the gap - the gap can be enlarged either to the
+ // right or left
+ if (position + length == gapStart) {
+ gapStart -= length;
+ } else {
+ gapEnd += length;
+ }
+
+ // figure out the length of the new concatenated line, do so by
+ // finding the first line delimiter after position
+ int j = position;
+ boolean eol = false;
+ while (j < textStore.length && !eol) {
+ if (j < gapStart || j >= gapEnd) {
+ char ch = textStore[j];
+ if (isDelimiter(ch)) {
+ if (j + 1 < textStore.length) {
+ if (ch == SWT.CR && (textStore[j+1] == SWT.LF)) {
+ j++;
+ }
+ }
+ eol = true;
+ }
+ }
+ j++;
+ }
+ // update the line where the deletion started
+ lines[startLine][1] = (position - startLineOffset) + (j - position);
+ // figure out the number of lines that have been deleted
+ int numOldLines = oldLines.length - 1;
+ if (splittingDelimiter) numOldLines -= 1;
+ // shift up the lines after the last deleted line, no need to update
+ // the offset or length of the lines
+ for (int i = endLine + 1; i < lineCount; i++) {
+ lines[i - numOldLines] = lines[i];
+ }
+ lineCount -= numOldLines;
+ gapLine = getLineAtPhysicalOffset(gapStart);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyEvent.java
new file mode 100755
index 0000000000..3d429291df
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyEvent.java
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent after a text change occurs.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public final class ExtendedModifyEvent extends TypedEvent {
+ /** start offset of the new text */
+ public int start;
+ /** length of the new text */
+ public int length;
+ /** replaced text or empty string if no text was replaced */
+ public String replacedText;
+
+ static final long serialVersionUID = 3258696507027830832L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given event.
+ *
+ * @param e the event containing the information
+ */
+public ExtendedModifyEvent(StyledTextEvent e) {
+ super(e);
+ start = e.start;
+ length = e.end - e.start;
+ replacedText = e.text;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyListener.java
new file mode 100755
index 0000000000..86ca395bc2
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ExtendedModifyListener.java
@@ -0,0 +1,40 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * Classes which implement this interface provide a method
+ * that deals with the event that is generated when text
+ * is modified.
+ *
+ * @see ExtendedModifyEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public interface ExtendedModifyListener extends SWTEventListener {
+
+/**
+ * This method is called after a text change occurs.
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.start the start offset of the new text (input)</li>
+ * <li>event.length the length of the new text (input)</li>
+ * <li>event.replacedText the replaced text (input)</li>
+ * </ul>
+ *
+ * @param event the given event
+ * @see ExtendedModifyEvent
+ */
+public void modifyText(ExtendedModifyEvent event);
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundEvent.java
new file mode 100755
index 0000000000..2337737299
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundEvent.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+
+/**
+ * This event is sent when a line is about to be drawn.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class LineBackgroundEvent extends TypedEvent {
+
+ /**
+ * line start offset
+ */
+ public int lineOffset;
+
+ /**
+ * line text
+ */
+ public String lineText;
+
+ /**
+ * line background color
+ */
+ public Color lineBackground;
+
+ static final long serialVersionUID = 3978711687853324342L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given event.
+ *
+ * @param e the event containing the information
+ */
+public LineBackgroundEvent(StyledTextEvent e) {
+ super(e);
+ lineOffset = e.detail;
+ lineText = e.text;
+ lineBackground = e.lineBackground;
+}
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundListener.java
new file mode 100755
index 0000000000..ebfac4dd41
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineBackgroundListener.java
@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * Classes which implement this interface provide a method
+ * that can provide the background color for a line that
+ * is to be drawn.
+ *
+ * @see LineBackgroundEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public interface LineBackgroundListener extends SWTEventListener {
+
+/**
+ * This method is called when a line is about to be drawn in order to get its
+ * background color.
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.lineOffset line start offset (input)</li>
+ * <li>event.lineText line text (input)</li>
+ * <li>event.lineBackground line background color (output)</li>
+ * </ul>
+ *
+ * @param event the given event
+ * @see LineBackgroundEvent
+ */
+public void lineGetBackground(LineBackgroundEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleEvent.java
new file mode 100755
index 0000000000..7b5e2b3956
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleEvent.java
@@ -0,0 +1,103 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent when a line is about to be drawn.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class LineStyleEvent extends TypedEvent {
+
+ /**
+ * line start offset (input)
+ */
+ public int lineOffset;
+
+ /**
+ * line text (input)
+ */
+ public String lineText;
+
+ /**
+ * line ranges (output)
+ *
+ * @since 3.2
+ */
+ public int[] ranges;
+
+ /**
+ * line styles (output)
+ *
+ * Note: Because a StyleRange includes the start and length, the
+ * same instance cannot occur multiple times in the array of styles.
+ * If the same style attributes, such as font and color, occur in
+ * multiple StyleRanges, <code>ranges</code> can be used to share
+ * styles and reduce memory usage.
+ */
+ public StyleRange[] styles;
+
+ /**
+ * line alignment (input, output)
+ *
+ * @since 3.2
+ */
+ public int alignment;
+
+ /**
+ * line indent (input, output)
+ *
+ * @since 3.2
+ */
+ public int indent;
+
+ /**
+ * line justification (input, output)
+ *
+ * @since 3.2
+ */
+ public boolean justify;
+
+ /**
+ * line bullet (output)
+ * @since 3.2
+ */
+ public Bullet bullet;
+
+ /**
+ * line bullet index (output)
+ * @since 3.2
+ */
+ public int bulletIndex;
+
+ static final long serialVersionUID = 3906081274027192884L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given event.
+ *
+ * @param e the event containing the information
+ */
+public LineStyleEvent(StyledTextEvent e) {
+ super(e);
+ styles = e.styles;
+ ranges = e.ranges;
+ lineOffset = e.detail;
+ lineText = e.text;
+ alignment = e.alignment;
+ justify = e.justify;
+ indent = e.indent;
+ bullet = e.bullet;
+ bulletIndex = e.bulletIndex;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleListener.java
new file mode 100755
index 0000000000..a6acfda978
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/LineStyleListener.java
@@ -0,0 +1,39 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * Classes which implement this interface provide a method
+ * that can provide the style information for a line that
+ * is to be drawn.
+ *
+ * @see LineStyleEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public interface LineStyleListener extends SWTEventListener {
+
+/**
+ * This method is called when a line is about to be drawn in order to get the
+ * line's style information.
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.lineOffset line start offset (input)</li>
+ * <li>event.lineText line text (input)</li>
+ * <li>event.styles array of StyleRanges, need to be in order (output)</li>
+ * </ul>
+ *
+ * @param event the given event
+ * @see LineStyleEvent
+ */
+public void lineGetStyle(LineStyleEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementEvent.java
new file mode 100644
index 0000000000..97d758dd2e
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementEvent.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent when a new offset is required based on the current
+ * offset and a movement type.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.3
+ */
+public class MovementEvent extends TypedEvent {
+
+ /**
+ * line start offset (input)
+ */
+ public int lineOffset;
+
+ /**
+ * line text (input)
+ */
+ public String lineText;
+
+ /**
+ * the current offset (input)
+ */
+ public int offset;
+
+ /**
+ * the new offset (input, output)
+ */
+ public int newOffset;
+
+ /**
+ * the movement type (input)
+ *
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD_END
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD_START
+ * @see org.eclipse.swt.SWT#MOVEMENT_CHAR
+ * @see org.eclipse.swt.SWT#MOVEMENT_CLUSTER
+ */
+ public int movement;
+
+ static final long serialVersionUID = 3978765487853324342L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given event.
+ *
+ * @param e the event containing the information
+ */
+public MovementEvent(StyledTextEvent e) {
+ super(e);
+ lineOffset = e.detail;
+ lineText = e.text;
+ movement = e.count;
+ offset = e.start;
+ newOffset = e.end;
+}
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementListener.java
new file mode 100644
index 0000000000..abc39e58d5
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/MovementListener.java
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * This listener is invoked when a new offset is required based on the current
+ * offset and a movement type.
+ *
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD_END
+ * @see org.eclipse.swt.SWT#MOVEMENT_WORD_START
+ * @see org.eclipse.swt.SWT#MOVEMENT_CHAR
+ * @see org.eclipse.swt.SWT#MOVEMENT_CLUSTER
+ *
+ * @since 3.3
+ */
+public interface MovementListener extends SWTEventListener {
+/**
+ * This method is called when a new offset is required based on the current
+ * offset and a movement type.
+ *
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.lineOffset line start offset (input)</li>
+ * <li>event.lineText line text (input)</li>
+ * <li>event.movement the movement type (input)</li>
+ * <li>event.offset the current offset (input)</li>
+ * <li>event.newOffset the new offset (input, output)</li>
+ * </ul>
+ *
+ * @param event the event
+ *
+ * @see MovementEvent
+ * @see StyledText#addWordMovementListener(MovementListener)
+ */
+public void getNextOffset (MovementEvent event);
+/**
+ * This method is called when a new offset is required based on the current
+ * offset and a movement type.
+ *
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.lineOffset line start offset (input)</li>
+ * <li>event.lineText line text (input)</li>
+ * <li>event.movement the movement type (input)</li>
+ * <li>event.offset the current offset (input)</li>
+ * <li>event.newOffset the new offset (input, output)</li>
+ * </ul>
+ *
+ * @param event the event
+ *
+ * @see MovementEvent
+ * @see StyledText#addWordMovementListener(MovementListener)
+ */
+public void getPreviousOffset (MovementEvent event);
+
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectEvent.java
new file mode 100644
index 0000000000..3c6a3ca545
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectEvent.java
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+
+/**
+ * This event is sent when an object needs to be drawn.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.2
+ */
+public class PaintObjectEvent extends TypedEvent {
+
+ /**
+ * the GC
+ */
+ public GC gc;
+
+ /**
+ * the x location
+ */
+ public int x;
+
+ /**
+ * the y location
+ */
+ public int y;
+
+ /**
+ * the line ascent
+ */
+ public int ascent;
+
+ /**
+ * the line descent
+ */
+ public int descent;
+
+ /**
+ * the StyleRange
+ */
+ public StyleRange style;
+
+ /**
+ * the Bullet
+ */
+ public Bullet bullet;
+
+ /**
+ * the bullet index
+ */
+ public int bulletIndex;
+
+ static final long serialVersionUID = 3906081274027192855L;
+
+/**
+ * Constructs a new instance of this class based on the
+ * information in the given event.
+ *
+ * @param e the event containing the information
+ */
+public PaintObjectEvent(StyledTextEvent e) {
+ super(e);
+ gc = e.gc;
+ x = e.x;
+ y = e.y;
+ ascent = e.ascent;
+ descent = e.descent;
+ style = e.style;
+ bullet = e.bullet;
+ bulletIndex = e.bulletIndex;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectListener.java
new file mode 100644
index 0000000000..fc8ac01b5b
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PaintObjectListener.java
@@ -0,0 +1,40 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.internal.SWTEventListener;
+/**
+ * This listener is invoked when an object needs to be drawn.
+ *
+ * @since 3.2
+ */
+public interface PaintObjectListener extends SWTEventListener {
+/**
+ * This method is called when an object needs to be drawn.
+ *
+ * <p>
+ * The following event fields are used:<ul>
+ * <li>event.x the x location (input)</li>
+ * <li>event.y the y location (input)</li>
+ * <li>event.ascent the line ascent (input)</li>
+ * <li>event.descent the line descent (input)</li>
+ * <li>event.gc the gc (input)</li>
+ * <li>event.style the style (input)</li>
+ * </ul>
+ *
+ * @param event the event
+ *
+ * @see PaintObjectEvent
+ * @see StyledText#addPaintObjectListener(PaintObjectListener)
+ */
+public void paintObject(PaintObjectEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PopupList.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PopupList.java
new file mode 100755
index 0000000000..c3bb6f073d
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/PopupList.java
@@ -0,0 +1,274 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+* A PopupList is a list of selectable items that appears in its own shell positioned above
+* its parent shell. It is used for selecting items when editing a Table cell (similar to the
+* list that appears when you open a Combo box).
+*
+* The list will be positioned so that it does not run off the screen and the largest number of items
+* are visible. It may appear above the current cursor location or below it depending how close you
+* are to the edge of the screen.
+*
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+*/
+public class PopupList {
+ Shell shell;
+ List list;
+ int minimumWidth;
+/**
+* Creates a PopupList above the specified shell.
+*
+* @param parent a Shell control which will be the parent of the new instance (cannot be null)
+*/
+public PopupList(Shell parent) {
+ this (parent, 0);
+}
+/**
+* Creates a PopupList above the specified shell.
+*
+* @param parent a widget which will be the parent of the new instance (cannot be null)
+* @param style the style of widget to construct
+*
+* @since 3.0
+*/
+public PopupList(Shell parent, int style) {
+ shell = new Shell(parent, checkStyle(style));
+
+ list = new List(shell, SWT.SINGLE | SWT.V_SCROLL);
+
+ // close dialog if user selects outside of the shell
+ shell.addListener(SWT.Deactivate, new Listener() {
+ public void handleEvent(Event e){
+ shell.setVisible (false);
+ }
+ });
+
+ // resize shell when list resizes
+ shell.addControlListener(new ControlListener() {
+ public void controlMoved(ControlEvent e){}
+ public void controlResized(ControlEvent e){
+ Rectangle shellSize = shell.getClientArea();
+ list.setSize(shellSize.width, shellSize.height);
+ }
+ });
+
+ // return list selection on Mouse Up or Carriage Return
+ list.addMouseListener(new MouseListener() {
+ public void mouseDoubleClick(MouseEvent e){}
+ public void mouseDown(MouseEvent e){}
+ public void mouseUp(MouseEvent e){
+ shell.setVisible (false);
+ }
+ });
+ list.addKeyListener(new KeyListener() {
+ public void keyReleased(KeyEvent e){}
+ public void keyPressed(KeyEvent e){
+ if (e.character == '\r'){
+ shell.setVisible (false);
+ }
+ }
+ });
+
+}
+private static int checkStyle (int style) {
+ int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ return style & mask;
+}
+/**
+* Gets the widget font.
+* <p>
+* @return the widget font
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public Font getFont () {
+ return list.getFont();
+}
+/**
+* Gets the items.
+* <p>
+* This operation will fail if the items cannot
+* be queried from the OS.
+*
+* @return the items in the widget
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public String[] getItems () {
+ return list.getItems();
+}
+/**
+* Gets the minimum width of the list.
+*
+* @return the minimum width of the list
+*/
+public int getMinimumWidth () {
+ return minimumWidth;
+}
+/**
+* Launches the Popup List, waits for an item to be selected and then closes the PopupList.
+*
+* @param rect the initial size and location of the PopupList; the dialog will be
+* positioned so that it does not run off the screen and the largest number of items are visible
+*
+* @return the text of the selected item or null if no item is selected
+*/
+public String open (Rectangle rect) {
+
+ Point listSize = list.computeSize (rect.width, SWT.DEFAULT, false);
+ Rectangle screenSize = shell.getDisplay().getBounds();
+
+ // Position the dialog so that it does not run off the screen and the largest number of items are visible
+ int spaceBelow = screenSize.height - (rect.y + rect.height) - 30;
+ int spaceAbove = rect.y - 30;
+
+ int y = 0;
+ if (spaceAbove > spaceBelow && listSize.y > spaceBelow) {
+ // place popup list above table cell
+ if (listSize.y > spaceAbove){
+ listSize.y = spaceAbove;
+ } else {
+ listSize.y += 2;
+ }
+ y = rect.y - listSize.y;
+
+ } else {
+ // place popup list below table cell
+ if (listSize.y > spaceBelow){
+ listSize.y = spaceBelow;
+ } else {
+ listSize.y += 2;
+ }
+ y = rect.y + rect.height;
+ }
+
+ // Make dialog as wide as the cell
+ listSize.x = rect.width;
+ // dialog width should not be less than minimumWidth
+ if (listSize.x < minimumWidth)
+ listSize.x = minimumWidth;
+
+ // Align right side of dialog with right side of cell
+ int x = rect.x + rect.width - listSize.x;
+
+ shell.setBounds(x, y, listSize.x, listSize.y);
+
+ shell.open();
+ list.setFocus();
+
+ Display display = shell.getDisplay();
+ while (!shell.isDisposed () && shell.isVisible ()) {
+ if (!display.readAndDispatch()) display.sleep();
+ }
+
+ String result = null;
+ if (!shell.isDisposed ()) {
+ String [] strings = list.getSelection ();
+ shell.dispose();
+ if (strings.length != 0) result = strings [0];
+ }
+ return result;
+}
+/**
+* Selects an item with text that starts with specified String.
+* <p>
+* If the item is not currently selected, it is selected.
+* If the item at an index is selected, it remains selected.
+* If the string is not matched, it is ignored.
+*
+* @param string the text of the item
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public void select(String string) {
+ String[] items = list.getItems();
+
+ // find the first entry in the list that starts with the
+ // specified string
+ if (string != null){
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].startsWith(string)){
+ int index = list.indexOf(items[i]);
+ list.select(index);
+ break;
+ }
+ }
+ }
+}
+/**
+* Sets the widget font.
+* <p>
+* When new font is null, the font reverts
+* to the default system font for the widget.
+*
+* @param font the new font (or null)
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public void setFont (Font font) {
+ list.setFont(font);
+}
+/**
+* Sets all items.
+* <p>
+* The previous selection is cleared.
+* The previous items are deleted.
+* The new items are added.
+* The top index is set to 0.
+*
+* @param strings the array of items
+*
+* This operation will fail when an item is null
+* or could not be added in the OS.
+*
+* @exception IllegalArgumentException <ul>
+* <li>ERROR_NULL_ARGUMENT - if the items array is null</li>
+* <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li>
+* </ul>
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public void setItems (String[] strings) {
+ list.setItems(strings);
+}
+/**
+* Sets the minimum width of the list.
+*
+* @param width the minimum width of the list
+*/
+public void setMinimumWidth (int width) {
+ if (width < 0)
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+
+ minimumWidth = width;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ST.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ST.java
new file mode 100755
index 0000000000..77276975cc
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ST.java
@@ -0,0 +1,140 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+/**
+ * This class provides access to the public constants provided by <code>StyledText</code>.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class ST {
+
+ /*
+ * Navigation Key Actions. Key bindings for the actions are set
+ * by the StyledText widget.
+ */
+ public static final int LINE_UP = 16777217; // binding = SWT.ARROW_UP
+ public static final int LINE_DOWN = 16777218; // binding = SWT.ARROW_DOWN
+ public static final int LINE_START = 16777223; // binding = SWT.HOME
+ public static final int LINE_END = 16777224; // binding = SWT.END
+ public static final int COLUMN_PREVIOUS = 16777219; // binding = SWT.ARROW_LEFT
+ public static final int COLUMN_NEXT = 16777220; // binding = SWT.ARROW_RIGHT
+ public static final int PAGE_UP = 16777221; // binding = SWT.PAGE_UP
+ public static final int PAGE_DOWN = 16777222; // binding = SWT.PAGE_DOWN
+ public static final int WORD_PREVIOUS = 17039363; // binding = SWT.MOD1 + SWT.ARROW_LEFT
+ public static final int WORD_NEXT = 17039364; // binding = SWT.MOD1 + SWT.ARROW_RIGHT
+ public static final int TEXT_START = 17039367; // binding = SWT.MOD1 + SWT.HOME
+ public static final int TEXT_END = 17039368; // binding = SWT.MOD1 + SWT.END
+ public static final int WINDOW_START = 17039365; // binding = SWT.MOD1 + SWT.PAGE_UP
+ public static final int WINDOW_END = 17039366; // binding = SWT.MOD1 + SWT.PAGE_DOWN
+
+ /*
+ * Selection Key Actions
+ */
+ public static final int SELECT_ALL = 262209; // binding = SWT.MOD1 + 'A'
+ public static final int SELECT_LINE_UP = 16908289; // binding = SWT.MOD2 + SWT.ARROW_UP
+ public static final int SELECT_LINE_DOWN = 16908290; // binding = SWT.MOD2 + SWT.ARROW_DOWN
+ public static final int SELECT_LINE_START = 16908295; // binding = SWT.MOD2 + SWT.HOME
+ public static final int SELECT_LINE_END = 16908296; // binding = SWT.MOD2 + SWT.END
+ public static final int SELECT_COLUMN_PREVIOUS = 16908291; // binding = SWT.MOD2 + SWT.ARROW_LEFT
+ public static final int SELECT_COLUMN_NEXT = 16908292; // binding = SWT.MOD2 + SWT.ARROW_RIGHT
+ public static final int SELECT_PAGE_UP = 16908293; // binding = SWT.MOD2 + SWT.PAGE_UP
+ public static final int SELECT_PAGE_DOWN = 16908294; // binding = SWT.MOD2 + SWT.PAGE_DOWN
+ public static final int SELECT_WORD_PREVIOUS = 17170435; // binding = SWT.MOD1 + SWT.MOD2 + SWT.ARROW_LEFT
+ public static final int SELECT_WORD_NEXT = 17170436; // binding = SWT.MOD1 + SWT.MOD2 + SWT.ARROW_RIGHT
+ public static final int SELECT_TEXT_START = 17170439; // binding = SWT.MOD1 + SWT.MOD2 + SWT.HOME
+ public static final int SELECT_TEXT_END = 17170440; // binding = SWT.MOD1 + SWT.MOD2 + SWT.END
+ public static final int SELECT_WINDOW_START = 17170437; // binding = SWT.MOD1 + SWT.MOD2 + SWT.PAGE_UP
+ public static final int SELECT_WINDOW_END = 17170438; // binding = SWT.MOD1 + SWT.MOD2 + SWT.PAGE_DOWN
+
+ /*
+ * Modification Key Actions
+ */
+ public static final int CUT = 131199; // binding = SWT.MOD2 + SWT.DEL
+ public static final int COPY = 17039369; // binding = SWT.MOD1 + SWT.INSERT;
+ public static final int PASTE = 16908297; // binding = SWT.MOD2 + SWT.INSERT ;
+ public static final int DELETE_PREVIOUS = '\b'; // binding = SWT.BS;
+ public static final int DELETE_NEXT = 0x7F; // binding = SWT.DEL;
+ public static final int DELETE_WORD_PREVIOUS = 262152; // binding = SWT.BS | SWT.MOD1;
+ public static final int DELETE_WORD_NEXT = 262271; // binding = SWT.DEL | SWT.MOD1;
+
+ /*
+ * Miscellaneous Key Actions
+ */
+ public static final int TOGGLE_OVERWRITE = 16777225; // binding = SWT.INSERT;
+
+ /**
+ * TEMPORARY CODE - API SUBJECT TO CHANGE
+ *
+ * Toggle block selection mode
+ *
+ * @since 3.5
+ */
+ public static final int TOGGLE_BLOCKSELECTION = 16777226;
+
+ /**
+ * Bullet style dot.
+ *
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_DOT = 1 << 0;
+
+ /**
+ * Bullet style number.
+ *
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_NUMBER = 1 << 1;
+
+ /**
+ * Bullet style lower case letter.
+ *
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_LETTER_LOWER = 1 << 2;
+
+ /**
+ * Bullet style upper case letter.
+ *
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_LETTER_UPPER = 1 << 3;
+
+ /**
+ * Bullet style text.
+ *
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_TEXT = 1 << 4;
+
+ /**
+ * Bullet style custom draw.
+ *
+ * @see StyledText#addPaintObjectListener(PaintObjectListener)
+ * @see StyledText#removePaintObjectListener(PaintObjectListener)
+ * @see Bullet
+ *
+ * @since 3.2
+ */
+ public static final int BULLET_CUSTOM = 1 << 5;
+
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashForm.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashForm.java
new file mode 100755
index 0000000000..232652d665
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashForm.java
@@ -0,0 +1,446 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.graphics.*;
+
+/**
+ * The SashForm is a composite control that lays out its children in a
+ * row or column arrangement (as specified by the orientation) and places
+ * a Sash between each child. One child may be maximized to occupy the
+ * entire size of the SashForm. The relative sizes of the children may
+ * be specified using weights.
+ * <p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>HORIZONTAL, VERTICAL, SMOOTH</dd>
+ * </dl>
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#sashform">SashForm snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: CustomControlExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class SashForm extends Composite {
+
+ /**
+ * The width of all sashes in the form.
+ */
+ public int SASH_WIDTH = 3;
+
+ int sashStyle;
+ Sash[] sashes = new Sash[0];
+ // Remember background and foreground
+ // colors to determine whether to set
+ // sashes to the default color (null) or
+ // a specific color
+ Color background = null;
+ Color foreground = null;
+ Control[] controls = new Control[0];
+ Control maxControl = null;
+ Listener sashListener;
+ static final int DRAG_MINIMUM = 20;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#HORIZONTAL
+ * @see SWT#VERTICAL
+ * @see #getStyle()
+ */
+public SashForm(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ super.setLayout(new SashFormLayout());
+ sashStyle = ((style & SWT.VERTICAL) != 0) ? SWT.HORIZONTAL : SWT.VERTICAL;
+ if ((style & SWT.BORDER) != 0) sashStyle |= SWT.BORDER;
+ if ((style & SWT.SMOOTH) != 0) sashStyle |= SWT.SMOOTH;
+ sashListener = new Listener() {
+ public void handleEvent(Event e) {
+ onDragSash(e);
+ }
+ };
+}
+static int checkStyle (int style) {
+ int mask = SWT.BORDER | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ return style & mask;
+}
+Sash createSash() {
+ Sash sash = new Sash(this, sashStyle);
+ sash.setBackground(background);
+ sash.setForeground(foreground);
+ sash.setToolTipText(getToolTipText());
+ sash.addListener(SWT.Selection, sashListener);
+ return sash;
+}
+/**
+ * Returns SWT.HORIZONTAL if the controls in the SashForm are laid out side by side
+ * or SWT.VERTICAL if the controls in the SashForm are laid out top to bottom.
+ *
+ * @return SWT.HORIZONTAL or SWT.VERTICAL
+ */
+public int getOrientation() {
+ //checkWidget();
+ return (sashStyle & SWT.VERTICAL) != 0 ? SWT.HORIZONTAL : SWT.VERTICAL;
+}
+/**
+ * Returns the width of the sashes when the controls in the SashForm are
+ * laid out.
+ *
+ * @return the width of the sashes
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public int getSashWidth() {
+ checkWidget();
+ return SASH_WIDTH;
+}
+public int getStyle() {
+ int style = super.getStyle();
+ style |= getOrientation() == SWT.VERTICAL ? SWT.VERTICAL : SWT.HORIZONTAL;
+ if ((sashStyle & SWT.SMOOTH) != 0) style |= SWT.SMOOTH;
+ return style;
+}
+/**
+ * Answer the control that currently is maximized in the SashForm.
+ * This value may be null.
+ *
+ * @return the control that currently is maximized or null
+ */
+public Control getMaximizedControl(){
+ //checkWidget();
+ return this.maxControl;
+}
+/**
+ * Answer the relative weight of each child in the SashForm. The weight represents the
+ * percent of the total width (if SashForm has Horizontal orientation) or
+ * total height (if SashForm has Vertical orientation) each control occupies.
+ * The weights are returned in order of the creation of the widgets (weight[0]
+ * corresponds to the weight of the first child created).
+ *
+ * @return the relative weight of each child
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+
+public int[] getWeights() {
+ checkWidget();
+ Control[] cArray = getControls(false);
+ int[] ratios = new int[cArray.length];
+ for (int i = 0; i < cArray.length; i++) {
+ Object data = cArray[i].getLayoutData();
+ if (data != null && data instanceof SashFormData) {
+ ratios[i] = (int)(((SashFormData)data).weight * 1000 >> 16);
+ } else {
+ ratios[i] = 200;
+ }
+ }
+ return ratios;
+}
+Control[] getControls(boolean onlyVisible) {
+ Control[] children = getChildren();
+ Control[] result = new Control[0];
+ for (int i = 0; i < children.length; i++) {
+ if (children[i] instanceof Sash) continue;
+ if (onlyVisible && !children[i].getVisible()) continue;
+
+ Control[] newResult = new Control[result.length + 1];
+ System.arraycopy(result, 0, newResult, 0, result.length);
+ newResult[result.length] = children[i];
+ result = newResult;
+ }
+ return result;
+}
+void onDragSash(Event event) {
+ Sash sash = (Sash)event.widget;
+ int sashIndex = -1;
+ for (int i= 0; i < sashes.length; i++) {
+ if (sashes[i] == sash) {
+ sashIndex = i;
+ break;
+ }
+ }
+ if (sashIndex == -1) return;
+
+ Control c1 = controls[sashIndex];
+ Control c2 = controls[sashIndex + 1];
+ Rectangle b1 = c1.getBounds();
+ Rectangle b2 = c2.getBounds();
+
+ Rectangle sashBounds = sash.getBounds();
+ Rectangle area = getClientArea();
+ boolean correction = false;
+ if (getOrientation() == SWT.HORIZONTAL) {
+ correction = b1.width < DRAG_MINIMUM || b2.width < DRAG_MINIMUM;
+ int totalWidth = b2.x + b2.width - b1.x;
+ int shift = event.x - sashBounds.x;
+ b1.width += shift;
+ b2.x += shift;
+ b2.width -= shift;
+ if (b1.width < DRAG_MINIMUM) {
+ b1.width = DRAG_MINIMUM;
+ b2.x = b1.x + b1.width + sashBounds.width;
+ b2.width = totalWidth - b2.x;
+ event.x = b1.x + b1.width;
+ event.doit = false;
+ }
+ if (b2.width < DRAG_MINIMUM) {
+ b1.width = totalWidth - DRAG_MINIMUM - sashBounds.width;
+ b2.x = b1.x + b1.width + sashBounds.width;
+ b2.width = DRAG_MINIMUM;
+ event.x = b1.x + b1.width;
+ event.doit = false;
+ }
+ Object data1 = c1.getLayoutData();
+ if (data1 == null || !(data1 instanceof SashFormData)) {
+ data1 = new SashFormData();
+ c1.setLayoutData(data1);
+ }
+ Object data2 = c2.getLayoutData();
+ if (data2 == null || !(data2 instanceof SashFormData)) {
+ data2 = new SashFormData();
+ c2.setLayoutData(data2);
+ }
+ ((SashFormData)data1).weight = (((long)b1.width << 16) + area.width - 1) / area.width;
+ ((SashFormData)data2).weight = (((long)b2.width << 16) + area.width - 1) / area.width;
+ } else {
+ correction = b1.height < DRAG_MINIMUM || b2.height < DRAG_MINIMUM;
+ int totalHeight = b2.y + b2.height - b1.y;
+ int shift = event.y - sashBounds.y;
+ b1.height += shift;
+ b2.y += shift;
+ b2.height -= shift;
+ if (b1.height < DRAG_MINIMUM) {
+ b1.height = DRAG_MINIMUM;
+ b2.y = b1.y + b1.height + sashBounds.height;
+ b2.height = totalHeight - b2.y;
+ event.y = b1.y + b1.height;
+ event.doit = false;
+ }
+ if (b2.height < DRAG_MINIMUM) {
+ b1.height = totalHeight - DRAG_MINIMUM - sashBounds.height;
+ b2.y = b1.y + b1.height + sashBounds.height;
+ b2.height = DRAG_MINIMUM;
+ event.y = b1.y + b1.height;
+ event.doit = false;
+ }
+ Object data1 = c1.getLayoutData();
+ if (data1 == null || !(data1 instanceof SashFormData)) {
+ data1 = new SashFormData();
+ c1.setLayoutData(data1);
+ }
+ Object data2 = c2.getLayoutData();
+ if (data2 == null || !(data2 instanceof SashFormData)) {
+ data2 = new SashFormData();
+ c2.setLayoutData(data2);
+ }
+ ((SashFormData)data1).weight = (((long)b1.height << 16) + area.height - 1) / area.height;
+ ((SashFormData)data2).weight = (((long)b2.height << 16) + area.height - 1) / area.height;
+ }
+ if (correction || (event.doit && event.detail != SWT.DRAG)) {
+ c1.setBounds(b1);
+ sash.setBounds(event.x, event.y, event.width, event.height);
+ c2.setBounds(b2);
+ }
+}
+/**
+ * If orientation is SWT.HORIZONTAL, lay the controls in the SashForm
+ * out side by side. If orientation is SWT.VERTICAL, lay the
+ * controls in the SashForm out top to bottom.
+ *
+ * @param orientation SWT.HORIZONTAL or SWT.VERTICAL
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the value of orientation is not SWT.HORIZONTAL or SWT.VERTICAL
+ * </ul>
+ */
+public void setOrientation(int orientation) {
+ checkWidget();
+ if (getOrientation() == orientation) return;
+ if (orientation != SWT.HORIZONTAL && orientation != SWT.VERTICAL) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ sashStyle &= ~(SWT.HORIZONTAL | SWT.VERTICAL);
+ sashStyle |= orientation == SWT.VERTICAL ? SWT.HORIZONTAL : SWT.VERTICAL;
+ for (int i = 0; i < sashes.length; i++) {
+ sashes[i].dispose();
+ sashes[i] = createSash();
+ }
+ layout(false);
+}
+public void setBackground (Color color) {
+ super.setBackground(color);
+ background = color;
+ for (int i = 0; i < sashes.length; i++) {
+ sashes[i].setBackground(background);
+ }
+}
+public void setForeground (Color color) {
+ super.setForeground(color);
+ foreground = color;
+ for (int i = 0; i < sashes.length; i++) {
+ sashes[i].setForeground(foreground);
+ }
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget();
+ return;
+}
+/**
+ * Specify the control that should take up the entire client area of the SashForm.
+ * If one control has been maximized, and this method is called with a different control,
+ * the previous control will be minimized and the new control will be maximized.
+ * If the value of control is null, the SashForm will minimize all controls and return to
+ * the default layout where all controls are laid out separated by sashes.
+ *
+ * @param control the control to be maximized or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMaximizedControl(Control control){
+ checkWidget();
+ if (control == null) {
+ if (maxControl != null) {
+ this.maxControl = null;
+ layout(false);
+ for (int i= 0; i < sashes.length; i++){
+ sashes[i].setVisible(true);
+ }
+ }
+ return;
+ }
+
+ for (int i= 0; i < sashes.length; i++){
+ sashes[i].setVisible(false);
+ }
+ maxControl = control;
+ layout(false);
+}
+
+/**
+ * Specify the width of the sashes when the controls in the SashForm are
+ * laid out.
+ *
+ * @param width the width of the sashes
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setSashWidth(int width) {
+ checkWidget();
+ if (SASH_WIDTH == width) return;
+ SASH_WIDTH = width;
+ layout(false);
+}
+public void setToolTipText(String string) {
+ super.setToolTipText(string);
+ for (int i = 0; i < sashes.length; i++) {
+ sashes[i].setToolTipText(string);
+ }
+}
+/**
+ * Specify the relative weight of each child in the SashForm. This will determine
+ * what percent of the total width (if SashForm has Horizontal orientation) or
+ * total height (if SashForm has Vertical orientation) each control will occupy.
+ * The weights must be positive values and there must be an entry for each
+ * non-sash child of the SashForm.
+ *
+ * @param weights the relative weight of each child
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the weights value is null or of incorrect length (must match the number of children)</li>
+ * </ul>
+ */
+public void setWeights(int[] weights) {
+ checkWidget();
+ Control[] cArray = getControls(false);
+ if (weights == null || weights.length != cArray.length) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+
+ int total = 0;
+ for (int i = 0; i < weights.length; i++) {
+ if (weights[i] < 0) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ total += weights[i];
+ }
+ if (total == 0) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ for (int i = 0; i < cArray.length; i++) {
+ Object data = cArray[i].getLayoutData();
+ if (data == null || !(data instanceof SashFormData)) {
+ data = new SashFormData();
+ cArray[i].setLayoutData(data);
+ }
+ ((SashFormData)data).weight = (((long)weights[i] << 16) + total - 1) / total;
+ }
+
+ layout(false);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormData.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormData.java
new file mode 100644
index 0000000000..eea3b39638
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormData.java
@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+class SashFormData {
+
+ long weight;
+
+String getName () {
+ String string = getClass ().getName ();
+ int index = string.lastIndexOf ('.');
+ if (index == -1) return string;
+ return string.substring (index + 1, string.length ());
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the event
+ */
+public String toString () {
+ return getName()+" {weight="+weight+"}"; //$NON-NLS-2$
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormLayout.java
new file mode 100644
index 0000000000..f01d0a2c16
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/SashFormLayout.java
@@ -0,0 +1,192 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for SashForm
+ *
+ * @see SashForm
+ */
+class SashFormLayout extends Layout {
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ SashForm sashForm = (SashForm)composite;
+ Control[] cArray = sashForm.getControls(true);
+ int width = 0;
+ int height = 0;
+ if (cArray.length == 0) {
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ return new Point(width, height);
+ }
+ // determine control sizes
+ boolean vertical = sashForm.getOrientation() == SWT.VERTICAL;
+ int maxIndex = 0;
+ int maxValue = 0;
+ for (int i = 0; i < cArray.length; i++) {
+ if (vertical) {
+ Point size = cArray[i].computeSize(wHint, SWT.DEFAULT, flushCache);
+ if (size.y > maxValue) {
+ maxIndex = i;
+ maxValue = size.y;
+ }
+ width = Math.max(width, size.x);
+ } else {
+ Point size = cArray[i].computeSize(SWT.DEFAULT, hHint, flushCache);
+ if (size.x > maxValue) {
+ maxIndex = i;
+ maxValue = size.x;
+ }
+ height = Math.max(height, size.y);
+ }
+ }
+ // get the ratios
+ long[] ratios = new long[cArray.length];
+ long total = 0;
+ for (int i = 0; i < cArray.length; i++) {
+ Object data = cArray[i].getLayoutData();
+ if (data != null && data instanceof SashFormData) {
+ ratios[i] = ((SashFormData)data).weight;
+ } else {
+ data = new SashFormData();
+ cArray[i].setLayoutData(data);
+ ((SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
+
+ }
+ total += ratios[i];
+ }
+ if (ratios[maxIndex] > 0) {
+ int sashwidth = sashForm.sashes.length > 0 ? sashForm.SASH_WIDTH + sashForm.sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
+ if (vertical) {
+ height += (int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
+ } else {
+ width += (int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
+ }
+ }
+ width += sashForm.getBorderWidth()*2;
+ height += sashForm.getBorderWidth()*2;
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ return new Point(width, height);
+}
+
+protected boolean flushCache(Control control) {
+ return true;
+}
+
+protected void layout(Composite composite, boolean flushCache) {
+ SashForm sashForm = (SashForm)composite;
+ Rectangle area = sashForm.getClientArea();
+ if (area.width <= 1 || area.height <= 1) return;
+
+ Control[] newControls = sashForm.getControls(true);
+ if (sashForm.controls.length == 0 && newControls.length == 0) return;
+ sashForm.controls = newControls;
+
+ Control[] controls = sashForm.controls;
+
+ if (sashForm.maxControl != null && !sashForm.maxControl.isDisposed()) {
+ for (int i= 0; i < controls.length; i++){
+ if (controls[i] != sashForm.maxControl) {
+ controls[i].setBounds(-200, -200, 0, 0);
+ } else {
+ controls[i].setBounds(area);
+ }
+ }
+ return;
+ }
+
+ // keep just the right number of sashes
+ if (sashForm.sashes.length < controls.length - 1) {
+ Sash[] newSashes = new Sash[controls.length - 1];
+ System.arraycopy(sashForm.sashes, 0, newSashes, 0, sashForm.sashes.length);
+ for (int i = sashForm.sashes.length; i < newSashes.length; i++) {
+ newSashes[i] = sashForm.createSash();
+ }
+ sashForm.sashes = newSashes;
+ }
+ if (sashForm.sashes.length > controls.length - 1) {
+ if (controls.length == 0) {
+ for (int i = 0; i < sashForm.sashes.length; i++) {
+ sashForm.sashes[i].dispose();
+ }
+ sashForm.sashes = new Sash[0];
+ } else {
+ Sash[] newSashes = new Sash[controls.length - 1];
+ System.arraycopy(sashForm.sashes, 0, newSashes, 0, newSashes.length);
+ for (int i = controls.length - 1; i < sashForm.sashes.length; i++) {
+ sashForm.sashes[i].dispose();
+ }
+ sashForm.sashes = newSashes;
+ }
+ }
+ if (controls.length == 0) return;
+ Sash[] sashes = sashForm.sashes;
+ // get the ratios
+ long[] ratios = new long[controls.length];
+ long total = 0;
+ for (int i = 0; i < controls.length; i++) {
+ Object data = controls[i].getLayoutData();
+ if (data != null && data instanceof SashFormData) {
+ ratios[i] = ((SashFormData)data).weight;
+ } else {
+ data = new SashFormData();
+ controls[i].setLayoutData(data);
+ ((SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
+
+ }
+ total += ratios[i];
+ }
+
+ int sashwidth = sashes.length > 0 ? sashForm.SASH_WIDTH + sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
+ if (sashForm.getOrientation() == SWT.HORIZONTAL) {
+ int width = (int)(ratios[0] * (area.width - sashes.length * sashwidth) / total);
+ int x = area.x;
+ controls[0].setBounds(x, area.y, width, area.height);
+ x += width;
+ for (int i = 1; i < controls.length - 1; i++) {
+ sashes[i - 1].setBounds(x, area.y, sashwidth, area.height);
+ x += sashwidth;
+ width = (int)(ratios[i] * (area.width - sashes.length * sashwidth) / total);
+ controls[i].setBounds(x, area.y, width, area.height);
+ x += width;
+ }
+ if (controls.length > 1) {
+ sashes[sashes.length - 1].setBounds(x, area.y, sashwidth, area.height);
+ x += sashwidth;
+ width = area.width - x;
+ controls[controls.length - 1].setBounds(x, area.y, width, area.height);
+ }
+ } else {
+ int height = (int)(ratios[0] * (area.height - sashes.length * sashwidth) / total);
+ int y = area.y;
+ controls[0].setBounds(area.x, y, area.width, height);
+ y += height;
+ for (int i = 1; i < controls.length - 1; i++) {
+ sashes[i - 1].setBounds(area.x, y, area.width, sashwidth);
+ y += sashwidth;
+ height = (int)(ratios[i] * (area.height - sashes.length * sashwidth) / total);
+ controls[i].setBounds(area.x, y, area.width, height);
+ y += height;
+ }
+ if (controls.length > 1) {
+ sashes[sashes.length - 1].setBounds(area.x, y, area.width, sashwidth);
+ y += sashwidth;
+ height = area.height - y;
+ controls[controls.length - 1].setBounds(area.x, y, area.width, height);
+ }
+
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledComposite.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledComposite.java
new file mode 100755
index 0000000000..f115784c4b
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledComposite.java
@@ -0,0 +1,700 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * A ScrolledComposite provides scrollbars and will scroll its content when the user
+ * uses the scrollbars.
+ *
+ *
+ * <p>There are two ways to use the ScrolledComposite:
+ *
+ * <p>
+ * 1) Set the size of the control that is being scrolled and the ScrolledComposite
+ * will show scrollbars when the contained control can not be fully seen.
+ *
+ * 2) The second way imitates the way a browser would work. Set the minimum size of
+ * the control and the ScrolledComposite will show scroll bars if the visible area is
+ * less than the minimum size of the control and it will expand the size of the control
+ * if the visible area is greater than the minimum size. This requires invoking
+ * both setMinWidth(), setMinHeight() and setExpandHorizontal(), setExpandVertical().
+ *
+ * <code><pre>
+ * public static void main (String [] args) {
+ * Display display = new Display ();
+ * Color red = display.getSystemColor(SWT.COLOR_RED);
+ * Color blue = display.getSystemColor(SWT.COLOR_BLUE);
+ * Shell shell = new Shell (display);
+ * shell.setLayout(new FillLayout());
+ *
+ * // set the size of the scrolled content - method 1
+ * final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
+ * final Composite c1 = new Composite(sc1, SWT.NONE);
+ * sc1.setContent(c1);
+ * c1.setBackground(red);
+ * GridLayout layout = new GridLayout();
+ * layout.numColumns = 4;
+ * c1.setLayout(layout);
+ * Button b1 = new Button (c1, SWT.PUSH);
+ * b1.setText("first button");
+ * c1.setSize(c1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
+ *
+ * // set the minimum width and height of the scrolled content - method 2
+ * final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
+ * sc2.setExpandHorizontal(true);
+ * sc2.setExpandVertical(true);
+ * final Composite c2 = new Composite(sc2, SWT.NONE);
+ * sc2.setContent(c2);
+ * c2.setBackground(blue);
+ * layout = new GridLayout();
+ * layout.numColumns = 4;
+ * c2.setLayout(layout);
+ * Button b2 = new Button (c2, SWT.PUSH);
+ * b2.setText("first button");
+ * sc2.setMinSize(c2.computeSize(SWT.DEFAULT, SWT.DEFAULT));
+ *
+ * Button add = new Button (shell, SWT.PUSH);
+ * add.setText("add children");
+ * final int[] index = new int[]{0};
+ * add.addListener(SWT.Selection, new Listener() {
+ * public void handleEvent(Event e) {
+ * index[0]++;
+ * Button button = new Button(c1, SWT.PUSH);
+ * button.setText("button "+index[0]);
+ * // reset size of content so children can be seen - method 1
+ * c1.setSize(c1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
+ * c1.layout();
+ *
+ * button = new Button(c2, SWT.PUSH);
+ * button.setText("button "+index[0]);
+ * // reset the minimum width and height so children can be seen - method 2
+ * sc2.setMinSize(c2.computeSize(SWT.DEFAULT, SWT.DEFAULT));
+ * c2.layout();
+ * }
+ * });
+ *
+ * shell.open ();
+ * while (!shell.isDisposed ()) {
+ * if (!display.readAndDispatch ()) display.sleep ();
+ * }
+ * display.dispose ();
+ * }
+ * </pre></code>
+ *
+ * <dl>
+ * <dt><b>Styles:</b><dd>H_SCROLL, V_SCROLL
+ * </dl>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#scrolledcomposite">ScrolledComposite snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class ScrolledComposite extends Composite {
+
+ Control content;
+ Listener contentListener;
+ Listener filter;
+
+ int minHeight = 0;
+ int minWidth = 0;
+ boolean expandHorizontal = false;
+ boolean expandVertical = false;
+ boolean alwaysShowScroll = false;
+ boolean showFocusedControl = false;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#H_SCROLL
+ * @see SWT#V_SCROLL
+ * @see #getStyle()
+ */
+public ScrolledComposite(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ super.setLayout(new ScrolledCompositeLayout());
+ ScrollBar hBar = getHorizontalBar ();
+ if (hBar != null) {
+ hBar.setVisible(false);
+ hBar.addListener (SWT.Selection, new Listener () {
+ public void handleEvent (Event e) {
+ hScroll();
+ }
+ });
+ }
+
+ ScrollBar vBar = getVerticalBar ();
+ if (vBar != null) {
+ vBar.setVisible(false);
+ vBar.addListener (SWT.Selection, new Listener () {
+ public void handleEvent (Event e) {
+ vScroll();
+ }
+ });
+ }
+
+ contentListener = new Listener() {
+ public void handleEvent(Event e) {
+ if (e.type != SWT.Resize) return;
+ layout(false);
+ }
+ };
+
+ filter = new Listener() {
+ public void handleEvent(Event event) {
+ if (event.widget instanceof Control) {
+ Control control = (Control) event.widget;
+ if (contains(control)) showControl(control);
+ }
+ }
+ };
+
+ addDisposeListener(new DisposeListener() {
+ public void widgetDisposed(DisposeEvent e) {
+ getDisplay().removeFilter(SWT.FocusIn, filter);
+ }
+ });
+}
+
+static int checkStyle (int style) {
+ int mask = SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ return style & mask;
+}
+
+boolean contains(Control control) {
+ if (control == null || control.isDisposed()) return false;
+
+ Composite parent = control.getParent();
+ while (parent != null && !(parent instanceof Shell)) {
+ if (this == parent) return true;
+ parent = parent.getParent();
+ }
+ return false;
+}
+
+/**
+ * Returns the Always Show Scrollbars flag. True if the scrollbars are
+ * always shown even if they are not required. False if the scrollbars are only
+ * visible when some part of the composite needs to be scrolled to be seen.
+ * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
+ * horizontal and vertical directions.
+ *
+ * @return the Always Show Scrollbars flag value
+ */
+public boolean getAlwaysShowScrollBars() {
+ //checkWidget();
+ return alwaysShowScroll;
+}
+
+/**
+ * Returns <code>true</code> if the content control
+ * will be expanded to fill available horizontal space.
+ *
+ * @return the receiver's horizontal expansion state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public boolean getExpandHorizontal() {
+ checkWidget();
+ return expandHorizontal;
+}
+
+/**
+ * Returns <code>true</code> if the content control
+ * will be expanded to fill available vertical space.
+ *
+ * @return the receiver's vertical expansion state
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public boolean getExpandVertical() {
+ checkWidget();
+ return expandVertical;
+}
+
+/**
+ * Returns the minimum width of the content control.
+ *
+ * @return the minimum width
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public int getMinWidth() {
+ checkWidget();
+ return minWidth;
+}
+
+/**
+ * Returns the minimum height of the content control.
+ *
+ * @return the minimum height
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public int getMinHeight() {
+ checkWidget();
+ return minHeight;
+}
+
+/**
+ * Get the content that is being scrolled.
+ *
+ * @return the control displayed in the content area
+ */
+public Control getContent() {
+ //checkWidget();
+ return content;
+}
+
+/**
+ * Returns <code>true</code> if the receiver automatically scrolls to a focused child control
+ * to make it visible. Otherwise, returns <code>false</code>.
+ *
+ * @return a boolean indicating whether focused child controls are automatically scrolled into the viewport
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public boolean getShowFocusedControl() {
+ checkWidget();
+ return showFocusedControl;
+}
+
+void hScroll() {
+ if (content == null) return;
+ Point location = content.getLocation ();
+ ScrollBar hBar = getHorizontalBar ();
+ int hSelection = hBar.getSelection ();
+ content.setLocation (-hSelection, location.y);
+}
+boolean needHScroll(Rectangle contentRect, boolean vVisible) {
+ ScrollBar hBar = getHorizontalBar();
+ if (hBar == null) return false;
+
+ Rectangle hostRect = getBounds();
+ int border = getBorderWidth();
+ hostRect.width -= 2*border;
+ ScrollBar vBar = getVerticalBar();
+ if (vVisible && vBar != null) hostRect.width -= vBar.getSize().x;
+
+ if (!expandHorizontal && contentRect.width > hostRect.width) return true;
+ if (expandHorizontal && minWidth > hostRect.width) return true;
+ return false;
+}
+
+boolean needVScroll(Rectangle contentRect, boolean hVisible) {
+ ScrollBar vBar = getVerticalBar();
+ if (vBar == null) return false;
+
+ Rectangle hostRect = getBounds();
+ int border = getBorderWidth();
+ hostRect.height -= 2*border;
+ ScrollBar hBar = getHorizontalBar();
+ if (hVisible && hBar != null) hostRect.height -= hBar.getSize().y;
+
+ if (!expandVertical && contentRect.height > hostRect.height) return true;
+ if (expandVertical && minHeight > hostRect.height) return true;
+ return false;
+}
+
+/**
+ * Return the point in the content that currently appears in the top left
+ * corner of the scrolled composite.
+ *
+ * @return the point in the content that currently appears in the top left
+ * corner of the scrolled composite. If no content has been set, this returns
+ * (0, 0).
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ */
+public Point getOrigin() {
+ checkWidget();
+ if (content == null) return new Point(0, 0);
+ Point location = content.getLocation();
+ return new Point(-location.x, -location.y);
+}
+/**
+ * Scrolls the content so that the specified point in the content is in the top
+ * left corner. If no content has been set, nothing will occur.
+ *
+ * Negative values will be ignored. Values greater than the maximum scroll
+ * distance will result in scrolling to the end of the scrollbar.
+ *
+ * @param origin the point on the content to appear in the top left corner
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * <li>ERROR_INVALID_ARGUMENT - value of origin is outside of content
+ * </ul>
+ * @since 2.0
+ */
+public void setOrigin(Point origin) {
+ setOrigin(origin.x, origin.y);
+}
+/**
+ * Scrolls the content so that the specified point in the content is in the top
+ * left corner. If no content has been set, nothing will occur.
+ *
+ * Negative values will be ignored. Values greater than the maximum scroll
+ * distance will result in scrolling to the end of the scrollbar.
+ *
+ * @param x the x coordinate of the content to appear in the top left corner
+ *
+ * @param y the y coordinate of the content to appear in the top left corner
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ */
+public void setOrigin(int x, int y) {
+ checkWidget();
+ if (content == null) return;
+ ScrollBar hBar = getHorizontalBar ();
+ if (hBar != null) {
+ hBar.setSelection(x);
+ x = -hBar.getSelection ();
+ } else {
+ x = 0;
+ }
+ ScrollBar vBar = getVerticalBar ();
+ if (vBar != null) {
+ vBar.setSelection(y);
+ y = -vBar.getSelection ();
+ } else {
+ y = 0;
+ }
+ content.setLocation(x, y);
+}
+/**
+ * Set the Always Show Scrollbars flag. True if the scrollbars are
+ * always shown even if they are not required. False if the scrollbars are only
+ * visible when some part of the composite needs to be scrolled to be seen.
+ * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
+ * horizontal and vertical directions.
+ *
+ * @param show true to show the scrollbars even when not required, false to show scrollbars only when required
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setAlwaysShowScrollBars(boolean show) {
+ checkWidget();
+ if (show == alwaysShowScroll) return;
+ alwaysShowScroll = show;
+ ScrollBar hBar = getHorizontalBar ();
+ if (hBar != null && alwaysShowScroll) hBar.setVisible(true);
+ ScrollBar vBar = getVerticalBar ();
+ if (vBar != null && alwaysShowScroll) vBar.setVisible(true);
+ layout(false);
+}
+
+/**
+ * Set the content that will be scrolled.
+ *
+ * @param content the control to be displayed in the content area
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setContent(Control content) {
+ checkWidget();
+ if (this.content != null && !this.content.isDisposed()) {
+ this.content.removeListener(SWT.Resize, contentListener);
+ this.content.setBounds(new Rectangle(-200, -200, 0, 0));
+ }
+
+ this.content = content;
+ ScrollBar vBar = getVerticalBar ();
+ ScrollBar hBar = getHorizontalBar ();
+ if (this.content != null) {
+ if (vBar != null) {
+ vBar.setMaximum (0);
+ vBar.setThumb (0);
+ vBar.setSelection(0);
+ }
+ if (hBar != null) {
+ hBar.setMaximum (0);
+ hBar.setThumb (0);
+ hBar.setSelection(0);
+ }
+ content.setLocation(0, 0);
+ layout(false);
+ this.content.addListener(SWT.Resize, contentListener);
+ } else {
+ if (hBar != null) hBar.setVisible(alwaysShowScroll);
+ if (vBar != null) vBar.setVisible(alwaysShowScroll);
+ }
+}
+/**
+ * Configure the ScrolledComposite to resize the content object to be as wide as the
+ * ScrolledComposite when the width of the ScrolledComposite is greater than the
+ * minimum width specified in setMinWidth. If the ScrolledComposite is less than the
+ * minimum width, the content will not be resized and instead the horizontal scroll bar will be
+ * used to view the entire width.
+ * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
+ *
+ * @param expand true to expand the content control to fill available horizontal space
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setExpandHorizontal(boolean expand) {
+ checkWidget();
+ if (expand == expandHorizontal) return;
+ expandHorizontal = expand;
+ layout(false);
+}
+/**
+ * Configure the ScrolledComposite to resize the content object to be as tall as the
+ * ScrolledComposite when the height of the ScrolledComposite is greater than the
+ * minimum height specified in setMinHeight. If the ScrolledComposite is less than the
+ * minimum height, the content will not be resized and instead the vertical scroll bar will be
+ * used to view the entire height.
+ * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
+ *
+ * @param expand true to expand the content control to fill available vertical space
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setExpandVertical(boolean expand) {
+ checkWidget();
+ if (expand == expandVertical) return;
+ expandVertical = expand;
+ layout(false);
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget();
+ return;
+}
+/**
+ * Specify the minimum height at which the ScrolledComposite will begin scrolling the
+ * content with the vertical scroll bar. This value is only relevant if
+ * setExpandVertical(true) has been set.
+ *
+ * @param height the minimum height or 0 for default height
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMinHeight(int height) {
+ setMinSize(minWidth, height);
+}
+/**
+ * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
+ * content with the horizontal scroll bar. This value is only relevant if
+ * setExpandHorizontal(true) and setExpandVertical(true) have been set.
+ *
+ * @param size the minimum size or null for the default size
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMinSize(Point size) {
+ if (size == null) {
+ setMinSize(0, 0);
+ } else {
+ setMinSize(size.x, size.y);
+ }
+}
+/**
+ * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
+ * content with the horizontal scroll bar. This value is only relevant if
+ * setExpandHorizontal(true) and setExpandVertical(true) have been set.
+ *
+ * @param width the minimum width or 0 for default width
+ * @param height the minimum height or 0 for default height
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMinSize(int width, int height) {
+ checkWidget();
+ if (width == minWidth && height == minHeight) return;
+ minWidth = Math.max(0, width);
+ minHeight = Math.max(0, height);
+ layout(false);
+}
+/**
+ * Specify the minimum width at which the ScrolledComposite will begin scrolling the
+ * content with the horizontal scroll bar. This value is only relevant if
+ * setExpandHorizontal(true) has been set.
+ *
+ * @param width the minimum width or 0 for default width
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setMinWidth(int width) {
+ setMinSize(width, minHeight);
+}
+
+/**
+ * Configure the receiver to automatically scroll to a focused child control
+ * to make it visible.
+ *
+ * If show is <code>false</code>, show a focused control is off.
+ * By default, show a focused control is off.
+ *
+ * @param show <code>true</code> to show a focused control.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setShowFocusedControl(boolean show) {
+ checkWidget();
+ if (showFocusedControl == show) return;
+ Display display = getDisplay();
+ display.removeFilter(SWT.FocusIn, filter);
+ showFocusedControl = show;
+ if (!showFocusedControl) return;
+ display.addFilter(SWT.FocusIn, filter);
+ Control control = display.getFocusControl();
+ if (contains(control)) showControl(control);
+}
+
+/**
+ * Scrolls the content of the receiver so that the control is visible.
+ *
+ * @param control the control to be shown
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the control is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void showControl(Control control) {
+ checkWidget ();
+ if (control == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (control.isDisposed ()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ if (!contains(control)) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+
+ Rectangle itemRect = getDisplay().map(control.getParent(), this, control.getBounds());
+ Rectangle area = getClientArea();
+ Point origin = getOrigin();
+ if (itemRect.x < 0) {
+ origin.x = Math.max(0, origin.x + itemRect.x);
+ } else {
+ if (area.width < itemRect.x + itemRect.width) origin.x = Math.max(0, origin.x + itemRect.x + Math.min(itemRect.width, area.width) - area.width);
+ }
+ if (itemRect.y < 0) {
+ origin.y = Math.max(0, origin.y + itemRect.y);
+ } else {
+ if (area.height < itemRect.y + itemRect.height) origin.y = Math.max(0, origin.y + itemRect.y + Math.min(itemRect.height, area.height) - area.height);
+ }
+ setOrigin(origin);
+}
+
+void vScroll() {
+ if (content == null) return;
+ Point location = content.getLocation ();
+ ScrollBar vBar = getVerticalBar ();
+ int vSelection = vBar.getSelection ();
+ content.setLocation (location.x, -vSelection);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledCompositeLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledCompositeLayout.java
new file mode 100644
index 0000000000..0af014860e
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ScrolledCompositeLayout.java
@@ -0,0 +1,112 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for ScrolledComposite
+ *
+ * @see ScrolledComposite
+ */
+class ScrolledCompositeLayout extends Layout {
+
+ boolean inLayout = false;
+ static final int DEFAULT_WIDTH = 64;
+ static final int DEFAULT_HEIGHT = 64;
+
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ ScrolledComposite sc = (ScrolledComposite)composite;
+ Point size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
+ if (sc.content != null) {
+ Point preferredSize = sc.content.computeSize(wHint, hHint, flushCache);
+ Point currentSize = sc.content.getSize();
+ size.x = sc.getExpandHorizontal() ? preferredSize.x : currentSize.x;
+ size.y = sc.getExpandVertical() ? preferredSize.y : currentSize.y;
+ }
+ size.x = Math.max(size.x, sc.minWidth);
+ size.y = Math.max(size.y, sc.minHeight);
+ if (wHint != SWT.DEFAULT) size.x = wHint;
+ if (hHint != SWT.DEFAULT) size.y = hHint;
+ return size;
+}
+
+protected boolean flushCache(Control control) {
+ return true;
+}
+
+protected void layout(Composite composite, boolean flushCache) {
+ if (inLayout) return;
+ ScrolledComposite sc = (ScrolledComposite)composite;
+ if (sc.content == null) return;
+ ScrollBar hBar = sc.getHorizontalBar();
+ ScrollBar vBar = sc.getVerticalBar();
+ if (hBar != null) {
+ if (hBar.getSize().y >= sc.getSize().y) {
+ return;
+ }
+ }
+ if (vBar != null) {
+ if (vBar.getSize().x >= sc.getSize().x) {
+ return;
+ }
+ }
+ inLayout = true;
+ Rectangle contentRect = sc.content.getBounds();
+ if (!sc.alwaysShowScroll) {
+ boolean hVisible = sc.needHScroll(contentRect, false);
+ boolean vVisible = sc.needVScroll(contentRect, hVisible);
+ if (!hVisible && vVisible) hVisible = sc.needHScroll(contentRect, vVisible);
+ if (hBar != null) hBar.setVisible(hVisible);
+ if (vBar != null) vBar.setVisible(vVisible);
+ }
+ Rectangle hostRect = sc.getClientArea();
+ if (sc.expandHorizontal) {
+ contentRect.width = Math.max(sc.minWidth, hostRect.width);
+ }
+ if (sc.expandVertical) {
+ contentRect.height = Math.max(sc.minHeight, hostRect.height);
+ }
+
+ if (hBar != null) {
+ hBar.setMaximum (contentRect.width);
+ hBar.setThumb (Math.min (contentRect.width, hostRect.width));
+ int hPage = contentRect.width - hostRect.width;
+ int hSelection = hBar.getSelection ();
+ if (hSelection >= hPage) {
+ if (hPage <= 0) {
+ hSelection = 0;
+ hBar.setSelection(0);
+ }
+ contentRect.x = -hSelection;
+ }
+ }
+
+ if (vBar != null) {
+ vBar.setMaximum (contentRect.height);
+ vBar.setThumb (Math.min (contentRect.height, hostRect.height));
+ int vPage = contentRect.height - hostRect.height;
+ int vSelection = vBar.getSelection ();
+ if (vSelection >= vPage) {
+ if (vPage <= 0) {
+ vSelection = 0;
+ vBar.setSelection(0);
+ }
+ contentRect.y = -vSelection;
+ }
+ }
+
+ sc.content.setBounds (contentRect);
+ inLayout = false;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StackLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StackLayout.java
new file mode 100755
index 0000000000..cc76e978ef
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StackLayout.java
@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This Layout stacks all the controls one on top of the other and resizes all controls
+ * to have the same size and location.
+ * The control specified in topControl is visible and all other controls are not visible.
+ * Users must set the topControl value to flip between the visible items and then call
+ * layout() on the composite which has the StackLayout.
+ *
+ * <p> Here is an example which places ten buttons in a stack layout and
+ * flips between them:
+ *
+ * <pre><code>
+ * public static void main(String[] args) {
+ * Display display = new Display();
+ * Shell shell = new Shell(display);
+ * shell.setLayout(new GridLayout());
+ *
+ * final Composite parent = new Composite(shell, SWT.NONE);
+ * parent.setLayoutData(new GridData(GridData.FILL_BOTH));
+ * final StackLayout layout = new StackLayout();
+ * parent.setLayout(layout);
+ * final Button[] bArray = new Button[10];
+ * for (int i = 0; i &lt; 10; i++) {
+ * bArray[i] = new Button(parent, SWT.PUSH);
+ * bArray[i].setText("Button "+i);
+ * }
+ * layout.topControl = bArray[0];
+ *
+ * Button b = new Button(shell, SWT.PUSH);
+ * b.setText("Show Next Button");
+ * final int[] index = new int[1];
+ * b.addListener(SWT.Selection, new Listener(){
+ * public void handleEvent(Event e) {
+ * index[0] = (index[0] + 1) % 10;
+ * layout.topControl = bArray[index[0]];
+ * parent.layout();
+ * }
+ * });
+ *
+ * shell.open();
+ * while (shell != null && !shell.isDisposed()) {
+ * if (!display.readAndDispatch())
+ * display.sleep();
+ * }
+ * }
+ * </code></pre>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#stacklayout">StackLayout snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: LayoutExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+
+public class StackLayout extends Layout {
+
+ /**
+ * marginWidth specifies the number of pixels of horizontal margin
+ * that will be placed along the left and right edges of the layout.
+ *
+ * The default value is 0.
+ */
+ public int marginWidth = 0;
+ /**
+ * marginHeight specifies the number of pixels of vertical margin
+ * that will be placed along the top and bottom edges of the layout.
+ *
+ * The default value is 0.
+ */
+ public int marginHeight = 0;
+
+ /**
+ * topControl the Control that is displayed at the top of the stack.
+ * All other controls that are children of the parent composite will not be visible.
+ */
+ public Control topControl;
+
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ Control children[] = composite.getChildren();
+ int maxWidth = 0;
+ int maxHeight = 0;
+ for (int i = 0; i < children.length; i++) {
+ Point size = children[i].computeSize(wHint, hHint, flushCache);
+ maxWidth = Math.max(size.x, maxWidth);
+ maxHeight = Math.max(size.y, maxHeight);
+ }
+ int width = maxWidth + 2 * marginWidth;
+ int height = maxHeight + 2 * marginHeight;
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ return new Point(width, height);
+}
+
+protected boolean flushCache(Control control) {
+ return true;
+}
+
+protected void layout(Composite composite, boolean flushCache) {
+ Control children[] = composite.getChildren();
+ Rectangle rect = composite.getClientArea();
+ rect.x += marginWidth;
+ rect.y += marginHeight;
+ rect.width -= 2 * marginWidth;
+ rect.height -= 2 * marginHeight;
+ for (int i = 0; i < children.length; i++) {
+ children[i].setBounds(rect);
+ children[i].setVisible(children[i] == topControl);
+
+ }
+}
+
+String getName () {
+ String string = getClass ().getName ();
+ int index = string.lastIndexOf ('.');
+ if (index == -1) return string;
+ return string.substring (index + 1, string.length ());
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the layout
+ */
+public String toString () {
+ String string = getName ()+" {";
+ if (marginWidth != 0) string += "marginWidth="+marginWidth+" ";
+ if (marginHeight != 0) string += "marginHeight="+marginHeight+" ";
+ if (topControl != null) string += "topControl="+topControl+" ";
+ string = string.trim();
+ string += "}";
+ return string;
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyleRange.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyleRange.java
new file mode 100755
index 0000000000..76469db5f9
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyleRange.java
@@ -0,0 +1,213 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.CloneableCompatibility;
+
+/**
+ * <code>StyleRange</code> defines a set of styles for a specified
+ * range of text.
+ * <p>
+ * The hashCode() method in this class uses the values of the public
+ * fields to compute the hash value. When storing instances of the
+ * class in hashed collections, do not modify these fields after the
+ * object has been inserted.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class StyleRange extends TextStyle implements CloneableCompatibility {
+
+ /**
+ * the start offset of the range, zero-based from the document start
+ */
+ public int start;
+
+ /**
+ * the length of the range
+ */
+ public int length;
+
+ /**
+ * the font style of the range. It may be a combination of
+ * SWT.NORMAL, SWT.ITALIC or SWT.BOLD
+ *
+ * Note: the font style is not used if the <code>font</code> attribute
+ * is set
+ */
+ public int fontStyle = SWT.NORMAL;
+
+/**
+ * Create a new style range with no styles
+ *
+ * @since 3.2
+ */
+public StyleRange() {
+}
+
+/**
+ * Create a new style range from an existing text style.
+ *
+ * @param style the text style to copy
+ *
+ * @since 3.4
+ */
+public StyleRange(TextStyle style) {
+ super(style);
+}
+
+/**
+ * Create a new style range.
+ *
+ * @param start start offset of the style
+ * @param length length of the style
+ * @param foreground foreground color of the style, null if none
+ * @param background background color of the style, null if none
+ */
+public StyleRange(int start, int length, Color foreground, Color background) {
+ super(null, foreground, background);
+ this.start = start;
+ this.length = length;
+}
+
+/**
+ * Create a new style range.
+ *
+ * @param start start offset of the style
+ * @param length length of the style
+ * @param foreground foreground color of the style, null if none
+ * @param background background color of the style, null if none
+ * @param fontStyle font style of the style, may be SWT.NORMAL, SWT.ITALIC or SWT.BOLD
+ */
+public StyleRange(int start, int length, Color foreground, Color background, int fontStyle) {
+ this(start, length, foreground, background);
+ this.fontStyle = fontStyle;
+}
+
+/**
+ * Compares the argument to the receiver, and returns true
+ * if they represent the <em>same</em> object using a class
+ * specific comparison.
+ *
+ * @param object the object to compare with this object
+ * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
+ *
+ * @see #hashCode()
+ */
+public boolean equals(Object object) {
+ if (object == this) return true;
+ if (object instanceof StyleRange) {
+ StyleRange style = (StyleRange)object;
+ if (start != style.start) return false;
+ if (length != style.length) return false;
+ return similarTo(style);
+ }
+ return false;
+}
+
+/**
+ * Returns an integer hash code for the receiver. Any two
+ * objects that return <code>true</code> when passed to
+ * <code>equals</code> must return the same value for this
+ * method.
+ *
+ * @return the receiver's hash
+ *
+ * @see #equals(Object)
+ */
+public int hashCode() {
+ return super.hashCode() ^ fontStyle;
+}
+boolean isVariableHeight() {
+ return font != null || metrics != null || rise != 0;
+}
+/**
+ * Returns whether or not the receiver is unstyled (i.e., does not have any
+ * style attributes specified).
+ *
+ * @return true if the receiver is unstyled, false otherwise.
+ */
+public boolean isUnstyled() {
+ if (font != null) return false;
+ if (rise != 0) return false;
+ if (metrics != null) return false;
+ if (foreground != null) return false;
+ if (background != null) return false;
+ if (fontStyle != SWT.NORMAL) return false;
+ if (underline) return false;
+ if (strikeout) return false;
+ if (borderStyle != SWT.NONE) return false;
+ return true;
+}
+
+/**
+ * Compares the specified object to this StyleRange and answer if the two
+ * are similar. The object must be an instance of StyleRange and have the
+ * same field values for except for start and length.
+ *
+ * @param style the object to compare with this object
+ * @return true if the objects are similar, false otherwise
+ */
+public boolean similarTo(StyleRange style) {
+ if (!super.equals(style)) return false;
+ if (fontStyle != style.fontStyle) return false;
+ return true;
+}
+
+/**
+ * Returns a new StyleRange with the same values as this StyleRange.
+ *
+ * @return a shallow copy of this StyleRange
+ */
+public Object clone() {
+ try {
+ return super.clone();
+ } catch (CloneNotSupportedException e) {
+ return null;
+ }
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the StyleRange
+ */
+public String toString() {
+ StringBuffer buffer = new StringBuffer();
+ buffer.append("StyleRange {");
+ buffer.append(start);
+ buffer.append(", ");
+ buffer.append(length);
+ buffer.append(", fontStyle=");
+ switch (fontStyle) {
+ case SWT.BOLD:
+ buffer.append("bold");
+ break;
+ case SWT.ITALIC:
+ buffer.append("italic");
+ break;
+ case SWT.BOLD | SWT.ITALIC:
+ buffer.append("bold-italic");
+ break;
+ default:
+ buffer.append("normal");
+ }
+ String str = super.toString();
+ int index = str.indexOf('{');
+ str = str.substring(index + 1);
+ if (str.length() > 1) buffer.append(", ");
+ buffer.append(str);
+ return buffer.toString();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledText.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledText.java
new file mode 100755
index 0000000000..50e1587b2e
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledText.java
@@ -0,0 +1,9475 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import java.util.*;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.accessibility.*;
+import org.eclipse.swt.dnd.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.*;
+import org.eclipse.swt.printing.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * A StyledText is an editable user interface object that displays lines
+ * of text. The following style attributes can be defined for the text:
+ * <ul>
+ * <li>foreground color
+ * <li>background color
+ * <li>font style (bold, italic, bold-italic, regular)
+ * <li>underline
+ * <li>strikeout
+ * </ul>
+ * <p>
+ * In addition to text style attributes, the background color of a line may
+ * be specified.
+ * </p><p>
+ * There are two ways to use this widget when specifying text style information.
+ * You may use the API that is defined for StyledText or you may define your own
+ * LineStyleListener. If you define your own listener, you will be responsible
+ * for maintaining the text style information for the widget. IMPORTANT: You may
+ * not define your own listener and use the StyledText API. The following
+ * StyledText API is not supported if you have defined a LineStyleListener:
+ * <ul>
+ * <li>getStyleRangeAtOffset(int)
+ * <li>getStyleRanges()
+ * <li>replaceStyleRanges(int,int,StyleRange[])
+ * <li>setStyleRange(StyleRange)
+ * <li>setStyleRanges(StyleRange[])
+ * </ul>
+ * </p><p>
+ * There are two ways to use this widget when specifying line background colors.
+ * You may use the API that is defined for StyledText or you may define your own
+ * LineBackgroundListener. If you define your own listener, you will be responsible
+ * for maintaining the line background color information for the widget.
+ * IMPORTANT: You may not define your own listener and use the StyledText API.
+ * The following StyledText API is not supported if you have defined a
+ * LineBackgroundListener:
+ * <ul>
+ * <li>getLineBackground(int)
+ * <li>setLineBackground(int,int,Color)
+ * </ul>
+ * </p><p>
+ * The content implementation for this widget may also be user-defined. To do so,
+ * you must implement the StyledTextContent interface and use the StyledText API
+ * setContent(StyledTextContent) to initialize the widget.
+ * </p><p>
+ * <dl>
+ * <dt><b>Styles:</b><dd>FULL_SELECTION, MULTI, READ_ONLY, SINGLE, WRAP
+ * <dt><b>Events:</b><dd>ExtendedModify, LineGetBackground, LineGetSegments, LineGetStyle, Modify, Selection, Verify, VerifyKey
+ * </dl>
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#styledtext">StyledText snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: CustomControlExample, TextEditor</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+public class StyledText extends Canvas {
+ static final char TAB = '\t';
+ static final String PlatformLineDelimiter = System.getProperty("line.separator");
+ static final int BIDI_CARET_WIDTH = 3;
+ static final int DEFAULT_WIDTH = 64;
+ static final int DEFAULT_HEIGHT = 64;
+ static final int V_SCROLL_RATE = 50;
+ static final int H_SCROLL_RATE = 10;
+
+ static final int ExtendedModify = 3000;
+ static final int LineGetBackground = 3001;
+ static final int LineGetStyle = 3002;
+ static final int TextChanging = 3003;
+ static final int TextSet = 3004;
+ static final int VerifyKey = 3005;
+ static final int TextChanged = 3006;
+ static final int LineGetSegments = 3007;
+ static final int PaintObject = 3008;
+ static final int WordNext = 3009;
+ static final int WordPrevious = 3010;
+ static final int CaretMoved = 3011;
+
+ static final int PREVIOUS_OFFSET_TRAILING = 0;
+ static final int OFFSET_LEADING = 1;
+
+ Color selectionBackground; // selection background color
+ Color selectionForeground; // selection foreground color
+ StyledTextContent content; // native content (default or user specified)
+ StyledTextRenderer renderer;
+ Listener listener;
+ TextChangeListener textChangeListener; // listener for TextChanging, TextChanged and TextSet events from StyledTextContent
+ int verticalScrollOffset = 0; // pixel based
+ int horizontalScrollOffset = 0; // pixel based
+ int topIndex = 0; // top visible line
+ int topIndexY;
+ int clientAreaHeight = 0; // the client area height. Needed to calculate content width for new visible lines during Resize callback
+ int clientAreaWidth = 0; // the client area width. Needed during Resize callback to determine if line wrap needs to be recalculated
+ int tabLength = 4; // number of characters in a tab
+ int leftMargin;
+ int topMargin;
+ int rightMargin;
+ int bottomMargin;
+ Color marginColor;
+ int columnX; // keep track of the horizontal caret position when changing lines/pages. Fixes bug 5935
+ int caretOffset;
+ int caretAlignment;
+ Point selection = new Point(0, 0); // x and y are start and end caret offsets of selection
+ Point clipboardSelection; // x and y are start and end caret offsets of previous selection
+ int selectionAnchor; // position of selection anchor. 0 based offset from beginning of text
+ Point doubleClickSelection; // selection after last mouse double click
+ boolean editable = true;
+ boolean wordWrap = false;
+ boolean doubleClickEnabled = true; // see getDoubleClickEnabled
+ boolean overwrite = false; // insert/overwrite edit mode
+ int textLimit = -1; // limits the number of characters the user can type in the widget. Unlimited by default.
+ Hashtable keyActionMap = new Hashtable();
+ Color background = null; // workaround for bug 4791
+ Color foreground = null; //
+ Clipboard clipboard;
+ int clickCount;
+ int autoScrollDirection = SWT.NULL; // the direction of autoscrolling (up, down, right, left)
+ int autoScrollDistance = 0;
+ int lastTextChangeStart; // cache data of the
+ int lastTextChangeNewLineCount; // last text changing
+ int lastTextChangeNewCharCount; // event for use in the
+ int lastTextChangeReplaceLineCount; // text changed handler
+ int lastTextChangeReplaceCharCount;
+ int lastCharCount = 0;
+ int lastLineBottom; // the bottom pixel of the last line been replaced
+ boolean isMirrored;
+ boolean bidiColoring = false; // apply the BIDI algorithm on text segments of the same color
+ Image leftCaretBitmap = null;
+ Image rightCaretBitmap = null;
+ int caretDirection = SWT.NULL;
+ int caretWidth = 0;
+ Caret defaultCaret = null;
+ boolean updateCaretDirection = true;
+ boolean fixedLineHeight;
+ boolean dragDetect = true;
+ IME ime;
+ Cursor cursor;
+ int alignment;
+ boolean justify;
+ int indent;
+ int lineSpacing;
+ int alignmentMargin;
+
+ //block selection
+ boolean blockSelection;
+ int blockXAnchor = -1, blockYAnchor = -1;
+ int blockXLocation = -1, blockYLocation = -1;
+
+
+ final static boolean IS_MAC, IS_GTK, IS_MOTIF;
+ static {
+ String platform = SWT.getPlatform();
+ IS_MAC = "carbon".equals(platform) || "cocoa".equals(platform);
+ IS_GTK = "gtk".equals(platform);
+ IS_MOTIF = "motif".equals(platform);
+ }
+
+ /**
+ * The Printing class implements printing of a range of text.
+ * An instance of <code>Printing</code> is returned in the
+ * StyledText#print(Printer) API. The run() method may be
+ * invoked from any thread.
+ */
+ static class Printing implements Runnable {
+ final static int LEFT = 0; // left aligned header/footer segment
+ final static int CENTER = 1; // centered header/footer segment
+ final static int RIGHT = 2; // right aligned header/footer segment
+
+ Printer printer;
+ StyledTextRenderer printerRenderer;
+ StyledTextPrintOptions printOptions;
+ Rectangle clientArea;
+ FontData fontData;
+ Font printerFont;
+ Hashtable resources;
+ int tabLength;
+ GC gc; // printer GC
+ int pageWidth; // width of a printer page in pixels
+ int startPage; // first page to print
+ int endPage; // last page to print
+ int startLine; // first (wrapped) line to print
+ int endLine; // last (wrapped) line to print
+ boolean singleLine; // widget single line mode
+ Point selection = null; // selected text
+ boolean mirrored; // indicates the printing gc should be mirrored
+ int lineSpacing;
+ int printMargin;
+
+ /**
+ * Creates an instance of <code>Printing</code>.
+ * Copies the widget content and rendering data that needs
+ * to be requested from listeners.
+ * </p>
+ * @param parent StyledText widget to print.
+ * @param printer printer device to print on.
+ * @param printOptions print options
+ */
+ Printing(StyledText styledText, Printer printer, StyledTextPrintOptions printOptions) {
+ this.printer = printer;
+ this.printOptions = printOptions;
+ this.mirrored = (styledText.getStyle() & SWT.MIRRORED) != 0;
+ singleLine = styledText.isSingleLine();
+ startPage = 1;
+ endPage = Integer.MAX_VALUE;
+ PrinterData data = printer.getPrinterData();
+ if (data.scope == PrinterData.PAGE_RANGE) {
+ startPage = data.startPage;
+ endPage = data.endPage;
+ if (endPage < startPage) {
+ int temp = endPage;
+ endPage = startPage;
+ startPage = temp;
+ }
+ } else if (data.scope == PrinterData.SELECTION) {
+ selection = styledText.getSelectionRange();
+ }
+ printerRenderer = new StyledTextRenderer(printer, null);
+ printerRenderer.setContent(copyContent(styledText.getContent()));
+ cacheLineData(styledText);
+ }
+ /**
+ * Caches all line data that needs to be requested from a listener.
+ * </p>
+ * @param printerContent <code>StyledTextContent</code> to request
+ * line data for.
+ */
+ void cacheLineData(StyledText styledText) {
+ StyledTextRenderer renderer = styledText.renderer;
+ renderer.copyInto(printerRenderer);
+ fontData = styledText.getFont().getFontData()[0];
+ tabLength = styledText.tabLength;
+ int lineCount = printerRenderer.lineCount;
+ if (styledText.isListening(LineGetBackground) || (styledText.isBidi() && styledText.isListening(LineGetSegments)) || styledText.isListening(LineGetStyle)) {
+ StyledTextContent content = printerRenderer.content;
+ for (int i = 0; i < lineCount; i++) {
+ String line = content.getLine(i);
+ int lineOffset = content.getOffsetAtLine(i);
+ StyledTextEvent event = styledText.getLineBackgroundData(lineOffset, line);
+ if (event != null && event.lineBackground != null) {
+ printerRenderer.setLineBackground(i, 1, event.lineBackground);
+ }
+ if (styledText.isBidi()) {
+ int[] segments = styledText.getBidiSegments(lineOffset, line);
+ printerRenderer.setLineSegments(i, 1, segments);
+ }
+ event = styledText.getLineStyleData(lineOffset, line);
+ if (event != null) {
+ printerRenderer.setLineIndent(i, 1, event.indent);
+ printerRenderer.setLineAlignment(i, 1, event.alignment);
+ printerRenderer.setLineJustify(i, 1, event.justify);
+ printerRenderer.setLineBullet(i, 1, event.bullet);
+ StyleRange[] styles = event.styles;
+ if (styles != null && styles.length > 0) {
+ printerRenderer.setStyleRanges(event.ranges, styles);
+ }
+ }
+ }
+ }
+ Point screenDPI = styledText.getDisplay().getDPI();
+ Point printerDPI = printer.getDPI();
+ resources = new Hashtable ();
+ for (int i = 0; i < lineCount; i++) {
+ Color color = printerRenderer.getLineBackground(i, null);
+ if (color != null) {
+ if (printOptions.printLineBackground) {
+ Color printerColor = (Color)resources.get(color);
+ if (printerColor == null) {
+ printerColor = new Color (printer, color.getRGB());
+ resources.put(color, printerColor);
+ }
+ printerRenderer.setLineBackground(i, 1, printerColor);
+ } else {
+ printerRenderer.setLineBackground(i, 1, null);
+ }
+ }
+ int indent = printerRenderer.getLineIndent(i, 0);
+ if (indent != 0) {
+ printerRenderer.setLineIndent(i, 1, indent * printerDPI.x / screenDPI.x);
+ }
+ }
+ StyleRange[] styles = printerRenderer.styles;
+ for (int i = 0; i < printerRenderer.styleCount; i++) {
+ StyleRange style = styles[i];
+ Font font = style.font;
+ if (style.font != null) {
+ Font printerFont = (Font)resources.get(font);
+ if (printerFont == null) {
+ printerFont = new Font (printer, font.getFontData());
+ resources.put(font, printerFont);
+ }
+ style.font = printerFont;
+ }
+ Color color = style.foreground;
+ if (color != null) {
+ Color printerColor = (Color)resources.get(color);
+ if (printOptions.printTextForeground) {
+ if (printerColor == null) {
+ printerColor = new Color (printer, color.getRGB());
+ resources.put(color, printerColor);
+ }
+ style.foreground = printerColor;
+ } else {
+ style.foreground = null;
+ }
+ }
+ color = style.background;
+ if (color != null) {
+ Color printerColor = (Color)resources.get(color);
+ if (printOptions.printTextBackground) {
+ if (printerColor == null) {
+ printerColor = new Color (printer, color.getRGB());
+ resources.put(color, printerColor);
+ }
+ style.background = printerColor;
+ } else {
+ style.background = null;
+ }
+ }
+ if (!printOptions.printTextFontStyle) {
+ style.fontStyle = SWT.NORMAL;
+ }
+ style.rise = style.rise * printerDPI.y / screenDPI.y;
+ GlyphMetrics metrics = style.metrics;
+ if (metrics != null) {
+ metrics.ascent = metrics.ascent * printerDPI.y / screenDPI.y;
+ metrics.descent = metrics.descent * printerDPI.y / screenDPI.y;
+ metrics.width = metrics.width * printerDPI.x / screenDPI.x;
+ }
+ }
+ lineSpacing = styledText.lineSpacing * printerDPI.y / screenDPI.y;
+ if (printOptions.printLineNumbers) {
+ printMargin = 3 * printerDPI.x / screenDPI.x;
+ }
+ }
+ /**
+ * Copies the text of the specified <code>StyledTextContent</code>.
+ * </p>
+ * @param original the <code>StyledTextContent</code> to copy.
+ */
+ StyledTextContent copyContent(StyledTextContent original) {
+ StyledTextContent printerContent = new DefaultContent();
+ int insertOffset = 0;
+ for (int i = 0; i < original.getLineCount(); i++) {
+ int insertEndOffset;
+ if (i < original.getLineCount() - 1) {
+ insertEndOffset = original.getOffsetAtLine(i + 1);
+ } else {
+ insertEndOffset = original.getCharCount();
+ }
+ printerContent.replaceTextRange(insertOffset, 0, original.getTextRange(insertOffset, insertEndOffset - insertOffset));
+ insertOffset = insertEndOffset;
+ }
+ return printerContent;
+ }
+ /**
+ * Disposes of the resources and the <code>PrintRenderer</code>.
+ */
+ void dispose() {
+ if (gc != null) {
+ gc.dispose();
+ gc = null;
+ }
+ if (resources != null) {
+ Enumeration enumeration = resources.elements();
+ while (enumeration.hasMoreElements()) {
+ Resource resource = (Resource) enumeration.nextElement();
+ resource.dispose();
+ }
+ resources = null;
+ }
+ if (printerFont != null) {
+ printerFont.dispose();
+ printerFont = null;
+ }
+ if (printerRenderer != null) {
+ printerRenderer.dispose();
+ printerRenderer = null;
+ }
+ }
+ void init() {
+ Rectangle trim = printer.computeTrim(0, 0, 0, 0);
+ Point dpi = printer.getDPI();
+
+ printerFont = new Font(printer, fontData.getName(), fontData.getHeight(), SWT.NORMAL);
+ clientArea = printer.getClientArea();
+ pageWidth = clientArea.width;
+ // one inch margin around text
+ clientArea.x = dpi.x + trim.x;
+ clientArea.y = dpi.y + trim.y;
+ clientArea.width -= (clientArea.x + trim.width);
+ clientArea.height -= (clientArea.y + trim.height);
+
+ int style = mirrored ? SWT.RIGHT_TO_LEFT : SWT.LEFT_TO_RIGHT;
+ gc = new GC(printer, style);
+ gc.setFont(printerFont);
+ printerRenderer.setFont(printerFont, tabLength);
+ int lineHeight = printerRenderer.getLineHeight();
+ if (printOptions.header != null) {
+ clientArea.y += lineHeight * 2;
+ clientArea.height -= lineHeight * 2;
+ }
+ if (printOptions.footer != null) {
+ clientArea.height -= lineHeight * 2;
+ }
+
+ // TODO not wrapped
+ StyledTextContent content = printerRenderer.content;
+ startLine = 0;
+ endLine = singleLine ? 0 : content.getLineCount() - 1;
+ PrinterData data = printer.getPrinterData();
+ if (data.scope == PrinterData.PAGE_RANGE) {
+ int pageSize = clientArea.height / lineHeight;//WRONG
+ startLine = (startPage - 1) * pageSize;
+ } else if (data.scope == PrinterData.SELECTION) {
+ startLine = content.getLineAtOffset(selection.x);
+ if (selection.y > 0) {
+ endLine = content.getLineAtOffset(selection.x + selection.y - 1);
+ } else {
+ endLine = startLine - 1;
+ }
+ }
+ }
+ /**
+ * Prints the lines in the specified page range.
+ */
+ void print() {
+ Color background = gc.getBackground();
+ Color foreground = gc.getForeground();
+ int paintY = clientArea.y;
+ int paintX = clientArea.x;
+ int width = clientArea.width;
+ int page = startPage;
+ int pageBottom = clientArea.y + clientArea.height;
+ int orientation = gc.getStyle() & (SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT);
+ TextLayout printLayout = null;
+ if (printOptions.printLineNumbers || printOptions.header != null || printOptions.footer != null) {
+ printLayout = new TextLayout(printer);
+ printLayout.setFont(printerFont);
+ }
+ if (printOptions.printLineNumbers) {
+ int numberingWidth = 0;
+ int count = endLine - startLine + 1;
+ String[] lineLabels = printOptions.lineLabels;
+ if (lineLabels != null) {
+ for (int i = startLine; i < Math.min(count, lineLabels.length); i++) {
+ if (lineLabels[i] != null) {
+ printLayout.setText(lineLabels[i]);
+ int lineWidth = printLayout.getBounds().width;
+ numberingWidth = Math.max(numberingWidth, lineWidth);
+ }
+ }
+ } else {
+ StringBuffer buffer = new StringBuffer("0");
+ while ((count /= 10) > 0) buffer.append("0");
+ printLayout.setText(buffer.toString());
+ numberingWidth = printLayout.getBounds().width;
+ }
+ numberingWidth += printMargin;
+ if (numberingWidth > width) numberingWidth = width;
+ paintX += numberingWidth;
+ width -= numberingWidth;
+ }
+ for (int i = startLine; i <= endLine && page <= endPage; i++) {
+ if (paintY == clientArea.y) {
+ printer.startPage();
+ printDecoration(page, true, printLayout);
+ }
+ TextLayout layout = printerRenderer.getTextLayout(i, orientation, width, lineSpacing);
+ Color lineBackground = printerRenderer.getLineBackground(i, background);
+ int paragraphBottom = paintY + layout.getBounds().height;
+ if (paragraphBottom <= pageBottom) {
+ //normal case, the whole paragraph fits in the current page
+ printLine(paintX, paintY, gc, foreground, lineBackground, layout, printLayout, i);
+ paintY = paragraphBottom;
+ } else {
+ int lineCount = layout.getLineCount();
+ while (paragraphBottom > pageBottom && lineCount > 0) {
+ lineCount--;
+ paragraphBottom -= layout.getLineBounds(lineCount).height + layout.getSpacing();
+ }
+ if (lineCount == 0) {
+ //the whole paragraph goes to the next page
+ printDecoration(page, false, printLayout);
+ printer.endPage();
+ page++;
+ if (page <= endPage) {
+ printer.startPage();
+ printDecoration(page, true, printLayout);
+ paintY = clientArea.y;
+ printLine(paintX, paintY, gc, foreground, lineBackground, layout, printLayout, i);
+ paintY += layout.getBounds().height;
+ }
+ } else {
+ //draw paragraph top in the current page and paragraph bottom in the next
+ int height = paragraphBottom - paintY;
+ gc.setClipping(clientArea.x, paintY, clientArea.width, height);
+ printLine(paintX, paintY, gc, foreground, lineBackground, layout, printLayout, i);
+ gc.setClipping((Rectangle)null);
+ printDecoration(page, false, printLayout);
+ printer.endPage();
+ page++;
+ if (page <= endPage) {
+ printer.startPage();
+ printDecoration(page, true, printLayout);
+ paintY = clientArea.y - height;
+ int layoutHeight = layout.getBounds().height;
+ gc.setClipping(clientArea.x, clientArea.y, clientArea.width, layoutHeight - height);
+ printLine(paintX, paintY, gc, foreground, lineBackground, layout, printLayout, i);
+ gc.setClipping((Rectangle)null);
+ paintY += layoutHeight;
+ }
+ }
+ }
+ printerRenderer.disposeTextLayout(layout);
+ }
+ if (page <= endPage && paintY > clientArea.y) {
+ // close partial page
+ printDecoration(page, false, printLayout);
+ printer.endPage();
+ }
+ if (printLayout != null) printLayout.dispose();
+ }
+ /**
+ * Print header or footer decorations.
+ *
+ * @param page page number to print, if specified in the StyledTextPrintOptions header or footer.
+ * @param header true = print the header, false = print the footer
+ */
+ void printDecoration(int page, boolean header, TextLayout layout) {
+ String text = header ? printOptions.header : printOptions.footer;
+ if (text == null) return;
+ int lastSegmentIndex = 0;
+ for (int i = 0; i < 3; i++) {
+ int segmentIndex = text.indexOf(StyledTextPrintOptions.SEPARATOR, lastSegmentIndex);
+ String segment;
+ if (segmentIndex == -1) {
+ segment = text.substring(lastSegmentIndex);
+ printDecorationSegment(segment, i, page, header, layout);
+ break;
+ } else {
+ segment = text.substring(lastSegmentIndex, segmentIndex);
+ printDecorationSegment(segment, i, page, header, layout);
+ lastSegmentIndex = segmentIndex + StyledTextPrintOptions.SEPARATOR.length();
+ }
+ }
+ }
+ /**
+ * Print one segment of a header or footer decoration.
+ * Headers and footers have three different segments.
+ * One each for left aligned, centered, and right aligned text.
+ *
+ * @param segment decoration segment to print
+ * @param alignment alignment of the segment. 0=left, 1=center, 2=right
+ * @param page page number to print, if specified in the decoration segment.
+ * @param header true = print the header, false = print the footer
+ */
+ void printDecorationSegment(String segment, int alignment, int page, boolean header, TextLayout layout) {
+ int pageIndex = segment.indexOf(StyledTextPrintOptions.PAGE_TAG);
+ if (pageIndex != -1) {
+ int pageTagLength = StyledTextPrintOptions.PAGE_TAG.length();
+ StringBuffer buffer = new StringBuffer(segment.substring (0, pageIndex));
+ buffer.append (page);
+ buffer.append (segment.substring(pageIndex + pageTagLength));
+ segment = buffer.toString();
+ }
+ if (segment.length() > 0) {
+ layout.setText(segment);
+ int segmentWidth = layout.getBounds().width;
+ int segmentHeight = printerRenderer.getLineHeight();
+ int drawX = 0, drawY;
+ if (alignment == LEFT) {
+ drawX = clientArea.x;
+ } else if (alignment == CENTER) {
+ drawX = (pageWidth - segmentWidth) / 2;
+ } else if (alignment == RIGHT) {
+ drawX = clientArea.x + clientArea.width - segmentWidth;
+ }
+ if (header) {
+ drawY = clientArea.y - segmentHeight * 2;
+ } else {
+ drawY = clientArea.y + clientArea.height + segmentHeight;
+ }
+ layout.draw(gc, drawX, drawY);
+ }
+ }
+ void printLine(int x, int y, GC gc, Color foreground, Color background, TextLayout layout, TextLayout printLayout, int index) {
+ if (background != null) {
+ Rectangle rect = layout.getBounds();
+ gc.setBackground(background);
+ gc.fillRectangle(x, y, rect.width, rect.height);
+
+// int lineCount = layout.getLineCount();
+// for (int i = 0; i < lineCount; i++) {
+// Rectangle rect = layout.getLineBounds(i);
+// rect.x += paintX;
+// rect.y += paintY + layout.getSpacing();
+// rect.width = width;//layout bounds
+// gc.fillRectangle(rect);
+// }
+ }
+ if (printOptions.printLineNumbers) {
+ FontMetrics metrics = layout.getLineMetrics(0);
+ printLayout.setAscent(metrics.getAscent() + metrics.getLeading());
+ printLayout.setDescent(metrics.getDescent());
+ String[] lineLabels = printOptions.lineLabels;
+ if (lineLabels != null) {
+ if (0 <= index && index < lineLabels.length && lineLabels[index] != null) {
+ printLayout.setText(lineLabels[index]);
+ } else {
+ printLayout.setText("");
+ }
+ } else {
+ printLayout.setText(String.valueOf(index));
+ }
+ int paintX = x - printMargin - printLayout.getBounds().width;
+ printLayout.draw(gc, paintX, y);
+ printLayout.setAscent(-1);
+ printLayout.setDescent(-1);
+ }
+ gc.setForeground(foreground);
+ layout.draw(gc, x, y);
+ }
+ /**
+ * Starts a print job and prints the pages specified in the constructor.
+ */
+ public void run() {
+ String jobName = printOptions.jobName;
+ if (jobName == null) {
+ jobName = "Printing";
+ }
+ if (printer.startJob(jobName)) {
+ init();
+ print();
+ dispose();
+ printer.endJob();
+ }
+ }
+ }
+ /**
+ * The <code>RTFWriter</code> class is used to write widget content as
+ * rich text. The implementation complies with the RTF specification
+ * version 1.5.
+ * <p>
+ * toString() is guaranteed to return a valid RTF string only after
+ * close() has been called.
+ * </p><p>
+ * Whole and partial lines and line breaks can be written. Lines will be
+ * formatted using the styles queried from the LineStyleListener, if
+ * set, or those set directly in the widget. All styles are applied to
+ * the RTF stream like they are rendered by the widget. In addition, the
+ * widget font name and size is used for the whole text.
+ * </p>
+ */
+ class RTFWriter extends TextWriter {
+ static final int DEFAULT_FOREGROUND = 0;
+ static final int DEFAULT_BACKGROUND = 1;
+ Vector colorTable, fontTable;
+ boolean WriteUnicode;
+
+ /**
+ * Creates a RTF writer that writes content starting at offset "start"
+ * in the document. <code>start</code> and <code>length</code>can be set to specify partial
+ * lines.
+ *
+ * @param start start offset of content to write, 0 based from
+ * beginning of document
+ * @param length length of content to write
+ */
+ public RTFWriter(int start, int length) {
+ super(start, length);
+ colorTable = new Vector();
+ fontTable = new Vector();
+ colorTable.addElement(getForeground());
+ colorTable.addElement(getBackground());
+ fontTable.addElement(getFont());
+ setUnicode();
+ }
+ /**
+ * Closes the RTF writer. Once closed no more content can be written.
+ * <b>NOTE:</b> <code>toString()</code> does not return a valid RTF string until
+ * <code>close()</code> has been called.
+ */
+ public void close() {
+ if (!isClosed()) {
+ writeHeader();
+ write("\n}}\0");
+ super.close();
+ }
+ }
+ /**
+ * Returns the index of the specified color in the RTF color table.
+ *
+ * @param color the color
+ * @param defaultIndex return value if color is null
+ * @return the index of the specified color in the RTF color table
+ * or "defaultIndex" if "color" is null.
+ */
+ int getColorIndex(Color color, int defaultIndex) {
+ if (color == null) return defaultIndex;
+ int index = colorTable.indexOf(color);
+ if (index == -1) {
+ index = colorTable.size();
+ colorTable.addElement(color);
+ }
+ return index;
+ }
+ /**
+ * Returns the index of the specified color in the RTF color table.
+ *
+ * @param color the color
+ * @param defaultIndex return value if color is null
+ * @return the index of the specified color in the RTF color table
+ * or "defaultIndex" if "color" is null.
+ */
+ int getFontIndex(Font font) {
+ int index = fontTable.indexOf(font);
+ if (index == -1) {
+ index = fontTable.size();
+ fontTable.addElement(font);
+ }
+ return index;
+ }
+ /**
+ * Determines if Unicode RTF should be written.
+ * Don't write Unicode RTF on Windows 95/98/ME or NT.
+ */
+ void setUnicode() {
+ final String Win95 = "windows 95";
+ final String Win98 = "windows 98";
+ final String WinME = "windows me";
+ final String WinNT = "windows nt";
+ String osName = System.getProperty("os.name").toLowerCase();
+ String osVersion = System.getProperty("os.version");
+ int majorVersion = 0;
+
+ if (osName.startsWith(WinNT) && osVersion != null) {
+ int majorIndex = osVersion.indexOf('.');
+ if (majorIndex != -1) {
+ osVersion = osVersion.substring(0, majorIndex);
+ try {
+ majorVersion = Integer.parseInt(osVersion);
+ } catch (NumberFormatException exception) {
+ // ignore exception. version number remains unknown.
+ // will write without Unicode
+ }
+ }
+ }
+ WriteUnicode = !osName.startsWith(Win95) &&
+ !osName.startsWith(Win98) &&
+ !osName.startsWith(WinME) &&
+ (!osName.startsWith(WinNT) || majorVersion > 4);
+ }
+ /**
+ * Appends the specified segment of "string" to the RTF data.
+ * Copy from <code>start</code> up to, but excluding, <code>end</code>.
+ *
+ * @param string string to copy a segment from. Must not contain
+ * line breaks. Line breaks should be written using writeLineDelimiter()
+ * @param start start offset of segment. 0 based.
+ * @param end end offset of segment
+ */
+ void write(String string, int start, int end) {
+ for (int index = start; index < end; index++) {
+ char ch = string.charAt(index);
+ if (ch > 0xFF && WriteUnicode) {
+ // write the sub string from the last escaped character
+ // to the current one. Fixes bug 21698.
+ if (index > start) {
+ write(string.substring(start, index));
+ }
+ write("\\u");
+ write(Integer.toString((short) ch));
+ write('?'); // ANSI representation (1 byte long, \\uc1)
+ start = index + 1;
+ } else if (ch == '}' || ch == '{' || ch == '\\') {
+ // write the sub string from the last escaped character
+ // to the current one. Fixes bug 21698.
+ if (index > start) {
+ write(string.substring(start, index));
+ }
+ write('\\');
+ write(ch);
+ start = index + 1;
+ }
+ }
+ // write from the last escaped character to the end.
+ // Fixes bug 21698.
+ if (start < end) {
+ write(string.substring(start, end));
+ }
+ }
+ /**
+ * Writes the RTF header including font table and color table.
+ */
+ void writeHeader() {
+ StringBuffer header = new StringBuffer();
+ FontData fontData = getFont().getFontData()[0];
+ header.append("{\\rtf1\\ansi");
+ // specify code page, necessary for copy to work in bidi
+ // systems that don't support Unicode RTF.
+ String cpg = System.getProperty("file.encoding").toLowerCase();
+ if (cpg.startsWith("cp") || cpg.startsWith("ms")) {
+ cpg = cpg.substring(2, cpg.length());
+ header.append("\\ansicpg");
+ header.append(cpg);
+ }
+ header.append("\\uc1\\deff0{\\fonttbl{\\f0\\fnil ");
+ header.append(fontData.getName());
+ header.append(";");
+ for (int i = 1; i < fontTable.size(); i++) {
+ header.append("\\f");
+ header.append(i);
+ header.append(" ");
+ FontData fd = ((Font)fontTable.elementAt(i)).getFontData()[0];
+ header.append(fd.getName());
+ header.append(";");
+ }
+ header.append("}}\n{\\colortbl");
+ for (int i = 0; i < colorTable.size(); i++) {
+ Color color = (Color) colorTable.elementAt(i);
+ header.append("\\red");
+ header.append(color.getRed());
+ header.append("\\green");
+ header.append(color.getGreen());
+ header.append("\\blue");
+ header.append(color.getBlue());
+ header.append(";");
+ }
+ // some RTF readers ignore the deff0 font tag. Explicitly
+ // set the font for the whole document to work around this.
+ header.append("}\n{\\f0\\fs");
+ // font size is specified in half points
+ header.append(fontData.getHeight() * 2);
+ header.append(" ");
+ write(header.toString(), 0);
+ }
+ /**
+ * Appends the specified line text to the RTF data. Lines will be formatted
+ * using the styles queried from the LineStyleListener, if set, or those set
+ * directly in the widget.
+ *
+ * @param line line text to write as RTF. Must not contain line breaks
+ * Line breaks should be written using writeLineDelimiter()
+ * @param lineOffset offset of the line. 0 based from the start of the
+ * widget document. Any text occurring before the start offset or after the
+ * end offset specified during object creation is ignored.
+ * @exception SWTException <ul>
+ * <li>ERROR_IO when the writer is closed.</li>
+ * </ul>
+ */
+ public void writeLine(String line, int lineOffset) {
+ if (isClosed()) {
+ SWT.error(SWT.ERROR_IO);
+ }
+ int lineIndex = content.getLineAtOffset(lineOffset);
+ int lineAlignment, lineIndent;
+ boolean lineJustify;
+ int[] ranges;
+ StyleRange[] styles;
+ StyledTextEvent event = getLineStyleData(lineOffset, line);
+ if (event != null) {
+ lineAlignment = event.alignment;
+ lineIndent = event.indent;
+ lineJustify = event.justify;
+ ranges = event.ranges;
+ styles = event.styles;
+ } else {
+ lineAlignment = renderer.getLineAlignment(lineIndex, alignment);
+ lineIndent = renderer.getLineIndent(lineIndex, indent);
+ lineJustify = renderer.getLineJustify(lineIndex, justify);
+ ranges = renderer.getRanges(lineOffset, line.length());
+ styles = renderer.getStyleRanges(lineOffset, line.length(), false);
+ }
+ if (styles == null) styles = new StyleRange[0];
+ Color lineBackground = renderer.getLineBackground(lineIndex, null);
+ event = getLineBackgroundData(lineOffset, line);
+ if (event != null && event.lineBackground != null) lineBackground = event.lineBackground;
+ writeStyledLine(line, lineOffset, ranges, styles, lineBackground, lineIndent, lineAlignment, lineJustify);
+ }
+ /**
+ * Appends the specified line delimiter to the RTF data.
+ *
+ * @param lineDelimiter line delimiter to write as RTF.
+ * @exception SWTException <ul>
+ * <li>ERROR_IO when the writer is closed.</li>
+ * </ul>
+ */
+ public void writeLineDelimiter(String lineDelimiter) {
+ if (isClosed()) {
+ SWT.error(SWT.ERROR_IO);
+ }
+ write(lineDelimiter, 0, lineDelimiter.length());
+ write("\\par ");
+ }
+ /**
+ * Appends the specified line text to the RTF data.
+ * <p>
+ * Use the colors and font styles specified in "styles" and "lineBackground".
+ * Formatting is written to reflect the text rendering by the text widget.
+ * Style background colors take precedence over the line background color.
+ * Background colors are written using the \highlight tag (vs. the \cb tag).
+ * </p>
+ *
+ * @param line line text to write as RTF. Must not contain line breaks
+ * Line breaks should be written using writeLineDelimiter()
+ * @param lineOffset offset of the line. 0 based from the start of the
+ * widget document. Any text occurring before the start offset or after the
+ * end offset specified during object creation is ignored.
+ * @param styles styles to use for formatting. Must not be null.
+ * @param lineBackground line background color to use for formatting.
+ * May be null.
+ */
+ void writeStyledLine(String line, int lineOffset, int ranges[], StyleRange[] styles, Color lineBackground, int indent, int alignment, boolean justify) {
+ int lineLength = line.length();
+ int startOffset = getStart();
+ int writeOffset = startOffset - lineOffset;
+ if (writeOffset >= lineLength) return;
+ int lineIndex = Math.max(0, writeOffset);
+
+ write("\\fi");
+ write(indent);
+ switch (alignment) {
+ case SWT.LEFT: write("\\ql"); break;
+ case SWT.CENTER: write("\\qc"); break;
+ case SWT.RIGHT: write("\\qr"); break;
+ }
+ if (justify) write("\\qj");
+ write(" ");
+
+ if (lineBackground != null) {
+ write("{\\highlight");
+ write(getColorIndex(lineBackground, DEFAULT_BACKGROUND));
+ write(" ");
+ }
+ int endOffset = startOffset + super.getCharCount();
+ int lineEndOffset = Math.min(lineLength, endOffset - lineOffset);
+ for (int i = 0; i < styles.length; i++) {
+ StyleRange style = styles[i];
+ int start, end;
+ if (ranges != null) {
+ start = ranges[i << 1] - lineOffset;
+ end = start + ranges[(i << 1) + 1];
+ } else {
+ start = style.start - lineOffset;
+ end = start + style.length;
+ }
+ // skip over partial first line
+ if (end < writeOffset) {
+ continue;
+ }
+ // style starts beyond line end or RTF write end
+ if (start >= lineEndOffset) {
+ break;
+ }
+ // write any unstyled text
+ if (lineIndex < start) {
+ // copy to start of style
+ // style starting beyond end of write range or end of line
+ // is guarded against above.
+ write(line, lineIndex, start);
+ lineIndex = start;
+ }
+ // write styled text
+ write("{\\cf");
+ write(getColorIndex(style.foreground, DEFAULT_FOREGROUND));
+ int colorIndex = getColorIndex(style.background, DEFAULT_BACKGROUND);
+ if (colorIndex != DEFAULT_BACKGROUND) {
+ write("\\highlight");
+ write(colorIndex);
+ }
+ Font font = style.font;
+ if (font != null) {
+ int fontIndex = getFontIndex(font);
+ write("\\f");
+ write(fontIndex);
+ FontData fontData = font.getFontData()[0];
+ write("\\fs");
+ write(fontData.getHeight() * 2);
+ } else {
+ if ((style.fontStyle & SWT.BOLD) != 0) {
+ write("\\b");
+ }
+ if ((style.fontStyle & SWT.ITALIC) != 0) {
+ write("\\i");
+ }
+ }
+ if (style.underline) {
+ write("\\ul");
+ }
+ if (style.strikeout) {
+ write("\\strike");
+ }
+ write(" ");
+ // copy to end of style or end of write range or end of line
+ int copyEnd = Math.min(end, lineEndOffset);
+ // guard against invalid styles and let style processing continue
+ copyEnd = Math.max(copyEnd, lineIndex);
+ write(line, lineIndex, copyEnd);
+ if (font == null) {
+ if ((style.fontStyle & SWT.BOLD) != 0) {
+ write("\\b0");
+ }
+ if ((style.fontStyle & SWT.ITALIC) != 0) {
+ write("\\i0");
+ }
+ }
+ if (style.underline) {
+ write("\\ul0");
+ }
+ if (style.strikeout) {
+ write("\\strike0");
+ }
+ write("}");
+ lineIndex = copyEnd;
+ }
+ // write unstyled text at the end of the line
+ if (lineIndex < lineEndOffset) {
+ write(line, lineIndex, lineEndOffset);
+ }
+ if (lineBackground != null) write("}");
+ }
+ }
+ /**
+ * The <code>TextWriter</code> class is used to write widget content to
+ * a string. Whole and partial lines and line breaks can be written. To write
+ * partial lines, specify the start and length of the desired segment
+ * during object creation.
+ * <p>
+ * </b>NOTE:</b> <code>toString()</code> is guaranteed to return a valid string only after close()
+ * has been called.
+ * </p>
+ */
+ class TextWriter {
+ private StringBuffer buffer;
+ private int startOffset; // offset of first character that will be written
+ private int endOffset; // offset of last character that will be written.
+ // 0 based from the beginning of the widget text.
+ private boolean isClosed = false;
+
+ /**
+ * Creates a writer that writes content starting at offset "start"
+ * in the document. <code>start</code> and <code>length</code> can be set to specify partial lines.
+ *
+ * @param start start offset of content to write, 0 based from beginning of document
+ * @param length length of content to write
+ */
+ public TextWriter(int start, int length) {
+ buffer = new StringBuffer(length);
+ startOffset = start;
+ endOffset = start + length;
+ }
+ /**
+ * Closes the writer. Once closed no more content can be written.
+ * <b>NOTE:</b> <code>toString()</code> is not guaranteed to return a valid string unless
+ * the writer is closed.
+ */
+ public void close() {
+ if (!isClosed) {
+ isClosed = true;
+ }
+ }
+ /**
+ * Returns the number of characters to write.
+ * @return the integer number of characters to write
+ */
+ public int getCharCount() {
+ return endOffset - startOffset;
+ }
+ /**
+ * Returns the offset where writing starts. 0 based from the start of
+ * the widget text. Used to write partial lines.
+ * @return the integer offset where writing starts
+ */
+ public int getStart() {
+ return startOffset;
+ }
+ /**
+ * Returns whether the writer is closed.
+ * @return a boolean specifying whether or not the writer is closed
+ */
+ public boolean isClosed() {
+ return isClosed;
+ }
+ /**
+ * Returns the string. <code>close()</code> must be called before <code>toString()</code>
+ * is guaranteed to return a valid string.
+ *
+ * @return the string
+ */
+ public String toString() {
+ return buffer.toString();
+ }
+ /**
+ * Appends the given string to the data.
+ */
+ void write(String string) {
+ buffer.append(string);
+ }
+ /**
+ * Inserts the given string to the data at the specified offset.
+ * <p>
+ * Do nothing if "offset" is < 0 or > getCharCount()
+ * </p>
+ *
+ * @param string text to insert
+ * @param offset offset in the existing data to insert "string" at.
+ */
+ void write(String string, int offset) {
+ if (offset < 0 || offset > buffer.length()) {
+ return;
+ }
+ buffer.insert(offset, string);
+ }
+ /**
+ * Appends the given int to the data.
+ */
+ void write(int i) {
+ buffer.append(i);
+ }
+ /**
+ * Appends the given character to the data.
+ */
+ void write(char i) {
+ buffer.append(i);
+ }
+ /**
+ * Appends the specified line text to the data.
+ *
+ * @param line line text to write. Must not contain line breaks
+ * Line breaks should be written using writeLineDelimiter()
+ * @param lineOffset offset of the line. 0 based from the start of the
+ * widget document. Any text occurring before the start offset or after the
+ * end offset specified during object creation is ignored.
+ * @exception SWTException <ul>
+ * <li>ERROR_IO when the writer is closed.</li>
+ * </ul>
+ */
+ public void writeLine(String line, int lineOffset) {
+ if (isClosed) {
+ SWT.error(SWT.ERROR_IO);
+ }
+ int writeOffset = startOffset - lineOffset;
+ int lineLength = line.length();
+ int lineIndex;
+ if (writeOffset >= lineLength) {
+ return; // whole line is outside write range
+ } else if (writeOffset > 0) {
+ lineIndex = writeOffset; // line starts before write start
+ } else {
+ lineIndex = 0;
+ }
+ int copyEnd = Math.min(lineLength, endOffset - lineOffset);
+ if (lineIndex < copyEnd) {
+ write(line.substring(lineIndex, copyEnd));
+ }
+ }
+ /**
+ * Appends the specified line delimiter to the data.
+ *
+ * @param lineDelimiter line delimiter to write
+ * @exception SWTException <ul>
+ * <li>ERROR_IO when the writer is closed.</li>
+ * </ul>
+ */
+ public void writeLineDelimiter(String lineDelimiter) {
+ if (isClosed) {
+ SWT.error(SWT.ERROR_IO);
+ }
+ write(lineDelimiter);
+ }
+ }
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#FULL_SELECTION
+ * @see SWT#MULTI
+ * @see SWT#READ_ONLY
+ * @see SWT#SINGLE
+ * @see SWT#WRAP
+ * @see #getStyle
+ */
+public StyledText(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ // set the fg in the OS to ensure that these are the same as StyledText, necessary
+ // for ensuring that the bg/fg the IME box uses is the same as what StyledText uses
+ super.setForeground(getForeground());
+ super.setDragDetect(false);
+ Display display = getDisplay();
+ isMirrored = (super.getStyle() & SWT.MIRRORED) != 0;
+ fixedLineHeight = true;
+ if ((style & SWT.READ_ONLY) != 0) {
+ setEditable(false);
+ }
+ leftMargin = rightMargin = isBidiCaret() ? BIDI_CARET_WIDTH - 1: 0;
+ if ((style & SWT.SINGLE) != 0 && (style & SWT.BORDER) != 0) {
+ leftMargin = topMargin = rightMargin = bottomMargin = 2;
+ }
+ alignment = style & (SWT.LEFT | SWT.RIGHT | SWT.CENTER);
+ if (alignment == 0) alignment = SWT.LEFT;
+ clipboard = new Clipboard(display);
+ installDefaultContent();
+ renderer = new StyledTextRenderer(getDisplay(), this);
+ renderer.setContent(content);
+ renderer.setFont(getFont(), tabLength);
+ ime = new IME(this, SWT.NONE);
+ defaultCaret = new Caret(this, SWT.NONE);
+ if ((style & SWT.WRAP) != 0) {
+ setWordWrap(true);
+ }
+ if (isBidiCaret()) {
+ createCaretBitmaps();
+ Runnable runnable = new Runnable() {
+ public void run() {
+ int direction = BidiUtil.getKeyboardLanguage() == BidiUtil.KEYBOARD_BIDI ? SWT.RIGHT : SWT.LEFT;
+ if (direction == caretDirection) return;
+ if (getCaret() != defaultCaret) return;
+ Point newCaretPos = getPointAtOffset(caretOffset);
+ setCaretLocation(newCaretPos, direction);
+ }
+ };
+ BidiUtil.addLanguageListener(this, runnable);
+ }
+ setCaret(defaultCaret);
+ calculateScrollBars();
+ createKeyBindings();
+ super.setCursor(display.getSystemCursor(SWT.CURSOR_IBEAM));
+ installListeners();
+ initializeAccessible();
+ setData("DEFAULT_DROP_TARGET_EFFECT", new StyledTextDropTargetEffect(this));
+}
+/**
+ * Adds an extended modify listener. An ExtendedModify event is sent by the
+ * widget when the widget text has changed.
+ *
+ * @param extendedModifyListener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addExtendedModifyListener(ExtendedModifyListener extendedModifyListener) {
+ checkWidget();
+ if (extendedModifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ StyledTextListener typedListener = new StyledTextListener(extendedModifyListener);
+ addListener(ExtendedModify, typedListener);
+}
+/**
+ * Adds a bidirectional segment listener.
+ * <p>
+ * A BidiSegmentEvent is sent
+ * whenever a line of text is measured or rendered. The user can
+ * specify text ranges in the line that should be treated as if they
+ * had a different direction than the surrounding text.
+ * This may be used when adjacent segments of right-to-left text should
+ * not be reordered relative to each other.
+ * E.g., Multiple Java string literals in a right-to-left language
+ * should generally remain in logical order to each other, that is, the
+ * way they are stored.
+ * </p>
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ * @see BidiSegmentEvent
+ * @since 2.0
+ */
+public void addBidiSegmentListener(BidiSegmentListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(LineGetSegments, new StyledTextListener(listener));
+}
+/**
+ * Adds a caret listener. CaretEvent is sent when the caret offset changes.
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void addCaretListener(CaretListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(CaretMoved, new StyledTextListener(listener));
+}
+/**
+ * Adds a line background listener. A LineGetBackground event is sent by the
+ * widget to determine the background color for a line.
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addLineBackgroundListener(LineBackgroundListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (!isListening(LineGetBackground)) {
+ renderer.clearLineBackground(0, content.getLineCount());
+ }
+ addListener(LineGetBackground, new StyledTextListener(listener));
+}
+/**
+ * Adds a line style listener. A LineGetStyle event is sent by the widget to
+ * determine the styles for a line.
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addLineStyleListener(LineStyleListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (!isListening(LineGetStyle)) {
+ setStyleRanges(0, 0, null, null, true);
+ renderer.clearLineStyle(0, content.getLineCount());
+ }
+ addListener(LineGetStyle, new StyledTextListener(listener));
+ setCaretLocation();
+}
+/**
+ * Adds a modify listener. A Modify event is sent by the widget when the widget text
+ * has changed.
+ *
+ * @param modifyListener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addModifyListener(ModifyListener modifyListener) {
+ checkWidget();
+ if (modifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(SWT.Modify, new TypedListener(modifyListener));
+}
+/**
+ * Adds a paint object listener. A paint object event is sent by the widget when an object
+ * needs to be drawn.
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @since 3.2
+ *
+ * @see PaintObjectListener
+ * @see PaintObjectEvent
+ */
+public void addPaintObjectListener(PaintObjectListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(PaintObject, new StyledTextListener(listener));
+}
+/**
+ * Adds a selection listener. A Selection event is sent by the widget when the
+ * user changes the selection.
+ * <p>
+ * When <code>widgetSelected</code> is called, the event x and y fields contain
+ * the start and end caret indices of the selection.
+ * <code>widgetDefaultSelected</code> is not called for StyledTexts.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's selection
+
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #removeSelectionListener
+ * @see SelectionEvent
+ */
+public void addSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(SWT.Selection, new TypedListener(listener));
+}
+/**
+ * Adds a verify key listener. A VerifyKey event is sent by the widget when a key
+ * is pressed. The widget ignores the key press if the listener sets the doit field
+ * of the event to false.
+ *
+ * @param listener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addVerifyKeyListener(VerifyKeyListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(VerifyKey, new StyledTextListener(listener));
+}
+/**
+ * Adds a verify listener. A Verify event is sent by the widget when the widget text
+ * is about to change. The listener can set the event text and the doit field to
+ * change the text that is set in the widget or to force the widget to ignore the
+ * text change.
+ *
+ * @param verifyListener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addVerifyListener(VerifyListener verifyListener) {
+ checkWidget();
+ if (verifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(SWT.Verify, new TypedListener(verifyListener));
+}
+/**
+ * Adds a word movement listener. A movement event is sent when the boundary
+ * of a word is needed. For example, this occurs during word next and word
+ * previous actions.
+ *
+ * @param movementListener the listener
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @see MovementEvent
+ * @see MovementListener
+ * @see #removeWordMovementListener
+ *
+ * @since 3.3
+ */
+public void addWordMovementListener(MovementListener movementListener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ addListener(WordNext, new StyledTextListener(movementListener));
+ addListener(WordPrevious, new StyledTextListener(movementListener));
+}
+/**
+ * Appends a string to the text at the end of the widget.
+ *
+ * @param string the string to be appended
+ * @see #replaceTextRange(int,int,String)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void append(String string) {
+ checkWidget();
+ if (string == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ int lastChar = Math.max(getCharCount(), 0);
+ replaceTextRange(lastChar, 0, string);
+}
+/**
+ * Calculates the scroll bars
+ */
+void calculateScrollBars() {
+ ScrollBar horizontalBar = getHorizontalBar();
+ ScrollBar verticalBar = getVerticalBar();
+ setScrollBars(true);
+ if (verticalBar != null) {
+ verticalBar.setIncrement(getVerticalIncrement());
+ }
+ if (horizontalBar != null) {
+ horizontalBar.setIncrement(getHorizontalIncrement());
+ }
+}
+/**
+ * Calculates the top index based on the current vertical scroll offset.
+ * The top index is the index of the topmost fully visible line or the
+ * topmost partially visible line if no line is fully visible.
+ * The top index starts at 0.
+ */
+void calculateTopIndex(int delta) {
+ int oldTopIndex = topIndex;
+ int oldTopIndexY = topIndexY;
+ if (isFixedLineHeight()) {
+ int verticalIncrement = getVerticalIncrement();
+ if (verticalIncrement == 0) {
+ return;
+ }
+ topIndex = Compatibility.ceil(getVerticalScrollOffset(), verticalIncrement);
+ // Set top index to partially visible top line if no line is fully
+ // visible but at least some of the widget client area is visible.
+ // Fixes bug 15088.
+ if (topIndex > 0) {
+ if (clientAreaHeight > 0) {
+ int bottomPixel = getVerticalScrollOffset() + clientAreaHeight;
+ int fullLineTopPixel = topIndex * verticalIncrement;
+ int fullLineVisibleHeight = bottomPixel - fullLineTopPixel;
+ // set top index to partially visible line if no line fully fits in
+ // client area or if space is available but not used (the latter should
+ // never happen because we use claimBottomFreeSpace)
+ if (fullLineVisibleHeight < verticalIncrement) {
+ topIndex--;
+ }
+ } else if (topIndex >= content.getLineCount()) {
+ topIndex = content.getLineCount() - 1;
+ }
+ }
+ } else {
+ if (delta >= 0) {
+ delta -= topIndexY;
+ int lineIndex = topIndex;
+ int lineCount = content.getLineCount();
+ while (lineIndex < lineCount) {
+ if (delta <= 0) break;
+ delta -= renderer.getLineHeight(lineIndex++);
+ }
+ if (lineIndex < lineCount && -delta + renderer.getLineHeight(lineIndex) <= clientAreaHeight - topMargin - bottomMargin) {
+ topIndex = lineIndex;
+ topIndexY = -delta;
+ } else {
+ topIndex = lineIndex - 1;
+ topIndexY = -renderer.getLineHeight(topIndex) - delta;
+ }
+ } else {
+ delta -= topIndexY;
+ int lineIndex = topIndex;
+ while (lineIndex > 0) {
+ int lineHeight = renderer.getLineHeight(lineIndex - 1);
+ if (delta + lineHeight > 0) break;
+ delta += lineHeight;
+ lineIndex--;
+ }
+ if (lineIndex == 0 || -delta + renderer.getLineHeight(lineIndex) <= clientAreaHeight - topMargin - bottomMargin) {
+ topIndex = lineIndex;
+ topIndexY = - delta;
+ } else {
+ topIndex = lineIndex - 1;
+ topIndexY = - renderer.getLineHeight(topIndex) - delta;
+ }
+ }
+ }
+ if (topIndex != oldTopIndex || oldTopIndexY != topIndexY) {
+ renderer.calculateClientArea();
+ setScrollBars(false);
+ }
+}
+/**
+ * Hides the scroll bars if widget is created in single line mode.
+ */
+static int checkStyle(int style) {
+ if ((style & SWT.SINGLE) != 0) {
+ style &= ~(SWT.H_SCROLL | SWT.V_SCROLL | SWT.WRAP | SWT.MULTI);
+ } else {
+ style |= SWT.MULTI;
+ if ((style & SWT.WRAP) != 0) {
+ style &= ~SWT.H_SCROLL;
+ }
+ }
+ style |= SWT.NO_REDRAW_RESIZE | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND;
+ /* Clear SWT.CENTER to avoid the conflict with SWT.EMBEDDED */
+ return style & ~SWT.CENTER;
+}
+/**
+ * Scrolls down the text to use new space made available by a resize or by
+ * deleted lines.
+ */
+void claimBottomFreeSpace() {
+ if (isFixedLineHeight()) {
+ int newVerticalOffset = Math.max(0, renderer.getHeight() - clientAreaHeight);
+ if (newVerticalOffset < getVerticalScrollOffset()) {
+ scrollVertical(newVerticalOffset - getVerticalScrollOffset(), true);
+ }
+ } else {
+ int bottomIndex = getPartialBottomIndex();
+ int height = getLinePixel(bottomIndex + 1);
+ if (clientAreaHeight > height) {
+ scrollVertical(-getAvailableHeightAbove(clientAreaHeight - height), true);
+ }
+ }
+}
+/**
+ * Scrolls text to the right to use new space made available by a resize.
+ */
+void claimRightFreeSpace() {
+ int newHorizontalOffset = Math.max(0, renderer.getWidth() - clientAreaWidth);
+ if (newHorizontalOffset < horizontalScrollOffset) {
+ // item is no longer drawn past the right border of the client area
+ // align the right end of the item with the right border of the
+ // client area (window is scrolled right).
+ scrollHorizontal(newHorizontalOffset - horizontalScrollOffset, true);
+ }
+}
+void clearBlockSelection(boolean reset, boolean sendEvent) {
+ if (reset) resetSelection();
+ blockXAnchor = blockYAnchor = -1;
+ blockXLocation = blockYLocation = -1;
+ caretDirection = SWT.NULL;
+ updateCaretVisibility();
+ super.redraw();
+ if (sendEvent) sendSelectionEvent();
+}
+/**
+ * Removes the widget selection.
+ *
+ * @param sendEvent a Selection event is sent when set to true and when the selection is actually reset.
+ */
+void clearSelection(boolean sendEvent) {
+ int selectionStart = selection.x;
+ int selectionEnd = selection.y;
+ resetSelection();
+ // redraw old selection, if any
+ if (selectionEnd - selectionStart > 0) {
+ int length = content.getCharCount();
+ // called internally to remove selection after text is removed
+ // therefore make sure redraw range is valid.
+ int redrawStart = Math.min(selectionStart, length);
+ int redrawEnd = Math.min(selectionEnd, length);
+ if (redrawEnd - redrawStart > 0) {
+ internalRedrawRange(redrawStart, redrawEnd - redrawStart);
+ }
+ if (sendEvent) {
+ sendSelectionEvent();
+ }
+ }
+}
+public Point computeSize (int wHint, int hHint, boolean changed) {
+ checkWidget();
+ int lineCount = (getStyle() & SWT.SINGLE) != 0 ? 1 : content.getLineCount();
+ int width = 0;
+ int height = 0;
+ if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) {
+ Display display = getDisplay();
+ int maxHeight = display.getClientArea().height;
+ for (int lineIndex = 0; lineIndex < lineCount; lineIndex++) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int wrapWidth = layout.getWidth();
+ if (wordWrap) layout.setWidth(wHint == 0 ? 1 : wHint);
+ Rectangle rect = layout.getBounds();
+ height += rect.height;
+ width = Math.max(width, rect.width);
+ layout.setWidth(wrapWidth);
+ renderer.disposeTextLayout(layout);
+ if (isFixedLineHeight() && height > maxHeight) break;
+ }
+ if (isFixedLineHeight()) {
+ height = lineCount * renderer.getLineHeight();
+ }
+ }
+ // Use default values if no text is defined.
+ if (width == 0) width = DEFAULT_WIDTH;
+ if (height == 0) height = DEFAULT_HEIGHT;
+ if (wHint != SWT.DEFAULT) width = wHint;
+ if (hHint != SWT.DEFAULT) height = hHint;
+ int wTrim = leftMargin + rightMargin + getCaretWidth();
+ int hTrim = topMargin + bottomMargin;
+ Rectangle rect = computeTrim(0, 0, width + wTrim, height + hTrim);
+ return new Point (rect.width, rect.height);
+}
+/**
+ * Copies the selected text to the <code>DND.CLIPBOARD</code> clipboard.
+ * <p>
+ * The text will be put on the clipboard in plain text format and RTF format.
+ * The <code>DND.CLIPBOARD</code> clipboard is used for data that is
+ * transferred by keyboard accelerator (such as Ctrl+C/Ctrl+V) or
+ * by menu action.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void copy() {
+ checkWidget();
+ copySelection(DND.CLIPBOARD);
+}
+/**
+ * Copies the selected text to the specified clipboard. The text will be put in the
+ * clipboard in plain text format and RTF format.
+ * <p>
+ * The clipboardType is one of the clipboard constants defined in class
+ * <code>DND</code>. The <code>DND.CLIPBOARD</code> clipboard is
+ * used for data that is transferred by keyboard accelerator (such as Ctrl+C/Ctrl+V)
+ * or by menu action. The <code>DND.SELECTION_CLIPBOARD</code>
+ * clipboard is used for data that is transferred by selecting text and pasting
+ * with the middle mouse button.
+ * </p>
+ *
+ * @param clipboardType indicates the type of clipboard
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public void copy(int clipboardType) {
+ checkWidget();
+ copySelection(clipboardType);
+}
+boolean copySelection(int type) {
+ if (type != DND.CLIPBOARD && type != DND.SELECTION_CLIPBOARD) return false;
+ try {
+ if (blockSelection && blockXLocation != -1) {
+ String text = getBlockSelectionText(PlatformLineDelimiter);
+ if (text.length() > 0) {
+ //TODO RTF support
+ TextTransfer plainTextTransfer = TextTransfer.getInstance();
+ Object[] data = new Object[]{text};
+ Transfer[] types = new Transfer[]{plainTextTransfer};
+ clipboard.setContents(data, types, type);
+ return true;
+ }
+ } else {
+ int length = selection.y - selection.x;
+ if (length > 0) {
+ setClipboardContent(selection.x, length, type);
+ return true;
+ }
+ }
+ } catch (SWTError error) {
+ // Copy to clipboard failed. This happens when another application
+ // is accessing the clipboard while we copy. Ignore the error.
+ // Rethrow all other errors. Fixes bug 17578.
+ if (error.code != DND.ERROR_CANNOT_SET_CLIPBOARD) {
+ throw error;
+ }
+ }
+ return false;
+}
+/**
+ * Returns the alignment of the widget.
+ *
+ * @return the alignment
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getLineAlignment(int)
+ *
+ * @since 3.2
+ */
+public int getAlignment() {
+ checkWidget();
+ return alignment;
+}
+int getAvailableHeightAbove(int height) {
+ int maxHeight = verticalScrollOffset;
+ if (maxHeight == -1) {
+ int lineIndex = topIndex - 1;
+ maxHeight = -topIndexY;
+ if (topIndexY > 0) {
+ maxHeight += renderer.getLineHeight(lineIndex--);
+ }
+ while (height > maxHeight && lineIndex >= 0) {
+ maxHeight += renderer.getLineHeight(lineIndex--);
+ }
+ }
+ return Math.min(height, maxHeight);
+}
+int getAvailableHeightBellow(int height) {
+ int partialBottomIndex = getPartialBottomIndex();
+ int topY = getLinePixel(partialBottomIndex);
+ int lineHeight = renderer.getLineHeight(partialBottomIndex);
+ int availableHeight = 0;
+ int clientAreaHeight = this.clientAreaHeight - topMargin - bottomMargin;
+ if (topY + lineHeight > clientAreaHeight) {
+ availableHeight = lineHeight - (clientAreaHeight - topY);
+ }
+ int lineIndex = partialBottomIndex + 1;
+ int lineCount = content.getLineCount();
+ while (height > availableHeight && lineIndex < lineCount) {
+ availableHeight += renderer.getLineHeight(lineIndex++);
+ }
+ return Math.min(height, availableHeight);
+}
+/**
+ * Returns the color of the margins.
+ *
+ * @return the color of the margins.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public Color getMarginColor() {
+ checkWidget();
+ return marginColor != null ? marginColor : getBackground();
+}
+/**
+ * Returns a string that uses only the line delimiter specified by the
+ * StyledTextContent implementation.
+ * <p>
+ * Returns only the first line if the widget has the SWT.SINGLE style.
+ * </p>
+ *
+ * @param text the text that may have line delimiters that don't
+ * match the model line delimiter. Possible line delimiters
+ * are CR ('\r'), LF ('\n'), CR/LF ("\r\n")
+ * @return the converted text that only uses the line delimiter
+ * specified by the model. Returns only the first line if the widget
+ * has the SWT.SINGLE style.
+ */
+String getModelDelimitedText(String text) {
+ int length = text.length();
+ if (length == 0) {
+ return text;
+ }
+ int crIndex = 0;
+ int lfIndex = 0;
+ int i = 0;
+ StringBuffer convertedText = new StringBuffer(length);
+ String delimiter = getLineDelimiter();
+ while (i < length) {
+ if (crIndex != -1) {
+ crIndex = text.indexOf(SWT.CR, i);
+ }
+ if (lfIndex != -1) {
+ lfIndex = text.indexOf(SWT.LF, i);
+ }
+ if (lfIndex == -1 && crIndex == -1) { // no more line breaks?
+ break;
+ } else if ((crIndex < lfIndex && crIndex != -1) || lfIndex == -1) {
+ convertedText.append(text.substring(i, crIndex));
+ if (lfIndex == crIndex + 1) { // CR/LF combination?
+ i = lfIndex + 1;
+ } else {
+ i = crIndex + 1;
+ }
+ } else { // LF occurs before CR!
+ convertedText.append(text.substring(i, lfIndex));
+ i = lfIndex + 1;
+ }
+ if (isSingleLine()) {
+ break;
+ }
+ convertedText.append(delimiter);
+ }
+ // copy remaining text if any and if not in single line mode or no
+ // text copied thus far (because there only is one line)
+ if (i < length && (!isSingleLine() || convertedText.length() == 0)) {
+ convertedText.append(text.substring(i));
+ }
+ return convertedText.toString();
+}
+boolean checkDragDetect(Event event) {
+ if (!isListening(SWT.DragDetect)) return false;
+ if (IS_MOTIF) {
+ if (event.button != 2) return false;
+ } else {
+ if (event.button != 1) return false;
+ }
+ if (blockSelection && blockXLocation != -1) {
+ Rectangle rect = getBlockSelectionRectangle();
+ if (rect.contains(event.x, event.y)) {
+ return dragDetect(event);
+ }
+ } else {
+ if (selection.x == selection.y) return false;
+ int offset = getOffsetAtPoint(event.x, event.y, null, true);
+ if (selection.x <= offset && offset < selection.y) {
+ return dragDetect(event);
+ }
+ }
+ return false;
+}
+/**
+ * Creates default key bindings.
+ */
+void createKeyBindings() {
+ int nextKey = isMirrored() ? SWT.ARROW_LEFT : SWT.ARROW_RIGHT;
+ int previousKey = isMirrored() ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT;
+
+ // Navigation
+ setKeyBinding(SWT.ARROW_UP, ST.LINE_UP);
+ setKeyBinding(SWT.ARROW_DOWN, ST.LINE_DOWN);
+ if (IS_MAC) {
+ setKeyBinding(previousKey | SWT.MOD1, ST.LINE_START);
+ setKeyBinding(nextKey | SWT.MOD1, ST.LINE_END);
+ setKeyBinding(SWT.HOME, ST.TEXT_START);
+ setKeyBinding(SWT.END, ST.TEXT_END);
+ setKeyBinding(SWT.ARROW_UP | SWT.MOD1, ST.TEXT_START);
+ setKeyBinding(SWT.ARROW_DOWN | SWT.MOD1, ST.TEXT_END);
+ setKeyBinding(nextKey | SWT.MOD3, ST.WORD_NEXT);
+ setKeyBinding(previousKey | SWT.MOD3, ST.WORD_PREVIOUS);
+ } else {
+ setKeyBinding(SWT.HOME, ST.LINE_START);
+ setKeyBinding(SWT.END, ST.LINE_END);
+ setKeyBinding(SWT.HOME | SWT.MOD1, ST.TEXT_START);
+ setKeyBinding(SWT.END | SWT.MOD1, ST.TEXT_END);
+ setKeyBinding(nextKey | SWT.MOD1, ST.WORD_NEXT);
+ setKeyBinding(previousKey | SWT.MOD1, ST.WORD_PREVIOUS);
+ }
+ setKeyBinding(SWT.PAGE_UP, ST.PAGE_UP);
+ setKeyBinding(SWT.PAGE_DOWN, ST.PAGE_DOWN);
+ setKeyBinding(SWT.PAGE_UP | SWT.MOD1, ST.WINDOW_START);
+ setKeyBinding(SWT.PAGE_DOWN | SWT.MOD1, ST.WINDOW_END);
+ setKeyBinding(nextKey, ST.COLUMN_NEXT);
+ setKeyBinding(previousKey, ST.COLUMN_PREVIOUS);
+
+ // Selection
+ setKeyBinding(SWT.ARROW_UP | SWT.MOD2, ST.SELECT_LINE_UP);
+ setKeyBinding(SWT.ARROW_DOWN | SWT.MOD2, ST.SELECT_LINE_DOWN);
+ if (IS_MAC) {
+ setKeyBinding(previousKey | SWT.MOD1 | SWT.MOD2, ST.SELECT_LINE_START);
+ setKeyBinding(nextKey | SWT.MOD1 | SWT.MOD2, ST.SELECT_LINE_END);
+ setKeyBinding(SWT.HOME | SWT.MOD2, ST.SELECT_TEXT_START);
+ setKeyBinding(SWT.END | SWT.MOD2, ST.SELECT_TEXT_END);
+ setKeyBinding(SWT.ARROW_UP | SWT.MOD1 | SWT.MOD2, ST.SELECT_TEXT_START);
+ setKeyBinding(SWT.ARROW_DOWN | SWT.MOD1 | SWT.MOD2, ST.SELECT_TEXT_END);
+ setKeyBinding(nextKey | SWT.MOD2 | SWT.MOD3, ST.SELECT_WORD_NEXT);
+ setKeyBinding(previousKey | SWT.MOD2 | SWT.MOD3, ST.SELECT_WORD_PREVIOUS);
+ } else {
+ setKeyBinding(SWT.HOME | SWT.MOD2, ST.SELECT_LINE_START);
+ setKeyBinding(SWT.END | SWT.MOD2, ST.SELECT_LINE_END);
+ setKeyBinding(SWT.HOME | SWT.MOD1 | SWT.MOD2, ST.SELECT_TEXT_START);
+ setKeyBinding(SWT.END | SWT.MOD1 | SWT.MOD2, ST.SELECT_TEXT_END);
+ setKeyBinding(nextKey | SWT.MOD1 | SWT.MOD2, ST.SELECT_WORD_NEXT);
+ setKeyBinding(previousKey | SWT.MOD1 | SWT.MOD2, ST.SELECT_WORD_PREVIOUS);
+ }
+ setKeyBinding(SWT.PAGE_UP | SWT.MOD2, ST.SELECT_PAGE_UP);
+ setKeyBinding(SWT.PAGE_DOWN | SWT.MOD2, ST.SELECT_PAGE_DOWN);
+ setKeyBinding(SWT.PAGE_UP | SWT.MOD1 | SWT.MOD2, ST.SELECT_WINDOW_START);
+ setKeyBinding(SWT.PAGE_DOWN | SWT.MOD1 | SWT.MOD2, ST.SELECT_WINDOW_END);
+ setKeyBinding(nextKey | SWT.MOD2, ST.SELECT_COLUMN_NEXT);
+ setKeyBinding(previousKey | SWT.MOD2, ST.SELECT_COLUMN_PREVIOUS);
+
+ // Modification
+ // Cut, Copy, Paste
+ setKeyBinding('X' | SWT.MOD1, ST.CUT);
+ setKeyBinding('C' | SWT.MOD1, ST.COPY);
+ setKeyBinding('V' | SWT.MOD1, ST.PASTE);
+ if (IS_MAC) {
+ setKeyBinding(SWT.DEL | SWT.MOD2, ST.DELETE_NEXT);
+ setKeyBinding(SWT.BS | SWT.MOD3, ST.DELETE_WORD_PREVIOUS);
+ setKeyBinding(SWT.DEL | SWT.MOD3, ST.DELETE_WORD_NEXT);
+ } else {
+ // Cut, Copy, Paste Wordstar style
+ setKeyBinding(SWT.DEL | SWT.MOD2, ST.CUT);
+ setKeyBinding(SWT.INSERT | SWT.MOD1, ST.COPY);
+ setKeyBinding(SWT.INSERT | SWT.MOD2, ST.PASTE);
+ }
+ setKeyBinding(SWT.BS | SWT.MOD2, ST.DELETE_PREVIOUS);
+ setKeyBinding(SWT.BS, ST.DELETE_PREVIOUS);
+ setKeyBinding(SWT.DEL, ST.DELETE_NEXT);
+ setKeyBinding(SWT.BS | SWT.MOD1, ST.DELETE_WORD_PREVIOUS);
+ setKeyBinding(SWT.DEL | SWT.MOD1, ST.DELETE_WORD_NEXT);
+
+ // Miscellaneous
+ setKeyBinding(SWT.INSERT, ST.TOGGLE_OVERWRITE);
+}
+/**
+ * Create the bitmaps to use for the caret in bidi mode. This
+ * method only needs to be called upon widget creation and when the
+ * font changes (the caret bitmap height needs to match font height).
+ */
+void createCaretBitmaps() {
+ int caretWidth = BIDI_CARET_WIDTH;
+ Display display = getDisplay();
+ if (leftCaretBitmap != null) {
+ if (defaultCaret != null && leftCaretBitmap.equals(defaultCaret.getImage())) {
+ defaultCaret.setImage(null);
+ }
+ leftCaretBitmap.dispose();
+ }
+ int lineHeight = renderer.getLineHeight();
+ leftCaretBitmap = new Image(display, caretWidth, lineHeight);
+ GC gc = new GC (leftCaretBitmap);
+ gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+ gc.fillRectangle(0, 0, caretWidth, lineHeight);
+ gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
+ gc.drawLine(0,0,0,lineHeight);
+ gc.drawLine(0,0,caretWidth-1,0);
+ gc.drawLine(0,1,1,1);
+ gc.dispose();
+
+ if (rightCaretBitmap != null) {
+ if (defaultCaret != null && rightCaretBitmap.equals(defaultCaret.getImage())) {
+ defaultCaret.setImage(null);
+ }
+ rightCaretBitmap.dispose();
+ }
+ rightCaretBitmap = new Image(display, caretWidth, lineHeight);
+ gc = new GC (rightCaretBitmap);
+ gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+ gc.fillRectangle(0, 0, caretWidth, lineHeight);
+ gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
+ gc.drawLine(caretWidth-1,0,caretWidth-1,lineHeight);
+ gc.drawLine(0,0,caretWidth-1,0);
+ gc.drawLine(caretWidth-1,1,1,1);
+ gc.dispose();
+}
+/**
+ * Moves the selected text to the clipboard. The text will be put in the
+ * clipboard in plain text format and RTF format.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void cut() {
+ checkWidget();
+ // Abort cut operation if copy to clipboard fails.
+ // Fixes bug 21030.
+ if (copySelection(DND.CLIPBOARD)) {
+ if (blockSelection && blockXLocation != -1) {
+ insertBlockSelectionText((char)0, SWT.NULL);
+ } else {
+ doDelete();
+ }
+ }
+}
+/**
+ * A mouse move event has occurred. See if we should start autoscrolling. If
+ * the move position is outside of the client area, initiate autoscrolling.
+ * Otherwise, we've moved back into the widget so end autoscrolling.
+ */
+void doAutoScroll(Event event) {
+ int caretLine = getCaretLine();
+ if (event.y > clientAreaHeight - bottomMargin && caretLine != content.getLineCount() - 1) {
+ doAutoScroll(SWT.DOWN, event.y - (clientAreaHeight - bottomMargin));
+ } else if (event.y < topMargin && caretLine != 0) {
+ doAutoScroll(SWT.UP, topMargin - event.y);
+ } else if (event.x < leftMargin && !wordWrap) {
+ doAutoScroll(ST.COLUMN_PREVIOUS, leftMargin - event.x);
+ } else if (event.x > clientAreaWidth - rightMargin && !wordWrap) {
+ doAutoScroll(ST.COLUMN_NEXT, event.x - (clientAreaWidth - rightMargin));
+ } else {
+ endAutoScroll();
+ }
+}
+/**
+ * Initiates autoscrolling.
+ *
+ * @param direction SWT.UP, SWT.DOWN, SWT.COLUMN_NEXT, SWT.COLUMN_PREVIOUS
+ */
+void doAutoScroll(int direction, int distance) {
+ autoScrollDistance = distance;
+ // If we're already autoscrolling in the given direction do nothing
+ if (autoScrollDirection == direction) {
+ return;
+ }
+
+ Runnable timer = null;
+ final Display display = getDisplay();
+ // Set a timer that will simulate the user pressing and holding
+ // down a cursor key (i.e., arrowUp, arrowDown).
+ if (direction == SWT.UP) {
+ timer = new Runnable() {
+ public void run() {
+ if (autoScrollDirection == SWT.UP) {
+ if (blockSelection) {
+ int verticalScrollOffset = getVerticalScrollOffset();
+ int y = blockYLocation - verticalScrollOffset;
+ int pixels = Math.max(-autoScrollDistance, -verticalScrollOffset);
+ if (pixels != 0) {
+ setBlockSelectionLocation(blockXLocation - horizontalScrollOffset, y + pixels, true);
+ scrollVertical(pixels, true);
+ }
+ } else {
+ doSelectionPageUp(autoScrollDistance);
+ }
+ display.timerExec(V_SCROLL_RATE, this);
+ }
+ }
+ };
+ autoScrollDirection = direction;
+ display.timerExec(V_SCROLL_RATE, timer);
+ } else if (direction == SWT.DOWN) {
+ timer = new Runnable() {
+ public void run() {
+ if (autoScrollDirection == SWT.DOWN) {
+ if (blockSelection) {
+ int verticalScrollOffset = getVerticalScrollOffset();
+ int y = blockYLocation - verticalScrollOffset;
+ int max = renderer.getHeight() - verticalScrollOffset - clientAreaHeight;
+ int pixels = Math.min(autoScrollDistance, Math.max(0,max));
+ if (pixels != 0) {
+ setBlockSelectionLocation(blockXLocation - horizontalScrollOffset, y + pixels, true);
+ scrollVertical(pixels, true);
+ }
+ } else {
+ doSelectionPageDown(autoScrollDistance);
+ }
+ display.timerExec(V_SCROLL_RATE, this);
+ }
+ }
+ };
+ autoScrollDirection = direction;
+ display.timerExec(V_SCROLL_RATE, timer);
+ } else if (direction == ST.COLUMN_NEXT) {
+ timer = new Runnable() {
+ public void run() {
+ if (autoScrollDirection == ST.COLUMN_NEXT) {
+ if (blockSelection) {
+ int x = blockXLocation - horizontalScrollOffset;
+ int max = renderer.getWidth() - horizontalScrollOffset - clientAreaWidth;
+ int pixels = Math.min(autoScrollDistance, Math.max(0,max));
+ if (pixels != 0) {
+ setBlockSelectionLocation(x + pixels, blockYLocation - getVerticalScrollOffset(), true);
+ scrollHorizontal(pixels, true);
+ }
+ } else {
+ doVisualNext();
+ setMouseWordSelectionAnchor();
+ doMouseSelection();
+ }
+ display.timerExec(H_SCROLL_RATE, this);
+ }
+ }
+ };
+ autoScrollDirection = direction;
+ display.timerExec(H_SCROLL_RATE, timer);
+ } else if (direction == ST.COLUMN_PREVIOUS) {
+ timer = new Runnable() {
+ public void run() {
+ if (autoScrollDirection == ST.COLUMN_PREVIOUS) {
+ if (blockSelection) {
+ int x = blockXLocation - horizontalScrollOffset;
+ int pixels = Math.max(-autoScrollDistance, -horizontalScrollOffset);
+ if (pixels != 0) {
+ setBlockSelectionLocation(x + pixels, blockYLocation - getVerticalScrollOffset(), true);
+ scrollHorizontal(pixels, true);
+ }
+ } else {
+ doVisualPrevious();
+ setMouseWordSelectionAnchor();
+ doMouseSelection();
+ }
+ display.timerExec(H_SCROLL_RATE, this);
+ }
+ }
+ };
+ autoScrollDirection = direction;
+ display.timerExec(H_SCROLL_RATE, timer);
+ }
+}
+/**
+ * Deletes the previous character. Delete the selected text if any.
+ * Move the caret in front of the deleted text.
+ */
+void doBackspace() {
+ Event event = new Event();
+ event.text = "";
+ if (selection.x != selection.y) {
+ event.start = selection.x;
+ event.end = selection.y;
+ sendKeyEvent(event);
+ } else if (caretOffset > 0) {
+ int lineIndex = content.getLineAtOffset(caretOffset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ if (caretOffset == lineOffset) {
+ lineOffset = content.getOffsetAtLine(lineIndex - 1);
+ event.start = lineOffset + content.getLine(lineIndex - 1).length();
+ event.end = caretOffset;
+ } else {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int start = layout.getPreviousOffset(caretOffset - lineOffset, SWT.MOVEMENT_CHAR);
+ renderer.disposeTextLayout(layout);
+ event.start = start + lineOffset;
+ event.end = caretOffset;
+ }
+ sendKeyEvent(event);
+ }
+}
+void doBlockColumn(boolean next) {
+ if (blockXLocation == -1) setBlockSelectionOffset(caretOffset, false);
+ int x = blockXLocation - horizontalScrollOffset;
+ int y = blockYLocation - getVerticalScrollOffset();
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(x, y, trailing, true);
+ if (offset != -1) {
+ offset += trailing[0];
+ int lineIndex = content.getLineAtOffset(offset);
+ int newOffset;
+ if (next) {
+ newOffset = getClusterNext(offset, lineIndex);
+ } else {
+ newOffset = getClusterPrevious(offset, lineIndex);
+ }
+ offset = newOffset != offset ? newOffset : -1;
+ }
+ if (offset != -1) {
+ setBlockSelectionOffset(offset, true);
+ showCaret();
+ } else {
+ int width = next ? renderer.averageCharWidth : -renderer.averageCharWidth;
+ int maxWidth = Math.max(clientAreaWidth - rightMargin - leftMargin, renderer.getWidth());
+ x = Math.max(0, Math.min(blockXLocation + width, maxWidth)) - horizontalScrollOffset;
+ setBlockSelectionLocation(x, y, true);
+ Rectangle rect = new Rectangle(x, y, 0, 0);
+ showLocation(rect, true);
+ }
+}
+void doBlockWord(boolean next) {
+ if (blockXLocation == -1) setBlockSelectionOffset(caretOffset, false);
+ int x = blockXLocation - horizontalScrollOffset;
+ int y = blockYLocation - getVerticalScrollOffset();
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(x, y, trailing, true);
+ if (offset != -1) {
+ offset += trailing[0];
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ String lineText = content.getLine(lineIndex);
+ int lineLength = lineText.length();
+ int newOffset = offset;
+ if (next) {
+ if (offset < lineOffset + lineLength) {
+ newOffset = getWordNext(offset, SWT.MOVEMENT_WORD);
+ }
+ } else {
+ if (offset > lineOffset) {
+ newOffset = getWordPrevious(offset, SWT.MOVEMENT_WORD);
+ }
+ }
+ offset = newOffset != offset ? newOffset : -1;
+ }
+ if (offset != -1) {
+ setBlockSelectionOffset(offset, true);
+ showCaret();
+ } else {
+ int width = (next ? renderer.averageCharWidth : -renderer.averageCharWidth) * 6;
+ int maxWidth = Math.max(clientAreaWidth - rightMargin - leftMargin, renderer.getWidth());
+ x = Math.max(0, Math.min(blockXLocation + width, maxWidth)) - horizontalScrollOffset;
+ setBlockSelectionLocation(x, y, true);
+ Rectangle rect = new Rectangle(x, y, 0, 0);
+ showLocation(rect, true);
+ }
+}
+void doBlockLineVertical(boolean up) {
+ if (blockXLocation == -1) setBlockSelectionOffset(caretOffset, false);
+ int y = blockYLocation - getVerticalScrollOffset();
+ int lineIndex = getLineIndex(y);
+ if (up) {
+ if (lineIndex > 0) {
+ y = getLinePixel(lineIndex - 1);
+ setBlockSelectionLocation(blockXLocation - horizontalScrollOffset, y, true);
+ if (y < topMargin) {
+ scrollVertical(y - topMargin, true);
+ }
+ }
+ } else {
+ int lineCount = content.getLineCount();
+ if (lineIndex + 1 < lineCount) {
+ y = getLinePixel(lineIndex + 2) - 1;
+ setBlockSelectionLocation(blockXLocation - horizontalScrollOffset, y, true);
+ int bottom = clientAreaHeight - bottomMargin;
+ if (y > bottom) {
+ scrollVertical(y - bottom, true);
+ }
+ }
+ }
+}
+void doBlockLineHorizontal(boolean end) {
+ if (blockXLocation == -1) setBlockSelectionOffset(caretOffset, false);
+ int x = blockXLocation - horizontalScrollOffset;
+ int y = blockYLocation - getVerticalScrollOffset();
+ int lineIndex = getLineIndex(y);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ String lineText = content.getLine(lineIndex);
+ int lineLength = lineText.length();
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(x, y, trailing, true);
+ if (offset != -1) {
+ offset += trailing[0];
+ int newOffset = offset;
+ if (end) {
+ if (offset < lineOffset + lineLength) {
+ newOffset = lineOffset + lineLength;
+ }
+ } else {
+ if (offset > lineOffset) {
+ newOffset = lineOffset;
+ }
+ }
+ offset = newOffset != offset ? newOffset : -1;
+ } else {
+ if (!end) offset = lineOffset + lineLength;
+ }
+ if (offset != -1) {
+ setBlockSelectionOffset(offset, true);
+ showCaret();
+ } else {
+ int maxWidth = Math.max(clientAreaWidth - rightMargin - leftMargin, renderer.getWidth());
+ x = (end ? maxWidth : 0) - horizontalScrollOffset;
+ setBlockSelectionLocation(x, y, true);
+ Rectangle rect = new Rectangle(x, y, 0, 0);
+ showLocation(rect, true);
+ }
+}
+void doBlockSelection(boolean sendEvent) {
+ if (caretOffset > selectionAnchor) {
+ selection.x = selectionAnchor;
+ selection.y = caretOffset;
+ } else {
+ selection.x = caretOffset;
+ selection.y = selectionAnchor;
+ }
+ updateCaretVisibility();
+ setCaretLocation();
+ super.redraw();
+ if (sendEvent) {
+ sendSelectionEvent();
+ }
+}
+/**
+ * Replaces the selection with the character or insert the character at the
+ * current caret position if no selection exists.
+ * <p>
+ * If a carriage return was typed replace it with the line break character
+ * used by the widget on this platform.
+ * </p>
+ *
+ * @param key the character typed by the user
+ */
+void doContent(char key) {
+ if (blockSelection && blockXLocation != -1) {
+ insertBlockSelectionText(key, SWT.NULL);
+ return;
+ }
+
+ Event event = new Event();
+ event.start = selection.x;
+ event.end = selection.y;
+ // replace a CR line break with the widget line break
+ // CR does not make sense on Windows since most (all?) applications
+ // don't recognize CR as a line break.
+ if (key == SWT.CR || key == SWT.LF) {
+ if (!isSingleLine()) {
+ event.text = getLineDelimiter();
+ }
+ } else if (selection.x == selection.y && overwrite && key != TAB) {
+ // no selection and overwrite mode is on and the typed key is not a
+ // tab character (tabs are always inserted without overwriting)?
+ int lineIndex = content.getLineAtOffset(event.end);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ String line = content.getLine(lineIndex);
+ // replace character at caret offset if the caret is not at the
+ // end of the line
+ if (event.end < lineOffset + line.length()) {
+ event.end++;
+ }
+ event.text = new String(new char[] {key});
+ } else {
+ event.text = new String(new char[] {key});
+ }
+ if (event.text != null) {
+ if (textLimit > 0 && content.getCharCount() - (event.end - event.start) >= textLimit) {
+ return;
+ }
+ sendKeyEvent(event);
+ }
+}
+/**
+ * Moves the caret after the last character of the widget content.
+ */
+void doContentEnd() {
+ // place caret at end of first line if receiver is in single
+ // line mode. fixes 4820.
+ if (isSingleLine()) {
+ doLineEnd();
+ } else {
+ int length = content.getCharCount();
+ if (caretOffset < length) {
+ setCaretOffset(length, SWT.DEFAULT);
+ showCaret();
+ }
+ }
+}
+/**
+ * Moves the caret in front of the first character of the widget content.
+ */
+void doContentStart() {
+ if (caretOffset > 0) {
+ setCaretOffset(0, SWT.DEFAULT);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret to the start of the selection if a selection exists.
+ * Otherwise, if no selection exists move the cursor according to the
+ * cursor selection rules.
+ *
+ * @see #doSelectionCursorPrevious
+ */
+void doCursorPrevious() {
+ if (selection.y - selection.x > 0) {
+ setCaretOffset(selection.x, OFFSET_LEADING);
+ showCaret();
+ } else {
+ doSelectionCursorPrevious();
+ }
+}
+/**
+ * Moves the caret to the end of the selection if a selection exists.
+ * Otherwise, if no selection exists move the cursor according to the
+ * cursor selection rules.
+ *
+ * @see #doSelectionCursorNext
+ */
+void doCursorNext() {
+ if (selection.y - selection.x > 0) {
+ setCaretOffset(selection.y, PREVIOUS_OFFSET_TRAILING);
+ showCaret();
+ } else {
+ doSelectionCursorNext();
+ }
+}
+/**
+ * Deletes the next character. Delete the selected text if any.
+ */
+void doDelete() {
+ Event event = new Event();
+ event.text = "";
+ if (selection.x != selection.y) {
+ event.start = selection.x;
+ event.end = selection.y;
+ sendKeyEvent(event);
+ } else if (caretOffset < content.getCharCount()) {
+ int line = content.getLineAtOffset(caretOffset);
+ int lineOffset = content.getOffsetAtLine(line);
+ int lineLength = content.getLine(line).length();
+ if (caretOffset == lineOffset + lineLength) {
+ event.start = caretOffset;
+ event.end = content.getOffsetAtLine(line + 1);
+ } else {
+ event.start = caretOffset;
+ event.end = getClusterNext(caretOffset, line);
+ }
+ sendKeyEvent(event);
+ }
+}
+/**
+ * Deletes the next word.
+ */
+void doDeleteWordNext() {
+ if (selection.x != selection.y) {
+ // if a selection exists, treat the as if
+ // only the delete key was pressed
+ doDelete();
+ } else {
+ Event event = new Event();
+ event.text = "";
+ event.start = caretOffset;
+ event.end = getWordNext(caretOffset, SWT.MOVEMENT_WORD);
+ sendKeyEvent(event);
+ }
+}
+/**
+ * Deletes the previous word.
+ */
+void doDeleteWordPrevious() {
+ if (selection.x != selection.y) {
+ // if a selection exists, treat as if
+ // only the backspace key was pressed
+ doBackspace();
+ } else {
+ Event event = new Event();
+ event.text = "";
+ event.start = getWordPrevious(caretOffset, SWT.MOVEMENT_WORD);
+ event.end = caretOffset;
+ sendKeyEvent(event);
+ }
+}
+/**
+ * Moves the caret one line down and to the same character offset relative
+ * to the beginning of the line. Move the caret to the end of the new line
+ * if the new line is shorter than the character offset.
+ */
+void doLineDown(boolean select) {
+ int caretLine = getCaretLine();
+ int lineCount = content.getLineCount();
+ int y = 0;
+ boolean lastLine = false;
+ if (wordWrap) {
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int lineIndex = getVisualLineIndex(layout, offsetInLine);
+ int layoutLineCount = layout.getLineCount();
+ if (lineIndex == layoutLineCount - 1) {
+ lastLine = caretLine == lineCount - 1;
+ caretLine++;
+ } else {
+ y = layout.getLineBounds(lineIndex + 1).y;
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ lastLine = caretLine == lineCount - 1;
+ caretLine++;
+ }
+ if (lastLine) {
+ if (select) {
+ setCaretOffset(content.getCharCount(), SWT.DEFAULT);
+ }
+ } else {
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, y, caretLine, alignment);
+ setCaretOffset(offset, alignment[0]);
+ }
+ int oldColumnX = columnX;
+ int oldHScrollOffset = horizontalScrollOffset;
+ if (select) {
+ setMouseWordSelectionAnchor();
+ // select first and then scroll to reduce flash when key
+ // repeat scrolls lots of lines
+ doSelection(ST.COLUMN_NEXT);
+ }
+ showCaret();
+ int hScrollChange = oldHScrollOffset - horizontalScrollOffset;
+ columnX = oldColumnX + hScrollChange;
+}
+/**
+ * Moves the caret to the end of the line.
+ */
+void doLineEnd() {
+ int caretLine = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ int lineEndOffset;
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ int lineIndex = getVisualLineIndex(layout, offsetInLine);
+ int[] offsets = layout.getLineOffsets();
+ lineEndOffset = lineOffset + offsets[lineIndex + 1];
+ renderer.disposeTextLayout(layout);
+ } else {
+ int lineLength = content.getLine(caretLine).length();
+ lineEndOffset = lineOffset + lineLength;
+ }
+ if (caretOffset < lineEndOffset) {
+ setCaretOffset(lineEndOffset, PREVIOUS_OFFSET_TRAILING);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret to the beginning of the line.
+ */
+void doLineStart() {
+ int caretLine = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ int lineIndex = getVisualLineIndex(layout, offsetInLine);
+ int[] offsets = layout.getLineOffsets();
+ lineOffset += offsets[lineIndex];
+ renderer.disposeTextLayout(layout);
+ }
+ if (caretOffset > lineOffset) {
+ setCaretOffset(lineOffset, OFFSET_LEADING);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret one line up and to the same character offset relative
+ * to the beginning of the line. Move the caret to the end of the new line
+ * if the new line is shorter than the character offset.
+ */
+void doLineUp(boolean select) {
+ int caretLine = getCaretLine(), y = 0;
+ boolean firstLine = false;
+ if (wordWrap) {
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int lineIndex = getVisualLineIndex(layout, offsetInLine);
+ if (lineIndex == 0) {
+ firstLine = caretLine == 0;
+ if (!firstLine) {
+ caretLine--;
+ y = renderer.getLineHeight(caretLine) - 1;
+ }
+ } else {
+ y = layout.getLineBounds(lineIndex - 1).y;
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ firstLine = caretLine == 0;
+ caretLine--;
+ }
+ if (firstLine) {
+ if (select) {
+ setCaretOffset(0, SWT.DEFAULT);
+ }
+ } else {
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, y, caretLine, alignment);
+ setCaretOffset(offset, alignment[0]);
+ }
+ int oldColumnX = columnX;
+ int oldHScrollOffset = horizontalScrollOffset;
+ if (select) setMouseWordSelectionAnchor();
+ showCaret();
+ if (select) doSelection(ST.COLUMN_PREVIOUS);
+ int hScrollChange = oldHScrollOffset - horizontalScrollOffset;
+ columnX = oldColumnX + hScrollChange;
+}
+void doMouseLinkCursor() {
+ Display display = getDisplay();
+ Point point = display.getCursorLocation();
+ point = display.map(null, this, point);
+ doMouseLinkCursor(point.x, point.y);
+}
+void doMouseLinkCursor(int x, int y) {
+ int offset = getOffsetAtPoint(x, y, null, true);
+ Display display = getDisplay();
+ Cursor newCursor = cursor;
+ if (renderer.hasLink(offset)) {
+ newCursor = display.getSystemCursor(SWT.CURSOR_HAND);
+ } else {
+ if (cursor == null) {
+ int type = blockSelection ? SWT.CURSOR_CROSS : SWT.CURSOR_IBEAM;
+ newCursor = display.getSystemCursor(type);
+ }
+ }
+ if (newCursor != getCursor()) super.setCursor(newCursor);
+}
+/**
+ * Moves the caret to the specified location.
+ *
+ * @param x x location of the new caret position
+ * @param y y location of the new caret position
+ * @param select the location change is a selection operation.
+ * include the line delimiter in the selection
+ */
+void doMouseLocationChange(int x, int y, boolean select) {
+ int line = getLineIndex(y);
+
+ updateCaretDirection = true;
+
+ if (blockSelection) {
+ x = Math.max(leftMargin, Math.min(x, clientAreaWidth - rightMargin));
+ y = Math.max(topMargin, Math.min(y, clientAreaHeight - bottomMargin));
+ if (doubleClickEnabled && clickCount > 1) {
+ boolean wordSelect = (clickCount & 1) == 0;
+ if (wordSelect) {
+ Point left = getPointAtOffset(doubleClickSelection.x);
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(x, y, trailing, true);
+ if (offset != -1) {
+ if (x > left.x) {
+ offset = getWordNext(offset + trailing[0], SWT.MOVEMENT_WORD_END);
+ setBlockSelectionOffset(doubleClickSelection.x, offset, true);
+ } else {
+ offset = getWordPrevious(offset + trailing[0], SWT.MOVEMENT_WORD_START);
+ setBlockSelectionOffset(doubleClickSelection.y, offset, true);
+ }
+ } else {
+ if (x > left.x) {
+ setBlockSelectionLocation(left.x, left.y, x, y, true);
+ } else {
+ Point right = getPointAtOffset(doubleClickSelection.y);
+ setBlockSelectionLocation(right.x, right.y, x, y, true);
+ }
+ }
+ } else {
+ setBlockSelectionLocation(blockXLocation, y, true);
+ }
+ return;
+ } else {
+ if (select) {
+ if (blockXLocation == -1) {
+ setBlockSelectionOffset(caretOffset, false);
+ }
+ } else {
+ clearBlockSelection(true, false);
+ }
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(x, y, trailing, true);
+ if (offset != -1) {
+ if (select) {
+ setBlockSelectionOffset(offset + trailing[0], true);
+ return;
+ }
+ } else {
+ if (isFixedLineHeight() && renderer.fixedPitch) {
+ int avg = renderer.averageCharWidth;
+ x = ((x + avg / 2 - leftMargin + horizontalScrollOffset) / avg * avg) + leftMargin - horizontalScrollOffset;
+ }
+ setBlockSelectionLocation(x, y, true);
+ return;
+ }
+ }
+ }
+
+ // allow caret to be placed below first line only if receiver is
+ // not in single line mode. fixes 4820.
+ if (line < 0 || (isSingleLine() && line > 0)) {
+ return;
+ }
+ int[] alignment = new int[1];
+ int newCaretOffset = getOffsetAtPoint(x, y, alignment);
+ int newCaretAlignemnt = alignment[0];
+
+ if (doubleClickEnabled && clickCount > 1) {
+ newCaretOffset = doMouseWordSelect(x, newCaretOffset, line);
+ }
+
+ int newCaretLine = content.getLineAtOffset(newCaretOffset);
+
+ // Is the mouse within the left client area border or on
+ // a different line? If not the autoscroll selection
+ // could be incorrectly reset. Fixes 1GKM3XS
+ boolean vchange = 0 <= y && y < clientAreaHeight || newCaretLine == 0 || newCaretLine == content.getLineCount() - 1;
+ boolean hchange = 0 <= x && x < clientAreaWidth || wordWrap || newCaretLine != content.getLineAtOffset(caretOffset);
+ if (vchange && hchange && (newCaretOffset != caretOffset || newCaretAlignemnt != caretAlignment)) {
+ setCaretOffset(newCaretOffset, newCaretAlignemnt);
+ if (select) doMouseSelection();
+ showCaret();
+ }
+ if (!select) {
+ setCaretOffset(newCaretOffset, newCaretAlignemnt);
+ clearSelection(true);
+ }
+}
+/**
+ * Updates the selection based on the caret position
+ */
+void doMouseSelection() {
+ if (caretOffset <= selection.x ||
+ (caretOffset > selection.x &&
+ caretOffset < selection.y && selectionAnchor == selection.x)) {
+ doSelection(ST.COLUMN_PREVIOUS);
+ } else {
+ doSelection(ST.COLUMN_NEXT);
+ }
+}
+/**
+ * Returns the offset of the word at the specified offset.
+ * If the current selection extends from high index to low index
+ * (i.e., right to left, or caret is at left border of selection on
+ * non-bidi platforms) the start offset of the word preceding the
+ * selection is returned. If the current selection extends from
+ * low index to high index the end offset of the word following
+ * the selection is returned.
+ *
+ * @param x mouse x location
+ * @param newCaretOffset caret offset of the mouse cursor location
+ * @param line line index of the mouse cursor location
+ */
+int doMouseWordSelect(int x, int newCaretOffset, int line) {
+ // flip selection anchor based on word selection direction from
+ // base double click. Always do this here (and don't rely on doAutoScroll)
+ // because auto scroll only does not cover all possible mouse selections
+ // (e.g., mouse x < 0 && mouse y > caret line y)
+ if (newCaretOffset < selectionAnchor && selectionAnchor == selection.x) {
+ selectionAnchor = doubleClickSelection.y;
+ } else if (newCaretOffset > selectionAnchor && selectionAnchor == selection.y) {
+ selectionAnchor = doubleClickSelection.x;
+ }
+ if (0 <= x && x < clientAreaWidth) {
+ boolean wordSelect = (clickCount & 1) == 0;
+ if (caretOffset == selection.x) {
+ if (wordSelect) {
+ newCaretOffset = getWordPrevious(newCaretOffset, SWT.MOVEMENT_WORD_START);
+ } else {
+ newCaretOffset = content.getOffsetAtLine(line);
+ }
+ } else {
+ if (wordSelect) {
+ newCaretOffset = getWordNext(newCaretOffset, SWT.MOVEMENT_WORD_END);
+ } else {
+ int lineEnd = content.getCharCount();
+ if (line + 1 < content.getLineCount()) {
+ lineEnd = content.getOffsetAtLine(line + 1);
+ }
+ newCaretOffset = lineEnd;
+ }
+ }
+ }
+ return newCaretOffset;
+}
+/**
+ * Scrolls one page down so that the last line (truncated or whole)
+ * of the current page becomes the fully visible top line.
+ * <p>
+ * The caret is scrolled the same number of lines so that its location
+ * relative to the top line remains the same. The exception is the end
+ * of the text where a full page scroll is not possible. In this case
+ * the caret is moved after the last character.
+ * </p>
+ *
+ * @param select whether or not to select the page
+ */
+void doPageDown(boolean select, int height) {
+ if (isSingleLine()) return;
+ int oldColumnX = columnX;
+ int oldHScrollOffset = horizontalScrollOffset;
+ if (isFixedLineHeight()) {
+ int lineCount = content.getLineCount();
+ int caretLine = getCaretLine();
+ if (caretLine < lineCount - 1) {
+ int lineHeight = renderer.getLineHeight();
+ int lines = (height == -1 ? clientAreaHeight : height) / lineHeight;
+ int scrollLines = Math.min(lineCount - caretLine - 1, lines);
+ // ensure that scrollLines never gets negative and at least one
+ // line is scrolled. fixes bug 5602.
+ scrollLines = Math.max(1, scrollLines);
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, getLinePixel(caretLine + scrollLines), alignment);
+ setCaretOffset(offset, alignment[0]);
+ if (select) {
+ doSelection(ST.COLUMN_NEXT);
+ }
+ // scroll one page down or to the bottom
+ int verticalMaximum = lineCount * getVerticalIncrement();
+ int pageSize = clientAreaHeight;
+ int verticalScrollOffset = getVerticalScrollOffset();
+ int scrollOffset = verticalScrollOffset + scrollLines * getVerticalIncrement();
+ if (scrollOffset + pageSize > verticalMaximum) {
+ scrollOffset = verticalMaximum - pageSize;
+ }
+ if (scrollOffset > verticalScrollOffset) {
+ scrollVertical(scrollOffset - verticalScrollOffset, true);
+ }
+ }
+ } else {
+ int lineCount = content.getLineCount();
+ int caretLine = getCaretLine();
+ int lineIndex, lineHeight;
+ if (height == -1) {
+ lineIndex = getPartialBottomIndex();
+ int topY = getLinePixel(lineIndex);
+ lineHeight = renderer.getLineHeight(lineIndex);
+ height = topY;
+ if (topY + lineHeight <= clientAreaHeight) {
+ height += lineHeight;
+ } else {
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int y = clientAreaHeight - topY;
+ for (int i = 0; i < layout.getLineCount(); i++) {
+ Rectangle bounds = layout.getLineBounds(i);
+ if (bounds.contains(bounds.x, y)) {
+ height += bounds.y;
+ break;
+ }
+ }
+ renderer.disposeTextLayout(layout);
+ }
+ }
+ } else {
+ lineIndex = getLineIndex(height);
+ int topLineY = getLinePixel(lineIndex);
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int y = height - topLineY;
+ for (int i = 0; i < layout.getLineCount(); i++) {
+ Rectangle bounds = layout.getLineBounds(i);
+ if (bounds.contains(bounds.x, y)) {
+ height = topLineY + bounds.y + bounds.height;
+ break;
+ }
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ height = topLineY + renderer.getLineHeight(lineIndex);
+ }
+ }
+ int caretHeight = height;
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int offsetInLine = caretOffset - content.getOffsetAtLine(caretLine);
+ lineIndex = getVisualLineIndex(layout, offsetInLine);
+ caretHeight += layout.getLineBounds(lineIndex).y;
+ renderer.disposeTextLayout(layout);
+ }
+ lineIndex = caretLine;
+ lineHeight = renderer.getLineHeight(lineIndex);
+ while (caretHeight - lineHeight >= 0 && lineIndex < lineCount - 1) {
+ caretHeight -= lineHeight;
+ lineHeight = renderer.getLineHeight(++lineIndex);
+ }
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, caretHeight, lineIndex, alignment);
+ setCaretOffset(offset, alignment[0]);
+ if (select) doSelection(ST.COLUMN_NEXT);
+ height = getAvailableHeightBellow(height);
+ scrollVertical(height, true);
+ if (height == 0) setCaretLocation();
+ }
+ showCaret();
+ int hScrollChange = oldHScrollOffset - horizontalScrollOffset;
+ columnX = oldColumnX + hScrollChange;
+}
+/**
+ * Moves the cursor to the end of the last fully visible line.
+ */
+void doPageEnd() {
+ // go to end of line if in single line mode. fixes 5673
+ if (isSingleLine()) {
+ doLineEnd();
+ } else {
+ int bottomOffset;
+ if (wordWrap) {
+ int lineIndex = getPartialBottomIndex();
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int y = (clientAreaHeight - bottomMargin) - getLinePixel(lineIndex);
+ int index = layout.getLineCount() - 1;
+ while (index >= 0) {
+ Rectangle bounds = layout.getLineBounds(index);
+ if (y >= bounds.y + bounds.height) break;
+ index--;
+ }
+ if (index == -1 && lineIndex > 0) {
+ bottomOffset = content.getOffsetAtLine(lineIndex - 1) + content.getLine(lineIndex - 1).length();
+ } else {
+ bottomOffset = content.getOffsetAtLine(lineIndex) + Math.max(0, layout.getLineOffsets()[index + 1] - 1);
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ int lineIndex = getBottomIndex();
+ bottomOffset = content.getOffsetAtLine(lineIndex) + content.getLine(lineIndex).length();
+ }
+ if (caretOffset < bottomOffset) {
+ setCaretOffset(bottomOffset, OFFSET_LEADING);
+ showCaret();
+ }
+ }
+}
+/**
+ * Moves the cursor to the beginning of the first fully visible line.
+ */
+void doPageStart() {
+ int topOffset;
+ if (wordWrap) {
+ int y, lineIndex;
+ if (topIndexY > 0) {
+ lineIndex = topIndex - 1;
+ y = renderer.getLineHeight(lineIndex) - topIndexY;
+ } else {
+ lineIndex = topIndex;
+ y = -topIndexY;
+ }
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int index = 0;
+ int lineCount = layout.getLineCount();
+ while (index < lineCount) {
+ Rectangle bounds = layout.getLineBounds(index);
+ if (y <= bounds.y) break;
+ index++;
+ }
+ if (index == lineCount) {
+ topOffset = content.getOffsetAtLine(lineIndex + 1);
+ } else {
+ topOffset = content.getOffsetAtLine(lineIndex) + layout.getLineOffsets()[index];
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ topOffset = content.getOffsetAtLine(topIndex);
+ }
+ if (caretOffset > topOffset) {
+ setCaretOffset(topOffset, OFFSET_LEADING);
+ showCaret();
+ }
+}
+/**
+ * Scrolls one page up so that the first line (truncated or whole)
+ * of the current page becomes the fully visible last line.
+ * The caret is scrolled the same number of lines so that its location
+ * relative to the top line remains the same. The exception is the beginning
+ * of the text where a full page scroll is not possible. In this case the
+ * caret is moved in front of the first character.
+ */
+void doPageUp(boolean select, int height) {
+ if (isSingleLine()) return;
+ int oldHScrollOffset = horizontalScrollOffset;
+ int oldColumnX = columnX;
+ if (isFixedLineHeight()) {
+ int caretLine = getCaretLine();
+ if (caretLine > 0) {
+ int lineHeight = renderer.getLineHeight();
+ int lines = (height == -1 ? clientAreaHeight : height) / lineHeight;
+ int scrollLines = Math.max(1, Math.min(caretLine, lines));
+ caretLine -= scrollLines;
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, getLinePixel(caretLine), alignment);
+ setCaretOffset(offset, alignment[0]);
+ if (select) {
+ doSelection(ST.COLUMN_PREVIOUS);
+ }
+ int verticalScrollOffset = getVerticalScrollOffset();
+ int scrollOffset = Math.max(0, verticalScrollOffset - scrollLines * getVerticalIncrement());
+ if (scrollOffset < verticalScrollOffset) {
+ scrollVertical(scrollOffset - verticalScrollOffset, true);
+ }
+ }
+ } else {
+ int caretLine = getCaretLine();
+ int lineHeight, lineIndex;
+ if (height == -1) {
+ if (topIndexY == 0) {
+ height = clientAreaHeight;
+ } else {
+ int y;
+ if (topIndex > 0) {
+ lineIndex = topIndex - 1;
+ lineHeight = renderer.getLineHeight(lineIndex);
+ height = clientAreaHeight - topIndexY;
+ y = lineHeight - topIndexY;
+ } else {
+ lineIndex = topIndex;
+ lineHeight = renderer.getLineHeight(lineIndex);
+ height = clientAreaHeight - (lineHeight + topIndexY);
+ y = -topIndexY;
+ }
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ for (int i = 0; i < layout.getLineCount(); i++) {
+ Rectangle bounds = layout.getLineBounds(i);
+ if (bounds.contains(bounds.x, y)) {
+ height += lineHeight - (bounds.y + bounds.height);
+ break;
+ }
+ }
+ renderer.disposeTextLayout(layout);
+ }
+ }
+ } else {
+ lineIndex = getLineIndex(clientAreaHeight - height);
+ int topLineY = getLinePixel(lineIndex);
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int y = topLineY;
+ for (int i = 0; i < layout.getLineCount(); i++) {
+ Rectangle bounds = layout.getLineBounds(i);
+ if (bounds.contains(bounds.x, y)) {
+ height = clientAreaHeight - (topLineY + bounds.y);
+ break;
+ }
+ }
+ renderer.disposeTextLayout(layout);
+ } else {
+ height = clientAreaHeight - topLineY;
+ }
+ }
+ int caretHeight = height;
+ if (wordWrap) {
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int offsetInLine = caretOffset - content.getOffsetAtLine(caretLine);
+ lineIndex = getVisualLineIndex(layout, offsetInLine);
+ caretHeight += layout.getBounds().height - layout.getLineBounds(lineIndex).y;
+ renderer.disposeTextLayout(layout);
+ }
+ lineIndex = caretLine;
+ lineHeight = renderer.getLineHeight(lineIndex);
+ while (caretHeight - lineHeight >= 0 && lineIndex > 0) {
+ caretHeight -= lineHeight;
+ lineHeight = renderer.getLineHeight(--lineIndex);
+ }
+ lineHeight = renderer.getLineHeight(lineIndex);
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(columnX, lineHeight - caretHeight, lineIndex, alignment);
+ setCaretOffset(offset, alignment[0]);
+ if (select) doSelection(ST.COLUMN_PREVIOUS);
+ height = getAvailableHeightAbove(height);
+ scrollVertical(-height, true);
+ if (height == 0) setCaretLocation();
+ }
+ showCaret();
+ int hScrollChange = oldHScrollOffset - horizontalScrollOffset;
+ columnX = oldColumnX + hScrollChange;
+}
+/**
+ * Updates the selection to extend to the current caret position.
+ */
+void doSelection(int direction) {
+ int redrawStart = -1;
+ int redrawEnd = -1;
+ if (selectionAnchor == -1) {
+ selectionAnchor = selection.x;
+ }
+ if (direction == ST.COLUMN_PREVIOUS) {
+ if (caretOffset < selection.x) {
+ // grow selection
+ redrawEnd = selection.x;
+ redrawStart = selection.x = caretOffset;
+ // check if selection has reversed direction
+ if (selection.y != selectionAnchor) {
+ redrawEnd = selection.y;
+ selection.y = selectionAnchor;
+ }
+ // test whether selection actually changed. Fixes 1G71EO1
+ } else if (selectionAnchor == selection.x && caretOffset < selection.y) {
+ // caret moved towards selection anchor (left side of selection).
+ // shrink selection
+ redrawEnd = selection.y;
+ redrawStart = selection.y = caretOffset;
+ }
+ } else {
+ if (caretOffset > selection.y) {
+ // grow selection
+ redrawStart = selection.y;
+ redrawEnd = selection.y = caretOffset;
+ // check if selection has reversed direction
+ if (selection.x != selectionAnchor) {
+ redrawStart = selection.x;
+ selection.x = selectionAnchor;
+ }
+ // test whether selection actually changed. Fixes 1G71EO1
+ } else if (selectionAnchor == selection.y && caretOffset > selection.x) {
+ // caret moved towards selection anchor (right side of selection).
+ // shrink selection
+ redrawStart = selection.x;
+ redrawEnd = selection.x = caretOffset;
+ }
+ }
+ if (redrawStart != -1 && redrawEnd != -1) {
+ internalRedrawRange(redrawStart, redrawEnd - redrawStart);
+ sendSelectionEvent();
+ }
+}
+/**
+ * Moves the caret to the next character or to the beginning of the
+ * next line if the cursor is at the end of a line.
+ */
+void doSelectionCursorNext() {
+ int caretLine = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ int offset, alignment;
+ if (offsetInLine < content.getLine(caretLine).length()) {
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ offsetInLine = layout.getNextOffset(offsetInLine, SWT.MOVEMENT_CLUSTER);
+ int lineStart = layout.getLineOffsets()[layout.getLineIndex(offsetInLine)];
+ renderer.disposeTextLayout(layout);
+ offset = offsetInLine + lineOffset;
+ alignment = offsetInLine == lineStart ? OFFSET_LEADING : PREVIOUS_OFFSET_TRAILING;
+ setCaretOffset(offset, alignment);
+ showCaret();
+ } else if (caretLine < content.getLineCount() - 1 && !isSingleLine()) {
+ caretLine++;
+ offset = content.getOffsetAtLine(caretLine);
+ alignment = PREVIOUS_OFFSET_TRAILING;
+ setCaretOffset(offset, alignment);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret to the previous character or to the end of the previous
+ * line if the cursor is at the beginning of a line.
+ */
+void doSelectionCursorPrevious() {
+ int caretLine = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ int offsetInLine = caretOffset - lineOffset;
+ if (offsetInLine > 0) {
+ int offset = getClusterPrevious(caretOffset, caretLine);
+ setCaretOffset(offset, OFFSET_LEADING);
+ showCaret();
+ } else if (caretLine > 0) {
+ caretLine--;
+ lineOffset = content.getOffsetAtLine(caretLine);
+ int offset = lineOffset + content.getLine(caretLine).length();
+ setCaretOffset(offset, OFFSET_LEADING);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret one line down and to the same character offset relative
+ * to the beginning of the line. Moves the caret to the end of the new line
+ * if the new line is shorter than the character offset.
+ * Moves the caret to the end of the text if the caret already is on the
+ * last line.
+ * Adjusts the selection according to the caret change. This can either add
+ * to or subtract from the old selection, depending on the previous selection
+ * direction.
+ */
+void doSelectionLineDown() {
+ int oldColumnX = columnX = getPointAtOffset(caretOffset).x;
+ doLineDown(true);
+ columnX = oldColumnX;
+}
+/**
+ * Moves the caret one line up and to the same character offset relative
+ * to the beginning of the line. Moves the caret to the end of the new line
+ * if the new line is shorter than the character offset.
+ * Moves the caret to the beginning of the document if it is already on the
+ * first line.
+ * Adjusts the selection according to the caret change. This can either add
+ * to or subtract from the old selection, depending on the previous selection
+ * direction.
+ */
+void doSelectionLineUp() {
+ int oldColumnX = columnX = getPointAtOffset(caretOffset).x;
+ doLineUp(true);
+ columnX = oldColumnX;
+}
+/**
+ * Scrolls one page down so that the last line (truncated or whole)
+ * of the current page becomes the fully visible top line.
+ * <p>
+ * The caret is scrolled the same number of lines so that its location
+ * relative to the top line remains the same. The exception is the end
+ * of the text where a full page scroll is not possible. In this case
+ * the caret is moved after the last character.
+ * <p></p>
+ * Adjusts the selection according to the caret change. This can either add
+ * to or subtract from the old selection, depending on the previous selection
+ * direction.
+ * </p>
+ */
+void doSelectionPageDown(int pixels) {
+ int oldColumnX = columnX = getPointAtOffset(caretOffset).x;
+ doPageDown(true, pixels);
+ columnX = oldColumnX;
+}
+/**
+ * Scrolls one page up so that the first line (truncated or whole)
+ * of the current page becomes the fully visible last line.
+ * <p>
+ * The caret is scrolled the same number of lines so that its location
+ * relative to the top line remains the same. The exception is the beginning
+ * of the text where a full page scroll is not possible. In this case the
+ * caret is moved in front of the first character.
+ * </p><p>
+ * Adjusts the selection according to the caret change. This can either add
+ * to or subtract from the old selection, depending on the previous selection
+ * direction.
+ * </p>
+ */
+void doSelectionPageUp(int pixels) {
+ int oldColumnX = columnX = getPointAtOffset(caretOffset).x;
+ doPageUp(true, pixels);
+ columnX = oldColumnX;
+}
+/**
+ * Moves the caret to the end of the next word .
+ */
+void doSelectionWordNext() {
+ int offset = getWordNext(caretOffset, SWT.MOVEMENT_WORD);
+ // don't change caret position if in single line mode and the cursor
+ // would be on a different line. fixes 5673
+ if (!isSingleLine() ||
+ content.getLineAtOffset(caretOffset) == content.getLineAtOffset(offset)) {
+ // Force symmetrical movement for word next and previous. Fixes 14536
+ setCaretOffset(offset, OFFSET_LEADING);
+ showCaret();
+ }
+}
+/**
+ * Moves the caret to the start of the previous word.
+ */
+void doSelectionWordPrevious() {
+ int offset = getWordPrevious(caretOffset, SWT.MOVEMENT_WORD);
+ setCaretOffset(offset, OFFSET_LEADING);
+ showCaret();
+}
+/**
+ * Moves the caret one character to the left. Do not go to the previous line.
+ * When in a bidi locale and at a R2L character the caret is moved to the
+ * beginning of the R2L segment (visually right) and then one character to the
+ * left (visually left because it's now in a L2R segment).
+ */
+void doVisualPrevious() {
+ int offset = getClusterPrevious(caretOffset, getCaretLine());
+ setCaretOffset(offset, SWT.DEFAULT);
+ showCaret();
+}
+/**
+ * Moves the caret one character to the right. Do not go to the next line.
+ * When in a bidi locale and at a R2L character the caret is moved to the
+ * end of the R2L segment (visually left) and then one character to the
+ * right (visually right because it's now in a L2R segment).
+ */
+void doVisualNext() {
+ int offset = getClusterNext(caretOffset, getCaretLine());
+ setCaretOffset(offset, SWT.DEFAULT);
+ showCaret();
+}
+/**
+ * Moves the caret to the end of the next word.
+ * If a selection exists, move the caret to the end of the selection
+ * and remove the selection.
+ */
+void doWordNext() {
+ if (selection.y - selection.x > 0) {
+ setCaretOffset(selection.y, SWT.DEFAULT);
+ showCaret();
+ } else {
+ doSelectionWordNext();
+ }
+}
+/**
+ * Moves the caret to the start of the previous word.
+ * If a selection exists, move the caret to the start of the selection
+ * and remove the selection.
+ */
+void doWordPrevious() {
+ if (selection.y - selection.x > 0) {
+ setCaretOffset(selection.x, SWT.DEFAULT);
+ showCaret();
+ } else {
+ doSelectionWordPrevious();
+ }
+}
+/**
+ * Ends the autoscroll process.
+ */
+void endAutoScroll() {
+ autoScrollDirection = SWT.NULL;
+}
+public Color getBackground() {
+ checkWidget();
+ if (background == null) {
+ return getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND);
+ }
+ return background;
+}
+/**
+ * Returns the baseline, in pixels.
+ *
+ * Note: this API should not be used if a StyleRange attribute causes lines to
+ * have different heights (i.e. different fonts, rise, etc).
+ *
+ * @return baseline the baseline
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 3.0
+ *
+ * @see #getBaseline(int)
+ */
+public int getBaseline() {
+ checkWidget();
+ return renderer.getBaseline();
+}
+/**
+ * Returns the baseline at the given offset, in pixels.
+ *
+ * @param offset the offset
+ *
+ * @return baseline the baseline
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the offset is outside the valid range (< 0 or > getCharCount())</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public int getBaseline(int offset) {
+ checkWidget();
+ if (!(0 <= offset && offset <= content.getCharCount())) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (isFixedLineHeight()) {
+ return renderer.getBaseline();
+ }
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int lineInParagraph = layout.getLineIndex(Math.min(offset - lineOffset, layout.getText().length()));
+ FontMetrics metrics = layout.getLineMetrics(lineInParagraph);
+ renderer.disposeTextLayout(layout);
+ return metrics.getAscent() + metrics.getLeading();
+}
+/**
+ * Gets the BIDI coloring mode. When true the BIDI text display
+ * algorithm is applied to segments of text that are the same
+ * color.
+ *
+ * @return the current coloring mode
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated use BidiSegmentListener instead.
+ */
+public boolean getBidiColoring() {
+ checkWidget();
+ return bidiColoring;
+}
+/**
+ * Returns whether the widget is in block selection mode.
+ *
+ * @return true if widget is in block selection mode, false otherwise
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public boolean getBlockSelection() {
+ checkWidget();
+ return blockSelection;
+}
+Rectangle getBlockSelectonPosition() {
+ int firstLine = getLineIndex(blockYAnchor - getVerticalScrollOffset());
+ int lastLine = getLineIndex(blockYLocation - getVerticalScrollOffset());
+ if (firstLine > lastLine) {
+ int temp = firstLine;
+ firstLine = lastLine;
+ lastLine = temp;
+ }
+ int left = blockXAnchor;
+ int right = blockXLocation;
+ if (left > right) {
+ left = blockXLocation;
+ right = blockXAnchor;
+ }
+ return new Rectangle (left - horizontalScrollOffset, firstLine, right - horizontalScrollOffset, lastLine);
+}
+/**
+ * Returns the block selection bounds. The bounds is
+ * relative to the upper left corner of the document.
+ *
+ * @return the block selection bounds
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public Rectangle getBlockSelectionBounds() {
+ Rectangle rect;
+ if (blockSelection && blockXLocation != -1) {
+ rect = getBlockSelectionRectangle();
+ } else {
+ Point startPoint = getPointAtOffset(selection.x);
+ Point endPoint = getPointAtOffset(selection.y);
+ int height = getLineHeight(selection.y);
+ rect = new Rectangle(startPoint.x, startPoint.y, endPoint.x - startPoint.x, endPoint.y + height - startPoint.y);
+ if (selection.x == selection.y) {
+ rect.width = getCaretWidth();
+ }
+ }
+ rect.x += horizontalScrollOffset;
+ rect.y += getVerticalScrollOffset();
+ return rect;
+}
+Rectangle getBlockSelectionRectangle() {
+ Rectangle rect = getBlockSelectonPosition();
+ rect.y = getLinePixel(rect.y);
+ rect.width = rect.width - rect.x;
+ rect.height = getLinePixel(rect.height + 1) - rect.y;
+ return rect;
+}
+String getBlockSelectionText(String delimiter) {
+ Rectangle rect = getBlockSelectonPosition();
+ int firstLine = rect.y;
+ int lastLine = rect.height;
+ int left = rect.x;
+ int right = rect.width;
+ StringBuffer buffer = new StringBuffer();
+ for (int lineIndex = firstLine; lineIndex <= lastLine; lineIndex++) {
+ int start = getOffsetAtPoint(left, 0, lineIndex, null);
+ int end = getOffsetAtPoint(right, 0, lineIndex, null);
+ if (start > end) {
+ int temp = start;
+ start = end;
+ end = temp;
+ }
+ String text = content.getTextRange(start, end - start);
+ buffer.append(text);
+ if (lineIndex < lastLine) buffer.append(delimiter);
+ }
+ return buffer.toString();
+}
+/**
+ * Returns the index of the last fully visible line.
+ *
+ * @return index of the last fully visible line.
+ */
+int getBottomIndex() {
+ int bottomIndex;
+ if (isFixedLineHeight()) {
+ int lineCount = 1;
+ int lineHeight = renderer.getLineHeight();
+ if (lineHeight != 0) {
+ // calculate the number of lines that are fully visible
+ int partialTopLineHeight = topIndex * lineHeight - getVerticalScrollOffset();
+ lineCount = (clientAreaHeight - partialTopLineHeight) / lineHeight;
+ }
+ bottomIndex = Math.min(content.getLineCount() - 1, topIndex + Math.max(0, lineCount - 1));
+ } else {
+ int clientAreaHeight = this.clientAreaHeight - bottomMargin;
+ bottomIndex = getLineIndex(clientAreaHeight);
+ if (bottomIndex > 0) {
+ int linePixel = getLinePixel(bottomIndex);
+ int lineHeight = renderer.getLineHeight(bottomIndex);
+ if (linePixel + lineHeight > clientAreaHeight) {
+ if (getLinePixel(bottomIndex - 1) >= topMargin) {
+ bottomIndex--;
+ }
+ }
+ }
+ }
+ return bottomIndex;
+}
+/**
+ * Returns the bottom margin.
+ *
+ * @return the bottom margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public int getBottomMargin() {
+ checkWidget();
+ return bottomMargin;
+}
+Rectangle getBoundsAtOffset(int offset) {
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ String line = content.getLine(lineIndex);
+ Rectangle bounds;
+ if (line.length() != 0) {
+ int offsetInLine = offset - lineOffset;
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ bounds = layout.getBounds(offsetInLine, offsetInLine);
+ renderer.disposeTextLayout(layout);
+ } else {
+ bounds = new Rectangle (0, 0, 0, renderer.getLineHeight());
+ }
+ if (offset == caretOffset) {
+ int lineEnd = lineOffset + line.length();
+ if (offset == lineEnd) {
+ bounds.width += getCaretWidth();
+ }
+ }
+ bounds.x += leftMargin - horizontalScrollOffset;
+ bounds.y += getLinePixel(lineIndex);
+ return bounds;
+}
+/**
+ * Returns the caret position relative to the start of the text.
+ *
+ * @return the caret position relative to the start of the text.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getCaretOffset() {
+ checkWidget();
+ return caretOffset;
+}
+/**
+ * Returns the caret width.
+ *
+ * @return the caret width, 0 if caret is null.
+ */
+int getCaretWidth() {
+ Caret caret = getCaret();
+ if (caret == null) return 0;
+ return caret.getSize().x;
+}
+Object getClipboardContent(int clipboardType) {
+ TextTransfer plainTextTransfer = TextTransfer.getInstance();
+ return clipboard.getContents(plainTextTransfer, clipboardType);
+}
+int getClusterNext(int offset, int lineIndex) {
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ offset -= lineOffset;
+ offset = layout.getNextOffset(offset, SWT.MOVEMENT_CLUSTER);
+ offset += lineOffset;
+ renderer.disposeTextLayout(layout);
+ return offset;
+}
+int getClusterPrevious(int offset, int lineIndex) {
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ offset -= lineOffset;
+ offset = layout.getPreviousOffset(offset, SWT.MOVEMENT_CLUSTER);
+ offset += lineOffset;
+ renderer.disposeTextLayout(layout);
+ return offset;
+}
+/**
+ * Returns the content implementation that is used for text storage.
+ *
+ * @return content the user defined content implementation that is used for
+ * text storage or the default content implementation if no user defined
+ * content implementation has been set.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public StyledTextContent getContent() {
+ checkWidget();
+ return content;
+}
+public boolean getDragDetect () {
+ checkWidget ();
+ return dragDetect;
+}
+/**
+ * Returns whether the widget implements double click mouse behavior.
+ *
+ * @return true if double clicking a word selects the word, false if double clicks
+ * have the same effect as regular mouse clicks
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getDoubleClickEnabled() {
+ checkWidget();
+ return doubleClickEnabled;
+}
+/**
+ * Returns whether the widget content can be edited.
+ *
+ * @return true if content can be edited, false otherwise
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getEditable() {
+ checkWidget();
+ return editable;
+}
+public Color getForeground() {
+ checkWidget();
+ if (foreground == null) {
+ return getDisplay().getSystemColor(SWT.COLOR_LIST_FOREGROUND);
+ }
+ return foreground;
+}
+/**
+ * Returns the horizontal scroll increment.
+ *
+ * @return horizontal scroll increment.
+ */
+int getHorizontalIncrement() {
+ return renderer.averageCharWidth;
+}
+/**
+ * Returns the horizontal scroll offset relative to the start of the line.
+ *
+ * @return horizontal scroll offset relative to the start of the line,
+ * measured in character increments starting at 0, if > 0 the content is scrolled
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getHorizontalIndex() {
+ checkWidget();
+ return horizontalScrollOffset / getHorizontalIncrement();
+}
+/**
+ * Returns the horizontal scroll offset relative to the start of the line.
+ *
+ * @return the horizontal scroll offset relative to the start of the line,
+ * measured in pixel starting at 0, if > 0 the content is scrolled.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getHorizontalPixel() {
+ checkWidget();
+ return horizontalScrollOffset;
+}
+/**
+ * Returns the line indentation of the widget.
+ *
+ * @return the line indentation
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getLineIndent(int)
+ *
+ * @since 3.2
+ */
+public int getIndent() {
+ checkWidget();
+ return indent;
+}
+/**
+ * Returns whether the widget justifies lines.
+ *
+ * @return whether lines are justified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getLineJustify(int)
+ *
+ * @since 3.2
+ */
+public boolean getJustify() {
+ checkWidget();
+ return justify;
+}
+/**
+ * Returns the action assigned to the key.
+ * Returns SWT.NULL if there is no action associated with the key.
+ *
+ * @param key a key code defined in SWT.java or a character.
+ * Optionally ORd with a state mask. Preferred state masks are one or more of
+ * SWT.MOD1, SWT.MOD2, SWT.MOD3, since these masks account for modifier platform
+ * differences. However, there may be cases where using the specific state masks
+ * (i.e., SWT.CTRL, SWT.SHIFT, SWT.ALT, SWT.COMMAND) makes sense.
+ * @return one of the predefined actions defined in ST.java or SWT.NULL
+ * if there is no action associated with the key.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getKeyBinding(int key) {
+ checkWidget();
+ Integer action = (Integer) keyActionMap.get(new Integer(key));
+ return action == null ? SWT.NULL : action.intValue();
+}
+/**
+ * Gets the number of characters.
+ *
+ * @return number of characters in the widget
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getCharCount() {
+ checkWidget();
+ return content.getCharCount();
+}
+/**
+ * Returns the line at the given line index without delimiters.
+ * Index 0 is the first line of the content. When there are not
+ * any lines, getLine(0) is a valid call that answers an empty string.
+ * <p>
+ *
+ * @param lineIndex index of the line to return.
+ * @return the line text without delimiters
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the line index is outside the valid range (< 0 or >= getLineCount())</li>
+ * </ul>
+ * @since 3.4
+ */
+public String getLine(int lineIndex) {
+ checkWidget();
+ if (lineIndex < 0 ||
+ (lineIndex > 0 && lineIndex >= content.getLineCount())) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return content.getLine(lineIndex);
+}
+/**
+ * Returns the alignment of the line at the given index.
+ *
+ * @param index the index of the line
+ *
+ * @return the line alignment
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the index is invalid</li>
+ * </ul>
+ *
+ * @see #getAlignment()
+ *
+ * @since 3.2
+ */
+public int getLineAlignment(int index) {
+ checkWidget();
+ if (index < 0 || index > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return renderer.getLineAlignment(index, alignment);
+}
+/**
+ * Returns the line at the specified offset in the text
+ * where 0 &lt; offset &lt; getCharCount() so that getLineAtOffset(getCharCount())
+ * returns the line of the insert location.
+ *
+ * @param offset offset relative to the start of the content.
+ * 0 <= offset <= getCharCount()
+ * @return line at the specified offset in the text
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the offset is outside the valid range (< 0 or > getCharCount())</li>
+ * </ul>
+ */
+public int getLineAtOffset(int offset) {
+ checkWidget();
+ if (offset < 0 || offset > getCharCount()) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return content.getLineAtOffset(offset);
+}
+/**
+ * Returns the background color of the line at the given index.
+ * Returns null if a LineBackgroundListener has been set or if no background
+ * color has been specified for the line. Should not be called if a
+ * LineBackgroundListener has been set since the listener maintains the
+ * line background colors.
+ *
+ * @param index the index of the line
+ * @return the background color of the line at the given index.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the index is invalid</li>
+ * </ul>
+ */
+public Color getLineBackground(int index) {
+ checkWidget();
+ if (index < 0 || index > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return isListening(LineGetBackground) ? null : renderer.getLineBackground(index, null);
+}
+/**
+ * Returns the bullet of the line at the given index.
+ *
+ * @param index the index of the line
+ *
+ * @return the line bullet
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the index is invalid</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public Bullet getLineBullet(int index) {
+ checkWidget();
+ if (index < 0 || index > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return isListening(LineGetStyle) ? null : renderer.getLineBullet(index, null);
+}
+/**
+ * Returns the line background data for the given line or null if
+ * there is none.
+ *
+ * @param lineOffset offset of the line start relative to the start
+ * of the content.
+ * @param line line to get line background data for
+ * @return line background data for the given line.
+ */
+StyledTextEvent getLineBackgroundData(int lineOffset, String line) {
+ return sendLineEvent(LineGetBackground, lineOffset, line);
+}
+/**
+ * Gets the number of text lines.
+ *
+ * @return the number of lines in the widget
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getLineCount() {
+ checkWidget();
+ return content.getLineCount();
+}
+/**
+ * Returns the number of lines that can be completely displayed in the
+ * widget client area.
+ *
+ * @return number of lines that can be completely displayed in the widget
+ * client area.
+ */
+int getLineCountWhole() {
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ return lineHeight != 0 ? clientAreaHeight / lineHeight : 1;
+ }
+ return getBottomIndex() - topIndex + 1;
+}
+/**
+ * Returns the line delimiter used for entering new lines by key down
+ * or paste operation.
+ *
+ * @return line delimiter used for entering new lines by key down
+ * or paste operation.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getLineDelimiter() {
+ checkWidget();
+ return content.getLineDelimiter();
+}
+/**
+ * Returns the line height.
+ * <p>
+ * Note: this API should not be used if a StyleRange attribute causes lines to
+ * have different heights (i.e. different fonts, rise, etc).
+ * </p>
+ *
+ * @return line height in pixel.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @see #getLineHeight(int)
+ */
+public int getLineHeight() {
+ checkWidget();
+ return renderer.getLineHeight();
+}
+/**
+ * Returns the line height at the given offset.
+ *
+ * @param offset the offset
+ *
+ * @return line height in pixels
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the offset is outside the valid range (< 0 or > getCharCount())</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public int getLineHeight(int offset) {
+ checkWidget();
+ if (!(0 <= offset && offset <= content.getCharCount())) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (isFixedLineHeight()) {
+ return renderer.getLineHeight();
+ }
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int lineInParagraph = layout.getLineIndex(Math.min(offset - lineOffset, layout.getText().length()));
+ int height = layout.getLineBounds(lineInParagraph).height;
+ renderer.disposeTextLayout(layout);
+ return height;
+}
+/**
+ * Returns the indentation of the line at the given index.
+ *
+ * @param index the index of the line
+ *
+ * @return the line indentation
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the index is invalid</li>
+ * </ul>
+ *
+ * @see #getIndent()
+ *
+ * @since 3.2
+ */
+public int getLineIndent(int index) {
+ checkWidget();
+ if (index < 0 || index > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return isListening(LineGetStyle) ? 0 : renderer.getLineIndent(index, indent);
+}
+/**
+ * Returns whether the line at the given index is justified.
+ *
+ * @param index the index of the line
+ *
+ * @return whether the line is justified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the index is invalid</li>
+ * </ul>
+ *
+ * @see #getJustify()
+ *
+ * @since 3.2
+ */
+public boolean getLineJustify(int index) {
+ checkWidget();
+ if (index < 0 || index > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return isListening(LineGetStyle) ? false : renderer.getLineJustify(index, justify);
+}
+/**
+ * Returns the line spacing of the widget.
+ *
+ * @return the line spacing
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public int getLineSpacing() {
+ checkWidget();
+ return lineSpacing;
+}
+/**
+ * Returns the line style data for the given line or null if there is
+ * none.
+ * <p>
+ * If there is a LineStyleListener but it does not set any styles,
+ * the StyledTextEvent.styles field will be initialized to an empty
+ * array.
+ * </p>
+ *
+ * @param lineOffset offset of the line start relative to the start of
+ * the content.
+ * @param line line to get line styles for
+ * @return line style data for the given line. Styles may start before
+ * line start and end after line end
+ */
+StyledTextEvent getLineStyleData(int lineOffset, String line) {
+ return sendLineEvent(LineGetStyle, lineOffset, line);
+}
+/**
+ * Returns the top pixel, relative to the client area, of a given line.
+ * Clamps out of ranges index.
+ *
+ * @param lineIndex the line index, the max value is lineCount. If
+ * lineIndex == lineCount it returns the bottom pixel of the last line.
+ * It means this function can be used to retrieve the bottom pixel of any line.
+ *
+ * @return the top pixel of a given line index
+ *
+ * @since 3.2
+ */
+public int getLinePixel(int lineIndex) {
+ checkWidget();
+ int lineCount = content.getLineCount();
+ lineIndex = Math.max(0, Math.min(lineCount, lineIndex));
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ return lineIndex * lineHeight - getVerticalScrollOffset() + topMargin;
+ }
+ if (lineIndex == topIndex) return topIndexY + topMargin;
+ int height = topIndexY;
+ if (lineIndex > topIndex) {
+ for (int i = topIndex; i < lineIndex; i++) {
+ height += renderer.getLineHeight(i);
+ }
+ } else {
+ for (int i = topIndex - 1; i >= lineIndex; i--) {
+ height -= renderer.getLineHeight(i);
+ }
+ }
+ return height + topMargin;
+}
+/**
+ * Returns the line index for a y, relative to the client area.
+ * The line index returned is always in the range 0..lineCount - 1.
+ *
+ * @param y the y-coordinate pixel
+ *
+ * @return the line index for a given y-coordinate pixel
+ *
+ * @since 3.2
+ */
+public int getLineIndex(int y) {
+ checkWidget();
+ y -= topMargin;
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ int lineIndex = (y + getVerticalScrollOffset()) / lineHeight;
+ int lineCount = content.getLineCount();
+ lineIndex = Math.max(0, Math.min(lineCount - 1, lineIndex));
+ return lineIndex;
+ }
+ if (y == topIndexY) return topIndex;
+ int line = topIndex;
+ if (y < topIndexY) {
+ while (y < topIndexY && line > 0) {
+ y += renderer.getLineHeight(--line);
+ }
+ } else {
+ int lineCount = content.getLineCount();
+ int lineHeight = renderer.getLineHeight(line);
+ while (y - lineHeight >= topIndexY && line < lineCount - 1) {
+ y -= lineHeight;
+ lineHeight = renderer.getLineHeight(++line);
+ }
+ }
+ return line;
+}
+/**
+ * Returns the left margin.
+ *
+ * @return the left margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public int getLeftMargin() {
+ checkWidget();
+ return leftMargin - alignmentMargin;
+}
+/**
+ * Returns the x, y location of the upper left corner of the character
+ * bounding box at the specified offset in the text. The point is
+ * relative to the upper left corner of the widget client area.
+ *
+ * @param offset offset relative to the start of the content.
+ * 0 <= offset <= getCharCount()
+ * @return x, y location of the upper left corner of the character
+ * bounding box at the specified offset in the text.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the offset is outside the valid range (< 0 or > getCharCount())</li>
+ * </ul>
+ */
+public Point getLocationAtOffset(int offset) {
+ checkWidget();
+ if (offset < 0 || offset > getCharCount()) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return getPointAtOffset(offset);
+}
+/**
+ * Returns the character offset of the first character of the given line.
+ *
+ * @param lineIndex index of the line, 0 based relative to the first
+ * line in the content. 0 <= lineIndex < getLineCount(), except
+ * lineIndex may always be 0
+ * @return offset offset of the first character of the line, relative to
+ * the beginning of the document. The first character of the document is
+ * at offset 0.
+ * When there are not any lines, getOffsetAtLine(0) is a valid call that
+ * answers 0.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the line index is outside the valid range (< 0 or >= getLineCount())</li>
+ * </ul>
+ * @since 2.0
+ */
+public int getOffsetAtLine(int lineIndex) {
+ checkWidget();
+ if (lineIndex < 0 ||
+ (lineIndex > 0 && lineIndex >= content.getLineCount())) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return content.getOffsetAtLine(lineIndex);
+}
+/**
+ * Returns the offset of the character at the given location relative
+ * to the first character in the document.
+ * <p>
+ * The return value reflects the character offset that the caret will
+ * be placed at if a mouse click occurred at the specified location.
+ * If the x coordinate of the location is beyond the center of a character
+ * the returned offset will be behind the character.
+ * </p>
+ *
+ * @param point the origin of character bounding box relative to
+ * the origin of the widget client area.
+ * @return offset of the character at the given location relative
+ * to the first character in the document.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when point is null</li>
+ * <li>ERROR_INVALID_ARGUMENT when there is no character at the specified location</li>
+ * </ul>
+ */
+public int getOffsetAtLocation(Point point) {
+ checkWidget();
+ if (point == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ int[] trailing = new int[1];
+ int offset = getOffsetAtPoint(point.x, point.y, trailing, true);
+ if (offset == -1) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ return offset + trailing[0];
+}
+int getOffsetAtPoint(int x, int y, int[] alignment) {
+ int lineIndex = getLineIndex(y);
+ y -= getLinePixel(lineIndex);
+ return getOffsetAtPoint(x, y, lineIndex, alignment);
+}
+int getOffsetAtPoint(int x, int y, int lineIndex, int[] alignment) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ x += horizontalScrollOffset - leftMargin;
+ int[] trailing = new int[1];
+ int offsetInLine = layout.getOffset(x, y, trailing);
+ if (alignment != null) alignment[0] = OFFSET_LEADING;
+ if (trailing[0] != 0) {
+ int lineInParagraph = layout.getLineIndex(offsetInLine + trailing[0]);
+ int lineStart = layout.getLineOffsets()[lineInParagraph];
+ if (offsetInLine + trailing[0] == lineStart) {
+ offsetInLine += trailing[0];
+ if (alignment != null) alignment[0] = PREVIOUS_OFFSET_TRAILING;
+ } else {
+ String line = content.getLine(lineIndex);
+ int level = 0;
+ if (alignment != null) {
+ int offset = offsetInLine;
+ while (offset > 0 && Character.isDigit(line.charAt(offset))) offset--;
+ if (offset == 0 && Character.isDigit(line.charAt(offset))) {
+ level = isMirrored() ? 1 : 0;
+ } else {
+ level = layout.getLevel(offset) & 0x1;
+ }
+ }
+ offsetInLine += trailing[0];
+ if (alignment != null) {
+ int trailingLevel = layout.getLevel(offsetInLine) & 0x1;
+ if ((level ^ trailingLevel) != 0) {
+ alignment[0] = PREVIOUS_OFFSET_TRAILING;
+ } else {
+ alignment[0] = OFFSET_LEADING;
+ }
+ }
+ }
+ }
+ renderer.disposeTextLayout(layout);
+ return offsetInLine + content.getOffsetAtLine(lineIndex);
+}
+int getOffsetAtPoint(int x, int y, int[] trailing, boolean inTextOnly) {
+ if (inTextOnly && y + getVerticalScrollOffset() < 0 || x + horizontalScrollOffset < 0) {
+ return -1;
+ }
+ int bottomIndex = getPartialBottomIndex();
+ int height = getLinePixel(bottomIndex + 1);
+ if (inTextOnly && y > height) {
+ return -1;
+ }
+ int lineIndex = getLineIndex(y);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ x += horizontalScrollOffset - leftMargin;
+ y -= getLinePixel(lineIndex);
+ int offset = layout.getOffset(x, y, trailing);
+ Rectangle rect = layout.getLineBounds(layout.getLineIndex(offset));
+ renderer.disposeTextLayout(layout);
+ if (inTextOnly && !(rect.x <= x && x <= rect.x + rect.width)) {
+ return -1;
+ }
+ return offset + lineOffset;
+}
+/**
+ * Returns the orientation of the receiver.
+ *
+ * @return the orientation style
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1.2
+ */
+public int getOrientation () {
+ checkWidget();
+ return isMirrored() ? SWT.RIGHT_TO_LEFT : SWT.LEFT_TO_RIGHT;
+}
+/**
+ * Returns the index of the last partially visible line.
+ *
+ * @return index of the last partially visible line.
+ */
+int getPartialBottomIndex() {
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ int partialLineCount = Compatibility.ceil(clientAreaHeight, lineHeight);
+ return Math.max(0, Math.min(content.getLineCount(), topIndex + partialLineCount) - 1);
+ }
+ return getLineIndex(clientAreaHeight - bottomMargin);
+}
+/**
+ * Returns the index of the first partially visible line.
+ *
+ * @return index of the first partially visible line.
+ */
+int getPartialTopIndex() {
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ return getVerticalScrollOffset() / lineHeight;
+ }
+ return topIndexY <= 0 ? topIndex : topIndex - 1;
+}
+/**
+ * Returns the content in the specified range using the platform line
+ * delimiter to separate lines.
+ *
+ * @param writer the TextWriter to write line text into
+ * @return the content in the specified range using the platform line
+ * delimiter to separate lines as written by the specified TextWriter.
+ */
+String getPlatformDelimitedText(TextWriter writer) {
+ int end = writer.getStart() + writer.getCharCount();
+ int startLine = content.getLineAtOffset(writer.getStart());
+ int endLine = content.getLineAtOffset(end);
+ String endLineText = content.getLine(endLine);
+ int endLineOffset = content.getOffsetAtLine(endLine);
+
+ for (int i = startLine; i <= endLine; i++) {
+ writer.writeLine(content.getLine(i), content.getOffsetAtLine(i));
+ if (i < endLine) {
+ writer.writeLineDelimiter(PlatformLineDelimiter);
+ }
+ }
+ if (end > endLineOffset + endLineText.length()) {
+ writer.writeLineDelimiter(PlatformLineDelimiter);
+ }
+ writer.close();
+ return writer.toString();
+}
+/**
+ * Returns all the ranges of text that have an associated StyleRange.
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * <p>
+ * The ranges array contains start and length pairs. Each pair refers to
+ * the corresponding style in the styles array. For example, the pair
+ * that starts at ranges[n] with length ranges[n+1] uses the style
+ * at styles[n/2] returned by <code>getStyleRanges(int, int, boolean)</code>.
+ * </p>
+ *
+ * @return the ranges or an empty array if a LineStyleListener has been set.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ *
+ * @see #getStyleRanges(boolean)
+ */
+public int[] getRanges() {
+ checkWidget();
+ if (!isListening(LineGetStyle)) {
+ int[] ranges = renderer.getRanges(0, content.getCharCount());
+ if (ranges != null) return ranges;
+ }
+ return new int[0];
+}
+/**
+ * Returns the ranges of text that have an associated StyleRange.
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * <p>
+ * The ranges array contains start and length pairs. Each pair refers to
+ * the corresponding style in the styles array. For example, the pair
+ * that starts at ranges[n] with length ranges[n+1] uses the style
+ * at styles[n/2] returned by <code>getStyleRanges(int, int, boolean)</code>.
+ * </p>
+ *
+ * @param start the start offset of the style ranges to return
+ * @param length the number of style ranges to return
+ *
+ * @return the ranges or an empty array if a LineStyleListener has been set.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE if start or length are outside the widget content</li>
+ * </ul>
+ *
+ * @since 3.2
+ *
+ * @see #getStyleRanges(int, int, boolean)
+ */
+public int[] getRanges(int start, int length) {
+ checkWidget();
+ int contentLength = getCharCount();
+ int end = start + length;
+ if (start > end || start < 0 || end > contentLength) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (!isListening(LineGetStyle)) {
+ int[] ranges = renderer.getRanges(start, length);
+ if (ranges != null) return ranges;
+ }
+ return new int[0];
+}
+/**
+ * Returns the right margin.
+ *
+ * @return the right margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public int getRightMargin() {
+ checkWidget();
+ return rightMargin;
+}
+/**
+ * Returns the selection.
+ * <p>
+ * Text selections are specified in terms of caret positions. In a text
+ * widget that contains N characters, there are N+1 caret positions,
+ * ranging from 0..N
+ * </p>
+ *
+ * @return start and end of the selection, x is the offset of the first
+ * selected character, y is the offset after the last selected character.
+ * The selection values returned are visual (i.e., x will always always be
+ * <= y). To determine if a selection is right-to-left (RtoL) vs. left-to-right
+ * (LtoR), compare the caretOffset to the start and end of the selection
+ * (e.g., caretOffset == start of selection implies that the selection is RtoL).
+ * @see #getSelectionRange
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getSelection() {
+ checkWidget();
+ return new Point(selection.x, selection.y);
+}
+/**
+ * Returns the selection.
+ *
+ * @return start and length of the selection, x is the offset of the
+ * first selected character, relative to the first character of the
+ * widget content. y is the length of the selection.
+ * The selection values returned are visual (i.e., length will always always be
+ * positive). To determine if a selection is right-to-left (RtoL) vs. left-to-right
+ * (LtoR), compare the caretOffset to the start and end of the selection
+ * (e.g., caretOffset == start of selection implies that the selection is RtoL).
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getSelectionRange() {
+ checkWidget();
+ return new Point(selection.x, selection.y - selection.x);
+}
+/**
+ * Returns the ranges of text that are inside the block selection rectangle.
+ * <p>
+ * The ranges array contains start and length pairs. When the receiver is not
+ * in block selection mode the return arrays contains the start and length of
+ * the regular selection.
+ *
+ * @return the ranges array
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public int[] getSelectionRanges() {
+ checkWidget();
+ if (blockSelection && blockXLocation != -1) {
+ Rectangle rect = getBlockSelectonPosition();
+ int firstLine = rect.y;
+ int lastLine = rect.height;
+ int left = rect.x;
+ int right = rect.width;
+ int[] ranges = new int[(lastLine - firstLine + 1) * 2];
+ int index = 0;
+ for (int lineIndex = firstLine; lineIndex <= lastLine; lineIndex++) {
+ int start = getOffsetAtPoint(left, 0, lineIndex, null);
+ int end = getOffsetAtPoint(right, 0, lineIndex, null);
+ if (start > end) {
+ int temp = start;
+ start = end;
+ end = temp;
+ }
+ ranges[index++] = start;
+ ranges[index++] = end - start;
+ }
+ return ranges;
+ }
+ return new int[] {selection.x, selection.y - selection.x};
+}
+/**
+ * Returns the receiver's selection background color.
+ *
+ * @return the selection background color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.1
+ */
+public Color getSelectionBackground() {
+ checkWidget();
+ if (selectionBackground == null) {
+ return getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
+ }
+ return selectionBackground;
+}
+/**
+ * Gets the number of selected characters.
+ *
+ * @return the number of selected characters.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getSelectionCount() {
+ checkWidget();
+ if (blockSelection && blockXLocation != -1) {
+ return getBlockSelectionText(content.getLineDelimiter()).length();
+ }
+ return getSelectionRange().y;
+}
+/**
+ * Returns the receiver's selection foreground color.
+ *
+ * @return the selection foreground color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.1
+ */
+public Color getSelectionForeground() {
+ checkWidget();
+ if (selectionForeground == null) {
+ return getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION_TEXT);
+ }
+ return selectionForeground;
+}
+/**
+ * Returns the selected text.
+ *
+ * @return selected text, or an empty String if there is no selection.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getSelectionText() {
+ checkWidget();
+ if (blockSelection && blockXLocation != -1) {
+ return getBlockSelectionText(content.getLineDelimiter());
+ }
+ return content.getTextRange(selection.x, selection.y - selection.x);
+}
+public int getStyle() {
+ int style = super.getStyle();
+ style &= ~(SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT | SWT.MIRRORED);
+ if (isMirrored()) {
+ style |= SWT.RIGHT_TO_LEFT | SWT.MIRRORED;
+ } else {
+ style |= SWT.LEFT_TO_RIGHT;
+ }
+ return style;
+}
+
+/**
+ * Returns the text segments that should be treated as if they
+ * had a different direction than the surrounding text.
+ *
+ * @param lineOffset offset of the first character in the line.
+ * 0 based from the beginning of the document.
+ * @param line text of the line to specify bidi segments for
+ * @return text segments that should be treated as if they had a
+ * different direction than the surrounding text. Only the start
+ * index of a segment is specified, relative to the start of the
+ * line. Always starts with 0 and ends with the line length.
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the segment indices returned
+ * by the listener do not start with 0, are not in ascending order,
+ * exceed the line length or have duplicates</li>
+ * </ul>
+ */
+int [] getBidiSegments(int lineOffset, String line) {
+ if (!isBidi()) return null;
+ if (!isListening(LineGetSegments)) {
+ return getBidiSegmentsCompatibility(line, lineOffset);
+ }
+ StyledTextEvent event = sendLineEvent(LineGetSegments, lineOffset, line);
+ int lineLength = line.length();
+ int[] segments;
+ if (event == null || event.segments == null || event.segments.length == 0) {
+ segments = new int[] {0, lineLength};
+ } else {
+ int segmentCount = event.segments.length;
+
+ // test segment index consistency
+ if (event.segments[0] != 0) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ for (int i = 1; i < segmentCount; i++) {
+ if (event.segments[i] <= event.segments[i - 1] || event.segments[i] > lineLength) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ // ensure that last segment index is line end offset
+ if (event.segments[segmentCount - 1] != lineLength) {
+ segments = new int[segmentCount + 1];
+ System.arraycopy(event.segments, 0, segments, 0, segmentCount);
+ segments[segmentCount] = lineLength;
+ } else {
+ segments = event.segments;
+ }
+ }
+ return segments;
+}
+/**
+ * @see #getBidiSegments
+ * Supports deprecated setBidiColoring API. Remove when API is removed.
+ */
+int [] getBidiSegmentsCompatibility(String line, int lineOffset) {
+ int lineLength = line.length();
+ if (!bidiColoring) {
+ return new int[] {0, lineLength};
+ }
+ StyleRange [] styles = null;
+ StyledTextEvent event = getLineStyleData(lineOffset, line);
+ if (event != null) {
+ styles = event.styles;
+ } else {
+ styles = renderer.getStyleRanges(lineOffset, lineLength, true);
+ }
+ if (styles == null || styles.length == 0) {
+ return new int[] {0, lineLength};
+ }
+ int k=0, count = 1;
+ while (k < styles.length && styles[k].start == 0 && styles[k].length == lineLength) {
+ k++;
+ }
+ int[] offsets = new int[(styles.length - k) * 2 + 2];
+ for (int i = k; i < styles.length; i++) {
+ StyleRange style = styles[i];
+ int styleLineStart = Math.max(style.start - lineOffset, 0);
+ int styleLineEnd = Math.max(style.start + style.length - lineOffset, styleLineStart);
+ styleLineEnd = Math.min (styleLineEnd, line.length ());
+ if (i > 0 && count > 1 &&
+ ((styleLineStart >= offsets[count-2] && styleLineStart <= offsets[count-1]) ||
+ (styleLineEnd >= offsets[count-2] && styleLineEnd <= offsets[count-1])) &&
+ style.similarTo(styles[i-1])) {
+ offsets[count-2] = Math.min(offsets[count-2], styleLineStart);
+ offsets[count-1] = Math.max(offsets[count-1], styleLineEnd);
+ } else {
+ if (styleLineStart > offsets[count - 1]) {
+ offsets[count] = styleLineStart;
+ count++;
+ }
+ offsets[count] = styleLineEnd;
+ count++;
+ }
+ }
+ // add offset for last non-colored segment in line, if any
+ if (lineLength > offsets[count-1]) {
+ offsets [count] = lineLength;
+ count++;
+ }
+ if (count == offsets.length) {
+ return offsets;
+ }
+ int [] result = new int [count];
+ System.arraycopy (offsets, 0, result, 0, count);
+ return result;
+}
+/**
+ * Returns the style range at the given offset.
+ * <p>
+ * Returns null if a LineStyleListener has been set or if a style is not set
+ * for the offset.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param offset the offset to return the style for.
+ * 0 <= offset < getCharCount() must be true.
+ * @return a StyleRange with start == offset and length == 1, indicating
+ * the style at the given offset. null if a LineStyleListener has been set
+ * or if a style is not set for the given offset.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the offset is invalid</li>
+ * </ul>
+ */
+public StyleRange getStyleRangeAtOffset(int offset) {
+ checkWidget();
+ if (offset < 0 || offset >= getCharCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (!isListening(LineGetStyle)) {
+ StyleRange[] ranges = renderer.getStyleRanges(offset, 1, true);
+ if (ranges != null) return ranges[0];
+ }
+ return null;
+}
+/**
+ * Returns the styles.
+ * <p>
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * <p></p>
+ * Note: Because a StyleRange includes the start and length, the
+ * same instance cannot occur multiple times in the array of styles.
+ * If the same style attributes, such as font and color, occur in
+ * multiple StyleRanges, <code>getStyleRanges(boolean)</code>
+ * can be used to get the styles without the ranges.
+ * </p>
+ *
+ * @return the styles or an empty array if a LineStyleListener has been set.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getStyleRanges(boolean)
+ */
+public StyleRange[] getStyleRanges() {
+ checkWidget();
+ return getStyleRanges(0, content.getCharCount(), true);
+}
+/**
+ * Returns the styles.
+ * <p>
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p><p>
+ * Note: When <code>includeRanges</code> is true, the start and length
+ * fields of each StyleRange will be valid, however the StyleRange
+ * objects may need to be cloned. When <code>includeRanges</code> is
+ * false, <code>getRanges(int, int)</code> can be used to get the
+ * associated ranges.
+ * </p>
+ *
+ * @param includeRanges whether the start and length field of the StyleRanges should be set.
+ *
+ * @return the styles or an empty array if a LineStyleListener has been set.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.2
+ *
+ * @see #getRanges(int, int)
+ * @see #setStyleRanges(int[], StyleRange[])
+ */
+public StyleRange[] getStyleRanges(boolean includeRanges) {
+ checkWidget();
+ return getStyleRanges(0, content.getCharCount(), includeRanges);
+}
+/**
+ * Returns the styles for the given text range.
+ * <p>
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p><p>
+ * Note: Because the StyleRange includes the start and length, the
+ * same instance cannot occur multiple times in the array of styles.
+ * If the same style attributes, such as font and color, occur in
+ * multiple StyleRanges, <code>getStyleRanges(int, int, boolean)</code>
+ * can be used to get the styles without the ranges.
+ * </p>
+ * @param start the start offset of the style ranges to return
+ * @param length the number of style ranges to return
+ *
+ * @return the styles or an empty array if a LineStyleListener has
+ * been set. The returned styles will reflect the given range. The first
+ * returned <code>StyleRange</code> will have a starting offset >= start
+ * and the last returned <code>StyleRange</code> will have an ending
+ * offset <= start + length - 1
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or end are outside the widget content</li>
+ * </ul>
+ *
+ * @see #getStyleRanges(int, int, boolean)
+ *
+ * @since 3.0
+ */
+public StyleRange[] getStyleRanges(int start, int length) {
+ checkWidget();
+ return getStyleRanges(start, length, true);
+}
+/**
+ * Returns the styles for the given text range.
+ * <p>
+ * Returns an empty array if a LineStyleListener has been set.
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p><p>
+ * Note: When <code>includeRanges</code> is true, the start and length
+ * fields of each StyleRange will be valid, however the StyleRange
+ * objects may need to be cloned. When <code>includeRanges</code> is
+ * false, <code>getRanges(int, int)</code> can be used to get the
+ * associated ranges.
+ * </p>
+ *
+ * @param start the start offset of the style ranges to return
+ * @param length the number of style ranges to return
+ * @param includeRanges whether the start and length field of the StyleRanges should be set.
+ *
+ * @return the styles or an empty array if a LineStyleListener has
+ * been set. The returned styles will reflect the given range. The first
+ * returned <code>StyleRange</code> will have a starting offset >= start
+ * and the last returned <code>StyleRange</code> will have an ending
+ * offset <= start + length - 1
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or end are outside the widget content</li>
+ * </ul>
+ *
+ * @since 3.2
+ *
+ * @see #getRanges(int, int)
+ * @see #setStyleRanges(int[], StyleRange[])
+ */
+public StyleRange[] getStyleRanges(int start, int length, boolean includeRanges) {
+ checkWidget();
+ int contentLength = getCharCount();
+ int end = start + length;
+ if (start > end || start < 0 || end > contentLength) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (!isListening(LineGetStyle)) {
+ StyleRange[] ranges = renderer.getStyleRanges(start, length, includeRanges);
+ if (ranges != null) return ranges;
+ }
+ return new StyleRange[0];
+}
+/**
+ * Returns the tab width measured in characters.
+ *
+ * @return tab width measured in characters
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTabs() {
+ checkWidget();
+ return tabLength;
+}
+/**
+ * Returns a copy of the widget content.
+ *
+ * @return copy of the widget content
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getText() {
+ checkWidget();
+ return content.getTextRange(0, getCharCount());
+}
+/**
+ * Returns the widget content between the two offsets.
+ *
+ * @param start offset of the first character in the returned String
+ * @param end offset of the last character in the returned String
+ * @return widget content starting at start and ending at end
+ * @see #getTextRange(int,int)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or end are outside the widget content</li>
+ * </ul>
+ */
+public String getText(int start, int end) {
+ checkWidget();
+ int contentLength = getCharCount();
+ if (start < 0 || start >= contentLength || end < 0 || end >= contentLength || start > end) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return content.getTextRange(start, end - start + 1);
+}
+/**
+ * Returns the smallest bounding rectangle that includes the characters between two offsets.
+ *
+ * @param start offset of the first character included in the bounding box
+ * @param end offset of the last character included in the bounding box
+ * @return bounding box of the text between start and end
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or end are outside the widget content</li>
+ * </ul>
+ * @since 3.1
+ */
+public Rectangle getTextBounds(int start, int end) {
+ checkWidget();
+ int contentLength = getCharCount();
+ if (start < 0 || start >= contentLength || end < 0 || end >= contentLength || start > end) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ int lineStart = content.getLineAtOffset(start);
+ int lineEnd = content.getLineAtOffset(end);
+ Rectangle rect;
+ int y = getLinePixel(lineStart);
+ int height = 0;
+ int left = 0x7fffffff, right = 0;
+ for (int i = lineStart; i <= lineEnd; i++) {
+ int lineOffset = content.getOffsetAtLine(i);
+ TextLayout layout = renderer.getTextLayout(i);
+ int length = layout.getText().length();
+ if (length > 0) {
+ if (i == lineStart) {
+ if (i == lineEnd) {
+ rect = layout.getBounds(start - lineOffset, end - lineOffset);
+ } else {
+ rect = layout.getBounds(start - lineOffset, length);
+ }
+ y += rect.y;
+ } else if (i == lineEnd) {
+ rect = layout.getBounds(0, end - lineOffset);
+ } else {
+ rect = layout.getBounds();
+ }
+ left = Math.min(left, rect.x);
+ right = Math.max(right, rect.x + rect.width);
+ height += rect.height;
+ } else {
+ height += renderer.getLineHeight();
+ }
+ renderer.disposeTextLayout(layout);
+ }
+ rect = new Rectangle (left, y, right-left, height);
+ rect.x += leftMargin - horizontalScrollOffset;
+ return rect;
+}
+/**
+ * Returns the widget content starting at start for length characters.
+ *
+ * @param start offset of the first character in the returned String
+ * @param length number of characters to return
+ * @return widget content starting at start and extending length characters.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or length are outside the widget content</li>
+ * </ul>
+ */
+public String getTextRange(int start, int length) {
+ checkWidget();
+ int contentLength = getCharCount();
+ int end = start + length;
+ if (start > end || start < 0 || end > contentLength) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ return content.getTextRange(start, length);
+}
+/**
+ * Returns the maximum number of characters that the receiver is capable of holding.
+ *
+ * @return the text limit
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTextLimit() {
+ checkWidget();
+ return textLimit;
+}
+/**
+ * Gets the top index.
+ * <p>
+ * The top index is the index of the fully visible line that is currently
+ * at the top of the widget or the topmost partially visible line if no line is fully visible.
+ * The top index changes when the widget is scrolled. Indexing is zero based.
+ * </p>
+ *
+ * @return the index of the top line
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTopIndex() {
+ checkWidget();
+ return topIndex;
+}
+/**
+ * Returns the top margin.
+ *
+ * @return the top margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public int getTopMargin() {
+ checkWidget();
+ return topMargin;
+}
+/**
+ * Gets the top pixel.
+ * <p>
+ * The top pixel is the pixel position of the line that is
+ * currently at the top of the widget. The text widget can be scrolled by pixels
+ * by dragging the scroll thumb so that a partial line may be displayed at the top
+ * the widget. The top pixel changes when the widget is scrolled. The top pixel
+ * does not include the widget trimming.
+ * </p>
+ *
+ * @return pixel position of the top line
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getTopPixel() {
+ checkWidget();
+ return getVerticalScrollOffset();
+}
+/**
+ * Returns the vertical scroll increment.
+ *
+ * @return vertical scroll increment.
+ */
+int getVerticalIncrement() {
+ return renderer.getLineHeight();
+}
+int getVerticalScrollOffset() {
+ if (verticalScrollOffset == -1) {
+ renderer.calculate(0, topIndex);
+ int height = 0;
+ for (int i = 0; i < topIndex; i++) {
+ height += renderer.getLineHeight(i);
+ }
+ height -= topIndexY;
+ verticalScrollOffset = height;
+ }
+ return verticalScrollOffset;
+}
+int getVisualLineIndex(TextLayout layout, int offsetInLine) {
+ int lineIndex = layout.getLineIndex(offsetInLine);
+ int[] offsets = layout.getLineOffsets();
+ if (lineIndex != 0 && offsetInLine == offsets[lineIndex]) {
+ int lineY = layout.getLineBounds(lineIndex).y;
+ int caretY = getCaret().getLocation().y - topMargin - getLinePixel(getCaretLine());
+ if (lineY > caretY) lineIndex--;
+ }
+ return lineIndex;
+}
+int getCaretDirection() {
+ if (!isBidiCaret()) return SWT.DEFAULT;
+ if (ime.getCompositionOffset() != -1) return SWT.DEFAULT;
+ if (!updateCaretDirection && caretDirection != SWT.NULL) return caretDirection;
+ updateCaretDirection = false;
+ int caretLine = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(caretLine);
+ String line = content.getLine(caretLine);
+ int offset = caretOffset - lineOffset;
+ int lineLength = line.length();
+ if (lineLength == 0) return isMirrored() ? SWT.RIGHT : SWT.LEFT;
+ if (caretAlignment == PREVIOUS_OFFSET_TRAILING && offset > 0) offset--;
+ if (offset == lineLength && offset > 0) offset--;
+ while (offset > 0 && Character.isDigit(line.charAt(offset))) offset--;
+ if (offset == 0 && Character.isDigit(line.charAt(offset))) {
+ return isMirrored() ? SWT.RIGHT : SWT.LEFT;
+ }
+ TextLayout layout = renderer.getTextLayout(caretLine);
+ int level = layout.getLevel(offset);
+ renderer.disposeTextLayout(layout);
+ return ((level & 1) != 0) ? SWT.RIGHT : SWT.LEFT;
+}
+/*
+ * Returns the index of the line the caret is on.
+ */
+int getCaretLine() {
+ return content.getLineAtOffset(caretOffset);
+}
+int getWrapWidth () {
+ if (wordWrap && !isSingleLine()) {
+ int width = clientAreaWidth - leftMargin - rightMargin - getCaretWidth();
+ return width > 0 ? width : 1;
+ }
+ return -1;
+}
+int getWordNext (int offset, int movement) {
+ int newOffset, lineOffset;
+ String lineText;
+ if (offset >= getCharCount()) {
+ newOffset = offset;
+ int lineIndex = content.getLineCount() - 1;
+ lineOffset = content.getOffsetAtLine(lineIndex);
+ lineText = content.getLine(lineIndex);
+ } else {
+ int lineIndex = content.getLineAtOffset(offset);
+ lineOffset = content.getOffsetAtLine(lineIndex);
+ lineText = content.getLine(lineIndex);
+ int lineLength = lineText.length();
+ if (offset == lineOffset + lineLength) {
+ newOffset = content.getOffsetAtLine(lineIndex + 1);
+ } else {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ newOffset = lineOffset + layout.getNextOffset(offset - lineOffset, movement);
+ renderer.disposeTextLayout(layout);
+ }
+ }
+ return sendWordBoundaryEvent(WordNext, movement, offset, newOffset, lineText, lineOffset);
+}
+int getWordPrevious(int offset, int movement) {
+ int newOffset, lineOffset;
+ String lineText;
+ if (offset <= 0) {
+ newOffset = 0;
+ int lineIndex = content.getLineAtOffset(newOffset);
+ lineOffset = content.getOffsetAtLine(lineIndex);
+ lineText = content.getLine(lineIndex);
+ } else {
+ int lineIndex = content.getLineAtOffset(offset);
+ lineOffset = content.getOffsetAtLine(lineIndex);
+ lineText = content.getLine(lineIndex);
+ if (offset == lineOffset) {
+ String nextLineText = content.getLine(lineIndex - 1);
+ int nextLineOffset = content.getOffsetAtLine(lineIndex - 1);
+ newOffset = nextLineOffset + nextLineText.length();
+ } else {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ newOffset = lineOffset + layout.getPreviousOffset(offset - lineOffset, movement);
+ renderer.disposeTextLayout(layout);
+ }
+ }
+ return sendWordBoundaryEvent(WordPrevious, movement, offset, newOffset, lineText, lineOffset);
+}
+/**
+ * Returns whether the widget wraps lines.
+ *
+ * @return true if widget wraps lines, false otherwise
+ * @since 2.0
+ */
+public boolean getWordWrap() {
+ checkWidget();
+ return wordWrap;
+}
+/**
+ * Returns the location of the given offset.
+ * <p>
+ * <b>NOTE:</b> Does not return correct values for true italic fonts (vs. slanted fonts).
+ * </p>
+ *
+ * @return location of the character at the given offset in the line.
+ */
+Point getPointAtOffset(int offset) {
+ int lineIndex = content.getLineAtOffset(offset);
+ String line = content.getLine(lineIndex);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ int offsetInLine = offset - lineOffset;
+ int lineLength = line.length();
+ if (lineIndex < content.getLineCount() - 1) {
+ int endLineOffset = content.getOffsetAtLine(lineIndex + 1) - 1;
+ if (lineLength < offsetInLine && offsetInLine <= endLineOffset) {
+ offsetInLine = lineLength;
+ }
+ }
+ Point point;
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ if (lineLength != 0 && offsetInLine <= lineLength) {
+ if (offsetInLine == lineLength) {
+ point = layout.getLocation(offsetInLine - 1, true);
+ } else {
+ switch (caretAlignment) {
+ case OFFSET_LEADING:
+ point = layout.getLocation(offsetInLine, false);
+ break;
+ case PREVIOUS_OFFSET_TRAILING:
+ default:
+ if (offsetInLine == 0) {
+ point = layout.getLocation(offsetInLine, false);
+ } else {
+ point = layout.getLocation(offsetInLine - 1, true);
+ }
+ break;
+ }
+ }
+ } else {
+ point = new Point(layout.getIndent(), 0);
+ }
+ renderer.disposeTextLayout(layout);
+ point.x += leftMargin - horizontalScrollOffset;
+ point.y += getLinePixel(lineIndex);
+ return point;
+}
+/**
+ * Inserts a string. The old selection is replaced with the new text.
+ *
+ * @param string the string
+ * @see #replaceTextRange(int,int,String)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when string is null</li>
+ * </ul>
+ */
+public void insert(String string) {
+ checkWidget();
+ if (string == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ if (blockSelection) {
+ insertBlockSelectionText(string, false);
+ } else {
+ Point sel = getSelectionRange();
+ replaceTextRange(sel.x, sel.y, string);
+ }
+}
+int insertBlockSelectionText(String text, boolean fillWithSpaces) {
+ int lineCount = 1;
+ for (int i = 0; i < text.length(); i++) {
+ char ch = text.charAt(i);
+ if (ch == '\n' || ch == '\r') {
+ lineCount++;
+ if (ch == '\r' && i + 1 < text.length() && text.charAt(i + 1) == '\n') {
+ i++;
+ }
+ }
+ }
+ String[] lines = new String[lineCount];
+ int start = 0;
+ lineCount = 0;
+ for (int i = 0; i < text.length(); i++) {
+ char ch = text.charAt(i);
+ if (ch == '\n' || ch == '\r') {
+ lines[lineCount++] = text.substring(start, i);
+ if (ch == '\r' && i + 1 < text.length() && text.charAt(i + 1) == '\n') {
+ i++;
+ }
+ start = i + 1;
+ }
+ }
+ lines[lineCount++] = text.substring(start);
+ if (fillWithSpaces) {
+ int maxLength = 0;
+ for (int i = 0; i < lines.length; i++) {
+ int length = lines[i].length();
+ maxLength = Math.max(maxLength, length);
+ }
+ for (int i = 0; i < lines.length; i++) {
+ String line = lines[i];
+ int length = line.length();
+ if (length < maxLength) {
+ int numSpaces = maxLength - length;;
+ StringBuffer buffer = new StringBuffer(length + numSpaces);
+ buffer.append(line);
+ for (int j = 0; j < numSpaces; j++) buffer.append(' ');
+ lines[i] = buffer.toString();
+ }
+ }
+ }
+ int firstLine, lastLine, left, right;
+ if (blockXLocation != -1) {
+ Rectangle rect = getBlockSelectonPosition();
+ firstLine = rect.y;
+ lastLine = rect.height;
+ left = rect.x;
+ right = rect.width;
+ } else {
+ firstLine = lastLine = getCaretLine();
+ left = right = getPointAtOffset(caretOffset).x;
+ }
+ start = caretOffset;
+ int caretLine = getCaretLine();
+ int index = 0, lineIndex = firstLine;
+ while (lineIndex <= lastLine) {
+ String string = index < lineCount ? lines[index++] : "";
+ int lineStart = sendTextEvent(left, right, lineIndex, string, fillWithSpaces);
+ if (lineIndex == caretLine) start = lineStart;
+ lineIndex++;
+ }
+ while (index < lineCount) {
+ int lineStart = sendTextEvent(left, left, lineIndex, lines[index++], fillWithSpaces);
+ if (lineIndex == caretLine) start = lineStart;
+ lineIndex++;
+ }
+ return start;
+}
+void insertBlockSelectionText(char key, int action) {
+ if (key == SWT.CR || key == SWT.LF) return;
+ Rectangle rect = getBlockSelectonPosition();
+ int firstLine = rect.y;
+ int lastLine = rect.height;
+ int left = rect.x;
+ int right = rect.width;
+ int[] trailing = new int[1];
+ int offset = 0, delta = 0;
+ String text = key != 0 ? new String(new char[] {key}) : "";
+ int length = text.length();
+ for (int lineIndex = firstLine; lineIndex <= lastLine; lineIndex++) {
+ String line = content.getLine(lineIndex);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ int lineEndOffset = lineOffset + line.length();
+ int linePixel = getLinePixel(lineIndex);
+ int start = getOffsetAtPoint(left, linePixel, trailing, true);
+ boolean outOfLine = start == -1;
+ if (outOfLine) {
+ start = left < leftMargin ? lineOffset : lineEndOffset;
+ } else {
+ start += trailing[0];
+ }
+ int end = getOffsetAtPoint(right, linePixel, trailing, true);
+ if (end == -1) {
+ end = right < leftMargin ? lineOffset : lineEndOffset;
+ } else {
+ end += trailing[0];
+ }
+ if (start > end) {
+ int temp = start;
+ start = end;
+ end = temp;
+ }
+ if (start == end && !outOfLine) {
+ switch (action) {
+ case ST.DELETE_PREVIOUS:
+ if (start > lineOffset) start = getClusterPrevious(start, lineIndex);
+ break;
+ case ST.DELETE_NEXT:
+ if (end < lineEndOffset) end = getClusterNext(end, lineIndex);
+ break;
+ }
+ }
+ if (outOfLine) {
+ if (line.length() >= delta) {
+ delta = line.length();
+ offset = lineEndOffset + length;
+ }
+ } else {
+ offset = start + length;
+ delta = content.getCharCount();
+ }
+ Event event = new Event();
+ event.text = text;
+ event.start = start;
+ event.end = end;
+ sendKeyEvent(event);
+ }
+ int x = getPointAtOffset(offset).x;
+ int verticalScrollOffset = getVerticalScrollOffset();
+ setBlockSelectionLocation(x, blockYAnchor - verticalScrollOffset, x, blockYLocation - verticalScrollOffset, false);
+}
+/**
+ * Creates content change listeners and set the default content model.
+ */
+void installDefaultContent() {
+ textChangeListener = new TextChangeListener() {
+ public void textChanging(TextChangingEvent event) {
+ handleTextChanging(event);
+ }
+ public void textChanged(TextChangedEvent event) {
+ handleTextChanged(event);
+ }
+ public void textSet(TextChangedEvent event) {
+ handleTextSet(event);
+ }
+ };
+ content = new DefaultContent();
+ content.addTextChangeListener(textChangeListener);
+}
+/**
+ * Adds event listeners
+ */
+void installListeners() {
+ ScrollBar verticalBar = getVerticalBar();
+ ScrollBar horizontalBar = getHorizontalBar();
+
+ listener = new Listener() {
+ public void handleEvent(Event event) {
+ switch (event.type) {
+ case SWT.Dispose: handleDispose(event); break;
+ case SWT.KeyDown: handleKeyDown(event); break;
+ case SWT.KeyUp: handleKeyUp(event); break;
+ case SWT.MouseDown: handleMouseDown(event); break;
+ case SWT.MouseUp: handleMouseUp(event); break;
+ case SWT.MouseMove: handleMouseMove(event); break;
+ case SWT.Paint: handlePaint(event); break;
+ case SWT.Resize: handleResize(event); break;
+ case SWT.Traverse: handleTraverse(event); break;
+ }
+ }
+ };
+ addListener(SWT.Dispose, listener);
+ addListener(SWT.KeyDown, listener);
+ addListener(SWT.KeyUp, listener);
+ addListener(SWT.MouseDown, listener);
+ addListener(SWT.MouseUp, listener);
+ addListener(SWT.MouseMove, listener);
+ addListener(SWT.Paint, listener);
+ addListener(SWT.Resize, listener);
+ addListener(SWT.Traverse, listener);
+ ime.addListener(SWT.ImeComposition, new Listener() {
+ public void handleEvent(Event event) {
+ switch (event.detail) {
+ case SWT.COMPOSITION_SELECTION: handleCompositionSelection(event); break;
+ case SWT.COMPOSITION_CHANGED: handleCompositionChanged(event); break;
+ case SWT.COMPOSITION_OFFSET: handleCompositionOffset(event); break;
+ }
+ }
+ });
+ if (verticalBar != null) {
+ verticalBar.addListener(SWT.Selection, new Listener() {
+ public void handleEvent(Event event) {
+ handleVerticalScroll(event);
+ }
+ });
+ }
+ if (horizontalBar != null) {
+ horizontalBar.addListener(SWT.Selection, new Listener() {
+ public void handleEvent(Event event) {
+ handleHorizontalScroll(event);
+ }
+ });
+ }
+}
+void internalRedrawRange(int start, int length) {
+ if (length <= 0) return;
+ int end = start + length;
+ int startLine = content.getLineAtOffset(start);
+ int endLine = content.getLineAtOffset(end);
+ int partialBottomIndex = getPartialBottomIndex();
+ int partialTopIndex = getPartialTopIndex();
+ if (startLine > partialBottomIndex || endLine < partialTopIndex) {
+ return;
+ }
+ if (partialTopIndex > startLine) {
+ startLine = partialTopIndex;
+ start = 0;
+ } else {
+ start -= content.getOffsetAtLine(startLine);
+ }
+ if (partialBottomIndex < endLine) {
+ endLine = partialBottomIndex + 1;
+ end = 0;
+ } else {
+ end -= content.getOffsetAtLine(endLine);
+ }
+
+ TextLayout layout = renderer.getTextLayout(startLine);
+ int lineX = leftMargin - horizontalScrollOffset, startLineY = getLinePixel(startLine);
+ int[] offsets = layout.getLineOffsets();
+ int startIndex = layout.getLineIndex(Math.min(start, layout.getText().length()));
+
+ /* Redraw end of line before start line if wrapped and start offset is first char */
+ if (wordWrap && startIndex > 0 && offsets[startIndex] == start) {
+ Rectangle rect = layout.getLineBounds(startIndex - 1);
+ rect.x = rect.width;
+ rect.width = clientAreaWidth - rightMargin - rect.x;
+ rect.x += lineX;
+ rect.y += startLineY;
+ super.redraw(rect.x, rect.y, rect.width, rect.height, false);
+ }
+
+ if (startLine == endLine) {
+ int endIndex = layout.getLineIndex(Math.min(end, layout.getText().length()));
+ if (startIndex == endIndex) {
+ /* Redraw rect between start and end offset if start and end offsets are in same wrapped line */
+ Rectangle rect = layout.getBounds(start, end - 1);
+ rect.x += lineX;
+ rect.y += startLineY;
+ super.redraw(rect.x, rect.y, rect.width, rect.height, false);
+ renderer.disposeTextLayout(layout);
+ return;
+ }
+ }
+
+ /* Redraw start line from the start offset to the end of client area */
+ Rectangle startRect = layout.getBounds(start, offsets[startIndex + 1] - 1);
+ if (startRect.height == 0) {
+ Rectangle bounds = layout.getLineBounds(startIndex);
+ startRect.x = bounds.width;
+ startRect.y = bounds.y;
+ startRect.height = bounds.height;
+ }
+ startRect.x += lineX;
+ startRect.y += startLineY;
+ startRect.width = clientAreaWidth - rightMargin - startRect.x;
+ super.redraw(startRect.x, startRect.y, startRect.width, startRect.height, false);
+
+ /* Redraw end line from the beginning of the line to the end offset */
+ if (startLine != endLine) {
+ renderer.disposeTextLayout(layout);
+ layout = renderer.getTextLayout(endLine);
+ offsets = layout.getLineOffsets();
+ }
+ int endIndex = layout.getLineIndex(Math.min(end, layout.getText().length()));
+ Rectangle endRect = layout.getBounds(offsets[endIndex], end - 1);
+ if (endRect.height == 0) {
+ Rectangle bounds = layout.getLineBounds(endIndex);
+ endRect.y = bounds.y;
+ endRect.height = bounds.height;
+ }
+ endRect.x += lineX;
+ endRect.y += getLinePixel(endLine);
+ super.redraw(endRect.x, endRect.y, endRect.width, endRect.height, false);
+ renderer.disposeTextLayout(layout);
+
+ /* Redraw all lines in between start and end line */
+ int y = startRect.y + startRect.height;
+ if (endRect.y > y) {
+ super.redraw(leftMargin, y, clientAreaWidth - rightMargin - leftMargin, endRect.y - y, false);
+ }
+}
+void handleCompositionOffset (Event event) {
+ int[] trailing = new int [1];
+ event.index = getOffsetAtPoint(event.x, event.y, trailing, true);
+ event.count = trailing[0];
+}
+void handleCompositionSelection (Event event) {
+ event.start = selection.x;
+ event.end = selection.y;
+ event.text = getSelectionText();
+}
+void handleCompositionChanged(Event event) {
+ String text = event.text;
+ int start = event.start;
+ int end = event.end;
+ int length = text.length();
+ if (length == ime.getCommitCount()) {
+ content.replaceTextRange(start, end - start, "");
+ setCaretOffset(ime.getCompositionOffset(), SWT.DEFAULT);
+ caretWidth = 0;
+ caretDirection = SWT.NULL;
+ } else {
+ content.replaceTextRange(start, end - start, text);
+ setCaretOffset(ime.getCaretOffset(), SWT.DEFAULT);
+ if (ime.getWideCaret()) {
+ start = ime.getCompositionOffset();
+ int lineIndex = getCaretLine();
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ caretWidth = layout.getBounds(start - lineOffset, start + length - 1 - lineOffset).width;
+ renderer.disposeTextLayout(layout);
+ }
+ }
+ showCaret();
+}
+/**
+ * Frees resources.
+ */
+void handleDispose(Event event) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ clipboard.dispose();
+ if (renderer != null) {
+ renderer.dispose();
+ renderer = null;
+ }
+ if (content != null) {
+ content.removeTextChangeListener(textChangeListener);
+ content = null;
+ }
+ if (defaultCaret != null) {
+ defaultCaret.dispose();
+ defaultCaret = null;
+ }
+ if (leftCaretBitmap != null) {
+ leftCaretBitmap.dispose();
+ leftCaretBitmap = null;
+ }
+ if (rightCaretBitmap != null) {
+ rightCaretBitmap.dispose();
+ rightCaretBitmap = null;
+ }
+ if (isBidiCaret()) {
+ BidiUtil.removeLanguageListener(this);
+ }
+ selectionBackground = null;
+ selectionForeground = null;
+ marginColor = null;
+ textChangeListener = null;
+ selection = null;
+ doubleClickSelection = null;
+ keyActionMap = null;
+ background = null;
+ foreground = null;
+ clipboard = null;
+}
+/**
+ * Scrolls the widget horizontally.
+ */
+void handleHorizontalScroll(Event event) {
+ int scrollPixel = getHorizontalBar().getSelection() - horizontalScrollOffset;
+ scrollHorizontal(scrollPixel, false);
+}
+/**
+ * If an action has been registered for the key stroke execute the action.
+ * Otherwise, if a character has been entered treat it as new content.
+ *
+ * @param event keyboard event
+ */
+void handleKey(Event event) {
+ int action;
+ caretAlignment = PREVIOUS_OFFSET_TRAILING;
+ if (event.keyCode != 0) {
+ // special key pressed (e.g., F1)
+ action = getKeyBinding(event.keyCode | event.stateMask);
+ } else {
+ // character key pressed
+ action = getKeyBinding(event.character | event.stateMask);
+ if (action == SWT.NULL) {
+ // see if we have a control character
+ if ((event.stateMask & SWT.CTRL) != 0 && event.character <= 31) {
+ // get the character from the CTRL+char sequence, the control
+ // key subtracts 64 from the value of the key that it modifies
+ int c = event.character + 64;
+ action = getKeyBinding(c | event.stateMask);
+ }
+ }
+ }
+ if (action == SWT.NULL) {
+ boolean ignore = false;
+
+ if (IS_MAC) {
+ // Ignore accelerator key combinations (we do not want to
+ // insert a character in the text in this instance). Do not
+ // ignore COMMAND+ALT combinations since that key sequence
+ // produces characters on the mac.
+ ignore = (event.stateMask ^ SWT.COMMAND) == 0 ||
+ (event.stateMask ^ (SWT.COMMAND | SWT.SHIFT)) == 0;
+ } else if (IS_MOTIF) {
+ // Ignore accelerator key combinations (we do not want to
+ // insert a character in the text in this instance). Do not
+ // ignore ALT combinations since this key sequence
+ // produces characters on motif.
+ ignore = (event.stateMask ^ SWT.CTRL) == 0 ||
+ (event.stateMask ^ (SWT.CTRL | SWT.SHIFT)) == 0;
+ } else {
+ // Ignore accelerator key combinations (we do not want to
+ // insert a character in the text in this instance). Don't
+ // ignore CTRL+ALT combinations since that is the Alt Gr
+ // key on some keyboards. See bug 20953.
+ ignore = (event.stateMask ^ SWT.ALT) == 0 ||
+ (event.stateMask ^ SWT.CTRL) == 0 ||
+ (event.stateMask ^ (SWT.ALT | SWT.SHIFT)) == 0 ||
+ (event.stateMask ^ (SWT.CTRL | SWT.SHIFT)) == 0;
+ }
+ // -ignore anything below SPACE except for line delimiter keys and tab.
+ // -ignore DEL
+ if (!ignore && event.character > 31 && event.character != SWT.DEL ||
+ event.character == SWT.CR || event.character == SWT.LF ||
+ event.character == TAB) {
+ doContent(event.character);
+ update();
+ }
+ } else {
+ invokeAction(action);
+ }
+}
+/**
+ * If a VerifyKey listener exists, verify that the key that was entered
+ * should be processed.
+ *
+ * @param event keyboard event
+ */
+void handleKeyDown(Event event) {
+ if (clipboardSelection == null) {
+ clipboardSelection = new Point(selection.x, selection.y);
+ }
+
+ Event verifyEvent = new Event();
+ verifyEvent.character = event.character;
+ verifyEvent.keyCode = event.keyCode;
+ verifyEvent.stateMask = event.stateMask;
+ verifyEvent.doit = true;
+ notifyListeners(VerifyKey, verifyEvent);
+ if (verifyEvent.doit) {
+ handleKey(event);
+ }
+}
+/**
+ * Update the Selection Clipboard.
+ *
+ * @param event keyboard event
+ */
+void handleKeyUp(Event event) {
+ if (clipboardSelection != null) {
+ if (clipboardSelection.x != selection.x || clipboardSelection.y != selection.y) {
+ copySelection(DND.SELECTION_CLIPBOARD);
+ }
+ }
+ clipboardSelection = null;
+}
+/**
+ * Updates the caret location and selection if mouse button 1 has been
+ * pressed.
+ */
+void handleMouseDown(Event event) {
+ //force focus (object support)
+ forceFocus();
+
+ //drag detect
+ if (dragDetect && checkDragDetect(event)) return;
+
+ //paste clipboard selection
+ if (event.button == 2) {
+ String text = (String)getClipboardContent(DND.SELECTION_CLIPBOARD);
+ if (text != null && text.length() > 0) {
+ // position cursor
+ doMouseLocationChange(event.x, event.y, false);
+ // insert text
+ Event e = new Event();
+ e.start = selection.x;
+ e.end = selection.y;
+ e.text = getModelDelimitedText(text);
+ sendKeyEvent(e);
+ }
+ }
+
+ //set selection
+ if ((event.button != 1) || (IS_MAC && (event.stateMask & SWT.MOD4) != 0)) {
+ return;
+ }
+ clickCount = event.count;
+ if (clickCount == 1) {
+ boolean select = (event.stateMask & SWT.MOD2) != 0;
+ doMouseLocationChange(event.x, event.y, select);
+ } else {
+ if (doubleClickEnabled) {
+ boolean wordSelect = (clickCount & 1) == 0;
+ int offset = getOffsetAtPoint(event.x, event.y, null);
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ if (wordSelect) {
+ int min = blockSelection ? lineOffset : 0;
+ int max = blockSelection ? lineOffset + content.getLine(lineIndex).length() : content.getCharCount();
+ int start = Math.max(min, getWordPrevious(offset, SWT.MOVEMENT_WORD_START));
+ int end = Math.min(max, getWordNext(start, SWT.MOVEMENT_WORD_END));
+ setSelection(start, end - start, false, true);
+ sendSelectionEvent();
+ } else {
+ if (blockSelection) {
+ setBlockSelectionLocation(leftMargin, event.y, clientAreaWidth - rightMargin, event.y, true);
+ } else {
+ int lineEnd = content.getCharCount();
+ if (lineIndex + 1 < content.getLineCount()) {
+ lineEnd = content.getOffsetAtLine(lineIndex + 1);
+ }
+ setSelection(lineOffset, lineEnd - lineOffset, false, false);
+ sendSelectionEvent();
+ }
+ }
+ doubleClickSelection = new Point(selection.x, selection.y);
+ showCaret();
+ }
+ }
+}
+/**
+ * Updates the caret location and selection if mouse button 1 is pressed
+ * during the mouse move.
+ */
+void handleMouseMove(Event event) {
+ if (clickCount > 0) {
+ update();
+ doAutoScroll(event);
+ doMouseLocationChange(event.x, event.y, true);
+ }
+ if (renderer.hasLinks) {
+ doMouseLinkCursor(event.x, event.y);
+ }
+}
+/**
+ * Autoscrolling ends when the mouse button is released.
+ */
+void handleMouseUp(Event event) {
+ clickCount = 0;
+ endAutoScroll();
+ if (event.button == 1) {
+ copySelection(DND.SELECTION_CLIPBOARD);
+ }
+}
+/**
+ * Renders the invalidated area specified in the paint event.
+ *
+ * @param event paint event
+ */
+void handlePaint(Event event) {
+ if (event.width == 0 || event.height == 0) return;
+ if (clientAreaWidth == 0 || clientAreaHeight == 0) return;
+
+ int startLine = getLineIndex(event.y);
+ int y = getLinePixel(startLine);
+ int endY = event.y + event.height;
+ GC gc = event.gc;
+ Color background = getBackground();
+ Color foreground = getForeground();
+ if (endY > 0) {
+ int lineCount = isSingleLine() ? 1 : content.getLineCount();
+ int x = leftMargin - horizontalScrollOffset;
+ for (int i = startLine; y < endY && i < lineCount; i++) {
+ y += renderer.drawLine(i, x, y, gc, background, foreground);
+ }
+ if (y < endY) {
+ gc.setBackground(background);
+ drawBackground(gc, 0, y, clientAreaWidth, endY - y);
+ }
+ }
+ if (blockSelection && blockXLocation != -1) {
+ gc.setBackground(getSelectionBackground());
+ Rectangle rect = getBlockSelectionRectangle();
+ gc.drawRectangle(rect.x, rect.y, Math.max(1, rect.width - 1), Math.max(1, rect.height - 1));
+ gc.setAdvanced(true);
+ if (gc.getAdvanced()) {
+ gc.setAlpha(100);
+ gc.fillRectangle(rect);
+ gc.setAdvanced(false);
+ }
+ }
+
+ // fill the margin background
+ gc.setBackground(marginColor != null ? marginColor : background);
+ if (topMargin > 0) {
+ drawBackground(gc, 0, 0, clientAreaWidth, topMargin);
+ }
+ if (bottomMargin > 0) {
+ drawBackground(gc, 0, clientAreaHeight - bottomMargin, clientAreaWidth, bottomMargin);
+ }
+ if (leftMargin - alignmentMargin > 0) {
+ drawBackground(gc, 0, 0, leftMargin - alignmentMargin, clientAreaHeight);
+ }
+ if (rightMargin > 0) {
+ drawBackground(gc, clientAreaWidth - rightMargin, 0, rightMargin, clientAreaHeight);
+ }
+}
+/**
+ * Recalculates the scroll bars. Rewraps all lines when in word
+ * wrap mode.
+ *
+ * @param event resize event
+ */
+void handleResize(Event event) {
+ int oldHeight = clientAreaHeight;
+ int oldWidth = clientAreaWidth;
+ Rectangle clientArea = getClientArea();
+ clientAreaHeight = clientArea.height;
+ clientAreaWidth = clientArea.width;
+ /* Redraw the old or new right/bottom margin if needed */
+ if (oldWidth != clientAreaWidth) {
+ if (rightMargin > 0) {
+ int x = (oldWidth < clientAreaWidth ? oldWidth : clientAreaWidth) - rightMargin;
+ super.redraw(x, 0, rightMargin, oldHeight, false);
+ }
+ }
+ if (oldHeight != clientAreaHeight) {
+ if (bottomMargin > 0) {
+ int y = (oldHeight < clientAreaHeight ? oldHeight : clientAreaHeight) - bottomMargin;
+ super.redraw(0, y, oldWidth, bottomMargin, false);
+ }
+ }
+ if (wordWrap) {
+ if (oldWidth != clientAreaWidth) {
+ renderer.reset(0, content.getLineCount());
+ verticalScrollOffset = -1;
+ renderer.calculateIdle();
+ super.redraw();
+ }
+ if (oldHeight != clientAreaHeight) {
+ if (oldHeight == 0) topIndexY = 0;
+ setScrollBars(true);
+ }
+ setCaretLocation();
+ } else {
+ renderer.calculateClientArea();
+ setScrollBars(true);
+ claimRightFreeSpace();
+ // StyledText allows any value for horizontalScrollOffset when clientArea is zero
+ // in setHorizontalPixel() and setHorisontalOffset(). Fixes bug 168429.
+ if (clientAreaWidth != 0) {
+ ScrollBar horizontalBar = getHorizontalBar();
+ if (horizontalBar != null && horizontalBar.getVisible()) {
+ if (horizontalScrollOffset != horizontalBar.getSelection()) {
+ horizontalBar.setSelection(horizontalScrollOffset);
+ horizontalScrollOffset = horizontalBar.getSelection();
+ }
+ }
+ }
+ }
+ updateCaretVisibility();
+ claimBottomFreeSpace();
+ setAlignment();
+ //TODO FIX TOP INDEX DURING RESIZE
+// if (oldHeight != clientAreaHeight || wordWrap) {
+// calculateTopIndex(0);
+// }
+}
+/**
+ * Updates the caret position and selection and the scroll bars to reflect
+ * the content change.
+ */
+void handleTextChanged(TextChangedEvent event) {
+ int offset = ime.getCompositionOffset();
+ if (offset != -1 && lastTextChangeStart < offset) {
+ ime.setCompositionOffset(offset + lastTextChangeNewCharCount - lastTextChangeReplaceCharCount);
+ }
+ int firstLine = content.getLineAtOffset(lastTextChangeStart);
+ resetCache(firstLine, 0);
+ if (!isFixedLineHeight() && topIndex > firstLine) {
+ topIndex = firstLine;
+ topIndexY = 0;
+ super.redraw();
+ } else {
+ int lastLine = firstLine + lastTextChangeNewLineCount;
+ int firstLineTop = getLinePixel(firstLine);
+ int newLastLineBottom = getLinePixel(lastLine + 1);
+ if (lastLineBottom != newLastLineBottom) {
+ super.redraw();
+ } else {
+ super.redraw(0, firstLineTop, clientAreaWidth, newLastLineBottom - firstLineTop, false);
+ redrawLinesBullet(renderer.redrawLines);
+ }
+ }
+ renderer.redrawLines = null;
+ // update selection/caret location after styles have been changed.
+ // otherwise any text measuring could be incorrect
+ //
+ // also, this needs to be done after all scrolling. Otherwise,
+ // selection redraw would be flushed during scroll which is wrong.
+ // in some cases new text would be drawn in scroll source area even
+ // though the intent is to scroll it.
+ if (!(blockSelection && blockXLocation != -1)) {
+ updateSelection(lastTextChangeStart, lastTextChangeReplaceCharCount, lastTextChangeNewCharCount);
+ }
+ if (lastTextChangeReplaceLineCount > 0 || wordWrap) {
+ claimBottomFreeSpace();
+ }
+ if (lastTextChangeReplaceCharCount > 0) {
+ claimRightFreeSpace();
+ }
+
+ sendAccessibleTextChanged(lastTextChangeStart, lastTextChangeNewCharCount, lastTextChangeReplaceCharCount);
+ lastCharCount += lastTextChangeNewCharCount;
+ lastCharCount -= lastTextChangeReplaceCharCount;
+ setAlignment();
+}
+/**
+ * Updates the screen to reflect a pending content change.
+ *
+ * @param event .start the start offset of the change
+ * @param event .newText text that is going to be inserted or empty String
+ * if no text will be inserted
+ * @param event .replaceCharCount length of text that is going to be replaced
+ * @param event .newCharCount length of text that is going to be inserted
+ * @param event .replaceLineCount number of lines that are going to be replaced
+ * @param event .newLineCount number of new lines that are going to be inserted
+ */
+void handleTextChanging(TextChangingEvent event) {
+ if (event.replaceCharCount < 0) {
+ event.start += event.replaceCharCount;
+ event.replaceCharCount *= -1;
+ }
+ lastTextChangeStart = event.start;
+ lastTextChangeNewLineCount = event.newLineCount;
+ lastTextChangeNewCharCount = event.newCharCount;
+ lastTextChangeReplaceLineCount = event.replaceLineCount;
+ lastTextChangeReplaceCharCount = event.replaceCharCount;
+ int lineIndex = content.getLineAtOffset(event.start);
+ int srcY = getLinePixel(lineIndex + event.replaceLineCount + 1);
+ int destY = getLinePixel(lineIndex + 1) + event.newLineCount * renderer.getLineHeight();
+ lastLineBottom = destY;
+ if (srcY < 0 && destY < 0) {
+ lastLineBottom += srcY - destY;
+ verticalScrollOffset += destY - srcY;
+ calculateTopIndex(destY - srcY);
+ setScrollBars(true);
+ } else {
+ scrollText(srcY, destY);
+ }
+
+ renderer.textChanging(event);
+
+ // Update the caret offset if it is greater than the length of the content.
+ // This is necessary since style range API may be called between the
+ // handleTextChanging and handleTextChanged events and this API sets the
+ // caretOffset.
+ int newEndOfText = content.getCharCount() - event.replaceCharCount + event.newCharCount;
+ if (caretOffset > newEndOfText) setCaretOffset(newEndOfText, SWT.DEFAULT);
+}
+/**
+ * Called when the widget content is set programmatically, overwriting
+ * the old content. Resets the caret position, selection and scroll offsets.
+ * Recalculates the content width and scroll bars. Redraws the widget.
+ *
+ * @param event text change event.
+ */
+void handleTextSet(TextChangedEvent event) {
+ reset();
+ int newCharCount = getCharCount();
+ sendAccessibleTextChanged(0, newCharCount, lastCharCount);
+ lastCharCount = newCharCount;
+ setAlignment();
+}
+/**
+ * Called when a traversal key is pressed.
+ * Allow tab next traversal to occur when the widget is in single
+ * line mode or in multi line and non-editable mode .
+ * When in editable multi line mode we want to prevent the tab
+ * traversal and receive the tab key event instead.
+ *
+ * @param event the event
+ */
+void handleTraverse(Event event) {
+ switch (event.detail) {
+ case SWT.TRAVERSE_ESCAPE:
+ case SWT.TRAVERSE_PAGE_NEXT:
+ case SWT.TRAVERSE_PAGE_PREVIOUS:
+ event.doit = true;
+ break;
+ case SWT.TRAVERSE_RETURN:
+ case SWT.TRAVERSE_TAB_NEXT:
+ case SWT.TRAVERSE_TAB_PREVIOUS:
+ if ((getStyle() & SWT.SINGLE) != 0) {
+ event.doit = true;
+ } else {
+ if (!editable || (event.stateMask & SWT.MODIFIER_MASK) != 0) {
+ event.doit = true;
+ }
+ }
+ break;
+ }
+}
+/**
+ * Scrolls the widget vertically.
+ */
+void handleVerticalScroll(Event event) {
+ int scrollPixel = getVerticalBar().getSelection() - getVerticalScrollOffset();
+ scrollVertical(scrollPixel, false);
+}
+/**
+ * Add accessibility support for the widget.
+ */
+void initializeAccessible() {
+ final Accessible accessible = getAccessible();
+ accessible.addAccessibleListener(new AccessibleAdapter() {
+ public void getName (AccessibleEvent e) {
+ String name = null;
+ Label label = getAssociatedLabel ();
+ if (label != null) {
+ name = stripMnemonic (label.getText());
+ }
+ e.result = name;
+ }
+ public void getHelp(AccessibleEvent e) {
+ e.result = getToolTipText();
+ }
+ public void getKeyboardShortcut(AccessibleEvent e) {
+ String shortcut = null;
+ Label label = getAssociatedLabel ();
+ if (label != null) {
+ String text = label.getText ();
+ if (text != null) {
+ char mnemonic = _findMnemonic (text);
+ if (mnemonic != '\0') {
+ shortcut = "Alt+"+mnemonic; //$NON-NLS-1$
+ }
+ }
+ }
+ e.result = shortcut;
+ }
+ });
+ accessible.addAccessibleTextListener(new AccessibleTextAdapter() {
+ public void getCaretOffset(AccessibleTextEvent e) {
+ e.offset = StyledText.this.getCaretOffset();
+ }
+ public void getSelectionRange(AccessibleTextEvent e) {
+ Point selection = StyledText.this.getSelectionRange();
+ e.offset = selection.x;
+ e.length = selection.y;
+ }
+ });
+ accessible.addAccessibleControlListener(new AccessibleControlAdapter() {
+ public void getRole(AccessibleControlEvent e) {
+ e.detail = ACC.ROLE_TEXT;
+ }
+ public void getState(AccessibleControlEvent e) {
+ int state = 0;
+ if (isEnabled()) state |= ACC.STATE_FOCUSABLE;
+ if (isFocusControl()) state |= ACC.STATE_FOCUSED;
+ if (!isVisible()) state |= ACC.STATE_INVISIBLE;
+ if (!getEditable()) state |= ACC.STATE_READONLY;
+ e.detail = state;
+ }
+ public void getValue(AccessibleControlEvent e) {
+ e.result = StyledText.this.getText();
+ }
+ });
+ addListener(SWT.FocusIn, new Listener() {
+ public void handleEvent(Event event) {
+ accessible.setFocus(ACC.CHILDID_SELF);
+ }
+ });
+}
+/*
+ * Return the Label immediately preceding the receiver in the z-order,
+ * or null if none.
+ */
+Label getAssociatedLabel () {
+ Control[] siblings = getParent ().getChildren ();
+ for (int i = 0; i < siblings.length; i++) {
+ if (siblings [i] == StyledText.this) {
+ if (i > 0 && siblings [i-1] instanceof Label) {
+ return (Label) siblings [i-1];
+ }
+ }
+ }
+ return null;
+}
+String stripMnemonic (String string) {
+ int index = 0;
+ int length = string.length ();
+ do {
+ while ((index < length) && (string.charAt (index) != '&')) index++;
+ if (++index >= length) return string;
+ if (string.charAt (index) != '&') {
+ return string.substring(0, index-1) + string.substring(index, length);
+ }
+ index++;
+ } while (index < length);
+ return string;
+}
+/*
+ * Return the lowercase of the first non-'&' character following
+ * an '&' character in the given string. If there are no '&'
+ * characters in the given string, return '\0'.
+ */
+char _findMnemonic (String string) {
+ if (string == null) return '\0';
+ int index = 0;
+ int length = string.length ();
+ do {
+ while (index < length && string.charAt (index) != '&') index++;
+ if (++index >= length) return '\0';
+ if (string.charAt (index) != '&') return Character.toLowerCase (string.charAt (index));
+ index++;
+ } while (index < length);
+ return '\0';
+}
+/**
+ * Executes the action.
+ *
+ * @param action one of the actions defined in ST.java
+ */
+public void invokeAction(int action) {
+ checkWidget();
+ if (blockSelection && invokeBlockAction(action)) return;
+ updateCaretDirection = true;
+ switch (action) {
+ // Navigation
+ case ST.LINE_UP:
+ doLineUp(false);
+ clearSelection(true);
+ break;
+ case ST.LINE_DOWN:
+ doLineDown(false);
+ clearSelection(true);
+ break;
+ case ST.LINE_START:
+ doLineStart();
+ clearSelection(true);
+ break;
+ case ST.LINE_END:
+ doLineEnd();
+ clearSelection(true);
+ break;
+ case ST.COLUMN_PREVIOUS:
+ doCursorPrevious();
+ clearSelection(true);
+ break;
+ case ST.COLUMN_NEXT:
+ doCursorNext();
+ clearSelection(true);
+ break;
+ case ST.PAGE_UP:
+ doPageUp(false, -1);
+ clearSelection(true);
+ break;
+ case ST.PAGE_DOWN:
+ doPageDown(false, -1);
+ clearSelection(true);
+ break;
+ case ST.WORD_PREVIOUS:
+ doWordPrevious();
+ clearSelection(true);
+ break;
+ case ST.WORD_NEXT:
+ doWordNext();
+ clearSelection(true);
+ break;
+ case ST.TEXT_START:
+ doContentStart();
+ clearSelection(true);
+ break;
+ case ST.TEXT_END:
+ doContentEnd();
+ clearSelection(true);
+ break;
+ case ST.WINDOW_START:
+ doPageStart();
+ clearSelection(true);
+ break;
+ case ST.WINDOW_END:
+ doPageEnd();
+ clearSelection(true);
+ break;
+ // Selection
+ case ST.SELECT_LINE_UP:
+ doSelectionLineUp();
+ break;
+ case ST.SELECT_ALL:
+ selectAll();
+ break;
+ case ST.SELECT_LINE_DOWN:
+ doSelectionLineDown();
+ break;
+ case ST.SELECT_LINE_START:
+ doLineStart();
+ doSelection(ST.COLUMN_PREVIOUS);
+ break;
+ case ST.SELECT_LINE_END:
+ doLineEnd();
+ doSelection(ST.COLUMN_NEXT);
+ break;
+ case ST.SELECT_COLUMN_PREVIOUS:
+ doSelectionCursorPrevious();
+ doSelection(ST.COLUMN_PREVIOUS);
+ break;
+ case ST.SELECT_COLUMN_NEXT:
+ doSelectionCursorNext();
+ doSelection(ST.COLUMN_NEXT);
+ break;
+ case ST.SELECT_PAGE_UP:
+ doSelectionPageUp(-1);
+ break;
+ case ST.SELECT_PAGE_DOWN:
+ doSelectionPageDown(-1);
+ break;
+ case ST.SELECT_WORD_PREVIOUS:
+ doSelectionWordPrevious();
+ doSelection(ST.COLUMN_PREVIOUS);
+ break;
+ case ST.SELECT_WORD_NEXT:
+ doSelectionWordNext();
+ doSelection(ST.COLUMN_NEXT);
+ break;
+ case ST.SELECT_TEXT_START:
+ doContentStart();
+ doSelection(ST.COLUMN_PREVIOUS);
+ break;
+ case ST.SELECT_TEXT_END:
+ doContentEnd();
+ doSelection(ST.COLUMN_NEXT);
+ break;
+ case ST.SELECT_WINDOW_START:
+ doPageStart();
+ doSelection(ST.COLUMN_PREVIOUS);
+ break;
+ case ST.SELECT_WINDOW_END:
+ doPageEnd();
+ doSelection(ST.COLUMN_NEXT);
+ break;
+ // Modification
+ case ST.CUT:
+ cut();
+ break;
+ case ST.COPY:
+ copy();
+ break;
+ case ST.PASTE:
+ paste();
+ break;
+ case ST.DELETE_PREVIOUS:
+ doBackspace();
+ break;
+ case ST.DELETE_NEXT:
+ doDelete();
+ break;
+ case ST.DELETE_WORD_PREVIOUS:
+ doDeleteWordPrevious();
+ break;
+ case ST.DELETE_WORD_NEXT:
+ doDeleteWordNext();
+ break;
+ // Miscellaneous
+ case ST.TOGGLE_OVERWRITE:
+ overwrite = !overwrite; // toggle insert/overwrite mode
+ break;
+ case ST.TOGGLE_BLOCKSELECTION:
+ setBlockSelection(!blockSelection);
+ break;
+ }
+}
+/**
+* Returns true if an action should not be performed when block
+* selection in active
+*/
+boolean invokeBlockAction(int action) {
+ switch (action) {
+ // Navigation
+ case ST.LINE_UP:
+ case ST.LINE_DOWN:
+ case ST.LINE_START:
+ case ST.LINE_END:
+ case ST.COLUMN_PREVIOUS:
+ case ST.COLUMN_NEXT:
+ case ST.PAGE_UP:
+ case ST.PAGE_DOWN:
+ case ST.WORD_PREVIOUS:
+ case ST.WORD_NEXT:
+ case ST.TEXT_START:
+ case ST.TEXT_END:
+ case ST.WINDOW_START:
+ case ST.WINDOW_END:
+ clearBlockSelection(false, false);
+ return false;
+ // Selection
+ case ST.SELECT_LINE_UP:
+ doBlockLineVertical(true);
+ return true;
+ case ST.SELECT_LINE_DOWN:
+ doBlockLineVertical(false);
+ return true;
+ case ST.SELECT_LINE_START:
+ doBlockLineHorizontal(false);
+ return true;
+ case ST.SELECT_LINE_END:
+ doBlockLineHorizontal(true);
+ return false;
+ case ST.SELECT_COLUMN_PREVIOUS:
+ doBlockColumn(false);
+ return true;
+ case ST.SELECT_COLUMN_NEXT:
+ doBlockColumn(true);
+ return true;
+ case ST.SELECT_WORD_PREVIOUS:
+ doBlockWord(false);
+ return true;
+ case ST.SELECT_WORD_NEXT:
+ doBlockWord(true);
+ return true;
+ case ST.SELECT_ALL:
+ return false;
+ case ST.SELECT_PAGE_UP:
+ case ST.SELECT_PAGE_DOWN:
+ case ST.SELECT_TEXT_START:
+ case ST.SELECT_TEXT_END:
+ case ST.SELECT_WINDOW_START:
+ case ST.SELECT_WINDOW_END:
+ //blocked actions
+ return true;
+ // Modification
+ case ST.CUT:
+ case ST.COPY:
+ case ST.PASTE:
+ return false;
+ case ST.DELETE_PREVIOUS:
+ case ST.DELETE_NEXT:
+ if (blockXLocation != -1) {
+ insertBlockSelectionText((char)0, action);
+ return true;
+ }
+ return false;
+ case ST.DELETE_WORD_PREVIOUS:
+ case ST.DELETE_WORD_NEXT:
+ //blocked actions
+ return blockXLocation != -1;
+ }
+ return false;
+}
+/**
+ * Temporary until SWT provides this
+ */
+boolean isBidi() {
+ return IS_GTK || IS_MAC || BidiUtil.isBidiPlatform() || isMirrored;
+}
+boolean isBidiCaret() {
+ return BidiUtil.isBidiPlatform();
+}
+boolean isFixedLineHeight() {
+ return fixedLineHeight;
+}
+/**
+ * Returns whether the given offset is inside a multi byte line delimiter.
+ * Example:
+ * "Line1\r\n" isLineDelimiter(5) == false but isLineDelimiter(6) == true
+ *
+ * @return true if the given offset is inside a multi byte line delimiter.
+ * false if the given offset is before or after a line delimiter.
+ */
+boolean isLineDelimiter(int offset) {
+ int line = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(line);
+ int offsetInLine = offset - lineOffset;
+ // offsetInLine will be greater than line length if the line
+ // delimiter is longer than one character and the offset is set
+ // in between parts of the line delimiter.
+ return offsetInLine > content.getLine(line).length();
+}
+/**
+ * Returns whether the widget is mirrored (right oriented/right to left
+ * writing order).
+ *
+ * @return isMirrored true=the widget is right oriented, false=the widget
+ * is left oriented
+ */
+boolean isMirrored() {
+ return isMirrored;
+}
+/**
+ * Returns whether the widget can have only one line.
+ *
+ * @return true if widget can have only one line, false if widget can have
+ * multiple lines
+ */
+boolean isSingleLine() {
+ return (getStyle() & SWT.SINGLE) != 0;
+}
+/**
+ * Sends the specified verify event, replace/insert text as defined by
+ * the event and send a modify event.
+ *
+ * @param event the text change event.
+ * <ul>
+ * <li>event.start - the replace start offset</li>
+ * <li>event.end - the replace end offset</li>
+ * <li>event.text - the new text</li>
+ * </ul>
+ * @param updateCaret whether or not he caret should be set behind
+ * the new text
+ */
+void modifyContent(Event event, boolean updateCaret) {
+ event.doit = true;
+ notifyListeners(SWT.Verify, event);
+ if (event.doit) {
+ StyledTextEvent styledTextEvent = null;
+ int replacedLength = event.end - event.start;
+ if (isListening(ExtendedModify)) {
+ styledTextEvent = new StyledTextEvent(content);
+ styledTextEvent.start = event.start;
+ styledTextEvent.end = event.start + event.text.length();
+ styledTextEvent.text = content.getTextRange(event.start, replacedLength);
+ }
+ if (updateCaret) {
+ //Fix advancing flag for delete/backspace key on direction boundary
+ if (event.text.length() == 0) {
+ int lineIndex = content.getLineAtOffset(event.start);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ int levelStart = layout.getLevel(event.start - lineOffset);
+ int lineIndexEnd = content.getLineAtOffset(event.end);
+ if (lineIndex != lineIndexEnd) {
+ renderer.disposeTextLayout(layout);
+ lineOffset = content.getOffsetAtLine(lineIndexEnd);
+ layout = renderer.getTextLayout(lineIndexEnd);
+ }
+ int levelEnd = layout.getLevel(event.end - lineOffset);
+ renderer.disposeTextLayout(layout);
+ if (levelStart != levelEnd) {
+ caretAlignment = PREVIOUS_OFFSET_TRAILING;
+ } else {
+ caretAlignment = OFFSET_LEADING;
+ }
+ }
+ }
+ content.replaceTextRange(event.start, replacedLength, event.text);
+ // set the caret position prior to sending the modify event.
+ // fixes 1GBB8NJ
+ if (updateCaret && !(blockSelection && blockXLocation != -1)) {
+ // always update the caret location. fixes 1G8FODP
+ setSelection(event.start + event.text.length(), 0, true, false);
+ showCaret();
+ }
+ notifyListeners(SWT.Modify, event);
+ if (isListening(ExtendedModify)) {
+ notifyListeners(ExtendedModify, styledTextEvent);
+ }
+ }
+}
+void paintObject(GC gc, int x, int y, int ascent, int descent, StyleRange style, Bullet bullet, int bulletIndex) {
+ if (isListening(PaintObject)) {
+ StyledTextEvent event = new StyledTextEvent (content) ;
+ event.gc = gc;
+ event.x = x;
+ event.y = y;
+ event.ascent = ascent;
+ event.descent = descent;
+ event.style = style;
+ event.bullet = bullet;
+ event.bulletIndex = bulletIndex;
+ notifyListeners(PaintObject, event);
+ }
+}
+/**
+ * Replaces the selection with the text on the <code>DND.CLIPBOARD</code>
+ * clipboard or, if there is no selection, inserts the text at the current
+ * caret offset. If the widget has the SWT.SINGLE style and the
+ * clipboard text contains more than one line, only the first line without
+ * line delimiters is inserted in the widget.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void paste(){
+ checkWidget();
+ String text = (String) getClipboardContent(DND.CLIPBOARD);
+ if (text != null && text.length() > 0) {
+ if (blockSelection) {
+ boolean fillWithSpaces = isFixedLineHeight() && renderer.fixedPitch;
+ int offset = insertBlockSelectionText(text, fillWithSpaces);
+ setCaretOffset(offset, SWT.DEFAULT);
+ clearBlockSelection(true, true);
+ setCaretLocation();
+ return;
+ }
+ Event event = new Event();
+ event.start = selection.x;
+ event.end = selection.y;
+ event.text = getModelDelimitedText(text);
+ sendKeyEvent(event);
+ }
+}
+/**
+ * Prints the widget's text to the default printer.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void print() {
+ checkWidget();
+ Printer printer = new Printer();
+ StyledTextPrintOptions options = new StyledTextPrintOptions();
+ options.printTextForeground = true;
+ options.printTextBackground = true;
+ options.printTextFontStyle = true;
+ options.printLineBackground = true;
+ new Printing(this, printer, options).run();
+ printer.dispose();
+}
+/**
+ * Returns a runnable that will print the widget's text
+ * to the specified printer.
+ * <p>
+ * The runnable may be run in a non-UI thread.
+ * </p>
+ *
+ * @param printer the printer to print to
+ *
+ * @return a <code>Runnable</code> for printing the receiver's text
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when printer is null</li>
+ * </ul>
+ */
+public Runnable print(Printer printer) {
+ checkWidget();
+ if (printer == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ StyledTextPrintOptions options = new StyledTextPrintOptions();
+ options.printTextForeground = true;
+ options.printTextBackground = true;
+ options.printTextFontStyle = true;
+ options.printLineBackground = true;
+ return print(printer, options);
+}
+/**
+ * Returns a runnable that will print the widget's text
+ * to the specified printer.
+ * <p>
+ * The runnable may be run in a non-UI thread.
+ * </p>
+ *
+ * @param printer the printer to print to
+ * @param options print options to use during printing
+ *
+ * @return a <code>Runnable</code> for printing the receiver's text
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when printer or options is null</li>
+ * </ul>
+ * @since 2.1
+ */
+public Runnable print(Printer printer, StyledTextPrintOptions options) {
+ checkWidget();
+ if (printer == null || options == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ return new Printing(this, printer, options);
+}
+/**
+ * Causes the entire bounds of the receiver to be marked
+ * as needing to be redrawn. The next time a paint request
+ * is processed, the control will be completely painted.
+ * <p>
+ * Recalculates the content width for all lines in the bounds.
+ * When a <code>LineStyleListener</code> is used a redraw call
+ * is the only notification to the widget that styles have changed
+ * and that the content width may have changed.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Control#update()
+ */
+public void redraw() {
+ super.redraw();
+ int itemCount = getPartialBottomIndex() - topIndex + 1;
+ renderer.reset(topIndex, itemCount);
+ renderer.calculate(topIndex, itemCount);
+ setScrollBars(false);
+ doMouseLinkCursor();
+}
+/**
+ * Causes the rectangular area of the receiver specified by
+ * the arguments to be marked as needing to be redrawn.
+ * The next time a paint request is processed, that area of
+ * the receiver will be painted. If the <code>all</code> flag
+ * is <code>true</code>, any children of the receiver which
+ * intersect with the specified area will also paint their
+ * intersecting areas. If the <code>all</code> flag is
+ * <code>false</code>, the children will not be painted.
+ * <p>
+ * Marks the content width of all lines in the specified rectangle
+ * as unknown. Recalculates the content width of all visible lines.
+ * When a <code>LineStyleListener</code> is used a redraw call
+ * is the only notification to the widget that styles have changed
+ * and that the content width may have changed.
+ * </p>
+ *
+ * @param x the x coordinate of the area to draw
+ * @param y the y coordinate of the area to draw
+ * @param width the width of the area to draw
+ * @param height the height of the area to draw
+ * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see Control#update()
+ */
+public void redraw(int x, int y, int width, int height, boolean all) {
+ super.redraw(x, y, width, height, all);
+ if (height > 0) {
+ int firstLine = getLineIndex(y);
+ int lastLine = getLineIndex(y + height);
+ resetCache(firstLine, lastLine - firstLine + 1);
+ doMouseLinkCursor();
+ }
+}
+void redrawLines(int startLine, int lineCount, boolean bottomChanged) {
+ // do nothing if redraw range is completely invisible
+ int endLine = startLine + lineCount - 1;
+ int partialBottomIndex = getPartialBottomIndex();
+ int partialTopIndex = getPartialTopIndex();
+ if (startLine > partialBottomIndex || endLine < partialTopIndex) {
+ return;
+ }
+ // only redraw visible lines
+ if (startLine < partialTopIndex) {
+ startLine = partialTopIndex;
+ }
+ if (endLine > partialBottomIndex) {
+ endLine = partialBottomIndex;;
+ }
+ int redrawTop = getLinePixel(startLine);
+ int redrawBottom = getLinePixel(endLine + 1);
+ if (bottomChanged) redrawBottom = clientAreaHeight - bottomMargin;
+ int redrawWidth = clientAreaWidth - leftMargin - rightMargin;
+ super.redraw(leftMargin, redrawTop, redrawWidth, redrawBottom - redrawTop, true);
+}
+void redrawLinesBullet (int[] redrawLines) {
+ if (redrawLines == null) return;
+ int topIndex = getPartialTopIndex();
+ int bottomIndex = getPartialBottomIndex();
+ for (int i = 0; i < redrawLines.length; i++) {
+ int lineIndex = redrawLines[i];
+ if (!(topIndex <= lineIndex && lineIndex <= bottomIndex)) continue;
+ int width = -1;
+ Bullet bullet = renderer.getLineBullet(lineIndex, null);
+ if (bullet != null) {
+ StyleRange style = bullet.style;
+ GlyphMetrics metrics = style.metrics;
+ width = metrics.width;
+ }
+ if (width == -1) width = getClientArea().width;
+ int height = renderer.getLineHeight(lineIndex);
+ int y = getLinePixel(lineIndex);
+ super.redraw(0, y, width, height, false);
+ }
+}
+/**
+ * Redraws the specified text range.
+ *
+ * @param start offset of the first character to redraw
+ * @param length number of characters to redraw
+ * @param clearBackground true if the background should be cleared as
+ * part of the redraw operation. If true, the entire redraw range will
+ * be cleared before anything is redrawn. If the redraw range includes
+ * the last character of a line (i.e., the entire line is redrawn) the
+ * line is cleared all the way to the right border of the widget.
+ * The redraw operation will be faster and smoother if clearBackground
+ * is set to false. Whether or not the flag can be set to false depends
+ * on the type of change that has taken place. If font styles or
+ * background colors for the redraw range have changed, clearBackground
+ * should be set to true. If only foreground colors have changed for
+ * the redraw range, clearBackground can be set to false.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when start and/or end are outside the widget content</li>
+ * </ul>
+ */
+public void redrawRange(int start, int length, boolean clearBackground) {
+ checkWidget();
+ int end = start + length;
+ int contentLength = content.getCharCount();
+ if (start > end || start < 0 || end > contentLength) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ int firstLine = content.getLineAtOffset(start);
+ int lastLine = content.getLineAtOffset(end);
+ resetCache(firstLine, lastLine - firstLine + 1);
+ internalRedrawRange(start, length);
+ doMouseLinkCursor();
+}
+/**
+ * Removes the specified bidirectional segment listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @since 2.0
+ */
+public void removeBidiSegmentListener(BidiSegmentListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(LineGetSegments, listener);
+}
+/**
+ * Removes the specified caret listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void removeCaretListener(CaretListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(CaretMoved, listener);
+}
+/**
+ * Removes the specified extended modify listener.
+ *
+ * @param extendedModifyListener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeExtendedModifyListener(ExtendedModifyListener extendedModifyListener) {
+ checkWidget();
+ if (extendedModifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(ExtendedModify, extendedModifyListener);
+}
+/**
+ * Removes the specified line background listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeLineBackgroundListener(LineBackgroundListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(LineGetBackground, listener);
+}
+/**
+ * Removes the specified line style listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeLineStyleListener(LineStyleListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(LineGetStyle, listener);
+ setCaretLocation();
+}
+/**
+ * Removes the specified modify listener.
+ *
+ * @param modifyListener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeModifyListener(ModifyListener modifyListener) {
+ checkWidget();
+ if (modifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Modify, modifyListener);
+}
+/**
+ * Removes the specified listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ * @since 3.2
+ */
+public void removePaintObjectListener(PaintObjectListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(PaintObject, listener);
+}
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's selection.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #addSelectionListener
+ */
+public void removeSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Selection, listener);
+}
+/**
+ * Removes the specified verify listener.
+ *
+ * @param verifyListener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeVerifyListener(VerifyListener verifyListener) {
+ checkWidget();
+ if (verifyListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Verify, verifyListener);
+}
+/**
+ * Removes the specified key verify listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeVerifyKeyListener(VerifyKeyListener listener) {
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(VerifyKey, listener);
+}
+/**
+ * Removes the specified word movement listener.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ *
+ * @see MovementEvent
+ * @see MovementListener
+ * @see #addWordMovementListener
+ *
+ * @since 3.3
+ */
+
+public void removeWordMovementListener(MovementListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ removeListener(WordNext, listener);
+ removeListener(WordPrevious, listener);
+}
+/**
+ * Replaces the styles in the given range with new styles. This method
+ * effectively deletes the styles in the given range and then adds the
+ * the new styles.
+ * <p>
+ * Note: Because a StyleRange includes the start and length, the
+ * same instance cannot occur multiple times in the array of styles.
+ * If the same style attributes, such as font and color, occur in
+ * multiple StyleRanges, <code>setStyleRanges(int, int, int[], StyleRange[])</code>
+ * can be used to share styles and reduce memory usage.
+ * </p><p>
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param start offset of first character where styles will be deleted
+ * @param length length of the range to delete styles in
+ * @param ranges StyleRange objects containing the new style information.
+ * The ranges should not overlap and should be within the specified start
+ * and length. The style rendering is undefined if the ranges do overlap
+ * or are ill-defined. Must not be null.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when either start or end is outside the valid range (0 <= offset <= getCharCount())</li>
+ * <li>ERROR_NULL_ARGUMENT when ranges is null</li>
+ * </ul>
+ *
+ * @since 2.0
+ *
+ * @see #setStyleRanges(int, int, int[], StyleRange[])
+ */
+public void replaceStyleRanges(int start, int length, StyleRange[] ranges) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (ranges == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ setStyleRanges(start, length, null, ranges, false);
+}
+/**
+ * Replaces the given text range with new text.
+ * If the widget has the SWT.SINGLE style and "text" contains more than
+ * one line, only the first line is rendered but the text is stored
+ * unchanged. A subsequent call to getText will return the same text
+ * that was set. Note that only a single line of text should be set when
+ * the SWT.SINGLE style is used.
+ * <p>
+ * <b>NOTE:</b> During the replace operation the current selection is
+ * changed as follows:
+ * <ul>
+ * <li>selection before replaced text: selection unchanged
+ * <li>selection after replaced text: adjust the selection so that same text
+ * remains selected
+ * <li>selection intersects replaced text: selection is cleared and caret
+ * is placed after inserted text
+ * </ul>
+ * </p>
+ *
+ * @param start offset of first character to replace
+ * @param length number of characters to replace. Use 0 to insert text
+ * @param text new text. May be empty to delete text.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when either start or end is outside the valid range (0 <= offset <= getCharCount())</li>
+ * <li>ERROR_INVALID_ARGUMENT when either start or end is inside a multi byte line delimiter.
+ * Splitting a line delimiter for example by inserting text in between the CR and LF and deleting part of a line delimiter is not supported</li>
+ * <li>ERROR_NULL_ARGUMENT when string is null</li>
+ * </ul>
+ */
+public void replaceTextRange(int start, int length, String text) {
+ checkWidget();
+ if (text == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ int contentLength = getCharCount();
+ int end = start + length;
+ if (start > end || start < 0 || end > contentLength) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ Event event = new Event();
+ event.start = start;
+ event.end = end;
+ event.text = text;
+ modifyContent(event, false);
+}
+/**
+ * Resets the caret position, selection and scroll offsets. Recalculate
+ * the content width and scroll bars. Redraw the widget.
+ */
+void reset() {
+ ScrollBar verticalBar = getVerticalBar();
+ ScrollBar horizontalBar = getHorizontalBar();
+ setCaretOffset(0, SWT.DEFAULT);
+ topIndex = 0;
+ topIndexY = 0;
+ verticalScrollOffset = 0;
+ horizontalScrollOffset = 0;
+ resetSelection();
+ renderer.setContent(content);
+ if (verticalBar != null) {
+ verticalBar.setSelection(0);
+ }
+ if (horizontalBar != null) {
+ horizontalBar.setSelection(0);
+ }
+ resetCache(0, 0);
+ setCaretLocation();
+ super.redraw();
+}
+void resetCache(int firstLine, int count) {
+ int maxLineIndex = renderer.maxWidthLineIndex;
+ renderer.reset(firstLine, count);
+ renderer.calculateClientArea();
+ if (0 <= maxLineIndex && maxLineIndex < content.getLineCount()) {
+ renderer.calculate(maxLineIndex, 1);
+ }
+ setScrollBars(true);
+ if (!isFixedLineHeight()) {
+ if (topIndex > firstLine) {
+ verticalScrollOffset = -1;
+ }
+ renderer.calculateIdle();
+ }
+}
+/**
+ * Resets the selection.
+ */
+void resetSelection() {
+ selection.x = selection.y = caretOffset;
+ selectionAnchor = -1;
+}
+
+public void scroll(int destX, int destY, int x, int y, int width, int height, boolean all) {
+ super.scroll(destX, destY, x, y, width, height, false);
+ if (all) {
+ int deltaX = destX - x, deltaY = destY - y;
+ Control[] children = getChildren();
+ for (int i=0; i<children.length; i++) {
+ Control child = children[i];
+ Rectangle rect = child.getBounds();
+ child.setLocation(rect.x + deltaX, rect.y + deltaY);
+ }
+ }
+}
+
+/**
+ * Scrolls the widget horizontally.
+ *
+ * @param pixels number of pixels to scroll, > 0 = scroll left,
+ * < 0 scroll right
+ * @param adjustScrollBar
+ * true= the scroll thumb will be moved to reflect the new scroll offset.
+ * false = the scroll thumb will not be moved
+ * @return
+ * true=the widget was scrolled
+ * false=the widget was not scrolled, the given offset is not valid.
+ */
+boolean scrollHorizontal(int pixels, boolean adjustScrollBar) {
+ if (pixels == 0) {
+ return false;
+ }
+ ScrollBar horizontalBar = getHorizontalBar();
+ if (horizontalBar != null && adjustScrollBar) {
+ horizontalBar.setSelection(horizontalScrollOffset + pixels);
+ }
+ int scrollHeight = clientAreaHeight - topMargin - bottomMargin;
+ if (pixels > 0) {
+ int sourceX = leftMargin + pixels;
+ int scrollWidth = clientAreaWidth - sourceX - rightMargin;
+ if (scrollWidth > 0) {
+ scroll(leftMargin, topMargin, sourceX, topMargin, scrollWidth, scrollHeight, true);
+ }
+ if (sourceX > scrollWidth) {
+ super.redraw(leftMargin + scrollWidth, topMargin, pixels - scrollWidth, scrollHeight, true);
+ }
+ } else {
+ int destinationX = leftMargin - pixels;
+ int scrollWidth = clientAreaWidth - destinationX - rightMargin;
+ if (scrollWidth > 0) {
+ scroll(destinationX, topMargin, leftMargin, topMargin, scrollWidth, scrollHeight, true);
+ }
+ if (destinationX > scrollWidth) {
+ super.redraw(leftMargin + scrollWidth, topMargin, -pixels - scrollWidth, scrollHeight, true);
+ }
+ }
+ horizontalScrollOffset += pixels;
+ setCaretLocation();
+ return true;
+}
+/**
+ * Scrolls the widget vertically.
+ *
+ * @param pixel the new vertical scroll offset
+ * @param adjustScrollBar
+ * true= the scroll thumb will be moved to reflect the new scroll offset.
+ * false = the scroll thumb will not be moved
+ * @return
+ * true=the widget was scrolled
+ * false=the widget was not scrolled
+ */
+boolean scrollVertical(int pixels, boolean adjustScrollBar) {
+ if (pixels == 0) {
+ return false;
+ }
+ if (verticalScrollOffset != -1) {
+ ScrollBar verticalBar = getVerticalBar();
+ if (verticalBar != null && adjustScrollBar) {
+ verticalBar.setSelection(verticalScrollOffset + pixels);
+ }
+ int scrollWidth = clientAreaWidth - leftMargin - rightMargin;
+ if (pixels > 0) {
+ int sourceY = topMargin + pixels;
+ int scrollHeight = clientAreaHeight - sourceY - bottomMargin;
+ if (scrollHeight > 0) {
+ scroll(leftMargin, topMargin, leftMargin, sourceY, scrollWidth, scrollHeight, true);
+ }
+ if (sourceY > scrollHeight) {
+ int redrawY = Math.max(0, topMargin + scrollHeight);
+ int redrawHeight = Math.min(clientAreaHeight, pixels - scrollHeight);
+ super.redraw(leftMargin, redrawY, scrollWidth, redrawHeight, true);
+ }
+ } else {
+ int destinationY = topMargin - pixels;
+ int scrollHeight = clientAreaHeight - destinationY - bottomMargin;
+ if (scrollHeight > 0) {
+ scroll(leftMargin, destinationY, leftMargin, topMargin, scrollWidth, scrollHeight, true);
+ }
+ if (destinationY > scrollHeight) {
+ int redrawY = Math.max(0, topMargin + scrollHeight);
+ int redrawHeight = Math.min(clientAreaHeight, -pixels - scrollHeight);
+ super.redraw(leftMargin, redrawY, scrollWidth, redrawHeight, true);
+ }
+ }
+ verticalScrollOffset += pixels;
+ calculateTopIndex(pixels);
+ } else {
+ calculateTopIndex(pixels);
+ super.redraw();
+ }
+ setCaretLocation();
+ return true;
+}
+void scrollText(int srcY, int destY) {
+ if (srcY == destY) return;
+ int deltaY = destY - srcY;
+ int scrollWidth = clientAreaWidth - leftMargin - rightMargin, scrollHeight;
+ if (deltaY > 0) {
+ scrollHeight = clientAreaHeight - srcY - bottomMargin;
+ } else {
+ scrollHeight = clientAreaHeight - destY - bottomMargin;
+ }
+ scroll(leftMargin, destY, leftMargin, srcY, scrollWidth, scrollHeight, true);
+ if ((0 < srcY + scrollHeight) && (topMargin > srcY)) {
+ super.redraw(leftMargin, deltaY, scrollWidth, topMargin, false);
+ }
+ if ((0 < destY + scrollHeight) && (topMargin > destY)) {
+ super.redraw(leftMargin, 0, scrollWidth, topMargin, false);
+ }
+ if ((clientAreaHeight - bottomMargin < srcY + scrollHeight) && (clientAreaHeight > srcY)) {
+ super.redraw(leftMargin, clientAreaHeight - bottomMargin + deltaY, scrollWidth, bottomMargin, false);
+ }
+ if ((clientAreaHeight - bottomMargin < destY + scrollHeight) && (clientAreaHeight > destY)) {
+ super.redraw(leftMargin, clientAreaHeight - bottomMargin, scrollWidth, bottomMargin, false);
+ }
+}
+void sendAccessibleTextChanged(int start, int newCharCount, int replaceCharCount) {
+ Accessible accessible = getAccessible();
+ if (replaceCharCount != 0) {
+ accessible.textChanged(ACC.TEXT_DELETE, start, replaceCharCount);
+ }
+ if (newCharCount != 0) {
+ accessible.textChanged(ACC.TEXT_INSERT, start, newCharCount);
+ }
+}
+/**
+ * Selects all the text.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void selectAll() {
+ checkWidget();
+ if (blockSelection) {
+ renderer.calculate(0, content.getLineCount());
+ setScrollBars(false);
+ int verticalScrollOffset = getVerticalScrollOffset();
+ int left = leftMargin - horizontalScrollOffset;
+ int top = topMargin - verticalScrollOffset;
+ int right = renderer.getWidth() - rightMargin - horizontalScrollOffset;
+ int bottom = renderer.getHeight() - bottomMargin - verticalScrollOffset;
+ setBlockSelectionLocation(left, top, right, bottom, false);
+ return;
+ }
+ setSelection(0, Math.max(getCharCount(),0));
+}
+/**
+ * Replaces/inserts text as defined by the event.
+ *
+ * @param event the text change event.
+ * <ul>
+ * <li>event.start - the replace start offset</li>
+ * <li>event.end - the replace end offset</li>
+ * <li>event.text - the new text</li>
+ * </ul>
+ */
+void sendKeyEvent(Event event) {
+ if (editable) {
+ modifyContent(event, true);
+ }
+}
+/**
+ * Returns a StyledTextEvent that can be used to request data such
+ * as styles and background color for a line.
+ * <p>
+ * The specified line may be a visual (wrapped) line if in word
+ * wrap mode. The returned object will always be for a logical
+ * (unwrapped) line.
+ * </p>
+ *
+ * @param lineOffset offset of the line. This may be the offset of
+ * a visual line if the widget is in word wrap mode.
+ * @param line line text. This may be the text of a visual line if
+ * the widget is in word wrap mode.
+ * @return StyledTextEvent that can be used to request line data
+ * for the given line.
+ */
+StyledTextEvent sendLineEvent(int eventType, int lineOffset, String line) {
+ StyledTextEvent event = null;
+ if (isListening(eventType)) {
+ event = new StyledTextEvent(content);
+ event.detail = lineOffset;
+ event.text = line;
+ event.alignment = alignment;
+ event.indent = indent;
+ event.justify = justify;
+ notifyListeners(eventType, event);
+ }
+ return event;
+}
+/**
+ * Sends the specified selection event.
+ */
+void sendSelectionEvent() {
+ getAccessible().textSelectionChanged();
+ Event event = new Event();
+ event.x = selection.x;
+ event.y = selection.y;
+ notifyListeners(SWT.Selection, event);
+}
+int sendTextEvent(int left, int right, int lineIndex, String text, boolean fillWithSpaces) {
+ int lineWidth = 0, start, end;
+ StringBuffer buffer = new StringBuffer();
+ if (lineIndex < content.getLineCount()) {
+ int[] trailing = new int[1];
+ start = getOffsetAtPoint(left, getLinePixel(lineIndex), trailing, true);
+ if (start == -1) {
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ int lineLegth = content.getLine(lineIndex).length();
+ start = end = lineOffset + lineLegth;
+ if (fillWithSpaces) {
+ TextLayout layout = renderer.getTextLayout(lineIndex);
+ lineWidth = layout.getBounds().width;
+ renderer.disposeTextLayout(layout);
+ }
+ } else {
+ start += trailing[0];
+ end = left == right ? start : getOffsetAtPoint(right, 0, lineIndex, null);
+ fillWithSpaces = false;
+ }
+ } else {
+ start = end = content.getCharCount();
+ buffer.append(content.getLineDelimiter());
+ }
+ if (start > end) {
+ int temp = start;
+ start = end;
+ end = temp;
+ }
+ if (fillWithSpaces) {
+ int spacesWidth = left - lineWidth + horizontalScrollOffset - leftMargin;
+ int spacesCount = spacesWidth / renderer.averageCharWidth;
+ for (int i = 0; i < spacesCount; i++) {
+ buffer.append(' ');
+ }
+ }
+ buffer.append(text);
+ Event event = new Event();
+ event.start = start;
+ event.end = end;
+ event.text = buffer.toString();
+ sendKeyEvent(event);
+ return event.start + event.text.length();
+}
+int sendWordBoundaryEvent(int eventType, int movement, int offset, int newOffset, String lineText, int lineOffset) {
+ if (isListening(eventType)) {
+ StyledTextEvent event = new StyledTextEvent(content);
+ event.detail = lineOffset;
+ event.text = lineText;
+ event.count = movement;
+ event.start = offset;
+ event.end = newOffset;
+ notifyListeners(eventType, event);
+ offset = event.end;
+ if (offset != newOffset) {
+ int length = getCharCount();
+ if (offset < 0) {
+ offset = 0;
+ } else if (offset > length) {
+ offset = length;
+ } else {
+ if (isLineDelimiter(offset)) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ }
+ return offset;
+ }
+ return newOffset;
+}
+void setAlignment() {
+ if ((getStyle() & SWT.SINGLE) == 0) return;
+ int alignment = renderer.getLineAlignment(0, this.alignment);
+ int newAlignmentMargin = 0;
+ if (alignment != SWT.LEFT) {
+ renderer.calculate(0, 1);
+ int width = renderer.getWidth() - alignmentMargin;
+ newAlignmentMargin = clientAreaWidth - width;
+ if (newAlignmentMargin < 0) newAlignmentMargin = 0;
+ if (alignment == SWT.CENTER) newAlignmentMargin /= 2;
+ }
+ if (alignmentMargin != newAlignmentMargin) {
+ leftMargin -= alignmentMargin;
+ leftMargin += newAlignmentMargin;
+ alignmentMargin = newAlignmentMargin;
+ resetCache(0, 1);
+ setCaretLocation();
+ super.redraw();
+ }
+}
+/**
+ * Sets the alignment of the widget. The argument should be one of <code>SWT.LEFT</code>,
+ * <code>SWT.CENTER</code> or <code>SWT.RIGHT</code>. The alignment applies for all lines.
+ * </p><p>
+ * Note that if <code>SWT.MULTI</code> is set, then <code>SWT.WRAP</code> must also be set
+ * in order to stabilize the right edge before setting alignment.
+ * </p>
+ *
+ * @param alignment the new alignment
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #setLineAlignment(int, int, int)
+ *
+ * @since 3.2
+ */
+public void setAlignment(int alignment) {
+ checkWidget();
+ alignment &= (SWT.LEFT | SWT.RIGHT | SWT.CENTER);
+ if (alignment == 0 || this.alignment == alignment) return;
+ this.alignment = alignment;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ setAlignment();
+ super.redraw();
+}
+/**
+ * @see Control#setBackground(Color)
+ */
+public void setBackground(Color color) {
+ checkWidget();
+ background = color;
+ super.setBackground(color);
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the block selection mode.
+ *
+ * @param blockSelection true=enable block selection, false=disable block selection
+ *
+ * @since 3.5
+ */
+public void setBlockSelection(boolean blockSelection) {
+ checkWidget();
+ if ((getStyle() & SWT.SINGLE) != 0) return;
+ if (blockSelection == this.blockSelection) return;
+ if (wordWrap) return;
+ this.blockSelection = blockSelection;
+ if (cursor == null) {
+ Display display = getDisplay();
+ int type = blockSelection ? SWT.CURSOR_CROSS : SWT.CURSOR_IBEAM;
+ super.setCursor(display.getSystemCursor(type));
+ }
+ if (blockSelection) {
+ int start = selection.x;
+ int end = selection.y;
+ if (start != end) {
+ setBlockSelectionOffset(start, end, false);
+ }
+ } else {
+ clearBlockSelection(false, false);
+ }
+}
+/**
+ * Sets the block selection bounds. The bounds is
+ * relative to the upper left corner of the document.
+ *
+ * @param rect the new bounds for the block selection
+ *
+ * @see #setBlockSelectionBounds(int, int, int, int)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when point is null</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setBlockSelectionBounds(Rectangle rect) {
+ checkWidget();
+ if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ setBlockSelectionBounds(rect.x, rect.y, rect.width, rect.height);
+}
+/**
+ * Sets the block selection bounds. The bounds is
+ * relative to the upper left corner of the document.
+ *
+ * @param x the new x coordinate for the block selection
+ * @param y the new y coordinate for the block selection
+ * @param width the new width for the block selection
+ * @param height the new height for the block selection
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setBlockSelectionBounds(int x, int y, int width, int height) {
+ checkWidget();
+ int verticalScrollOffset = getVerticalScrollOffset();
+ if (!blockSelection) {
+ x -= horizontalScrollOffset;
+ y -= verticalScrollOffset;
+ int start = getOffsetAtPoint(x, y, null);
+ int end = getOffsetAtPoint(x+width-1, y+height-1, null);
+ setSelection(start, end - start, false, false);
+ setCaretLocation();
+ return;
+ }
+ int minY = topMargin;
+ int minX = leftMargin;
+ int maxY = renderer.getHeight() - bottomMargin;
+ int maxX = Math.max(clientAreaWidth, renderer.getWidth()) - rightMargin;
+ int anchorX = Math.max(minX, Math.min(maxX, x)) - horizontalScrollOffset;
+ int anchorY = Math.max(minY, Math.min(maxY, y)) - verticalScrollOffset;
+ int locationX = Math.max(minX, Math.min(maxX, x + width)) - horizontalScrollOffset;
+ int locationY = Math.max(minY, Math.min(maxY, y + height - 1)) - verticalScrollOffset;
+ if (isFixedLineHeight() && renderer.fixedPitch) {
+ int avg = renderer.averageCharWidth;
+ anchorX = ((anchorX - leftMargin + horizontalScrollOffset) / avg * avg) + leftMargin - horizontalScrollOffset;
+ locationX = ((locationX + avg / 2 - leftMargin + horizontalScrollOffset) / avg * avg) + leftMargin - horizontalScrollOffset;
+ }
+ setBlockSelectionLocation(anchorX, anchorY, locationX, locationY, false);
+}
+void setBlockSelectionLocation (int x, int y, boolean sendEvent) {
+ int verticalScrollOffset = getVerticalScrollOffset();
+ blockXLocation = x + horizontalScrollOffset;
+ blockYLocation = y + verticalScrollOffset;
+ int[] alignment = new int[1];
+ int offset = getOffsetAtPoint(x, y, alignment);
+ setCaretOffset(offset, alignment[0]);
+ if (blockXAnchor == -1) {
+ blockXAnchor = blockXLocation;
+ blockYAnchor = blockYLocation;
+ selectionAnchor = caretOffset;
+ }
+ doBlockSelection(sendEvent);
+}
+void setBlockSelectionLocation (int anchorX, int anchorY, int x, int y, boolean sendEvent) {
+ int verticalScrollOffset = getVerticalScrollOffset();
+ blockXAnchor = anchorX + horizontalScrollOffset;
+ blockYAnchor = anchorY + verticalScrollOffset;
+ selectionAnchor = getOffsetAtPoint(anchorX, anchorY, null);
+ setBlockSelectionLocation(x, y, sendEvent);
+}
+void setBlockSelectionOffset (int offset, boolean sendEvent) {
+ Point point = getPointAtOffset(offset);
+ int verticalScrollOffset = getVerticalScrollOffset();
+ blockXLocation = point.x + horizontalScrollOffset;
+ blockYLocation = point.y + verticalScrollOffset;
+ setCaretOffset(offset, SWT.DEFAULT);
+ if (blockXAnchor == -1) {
+ blockXAnchor = blockXLocation;
+ blockYAnchor = blockYLocation;
+ selectionAnchor = caretOffset;
+ }
+ doBlockSelection(sendEvent);
+}
+void setBlockSelectionOffset (int anchorOffset, int offset, boolean sendEvent) {
+ int verticalScrollOffset = getVerticalScrollOffset();
+ Point anchorPoint = getPointAtOffset(anchorOffset);
+ blockXAnchor = anchorPoint.x + horizontalScrollOffset;
+ blockYAnchor = anchorPoint.y + verticalScrollOffset;
+ selectionAnchor = anchorOffset;
+ setBlockSelectionOffset(offset, sendEvent);
+}
+/**
+ * Sets the receiver's caret. Set the caret's height and location.
+ *
+ * </p>
+ * @param caret the new caret for the receiver
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setCaret(Caret caret) {
+ checkWidget ();
+ super.setCaret(caret);
+ caretDirection = SWT.NULL;
+ if (caret != null) {
+ setCaretLocation();
+ }
+}
+/**
+ * Sets the BIDI coloring mode. When true the BIDI text display
+ * algorithm is applied to segments of text that are the same
+ * color.
+ *
+ * @param mode the new coloring mode
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated use BidiSegmentListener instead.
+ */
+public void setBidiColoring(boolean mode) {
+ checkWidget();
+ bidiColoring = mode;
+}
+/**
+ * Sets the bottom margin.
+ *
+ * @param bottomMargin the bottom margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setBottomMargin (int bottomMargin) {
+ checkWidget();
+ setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
+}
+/**
+ * Moves the Caret to the current caret offset.
+ */
+void setCaretLocation() {
+ Point newCaretPos = getPointAtOffset(caretOffset);
+ setCaretLocation(newCaretPos, getCaretDirection());
+}
+void setCaretLocation(Point location, int direction) {
+ Caret caret = getCaret();
+ if (caret != null) {
+ boolean isDefaultCaret = caret == defaultCaret;
+ int lineHeight = renderer.getLineHeight();
+ int caretHeight = lineHeight;
+ if (!isFixedLineHeight() && isDefaultCaret) {
+ caretHeight = getBoundsAtOffset(caretOffset).height;
+ if (caretHeight != lineHeight) {
+ direction = SWT.DEFAULT;
+ }
+ }
+ int imageDirection = direction;
+ if (isMirrored()) {
+ if (imageDirection == SWT.LEFT) {
+ imageDirection = SWT.RIGHT;
+ } else if (imageDirection == SWT.RIGHT) {
+ imageDirection = SWT.LEFT;
+ }
+ }
+ if (isDefaultCaret && imageDirection == SWT.RIGHT) {
+ location.x -= (caret.getSize().x - 1);
+ }
+ if (isDefaultCaret) {
+ caret.setBounds(location.x, location.y, caretWidth, caretHeight);
+ } else {
+ caret.setLocation(location);
+ }
+ getAccessible().textCaretMoved(getCaretOffset());
+ if (direction != caretDirection) {
+ caretDirection = direction;
+ if (isDefaultCaret) {
+ if (imageDirection == SWT.DEFAULT) {
+ defaultCaret.setImage(null);
+ } else if (imageDirection == SWT.LEFT) {
+ defaultCaret.setImage(leftCaretBitmap);
+ } else if (imageDirection == SWT.RIGHT) {
+ defaultCaret.setImage(rightCaretBitmap);
+ }
+ }
+ if (caretDirection == SWT.LEFT) {
+ BidiUtil.setKeyboardLanguage(BidiUtil.KEYBOARD_NON_BIDI);
+ } else if (caretDirection == SWT.RIGHT) {
+ BidiUtil.setKeyboardLanguage(BidiUtil.KEYBOARD_BIDI);
+ }
+ }
+ updateCaretVisibility();
+ }
+ columnX = location.x;
+}
+/**
+ * Sets the caret offset.
+ *
+ * @param offset caret offset, relative to the first character in the text.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when either the start or the end of the selection range is inside a
+ * multi byte line delimiter (and thus neither clearly in front of or after the line delimiter)
+ * </ul>
+ */
+public void setCaretOffset(int offset) {
+ checkWidget();
+ int length = getCharCount();
+ if (length > 0 && offset != caretOffset) {
+ if (offset < 0) {
+ offset = 0;
+ } else if (offset > length) {
+ offset = length;
+ } else {
+ if (isLineDelimiter(offset)) {
+ // offset is inside a multi byte line delimiter. This is an
+ // illegal operation and an exception is thrown. Fixes 1GDKK3R
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ }
+ setCaretOffset(offset, PREVIOUS_OFFSET_TRAILING);
+ // clear the selection if the caret is moved.
+ // don't notify listeners about the selection change.
+ if (blockSelection) {
+ clearBlockSelection(true, false);
+ } else {
+ clearSelection(false);
+ }
+ }
+ setCaretLocation();
+}
+void setCaretOffset(int offset, int alignment) {
+ if (caretOffset != offset) {
+ caretOffset = offset;
+ if (isListening(CaretMoved)) {
+ StyledTextEvent event = new StyledTextEvent(content);
+ event.end = caretOffset;
+ notifyListeners(CaretMoved, event);
+ }
+ }
+ if (alignment != SWT.DEFAULT) {
+ caretAlignment = alignment;
+ }
+}
+/**
+ * Copies the specified text range to the clipboard. The text will be placed
+ * in the clipboard in plain text format and RTF format.
+ *
+ * @param start start index of the text
+ * @param length length of text to place in clipboard
+ *
+ * @exception SWTError, see Clipboard.setContents
+ * @see org.eclipse.swt.dnd.Clipboard#setContents
+ */
+void setClipboardContent(int start, int length, int clipboardType) throws SWTError {
+ if (clipboardType == DND.SELECTION_CLIPBOARD && !(IS_MOTIF || IS_GTK)) return;
+ TextTransfer plainTextTransfer = TextTransfer.getInstance();
+ TextWriter plainTextWriter = new TextWriter(start, length);
+ String plainText = getPlatformDelimitedText(plainTextWriter);
+ Object[] data;
+ Transfer[] types;
+ if (clipboardType == DND.SELECTION_CLIPBOARD) {
+ data = new Object[]{plainText};
+ types = new Transfer[]{plainTextTransfer};
+ } else {
+ RTFTransfer rtfTransfer = RTFTransfer.getInstance();
+ RTFWriter rtfWriter = new RTFWriter(start, length);
+ String rtfText = getPlatformDelimitedText(rtfWriter);
+ data = new Object[]{rtfText, plainText};
+ types = new Transfer[]{rtfTransfer, plainTextTransfer};
+ }
+ clipboard.setContents(data, types, clipboardType);
+}
+/**
+ * Sets the content implementation to use for text storage.
+ *
+ * @param newContent StyledTextContent implementation to use for text storage.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void setContent(StyledTextContent newContent) {
+ checkWidget();
+ if (newContent == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ if (content != null) {
+ content.removeTextChangeListener(textChangeListener);
+ }
+ content = newContent;
+ content.addTextChangeListener(textChangeListener);
+ reset();
+}
+/**
+ * Sets the receiver's cursor to the cursor specified by the
+ * argument. Overridden to handle the null case since the
+ * StyledText widget uses an ibeam as its default cursor.
+ *
+ * @see Control#setCursor(Cursor)
+ */
+public void setCursor (Cursor cursor) {
+ checkWidget();
+ if (cursor != null && cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ this.cursor = cursor;
+ if (cursor == null) {
+ Display display = getDisplay();
+ int type = blockSelection ? SWT.CURSOR_CROSS : SWT.CURSOR_IBEAM;
+ super.setCursor(display.getSystemCursor(type));
+ } else {
+ super.setCursor(cursor);
+ }
+}
+/**
+ * Sets whether the widget implements double click mouse behavior.
+ * </p>
+ *
+ * @param enable if true double clicking a word selects the word, if false
+ * double clicks have the same effect as regular mouse clicks.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setDoubleClickEnabled(boolean enable) {
+ checkWidget();
+ doubleClickEnabled = enable;
+}
+public void setDragDetect (boolean dragDetect) {
+ checkWidget ();
+ this.dragDetect = dragDetect;
+}
+/**
+ * Sets whether the widget content can be edited.
+ * </p>
+ *
+ * @param editable if true content can be edited, if false content can not be
+ * edited
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setEditable(boolean editable) {
+ checkWidget();
+ this.editable = editable;
+}
+/**
+ * Sets a new font to render text with.
+ * <p>
+ * <b>NOTE:</b> Italic fonts are not supported unless they have no overhang
+ * and the same baseline as regular fonts.
+ * </p>
+ *
+ * @param font new font
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setFont(Font font) {
+ checkWidget();
+ int oldLineHeight = renderer.getLineHeight();
+ super.setFont(font);
+ renderer.setFont(getFont(), tabLength);
+ // keep the same top line visible. fixes 5815
+ if (isFixedLineHeight()) {
+ int lineHeight = renderer.getLineHeight();
+ if (lineHeight != oldLineHeight) {
+ int vscroll = (getVerticalScrollOffset() * lineHeight / oldLineHeight) - getVerticalScrollOffset();
+ scrollVertical(vscroll, true);
+ }
+ }
+ resetCache(0, content.getLineCount());
+ claimBottomFreeSpace();
+ calculateScrollBars();
+ if (isBidiCaret()) createCaretBitmaps();
+ caretDirection = SWT.NULL;
+ setCaretLocation();
+ super.redraw();
+}
+public void setForeground(Color color) {
+ checkWidget();
+ foreground = color;
+ super.setForeground(getForeground());
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the horizontal scroll offset relative to the start of the line.
+ * Do nothing if there is no text set.
+ * <p>
+ * <b>NOTE:</b> The horizontal index is reset to 0 when new text is set in the
+ * widget.
+ * </p>
+ *
+ * @param offset horizontal scroll offset relative to the start
+ * of the line, measured in character increments starting at 0, if
+ * equal to 0 the content is not scrolled, if > 0 = the content is scrolled.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setHorizontalIndex(int offset) {
+ checkWidget();
+ if (getCharCount() == 0) {
+ return;
+ }
+ if (offset < 0) {
+ offset = 0;
+ }
+ offset *= getHorizontalIncrement();
+ // allow any value if client area width is unknown or 0.
+ // offset will be checked in resize handler.
+ // don't use isVisible since width is known even if widget
+ // is temporarily invisible
+ if (clientAreaWidth > 0) {
+ int width = renderer.getWidth();
+ // prevent scrolling if the content fits in the client area.
+ // align end of longest line with right border of client area
+ // if offset is out of range.
+ if (offset > width - clientAreaWidth) {
+ offset = Math.max(0, width - clientAreaWidth);
+ }
+ }
+ scrollHorizontal(offset - horizontalScrollOffset, true);
+}
+/**
+ * Sets the horizontal pixel offset relative to the start of the line.
+ * Do nothing if there is no text set.
+ * <p>
+ * <b>NOTE:</b> The horizontal pixel offset is reset to 0 when new text
+ * is set in the widget.
+ * </p>
+ *
+ * @param pixel horizontal pixel offset relative to the start
+ * of the line.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.0
+ */
+public void setHorizontalPixel(int pixel) {
+ checkWidget();
+ if (getCharCount() == 0) {
+ return;
+ }
+ if (pixel < 0) {
+ pixel = 0;
+ }
+ // allow any value if client area width is unknown or 0.
+ // offset will be checked in resize handler.
+ // don't use isVisible since width is known even if widget
+ // is temporarily invisible
+ if (clientAreaWidth > 0) {
+ int width = renderer.getWidth();
+ // prevent scrolling if the content fits in the client area.
+ // align end of longest line with right border of client area
+ // if offset is out of range.
+ if (pixel > width - clientAreaWidth) {
+ pixel = Math.max(0, width - clientAreaWidth);
+ }
+ }
+ scrollHorizontal(pixel - horizontalScrollOffset, true);
+}
+/**
+ * Sets the line indentation of the widget.
+ * <p>
+ * It is the amount of blank space, in pixels, at the beginning of each line.
+ * When a line wraps in several lines only the first one is indented.
+ * </p>
+ *
+ * @param indent the new indent
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #setLineIndent(int, int, int)
+ *
+ * @since 3.2
+ */
+public void setIndent(int indent) {
+ checkWidget();
+ if (this.indent == indent || indent < 0) return;
+ this.indent = indent;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets whether the widget should justify lines.
+ *
+ * @param justify whether lines should be justified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #setLineJustify(int, int, boolean)
+ *
+ * @since 3.2
+ */
+public void setJustify(boolean justify) {
+ checkWidget();
+ if (this.justify == justify) return;
+ this.justify = justify;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Maps a key to an action.
+ * <p>
+ * One action can be associated with N keys. However, each key can only
+ * have one action (key:action is N:1 relation).
+ * </p>
+ *
+ * @param key a key code defined in SWT.java or a character.
+ * Optionally ORd with a state mask. Preferred state masks are one or more of
+ * SWT.MOD1, SWT.MOD2, SWT.MOD3, since these masks account for modifier platform
+ * differences. However, there may be cases where using the specific state masks
+ * (i.e., SWT.CTRL, SWT.SHIFT, SWT.ALT, SWT.COMMAND) makes sense.
+ * @param action one of the predefined actions defined in ST.java.
+ * Use SWT.NULL to remove a key binding.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setKeyBinding(int key, int action) {
+ checkWidget();
+ int modifierValue = key & SWT.MODIFIER_MASK;
+ char keyChar = (char)(key & SWT.KEY_MASK);
+ if (Compatibility.isLetter(keyChar)) {
+ // make the keybinding case insensitive by adding it
+ // in its upper and lower case form
+ char ch = Character.toUpperCase(keyChar);
+ int newKey = ch | modifierValue;
+ if (action == SWT.NULL) {
+ keyActionMap.remove(new Integer(newKey));
+ } else {
+ keyActionMap.put(new Integer(newKey), new Integer(action));
+ }
+ ch = Character.toLowerCase(keyChar);
+ newKey = ch | modifierValue;
+ if (action == SWT.NULL) {
+ keyActionMap.remove(new Integer(newKey));
+ } else {
+ keyActionMap.put(new Integer(newKey), new Integer(action));
+ }
+ } else {
+ if (action == SWT.NULL) {
+ keyActionMap.remove(new Integer(key));
+ } else {
+ keyActionMap.put(new Integer(key), new Integer(action));
+ }
+ }
+}
+/**
+ * Sets the left margin.
+ *
+ * @param leftMargin the left margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setLeftMargin (int leftMargin) {
+ checkWidget();
+ setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
+}
+/**
+ * Sets the alignment of the specified lines. The argument should be one of <code>SWT.LEFT</code>,
+ * <code>SWT.CENTER</code> or <code>SWT.RIGHT</code>.
+ * <p><p>
+ * Note that if <code>SWT.MULTI</code> is set, then <code>SWT.WRAP</code> must also be set
+ * in order to stabilize the right edge before setting alignment.
+ * </p>
+ * Should not be called if a LineStyleListener has been set since the listener
+ * maintains the line attributes.
+ * </p><p>
+ * All line attributes are maintained relative to the line text, not the
+ * line index that is specified in this method call.
+ * During text changes, when entire lines are inserted or removed, the line
+ * attributes that are associated with the lines after the change
+ * will "move" with their respective text. An entire line is defined as
+ * extending from the first character on a line to the last and including the
+ * line delimiter.
+ * </p><p>
+ * When two lines are joined by deleting a line delimiter, the top line
+ * attributes take precedence and the attributes of the bottom line are deleted.
+ * For all other text changes line attributes will remain unchanged.
+ *
+ * @param startLine first line the alignment is applied to, 0 based
+ * @param lineCount number of lines the alignment applies to.
+ * @param alignment line alignment
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the specified line range is invalid</li>
+ * </ul>
+ * @see #setAlignment(int)
+ * @since 3.2
+ */
+public void setLineAlignment(int startLine, int lineCount, int alignment) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (startLine < 0 || startLine + lineCount > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+
+ renderer.setLineAlignment(startLine, lineCount, alignment);
+ resetCache(startLine, lineCount);
+ redrawLines(startLine, lineCount, false);
+ int caretLine = getCaretLine();
+ if (startLine <= caretLine && caretLine < startLine + lineCount) {
+ setCaretLocation();
+ }
+ setAlignment();
+}
+/**
+ * Sets the background color of the specified lines.
+ * <p>
+ * The background color is drawn for the width of the widget. All
+ * line background colors are discarded when setText is called.
+ * The text background color if defined in a StyleRange overlays the
+ * line background color.
+ * </p><p>
+ * Should not be called if a LineBackgroundListener has been set since the
+ * listener maintains the line backgrounds.
+ * </p><p>
+ * All line attributes are maintained relative to the line text, not the
+ * line index that is specified in this method call.
+ * During text changes, when entire lines are inserted or removed, the line
+ * attributes that are associated with the lines after the change
+ * will "move" with their respective text. An entire line is defined as
+ * extending from the first character on a line to the last and including the
+ * line delimiter.
+ * </p><p>
+ * When two lines are joined by deleting a line delimiter, the top line
+ * attributes take precedence and the attributes of the bottom line are deleted.
+ * For all other text changes line attributes will remain unchanged.
+ * </p>
+ *
+ * @param startLine first line the color is applied to, 0 based
+ * @param lineCount number of lines the color applies to.
+ * @param background line background color
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the specified line range is invalid</li>
+ * </ul>
+ */
+public void setLineBackground(int startLine, int lineCount, Color background) {
+ checkWidget();
+ if (isListening(LineGetBackground)) return;
+ if (startLine < 0 || startLine + lineCount > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (background != null) {
+ renderer.setLineBackground(startLine, lineCount, background);
+ } else {
+ renderer.clearLineBackground(startLine, lineCount);
+ }
+ redrawLines(startLine, lineCount, false);
+}
+/**
+ * Sets the bullet of the specified lines.
+ * <p>
+ * Should not be called if a LineStyleListener has been set since the listener
+ * maintains the line attributes.
+ * </p><p>
+ * All line attributes are maintained relative to the line text, not the
+ * line index that is specified in this method call.
+ * During text changes, when entire lines are inserted or removed, the line
+ * attributes that are associated with the lines after the change
+ * will "move" with their respective text. An entire line is defined as
+ * extending from the first character on a line to the last and including the
+ * line delimiter.
+ * </p><p>
+ * When two lines are joined by deleting a line delimiter, the top line
+ * attributes take precedence and the attributes of the bottom line are deleted.
+ * For all other text changes line attributes will remain unchanged.
+ * </p>
+ *
+ * @param startLine first line the bullet is applied to, 0 based
+ * @param lineCount number of lines the bullet applies to.
+ * @param bullet line bullet
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the specified line range is invalid</li>
+ * </ul>
+ * @since 3.2
+ */
+public void setLineBullet(int startLine, int lineCount, Bullet bullet) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (startLine < 0 || startLine + lineCount > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ int oldBottom = getLinePixel(startLine + lineCount);
+ renderer.setLineBullet(startLine, lineCount, bullet);
+ resetCache(startLine, lineCount);
+ int newBottom = getLinePixel(startLine + lineCount);
+ redrawLines(startLine, lineCount, oldBottom != newBottom);
+ int caretLine = getCaretLine();
+ if (startLine <= caretLine && caretLine < startLine + lineCount) {
+ setCaretLocation();
+ }
+}
+void setVariableLineHeight () {
+ if (!fixedLineHeight) return;
+ fixedLineHeight = false;
+ renderer.calculateIdle();
+}
+/**
+ * Sets the indent of the specified lines.
+ * <p>
+ * Should not be called if a LineStyleListener has been set since the listener
+ * maintains the line attributes.
+ * </p><p>
+ * All line attributes are maintained relative to the line text, not the
+ * line index that is specified in this method call.
+ * During text changes, when entire lines are inserted or removed, the line
+ * attributes that are associated with the lines after the change
+ * will "move" with their respective text. An entire line is defined as
+ * extending from the first character on a line to the last and including the
+ * line delimiter.
+ * </p><p>
+ * When two lines are joined by deleting a line delimiter, the top line
+ * attributes take precedence and the attributes of the bottom line are deleted.
+ * For all other text changes line attributes will remain unchanged.
+ * </p>
+ *
+ * @param startLine first line the indent is applied to, 0 based
+ * @param lineCount number of lines the indent applies to.
+ * @param indent line indent
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the specified line range is invalid</li>
+ * </ul>
+ * @see #setIndent(int)
+ * @since 3.2
+ */
+public void setLineIndent(int startLine, int lineCount, int indent) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (startLine < 0 || startLine + lineCount > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ int oldBottom = getLinePixel(startLine + lineCount);
+ renderer.setLineIndent(startLine, lineCount, indent);
+ resetCache(startLine, lineCount);
+ int newBottom = getLinePixel(startLine + lineCount);
+ redrawLines(startLine, lineCount, oldBottom != newBottom);
+ int caretLine = getCaretLine();
+ if (startLine <= caretLine && caretLine < startLine + lineCount) {
+ setCaretLocation();
+ }
+}
+/**
+ * Sets the justify of the specified lines.
+ * <p>
+ * Should not be called if a LineStyleListener has been set since the listener
+ * maintains the line attributes.
+ * </p><p>
+ * All line attributes are maintained relative to the line text, not the
+ * line index that is specified in this method call.
+ * During text changes, when entire lines are inserted or removed, the line
+ * attributes that are associated with the lines after the change
+ * will "move" with their respective text. An entire line is defined as
+ * extending from the first character on a line to the last and including the
+ * line delimiter.
+ * </p><p>
+ * When two lines are joined by deleting a line delimiter, the top line
+ * attributes take precedence and the attributes of the bottom line are deleted.
+ * For all other text changes line attributes will remain unchanged.
+ * </p>
+ *
+ * @param startLine first line the justify is applied to, 0 based
+ * @param lineCount number of lines the justify applies to.
+ * @param justify true if lines should be justified
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when the specified line range is invalid</li>
+ * </ul>
+ * @see #setJustify(boolean)
+ * @since 3.2
+ */
+public void setLineJustify(int startLine, int lineCount, boolean justify) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (startLine < 0 || startLine + lineCount > content.getLineCount()) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+
+ renderer.setLineJustify(startLine, lineCount, justify);
+ resetCache(startLine, lineCount);
+ redrawLines(startLine, lineCount, false);
+ int caretLine = getCaretLine();
+ if (startLine <= caretLine && caretLine < startLine + lineCount) {
+ setCaretLocation();
+ }
+}
+/**
+ * Sets the line spacing of the widget. The line spacing applies for all lines.
+ *
+ * @param lineSpacing the line spacing
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 3.2
+ */
+public void setLineSpacing(int lineSpacing) {
+ checkWidget();
+ if (this.lineSpacing == lineSpacing || lineSpacing < 0) return;
+ this.lineSpacing = lineSpacing;
+ setVariableLineHeight();
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the color of the margins.
+ *
+ * @param color the new color (or null)
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setMarginColor(Color color) {
+ checkWidget();
+ if (color != null && color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ marginColor = color;
+ super.redraw();
+}
+/**
+ * Sets the margins.
+ *
+ * @param leftMargin the left margin.
+ * @param topMargin the top margin.
+ * @param rightMargin the right margin.
+ * @param bottomMargin the bottom margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setMargins (int leftMargin, int topMargin, int rightMargin, int bottomMargin) {
+ checkWidget();
+ this.leftMargin = Math.max(0, leftMargin);
+ this.topMargin = Math.max(0, topMargin);
+ this.rightMargin = Math.max(0, rightMargin);
+ this.bottomMargin = Math.max(0, bottomMargin);
+ resetCache(0, content.getLineCount());
+ setScrollBars(true);
+ setCaretLocation();
+ setAlignment();
+ super.redraw();
+}
+/**
+ * Flips selection anchor based on word selection direction.
+ */
+void setMouseWordSelectionAnchor() {
+ if (clickCount > 1) {
+ if (caretOffset < doubleClickSelection.x) {
+ selectionAnchor = doubleClickSelection.y;
+ } else if (caretOffset > doubleClickSelection.y) {
+ selectionAnchor = doubleClickSelection.x;
+ }
+ }
+}
+/**
+ * Sets the orientation of the receiver, which must be one
+ * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>.
+ *
+ * @param orientation new orientation style
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1.2
+ */
+public void setOrientation(int orientation) {
+ if ((orientation & (SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT)) == 0) {
+ return;
+ }
+ if ((orientation & SWT.RIGHT_TO_LEFT) != 0 && (orientation & SWT.LEFT_TO_RIGHT) != 0) {
+ return;
+ }
+ if ((orientation & SWT.RIGHT_TO_LEFT) != 0 && isMirrored()) {
+ return;
+ }
+ if ((orientation & SWT.LEFT_TO_RIGHT) != 0 && !isMirrored()) {
+ return;
+ }
+ if (!BidiUtil.setOrientation(this, orientation)) {
+ return;
+ }
+ isMirrored = (orientation & SWT.RIGHT_TO_LEFT) != 0;
+ caretDirection = SWT.NULL;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ keyActionMap.clear();
+ createKeyBindings();
+ super.redraw();
+}
+/**
+ * Sets the right margin.
+ *
+ * @param rightMargin the right margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setRightMargin (int rightMargin) {
+ checkWidget();
+ setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
+}
+/**
+ * Adjusts the maximum and the page size of the scroll bars to
+ * reflect content width/length changes.
+ *
+ * @param vertical indicates if the vertical scrollbar also needs to be set
+ */
+void setScrollBars(boolean vertical) {
+ int inactive = 1;
+ if (vertical || !isFixedLineHeight()) {
+ ScrollBar verticalBar = getVerticalBar();
+ if (verticalBar != null) {
+ int maximum = renderer.getHeight();
+ // only set the real values if the scroll bar can be used
+ // (ie. because the thumb size is less than the scroll maximum)
+ // avoids flashing on Motif, fixes 1G7RE1J and 1G5SE92
+ if (clientAreaHeight < maximum) {
+ verticalBar.setMaximum(maximum - topMargin - bottomMargin);
+ verticalBar.setThumb(clientAreaHeight - topMargin - bottomMargin);
+ verticalBar.setPageIncrement(clientAreaHeight - topMargin - bottomMargin);
+ } else if (verticalBar.getThumb() != inactive || verticalBar.getMaximum() != inactive) {
+ verticalBar.setValues(
+ verticalBar.getSelection(),
+ verticalBar.getMinimum(),
+ inactive,
+ inactive,
+ verticalBar.getIncrement(),
+ inactive);
+ }
+ }
+ }
+ ScrollBar horizontalBar = getHorizontalBar();
+ if (horizontalBar != null && horizontalBar.getVisible()) {
+ int maximum = renderer.getWidth();
+ // only set the real values if the scroll bar can be used
+ // (ie. because the thumb size is less than the scroll maximum)
+ // avoids flashing on Motif, fixes 1G7RE1J and 1G5SE92
+ if (clientAreaWidth < maximum) {
+ horizontalBar.setMaximum(maximum - leftMargin - rightMargin);
+ horizontalBar.setThumb(clientAreaWidth - leftMargin - rightMargin);
+ horizontalBar.setPageIncrement(clientAreaWidth - leftMargin - rightMargin);
+ } else if (horizontalBar.getThumb() != inactive || horizontalBar.getMaximum() != inactive) {
+ horizontalBar.setValues(
+ horizontalBar.getSelection(),
+ horizontalBar.getMinimum(),
+ inactive,
+ inactive,
+ horizontalBar.getIncrement(),
+ inactive);
+ }
+ }
+}
+/**
+ * Sets the selection to the given position and scrolls it into view. Equivalent to setSelection(start,start).
+ *
+ * @param start new caret position
+ * @see #setSelection(int,int)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when either the start or the end of the selection range is inside a
+ * multi byte line delimiter (and thus neither clearly in front of or after the line delimiter)
+ * </ul>
+ */
+public void setSelection(int start) {
+ // checkWidget test done in setSelectionRange
+ setSelection(start, start);
+}
+/**
+ * Sets the selection and scrolls it into view.
+ * <p>
+ * Indexing is zero based. Text selections are specified in terms of
+ * caret positions. In a text widget that contains N characters, there are
+ * N+1 caret positions, ranging from 0..N
+ * </p>
+ *
+ * @param point x=selection start offset, y=selection end offset
+ * The caret will be placed at the selection start when x > y.
+ * @see #setSelection(int,int)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when point is null</li>
+ * <li>ERROR_INVALID_ARGUMENT when either the start or the end of the selection range is inside a
+ * multi byte line delimiter (and thus neither clearly in front of or after the line delimiter)
+ * </ul>
+ */
+public void setSelection(Point point) {
+ checkWidget();
+ if (point == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ setSelection(point.x, point.y);
+}
+/**
+ * Sets the receiver's selection background color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.1
+ */
+public void setSelectionBackground (Color color) {
+ checkWidget ();
+ if (color != null) {
+ if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ selectionBackground = color;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the receiver's selection foreground color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ * <p>
+ * Note that this is a <em>HINT</em>. Some platforms do not allow the application
+ * to change the selection foreground color.
+ * </p>
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.1
+ */
+public void setSelectionForeground (Color color) {
+ checkWidget ();
+ if (color != null) {
+ if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ selectionForeground = color;
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the selection and scrolls it into view.
+ * <p>
+ * Indexing is zero based. Text selections are specified in terms of
+ * caret positions. In a text widget that contains N characters, there are
+ * N+1 caret positions, ranging from 0..N
+ * </p>
+ *
+ * @param start selection start offset. The caret will be placed at the
+ * selection start when start > end.
+ * @param end selection end offset
+ * @see #setSelectionRange(int,int)
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when either the start or the end of the selection range is inside a
+ * multi byte line delimiter (and thus neither clearly in front of or after the line delimiter)
+ * </ul>
+ */
+public void setSelection(int start, int end) {
+ setSelectionRange(start, end - start);
+ showSelection();
+}
+/**
+ * Sets the selection.
+ * <p>
+ * The new selection may not be visible. Call showSelection to scroll
+ * the selection into view.
+ * </p>
+ *
+ * @param start offset of the first selected character, start >= 0 must be true.
+ * @param length number of characters to select, 0 <= start + length
+ * <= getCharCount() must be true.
+ * A negative length places the caret at the selection start.
+ * @param sendEvent a Selection event is sent when set to true and when
+ * the selection is reset.
+ */
+void setSelection(int start, int length, boolean sendEvent, boolean doBlock) {
+ int end = start + length;
+ if (start > end) {
+ int temp = end;
+ end = start;
+ start = temp;
+ }
+ // is the selection range different or is the selection direction
+ // different?
+ if (selection.x != start || selection.y != end ||
+ (length > 0 && selectionAnchor != selection.x) ||
+ (length < 0 && selectionAnchor != selection.y)) {
+ if (blockSelection && doBlock) {
+ setBlockSelectionOffset(start, end, sendEvent);
+ } else {
+ clearSelection(sendEvent);
+ if (length < 0) {
+ selectionAnchor = selection.y = end;
+ selection.x = start;
+ setCaretOffset(start, PREVIOUS_OFFSET_TRAILING);
+ } else {
+ selectionAnchor = selection.x = start;
+ selection.y = end;
+ setCaretOffset(end, PREVIOUS_OFFSET_TRAILING);
+ }
+ internalRedrawRange(selection.x, selection.y - selection.x);
+ }
+ }
+}
+/**
+ * Sets the selection.
+ * <p>
+ * The new selection may not be visible. Call showSelection to scroll the selection
+ * into view. A negative length places the caret at the visual start of the selection.
+ * </p>
+ *
+ * @param start offset of the first selected character
+ * @param length number of characters to select
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT when either the start or the end of the selection range is inside a
+ * multi byte line delimiter (and thus neither clearly in front of or after the line delimiter)
+ * </ul>
+ */
+public void setSelectionRange(int start, int length) {
+ checkWidget();
+ int contentLength = getCharCount();
+ start = Math.max(0, Math.min (start, contentLength));
+ int end = start + length;
+ if (end < 0) {
+ length = -start;
+ } else {
+ if (end > contentLength) length = contentLength - start;
+ }
+ if (isLineDelimiter(start) || isLineDelimiter(start + length)) {
+ // the start offset or end offset of the selection range is inside a
+ // multi byte line delimiter. This is an illegal operation and an exception
+ // is thrown. Fixes 1GDKK3R
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ setSelection(start, length, false, true);
+ setCaretLocation();
+}
+/**
+ * Adds the specified style.
+ * <p>
+ * The new style overwrites existing styles for the specified range.
+ * Existing style ranges are adjusted if they partially overlap with
+ * the new style. To clear an individual style, call setStyleRange
+ * with a StyleRange that has null attributes.
+ * </p><p>
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param range StyleRange object containing the style information.
+ * Overwrites the old style in the given range. May be null to delete
+ * all styles.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE when the style range is outside the valid range (> getCharCount())</li>
+ * </ul>
+ */
+public void setStyleRange(StyleRange range) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (range != null) {
+ if (range.isUnstyled()) {
+ setStyleRanges(range.start, range.length, null, null, false);
+ } else {
+ setStyleRanges(range.start, 0, null, new StyleRange[]{range}, false);
+ }
+ } else {
+ setStyleRanges(0, 0, null, null, true);
+ }
+}
+/**
+ * Clears the styles in the range specified by <code>start</code> and
+ * <code>length</code> and adds the new styles.
+ * <p>
+ * The ranges array contains start and length pairs. Each pair refers to
+ * the corresponding style in the styles array. For example, the pair
+ * that starts at ranges[n] with length ranges[n+1] uses the style
+ * at styles[n/2]. The range fields within each StyleRange are ignored.
+ * If ranges or styles is null, the specified range is cleared.
+ * </p><p>
+ * Note: It is expected that the same instance of a StyleRange will occur
+ * multiple times within the styles array, reducing memory usage.
+ * </p><p>
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param start offset of first character where styles will be deleted
+ * @param length length of the range to delete styles in
+ * @param ranges the array of ranges. The ranges must not overlap and must be in order.
+ * @param styles the array of StyleRanges. The range fields within the StyleRange are unused.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when an element in the styles array is null</li>
+ * <li>ERROR_INVALID_RANGE when the number of ranges and style do not match (ranges.length * 2 == styles.length)</li>
+ * <li>ERROR_INVALID_RANGE when a range is outside the valid range (> getCharCount() or less than zero)</li>
+ * <li>ERROR_INVALID_RANGE when a range overlaps</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public void setStyleRanges(int start, int length, int[] ranges, StyleRange[] styles) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (ranges == null || styles == null) {
+ setStyleRanges(start, length, null, null, false);
+ } else {
+ setStyleRanges(start, length, ranges, styles, false);
+ }
+}
+/**
+ * Sets styles to be used for rendering the widget content.
+ * <p>
+ * All styles in the widget will be replaced with the given set of ranges and styles.
+ * The ranges array contains start and length pairs. Each pair refers to
+ * the corresponding style in the styles array. For example, the pair
+ * that starts at ranges[n] with length ranges[n+1] uses the style
+ * at styles[n/2]. The range fields within each StyleRange are ignored.
+ * If either argument is null, the styles are cleared.
+ * </p><p>
+ * Note: It is expected that the same instance of a StyleRange will occur
+ * multiple times within the styles array, reducing memory usage.
+ * </p><p>
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param ranges the array of ranges. The ranges must not overlap and must be in order.
+ * @param styles the array of StyleRanges. The range fields within the StyleRange are unused.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when an element in the styles array is null</li>
+ * <li>ERROR_INVALID_RANGE when the number of ranges and style do not match (ranges.length * 2 == styles.length)</li>
+ * <li>ERROR_INVALID_RANGE when a range is outside the valid range (> getCharCount() or less than zero)</li>
+ * <li>ERROR_INVALID_RANGE when a range overlaps</li>
+ * </ul>
+ *
+ * @since 3.2
+ */
+public void setStyleRanges(int[] ranges, StyleRange[] styles) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (ranges == null || styles == null) {
+ setStyleRanges(0, 0, null, null, true);
+ } else {
+ setStyleRanges(0, 0, ranges, styles, true);
+ }
+}
+void setStyleRanges(int start, int length, int[] ranges, StyleRange[] styles, boolean reset) {
+ int charCount = content.getCharCount();
+ int end = start + length;
+ if (start > end || start < 0) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (styles != null) {
+ if (end > charCount) {
+ SWT.error(SWT.ERROR_INVALID_RANGE);
+ }
+ if (ranges != null) {
+ if (ranges.length != styles.length << 1) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ int lastOffset = 0;
+ boolean variableHeight = false;
+ for (int i = 0; i < styles.length; i ++) {
+ if (styles[i] == null) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ int rangeStart, rangeLength;
+ if (ranges != null) {
+ rangeStart = ranges[i << 1];
+ rangeLength = ranges[(i << 1) + 1];
+ } else {
+ rangeStart = styles[i].start;
+ rangeLength = styles[i].length;
+ }
+ if (rangeLength < 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ if (!(0 <= rangeStart && rangeStart + rangeLength <= charCount)) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ if (lastOffset > rangeStart) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ variableHeight |= styles[i].isVariableHeight();
+ lastOffset = rangeStart + rangeLength;
+ }
+ if (variableHeight) setVariableLineHeight();
+ }
+ int rangeStart = start, rangeEnd = end;
+ if (styles != null && styles.length > 0) {
+ if (ranges != null) {
+ rangeStart = ranges[0];
+ rangeEnd = ranges[ranges.length - 2] + ranges[ranges.length - 1];
+ } else {
+ rangeStart = styles[0].start;
+ rangeEnd = styles[styles.length - 1].start + styles[styles.length - 1].length;
+ }
+ }
+ int expectedBottom = 0;
+ if (!isFixedLineHeight() && !reset) {
+ int lineEnd = content.getLineAtOffset(Math.max(end, rangeEnd));
+ int partialTopIndex = getPartialTopIndex();
+ int partialBottomIndex = getPartialBottomIndex();
+ if (partialTopIndex <= lineEnd && lineEnd <= partialBottomIndex) {
+ expectedBottom = getLinePixel(lineEnd + 1);
+ }
+ }
+ if (reset) {
+ renderer.setStyleRanges(null, null);
+ } else {
+ renderer.updateRanges(start, length, length);
+ }
+ if (styles != null && styles.length > 0) {
+ renderer.setStyleRanges(ranges, styles);
+ }
+ if (reset) {
+ resetCache(0, content.getLineCount());
+ super.redraw();
+ } else {
+ int lineStart = content.getLineAtOffset(Math.min(start, rangeStart));
+ int lineEnd = content.getLineAtOffset(Math.max(end, rangeEnd));
+ resetCache(lineStart, lineEnd - lineStart + 1);
+ int partialTopIndex = getPartialTopIndex();
+ int partialBottomIndex = getPartialBottomIndex();
+ if (!(lineStart > partialBottomIndex || lineEnd < partialTopIndex)) {
+ int top = 0;
+ int bottom = clientAreaHeight;
+ if (partialTopIndex <= lineStart && lineStart <= partialBottomIndex) {
+ top = Math.max(0, getLinePixel(lineStart));
+ }
+ if (partialTopIndex <= lineEnd && lineEnd <= partialBottomIndex) {
+ bottom = getLinePixel(lineEnd + 1);
+ }
+ if (!isFixedLineHeight() && bottom != expectedBottom) {
+ bottom = clientAreaHeight;
+ }
+ super.redraw(0, top, clientAreaWidth, bottom - top, false);
+ }
+ }
+ setCaretLocation();
+ doMouseLinkCursor();
+}
+/**
+ * Sets styles to be used for rendering the widget content. All styles
+ * in the widget will be replaced with the given set of styles.
+ * <p>
+ * Note: Because a StyleRange includes the start and length, the
+ * same instance cannot occur multiple times in the array of styles.
+ * If the same style attributes, such as font and color, occur in
+ * multiple StyleRanges, <code>setStyleRanges(int[], StyleRange[])</code>
+ * can be used to share styles and reduce memory usage.
+ * </p><p>
+ * Should not be called if a LineStyleListener has been set since the
+ * listener maintains the styles.
+ * </p>
+ *
+ * @param ranges StyleRange objects containing the style information.
+ * The ranges should not overlap. The style rendering is undefined if
+ * the ranges do overlap. Must not be null. The styles need to be in order.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when the list of ranges is null</li>
+ * <li>ERROR_INVALID_RANGE when the last of the style ranges is outside the valid range (> getCharCount())</li>
+ * </ul>
+ *
+ * @see #setStyleRanges(int[], StyleRange[])
+ */
+public void setStyleRanges(StyleRange[] ranges) {
+ checkWidget();
+ if (isListening(LineGetStyle)) return;
+ if (ranges == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ setStyleRanges(0, 0, null, ranges, true);
+}
+/**
+ * Sets the tab width.
+ *
+ * @param tabs tab width measured in characters.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setTabs(int tabs) {
+ checkWidget();
+ tabLength = tabs;
+ renderer.setFont(null, tabs);
+ resetCache(0, content.getLineCount());
+ setCaretLocation();
+ super.redraw();
+}
+/**
+ * Sets the widget content.
+ * If the widget has the SWT.SINGLE style and "text" contains more than
+ * one line, only the first line is rendered but the text is stored
+ * unchanged. A subsequent call to getText will return the same text
+ * that was set.
+ * <p>
+ * <b>Note:</b> Only a single line of text should be set when the SWT.SINGLE
+ * style is used.
+ * </p>
+ *
+ * @param text new widget content. Replaces existing content. Line styles
+ * that were set using StyledText API are discarded. The
+ * current selection is also discarded.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when string is null</li>
+ * </ul>
+ */
+public void setText(String text) {
+ checkWidget();
+ if (text == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ Event event = new Event();
+ event.start = 0;
+ event.end = getCharCount();
+ event.text = text;
+ event.doit = true;
+ notifyListeners(SWT.Verify, event);
+ if (event.doit) {
+ StyledTextEvent styledTextEvent = null;
+ if (isListening(ExtendedModify)) {
+ styledTextEvent = new StyledTextEvent(content);
+ styledTextEvent.start = event.start;
+ styledTextEvent.end = event.start + event.text.length();
+ styledTextEvent.text = content.getTextRange(event.start, event.end - event.start);
+ }
+ content.setText(event.text);
+ notifyListeners(SWT.Modify, event);
+ if (styledTextEvent != null) {
+ notifyListeners(ExtendedModify, styledTextEvent);
+ }
+ }
+}
+/**
+ * Sets the text limit to the specified number of characters.
+ * <p>
+ * The text limit specifies the amount of text that
+ * the user can type into the widget.
+ * </p>
+ *
+ * @param limit the new text limit.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_CANNOT_BE_ZERO when limit is 0</li>
+ * </ul>
+ */
+public void setTextLimit(int limit) {
+ checkWidget();
+ if (limit == 0) {
+ SWT.error(SWT.ERROR_CANNOT_BE_ZERO);
+ }
+ textLimit = limit;
+}
+/**
+ * Sets the top index. Do nothing if there is no text set.
+ * <p>
+ * The top index is the index of the line that is currently at the top
+ * of the widget. The top index changes when the widget is scrolled.
+ * Indexing starts from zero.
+ * Note: The top index is reset to 0 when new text is set in the widget.
+ * </p>
+ *
+ * @param topIndex new top index. Must be between 0 and
+ * getLineCount() - fully visible lines per page. If no lines are fully
+ * visible the maximum value is getLineCount() - 1. An out of range
+ * index will be adjusted accordingly.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setTopIndex(int topIndex) {
+ checkWidget();
+ if (getCharCount() == 0) {
+ return;
+ }
+ int lineCount = content.getLineCount(), pixel;
+ if (isFixedLineHeight()) {
+ int pageSize = Math.max(1, Math.min(lineCount, getLineCountWhole()));
+ if (topIndex < 0) {
+ topIndex = 0;
+ } else if (topIndex > lineCount - pageSize) {
+ topIndex = lineCount - pageSize;
+ }
+ pixel = getLinePixel(topIndex);
+ } else {
+ topIndex = Math.max(0, Math.min(lineCount - 1, topIndex));
+ pixel = getLinePixel(topIndex);
+ if (pixel > 0) {
+ pixel = getAvailableHeightBellow(pixel);
+ } else {
+ pixel = getAvailableHeightAbove(pixel);
+ }
+ }
+ scrollVertical(pixel, true);
+}
+/**
+ * Sets the top margin.
+ *
+ * @param topMargin the top margin.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.5
+ */
+public void setTopMargin (int topMargin) {
+ checkWidget();
+ setMargins(leftMargin, topMargin, rightMargin, bottomMargin);
+}
+/**
+ * Sets the top pixel offset. Do nothing if there is no text set.
+ * <p>
+ * The top pixel offset is the vertical pixel offset of the widget. The
+ * widget is scrolled so that the given pixel position is at the top.
+ * The top index is adjusted to the corresponding top line.
+ * Note: The top pixel is reset to 0 when new text is set in the widget.
+ * </p>
+ *
+ * @param pixel new top pixel offset. Must be between 0 and
+ * (getLineCount() - visible lines per page) / getLineHeight()). An out
+ * of range offset will be adjusted accordingly.
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * @since 2.0
+ */
+public void setTopPixel(int pixel) {
+ checkWidget();
+ if (getCharCount() == 0) {
+ return;
+ }
+ if (pixel < 0) pixel = 0;
+ int lineCount = content.getLineCount();
+ int height = clientAreaHeight - topMargin - bottomMargin;
+ int verticalOffset = getVerticalScrollOffset();
+ if (isFixedLineHeight()) {
+ int maxTopPixel = Math.max(0, lineCount * getVerticalIncrement() - height);
+ if (pixel > maxTopPixel) pixel = maxTopPixel;
+ pixel -= verticalOffset;
+ } else {
+ pixel -= verticalOffset;
+ if (pixel > 0) {
+ pixel = getAvailableHeightBellow(pixel);
+ }
+ }
+ scrollVertical(pixel, true);
+}
+/**
+ * Sets whether the widget wraps lines.
+ * <p>
+ * This overrides the creation style bit SWT.WRAP.
+ * </p>
+ *
+ * @param wrap true=widget wraps lines, false=widget does not wrap lines
+ * @since 2.0
+ */
+public void setWordWrap(boolean wrap) {
+ checkWidget();
+ if ((getStyle() & SWT.SINGLE) != 0) return;
+ if (wordWrap == wrap) return;
+ if (wordWrap && blockSelection) setBlockSelection(false);
+ wordWrap = wrap;
+ setVariableLineHeight();
+ resetCache(0, content.getLineCount());
+ horizontalScrollOffset = 0;
+ ScrollBar horizontalBar = getHorizontalBar();
+ if (horizontalBar != null) {
+ horizontalBar.setVisible(!wordWrap);
+ }
+ setScrollBars(true);
+ setCaretLocation();
+ super.redraw();
+}
+boolean showLocation(Rectangle rect, boolean scrollPage) {
+ boolean scrolled = false;
+ if (rect.y < topMargin) {
+ scrolled = scrollVertical(rect.y - topMargin, true);
+ } else if (rect.y + rect.height > clientAreaHeight - bottomMargin) {
+ if (clientAreaHeight - topMargin - bottomMargin <= 0) {
+ scrolled = scrollVertical(rect.y - topMargin, true);
+ } else {
+ scrolled = scrollVertical(rect.y + rect.height - (clientAreaHeight - bottomMargin), true);
+ }
+ }
+ int width = clientAreaWidth - rightMargin - leftMargin;
+ if (width > 0) {
+ int minScroll = scrollPage ? width / 4 : 0;
+ if (rect.x < leftMargin) {
+ int scrollWidth = Math.max(leftMargin - rect.x, minScroll);
+ int maxScroll = horizontalScrollOffset;
+ scrolled = scrollHorizontal(-Math.min(maxScroll, scrollWidth), true);
+ } else if (rect.x + rect.width > (clientAreaWidth - rightMargin)) {
+ int scrollWidth = Math.max(rect.x + rect.width - (clientAreaWidth - rightMargin), minScroll);
+ int maxScroll = renderer.getWidth() - horizontalScrollOffset - clientAreaWidth;
+ scrolled = scrollHorizontal(Math.min(maxScroll, scrollWidth), true);
+ }
+ }
+ return scrolled;
+}
+/**
+ * Sets the caret location and scrolls the caret offset into view.
+ */
+void showCaret() {
+ Rectangle bounds = getBoundsAtOffset(caretOffset);
+ if (!showLocation(bounds, true)) {
+ setCaretLocation();
+ }
+}
+/**
+ * Scrolls the selection into view.
+ * <p>
+ * The end of the selection will be scrolled into view.
+ * Note that if a right-to-left selection exists, the end of the selection is
+ * the visual beginning of the selection (i.e., where the caret is located).
+ * </p>
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void showSelection() {
+ checkWidget();
+ // is selection from right-to-left?
+ boolean rightToLeft = caretOffset == selection.x;
+ int startOffset, endOffset;
+ if (rightToLeft) {
+ startOffset = selection.y;
+ endOffset = selection.x;
+ } else {
+ startOffset = selection.x;
+ endOffset = selection.y;
+ }
+
+ Rectangle startBounds = getBoundsAtOffset(startOffset);
+ Rectangle endBounds = getBoundsAtOffset(endOffset);
+
+ // can the selection be fully displayed within the widget's visible width?
+ int w = clientAreaWidth - leftMargin - rightMargin;
+ boolean selectionFits = rightToLeft ? startBounds.x - endBounds.x <= w : endBounds.x - startBounds.x <= w;
+ if (selectionFits) {
+ // show as much of the selection as possible by first showing
+ // the start of the selection
+ if (showLocation(startBounds, false)) {
+ // endX value could change if showing startX caused a scroll to occur
+ endBounds = getBoundsAtOffset(endOffset);
+ }
+ // the character at endOffset is not part of the selection
+ endBounds.width = endOffset == caretOffset ? getCaretWidth() : 0;
+ showLocation(endBounds, false);
+ } else {
+ // just show the end of the selection since the selection start
+ // will not be visible
+ showLocation(endBounds, true);
+ }
+}
+void updateCaretVisibility() {
+ Caret caret = getCaret();
+ if (caret != null) {
+ if (blockSelection && blockXLocation != -1) {
+ caret.setVisible(false);
+ } else {
+ Point location = caret.getLocation();
+ Point size = caret.getSize();
+ boolean visible =
+ topMargin <= location.y + size.y && location.y <= clientAreaHeight - bottomMargin &&
+ leftMargin <= location.x + size.x && location.x <= clientAreaWidth - rightMargin;
+ caret.setVisible(visible);
+ }
+ }
+}
+/**
+ * Updates the selection and caret position depending on the text change.
+ * <p>
+ * If the selection intersects with the replaced text, the selection is
+ * reset and the caret moved to the end of the new text.
+ * If the selection is behind the replaced text it is moved so that the
+ * same text remains selected. If the selection is before the replaced text
+ * it is left unchanged.
+ * </p>
+ *
+ * @param startOffset offset of the text change
+ * @param replacedLength length of text being replaced
+ * @param newLength length of new text
+ */
+void updateSelection(int startOffset, int replacedLength, int newLength) {
+ if (selection.y <= startOffset) {
+ // selection ends before text change
+ if (wordWrap) setCaretLocation();
+ return;
+ }
+ if (selection.x < startOffset) {
+ // clear selection fragment before text change
+ internalRedrawRange(selection.x, startOffset - selection.x);
+ }
+ if (selection.y > startOffset + replacedLength && selection.x < startOffset + replacedLength) {
+ // clear selection fragment after text change.
+ // do this only when the selection is actually affected by the
+ // change. Selection is only affected if it intersects the change (1GDY217).
+ int netNewLength = newLength - replacedLength;
+ int redrawStart = startOffset + newLength;
+ internalRedrawRange(redrawStart, selection.y + netNewLength - redrawStart);
+ }
+ if (selection.y > startOffset && selection.x < startOffset + replacedLength) {
+ // selection intersects replaced text. set caret behind text change
+ setSelection(startOffset + newLength, 0, true, false);
+ } else {
+ // move selection to keep same text selected
+ setSelection(selection.x + newLength - replacedLength, selection.y - selection.x, true, false);
+ }
+ setCaretLocation();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextContent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextContent.java
new file mode 100755
index 0000000000..0e6728cf34
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextContent.java
@@ -0,0 +1,207 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+/**
+ * Clients may implement the StyledTextContent interface to provide a
+ * custom store for the StyledText widget content. The StyledText widget
+ * interacts with its StyledTextContent in order to access and update
+ * the text that is being displayed and edited in the widget.
+ * A custom content implementation can be set in the widget using the
+ * StyledText.setContent API.
+ */
+public interface StyledTextContent {
+
+/**
+ * Called by StyledText to add itself as an Observer to content changes.
+ * See TextChangeListener for a description of the listener methods that
+ * are called when text changes occur.
+ * <p>
+ *
+ * @param listener the listener
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void addTextChangeListener(TextChangeListener listener);
+
+/**
+ * Return the number of characters in the content.
+ * <p>
+ *
+ * @return the number of characters in the content.
+ */
+public int getCharCount();
+
+/**
+ * Return the line at the given line index without delimiters.
+ * <p>
+ *
+ * @param lineIndex index of the line to return. Does not include
+ * delimiters of preceding lines. Index 0 is the first line of the
+ * content.
+ * @return the line text without delimiters
+ */
+public String getLine(int lineIndex);
+
+/**
+ * Return the line index at the given character offset.
+ * <p>
+ *
+ * @param offset offset of the line to return. The first character of the
+ * document is at offset 0. An offset of getLength() is valid and should
+ * answer the number of lines.
+ * @return the line index. The first line is at index 0. If the character
+ * at offset is a delimiter character, answer the line index of the line
+ * that is delimited.
+ * For example, if text = "\r\n\r\n", and delimiter = "\r\n", then:
+ * <ul>
+ * <li>getLineAtOffset(0) == 0
+ * <li>getLineAtOffset(1) == 0
+ * <li>getLineAtOffset(2) == 1
+ * <li>getLineAtOffset(3) == 1
+ * <li>getLineAtOffset(4) == 2
+ * </ul>
+ */
+public int getLineAtOffset(int offset);
+
+/**
+ * Return the number of lines. Should answer 1 when no text is specified.
+ * The StyledText widget relies on this behavior for drawing the cursor.
+ * <p>
+ *
+ * @return the number of lines. For example:
+ * <ul>
+ * <li> text value ==> getLineCount
+ * <li> null ==> 1
+ * <li> "" ==> 1
+ * <li> "a\n" ==> 2
+ * <li> "\n\n" ==> 3
+ * </ul>
+ */
+public int getLineCount();
+
+/**
+ * Return the line delimiter that should be used by the StyledText
+ * widget when inserting new lines. New lines entered using key strokes
+ * and paste operations use this line delimiter.
+ * Implementors may use System.getProperty("line.separator") to return
+ * the platform line delimiter.
+ * <p>
+ *
+ * @return the line delimiter that should be used by the StyledText widget
+ * when inserting new lines.
+ */
+public String getLineDelimiter();
+
+/**
+ * Return the character offset of the first character of the given line.
+ * <p>
+ * <b>NOTE:</b> When there is no text (i.e., no lines), getOffsetAtLine(0)
+ * is a valid call that should return 0.
+ * </p>
+ *
+ * @param lineIndex index of the line. The first line is at index 0.
+ * @return offset offset of the first character of the line. The first
+ * character of the document is at offset 0. The return value should
+ * include line delimiters.
+ * For example, if text = "\r\ntest\r\n" and delimiter = "\r\n", then:
+ * <ul>
+ * <li>getOffsetAtLine(0) == 0
+ * <li>getOffsetAtLine(1) == 2
+ * <li>getOffsetAtLine(2) == 8
+ * </ul>
+ */
+public int getOffsetAtLine(int lineIndex);
+
+/**
+ * Returns a string representing the content at the given range.
+ * <p>
+ *
+ * @param start the start offset of the text to return. Offset 0 is the
+ * first character of the document.
+ * @param length the length of the text to return
+ * @return the text at the given range
+ */
+public String getTextRange(int start, int length);
+
+/**
+ * Remove the specified text changed listener.
+ * <p>
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT when listener is null</li>
+ * </ul>
+ */
+public void removeTextChangeListener(TextChangeListener listener);
+
+/**
+ * Replace the text with "newText" starting at position "start"
+ * for a length of "replaceLength".
+ * <p>
+ * Implementors have to notify the TextChangeListeners that were added
+ * using <code>addTextChangeListener</code> before and after the content
+ * is changed. A <code>TextChangingEvent</code> has to be sent to the
+ * textChanging method before the content is changed and a
+ * <code>TextChangedEvent</code> has to be sent to the textChanged method
+ * after the content has changed.
+ * The text change that occurs after the <code>TextChangingEvent</code>
+ * has been sent has to be consistent with the data provided in the
+ * <code>TextChangingEvent</code>.
+ * This data will be cached by the widget and will be used when the
+ * <code>TextChangedEvent</code> is received.
+ * <p>
+ * The <code>TextChangingEvent</code> should be set as follows:
+ * <ul>
+ * <li>event.start = start of the replaced text
+ * <li>event.newText = text that is going to be inserted or empty String
+ * if no text will be inserted
+ * <li>event.replaceCharCount = length of text that is going to be replaced
+ * <li>event.newCharCount = length of text that is going to be inserted
+ * <li>event.replaceLineCount = number of lines that are going to be replaced
+ * <li>event.newLineCount = number of new lines that are going to be inserted
+ * </ul>
+ * <b>NOTE:</b> newLineCount is the number of inserted lines and replaceLineCount
+ * is the number of deleted lines based on the change that occurs visually.
+ * For example:
+ * <ul>
+ * <li>(replaceText, newText) ==> (replaceLineCount, newLineCount)
+ * <li>("", "\n") ==> (0, 1)
+ * <li>("\n\n", "a") ==> (2, 0)
+ * <li>("a", "\n\n") ==> (0, 2)
+ * <li>("\n", "") ==> (1, 0)
+ * </ul>
+ * </p>
+ *
+ * @param start start offset of text to replace, none of the offsets include
+ * delimiters of preceding lines, offset 0 is the first character of the
+ * document
+ * @param replaceLength length of text to replace
+ * @param text text to replace
+ * @see TextChangeListener
+ */
+public void replaceTextRange(int start, int replaceLength, String text);
+
+/**
+ * Set text to "text".
+ * Implementors have to send a <code>TextChangedEvent</code> to the
+ * textSet method of the TextChangeListeners that were added using
+ * <code>addTextChangeListener</code>.
+ * <p>
+ *
+ * @param text the new text
+ * @see TextChangeListener
+ */
+public void setText(String text);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextDropTargetEffect.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextDropTargetEffect.java
new file mode 100644
index 0000000000..ba6c2ff230
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextDropTargetEffect.java
@@ -0,0 +1,242 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.dnd.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This adapter class provides a default drag under effect (eg. select and scroll)
+ * when a drag occurs over a <code>StyledText</code>.
+ *
+ * <p>Classes that wish to provide their own drag under effect for a <code>StyledText</code>
+ * can extend this class, override the <code>StyledTextDropTargetEffect.dragOver</code>
+ * method and override any other applicable methods in <code>StyledTextDropTargetEffect</code> to
+ * display their own drag under effect.</p>
+ *
+ * Subclasses that override any methods of this class should call the corresponding
+ * <code>super</code> method to get the default drag under effect implementation.
+ *
+ * <p>The feedback value is either one of the FEEDBACK constants defined in
+ * class <code>DND</code> which is applicable to instances of this class,
+ * or it must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>DND</code> effect constants.
+ * </p>
+ * <p>
+ * <dl>
+ * <dt><b>Feedback:</b></dt>
+ * <dd>FEEDBACK_SELECT, FEEDBACK_SCROLL</dd>
+ * </dl>
+ * </p>
+ *
+ * @see DropTargetAdapter
+ * @see DropTargetEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.3
+ */
+public class StyledTextDropTargetEffect extends DropTargetEffect {
+ static final int CARET_WIDTH = 2;
+ static final int SCROLL_HYSTERESIS = 100; // milli seconds
+ static final int SCROLL_TOLERANCE = 20; // pixels
+
+ int currentOffset = -1;
+ long scrollBeginTime;
+ int scrollX = -1, scrollY = -1;
+ Listener paintListener;
+
+ /**
+ * Creates a new <code>StyledTextDropTargetEffect</code> to handle the drag under effect on the specified
+ * <code>StyledText</code>.
+ *
+ * @param styledText the <code>StyledText</code> over which the user positions the cursor to drop the data
+ */
+ public StyledTextDropTargetEffect(StyledText styledText) {
+ super(styledText);
+ paintListener = new Listener () {
+ public void handleEvent (Event event) {
+ if (currentOffset != -1) {
+ StyledText text = (StyledText) getControl();
+ Point position = text.getLocationAtOffset(currentOffset);
+ int height = text.getLineHeight(currentOffset);
+ event.gc.setBackground(event.display.getSystemColor (SWT.COLOR_BLACK));
+ event.gc.fillRectangle(position.x, position.y, CARET_WIDTH, height);
+ }
+ }
+ };
+ }
+
+ /**
+ * This implementation of <code>dragEnter</code> provides a default drag under effect
+ * for the feedback specified in <code>event.feedback</code>.
+ *
+ * For additional information see <code>DropTargetAdapter.dragEnter</code>.
+ *
+ * Subclasses that override this method should call <code>super.dragEnter(event)</code>
+ * to get the default drag under effect implementation.
+ *
+ * @param event the information associated with the drag start event
+ *
+ * @see DropTargetAdapter
+ * @see DropTargetEvent
+ */
+ public void dragEnter(DropTargetEvent event) {
+ currentOffset = -1;
+ scrollBeginTime = 0;
+ scrollX = -1;
+ scrollY = -1;
+ getControl().removeListener(SWT.Paint, paintListener);
+ getControl().addListener (SWT.Paint, paintListener);
+ }
+
+ /**
+ * This implementation of <code>dragLeave</code> provides a default drag under effect
+ * for the feedback specified in <code>event.feedback</code>.
+ *
+ * For additional information see <code>DropTargetAdapter.dragLeave</code>.
+ *
+ * Subclasses that override this method should call <code>super.dragLeave(event)</code>
+ * to get the default drag under effect implementation.
+ *
+ * @param event the information associated with the drag leave event
+ *
+ * @see DropTargetAdapter
+ * @see DropTargetEvent
+ */
+ public void dragLeave(DropTargetEvent event) {
+ StyledText text = (StyledText) getControl();
+ if (currentOffset != -1) {
+ refreshCaret(text, currentOffset, -1);
+ }
+ text.removeListener(SWT.Paint, paintListener);
+ scrollBeginTime = 0;
+ scrollX = -1;
+ scrollY = -1;
+ }
+
+ /**
+ * This implementation of <code>dragOver</code> provides a default drag under effect
+ * for the feedback specified in <code>event.feedback</code>.
+ *
+ * For additional information see <code>DropTargetAdapter.dragOver</code>.
+ *
+ * Subclasses that override this method should call <code>super.dragOver(event)</code>
+ * to get the default drag under effect implementation.
+ *
+ * @param event the information associated with the drag over event
+ *
+ * @see DropTargetAdapter
+ * @see DropTargetEvent
+ * @see DND#FEEDBACK_SELECT
+ * @see DND#FEEDBACK_SCROLL
+ */
+ public void dragOver(DropTargetEvent event) {
+ int effect = event.feedback;
+ StyledText text = (StyledText) getControl();
+
+ Point pt = text.getDisplay().map(null, text, event.x, event.y);
+ if ((effect & DND.FEEDBACK_SCROLL) == 0) {
+ scrollBeginTime = 0;
+ scrollX = scrollY = -1;
+ } else {
+ if (text.getCharCount() == 0) {
+ scrollBeginTime = 0;
+ scrollX = scrollY = -1;
+ } else {
+ if (scrollX != -1 && scrollY != -1 && scrollBeginTime != 0 &&
+ (pt.x >= scrollX && pt.x <= (scrollX + SCROLL_TOLERANCE) ||
+ pt.y >= scrollY && pt.y <= (scrollY + SCROLL_TOLERANCE))) {
+ if (System.currentTimeMillis() >= scrollBeginTime) {
+ Rectangle area = text.getClientArea();
+ GC gc = new GC(text);
+ FontMetrics fm = gc.getFontMetrics();
+ gc.dispose();
+ int charWidth = fm.getAverageCharWidth();
+ int scrollAmount = 10*charWidth;
+ if (pt.x < area.x + 3*charWidth) {
+ int leftPixel = text.getHorizontalPixel();
+ text.setHorizontalPixel(leftPixel - scrollAmount);
+ }
+ if (pt.x > area.width - 3*charWidth) {
+ int leftPixel = text.getHorizontalPixel();
+ text.setHorizontalPixel(leftPixel + scrollAmount);
+ }
+ int lineHeight = text.getLineHeight();
+ if (pt.y < area.y + lineHeight) {
+ int topPixel = text.getTopPixel();
+ text.setTopPixel(topPixel - lineHeight);
+ }
+ if (pt.y > area.height - lineHeight) {
+ int topPixel = text.getTopPixel();
+ text.setTopPixel(topPixel + lineHeight);
+ }
+ scrollBeginTime = 0;
+ scrollX = scrollY = -1;
+ }
+ } else {
+ scrollBeginTime = System.currentTimeMillis() + SCROLL_HYSTERESIS;
+ scrollX = pt.x;
+ scrollY = pt.y;
+ }
+ }
+ }
+
+ if ((effect & DND.FEEDBACK_SELECT) != 0) {
+ int[] trailing = new int [1];
+ int newOffset = text.getOffsetAtPoint(pt.x, pt.y, trailing, false);
+ newOffset += trailing [0];
+ if (newOffset != currentOffset) {
+ refreshCaret(text, currentOffset, newOffset);
+ currentOffset = newOffset;
+ }
+ }
+ }
+
+ void refreshCaret(StyledText text, int oldOffset, int newOffset) {
+ if (oldOffset != newOffset) {
+ if (oldOffset != -1) {
+ Point oldPos = text.getLocationAtOffset(oldOffset);
+ int oldHeight = text.getLineHeight(oldOffset);
+ text.redraw (oldPos.x, oldPos.y, CARET_WIDTH, oldHeight, false);
+ }
+ if (newOffset != -1) {
+ Point newPos = text.getLocationAtOffset(newOffset);
+ int newHeight = text.getLineHeight(newOffset);
+ text.redraw (newPos.x, newPos.y, CARET_WIDTH, newHeight, false);
+ }
+ }
+ }
+
+ /**
+ * This implementation of <code>dropAccept</code> provides a default drag under effect
+ * for the feedback specified in <code>event.feedback</code>.
+ *
+ * For additional information see <code>DropTargetAdapter.dropAccept</code>.
+ *
+ * Subclasses that override this method should call <code>super.dropAccept(event)</code>
+ * to get the default drag under effect implementation.
+ *
+ * @param event the information associated with the drop accept event
+ *
+ * @see DropTargetAdapter
+ * @see DropTargetEvent
+ */
+ public void dropAccept(DropTargetEvent event) {
+ if (currentOffset != -1) {
+ StyledText text = (StyledText) getControl();
+ text.setSelection(currentOffset);
+ currentOffset = -1;
+ }
+ }
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextEvent.java
new file mode 100755
index 0000000000..84e3331af8
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextEvent.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ *
+ */
+class StyledTextEvent extends Event {
+ // used by LineStyleEvent
+ int[] ranges;
+ StyleRange[] styles;
+ int alignment;
+ int indent;
+ boolean justify;
+ Bullet bullet;
+ int bulletIndex;
+ // used by LineBackgroundEvent
+ Color lineBackground;
+ // used by BidiSegmentEvent
+ int[] segments;
+ // used by TextChangedEvent
+ int replaceCharCount;
+ int newCharCount;
+ int replaceLineCount;
+ int newLineCount;
+ // used by PaintObjectEvent
+ int x;
+ int y;
+ int ascent;
+ int descent;
+ StyleRange style;
+
+StyledTextEvent (StyledTextContent content) {
+ super();
+ data = content;
+}
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextListener.java
new file mode 100755
index 0000000000..166e911bce
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextListener.java
@@ -0,0 +1,101 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.internal.SWTEventListener;
+
+class StyledTextListener extends TypedListener {
+/**
+ */
+StyledTextListener(SWTEventListener listener) {
+ super(listener);
+}
+/**
+ * Process StyledText events by invoking the event's handler.
+ *
+ * @param e the event to handle
+ */
+public void handleEvent(Event e) {
+
+ switch (e.type) {
+ case StyledText.ExtendedModify:
+ ExtendedModifyEvent extendedModifyEvent = new ExtendedModifyEvent((StyledTextEvent) e);
+ ((ExtendedModifyListener) eventListener).modifyText(extendedModifyEvent);
+ break;
+ case StyledText.LineGetBackground:
+ LineBackgroundEvent lineBgEvent = new LineBackgroundEvent((StyledTextEvent) e);
+ ((LineBackgroundListener) eventListener).lineGetBackground(lineBgEvent);
+ ((StyledTextEvent) e).lineBackground = lineBgEvent.lineBackground;
+ break;
+ case StyledText.LineGetSegments:
+ BidiSegmentEvent segmentEvent = new BidiSegmentEvent((StyledTextEvent) e);
+ ((BidiSegmentListener) eventListener).lineGetSegments(segmentEvent);
+ ((StyledTextEvent) e).segments = segmentEvent.segments;
+ break;
+ case StyledText.LineGetStyle:
+ LineStyleEvent lineStyleEvent = new LineStyleEvent((StyledTextEvent) e);
+ ((LineStyleListener) eventListener).lineGetStyle(lineStyleEvent);
+ ((StyledTextEvent) e).ranges = lineStyleEvent.ranges;
+ ((StyledTextEvent) e).styles = lineStyleEvent.styles;
+ ((StyledTextEvent) e).alignment = lineStyleEvent.alignment;
+ ((StyledTextEvent) e).indent = lineStyleEvent.indent;
+ ((StyledTextEvent) e).justify = lineStyleEvent.justify;
+ ((StyledTextEvent) e).bullet = lineStyleEvent.bullet;
+ ((StyledTextEvent) e).bulletIndex = lineStyleEvent.bulletIndex;
+ break;
+ case StyledText.PaintObject:
+ PaintObjectEvent paintObjectEvent = new PaintObjectEvent((StyledTextEvent) e);
+ ((PaintObjectListener) eventListener).paintObject(paintObjectEvent);
+ break;
+ case StyledText.VerifyKey:
+ VerifyEvent verifyEvent = new VerifyEvent(e);
+ ((VerifyKeyListener) eventListener).verifyKey(verifyEvent);
+ e.doit = verifyEvent.doit;
+ break;
+ case StyledText.TextChanged: {
+ TextChangedEvent textChangedEvent = new TextChangedEvent((StyledTextContent) e.data);
+ ((TextChangeListener) eventListener).textChanged(textChangedEvent);
+ break;
+ }
+ case StyledText.TextChanging:
+ TextChangingEvent textChangingEvent = new TextChangingEvent((StyledTextContent) e.data, (StyledTextEvent) e);
+ ((TextChangeListener) eventListener).textChanging(textChangingEvent);
+ break;
+ case StyledText.TextSet: {
+ TextChangedEvent textChangedEvent = new TextChangedEvent((StyledTextContent) e.data);
+ ((TextChangeListener) eventListener).textSet(textChangedEvent);
+ break;
+ }
+ case StyledText.WordNext: {
+ MovementEvent wordBoundaryEvent = new MovementEvent((StyledTextEvent) e);
+ ((MovementListener) eventListener).getNextOffset(wordBoundaryEvent);
+ ((StyledTextEvent) e).end = wordBoundaryEvent.newOffset;
+ break;
+ }
+ case StyledText.WordPrevious: {
+ MovementEvent wordBoundaryEvent = new MovementEvent((StyledTextEvent) e);
+ ((MovementListener) eventListener).getPreviousOffset(wordBoundaryEvent);
+ ((StyledTextEvent) e).end = wordBoundaryEvent.newOffset;
+ break;
+ }
+ case StyledText.CaretMoved: {
+ CaretEvent caretEvent = new CaretEvent((StyledTextEvent) e);
+ ((CaretListener) eventListener).caretMoved(caretEvent);
+ ((StyledTextEvent) e).end = caretEvent.caretOffset;
+ break;
+ }
+ }
+}
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextPrintOptions.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextPrintOptions.java
new file mode 100644
index 0000000000..0daad1f85e
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextPrintOptions.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+/**
+ * Use StyledTextPrintOptions to specify printing options for the
+ * StyledText.print(Printer, StyledTextPrintOptions) API.
+ * <p>
+ * The following example prints a right aligned page number in the footer,
+ * sets the job name to "Example" and prints line background colors but no other
+ * formatting:
+ * </p>
+ * <pre>
+ * StyledTextPrintOptions options = new StyledTextPrintOptions();
+ * options.footer = "\t\t&lt;page&gt;";
+ * options.jobName = "Example";
+ * options.printLineBackground = true;
+ *
+ * Runnable runnable = styledText.print(new Printer(), options);
+ * runnable.run();
+ * </pre>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 2.1
+ */
+public class StyledTextPrintOptions {
+ /**
+ * Page number placeholder constant for use in <code>header</code>
+ * and <code>footer</code>. Value is <code>&lt;page&gt;</code>
+ */
+ public static final String PAGE_TAG = "<page>";
+ /**
+ * Separator constant for use in <code>header</code> and
+ * <code>footer</code>. Value is <code>\t</code>
+ */
+ public static final String SEPARATOR = "\t";
+ /**
+ * Formatted text to print in the header of each page.
+ * <p>"left '\t' center '\t' right"</p>
+ * <p>left, center, right = &lt;page&gt; | #CDATA</p>
+ * <p>Header and footer are defined as three separate regions for arbitrary
+ * text or the page number placeholder &lt;page&gt;
+ * (<code>StyledTextPrintOptions.PAGE_TAG</code>). The three regions are
+ * left aligned, centered and right aligned. They are separated by a tab
+ * character (<code>StyledTextPrintOptions.SEPARATOR</code>).
+ */
+ public String header = null;
+ /**
+ * Formatted text to print in the footer of each page.
+ * <p>"left '\t' center '\t' right"</p>
+ * <p>left, center, right = &lt;page&gt; | #CDATA</p>
+ * <p>Header and footer are defined as three separate regions for arbitrary
+ * text or the page number placeholder &lt;page&gt;
+ * (<code>StyledTextPrintOptions.PAGE_TAG</code>). The three regions are
+ * left aligned, centered and right aligned. They are separated by a tab
+ * character (<code>StyledTextPrintOptions.SEPARATOR</code>).
+ */
+ public String footer = null;
+ /**
+ * Name of the print job.
+ */
+ public String jobName = null;
+
+ /**
+ * Print the text foreground color. Default value is <code>false</code>.
+ */
+ public boolean printTextForeground = false;
+ /**
+ * Print the text background color. Default value is <code>false</code>.
+ */
+ public boolean printTextBackground = false;
+ /**
+ * Print the font styles. Default value is <code>false</code>.
+ */
+ public boolean printTextFontStyle = false;
+ /**
+ * Print the line background color. Default value is <code>false</code>.
+ */
+ public boolean printLineBackground = false;
+
+ /**
+ * Print line numbers. Default value is <code>false</code>.
+ *
+ * @since 3.3
+ */
+ public boolean printLineNumbers = false;
+
+ /**
+ * Labels used for printing line numbers.
+ *
+ * @since 3.4
+ */
+ public String[] lineLabels = null;
+
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextRenderer.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextRenderer.java
new file mode 100644
index 0000000000..86dcf4d905
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/StyledTextRenderer.java
@@ -0,0 +1,1568 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * A StyledTextRenderer renders the content of a StyledText widget.
+ * This class can be used to render to the display or to a printer.
+ */
+class StyledTextRenderer {
+ Device device;
+ StyledText styledText;
+ StyledTextContent content;
+
+ /* Font info */
+ Font regularFont, boldFont, italicFont, boldItalicFont;
+ int tabWidth;
+ int ascent, descent;
+ int averageCharWidth;
+
+ /* Line data */
+ int topIndex = -1;
+ TextLayout[] layouts;
+ int lineCount;
+ int[] lineWidth;
+ int[] lineHeight;
+ LineInfo[] lines;
+ int maxWidth;
+ int maxWidthLineIndex;
+ boolean idleRunning;
+
+ /* Bullet */
+ Bullet[] bullets;
+ int[] bulletsIndices;
+ int[] redrawLines;
+
+ /* Style data */
+ int[] ranges;
+ int styleCount;
+ StyleRange[] styles;
+ StyleRange[] stylesSet;
+ int stylesSetCount = 0;
+ boolean hasLinks, fixedPitch;
+ final static int BULLET_MARGIN = 8;
+
+ final static boolean COMPACT_STYLES = true;
+ final static boolean MERGE_STYLES = true;
+
+ final static int GROW = 32;
+ final static int IDLE_TIME = 50;
+ final static int CACHE_SIZE = 128;
+
+ final static int BACKGROUND = 1 << 0;
+ final static int ALIGNMENT = 1 << 1;
+ final static int INDENT = 1 << 2;
+ final static int JUSTIFY = 1 << 3;
+ final static int SEGMENTS = 1 << 5;
+
+ static class LineInfo {
+ int flags;
+ Color background;
+ int alignment;
+ int indent;
+ boolean justify;
+ int[] segments;
+
+ public LineInfo() {
+ }
+ public LineInfo(LineInfo info) {
+ if (info != null) {
+ flags = info.flags;
+ background = info.background;
+ alignment = info.alignment;
+ indent = info.indent;
+ justify = info.justify;
+ segments = info.segments;
+ }
+ }
+ }
+
+StyledTextRenderer(Device device, StyledText styledText) {
+ this.device = device;
+ this.styledText = styledText;
+}
+int addMerge(int[] mergeRanges, StyleRange[] mergeStyles, int mergeCount, int modifyStart, int modifyEnd) {
+ int rangeCount = styleCount << 1;
+ StyleRange endStyle = null;
+ int endStart = 0, endLength = 0;
+ if (modifyEnd < rangeCount) {
+ endStyle = styles[modifyEnd >> 1];
+ endStart = ranges[modifyEnd];
+ endLength = ranges[modifyEnd + 1];
+ }
+ int grow = mergeCount - (modifyEnd - modifyStart);
+ if (rangeCount + grow >= ranges.length) {
+ int[] tmpRanges = new int[ranges.length + grow + (GROW << 1)];
+ System.arraycopy(ranges, 0, tmpRanges, 0, modifyStart);
+ StyleRange[] tmpStyles = new StyleRange[styles.length + (grow >> 1) + GROW];
+ System.arraycopy(styles, 0, tmpStyles, 0, modifyStart >> 1);
+ if (rangeCount > modifyEnd) {
+ System.arraycopy(ranges, modifyEnd, tmpRanges, modifyStart + mergeCount, rangeCount - modifyEnd);
+ System.arraycopy(styles, modifyEnd >> 1, tmpStyles, (modifyStart + mergeCount) >> 1, styleCount - (modifyEnd >> 1));
+ }
+ ranges = tmpRanges;
+ styles = tmpStyles;
+ } else {
+ if (rangeCount > modifyEnd) {
+ System.arraycopy(ranges, modifyEnd, ranges, modifyStart + mergeCount, rangeCount - modifyEnd);
+ System.arraycopy(styles, modifyEnd >> 1, styles, (modifyStart + mergeCount) >> 1, styleCount - (modifyEnd >> 1));
+ }
+ }
+ if (MERGE_STYLES) {
+ int j = modifyStart;
+ for (int i = 0; i < mergeCount; i += 2) {
+ if (j > 0 && ranges[j - 2] + ranges[j - 1] == mergeRanges[i] && mergeStyles[i >> 1].similarTo(styles[(j - 2) >> 1])) {
+ ranges[j - 1] += mergeRanges[i + 1];
+ } else {
+ styles[j >> 1] = mergeStyles[i >> 1];
+ ranges[j++] = mergeRanges[i];
+ ranges[j++] = mergeRanges[i + 1];
+ }
+ }
+ if (endStyle != null && ranges[j - 2] + ranges[j - 1] == endStart && endStyle.similarTo(styles[(j - 2) >> 1])) {
+ ranges[j - 1] += endLength;
+ modifyEnd += 2;
+ mergeCount += 2;
+ }
+ if (rangeCount > modifyEnd) {
+ System.arraycopy(ranges, modifyStart + mergeCount, ranges, j, rangeCount - modifyEnd);
+ System.arraycopy(styles, (modifyStart + mergeCount) >> 1, styles, j >> 1, styleCount - (modifyEnd >> 1));
+ }
+ grow = (j - modifyStart) - (modifyEnd - modifyStart);
+ } else {
+ System.arraycopy(mergeRanges, 0, ranges, modifyStart, mergeCount);
+ System.arraycopy(mergeStyles, 0, styles, modifyStart >> 1, mergeCount >> 1);
+ }
+ styleCount += grow >> 1;
+ return grow;
+}
+int addMerge(StyleRange[] mergeStyles, int mergeCount, int modifyStart, int modifyEnd) {
+ int grow = mergeCount - (modifyEnd - modifyStart);
+ StyleRange endStyle = null;
+ if (modifyEnd < styleCount) endStyle = styles[modifyEnd];
+ if (styleCount + grow >= styles.length) {
+ StyleRange[] tmpStyles = new StyleRange[styles.length + grow + GROW];
+ System.arraycopy(styles, 0, tmpStyles, 0, modifyStart);
+ if (styleCount > modifyEnd) {
+ System.arraycopy(styles, modifyEnd, tmpStyles, modifyStart + mergeCount, styleCount - modifyEnd);
+ }
+ styles = tmpStyles;
+ } else {
+ if (styleCount > modifyEnd) {
+ System.arraycopy(styles, modifyEnd, styles, modifyStart + mergeCount, styleCount - modifyEnd);
+ }
+ }
+ if (MERGE_STYLES) {
+ int j = modifyStart;
+ for (int i = 0; i < mergeCount; i++) {
+ StyleRange newStyle = mergeStyles[i], style;
+ if (j > 0 && (style = styles[j - 1]).start + style.length == newStyle.start && newStyle.similarTo(style)) {
+ style.length += newStyle.length;
+ } else {
+ styles[j++] = newStyle;
+ }
+ }
+ StyleRange style = styles[j - 1];
+ if (endStyle != null && style.start + style.length == endStyle.start && endStyle.similarTo(style)) {
+ style.length += endStyle.length;
+ modifyEnd++;
+ mergeCount++;
+ }
+ if (styleCount > modifyEnd) {
+ System.arraycopy(styles, modifyStart + mergeCount, styles, j, styleCount - modifyEnd);
+ }
+ grow = (j - modifyStart) - (modifyEnd - modifyStart);
+ } else {
+ System.arraycopy(mergeStyles, 0, styles, modifyStart, mergeCount);
+ }
+ styleCount += grow;
+ return grow;
+}
+void calculate(int startLine, int lineCount) {
+ int endLine = startLine + lineCount;
+ if (startLine < 0 || endLine > lineWidth.length) {
+ return;
+ }
+ int hTrim = styledText.leftMargin + styledText.rightMargin + styledText.getCaretWidth();
+ for (int i = startLine; i < endLine; i++) {
+ if (lineWidth[i] == -1 || lineHeight[i] == -1) {
+ TextLayout layout = getTextLayout(i);
+ Rectangle rect = layout.getBounds();
+ lineWidth[i] = rect.width + hTrim;
+ lineHeight[i] = rect.height;
+ disposeTextLayout(layout);
+ }
+ if (lineWidth[i] > maxWidth) {
+ maxWidth = lineWidth[i];
+ maxWidthLineIndex = i;
+ }
+ }
+}
+void calculateClientArea () {
+ int index = styledText.getTopIndex();
+ int lineCount = content.getLineCount();
+ int height = styledText.getClientArea().height;
+ int y = 0;
+ while (height > y && lineCount > index) {
+ calculate(index, 1);
+ y += lineHeight[index++];
+ }
+}
+void calculateIdle () {
+ if (idleRunning) return;
+ Runnable runnable = new Runnable() {
+ public void run() {
+ if (styledText == null) return;
+ int i;
+ long start = System.currentTimeMillis();
+ for (i = 0; i < lineCount; i++) {
+ if (lineHeight[i] == -1 || lineWidth[i] == -1) {
+ calculate(i, 1);
+ if (System.currentTimeMillis() - start > IDLE_TIME) break;
+ }
+ }
+ if (i < lineCount) {
+ Display display = styledText.getDisplay();
+ display.asyncExec(this);
+ } else {
+ idleRunning = false;
+ styledText.setScrollBars(true);
+ ScrollBar bar = styledText.getVerticalBar();
+ if (bar != null) {
+ bar.setSelection(styledText.getVerticalScrollOffset());
+ }
+ }
+ }
+ };
+ Display display = styledText.getDisplay();
+ display.asyncExec(runnable);
+ idleRunning = true;
+}
+void clearLineBackground(int startLine, int count) {
+ if (lines == null) return;
+ for (int i = startLine; i < startLine + count; i++) {
+ LineInfo info = lines[i];
+ if (info != null) {
+ info.flags &= ~BACKGROUND;
+ info.background = null;
+ if (info.flags == 0) lines[i] = null;
+ }
+ }
+}
+void clearLineStyle(int startLine, int count) {
+ if (lines == null) return;
+ for (int i = startLine; i < startLine + count; i++) {
+ LineInfo info = lines[i];
+ if (info != null) {
+ info.flags &= ~(ALIGNMENT | INDENT | JUSTIFY);
+ if (info.flags == 0) lines[i] = null;
+ }
+ }
+}
+void copyInto(StyledTextRenderer renderer) {
+ if (ranges != null) {
+ int[] newRanges = renderer.ranges = new int[styleCount << 1];
+ System.arraycopy(ranges, 0, newRanges, 0, newRanges.length);
+ }
+ if (styles != null) {
+ StyleRange[] newStyles = renderer.styles = new StyleRange[styleCount];
+ for (int i = 0; i < newStyles.length; i++) {
+ newStyles[i] = (StyleRange)styles[i].clone();
+ }
+ renderer.styleCount = styleCount;
+ }
+ if (lines != null) {
+ LineInfo[] newLines = renderer.lines = new LineInfo[lineCount];
+ for (int i = 0; i < newLines.length; i++) {
+ newLines[i] = new LineInfo(lines[i]);
+ }
+ renderer.lineCount = lineCount;
+ }
+}
+void dispose() {
+ if (boldFont != null) boldFont.dispose();
+ if (italicFont != null) italicFont.dispose();
+ if (boldItalicFont != null) boldItalicFont.dispose();
+ boldFont = italicFont = boldItalicFont = null;
+ reset();
+ content = null;
+ device = null;
+ styledText = null;
+}
+void disposeTextLayout (TextLayout layout) {
+ if (layouts != null) {
+ for (int i = 0; i < layouts.length; i++) {
+ if (layouts[i] == layout) return;
+ }
+ }
+ layout.dispose();
+}
+void drawBullet(Bullet bullet, GC gc, int paintX, int paintY, int index, int lineAscent, int lineDescent) {
+ StyleRange style = bullet.style;
+ GlyphMetrics metrics = style.metrics;
+ Color color = style.foreground;
+ if (color != null) gc.setForeground(color);
+ if ((bullet.type & ST.BULLET_DOT) != 0 && StyledText.IS_MOTIF) {
+ int size = Math.max(4, (lineAscent + lineDescent) / 4);
+ if ((size & 1) == 0) size++;
+ if (color == null) {
+ Display display = styledText.getDisplay();
+ color = display.getSystemColor(SWT.COLOR_BLACK);
+ }
+ gc.setBackground(color);
+ int x = paintX + Math.max(0, metrics.width - size - BULLET_MARGIN);
+ gc.fillArc(x, paintY + size, size + 1, size + 1, 0, 360);
+ return;
+ }
+ Font font = style.font;
+ if (font != null) gc.setFont(font);
+ String string = "";
+ int type = bullet.type & (ST.BULLET_DOT|ST.BULLET_NUMBER|ST.BULLET_LETTER_LOWER|ST.BULLET_LETTER_UPPER);
+ switch (type) {
+ case ST.BULLET_DOT: string = "\u2022"; break;
+ case ST.BULLET_NUMBER: string = String.valueOf(index); break;
+ case ST.BULLET_LETTER_LOWER: string = String.valueOf((char) (index % 26 + 97)); break;
+ case ST.BULLET_LETTER_UPPER: string = String.valueOf((char) (index % 26 + 65)); break;
+ }
+ if ((bullet.type & ST.BULLET_TEXT) != 0) string += bullet.text;
+ Display display = styledText.getDisplay();
+ TextLayout layout = new TextLayout(display);
+ layout.setText(string);
+ layout.setAscent(lineAscent);
+ layout.setDescent(lineDescent);
+ style = (StyleRange)style.clone();
+ style.metrics = null;
+ if (style.font == null) style.font = getFont(style.fontStyle);
+ layout.setStyle(style, 0, string.length());
+ int x = paintX + Math.max(0, metrics.width - layout.getBounds().width - BULLET_MARGIN);
+ layout.draw(gc, x, paintY);
+ layout.dispose();
+}
+int drawLine(int lineIndex, int paintX, int paintY, GC gc, Color widgetBackground, Color widgetForeground) {
+ TextLayout layout = getTextLayout(lineIndex);
+ String line = content.getLine(lineIndex);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ int lineLength = line.length();
+ Point selection = styledText.getSelection();
+ int selectionStart = selection.x - lineOffset;
+ int selectionEnd = selection.y - lineOffset;
+ if (styledText.getBlockSelection()) {
+ selectionStart = selectionEnd = 0;
+ }
+ Rectangle client = styledText.getClientArea();
+ Color lineBackground = getLineBackground(lineIndex, null);
+ StyledTextEvent event = styledText.getLineBackgroundData(lineOffset, line);
+ if (event != null && event.lineBackground != null) lineBackground = event.lineBackground;
+ int height = layout.getBounds().height;
+ if (lineBackground != null) {
+ gc.setBackground(lineBackground);
+ gc.fillRectangle(client.x, paintY, client.width, height);
+ } else {
+ gc.setBackground(widgetBackground);
+ styledText.drawBackground(gc, client.x, paintY, client.width, height);
+ }
+ gc.setForeground(widgetForeground);
+ if (selectionStart == selectionEnd || (selectionEnd <= 0 && selectionStart > lineLength - 1)) {
+ layout.draw(gc, paintX, paintY);
+ } else {
+ int start = Math.max(0, selectionStart);
+ int end = Math.min(lineLength, selectionEnd);
+ Color selectionFg = styledText.getSelectionForeground();
+ Color selectionBg = styledText.getSelectionBackground();
+ int flags;
+ if ((styledText.getStyle() & SWT.FULL_SELECTION) != 0) {
+ flags = SWT.FULL_SELECTION;
+ } else {
+ flags = SWT.DELIMITER_SELECTION;
+ }
+ if (selectionStart <= lineLength && lineLength < selectionEnd ) {
+ flags |= SWT.LAST_LINE_SELECTION;
+ }
+ layout.draw(gc, paintX, paintY, start, end - 1, selectionFg, selectionBg, flags);
+ }
+
+ // draw objects
+ Bullet bullet = null;
+ int bulletIndex = -1;
+ if (bullets != null) {
+ if (bulletsIndices != null) {
+ int index = lineIndex - topIndex;
+ if (0 <= index && index < CACHE_SIZE) {
+ bullet = bullets[index];
+ bulletIndex = bulletsIndices[index];
+ }
+ } else {
+ for (int i = 0; i < bullets.length; i++) {
+ bullet = bullets[i];
+ bulletIndex = bullet.indexOf(lineIndex);
+ if (bulletIndex != -1) break;
+ }
+ }
+ }
+ if (bulletIndex != -1 && bullet != null) {
+ FontMetrics metrics = layout.getLineMetrics(0);
+ int lineAscent = metrics.getAscent() + metrics.getLeading();
+ if (bullet.type == ST.BULLET_CUSTOM) {
+ bullet.style.start = lineOffset;
+ styledText.paintObject(gc, paintX, paintY, lineAscent, metrics.getDescent(), bullet.style, bullet, bulletIndex);
+ } else {
+ drawBullet(bullet, gc, paintX, paintY, bulletIndex, lineAscent, metrics.getDescent());
+ }
+ }
+ TextStyle[] styles = layout.getStyles();
+ int[] ranges = null;
+ for (int i = 0; i < styles.length; i++) {
+ if (styles[i].metrics != null) {
+ if (ranges == null) ranges = layout.getRanges();
+ int start = ranges[i << 1];
+ int length = ranges[(i << 1) + 1] - start;
+ Point point = layout.getLocation(start, false);
+ FontMetrics metrics = layout.getLineMetrics(layout.getLineIndex(start));
+ StyleRange style = (StyleRange)((StyleRange)styles[i]).clone();
+ style.start = start + lineOffset;
+ style.length = length;
+ int lineAscent = metrics.getAscent() + metrics.getLeading();
+ styledText.paintObject(gc, point.x + paintX, point.y + paintY, lineAscent, metrics.getDescent(), style, null, 0);
+ }
+ }
+ disposeTextLayout(layout);
+ return height;
+}
+int getBaseline() {
+ return ascent;
+}
+Font getFont(int style) {
+ switch (style) {
+ case SWT.BOLD:
+ if (boldFont != null) return boldFont;
+ return boldFont = new Font(device, getFontData(style));
+ case SWT.ITALIC:
+ if (italicFont != null) return italicFont;
+ return italicFont = new Font(device, getFontData(style));
+ case SWT.BOLD | SWT.ITALIC:
+ if (boldItalicFont != null) return boldItalicFont;
+ return boldItalicFont = new Font(device, getFontData(style));
+ default:
+ return regularFont;
+ }
+}
+FontData[] getFontData(int style) {
+ FontData[] fontDatas = regularFont.getFontData();
+ for (int i = 0; i < fontDatas.length; i++) {
+ fontDatas[i].setStyle(style);
+ }
+ return fontDatas;
+}
+int getHeight () {
+ int defaultLineHeight = getLineHeight();
+ if (styledText.isFixedLineHeight()) {
+ return lineCount * defaultLineHeight + styledText.topMargin + styledText.bottomMargin;
+ }
+ int totalHeight = 0;
+ int width = styledText.getWrapWidth();
+ for (int i = 0; i < lineCount; i++) {
+ int height = lineHeight[i];
+ if (height == -1) {
+ if (width > 0) {
+ int length = content.getLine(i).length();
+ height = ((length * averageCharWidth / width) + 1) * defaultLineHeight;
+ } else {
+ height = defaultLineHeight;
+ }
+ }
+ totalHeight += height;
+ }
+ return totalHeight + styledText.topMargin + styledText.bottomMargin;
+}
+boolean hasLink(int offset) {
+ if (offset == -1) return false;
+ int lineIndex = content.getLineAtOffset(offset);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ String line = content.getLine(lineIndex);
+ StyledTextEvent event = styledText.getLineStyleData(lineOffset, line);
+ if (event != null) {
+ StyleRange[] styles = event.styles;
+ if (styles != null) {
+ int[] ranges = event.ranges;
+ if (ranges != null) {
+ for (int i = 0; i < ranges.length; i+=2) {
+ if (ranges[i] <= offset && offset < ranges[i] + ranges[i+1] && styles[i >> 1].underline && styles[i >> 1].underlineStyle == SWT.UNDERLINE_LINK) {
+ return true;
+ }
+ }
+ } else {
+ for (int i = 0; i < styles.length; i++) {
+ if (styles[i].start <= offset && offset < styles[i].start + styles[i].length && styles[i >> 1].underline && styles[i >> 1].underlineStyle == SWT.UNDERLINE_LINK) {
+ return true;
+ }
+ }
+ }
+ }
+ } else {
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ int index = getRangeIndex(offset, -1, rangeCount);
+ if (index >= rangeCount) return false;
+ int rangeStart = ranges[index];
+ int rangeLength = ranges[index + 1];
+ StyleRange rangeStyle = styles[index >> 1];
+ if (rangeStart <= offset && offset < rangeStart + rangeLength && rangeStyle.underline && rangeStyle.underlineStyle == SWT.UNDERLINE_LINK) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+int getLineAlignment(int index, int defaultAlignment) {
+ if (lines == null) return defaultAlignment;
+ LineInfo info = lines[index];
+ if (info != null && (info.flags & ALIGNMENT) != 0) {
+ return info.alignment;
+ }
+ return defaultAlignment;
+}
+Color getLineBackground(int index, Color defaultBackground) {
+ if (lines == null) return defaultBackground;
+ LineInfo info = lines[index];
+ if (info != null && (info.flags & BACKGROUND) != 0) {
+ return info.background;
+ }
+ return defaultBackground;
+}
+Bullet getLineBullet (int index, Bullet defaultBullet) {
+ if (bullets == null) return defaultBullet;
+ if (bulletsIndices != null) return defaultBullet;
+ for (int i = 0; i < bullets.length; i++) {
+ Bullet bullet = bullets[i];
+ if (bullet.indexOf(index) != -1) return bullet;
+ }
+ return defaultBullet;
+}
+int getLineHeight() {
+ return ascent + descent;
+}
+int getLineHeight(int lineIndex) {
+ if (lineHeight[lineIndex] == -1) {
+ calculate(lineIndex, 1);
+ }
+ return lineHeight[lineIndex];
+}
+int getLineIndent(int index, int defaultIndent) {
+ if (lines == null) return defaultIndent;
+ LineInfo info = lines[index];
+ if (info != null && (info.flags & INDENT) != 0) {
+ return info.indent;
+ }
+ return defaultIndent;
+}
+boolean getLineJustify(int index, boolean defaultJustify) {
+ if (lines == null) return defaultJustify;
+ LineInfo info = lines[index];
+ if (info != null && (info.flags & JUSTIFY) != 0) {
+ return info.justify;
+ }
+ return defaultJustify;
+}
+int[] getLineSegments(int index, int[] defaultSegments) {
+ if (lines == null) return defaultSegments;
+ LineInfo info = lines[index];
+ if (info != null && (info.flags & SEGMENTS) != 0) {
+ return info.segments;
+ }
+ return defaultSegments;
+}
+int getRangeIndex(int offset, int low, int high) {
+ if (styleCount == 0) return 0;
+ if (ranges != null) {
+ while (high - low > 2) {
+ int index = ((high + low) / 2) / 2 * 2;
+ int end = ranges[index] + ranges[index + 1];
+ if (end > offset) {
+ high = index;
+ } else {
+ low = index;
+ }
+ }
+ } else {
+ while (high - low > 1) {
+ int index = ((high + low) / 2);
+ int end = styles[index].start + styles[index].length;
+ if (end > offset) {
+ high = index;
+ } else {
+ low = index;
+ }
+ }
+ }
+ return high;
+}
+int[] getRanges(int start, int length) {
+ if (length == 0) return null;
+ int[] newRanges;
+ int end = start + length - 1;
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ int rangeStart = getRangeIndex(start, -1, rangeCount);
+ if (rangeStart >= rangeCount) return null;
+ if (ranges[rangeStart] > end) return null;
+ int rangeEnd = Math.min(rangeCount - 2, getRangeIndex(end, rangeStart - 1, rangeCount));
+ if (ranges[rangeEnd] > end) rangeEnd = Math.max(rangeStart, rangeEnd - 2);
+ newRanges = new int[rangeEnd - rangeStart + 2];
+ System.arraycopy(ranges, rangeStart, newRanges, 0, newRanges.length);
+ } else {
+ int rangeStart = getRangeIndex(start, -1, styleCount);
+ if (rangeStart >= styleCount) return null;
+ if (styles[rangeStart].start > end) return null;
+ int rangeEnd = Math.min(styleCount - 1, getRangeIndex(end, rangeStart - 1, styleCount));
+ if (styles[rangeEnd].start > end) rangeEnd = Math.max(rangeStart, rangeEnd - 1);
+ newRanges = new int[(rangeEnd - rangeStart + 1) << 1];
+ for (int i = rangeStart, j = 0; i <= rangeEnd; i++, j += 2) {
+ StyleRange style = styles[i];
+ newRanges[j] = style.start;
+ newRanges[j + 1] = style.length;
+ }
+ }
+ if (start > newRanges[0]) {
+ newRanges[1] = newRanges[0] + newRanges[1] - start;
+ newRanges[0] = start;
+ }
+ if (end < newRanges[newRanges.length - 2] + newRanges[newRanges.length - 1] - 1) {
+ newRanges[newRanges.length - 1] = end - newRanges[newRanges.length - 2] + 1;
+ }
+ return newRanges;
+}
+StyleRange[] getStyleRanges(int start, int length, boolean includeRanges) {
+ if (length == 0) return null;
+ StyleRange[] newStyles;
+ int end = start + length - 1;
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ int rangeStart = getRangeIndex(start, -1, rangeCount);
+ if (rangeStart >= rangeCount) return null;
+ if (ranges[rangeStart] > end) return null;
+ int rangeEnd = Math.min(rangeCount - 2, getRangeIndex(end, rangeStart - 1, rangeCount));
+ if (ranges[rangeEnd] > end) rangeEnd = Math.max(rangeStart, rangeEnd - 2);
+ newStyles = new StyleRange[((rangeEnd - rangeStart) >> 1) + 1];
+ if (includeRanges) {
+ for (int i = rangeStart, j = 0; i <= rangeEnd; i += 2, j++) {
+ newStyles[j] = (StyleRange)styles[i >> 1].clone();
+ newStyles[j].start = ranges[i];
+ newStyles[j].length = ranges[i + 1];
+ }
+ } else {
+ System.arraycopy(styles, rangeStart >> 1, newStyles, 0, newStyles.length);
+ }
+ } else {
+ int rangeStart = getRangeIndex(start, -1, styleCount);
+ if (rangeStart >= styleCount) return null;
+ if (styles[rangeStart].start > end) return null;
+ int rangeEnd = Math.min(styleCount - 1, getRangeIndex(end, rangeStart - 1, styleCount));
+ if (styles[rangeEnd].start > end) rangeEnd = Math.max(rangeStart, rangeEnd - 1);
+ newStyles = new StyleRange[rangeEnd - rangeStart + 1];
+ System.arraycopy(styles, rangeStart, newStyles, 0, newStyles.length);
+ }
+ if (includeRanges || ranges == null) {
+ StyleRange style = newStyles[0];
+ if (start > style.start) {
+ newStyles[0] = style = (StyleRange)style.clone();
+ style.length = style.start + style.length - start;
+ style.start = start;
+ }
+ style = newStyles[newStyles.length - 1];
+ if (end < style.start + style.length - 1) {
+ newStyles[newStyles.length - 1] = style = (StyleRange)style.clone();
+ style.length = end - style.start + 1;
+ }
+ }
+ return newStyles;
+}
+StyleRange getStyleRange(StyleRange style) {
+ if (style.underline && style.underlineStyle == SWT.UNDERLINE_LINK) hasLinks = true;
+ if (style.start == 0 && style.length == 0 && style.fontStyle == SWT.NORMAL) return style;
+ StyleRange clone = (StyleRange)style.clone();
+ clone.start = clone.length = 0;
+ clone.fontStyle = SWT.NORMAL;
+ if (clone.font == null) clone.font = getFont(style.fontStyle);
+ return clone;
+}
+TextLayout getTextLayout(int lineIndex) {
+ return getTextLayout(lineIndex, styledText.getOrientation(), styledText.getWrapWidth(), styledText.lineSpacing);
+}
+TextLayout getTextLayout(int lineIndex, int orientation, int width, int lineSpacing) {
+ TextLayout layout = null;
+ if (styledText != null) {
+ int topIndex = styledText.topIndex > 0 ? styledText.topIndex - 1 : 0;
+ if (layouts == null || topIndex != this.topIndex) {
+ TextLayout[] newLayouts = new TextLayout[CACHE_SIZE];
+ if (layouts != null) {
+ for (int i = 0; i < layouts.length; i++) {
+ if (layouts[i] != null) {
+ int layoutIndex = (i + this.topIndex) - topIndex;
+ if (0 <= layoutIndex && layoutIndex < newLayouts.length) {
+ newLayouts[layoutIndex] = layouts[i];
+ } else {
+ layouts[i].dispose();
+ }
+ }
+ }
+ }
+ if (bullets != null && bulletsIndices != null && topIndex != this.topIndex) {
+ int delta = topIndex - this.topIndex;
+ if (delta > 0) {
+ if (delta < bullets.length) {
+ System.arraycopy(bullets, delta, bullets, 0, bullets.length - delta);
+ System.arraycopy(bulletsIndices, delta, bulletsIndices, 0, bulletsIndices.length - delta);
+ }
+ int startIndex = Math.max(0, bullets.length - delta);
+ for (int i = startIndex; i < bullets.length; i++) bullets[i] = null;
+ } else {
+ if (-delta < bullets.length) {
+ System.arraycopy(bullets, 0, bullets, -delta, bullets.length + delta);
+ System.arraycopy(bulletsIndices, 0, bulletsIndices, -delta, bulletsIndices.length + delta);
+ }
+ int endIndex = Math.min(bullets.length, -delta);
+ for (int i = 0; i < endIndex; i++) bullets[i] = null;
+ }
+ }
+ this.topIndex = topIndex;
+ layouts = newLayouts;
+ }
+ if (layouts != null) {
+ int layoutIndex = lineIndex - topIndex;
+ if (0 <= layoutIndex && layoutIndex < layouts.length) {
+ layout = layouts[layoutIndex];
+ if (layout != null) {
+ if (lineWidth[lineIndex] != -1) return layout;
+ } else {
+ layout = layouts[layoutIndex] = new TextLayout(device);
+ }
+ }
+ }
+ }
+ if (layout == null) layout = new TextLayout(device);
+ String line = content.getLine(lineIndex);
+ int lineOffset = content.getOffsetAtLine(lineIndex);
+ int[] segments = null;
+ int indent = 0;
+ int alignment = SWT.LEFT;
+ boolean justify = false;
+ Bullet bullet = null;
+ int[] ranges = null;
+ StyleRange[] styles = null;
+ int rangeStart = 0, styleCount = 0;
+ StyledTextEvent event = null;
+ if (styledText != null) {
+ event = styledText.getLineStyleData(lineOffset, line);
+ segments = styledText.getBidiSegments(lineOffset, line);
+ indent = styledText.indent;
+ alignment = styledText.alignment;
+ justify = styledText.justify;
+ }
+ if (event != null) {
+ indent = event.indent;
+ alignment = event.alignment;
+ justify = event.justify;
+ bullet = event.bullet;
+ ranges = event.ranges;
+ styles = event.styles;
+ if (styles != null) {
+ styleCount = styles.length;
+ if (styledText.isFixedLineHeight()) {
+ for (int i = 0; i < styleCount; i++) {
+ if (styles[i].isVariableHeight()) {
+ styledText.verticalScrollOffset = -1;
+ styledText.setVariableLineHeight();
+ styledText.redraw();
+ break;
+ }
+ }
+ }
+ }
+ if (bullets == null || bulletsIndices == null) {
+ bullets = new Bullet[CACHE_SIZE];
+ bulletsIndices = new int[CACHE_SIZE];
+ }
+ int index = lineIndex - topIndex;
+ if (0 <= index && index < CACHE_SIZE) {
+ bullets[index] = bullet;
+ bulletsIndices[index] = event.bulletIndex;
+ }
+ } else {
+ if (lines != null) {
+ LineInfo info = lines[lineIndex];
+ if (info != null) {
+ if ((info.flags & INDENT) != 0) indent = info.indent;
+ if ((info.flags & ALIGNMENT) != 0) alignment = info.alignment;
+ if ((info.flags & JUSTIFY) != 0) justify = info.justify;
+ if ((info.flags & SEGMENTS) != 0) segments = info.segments;
+ }
+ }
+ if (bulletsIndices != null) {
+ bullets = null;
+ bulletsIndices = null;
+ }
+ if (bullets != null) {
+ for (int i = 0; i < bullets.length; i++) {
+ if (bullets[i].indexOf(lineIndex) != -1) {
+ bullet = bullets[i];
+ break;
+ }
+ }
+ }
+ ranges = this.ranges;
+ styles = this.styles;
+ styleCount = this.styleCount;
+ if (ranges != null) {
+ rangeStart = getRangeIndex(lineOffset, -1, styleCount << 1);
+ } else {
+ rangeStart = getRangeIndex(lineOffset, -1, styleCount);
+ }
+ }
+ if (bullet != null) {
+ StyleRange style = bullet.style;
+ GlyphMetrics metrics = style.metrics;
+ indent += metrics.width;
+ }
+ layout.setFont(regularFont);
+ layout.setAscent(ascent);
+ layout.setDescent(descent);
+ layout.setText(line);
+ layout.setOrientation(orientation);
+ layout.setSegments(segments);
+ layout.setWidth(width);
+ layout.setSpacing(lineSpacing);
+ layout.setTabs(new int[]{tabWidth});
+ layout.setIndent(indent);
+ layout.setAlignment(alignment);
+ layout.setJustify(justify);
+
+ int lastOffset = 0;
+ int length = line.length();
+ if (styles != null) {
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ for (int i = rangeStart; i < rangeCount; i += 2) {
+ int start, end;
+ if (lineOffset > ranges[i]) {
+ start = 0;
+ end = Math.min (length, ranges[i + 1] - lineOffset + ranges[i]);
+ } else {
+ start = ranges[i] - lineOffset;
+ end = Math.min(length, start + ranges[i + 1]);
+ }
+ if (start >= length) break;
+ if (lastOffset < start) {
+ layout.setStyle(null, lastOffset, start - 1);
+ }
+ layout.setStyle(getStyleRange(styles[i >> 1]), start, end);
+ lastOffset = Math.max(lastOffset, end);
+ }
+ } else {
+ for (int i = rangeStart; i < styleCount; i++) {
+ int start, end;
+ if (lineOffset > styles[i].start) {
+ start = 0;
+ end = Math.min (length, styles[i].length - lineOffset + styles[i].start);
+ } else {
+ start = styles[i].start - lineOffset;
+ end = Math.min(length, start + styles[i].length);
+ }
+ if (start >= length) break;
+ if (lastOffset < start) {
+ layout.setStyle(null, lastOffset, start - 1);
+ }
+ layout.setStyle(getStyleRange(styles[i]), start, end);
+ lastOffset = Math.max(lastOffset, end);
+ }
+ }
+ }
+ if (lastOffset < length) layout.setStyle(null, lastOffset, length);
+ if (styledText != null && styledText.ime != null) {
+ IME ime = styledText.ime;
+ int compositionOffset = ime.getCompositionOffset();
+ if (compositionOffset != -1) {
+ int commitCount = ime.getCommitCount();
+ int compositionLength = ime.getText().length();
+ if (compositionLength != commitCount) {
+ int compositionLine = content.getLineAtOffset(compositionOffset);
+ if (compositionLine == lineIndex) {
+ int[] imeRanges = ime.getRanges();
+ TextStyle[] imeStyles = ime.getStyles();
+ if (imeRanges.length > 0) {
+ for (int i = 0; i < imeStyles.length; i++) {
+ int start = imeRanges[i*2] - lineOffset;
+ int end = imeRanges[i*2+1] - lineOffset;
+ TextStyle imeStyle = imeStyles[i], userStyle;
+ for (int j = start; j <= end; j++) {
+ userStyle = layout.getStyle(j);
+ if (userStyle == null && j > 0) userStyle = layout.getStyle(j - 1);
+ if (userStyle == null && j + 1 < length) userStyle = layout.getStyle(j + 1);
+ if (userStyle == null) {
+ layout.setStyle(imeStyle, j, j);
+ } else {
+ TextStyle newStyle = new TextStyle(imeStyle);
+ if (newStyle.font == null) newStyle.font = userStyle.font;
+ if (newStyle.foreground == null) newStyle.foreground = userStyle.foreground;
+ if (newStyle.background == null) newStyle.background = userStyle.background;
+ layout.setStyle(newStyle, j, j);
+ }
+ }
+ }
+ } else {
+ int start = compositionOffset - lineOffset;
+ int end = start + compositionLength - 1;
+ TextStyle userStyle = layout.getStyle(start);
+ if (userStyle == null) {
+ if (start > 0) userStyle = layout.getStyle(start - 1);
+ if (userStyle == null && end + 1 < length) userStyle = layout.getStyle(end + 1);
+ if (userStyle != null) {
+ TextStyle newStyle = new TextStyle();
+ newStyle.font = userStyle.font;
+ newStyle.foreground = userStyle.foreground;
+ newStyle.background = userStyle.background;
+ layout.setStyle(newStyle, start, end);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (styledText != null && styledText.isFixedLineHeight()) {
+ int index = -1;
+ int lineCount = layout.getLineCount();
+ int height = getLineHeight();
+ for (int i = 0; i < lineCount; i++) {
+ int lineHeight = layout.getLineBounds(i).height;
+ if (lineHeight > height) {
+ height = lineHeight;
+ index = i;
+ }
+ }
+ if (index != -1) {
+ FontMetrics metrics = layout.getLineMetrics(index);
+ ascent = metrics.getAscent() + metrics.getLeading();
+ descent = metrics.getDescent();
+ if (layouts != null) {
+ for (int i = 0; i < layouts.length; i++) {
+ if (layouts[i] != null && layouts[i] != layout) {
+ layouts[i].setAscent(ascent);
+ layouts[i].setDescent(descent);
+ }
+ }
+ }
+ if (styledText.verticalScrollOffset != 0) {
+ int topIndex = styledText.topIndex;
+ int topIndexY = styledText.topIndexY;
+ int lineHeight = getLineHeight();
+ if (topIndexY >= 0) {
+ styledText.verticalScrollOffset = (topIndex - 1) * lineHeight + lineHeight - topIndexY;
+ } else {
+ styledText.verticalScrollOffset = topIndex * lineHeight - topIndexY;
+ }
+ }
+ styledText.calculateScrollBars();
+ if (styledText.isBidiCaret()) styledText.createCaretBitmaps();
+ styledText.caretDirection = SWT.NULL;
+ styledText.setCaretLocation();
+ styledText.redraw();
+ }
+ }
+ return layout;
+}
+int getWidth() {
+ return maxWidth;
+}
+void reset() {
+ if (layouts != null) {
+ for (int i = 0; i < layouts.length; i++) {
+ TextLayout layout = layouts[i];
+ if (layout != null) layout.dispose();
+ }
+ layouts = null;
+ }
+ topIndex = -1;
+ stylesSetCount = styleCount = lineCount = 0;
+ ranges = null;
+ styles = null;
+ stylesSet = null;
+ lines = null;
+ lineWidth = null;
+ lineHeight = null;
+ bullets = null;
+ bulletsIndices = null;
+ redrawLines = null;
+ hasLinks = false;
+}
+void reset(int startLine, int lineCount) {
+ int endLine = startLine + lineCount;
+ if (startLine < 0 || endLine > lineWidth.length) return;
+ for (int i = startLine; i < endLine; i++) {
+ lineWidth[i] = -1;
+ lineHeight[i] = -1;
+ }
+ if (startLine <= maxWidthLineIndex && maxWidthLineIndex < endLine) {
+ maxWidth = 0;
+ maxWidthLineIndex = -1;
+ if (lineCount != this.lineCount) {
+ for (int i = 0; i < this.lineCount; i++) {
+ if (lineWidth[i] > maxWidth) {
+ maxWidth = lineWidth[i];
+ maxWidthLineIndex = i;
+ }
+ }
+ }
+ }
+}
+void setContent(StyledTextContent content) {
+ reset();
+ this.content = content;
+ lineCount = content.getLineCount();
+ lineWidth = new int[lineCount];
+ lineHeight = new int[lineCount];
+ reset(0, lineCount);
+}
+void setFont(Font font, int tabs) {
+ TextLayout layout = new TextLayout(device);
+ layout.setFont(regularFont);
+ if (font != null) {
+ if (boldFont != null) boldFont.dispose();
+ if (italicFont != null) italicFont.dispose();
+ if (boldItalicFont != null) boldItalicFont.dispose();
+ boldFont = italicFont = boldItalicFont = null;
+ regularFont = font;
+ layout.setText(" ");
+ layout.setFont(font);
+ layout.setStyle(new TextStyle(getFont(SWT.NORMAL), null, null), 0, 0);
+ layout.setStyle(new TextStyle(getFont(SWT.BOLD), null, null), 1, 1);
+ layout.setStyle(new TextStyle(getFont(SWT.ITALIC), null, null), 2, 2);
+ layout.setStyle(new TextStyle(getFont(SWT.BOLD | SWT.ITALIC), null, null), 3, 3);
+ FontMetrics metrics = layout.getLineMetrics(0);
+ ascent = metrics.getAscent() + metrics.getLeading();
+ descent = metrics.getDescent();
+ boldFont.dispose();
+ italicFont.dispose();
+ boldItalicFont.dispose();
+ boldFont = italicFont = boldItalicFont = null;
+ }
+ layout.dispose();
+ layout = new TextLayout(device);
+ layout.setFont(regularFont);
+ StringBuffer tabBuffer = new StringBuffer(tabs);
+ for (int i = 0; i < tabs; i++) {
+ tabBuffer.append(' ');
+ }
+ layout.setText(tabBuffer.toString());
+ tabWidth = layout.getBounds().width;
+ layout.dispose();
+ if (styledText != null) {
+ GC gc = new GC(styledText);
+ averageCharWidth = gc.getFontMetrics().getAverageCharWidth();
+ fixedPitch = gc.stringExtent("l").x == gc.stringExtent("W").x; //$NON-NLS-1$ //$NON-NLS-2$
+ gc.dispose();
+ }
+}
+void setLineAlignment(int startLine, int count, int alignment) {
+ if (lines == null) lines = new LineInfo[lineCount];
+ for (int i = startLine; i < startLine + count; i++) {
+ if (lines[i] == null) {
+ lines[i] = new LineInfo();
+ }
+ lines[i].flags |= ALIGNMENT;
+ lines[i].alignment = alignment;
+ }
+}
+void setLineBackground(int startLine, int count, Color background) {
+ if (lines == null) lines = new LineInfo[lineCount];
+ for (int i = startLine; i < startLine + count; i++) {
+ if (lines[i] == null) {
+ lines[i] = new LineInfo();
+ }
+ lines[i].flags |= BACKGROUND;
+ lines[i].background = background;
+ }
+}
+void setLineBullet(int startLine, int count, Bullet bullet) {
+ if (bulletsIndices != null) {
+ bulletsIndices = null;
+ bullets = null;
+ }
+ if (bullets == null) {
+ if (bullet == null) return;
+ bullets = new Bullet[1];
+ bullets[0] = bullet;
+ }
+ int index = 0;
+ while (index < bullets.length) {
+ if (bullet == bullets[index]) break;
+ index++;
+ }
+ if (bullet != null) {
+ if (index == bullets.length) {
+ Bullet[] newBulletsList = new Bullet[bullets.length + 1];
+ System.arraycopy(bullets, 0, newBulletsList, 0, bullets.length);
+ newBulletsList[index] = bullet;
+ bullets = newBulletsList;
+ }
+ bullet.addIndices(startLine, count);
+ } else {
+ updateBullets(startLine, count, 0, false);
+ styledText.redrawLinesBullet(redrawLines);
+ redrawLines = null;
+ }
+}
+void setLineIndent(int startLine, int count, int indent) {
+ if (lines == null) lines = new LineInfo[lineCount];
+ for (int i = startLine; i < startLine + count; i++) {
+ if (lines[i] == null) {
+ lines[i] = new LineInfo();
+ }
+ lines[i].flags |= INDENT;
+ lines[i].indent = indent;
+ }
+}
+void setLineJustify(int startLine, int count, boolean justify) {
+ if (lines == null) lines = new LineInfo[lineCount];
+ for (int i = startLine; i < startLine + count; i++) {
+ if (lines[i] == null) {
+ lines[i] = new LineInfo();
+ }
+ lines[i].flags |= JUSTIFY;
+ lines[i].justify = justify;
+ }
+}
+void setLineSegments(int startLine, int count, int[] segments) {
+ if (lines == null) lines = new LineInfo[lineCount];
+ for (int i = startLine; i < startLine + count; i++) {
+ if (lines[i] == null) {
+ lines[i] = new LineInfo();
+ }
+ lines[i].flags |= SEGMENTS;
+ lines[i].segments = segments;
+ }
+}
+void setStyleRanges (int[] newRanges, StyleRange[] newStyles) {
+ if (newStyles == null) {
+ stylesSetCount = styleCount = 0;
+ ranges = null;
+ styles = null;
+ stylesSet = null;
+ hasLinks = false;
+ return;
+ }
+ if (newRanges == null && COMPACT_STYLES) {
+ newRanges = new int[newStyles.length << 1];
+ StyleRange[] tmpStyles = new StyleRange[newStyles.length];
+ if (stylesSet == null) stylesSet = new StyleRange[4];
+ for (int i = 0, j = 0; i < newStyles.length; i++) {
+ StyleRange newStyle = newStyles[i];
+ newRanges[j++] = newStyle.start;
+ newRanges[j++] = newStyle.length;
+ int index = 0;
+ while (index < stylesSetCount) {
+ if (stylesSet[index].similarTo(newStyle)) break;
+ index++;
+ }
+ if (index == stylesSetCount) {
+ if (stylesSetCount == stylesSet.length) {
+ StyleRange[] tmpStylesSet = new StyleRange[stylesSetCount + 4];
+ System.arraycopy(stylesSet, 0, tmpStylesSet, 0, stylesSetCount);
+ stylesSet = tmpStylesSet;
+ }
+ stylesSet[stylesSetCount++] = newStyle;
+ }
+ tmpStyles[i] = stylesSet[index];
+ }
+ newStyles = tmpStyles;
+ }
+
+ if (styleCount == 0) {
+ if (newRanges != null) {
+ ranges = new int[newRanges.length];
+ System.arraycopy(newRanges, 0, ranges, 0, ranges.length);
+ }
+ styles = new StyleRange[newStyles.length];
+ System.arraycopy(newStyles, 0, styles, 0, styles.length);
+ styleCount = newStyles.length;
+ return;
+ }
+ if (newRanges != null && ranges == null) {
+ ranges = new int[styles.length << 1];
+ for (int i = 0, j = 0; i < styleCount; i++) {
+ ranges[j++] = styles[i].start;
+ ranges[j++] = styles[i].length;
+ }
+ }
+ if (newRanges == null && ranges != null) {
+ newRanges = new int[newStyles.length << 1];
+ for (int i = 0, j = 0; i < newStyles.length; i++) {
+ newRanges[j++] = newStyles[i].start;
+ newRanges[j++] = newStyles[i].length;
+ }
+ }
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ int start = newRanges[0];
+ int modifyStart = getRangeIndex(start, -1, rangeCount), modifyEnd;
+ boolean insert = modifyStart == rangeCount;
+ if (!insert) {
+ int end = newRanges[newRanges.length - 2] + newRanges[newRanges.length - 1];
+ modifyEnd = getRangeIndex(end, modifyStart - 1, rangeCount);
+ insert = modifyStart == modifyEnd && ranges[modifyStart] >= end;
+ }
+ if (insert) {
+ addMerge(newRanges, newStyles, newRanges.length, modifyStart, modifyStart);
+ return;
+ }
+ modifyEnd = modifyStart;
+ int[] mergeRanges = new int[6];
+ StyleRange[] mergeStyles = new StyleRange[3];
+ for (int i = 0; i < newRanges.length; i += 2) {
+ int newStart = newRanges[i];
+ int newEnd = newStart + newRanges[i + 1];
+ if (newStart == newEnd) continue;
+ int modifyLast = 0, mergeCount = 0;
+ while (modifyEnd < rangeCount) {
+ if (newStart >= ranges[modifyStart] + ranges[modifyStart + 1]) modifyStart += 2;
+ if (ranges[modifyEnd] + ranges[modifyEnd + 1] > newEnd) break;
+ modifyEnd += 2;
+ }
+ if (ranges[modifyStart] < newStart && newStart < ranges[modifyStart] + ranges[modifyStart + 1]) {
+ mergeStyles[mergeCount >> 1] = styles[modifyStart >> 1];
+ mergeRanges[mergeCount] = ranges[modifyStart];
+ mergeRanges[mergeCount + 1] = newStart - ranges[modifyStart];
+ mergeCount += 2;
+ }
+ mergeStyles[mergeCount >> 1] = newStyles[i >> 1];
+ mergeRanges[mergeCount] = newStart;
+ mergeRanges[mergeCount + 1] = newRanges[i + 1];
+ mergeCount += 2;
+ if (modifyEnd < rangeCount && ranges[modifyEnd] < newEnd && newEnd < ranges[modifyEnd] + ranges[modifyEnd + 1]) {
+ mergeStyles[mergeCount >> 1] = styles[modifyEnd >> 1];
+ mergeRanges[mergeCount] = newEnd;
+ mergeRanges[mergeCount + 1] = ranges[modifyEnd] + ranges[modifyEnd + 1] - newEnd;
+ mergeCount += 2;
+ modifyLast = 2;
+ }
+ int grow = addMerge(mergeRanges, mergeStyles, mergeCount, modifyStart, modifyEnd + modifyLast);
+ rangeCount += grow;
+ modifyStart = modifyEnd += grow;
+ }
+ } else {
+ int start = newStyles[0].start;
+ int modifyStart = getRangeIndex(start, -1, styleCount), modifyEnd;
+ boolean insert = modifyStart == styleCount;
+ if (!insert) {
+ int end = newStyles[newStyles.length - 1].start + newStyles[newStyles.length - 1].length;
+ modifyEnd = getRangeIndex(end, modifyStart - 1, styleCount);
+ insert = modifyStart == modifyEnd && styles[modifyStart].start >= end;
+ }
+ if (insert) {
+ addMerge(newStyles, newStyles.length, modifyStart, modifyStart);
+ return;
+ }
+ modifyEnd = modifyStart;
+ StyleRange[] mergeStyles = new StyleRange[3];
+ for (int i = 0; i < newStyles.length; i++) {
+ StyleRange newStyle = newStyles[i], style;
+ int newStart = newStyle.start;
+ int newEnd = newStart + newStyle.length;
+ if (newStart == newEnd) continue;
+ int modifyLast = 0, mergeCount = 0;
+ while (modifyEnd < styleCount) {
+ if (newStart >= styles[modifyStart].start + styles[modifyStart].length) modifyStart++;
+ if (styles[modifyEnd].start + styles[modifyEnd].length > newEnd) break;
+ modifyEnd++;
+ }
+ style = styles[modifyStart];
+ if (style.start < newStart && newStart < style.start + style.length) {
+ style = mergeStyles[mergeCount++] = (StyleRange)style.clone();
+ style.length = newStart - style.start;
+ }
+ mergeStyles[mergeCount++] = newStyle;
+ if (modifyEnd < styleCount) {
+ style = styles[modifyEnd];
+ if (style.start < newEnd && newEnd < style.start + style.length) {
+ style = mergeStyles[mergeCount++] = (StyleRange)style.clone();
+ style.length += style.start - newEnd;
+ style.start = newEnd;
+ modifyLast = 1;
+ }
+ }
+ int grow = addMerge(mergeStyles, mergeCount, modifyStart, modifyEnd + modifyLast);
+ modifyStart = modifyEnd += grow;
+ }
+ }
+}
+void textChanging(TextChangingEvent event) {
+ int start = event.start;
+ int newCharCount = event.newCharCount, replaceCharCount = event.replaceCharCount;
+ int newLineCount = event.newLineCount, replaceLineCount = event.replaceLineCount;
+
+ updateRanges(start, replaceCharCount, newCharCount);
+
+ int startLine = content.getLineAtOffset(start);
+ if (replaceCharCount == content.getCharCount()) lines = null;
+ if (replaceLineCount == lineCount) {
+ lineCount = newLineCount;
+ lineWidth = new int[lineCount];
+ lineHeight = new int[lineCount];
+ reset(0, lineCount);
+ } else {
+ int delta = newLineCount - replaceLineCount;
+ if (lineCount + delta > lineWidth.length) {
+ int[] newWidths = new int[lineCount + delta + GROW];
+ System.arraycopy(lineWidth, 0, newWidths, 0, lineCount);
+ lineWidth = newWidths;
+ int[] newHeights = new int[lineCount + delta + GROW];
+ System.arraycopy(lineHeight, 0, newHeights, 0, lineCount);
+ lineHeight = newHeights;
+ }
+ if (lines != null) {
+ if (lineCount + delta > lines.length) {
+ LineInfo[] newLines = new LineInfo[lineCount + delta + GROW];
+ System.arraycopy(lines, 0, newLines, 0, lineCount);
+ lines = newLines;
+ }
+ }
+ int startIndex = startLine + replaceLineCount + 1;
+ int endIndex = startLine + newLineCount + 1;
+ System.arraycopy(lineWidth, startIndex, lineWidth, endIndex, lineCount - startIndex);
+ System.arraycopy(lineHeight, startIndex, lineHeight, endIndex, lineCount - startIndex);
+ for (int i = startLine; i < endIndex; i++) {
+ lineWidth[i] = lineHeight[i] = -1;
+ }
+ for (int i = lineCount + delta; i < lineCount; i++) {
+ lineWidth[i] = lineHeight[i] = -1;
+ }
+ if (layouts != null) {
+ int layoutStartLine = startLine - topIndex;
+ int layoutEndLine = layoutStartLine + replaceLineCount + 1;
+ for (int i = layoutStartLine; i < layoutEndLine; i++) {
+ if (0 <= i && i < layouts.length) {
+ if (layouts[i] != null) layouts[i].dispose();
+ layouts[i] = null;
+ if (bullets != null && bulletsIndices != null) bullets[i] = null;
+ }
+ }
+ if (delta > 0) {
+ for (int i = layouts.length - 1; i >= layoutEndLine; i--) {
+ if (0 <= i && i < layouts.length) {
+ endIndex = i + delta;
+ if (0 <= endIndex && endIndex < layouts.length) {
+ layouts[endIndex] = layouts[i];
+ layouts[i] = null;
+ if (bullets != null && bulletsIndices != null) {
+ bullets[endIndex] = bullets[i];
+ bulletsIndices[endIndex] = bulletsIndices[i];
+ bullets[i] = null;
+ }
+ } else {
+ if (layouts[i] != null) layouts[i].dispose();
+ layouts[i] = null;
+ if (bullets != null && bulletsIndices != null) bullets[i] = null;
+ }
+ }
+ }
+ } else if (delta < 0) {
+ for (int i = layoutEndLine; i < layouts.length; i++) {
+ if (0 <= i && i < layouts.length) {
+ endIndex = i + delta;
+ if (0 <= endIndex && endIndex < layouts.length) {
+ layouts[endIndex] = layouts[i];
+ layouts[i] = null;
+ if (bullets != null && bulletsIndices != null) {
+ bullets[endIndex] = bullets[i];
+ bulletsIndices[endIndex] = bulletsIndices[i];
+ bullets[i] = null;
+ }
+ } else {
+ if (layouts[i] != null) layouts[i].dispose();
+ layouts[i] = null;
+ if (bullets != null && bulletsIndices != null) bullets[i] = null;
+ }
+ }
+ }
+ }
+ }
+ if (replaceLineCount != 0 || newLineCount != 0) {
+ int startLineOffset = content.getOffsetAtLine(startLine);
+ if (startLineOffset != start) startLine++;
+ updateBullets(startLine, replaceLineCount, newLineCount, true);
+ if (lines != null) {
+ startIndex = startLine + replaceLineCount;
+ endIndex = startLine + newLineCount;
+ System.arraycopy(lines, startIndex, lines, endIndex, lineCount - startIndex);
+ for (int i = startLine; i < endIndex; i++) {
+ lines[i] = null;
+ }
+ for (int i = lineCount + delta; i < lineCount; i++) {
+ lines[i] = null;
+ }
+ }
+ }
+ lineCount += delta;
+ if (maxWidthLineIndex != -1 && startLine <= maxWidthLineIndex && maxWidthLineIndex <= startLine + replaceLineCount) {
+ maxWidth = 0;
+ maxWidthLineIndex = -1;
+ for (int i = 0; i < lineCount; i++) {
+ if (lineWidth[i] > maxWidth) {
+ maxWidth = lineWidth[i];
+ maxWidthLineIndex = i;
+ }
+ }
+ }
+ }
+}
+void updateBullets(int startLine, int replaceLineCount, int newLineCount, boolean update) {
+ if (bullets == null) return;
+ if (bulletsIndices != null) return;
+ for (int i = 0; i < bullets.length; i++) {
+ Bullet bullet = bullets[i];
+ int[] lines = bullet.removeIndices(startLine, replaceLineCount, newLineCount, update);
+ if (lines != null) {
+ if (redrawLines == null) {
+ redrawLines = lines;
+ } else {
+ int[] newRedrawBullets = new int[redrawLines.length + lines.length];
+ System.arraycopy(redrawLines, 0, newRedrawBullets, 0, redrawLines.length);
+ System.arraycopy(lines, 0, newRedrawBullets, redrawLines.length, lines.length);
+ redrawLines = newRedrawBullets;
+ }
+ }
+ }
+ int removed = 0;
+ for (int i = 0; i < bullets.length; i++) {
+ if (bullets[i].size() == 0) removed++;
+ }
+ if (removed > 0) {
+ if (removed == bullets.length) {
+ bullets = null;
+ } else {
+ Bullet[] newBulletsList = new Bullet[bullets.length - removed];
+ for (int i = 0, j = 0; i < bullets.length; i++) {
+ Bullet bullet = bullets[i];
+ if (bullet.size() > 0) newBulletsList[j++] = bullet;
+ }
+ bullets = newBulletsList;
+ }
+ }
+}
+void updateRanges(int start, int replaceCharCount, int newCharCount) {
+ if (styleCount == 0 || (replaceCharCount == 0 && newCharCount == 0)) return;
+ if (ranges != null) {
+ int rangeCount = styleCount << 1;
+ int modifyStart = getRangeIndex(start, -1, rangeCount);
+ if (modifyStart == rangeCount) return;
+ int end = start + replaceCharCount;
+ int modifyEnd = getRangeIndex(end, modifyStart - 1, rangeCount);
+ int offset = newCharCount - replaceCharCount;
+ if (modifyStart == modifyEnd && ranges[modifyStart] < start && end < ranges[modifyEnd] + ranges[modifyEnd + 1]) {
+ if (newCharCount == 0) {
+ ranges[modifyStart + 1] -= replaceCharCount;
+ modifyEnd += 2;
+ } else {
+ if (rangeCount + 2 > ranges.length) {
+ int[] newRanges = new int[ranges.length + (GROW << 1)];
+ System.arraycopy(ranges, 0, newRanges, 0, rangeCount);
+ ranges = newRanges;
+ StyleRange[] newStyles = new StyleRange[styles.length + GROW];
+ System.arraycopy(styles, 0, newStyles, 0, styleCount);
+ styles = newStyles;
+ }
+ System.arraycopy(ranges, modifyStart + 2, ranges, modifyStart + 4, rangeCount - (modifyStart + 2));
+ System.arraycopy(styles, (modifyStart + 2) >> 1, styles, (modifyStart + 4) >> 1, styleCount - ((modifyStart + 2) >> 1));
+ ranges[modifyStart + 3] = ranges[modifyStart] + ranges[modifyStart + 1] - end;
+ ranges[modifyStart + 2] = start + newCharCount;
+ ranges[modifyStart + 1] = start - ranges[modifyStart];
+ styles[(modifyStart >> 1) + 1] = styles[modifyStart >> 1];
+ rangeCount += 2;
+ styleCount++;
+ modifyEnd += 4;
+ }
+ if (offset != 0) {
+ for (int i = modifyEnd; i < rangeCount; i += 2) {
+ ranges[i] += offset;
+ }
+ }
+ } else {
+ if (ranges[modifyStart] < start && start < ranges[modifyStart] + ranges[modifyStart + 1]) {
+ ranges[modifyStart + 1] = start - ranges[modifyStart];
+ modifyStart += 2;
+ }
+ if (modifyEnd < rangeCount && ranges[modifyEnd] < end && end < ranges[modifyEnd] + ranges[modifyEnd + 1]) {
+ ranges[modifyEnd + 1] = ranges[modifyEnd] + ranges[modifyEnd + 1] - end;
+ ranges[modifyEnd] = end;
+ }
+ if (offset != 0) {
+ for (int i = modifyEnd; i < rangeCount; i += 2) {
+ ranges[i] += offset;
+ }
+ }
+ System.arraycopy(ranges, modifyEnd, ranges, modifyStart, rangeCount - modifyEnd);
+ System.arraycopy(styles, modifyEnd >> 1, styles, modifyStart >> 1, styleCount - (modifyEnd >> 1));
+ styleCount -= (modifyEnd - modifyStart) >> 1;
+ }
+ } else {
+ int modifyStart = getRangeIndex(start, -1, styleCount);
+ if (modifyStart == styleCount) return;
+ int end = start + replaceCharCount;
+ int modifyEnd = getRangeIndex(end, modifyStart - 1, styleCount);
+ int offset = newCharCount - replaceCharCount;
+ if (modifyStart == modifyEnd && styles[modifyStart].start < start && end < styles[modifyEnd].start + styles[modifyEnd].length) {
+ if (newCharCount == 0) {
+ styles[modifyStart].length -= replaceCharCount;
+ modifyEnd++;
+ } else {
+ if (styleCount + 1 > styles.length) {
+ StyleRange[] newStyles = new StyleRange[styles.length + GROW];
+ System.arraycopy(styles, 0, newStyles, 0, styleCount);
+ styles = newStyles;
+ }
+ System.arraycopy(styles, modifyStart + 1, styles, modifyStart + 2, styleCount - (modifyStart + 1));
+ styles[modifyStart + 1] = (StyleRange)styles[modifyStart].clone();
+ styles[modifyStart + 1].length = styles[modifyStart].start + styles[modifyStart].length - end;
+ styles[modifyStart + 1].start = start + newCharCount;
+ styles[modifyStart].length = start - styles[modifyStart].start;
+ styleCount++;
+ modifyEnd += 2;
+ }
+ if (offset != 0) {
+ for (int i = modifyEnd; i < styleCount; i++) {
+ styles[i].start += offset;
+ }
+ }
+ } else {
+ if (styles[modifyStart].start < start && start < styles[modifyStart].start + styles[modifyStart].length) {
+ styles[modifyStart].length = start - styles[modifyStart].start;
+ modifyStart++;
+ }
+ if (modifyEnd < styleCount && styles[modifyEnd].start < end && end < styles[modifyEnd].start + styles[modifyEnd].length) {
+ styles[modifyEnd].length = styles[modifyEnd].start + styles[modifyEnd].length - end;
+ styles[modifyEnd].start = end;
+ }
+ if (offset != 0) {
+ for (int i = modifyEnd; i < styleCount; i++) {
+ styles[i].start += offset;
+ }
+ }
+ System.arraycopy(styles, modifyEnd, styles, modifyStart, styleCount - modifyEnd);
+ styleCount -= modifyEnd - modifyStart;
+ }
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableCursor.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableCursor.java
new file mode 100644
index 0000000000..0408aa5fd7
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableCursor.java
@@ -0,0 +1,778 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.accessibility.*;
+import org.eclipse.swt.events.*;
+
+/**
+ * A TableCursor provides a way for the user to navigate around a Table
+ * using the keyboard. It also provides a mechanism for selecting an
+ * individual cell in a table.
+ *
+ * <p> Here is an example of using a TableCursor to navigate to a cell and then edit it.
+ *
+ * <code><pre>
+ * public static void main(String[] args) {
+ * Display display = new Display();
+ * Shell shell = new Shell(display);
+ * shell.setLayout(new GridLayout());
+ *
+ * // create a a table with 3 columns and fill with data
+ * final Table table = new Table(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
+ * table.setLayoutData(new GridData(GridData.FILL_BOTH));
+ * TableColumn column1 = new TableColumn(table, SWT.NONE);
+ * TableColumn column2 = new TableColumn(table, SWT.NONE);
+ * TableColumn column3 = new TableColumn(table, SWT.NONE);
+ * for (int i = 0; i &lt; 100; i++) {
+ * TableItem item = new TableItem(table, SWT.NONE);
+ * item.setText(new String[] { "cell "+i+" 0", "cell "+i+" 1", "cell "+i+" 2"});
+ * }
+ * column1.pack();
+ * column2.pack();
+ * column3.pack();
+ *
+ * // create a TableCursor to navigate around the table
+ * final TableCursor cursor = new TableCursor(table, SWT.NONE);
+ * // create an editor to edit the cell when the user hits "ENTER"
+ * // while over a cell in the table
+ * final ControlEditor editor = new ControlEditor(cursor);
+ * editor.grabHorizontal = true;
+ * editor.grabVertical = true;
+ *
+ * cursor.addSelectionListener(new SelectionAdapter() {
+ * // when the TableEditor is over a cell, select the corresponding row in
+ * // the table
+ * public void widgetSelected(SelectionEvent e) {
+ * table.setSelection(new TableItem[] {cursor.getRow()});
+ * }
+ * // when the user hits "ENTER" in the TableCursor, pop up a text editor so that
+ * // they can change the text of the cell
+ * public void widgetDefaultSelected(SelectionEvent e){
+ * final Text text = new Text(cursor, SWT.NONE);
+ * TableItem row = cursor.getRow();
+ * int column = cursor.getColumn();
+ * text.setText(row.getText(column));
+ * text.addKeyListener(new KeyAdapter() {
+ * public void keyPressed(KeyEvent e) {
+ * // close the text editor and copy the data over
+ * // when the user hits "ENTER"
+ * if (e.character == SWT.CR) {
+ * TableItem row = cursor.getRow();
+ * int column = cursor.getColumn();
+ * row.setText(column, text.getText());
+ * text.dispose();
+ * }
+ * // close the text editor when the user hits "ESC"
+ * if (e.character == SWT.ESC) {
+ * text.dispose();
+ * }
+ * }
+ * });
+ * editor.setEditor(text);
+ * text.setFocus();
+ * }
+ * });
+ * // Hide the TableCursor when the user hits the "MOD1" or "MOD2" key.
+ * // This allows the user to select multiple items in the table.
+ * cursor.addKeyListener(new KeyAdapter() {
+ * public void keyPressed(KeyEvent e) {
+ * if (e.keyCode == SWT.MOD1 ||
+ * e.keyCode == SWT.MOD2 ||
+ * (e.stateMask & SWT.MOD1) != 0 ||
+ * (e.stateMask & SWT.MOD2) != 0) {
+ * cursor.setVisible(false);
+ * }
+ * }
+ * });
+ * // Show the TableCursor when the user releases the "MOD2" or "MOD1" key.
+ * // This signals the end of the multiple selection task.
+ * table.addKeyListener(new KeyAdapter() {
+ * public void keyReleased(KeyEvent e) {
+ * if (e.keyCode == SWT.MOD1 && (e.stateMask & SWT.MOD2) != 0) return;
+ * if (e.keyCode == SWT.MOD2 && (e.stateMask & SWT.MOD1) != 0) return;
+ * if (e.keyCode != SWT.MOD1 && (e.stateMask & SWT.MOD1) != 0) return;
+ * if (e.keyCode != SWT.MOD2 && (e.stateMask & SWT.MOD2) != 0) return;
+ *
+ * TableItem[] selection = table.getSelection();
+ * TableItem row = (selection.length == 0) ? table.getItem(table.getTopIndex()) : selection[0];
+ * table.showItem(row);
+ * cursor.setSelection(row, 0);
+ * cursor.setVisible(true);
+ * cursor.setFocus();
+ * }
+ * });
+ *
+ * shell.open();
+ * while (!shell.isDisposed()) {
+ * if (!display.readAndDispatch())
+ * display.sleep();
+ * }
+ * display.dispose();
+ * }
+ * </pre></code>
+ *
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>BORDER</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Selection, DefaultSelection</dd>
+ * </dl>
+ *
+ * @since 2.0
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#tablecursor">TableCursor snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class TableCursor extends Canvas {
+ Table table;
+ TableItem row = null;
+ TableColumn column = null;
+ Listener listener, tableListener, resizeListener, disposeItemListener, disposeColumnListener;
+
+ Color background = null;
+ Color foreground = null;
+
+ // By default, invert the list selection colors
+ static final int BACKGROUND = SWT.COLOR_LIST_SELECTION_TEXT;
+ static final int FOREGROUND = SWT.COLOR_LIST_SELECTION;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * table and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a Table control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see Widget#checkSubclass()
+ * @see Widget#getStyle()
+ */
+public TableCursor(Table parent, int style) {
+ super(parent, style);
+ table = parent;
+ setBackground(null);
+ setForeground(null);
+
+ listener = new Listener() {
+ public void handleEvent(Event event) {
+ switch (event.type) {
+ case SWT.Dispose :
+ onDispose(event);
+ break;
+ case SWT.FocusIn :
+ case SWT.FocusOut :
+ redraw();
+ break;
+ case SWT.KeyDown :
+ keyDown(event);
+ break;
+ case SWT.Paint :
+ paint(event);
+ break;
+ case SWT.Traverse : {
+ event.doit = true;
+ switch (event.detail) {
+ case SWT.TRAVERSE_ARROW_NEXT :
+ case SWT.TRAVERSE_ARROW_PREVIOUS :
+ case SWT.TRAVERSE_RETURN :
+ event.doit = false;
+ break;
+ }
+ break;
+ }
+ }
+ }
+ };
+ int[] events = new int[] {SWT.Dispose, SWT.FocusIn, SWT.FocusOut, SWT.KeyDown, SWT.Paint, SWT.Traverse};
+ for (int i = 0; i < events.length; i++) {
+ addListener(events[i], listener);
+ }
+
+ tableListener = new Listener() {
+ public void handleEvent(Event event) {
+ switch (event.type) {
+ case SWT.MouseDown :
+ tableMouseDown(event);
+ break;
+ case SWT.FocusIn :
+ tableFocusIn(event);
+ break;
+ }
+ }
+ };
+ table.addListener(SWT.FocusIn, tableListener);
+ table.addListener(SWT.MouseDown, tableListener);
+
+ disposeItemListener = new Listener() {
+ public void handleEvent(Event event) {
+ unhookRowColumnListeners();
+ row = null;
+ column = null;
+ _resize();
+ }
+ };
+ disposeColumnListener = new Listener() {
+ public void handleEvent(Event event) {
+ unhookRowColumnListeners();
+ row = null;
+ column = null;
+ _resize();
+ }
+ };
+ resizeListener = new Listener() {
+ public void handleEvent(Event event) {
+ _resize();
+ }
+ };
+ ScrollBar hBar = table.getHorizontalBar();
+ if (hBar != null) {
+ hBar.addListener(SWT.Selection, resizeListener);
+ }
+ ScrollBar vBar = table.getVerticalBar();
+ if (vBar != null) {
+ vBar.addListener(SWT.Selection, resizeListener);
+ }
+
+ getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {
+ public void getRole(AccessibleControlEvent e) {
+ e.detail = ACC.ROLE_TABLECELL;
+ }
+ });
+ getAccessible().addAccessibleListener(new AccessibleAdapter() {
+ public void getName(AccessibleEvent e) {
+ if (row == null) return;
+ int columnIndex = column == null ? 0 : table.indexOf(column);
+ e.result = row.getText(columnIndex);
+ }
+ });
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the user changes the receiver's selection, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * When <code>widgetSelected</code> is called, the item field of the event object is valid.
+ * If the receiver has <code>SWT.CHECK</code> style set and the check selection changes,
+ * the event object detail field contains the value <code>SWT.CHECK</code>.
+ * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's selection
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see SelectionEvent
+ * @see #removeSelectionListener(SelectionListener)
+ *
+ */
+public void addSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null)
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener(listener);
+ addListener(SWT.Selection, typedListener);
+ addListener(SWT.DefaultSelection, typedListener);
+}
+
+void onDispose(Event event) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ table.removeListener(SWT.FocusIn, tableListener);
+ table.removeListener(SWT.MouseDown, tableListener);
+ unhookRowColumnListeners();
+ ScrollBar hBar = table.getHorizontalBar();
+ if (hBar != null) {
+ hBar.removeListener(SWT.Selection, resizeListener);
+ }
+ ScrollBar vBar = table.getVerticalBar();
+ if (vBar != null) {
+ vBar.removeListener(SWT.Selection, resizeListener);
+ }
+}
+
+void keyDown(Event event) {
+ if (row == null) return;
+ switch (event.character) {
+ case SWT.CR :
+ notifyListeners(SWT.DefaultSelection, new Event());
+ return;
+ }
+ int rowIndex = table.indexOf(row);
+ int columnIndex = column == null ? 0 : table.indexOf(column);
+ switch (event.keyCode) {
+ case SWT.ARROW_UP :
+ setRowColumn(Math.max(0, rowIndex - 1), columnIndex, true);
+ break;
+ case SWT.ARROW_DOWN :
+ setRowColumn(Math.min(rowIndex + 1, table.getItemCount() - 1), columnIndex, true);
+ break;
+ case SWT.ARROW_LEFT :
+ case SWT.ARROW_RIGHT :
+ {
+ int columnCount = table.getColumnCount();
+ if (columnCount == 0) break;
+ int[] order = table.getColumnOrder();
+ int index = 0;
+ while (index < order.length) {
+ if (order[index] == columnIndex) break;
+ index++;
+ }
+ if (index == order.length) index = 0;
+ int leadKey = (getStyle() & SWT.RIGHT_TO_LEFT) != 0 ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT;
+ if (event.keyCode == leadKey) {
+ setRowColumn(rowIndex, order[Math.max(0, index - 1)], true);
+ } else {
+ setRowColumn(rowIndex, order[Math.min(columnCount - 1, index + 1)], true);
+ }
+ break;
+ }
+ case SWT.HOME :
+ setRowColumn(0, columnIndex, true);
+ break;
+ case SWT.END :
+ {
+ int i = table.getItemCount() - 1;
+ setRowColumn(i, columnIndex, true);
+ break;
+ }
+ case SWT.PAGE_UP :
+ {
+ int index = table.getTopIndex();
+ if (index == rowIndex) {
+ Rectangle rect = table.getClientArea();
+ TableItem item = table.getItem(index);
+ Rectangle itemRect = item.getBounds(0);
+ rect.height -= itemRect.y;
+ int height = table.getItemHeight();
+ int page = Math.max(1, rect.height / height);
+ index = Math.max(0, index - page + 1);
+ }
+ setRowColumn(index, columnIndex, true);
+ break;
+ }
+ case SWT.PAGE_DOWN :
+ {
+ int index = table.getTopIndex();
+ Rectangle rect = table.getClientArea();
+ TableItem item = table.getItem(index);
+ Rectangle itemRect = item.getBounds(0);
+ rect.height -= itemRect.y;
+ int height = table.getItemHeight();
+ int page = Math.max(1, rect.height / height);
+ int end = table.getItemCount() - 1;
+ index = Math.min(end, index + page - 1);
+ if (index == rowIndex) {
+ index = Math.min(end, index + page - 1);
+ }
+ setRowColumn(index, columnIndex, true);
+ break;
+ }
+ }
+}
+
+void paint(Event event) {
+ if (row == null) return;
+ int columnIndex = column == null ? 0 : table.indexOf(column);
+ GC gc = event.gc;
+ Display display = getDisplay();
+ gc.setBackground(getBackground());
+ gc.setForeground(getForeground());
+ gc.fillRectangle(event.x, event.y, event.width, event.height);
+ int x = 0;
+ Point size = getSize();
+ Image image = row.getImage(columnIndex);
+ if (image != null) {
+ Rectangle imageSize = image.getBounds();
+ int imageY = (size.y - imageSize.height) / 2;
+ gc.drawImage(image, x, imageY);
+ x += imageSize.width;
+ }
+ String text = row.getText(columnIndex);
+ if (text.length() > 0) {
+ Rectangle bounds = row.getBounds(columnIndex);
+ Point extent = gc.stringExtent(text);
+ // Temporary code - need a better way to determine table trim
+ String platform = SWT.getPlatform();
+ if ("win32".equals(platform)) { //$NON-NLS-1$
+ if (table.getColumnCount() == 0 || columnIndex == 0) {
+ x += 2;
+ } else {
+ int alignmnent = column.getAlignment();
+ switch (alignmnent) {
+ case SWT.LEFT:
+ x += 6;
+ break;
+ case SWT.RIGHT:
+ x = bounds.width - extent.x - 6;
+ break;
+ case SWT.CENTER:
+ x += (bounds.width - x - extent.x) / 2;
+ break;
+ }
+ }
+ } else {
+ if (table.getColumnCount() == 0) {
+ x += 5;
+ } else {
+ int alignmnent = column.getAlignment();
+ switch (alignmnent) {
+ case SWT.LEFT:
+ x += 5;
+ break;
+ case SWT.RIGHT:
+ x = bounds.width- extent.x - 2;
+ break;
+ case SWT.CENTER:
+ x += (bounds.width - x - extent.x) / 2 + 2;
+ break;
+ }
+ }
+ }
+ int textY = (size.y - extent.y) / 2;
+ gc.drawString(text, x, textY);
+ }
+ if (isFocusControl()) {
+ gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+ gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
+ gc.drawFocus(0, 0, size.x, size.y);
+ }
+}
+
+void tableFocusIn(Event event) {
+ if (isDisposed()) return;
+ if (isVisible()) {
+ if (row == null && column == null) return;
+ setFocus();
+ }
+}
+
+void tableMouseDown(Event event) {
+ if (isDisposed() || !isVisible()) return;
+ Point pt = new Point(event.x, event.y);
+ int lineWidth = table.getLinesVisible() ? table.getGridLineWidth() : 0;
+ TableItem item = table.getItem(pt);
+ if ((table.getStyle() & SWT.FULL_SELECTION) != 0) {
+ if (item == null) return;
+ } else {
+ int start = item != null ? table.indexOf(item) : table.getTopIndex();
+ int end = table.getItemCount();
+ Rectangle clientRect = table.getClientArea();
+ for (int i = start; i < end; i++) {
+ TableItem nextItem = table.getItem(i);
+ Rectangle rect = nextItem.getBounds(0);
+ if (pt.y >= rect.y && pt.y < rect.y + rect.height + lineWidth) {
+ item = nextItem;
+ break;
+ }
+ if (rect.y > clientRect.y + clientRect.height) return;
+ }
+ if (item == null) return;
+ }
+ TableColumn newColumn = null;
+ int columnCount = table.getColumnCount();
+ if (columnCount == 0) {
+ if ((table.getStyle() & SWT.FULL_SELECTION) == 0) {
+ Rectangle rect = item.getBounds(0);
+ rect.width += lineWidth;
+ rect.height += lineWidth;
+ if (!rect.contains(pt)) return;
+ }
+ } else {
+ for (int i = 0; i < columnCount; i++) {
+ Rectangle rect = item.getBounds(i);
+ rect.width += lineWidth;
+ rect.height += lineWidth;
+ if (rect.contains(pt)) {
+ newColumn = table.getColumn(i);
+ break;
+ }
+ }
+ if (newColumn == null) {
+ if ((table.getStyle() & SWT.FULL_SELECTION) == 0) return;
+ newColumn = table.getColumn(0);
+ }
+ }
+ setRowColumn(item, newColumn, true);
+ setFocus();
+ return;
+}
+void setRowColumn(int row, int column, boolean notify) {
+ TableItem item = row == -1 ? null : table.getItem(row);
+ TableColumn col = column == -1 || table.getColumnCount() == 0 ? null : table.getColumn(column);
+ setRowColumn(item, col, notify);
+}
+void setRowColumn(TableItem row, TableColumn column, boolean notify) {
+ if (this.row == row && this.column == column) {
+ return;
+ }
+ if (this.row != null && this.row != row) {
+ this.row.removeListener(SWT.Dispose, disposeItemListener);
+ this.row = null;
+ }
+ if (this.column != null && this.column != column) {
+ this.column.removeListener(SWT.Dispose, disposeColumnListener);
+ this.column.removeListener(SWT.Move, resizeListener);
+ this.column.removeListener(SWT.Resize, resizeListener);
+ this.column = null;
+ }
+ if (row != null) {
+ if (this.row != row) {
+ this.row = row;
+ row.addListener(SWT.Dispose, disposeItemListener);
+ table.showItem(row);
+ }
+ if (this.column != column && column != null) {
+ this.column = column;
+ column.addListener(SWT.Dispose, disposeColumnListener);
+ column.addListener(SWT.Move, resizeListener);
+ column.addListener(SWT.Resize, resizeListener);
+ table.showColumn(column);
+ }
+ int columnIndex = column == null ? 0 : table.indexOf(column);
+ setBounds(row.getBounds(columnIndex));
+ redraw();
+ if (notify) {
+ notifyListeners(SWT.Selection, new Event());
+ }
+ }
+ getAccessible().setFocus(ACC.CHILDID_SELF);
+}
+
+public void setVisible(boolean visible) {
+ checkWidget();
+ if (visible) _resize();
+ super.setVisible(visible);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's selection.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #addSelectionListener(SelectionListener)
+ *
+ * @since 3.0
+ */
+public void removeSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) {
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ }
+ removeListener(SWT.Selection, listener);
+ removeListener(SWT.DefaultSelection, listener);
+}
+
+void _resize() {
+ if (row == null) {
+ setBounds(-200, -200, 0, 0);
+ } else {
+ int columnIndex = column == null ? 0 : table.indexOf(column);
+ setBounds(row.getBounds(columnIndex));
+ }
+}
+/**
+ * Returns the column over which the TableCursor is positioned.
+ *
+ * @return the column for the current position
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public int getColumn() {
+ checkWidget();
+ return column == null ? 0 : table.indexOf(column);
+}
+/**
+ * Returns the background color that the receiver will use to draw.
+ *
+ * @return the receiver's background color
+ */
+public Color getBackground() {
+ checkWidget();
+ if (background == null) {
+ return getDisplay().getSystemColor(BACKGROUND);
+ }
+ return background;
+}
+/**
+ * Returns the foreground color that the receiver will use to draw.
+ *
+ * @return the receiver's foreground color
+ */
+public Color getForeground() {
+ checkWidget();
+ if (foreground == null) {
+ return getDisplay().getSystemColor(FOREGROUND);
+ }
+ return foreground;
+}
+/**
+ * Returns the row over which the TableCursor is positioned.
+ *
+ * @return the item for the current position
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public TableItem getRow() {
+ checkWidget();
+ return row;
+}
+/**
+ * Sets the receiver's background color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ * <p>
+ * Note: This operation is a hint and may be overridden by the platform.
+ * For example, on Windows the background of a Button cannot be changed.
+ * </p>
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setBackground (Color color) {
+ background = color;
+ super.setBackground(getBackground());
+ redraw();
+}
+/**
+ * Sets the receiver's foreground color to the color specified
+ * by the argument, or to the default system color for the control
+ * if the argument is null.
+ * <p>
+ * Note: This operation is a hint and may be overridden by the platform.
+ * </p>
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setForeground (Color color) {
+ foreground = color;
+ super.setForeground(getForeground());
+ redraw();
+}
+/**
+ * Positions the TableCursor over the cell at the given row and column in the parent table.
+ *
+ * @param row the index of the row for the cell to select
+ * @param column the index of column for the cell to select
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ */
+public void setSelection(int row, int column) {
+ checkWidget();
+ int columnCount = table.getColumnCount();
+ int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
+ if (row < 0
+ || row >= table.getItemCount()
+ || column < 0
+ || column > maxColumnIndex)
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ setRowColumn(row, column, false);
+}
+/**
+ * Positions the TableCursor over the cell at the given row and column in the parent table.
+ *
+ * @param row the TableItem of the row for the cell to select
+ * @param column the index of column for the cell to select
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ */
+public void setSelection(TableItem row, int column) {
+ checkWidget();
+ int columnCount = table.getColumnCount();
+ int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
+ if (row == null
+ || row.isDisposed()
+ || column < 0
+ || column > maxColumnIndex)
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ setRowColumn(table.indexOf(row), column, false);
+}
+void unhookRowColumnListeners() {
+ if (column != null) {
+ column.removeListener(SWT.Dispose, disposeColumnListener);
+ column.removeListener(SWT.Move, resizeListener);
+ column.removeListener(SWT.Resize, resizeListener);
+ column = null;
+ }
+ if (row != null) {
+ row.removeListener(SWT.Dispose, disposeItemListener);
+ row = null;
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableEditor.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableEditor.java
new file mode 100755
index 0000000000..2f57b5f0f0
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableEditor.java
@@ -0,0 +1,260 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+*
+* A TableEditor is a manager for a Control that appears above a cell in a Table and tracks with the
+* moving and resizing of that cell. It can be used to display a text widget above a cell
+* in a Table so that the user can edit the contents of that cell. It can also be used to display
+* a button that can launch a dialog for modifying the contents of the associated cell.
+*
+* <p> Here is an example of using a TableEditor:
+* <code><pre>
+* final Table table = new Table(shell, SWT.FULL_SELECTION | SWT.HIDE_SELECTION);
+* TableColumn column1 = new TableColumn(table, SWT.NONE);
+* TableColumn column2 = new TableColumn(table, SWT.NONE);
+* for (int i = 0; i &lt; 10; i++) {
+* TableItem item = new TableItem(table, SWT.NONE);
+* item.setText(new String[] {"item " + i, "edit this value"});
+* }
+* column1.pack();
+* column2.pack();
+*
+* final TableEditor editor = new TableEditor(table);
+* //The editor must have the same size as the cell and must
+* //not be any smaller than 50 pixels.
+* editor.horizontalAlignment = SWT.LEFT;
+* editor.grabHorizontal = true;
+* editor.minimumWidth = 50;
+* // editing the second column
+* final int EDITABLECOLUMN = 1;
+*
+* table.addSelectionListener(new SelectionAdapter() {
+* public void widgetSelected(SelectionEvent e) {
+* // Clean up any previous editor control
+* Control oldEditor = editor.getEditor();
+* if (oldEditor != null) oldEditor.dispose();
+*
+* // Identify the selected row
+* TableItem item = (TableItem)e.item;
+* if (item == null) return;
+*
+* // The control that will be the editor must be a child of the Table
+* Text newEditor = new Text(table, SWT.NONE);
+* newEditor.setText(item.getText(EDITABLECOLUMN));
+* newEditor.addModifyListener(new ModifyListener() {
+* public void modifyText(ModifyEvent e) {
+* Text text = (Text)editor.getEditor();
+* editor.getItem().setText(EDITABLECOLUMN, text.getText());
+* }
+* });
+* newEditor.selectAll();
+* newEditor.setFocus();
+* editor.setEditor(newEditor, item, EDITABLECOLUMN);
+* }
+* });
+* </pre></code>
+*
+* @see <a href="http://www.eclipse.org/swt/snippets/#tableeditor">TableEditor snippets</a>
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+*/
+public class TableEditor extends ControlEditor {
+ Table table;
+ TableItem item;
+ int column = -1;
+ ControlListener columnListener;
+ Runnable timer;
+ static final int TIMEOUT = 1500;
+/**
+* Creates a TableEditor for the specified Table.
+*
+* @param table the Table Control above which this editor will be displayed
+*
+*/
+public TableEditor (Table table) {
+ super(table);
+ this.table = table;
+
+ columnListener = new ControlListener() {
+ public void controlMoved(ControlEvent e){
+ layout ();
+ }
+ public void controlResized(ControlEvent e){
+ layout ();
+ }
+ };
+ timer = new Runnable () {
+ public void run() {
+ layout ();
+ }
+ };
+
+ // To be consistent with older versions of SWT, grabVertical defaults to true
+ grabVertical = true;
+}
+Rectangle computeBounds () {
+ if (item == null || column == -1 || item.isDisposed()) return new Rectangle(0, 0, 0, 0);
+ Rectangle cell = item.getBounds(column);
+ Rectangle rect = item.getImageBounds(column);
+ cell.x = rect.x + rect.width;
+ cell.width -= rect.width;
+ Rectangle area = table.getClientArea();
+ if (cell.x < area.x + area.width) {
+ if (cell.x + cell.width > area.x + area.width) {
+ cell.width = area.x + area.width - cell.x;
+ }
+ }
+ Rectangle editorRect = new Rectangle(cell.x, cell.y, minimumWidth, minimumHeight);
+
+ if (grabHorizontal) {
+ editorRect.width = Math.max(cell.width, minimumWidth);
+ }
+
+ if (grabVertical) {
+ editorRect.height = Math.max(cell.height, minimumHeight);
+ }
+
+ if (horizontalAlignment == SWT.RIGHT) {
+ editorRect.x += cell.width - editorRect.width;
+ } else if (horizontalAlignment == SWT.LEFT) {
+ // do nothing - cell.x is the right answer
+ } else { // default is CENTER
+ editorRect.x += (cell.width - editorRect.width)/2;
+ }
+
+ if (verticalAlignment == SWT.BOTTOM) {
+ editorRect.y += cell.height - editorRect.height;
+ } else if (verticalAlignment == SWT.TOP) {
+ // do nothing - cell.y is the right answer
+ } else { // default is CENTER
+ editorRect.y += (cell.height - editorRect.height)/2;
+ }
+ return editorRect;
+}
+/**
+ * Removes all associations between the TableEditor and the cell in the table. The
+ * Table and the editor Control are <b>not</b> disposed.
+ */
+public void dispose () {
+ if (table != null && !table.isDisposed()) {
+ if (this.column > -1 && this.column < table.getColumnCount()){
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.removeControlListener(columnListener);
+ }
+ }
+ columnListener = null;
+ table = null;
+ item = null;
+ column = -1;
+ timer = null;
+ super.dispose();
+}
+/**
+* Returns the zero based index of the column of the cell being tracked by this editor.
+*
+* @return the zero based index of the column of the cell being tracked by this editor
+*/
+public int getColumn () {
+ return column;
+}
+/**
+* Returns the TableItem for the row of the cell being tracked by this editor.
+*
+* @return the TableItem for the row of the cell being tracked by this editor
+*/
+public TableItem getItem () {
+ return item;
+}
+void resize () {
+ layout();
+ /*
+ * On some platforms, the table scrolls when an item that
+ * is partially visible at the bottom of the table is
+ * selected. Ensure that the correct row is edited by
+ * laying out one more time in a timerExec().
+ */
+ if (table != null) {
+ Display display = table.getDisplay();
+ display.timerExec(-1, timer);
+ display.timerExec(TIMEOUT, timer);
+ }
+}
+/**
+* Sets the zero based index of the column of the cell being tracked by this editor.
+*
+* @param column the zero based index of the column of the cell being tracked by this editor
+*/
+public void setColumn(int column) {
+ int columnCount = table.getColumnCount();
+ // Separately handle the case where the table has no TableColumns.
+ // In this situation, there is a single default column.
+ if (columnCount == 0) {
+ this.column = (column == 0) ? 0 : -1;
+ resize();
+ return;
+ }
+ if (this.column > -1 && this.column < columnCount){
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.removeControlListener(columnListener);
+ this.column = -1;
+ }
+
+ if (column < 0 || column >= table.getColumnCount()) return;
+
+ this.column = column;
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.addControlListener(columnListener);
+ resize();
+}
+/**
+* Specifies the <code>TableItem</code> that is to be edited.
+*
+* @param item the item to be edited
+*/
+public void setItem (TableItem item) {
+ this.item = item;
+ resize();
+}
+public void setEditor (Control editor) {
+ super.setEditor(editor);
+ resize();
+}
+/**
+* Specify the Control that is to be displayed and the cell in the table that it is to be positioned above.
+*
+* <p>Note: The Control provided as the editor <b>must</b> be created with its parent being the Table control
+* specified in the TableEditor constructor.
+*
+* @param editor the Control that is displayed above the cell being edited
+* @param item the TableItem for the row of the cell being tracked by this editor
+* @param column the zero based index of the column of the cell being tracked by this editor
+*/
+public void setEditor (Control editor, TableItem item, int column) {
+ setItem(item);
+ setColumn(column);
+ setEditor(editor);
+}
+public void layout () {
+ if (table == null || table.isDisposed()) return;
+ if (item == null || item.isDisposed()) return;
+ int columnCount = table.getColumnCount();
+ if (columnCount == 0 && column != 0) return;
+ if (columnCount > 0 && (column < 0 || column >= columnCount)) return;
+ super.layout();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTree.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTree.java
new file mode 100755
index 0000000000..4ac4da4a09
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTree.java
@@ -0,0 +1,818 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * A TableTree is a selectable user interface object
+ * that displays a hierarchy of items, and issues
+ * notification when an item is selected.
+ * A TableTree may be single or multi select.
+ * <p>
+ * The item children that may be added to instances of this class
+ * must be of type <code>TableTreeItem</code>.
+ * </p><p>
+ * Note that although this class is a subclass of <code>Composite</code>,
+ * it does not make sense to add <code>Control</code> children to it,
+ * or set a layout on it.
+ * </p><p>
+ * <dl>
+ * <dt><b>Styles:</b> <dd> SINGLE, MULTI, CHECK, FULL_SELECTION
+ * <dt><b>Events:</b> <dd> Selection, DefaultSelection, Collapse, Expand
+ * </dl>
+ * <p>
+ * Note: Only one of the styles SINGLE, and MULTI may be specified.
+ * </p>
+ *
+ * @deprecated As of 3.1 use Tree, TreeItem and TreeColumn
+ */
+public class TableTree extends Composite {
+ Table table;
+ TableTreeItem[] items = EMPTY_ITEMS;
+ Image plusImage, minusImage, sizeImage;
+ Listener listener;
+
+ /*
+ * TableTreeItems are not treated as children but rather as items.
+ * When the TableTree is disposed, all children are disposed because
+ * TableTree inherits this behaviour from Composite. The items
+ * must be disposed separately. Because TableTree is not part of
+ * the org.eclipse.swt.widgets package, the method releaseWidget can
+ * not be overridden (this is how items are disposed of in Table and Tree).
+ * Instead, the items are disposed of in response to the dispose event on the
+ * TableTree. The "inDispose" flag is used to distinguish between disposing
+ * one TableTreeItem (e.g. when removing an entry from the TableTree) and
+ * disposing the entire TableTree.
+ */
+ boolean inDispose = false;
+
+ static final TableTreeItem[] EMPTY_ITEMS = new TableTreeItem [0];
+ static final String[] EMPTY_TEXTS = new String [0];
+ static final Image[] EMPTY_IMAGES = new Image [0];
+ static final String ITEMID = "TableTreeItemID"; //$NON-NLS-1$
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#SINGLE
+ * @see SWT#MULTI
+ * @see SWT#CHECK
+ * @see SWT#FULL_SELECTION
+ * @see #getStyle
+ */
+public TableTree(Composite parent, int style) {
+ super(parent, checkStyle (style));
+ table = new Table(this, style);
+ Listener tableListener = new Listener() {
+ public void handleEvent(Event e) {
+ switch (e.type) {
+ case SWT.MouseDown: onMouseDown(e); break;
+ case SWT.Selection: onSelection(e); break;
+ case SWT.DefaultSelection: onSelection(e); break;
+ case SWT.KeyDown: onKeyDown(e); break;
+ }
+ }
+ };
+ int[] tableEvents = new int[]{SWT.MouseDown,
+ SWT.Selection,
+ SWT.DefaultSelection,
+ SWT.KeyDown};
+ for (int i = 0; i < tableEvents.length; i++) {
+ table.addListener(tableEvents[i], tableListener);
+ }
+
+ listener = new Listener() {
+ public void handleEvent(Event e) {
+ switch (e.type) {
+ case SWT.Dispose: onDispose(e); break;
+ case SWT.Resize: onResize(e); break;
+ case SWT.FocusIn: onFocusIn(e); break;
+ }
+ }
+ };
+ int[] events = new int[]{SWT.Dispose,
+ SWT.Resize,
+ SWT.FocusIn};
+ for (int i = 0; i < events.length; i++) {
+ addListener(events[i], listener);
+ }
+}
+
+int addItem(TableTreeItem item, int index) {
+ if (index < 0 || index > items.length) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ TableTreeItem[] newItems = new TableTreeItem[items.length + 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ newItems[index] = item;
+ System.arraycopy(items, index, newItems, index + 1, items.length - index);
+ items = newItems;
+
+ /* Return the index in the table where this table should be inserted */
+ if (index == items.length - 1 )
+ return table.getItemCount();
+ else
+ return table.indexOf(items[index+1].tableItem);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the user changes the receiver's selection, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * When <code>widgetSelected</code> is called, the item field of the event object is valid.
+ * If the receiver has <code>SWT.CHECK</code> style set and the check selection changes,
+ * the event object detail field contains the value <code>SWT.CHECK</code>.
+ * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked.
+ * The item field of the event object is valid for default selection, but the detail field is not used.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's selection
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #removeSelectionListener
+ * @see SelectionEvent
+ */
+public void addSelectionListener(SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Selection,typedListener);
+ addListener (SWT.DefaultSelection,typedListener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when an item in the receiver is expanded or collapsed
+ * by sending it one of the messages defined in the <code>TreeListener</code>
+ * interface.
+ *
+ * @param listener the listener which should be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TreeListener
+ * @see #removeTreeListener
+ */
+public void addTreeListener(TreeListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ TypedListener typedListener = new TypedListener (listener);
+ addListener (SWT.Expand, typedListener);
+ addListener (SWT.Collapse, typedListener);
+}
+private static int checkStyle (int style) {
+ int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ style = style & mask;
+ return style;
+}
+public Point computeSize (int wHint, int hHint, boolean changed) {
+ checkWidget();
+ return table.computeSize (wHint, hHint, changed);
+}
+public Rectangle computeTrim (int x, int y, int width, int height) {
+ checkWidget();
+ return table.computeTrim(x, y, width, height);
+}
+
+/**
+ * Deselects all items.
+ * <p>
+ * If an item is selected, it is deselected.
+ * If an item is not selected, it remains unselected.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed
+ * </ul>
+ */
+public void deselectAll () {
+ checkWidget();
+ table.deselectAll();
+}
+
+/* Expand upward from the specified leaf item. */
+void expandItem (TableTreeItem item) {
+ if (item == null) return;
+ expandItem(item.parentItem);
+ if (!item.getVisible()) item.setVisible(true);
+ if ( !item.expanded && item.items.length > 0) {
+ item.setExpanded(true);
+ Event event = new Event();
+ event.item = item;
+ notifyListeners(SWT.Expand, event);
+ }
+}
+public Color getBackground () {
+ // This method must be overridden otherwise, in a TableTree in which the first
+ // item has no sub items, a grey (Widget background colour) square will appear in
+ // the first column of the first item.
+ // It is not possible in the constructor to set the background of the TableTree
+ // to be the same as the background of the Table because this interferes with
+ // the TableTree adapting to changes in the System color settings.
+ return table.getBackground();
+}
+public Rectangle getClientArea () {
+ return table.getClientArea();
+}
+public Color getForeground () {
+ return table.getForeground();
+}
+public Font getFont () {
+ return table.getFont();
+}
+/**
+ * Gets the number of items.
+ * <p>
+ * @return the number of items in the widget
+ */
+public int getItemCount () {
+ //checkWidget();
+ return items.length;
+}
+
+/**
+ * Gets the height of one item.
+ * <p>
+ * This operation will fail if the height of
+ * one item could not be queried from the OS.
+ *
+ * @return the height of one item in the widget
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed
+ * </ul>
+ */
+public int getItemHeight () {
+ checkWidget();
+ return table.getItemHeight();
+}
+
+/**
+ * Gets the items.
+ * <p>
+ * @return the items in the widget
+ */
+public TableTreeItem [] getItems () {
+ //checkWidget();
+ TableTreeItem[] newItems = new TableTreeItem[items.length];
+ System.arraycopy(items, 0, newItems, 0, items.length);
+ return newItems;
+}
+
+/**
+ * Gets the selected items.
+ * <p>
+ * This operation will fail if the selected
+ * items cannot be queried from the OS.
+ *
+ * @return the selected items in the widget
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public TableTreeItem [] getSelection () {
+ checkWidget();
+ TableItem[] selection = table.getSelection();
+ TableTreeItem [] result = new TableTreeItem[selection.length];
+ for (int i = 0; i < selection.length; i++){
+ result[i] = (TableTreeItem) selection[i].getData(ITEMID);
+ }
+ return result;
+}
+
+/**
+ * Gets the number of selected items.
+ * <p>
+ * This operation will fail if the number of selected
+ * items cannot be queried from the OS.
+ *
+ * @return the number of selected items in the widget
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public int getSelectionCount () {
+ checkWidget();
+ return table.getSelectionCount();
+}
+
+public int getStyle () {
+ checkWidget();
+ return table.getStyle();
+}
+
+/**
+ * Returns the underlying Table control.
+ *
+ * @return the underlying Table control
+ */
+public Table getTable () {
+ //checkWidget();
+ return table;
+}
+
+void createImages () {
+
+ int itemHeight = sizeImage.getBounds().height;
+ // Calculate border around image.
+ // At least 9 pixels are needed to draw the image
+ // Leave at least a 6 pixel border.
+ int indent = Math.min(6, (itemHeight - 9) / 2);
+ indent = Math.max(0, indent);
+ int size = Math.max (10, itemHeight - 2 * indent);
+ size = ((size + 1) / 2) * 2; // size must be an even number
+ int midpoint = indent + size / 2;
+
+ Color foreground = getForeground();
+ Color plusMinus = getDisplay().getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
+ Color background = getBackground();
+
+ /* Plus image */
+ PaletteData palette = new PaletteData(new RGB[]{foreground.getRGB(), background.getRGB(), plusMinus.getRGB()});
+ ImageData imageData = new ImageData(itemHeight, itemHeight, 4, palette);
+ imageData.transparentPixel = 1;
+ plusImage = new Image(getDisplay(), imageData);
+ GC gc = new GC(plusImage);
+ gc.setBackground(background);
+ gc.fillRectangle(0, 0, itemHeight, itemHeight);
+ gc.setForeground(plusMinus);
+ gc.drawRectangle(indent, indent, size, size);
+ gc.setForeground(foreground);
+ gc.drawLine(midpoint, indent + 2, midpoint, indent + size - 2);
+ gc.drawLine(indent + 2, midpoint, indent + size - 2, midpoint);
+ gc.dispose();
+
+ /* Minus image */
+ palette = new PaletteData(new RGB[]{foreground.getRGB(), background.getRGB(), plusMinus.getRGB()});
+ imageData = new ImageData(itemHeight, itemHeight, 4, palette);
+ imageData.transparentPixel = 1;
+ minusImage = new Image(getDisplay(), imageData);
+ gc = new GC(minusImage);
+ gc.setBackground(background);
+ gc.fillRectangle(0, 0, itemHeight, itemHeight);
+ gc.setForeground(plusMinus);
+ gc.drawRectangle(indent, indent, size, size);
+ gc.setForeground(foreground);
+ gc.drawLine(indent + 2, midpoint, indent + size - 2, midpoint);
+ gc.dispose();
+}
+
+Image getPlusImage() {
+ if (plusImage == null) createImages();
+ return plusImage;
+}
+
+Image getMinusImage() {
+ if (minusImage == null) createImages();
+ return minusImage;
+}
+
+/**
+ * Gets the index of an item.
+ *
+ * <p>The widget is searched starting at 0 until an
+ * item is found that is equal to the search item.
+ * If no item is found, -1 is returned. Indexing
+ * is zero based. This index is relative to the parent only.
+ *
+ * @param item the search item
+ * @return the index of the item or -1
+ */
+public int indexOf (TableTreeItem item) {
+ //checkWidget();
+ for (int i = 0; i < items.length; i++) {
+ if (item == items[i]) return i;
+ }
+ return -1;
+}
+
+void onDispose(Event e) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, e);
+ e.type = SWT.None;
+ /*
+ * Usually when an item is disposed, destroyItem will change the size of the items array
+ * and dispose of the underlying table items.
+ * Since the whole table tree is being disposed, this is not necessary. For speed
+ * the inDispose flag is used to skip over this part of the item dispose.
+ */
+ inDispose = true;
+ for (int i = 0; i < items.length; i++) {
+ items[i].dispose();
+ }
+ inDispose = false;
+ if (plusImage != null) plusImage.dispose();
+ if (minusImage != null) minusImage.dispose();
+ if (sizeImage != null) sizeImage.dispose();
+ plusImage = minusImage = sizeImage = null;
+}
+
+void onResize(Event e) {
+ Point size = getSize();
+ table.setBounds(0, 0, size.x, size.y);
+}
+
+void onSelection(Event e) {
+ Event event = new Event();
+ TableItem tableItem = (TableItem)e.item;
+ TableTreeItem item = getItem(tableItem);
+ event.item = item;
+
+ if (e.type == SWT.Selection && e.detail == SWT.CHECK && item != null) {
+ event.detail = SWT.CHECK;
+ item.checked = tableItem.getChecked();
+ }
+ notifyListeners(e.type, event);
+}
+/**
+ * Returns the item at the given, zero-relative index in the
+ * receiver. Throws an exception if the index is out of range.
+ *
+ * @param index the index of the item to return
+ * @return the item at the given index
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public TableTreeItem getItem (int index) {
+ checkWidget();
+ int count = items.length;
+ if (!(0 <= index && index < count)) SWT.error (SWT.ERROR_INVALID_RANGE);
+ return items [index];
+}
+
+/**
+ * Returns the item at the given point in the receiver
+ * or null if no such item exists. The point is in the
+ * coordinate system of the receiver.
+ *
+ * @param point the point used to locate the item
+ * @return the item at the given point
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the point is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public TableTreeItem getItem(Point point) {
+ checkWidget();
+ TableItem item = table.getItem(point);
+ if (item == null) return null;
+ return getItem(item);
+
+}
+TableTreeItem getItem(TableItem tableItem) {
+ if (tableItem == null) return null;
+ for (int i = 0; i < items.length; i++) {
+ TableTreeItem item = items[i].getItem(tableItem);
+ if (item != null) return item;
+ }
+ return null;
+}
+void onFocusIn (Event e) {
+ table.setFocus();
+}
+
+void onKeyDown (Event e) {
+ TableTreeItem[] selection = getSelection();
+ if (selection.length == 0) return;
+ TableTreeItem item = selection[0];
+ int type = 0;
+ if (e.keyCode == SWT.ARROW_RIGHT || e.keyCode == SWT.ARROW_LEFT) {
+ int trailKey = (getStyle() & SWT.MIRRORED) != 0 ? SWT.ARROW_LEFT : SWT.ARROW_RIGHT;
+ if (e.keyCode == trailKey) {
+ if (item.getItemCount() == 0) return;
+ if (item.getExpanded()) {
+ TableTreeItem newSelection = item.getItems()[0];
+ table.setSelection(new TableItem[]{newSelection.tableItem});
+ showItem(newSelection);
+ type = SWT.Selection;
+ } else {
+ item.setExpanded(true);
+ type = SWT.Expand;
+ }
+ } else {
+ if (item.getExpanded()) {
+ item.setExpanded(false);
+ type = SWT.Collapse;
+ } else {
+ TableTreeItem parent = item.getParentItem();
+ if (parent != null) {
+ int index = parent.indexOf(item);
+ if (index != 0) return;
+ table.setSelection(new TableItem[]{parent.tableItem});
+ type = SWT.Selection;
+ }
+ }
+ }
+ }
+ if (e.character == '*') {
+ item.expandAll(true);
+ }
+ if (e.character == '-') {
+ if (item.getExpanded()) {
+ item.setExpanded(false);
+ type = SWT.Collapse;
+ }
+ }
+ if (e.character == '+') {
+ if (item.getItemCount() > 0 && !item.getExpanded()) {
+ item.setExpanded(true);
+ type = SWT.Expand;
+ }
+ }
+ if (type == 0) return;
+ Event event = new Event();
+ event.item = item;
+ notifyListeners(type, event);
+}
+void onMouseDown(Event event) {
+ /* If user clicked on the [+] or [-], expand or collapse the tree. */
+ TableItem[] items = table.getItems();
+ for (int i = 0; i < items.length; i++) {
+ Rectangle rect = items[i].getImageBounds(0);
+ if (rect.contains(event.x, event.y)) {
+ TableTreeItem item = (TableTreeItem) items[i].getData(ITEMID);
+ event = new Event();
+ event.item = item;
+ item.setExpanded(!item.getExpanded());
+ if (item.getExpanded()) {
+ notifyListeners(SWT.Expand, event);
+ } else {
+ notifyListeners(SWT.Collapse, event);
+ }
+ return;
+ }
+ }
+}
+
+/**
+ * Removes all items.
+ * <p>
+ * This operation will fail when an item
+ * could not be removed in the OS.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed
+ * </ul>
+ */
+public void removeAll () {
+ checkWidget();
+ setRedraw(false);
+ for (int i = items.length - 1; i >= 0; i--) {
+ items[i].dispose();
+ }
+ items = EMPTY_ITEMS;
+ setRedraw(true);
+}
+
+void removeItem(TableTreeItem item) {
+ int index = 0;
+ while (index < items.length && items[index] != item) index++;
+ if (index == items.length) return;
+ TableTreeItem[] newItems = new TableTreeItem[items.length - 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ System.arraycopy(items, index + 1, newItems, index, items.length - index - 1);
+ items = newItems;
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's selection.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see SelectionListener
+ * @see #addSelectionListener
+ */
+public void removeSelectionListener (SelectionListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Selection, listener);
+ removeListener(SWT.DefaultSelection, listener);
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when items in the receiver are expanded or collapsed.
+ *
+ * @param listener the listener which should no longer be notified
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TreeListener
+ * @see #addTreeListener
+ */
+public void removeTreeListener (TreeListener listener) {
+ checkWidget();
+ if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ removeListener(SWT.Expand, listener);
+ removeListener(SWT.Collapse, listener);
+}
+
+/**
+ * Selects all of the items in the receiver.
+ * <p>
+ * If the receiver is single-select, do nothing.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed
+ * </ul>
+ */
+public void selectAll () {
+ checkWidget();
+ table.selectAll();
+}
+public void setBackground (Color color) {
+ super.setBackground(color);
+ table.setBackground(color);
+ if (sizeImage != null) {
+ GC gc = new GC (sizeImage);
+ gc.setBackground(getBackground());
+ Rectangle size = sizeImage.getBounds();
+ gc.fillRectangle(size);
+ gc.dispose();
+ }
+}
+public void setEnabled (boolean enabled) {
+ super.setEnabled(enabled);
+ table.setEnabled(enabled);
+}
+public void setFont (Font font) {
+ super.setFont(font);
+ table.setFont(font);
+}
+public void setForeground (Color color) {
+ super.setForeground(color);
+ table.setForeground(color);
+}
+public void setMenu (Menu menu) {
+ super.setMenu(menu);
+ table.setMenu(menu);
+}
+
+/**
+ * Sets the receiver's selection to be the given array of items.
+ * The current selection is cleared before the new items are selected.
+ * <p>
+ * Items that are not in the receiver are ignored.
+ * If the receiver is single-select and multiple items are specified,
+ * then all items are ignored.
+ *
+ * @param items the array of items
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if one of the item has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TableTree#deselectAll()
+ */
+public void setSelection (TableTreeItem[] items) {
+ checkWidget ();
+ if (items == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ int length = items.length;
+ if (length == 0 || ((table.getStyle() & SWT.SINGLE) != 0 && length > 1)) {
+ deselectAll();
+ return;
+ }
+ TableItem[] tableItems = new TableItem[length];
+ for (int i = 0; i < length; i++) {
+ if (items[i] == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (!items[i].getVisible()) expandItem (items[i]);
+ tableItems[i] = items[i].tableItem;
+ }
+ table.setSelection(tableItems);
+}
+public void setToolTipText (String string) {
+ super.setToolTipText(string);
+ table.setToolTipText(string);
+}
+
+/**
+ * Shows the item. If the item is already showing in the receiver,
+ * this method simply returns. Otherwise, the items are scrolled
+ * and expanded until the item is visible.
+ *
+ * @param item the item to be shown
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the item is null</li>
+ * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see TableTree#showSelection()
+ */
+public void showItem (TableTreeItem item) {
+ checkWidget();
+ if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ if (!item.getVisible()) expandItem (item);
+ TableItem tableItem = item.tableItem;
+ table.showItem(tableItem);
+}
+
+/**
+ * Shows the selection.
+ * <p>
+ * If there is no selection or the selection
+ * is already visible, this method does nothing.
+ * If the selection is scrolled out of view,
+ * the top index of the widget is changed such
+ * that selection becomes visible.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed
+ * </ul>
+ */
+public void showSelection () {
+ checkWidget();
+ table.showSelection();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeEditor.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeEditor.java
new file mode 100755
index 0000000000..792527b1cf
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeEditor.java
@@ -0,0 +1,259 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.events.*;
+/**
+*
+* A TableTreeEditor is a manager for a Control that appears above a cell in a TableTree
+* and tracks with the moving and resizing of that cell. It can be used to display a
+* text widget above a cell in a TableTree so that the user can edit the contents of
+* that cell. It can also be used to display a button that can launch a dialog for
+* modifying the contents of the associated cell.
+*
+* <p> Here is an example of using a TableTreeEditor:
+* <code><pre>
+* final TableTree tableTree = new TableTree(shell, SWT.FULL_SELECTION | SWT.HIDE_SELECTION);
+* final Table table = tableTree.getTable();
+* TableColumn column1 = new TableColumn(table, SWT.NONE);
+* TableColumn column2 = new TableColumn(table, SWT.NONE);
+* for (int i = 0; i &lt; 10; i++) {
+* TableTreeItem item = new TableTreeItem(tableTree, SWT.NONE);
+* item.setText(0, "item " + i);
+* item.setText(1, "edit this value");
+* for (int j = 0; j &lt; 3; j++) {
+* TableTreeItem subitem = new TableTreeItem(item, SWT.NONE);
+* subitem.setText(0, "subitem " + i + " " + j);
+* subitem.setText(1, "edit this value");
+* }
+* }
+* column1.setWidth(100);
+* column2.pack();
+*
+* final TableTreeEditor editor = new TableTreeEditor(tableTree);
+* //The editor must have the same size as the cell and must
+* //not be any smaller than 50 pixels.
+* editor.horizontalAlignment = SWT.LEFT;
+* editor.grabHorizontal = true;
+* editor.minimumWidth = 50;
+* // editing the second column
+* final int EDITABLECOLUMN = 1;
+*
+* tableTree.addSelectionListener(new SelectionAdapter() {
+* public void widgetSelected(SelectionEvent e) {
+* // Clean up any previous editor control
+* Control oldEditor = editor.getEditor();
+* if (oldEditor != null) oldEditor.dispose();
+*
+* // Identify the selected row
+* TableTreeItem item = (TableTreeItem)e.item;
+* if (item == null) return;
+*
+* // The control that will be the editor must be a child of the Table
+* Text newEditor = new Text(table, SWT.NONE);
+* newEditor.setText(item.getText(EDITABLECOLUMN));
+* newEditor.addModifyListener(new ModifyListener() {
+* public void modifyText(ModifyEvent e) {
+* Text text = (Text)editor.getEditor();
+* editor.getItem().setText(EDITABLECOLUMN, text.getText());
+* }
+* });
+* newEditor.selectAll();
+* newEditor.setFocus();
+* editor.setEditor(newEditor, item, EDITABLECOLUMN);
+* }
+* });
+* </pre></code>
+*
+* @deprecated As of 3.1 use TreeEditor with Tree, TreeItem and TreeColumn
+*/
+public class TableTreeEditor extends ControlEditor {
+
+ TableTree tableTree;
+ TableTreeItem item;
+ int column = -1;
+ ControlListener columnListener;
+ TreeListener treeListener;
+/**
+* Creates a TableTreeEditor for the specified TableTree.
+*
+* @param tableTree the TableTree Control above which this editor will be displayed
+*
+*/
+public TableTreeEditor (TableTree tableTree) {
+ super(tableTree.getTable());
+ this.tableTree = tableTree;
+
+ treeListener = new TreeListener () {
+ final Runnable runnable = new Runnable() {
+ public void run() {
+ if (editor == null || editor.isDisposed()) return;
+ if (TableTreeEditor.this.tableTree.isDisposed()) return;
+ layout();
+ editor.setVisible(true);
+ }
+ };
+ public void treeCollapsed(TreeEvent e) {
+ if (editor == null || editor.isDisposed ()) return;
+ editor.setVisible(false);
+ e.display.asyncExec(runnable);
+ }
+ public void treeExpanded(TreeEvent e) {
+ if (editor == null || editor.isDisposed ()) return;
+ editor.setVisible(false);
+ e.display.asyncExec(runnable);
+ }
+ };
+ tableTree.addTreeListener(treeListener);
+
+ columnListener = new ControlListener() {
+ public void controlMoved(ControlEvent e){
+ layout ();
+ }
+ public void controlResized(ControlEvent e){
+ layout ();
+ }
+ };
+
+ // To be consistent with older versions of SWT, grabVertical defaults to true
+ grabVertical = true;
+}
+Rectangle computeBounds () {
+ if (item == null || column == -1 || item.isDisposed() || item.tableItem == null) return new Rectangle(0, 0, 0, 0);
+ Rectangle cell = item.getBounds(column);
+ Rectangle area = tableTree.getClientArea();
+ if (cell.x < area.x + area.width) {
+ if (cell.x + cell.width > area.x + area.width) {
+ cell.width = area.x + area.width - cell.x;
+ }
+ }
+ Rectangle editorRect = new Rectangle(cell.x, cell.y, minimumWidth, minimumHeight);
+
+ if (grabHorizontal) {
+ editorRect.width = Math.max(cell.width, minimumWidth);
+ }
+
+ if (grabVertical) {
+ editorRect.height = Math.max(cell.height, minimumHeight);
+ }
+
+ if (horizontalAlignment == SWT.RIGHT) {
+ editorRect.x += cell.width - editorRect.width;
+ } else if (horizontalAlignment == SWT.LEFT) {
+ // do nothing - cell.x is the right answer
+ } else { // default is CENTER
+ editorRect.x += (cell.width - editorRect.width)/2;
+ }
+
+ if (verticalAlignment == SWT.BOTTOM) {
+ editorRect.y += cell.height - editorRect.height;
+ } else if (verticalAlignment == SWT.TOP) {
+ // do nothing - cell.y is the right answer
+ } else { // default is CENTER
+ editorRect.y += (cell.height - editorRect.height)/2;
+ }
+ return editorRect;
+}
+/**
+ * Removes all associations between the TableTreeEditor and the cell in the table tree. The
+ * TableTree and the editor Control are <b>not</b> disposed.
+ */
+public void dispose () {
+ if (tableTree != null && !tableTree.isDisposed()) {
+ Table table = tableTree.getTable();
+ if (table != null && !table.isDisposed()) {
+ if (this.column > -1 && this.column < table.getColumnCount()){
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.removeControlListener(columnListener);
+ }
+ }
+ if (treeListener != null) tableTree.removeTreeListener(treeListener);
+ }
+ treeListener = null;
+ columnListener = null;
+ tableTree = null;
+ item = null;
+ column = -1;
+ super.dispose();
+}
+/**
+* Returns the zero based index of the column of the cell being tracked by this editor.
+*
+* @return the zero based index of the column of the cell being tracked by this editor
+*/
+public int getColumn () {
+ return column;
+}
+/**
+* Returns the TableTreeItem for the row of the cell being tracked by this editor.
+*
+* @return the TableTreeItem for the row of the cell being tracked by this editor
+*/
+public TableTreeItem getItem () {
+ return item;
+}
+public void setColumn(int column) {
+ Table table = tableTree.getTable();
+ int columnCount = table.getColumnCount();
+ // Separately handle the case where the table has no TableColumns.
+ // In this situation, there is a single default column.
+ if (columnCount == 0) {
+ this.column = (column == 0) ? 0 : -1;
+ layout();
+ return;
+ }
+ if (this.column > -1 && this.column < columnCount){
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.removeControlListener(columnListener);
+ this.column = -1;
+ }
+
+ if (column < 0 || column >= table.getColumnCount()) return;
+
+ this.column = column;
+ TableColumn tableColumn = table.getColumn(this.column);
+ tableColumn.addControlListener(columnListener);
+ layout();
+}
+public void setItem (TableTreeItem item) {
+ this.item = item;
+ layout();
+}
+
+/**
+* Specify the Control that is to be displayed and the cell in the table that it is to be positioned above.
+*
+* <p>Note: The Control provided as the editor <b>must</b> be created with its parent being the Table control
+* specified in the TableEditor constructor.
+*
+* @param editor the Control that is displayed above the cell being edited
+* @param item the TableItem for the row of the cell being tracked by this editor
+* @param column the zero based index of the column of the cell being tracked by this editor
+*/
+public void setEditor (Control editor, TableTreeItem item, int column) {
+ setItem(item);
+ setColumn(column);
+ setEditor(editor);
+}
+public void layout () {
+ if (tableTree == null || tableTree.isDisposed()) return;
+ if (item == null || item.isDisposed()) return;
+ Table table = tableTree.getTable();
+ int columnCount = table.getColumnCount();
+ if (columnCount == 0 && column != 0) return;
+ if (columnCount > 0 && (column < 0 || column >= columnCount)) return;
+ super.layout();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeItem.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeItem.java
new file mode 100755
index 0000000000..83c2fc8422
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TableTreeItem.java
@@ -0,0 +1,876 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * A TableTreeItem is a selectable user interface object
+ * that represents an item in a hierarchy of items in a
+ * TableTree.
+ *
+ * @deprecated As of 3.1 use Tree, TreeItem and TreeColumn
+ */
+public class TableTreeItem extends Item {
+ TableItem tableItem;
+ TableTree parent;
+ TableTreeItem parentItem;
+ TableTreeItem [] items = TableTree.EMPTY_ITEMS;
+ String[] texts = TableTree.EMPTY_TEXTS;
+ Image[] images = TableTree.EMPTY_IMAGES;
+ Color background;
+ Color foreground;
+ Font font;
+ boolean expanded;
+ boolean checked;
+ boolean grayed;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>TableTree</code>)
+ * and a style value describing its behavior and appearance.
+ * The item is added to the end of the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public TableTreeItem(TableTree parent, int style) {
+ this (parent, style, parent.getItemCount());
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>TableTree</code>,
+ * a style value describing its behavior and appearance, and the index
+ * at which to place it in the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ * @param index the index to store the receiver in its parent
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public TableTreeItem(TableTree parent, int style, int index) {
+ this (parent, null, style, index);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>TableTreeItem</code>)
+ * and a style value describing its behavior and appearance.
+ * The item is added to the end of the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public TableTreeItem(TableTreeItem parent, int style) {
+ this (parent, style, parent.getItemCount());
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>TableTreeItem</code>),
+ * a style value describing its behavior and appearance, and the index
+ * at which to place it in the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ * @param index the index to store the receiver in its parent
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public TableTreeItem(TableTreeItem parent, int style, int index) {
+ this (parent.getParent(), parent, style, index);
+}
+
+TableTreeItem(TableTree parent, TableTreeItem parentItem, int style, int index) {
+ super(parent, style);
+ this.parent = parent;
+ this.parentItem = parentItem;
+ if (parentItem == null) {
+
+ /* Root items are visible immediately */
+ int tableIndex = parent.addItem(this, index);
+ tableItem = new TableItem(parent.getTable(), style, tableIndex);
+ tableItem.setData(TableTree.ITEMID, this);
+ addCheck();
+ /*
+ * Feature in the Table. The table uses the first image that
+ * is inserted into the table to size the table rows. If the
+ * user is allowed to insert the first image, this will cause
+ * the +/- images to be scaled. The fix is to insert a dummy
+ * image to force the size.
+ */
+ if (parent.sizeImage == null) {
+ int itemHeight = parent.getItemHeight();
+ parent.sizeImage = new Image(parent.getDisplay(), itemHeight, itemHeight);
+ GC gc = new GC (parent.sizeImage);
+ gc.setBackground(parent.getBackground());
+ gc.fillRectangle(0, 0, itemHeight, itemHeight);
+ gc.dispose();
+ tableItem.setImage(0, parent.sizeImage);
+ }
+ } else {
+ parentItem.addItem(this, index);
+ }
+}
+void addCheck() {
+ Table table = parent.getTable();
+ if ((table.getStyle() & SWT.CHECK) == 0) return;
+ tableItem.setChecked(checked);
+ tableItem.setGrayed(grayed);
+}
+void addItem(TableTreeItem item, int index) {
+ if (item == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (index < 0 || index > items.length) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+
+ /* Now that item has a sub-node it must indicate that it can be expanded */
+ if (items.length == 0 && index == 0) {
+ if (tableItem != null) {
+ Image image = expanded ? parent.getMinusImage() : parent.getPlusImage();
+ tableItem.setImage(0, image);
+ }
+ }
+
+ /* Put the item in the items list */
+ TableTreeItem[] newItems = new TableTreeItem[items.length + 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ newItems[index] = item;
+ System.arraycopy(items, index, newItems, index + 1, items.length - index);
+ items = newItems;
+ if (expanded) item.setVisible(true);
+}
+
+/**
+ * Returns the receiver's background color.
+ *
+ * @return the background color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ *
+ */
+public Color getBackground () {
+ checkWidget ();
+ return (background == null) ? parent.getBackground() : background;
+}
+
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent.
+ *
+ * @return the receiver's bounding rectangle
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Rectangle getBounds (int index) {
+ checkWidget();
+ if (tableItem != null) {
+ return tableItem.getBounds(index);
+ } else {
+ return new Rectangle(0, 0, 0, 0);
+ }
+}
+/**
+ * Returns <code>true</code> if the receiver is checked,
+ * and false otherwise. When the parent does not have
+ * the <code>CHECK style, return false.
+ *
+ * @return the checked state of the checkbox
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getChecked () {
+ checkWidget();
+ if (tableItem == null) return checked;
+ return tableItem.getChecked();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is grayed,
+ * and false otherwise. When the parent does not have
+ * the <code>CHECK</code> style, return false.
+ *
+ * @return the grayed state of the checkbox
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public boolean getGrayed () {
+ checkWidget();
+ if (tableItem == null) return grayed;
+ return tableItem.getGrayed();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is expanded,
+ * and false otherwise.
+ * <p>
+ *
+ * @return the expanded state
+ */
+public boolean getExpanded () {
+ //checkWidget();
+ return expanded;
+}
+
+/**
+ * Returns the font that the receiver will use to paint textual information for this item.
+ *
+ * @return the receiver's font
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public Font getFont () {
+ checkWidget ();
+ return (font == null) ? parent.getFont() : font;
+}
+/**
+ * Returns the foreground color that the receiver will use to draw.
+ *
+ * @return the receiver's foreground color
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ *
+ */
+public Color getForeground () {
+ checkWidget ();
+ return (foreground == null) ? parent.getForeground() : foreground;
+}
+/**
+ * Gets the first image.
+ * <p>
+ * The image in column 0 is reserved for the [+] and [-]
+ * images of the tree, therefore getImage(0) will return null.
+ *
+ * @return the image at index 0
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Image getImage () {
+ checkWidget();
+ return getImage(0);
+}
+
+/**
+ * Gets the image at the specified index.
+ * <p>
+ * Indexing is zero based. The image can be null.
+ * The image in column 0 is reserved for the [+] and [-]
+ * images of the tree, therefore getImage(0) will return null.
+ * Return null if the index is out of range.
+ *
+ * @param index the index of the image
+ * @return the image at the specified index or null
+ */
+public Image getImage (int index) {
+ //checkWidget();
+ if (0 < index && index < images.length) return images[index];
+ return null;
+}
+
+int getIndent() {
+ if (parentItem == null) return 0;
+ return parentItem.getIndent() + 1;
+}
+
+/**
+ * Returns the item at the given, zero-relative index in the
+ * receiver. Throws an exception if the index is out of range.
+ *
+ * @param index the index of the item to return
+ * @return the item at the given index
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.1
+ */
+public TableTreeItem getItem (int index) {
+ checkWidget();
+ int count = items.length;
+ if (!(0 <= index && index < count)) SWT.error (SWT.ERROR_INVALID_RANGE);
+ return items [index];
+}
+
+/**
+ * Returns the number of items contained in the receiver
+ * that are direct item children of the receiver.
+ *
+ * @return the number of items
+ */
+public int getItemCount () {
+ //checkWidget();
+ return items.length;
+}
+
+/**
+ * Returns an array of <code>TableTreeItem</code>s which are the
+ * direct item children of the receiver.
+ * <p>
+ * Note: This is not the actual structure used by the receiver
+ * to maintain its list of items, so modifying the array will
+ * not affect the receiver.
+ * </p>
+ *
+ * @return the receiver's items
+ */
+public TableTreeItem[] getItems () {
+ //checkWidget();
+ TableTreeItem[] newItems = new TableTreeItem[items.length];
+ System.arraycopy(items, 0, newItems, 0, items.length);
+ return newItems;
+}
+
+TableTreeItem getItem(TableItem tableItem) {
+ if (tableItem == null) return null;
+ if (this.tableItem == tableItem) return this;
+ for (int i = 0; i < items.length; i++) {
+ TableTreeItem item = items[i].getItem(tableItem);
+ if (item != null) return item;
+ }
+ return null;
+}
+
+/**
+ * Returns the receiver's parent, which must be a <code>TableTree</code>.
+ *
+ * @return the receiver's parent
+ */
+public TableTree getParent () {
+ //checkWidget();
+ return parent;
+}
+
+/**
+ * Returns the receiver's parent item, which must be a
+ * <code>TableTreeItem</code> or null when the receiver is a
+ * root.
+ *
+ * @return the receiver's parent item
+ */
+public TableTreeItem getParentItem () {
+ //checkWidget();
+ return parentItem;
+}
+public String getText () {
+ checkWidget();
+ return getText(0);
+}
+
+/**
+ * Gets the item text at the specified index.
+ * <p>
+ * Indexing is zero based.
+ *
+ * This operation will fail when the index is out
+ * of range or an item could not be queried from
+ * the OS.
+ *
+ * @param index the index of the item
+ * @return the item text at the specified index, which can be null
+ */
+public String getText(int index) {
+ //checkWidget();
+ if (0 <= index && index < texts.length) return texts[index];
+ return null;
+}
+
+boolean getVisible () {
+ return tableItem != null;
+}
+
+/**
+ * Gets the index of the specified item.
+ *
+ * <p>The widget is searched starting at 0 until an
+ * item is found that is equal to the search item.
+ * If no item is found, -1 is returned. Indexing
+ * is zero based. This index is relative to the parent only.
+ *
+ * @param item the search item
+ * @return the index of the item or -1 if the item is not found
+ *
+ */
+public int indexOf (TableTreeItem item) {
+ //checkWidget();
+ for (int i = 0; i < items.length; i++) {
+ if (items[i] == item) return i;
+ }
+ return -1;
+}
+
+void expandAll(boolean notify) {
+ if (items.length == 0) return;
+ if (!expanded) {
+ setExpanded(true);
+ if (notify) {
+ Event event = new Event();
+ event.item = this;
+ parent.notifyListeners(SWT.Expand, event);
+ }
+ }
+ for (int i = 0; i < items.length; i++) {
+ items[i].expandAll(notify);
+ }
+}
+int expandedIndexOf (TableTreeItem item) {
+ int index = 0;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i] == item) return index;
+ if (items[i].expanded) index += items[i].visibleChildrenCount ();
+ index++;
+ }
+ return -1;
+}
+
+int visibleChildrenCount () {
+ int count = 0;
+ for (int i = 0; i < items.length; i++) {
+ if (items[i].getVisible ()) {
+ count += 1 + items[i].visibleChildrenCount ();
+ }
+ }
+ return count;
+}
+
+public void dispose () {
+ if (isDisposed()) return;
+ for (int i = items.length - 1; i >= 0; i--) {
+ items[i].dispose();
+ }
+ super.dispose();
+ if (!parent.inDispose) {
+ if (parentItem != null) {
+ parentItem.removeItem(this);
+ } else {
+ parent.removeItem(this);
+ }
+ if (tableItem != null) tableItem.dispose();
+ }
+ items = null;
+ parentItem = null;
+ parent = null;
+ images = null;
+ texts = null;
+ tableItem = null;
+ foreground = null;
+ background = null;
+ font = null;
+}
+
+void removeItem(TableTreeItem item) {
+ int index = 0;
+ while (index < items.length && items[index] != item) index++;
+ if (index == items.length) return;
+ TableTreeItem[] newItems = new TableTreeItem[items.length - 1];
+ System.arraycopy(items, 0, newItems, 0, index);
+ System.arraycopy(items, index + 1, newItems, index, items.length - index - 1);
+ items = newItems;
+ if (items.length == 0) {
+ if (tableItem != null) tableItem.setImage(0, null);
+ }
+}
+
+/**
+ * Sets the receiver's background color to the color specified
+ * by the argument, or to the default system color for the item
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ *
+ */
+public void setBackground (Color color) {
+ checkWidget ();
+ if (color != null && color.isDisposed ()) {
+ SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (tableItem != null) {
+ tableItem.setBackground(color);
+ }
+ background = color;
+}
+
+/**
+ * Sets the checked state of the checkbox for this item. This state change
+ * only applies if the Table was created with the SWT.CHECK style.
+ *
+ * @param checked the new checked state of the checkbox
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setChecked (boolean checked) {
+ checkWidget();
+ Table table = parent.getTable();
+ if ((table.getStyle() & SWT.CHECK) == 0) return;
+ if (tableItem != null) {
+ tableItem.setChecked(checked);
+ }
+ this.checked = checked;
+}
+
+/**
+ * Sets the grayed state of the checkbox for this item. This state change
+ * only applies if the Table was created with the SWT.CHECK style.
+ *
+ * @param grayed the new grayed state of the checkbox;
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.1
+ */
+public void setGrayed (boolean grayed) {
+ checkWidget();
+ Table table = parent.getTable();
+ if ((table.getStyle() & SWT.CHECK) == 0) return;
+ if (tableItem != null) {
+ tableItem.setGrayed(grayed);
+ }
+ this.grayed = grayed;
+}
+
+/**
+ * Sets the expanded state.
+ * <p>
+ * @param expanded the new expanded state.
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setExpanded (boolean expanded) {
+ checkWidget();
+ if (items.length == 0) return;
+ if (this.expanded == expanded) return;
+ this.expanded = expanded;
+ if (tableItem == null) return;
+ parent.setRedraw(false);
+ for (int i = 0; i < items.length; i++) {
+ items[i].setVisible(expanded);
+ }
+ Image image = expanded ? parent.getMinusImage() : parent.getPlusImage();
+ tableItem.setImage(0, image);
+ parent.setRedraw(true);
+}
+
+/**
+ * Sets the font that the receiver will use to paint textual information
+ * for this item to the font specified by the argument, or to the default font
+ * for that kind of control if the argument is null.
+ *
+ * @param font the new font (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setFont (Font font){
+ checkWidget ();
+ if (font != null && font.isDisposed ()) {
+ SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (tableItem != null) {
+ tableItem.setFont(font);
+ }
+ this.font = font;
+}
+/**
+ * Sets the receiver's foreground color to the color specified
+ * by the argument, or to the default system color for the item
+ * if the argument is null.
+ *
+ * @param color the new color (or null)
+ *
+ * @since 2.0
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 2.0
+ *
+ */
+public void setForeground (Color color) {
+ checkWidget ();
+ if (color != null && color.isDisposed ()) {
+ SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (tableItem != null) {
+ tableItem.setForeground(color);
+ }
+ foreground = color;
+}
+
+/**
+ * Sets the image at an index.
+ * <p>
+ * The image can be null.
+ * The image in column 0 is reserved for the [+] and [-]
+ * images of the tree, therefore do nothing if index is 0.
+ *
+ * @param image the new image or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setImage (int index, Image image) {
+ checkWidget();
+ int columnCount = Math.max(parent.getTable().getColumnCount(), 1);
+ if (index <= 0 || index >= columnCount) return;
+ if (images.length < columnCount) {
+ Image[] newImages = new Image[columnCount];
+ System.arraycopy(images, 0, newImages, 0, images.length);
+ images = newImages;
+ }
+ images[index] = image;
+ if (tableItem != null) tableItem.setImage(index, image);
+}
+
+/**
+ * Sets the first image.
+ * <p>
+ * The image can be null.
+ * The image in column 0 is reserved for the [+] and [-]
+ * images of the tree, therefore do nothing.
+ *
+ * @param image the new image or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setImage (Image image) {
+ setImage(0, image);
+}
+
+/**
+ * Sets the widget text.
+ * <p>
+ *
+ * The widget text for an item is the label of the
+ * item or the label of the text specified by a column
+ * number.
+ *
+ * @param index the column number
+ * @param text the new text
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the text is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+ * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+ * </ul>
+ */
+public void setText(int index, String text) {
+ checkWidget();
+ if (text == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+ int columnCount = Math.max(parent.getTable().getColumnCount(), 1);
+ if (index < 0 || index >= columnCount) return;
+ if (texts.length < columnCount) {
+ String[] newTexts = new String[columnCount];
+ System.arraycopy(texts, 0, newTexts, 0, texts.length);
+ texts = newTexts;
+ }
+ texts[index] = text;
+ if (tableItem != null) tableItem.setText(index, text);
+}
+public void setText (String string) {
+ setText(0, string);
+}
+
+void setVisible (boolean show) {
+ if (parentItem == null) return; // this is a root and can not be toggled between visible and hidden
+ if (getVisible() == show) return;
+
+ if (show) {
+ if (!parentItem.getVisible()) return; // parentItem must already be visible
+ // create underlying table item and set data in table item to stored data
+ Table table = parent.getTable();
+ int parentIndex = table.indexOf(parentItem.tableItem);
+ int index = parentItem.expandedIndexOf(this) + parentIndex + 1;
+ if (index < 0) return;
+ tableItem = new TableItem(table, getStyle(), index);
+ tableItem.setData(TableTree.ITEMID, this);
+ tableItem.setImageIndent(getIndent());
+ if (background != null) tableItem.setBackground(background);
+ if (foreground != null) tableItem.setForeground(foreground);
+ if (font != null) tableItem.setFont(font);
+ addCheck();
+
+ // restore fields to item
+ // ignore any images in the first column
+ int columnCount = Math.max(table.getColumnCount(), 1);
+ for (int i = 0; i < columnCount; i++) {
+ if (i < texts.length && texts[i] != null) setText(i, texts[i]);
+ if (i < images.length && images[i] != null) setImage(i, images[i]);
+ }
+
+ // display the children and the appropriate [+]/[-] symbol as required
+ if (items.length != 0) {
+ if (expanded) {
+ tableItem.setImage(0, parent.getMinusImage());
+ for (int i = 0, length = items.length; i < length; i++) {
+ items[i].setVisible(true);
+ }
+ } else {
+ tableItem.setImage(0, parent.getPlusImage());
+ }
+ }
+
+ } else {
+
+ for (int i = 0, length = items.length; i < length; i++) {
+ items[i].setVisible(false);
+ }
+ // remove row from table
+ tableItem.dispose();
+ tableItem = null;
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangeListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangeListener.java
new file mode 100755
index 0000000000..a7c53a855c
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangeListener.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * The StyledText widget implements this listener to receive
+ * notifications when changes to the model occur.
+ * It is not intended to be implemented by clients or by
+ * implementors of StyledTextContent.
+ * Clients should listen to the ModifyEvent or ExtendedModifyEvent
+ * that is sent by the StyledText widget to receive text change
+ * notifications.
+ * Implementors of StyledTextContent should call the textChanging
+ * and textChanged methods when text changes occur as described
+ * below. If the entire text is replaced the textSet method
+ * should be called instead.
+ */
+public interface TextChangeListener extends SWTEventListener {
+
+/**
+ * This method is called when the content is about to be changed.
+ * Callers also need to call the textChanged method after the
+ * content change has been applied. The widget only updates the
+ * screen properly when it receives both events.
+ *
+ * @param event the text changing event. All event fields need
+ * to be set by the sender.
+ * @see TextChangingEvent
+ */
+public void textChanging(TextChangingEvent event);
+/**
+ * This method is called when the content has changed.
+ * Callers need to have called the textChanging method prior to
+ * applying the content change and calling this method. The widget
+ * only updates the screen properly when it receives both events.
+ *
+ * @param event the text changed event
+ */
+public void textChanged(TextChangedEvent event);
+/**
+ * This method is called instead of the textChanging/textChanged
+ * combination when the entire old content has been replaced
+ * (e.g., by a call to StyledTextContent.setText()).
+ *
+ * @param event the text changed event
+ */
+public void textSet(TextChangedEvent event);
+}
+
+
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangedEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangedEvent.java
new file mode 100755
index 0000000000..0cacf8a6f7
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangedEvent.java
@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent by the StyledTextContent implementor when a change to
+ * the text occurs.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class TextChangedEvent extends TypedEvent {
+
+ static final long serialVersionUID = 3258696524257835065L;
+
+/**
+ * Create the TextChangedEvent to be used by the StyledTextContent implementor.
+ * <p>
+ *
+ * @param source the object that will be sending the TextChangedEvent,
+ * cannot be null
+ */
+public TextChangedEvent(StyledTextContent source) {
+ super(source);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangingEvent.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangingEvent.java
new file mode 100755
index 0000000000..cf109a27dc
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TextChangingEvent.java
@@ -0,0 +1,71 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.events.*;
+
+/**
+ * This event is sent by the StyledTextContent implementor when a change
+ * to the text is about to occur.
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class TextChangingEvent extends TypedEvent {
+ /**
+ * Start offset of the text that is going to be replaced
+ */
+ public int start;
+ /**
+ * Text that is going to be inserted or empty string
+ * if no text will be inserted
+ */
+ public String newText;
+ /**
+ * Length of text that is going to be replaced
+ */
+ public int replaceCharCount;
+ /**
+ * Length of text that is going to be inserted
+ */
+ public int newCharCount;
+ /**
+ * Number of lines that are going to be replaced
+ */
+ public int replaceLineCount;
+ /**
+ * Number of new lines that are going to be inserted
+ */
+ public int newLineCount;
+
+ static final long serialVersionUID = 3257290210114352439L;
+
+/**
+ * Create the TextChangedEvent to be used by the StyledTextContent implementor.
+ * <p>
+ *
+ * @param source the object that will be sending the new TextChangingEvent,
+ * cannot be null
+ */
+public TextChangingEvent(StyledTextContent source) {
+ super(source);
+}
+TextChangingEvent(StyledTextContent source, StyledTextEvent e) {
+ super(source);
+ start = e.start;
+ replaceCharCount = e.replaceCharCount;
+ newCharCount = e.newCharCount;
+ replaceLineCount = e.replaceLineCount;
+ newLineCount = e.newLineCount;
+ newText = e.text;
+}
+
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TreeEditor.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TreeEditor.java
new file mode 100755
index 0000000000..de4f7b2f4f
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/TreeEditor.java
@@ -0,0 +1,319 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+*
+* A TreeEditor is a manager for a Control that appears above a cell in a Tree and tracks with the
+* moving and resizing of that cell. It can be used to display a text widget above a cell
+* in a Tree so that the user can edit the contents of that cell. It can also be used to display
+* a button that can launch a dialog for modifying the contents of the associated cell.
+*
+* <p> Here is an example of using a TreeEditor:
+* <code><pre>
+* final Tree tree = new Tree(shell, SWT.BORDER);
+* for (int i = 0; i &lt; 3; i++) {
+* TreeItem item = new TreeItem(tree, SWT.NONE);
+* item.setText("item " + i);
+* for (int j = 0; j &lt; 3; j++) {
+* TreeItem subItem = new TreeItem(item, SWT.NONE);
+* subItem.setText("item " + i + " " + j);
+* }
+* }
+*
+* final TreeEditor editor = new TreeEditor(tree);
+* //The editor must have the same size as the cell and must
+* //not be any smaller than 50 pixels.
+* editor.horizontalAlignment = SWT.LEFT;
+* editor.grabHorizontal = true;
+* editor.minimumWidth = 50;
+*
+* tree.addSelectionListener(new SelectionAdapter() {
+* public void widgetSelected(SelectionEvent e) {
+* // Clean up any previous editor control
+* Control oldEditor = editor.getEditor();
+* if (oldEditor != null) oldEditor.dispose();
+*
+* // Identify the selected row
+* TreeItem item = (TreeItem)e.item;
+* if (item == null) return;
+*
+* // The control that will be the editor must be a child of the Tree
+* Text newEditor = new Text(tree, SWT.NONE);
+* newEditor.setText(item.getText());
+* newEditor.addModifyListener(new ModifyListener() {
+* public void modifyText(ModifyEvent e) {
+* Text text = (Text)editor.getEditor();
+* editor.getItem().setText(text.getText());
+* }
+* });
+* newEditor.selectAll();
+* newEditor.setFocus();
+* editor.setEditor(newEditor, item);
+* }
+* });
+* </pre></code>
+*
+* @see <a href="http://www.eclipse.org/swt/snippets/#treeeditor">TreeEditor snippets</a>
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+*/
+public class TreeEditor extends ControlEditor {
+ Tree tree;
+ TreeItem item;
+ int column = 0;
+ ControlListener columnListener;
+ TreeListener treeListener;
+ Runnable timer;
+ static final int TIMEOUT = 1500;
+
+/**
+* Creates a TreeEditor for the specified Tree.
+*
+* @param tree the Tree Control above which this editor will be displayed
+*
+*/
+public TreeEditor (Tree tree) {
+ super(tree);
+ this.tree = tree;
+
+ columnListener = new ControlListener() {
+ public void controlMoved(ControlEvent e){
+ layout();
+ }
+ public void controlResized(ControlEvent e){
+ layout();
+ }
+ };
+ timer = new Runnable () {
+ public void run() {
+ layout ();
+ }
+ };
+ treeListener = new TreeListener () {
+ final Runnable runnable = new Runnable() {
+ public void run() {
+ if (editor == null || editor.isDisposed()) return;
+ if (TreeEditor.this.tree.isDisposed()) return;
+ layout();
+ editor.setVisible(true);
+ }
+ };
+ public void treeCollapsed(TreeEvent e) {
+ if (editor == null || editor.isDisposed ()) return;
+ editor.setVisible(false);
+ e.display.asyncExec(runnable);
+ }
+ public void treeExpanded(TreeEvent e) {
+ if (editor == null || editor.isDisposed ()) return;
+ editor.setVisible(false);
+ e.display.asyncExec(runnable);
+ }
+ };
+ tree.addTreeListener(treeListener);
+
+ // To be consistent with older versions of SWT, grabVertical defaults to true
+ grabVertical = true;
+}
+
+Rectangle computeBounds () {
+ if (item == null || column == -1 || item.isDisposed()) return new Rectangle(0, 0, 0, 0);
+ Rectangle cell = item.getBounds(column);
+ Rectangle rect = item.getImageBounds(column);
+ cell.x = rect.x + rect.width;
+ cell.width -= rect.width;
+ Rectangle area = tree.getClientArea();
+ if (cell.x < area.x + area.width) {
+ if (cell.x + cell.width > area.x + area.width) {
+ cell.width = area.x + area.width - cell.x;
+ }
+ }
+ Rectangle editorRect = new Rectangle(cell.x, cell.y, minimumWidth, minimumHeight);
+
+ if (grabHorizontal) {
+ if (tree.getColumnCount() == 0) {
+ // Bounds of tree item only include the text area - stretch out to include
+ // entire client area
+ cell.width = area.x + area.width - cell.x;
+ }
+ editorRect.width = Math.max(cell.width, minimumWidth);
+ }
+
+ if (grabVertical) {
+ editorRect.height = Math.max(cell.height, minimumHeight);
+ }
+
+ if (horizontalAlignment == SWT.RIGHT) {
+ editorRect.x += cell.width - editorRect.width;
+ } else if (horizontalAlignment == SWT.LEFT) {
+ // do nothing - cell.x is the right answer
+ } else { // default is CENTER
+ editorRect.x += (cell.width - editorRect.width)/2;
+ }
+ // don't let the editor overlap with the +/- of the tree
+ editorRect.x = Math.max(cell.x, editorRect.x);
+
+ if (verticalAlignment == SWT.BOTTOM) {
+ editorRect.y += cell.height - editorRect.height;
+ } else if (verticalAlignment == SWT.TOP) {
+ // do nothing - cell.y is the right answer
+ } else { // default is CENTER
+ editorRect.y += (cell.height - editorRect.height)/2;
+ }
+ return editorRect;
+}
+
+/**
+ * Removes all associations between the TreeEditor and the row in the tree. The
+ * tree and the editor Control are <b>not</b> disposed.
+ */
+public void dispose () {
+ if (tree != null && !tree.isDisposed()) {
+ if (this.column > -1 && this.column < tree.getColumnCount()){
+ TreeColumn treeColumn = tree.getColumn(this.column);
+ treeColumn.removeControlListener(columnListener);
+ }
+ if (treeListener != null) tree.removeTreeListener(treeListener);
+ }
+ columnListener = null;
+ treeListener = null;
+ tree = null;
+ item = null;
+ column = 0;
+ timer = null;
+ super.dispose();
+}
+
+/**
+* Returns the zero based index of the column of the cell being tracked by this editor.
+*
+* @return the zero based index of the column of the cell being tracked by this editor
+*
+* @since 3.1
+*/
+public int getColumn () {
+ return column;
+}
+
+/**
+* Returns the TreeItem for the row of the cell being tracked by this editor.
+*
+* @return the TreeItem for the row of the cell being tracked by this editor
+*/
+public TreeItem getItem () {
+ return item;
+}
+
+void resize () {
+ layout();
+ /*
+ * On some platforms, the table scrolls when an item that
+ * is partially visible at the bottom of the table is
+ * selected. Ensure that the correct row is edited by
+ * laying out one more time in a timerExec().
+ */
+ if (tree != null) {
+ Display display = tree.getDisplay();
+ display.timerExec(-1, timer);
+ display.timerExec(TIMEOUT, timer);
+ }
+}
+
+/**
+* Sets the zero based index of the column of the cell being tracked by this editor.
+*
+* @param column the zero based index of the column of the cell being tracked by this editor
+*
+* @since 3.1
+*/
+public void setColumn(int column) {
+ int columnCount = tree.getColumnCount();
+ // Separately handle the case where the tree has no TreeColumns.
+ // In this situation, there is a single default column.
+ if (columnCount == 0) {
+ this.column = (column == 0) ? 0 : -1;
+ resize();
+ return;
+ }
+ if (this.column > -1 && this.column < columnCount){
+ TreeColumn treeColumn = tree.getColumn(this.column);
+ treeColumn.removeControlListener(columnListener);
+ this.column = -1;
+ }
+
+ if (column < 0 || column >= tree.getColumnCount()) return;
+
+ this.column = column;
+ TreeColumn treeColumn = tree.getColumn(this.column);
+ treeColumn.addControlListener(columnListener);
+ resize();
+}
+
+/**
+* Specifies the <code>TreeItem</code> that is to be edited.
+*
+* @param item the item to be edited
+*/
+public void setItem (TreeItem item) {
+ this.item = item;
+ resize();
+}
+
+/**
+* Specify the Control that is to be displayed and the cell in the tree that it is to be positioned above.
+*
+* <p>Note: The Control provided as the editor <b>must</b> be created with its parent being the Tree control
+* specified in the TreeEditor constructor.
+*
+* @param editor the Control that is displayed above the cell being edited
+* @param item the TreeItem for the row of the cell being tracked by this editor
+* @param column the zero based index of the column of the cell being tracked by this editor
+*
+* @since 3.1
+*/
+public void setEditor (Control editor, TreeItem item, int column) {
+ setItem(item);
+ setColumn(column);
+ setEditor(editor);
+}
+public void setEditor (Control editor) {
+ super.setEditor(editor);
+ resize();
+}
+
+/**
+* Specify the Control that is to be displayed and the cell in the tree that it is to be positioned above.
+*
+* <p>Note: The Control provided as the editor <b>must</b> be created with its parent being the Tree control
+* specified in the TreeEditor constructor.
+*
+* @param editor the Control that is displayed above the cell being edited
+* @param item the TreeItem for the row of the cell being tracked by this editor
+*/
+public void setEditor (Control editor, TreeItem item) {
+ setItem(item);
+ setEditor(editor);
+}
+
+public void layout () {
+ if (tree == null || tree.isDisposed()) return;
+ if (item == null || item.isDisposed()) return;
+ int columnCount = tree.getColumnCount();
+ if (columnCount == 0 && column != 0) return;
+ if (columnCount > 0 && (column < 0 || column >= columnCount)) return;
+ super.layout();
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/VerifyKeyListener.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/VerifyKeyListener.java
new file mode 100755
index 0000000000..6d308aecf0
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/VerifyKeyListener.java
@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.events.*;
+import org.eclipse.swt.internal.SWTEventListener;
+
+/**
+ * Classes which implement this interface provide a method
+ * that deals with the event that is generated when a
+ * key is pressed.
+ *
+ * @see VerifyEvent
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public interface VerifyKeyListener extends SWTEventListener {
+/**
+ * The following event fields are used:<ul>
+ * <li>event.character is the character that was typed (input)</li>
+ * <li>event.keyCode is the key code that was typed (input)</li>
+ * <li>event.stateMask is the state of the keyboard (input)</li>
+ * <li>event.doit is processed or not (output)</li>
+ * </ul>
+ * @param event the verify event
+ * @see VerifyEvent
+ */
+public void verifyKey (VerifyEvent event);
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewForm.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewForm.java
new file mode 100755
index 0000000000..55c1915ff3
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewForm.java
@@ -0,0 +1,476 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.swt.*;
+
+/**
+ * Instances of this class implement a Composite that positions and sizes
+ * children and allows programmatic control of layout and border parameters.
+ * ViewForm is used in the workbench to lay out a view's label/menu/toolbar
+ * local bar.
+ * <p>
+ * Note that although this class is a subclass of <code>Composite</code>,
+ * it does not make sense to set a layout on it.
+ * </p><p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>BORDER, FLAT</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(None)</dd>
+ * </dl>
+ * <p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+
+public class ViewForm extends Composite {
+
+ /**
+ * marginWidth specifies the number of pixels of horizontal margin
+ * that will be placed along the left and right edges of the form.
+ *
+ * The default value is 0.
+ */
+ public int marginWidth = 0;
+ /**
+ * marginHeight specifies the number of pixels of vertical margin
+ * that will be placed along the top and bottom edges of the form.
+ *
+ * The default value is 0.
+ */
+ public int marginHeight = 0;
+ /**
+ * horizontalSpacing specifies the number of pixels between the right
+ * edge of one cell and the left edge of its neighbouring cell to
+ * the right.
+ *
+ * The default value is 1.
+ */
+ public int horizontalSpacing = 1;
+ /**
+ * verticalSpacing specifies the number of pixels between the bottom
+ * edge of one cell and the top edge of its neighbouring cell underneath.
+ *
+ * The default value is 1.
+ */
+ public int verticalSpacing = 1;
+
+ /**
+ * Color of innermost line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated
+ */
+ public static RGB borderInsideRGB = new RGB (132, 130, 132);
+ /**
+ * Color of middle line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated
+ */
+ public static RGB borderMiddleRGB = new RGB (143, 141, 138);
+ /**
+ * Color of outermost line of drop shadow border.
+ *
+ * NOTE This field is badly named and can not be fixed for backwards compatibility.
+ * It should be capitalized.
+ *
+ * @deprecated
+ */
+ public static RGB borderOutsideRGB = new RGB (171, 168, 165);
+
+ // SWT widgets
+ Control topLeft;
+ Control topCenter;
+ Control topRight;
+ Control content;
+
+ // Configuration and state info
+ boolean separateTopCenter = false;
+ boolean showBorder = false;
+
+ int separator = -1;
+ int borderTop = 0;
+ int borderBottom = 0;
+ int borderLeft = 0;
+ int borderRight = 0;
+ int highlight = 0;
+ Point oldSize;
+
+ Color selectionBackground;
+ Listener listener;
+
+ static final int OFFSCREEN = -200;
+ static final int BORDER1_COLOR = SWT.COLOR_WIDGET_NORMAL_SHADOW;
+ static final int SELECTION_BACKGROUND = SWT.COLOR_LIST_BACKGROUND;
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#BORDER
+ * @see SWT#FLAT
+ * @see #getStyle()
+ */
+public ViewForm(Composite parent, int style) {
+ super(parent, checkStyle(style));
+ super.setLayout(new ViewFormLayout());
+
+ setBorderVisible((style & SWT.BORDER) != 0);
+
+ listener = new Listener() {
+ public void handleEvent(Event e) {
+ switch (e.type) {
+ case SWT.Dispose: onDispose(e); break;
+ case SWT.Paint: onPaint(e.gc); break;
+ case SWT.Resize: onResize(); break;
+ }
+ }
+ };
+
+ int[] events = new int[] {SWT.Dispose, SWT.Paint, SWT.Resize};
+
+ for (int i = 0; i < events.length; i++) {
+ addListener(events[i], listener);
+ }
+}
+
+static int checkStyle (int style) {
+ int mask = SWT.FLAT | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
+ return style & mask | SWT.NO_REDRAW_RESIZE;
+}
+
+//protected void checkSubclass () {
+// String name = getClass().getName ();
+// String validName = ViewForm.class.getName();
+// if (!validName.equals(name)) {
+// SWT.error (SWT.ERROR_INVALID_SUBCLASS);
+// }
+//}
+
+public Rectangle computeTrim (int x, int y, int width, int height) {
+ checkWidget ();
+ int trimX = x - borderLeft - highlight;
+ int trimY = y - borderTop - highlight;
+ int trimWidth = width + borderLeft + borderRight + 2*highlight;
+ int trimHeight = height + borderTop + borderBottom + 2*highlight;
+ return new Rectangle(trimX, trimY, trimWidth, trimHeight);
+}
+public Rectangle getClientArea() {
+ checkWidget();
+ Rectangle clientArea = super.getClientArea();
+ clientArea.x += borderLeft;
+ clientArea.y += borderTop;
+ clientArea.width -= borderLeft + borderRight;
+ clientArea.height -= borderTop + borderBottom;
+ return clientArea;
+}
+/**
+* Returns the content area.
+*
+* @return the control in the content area of the pane or null
+*/
+public Control getContent() {
+ //checkWidget();
+ return content;
+}
+/**
+* Returns Control that appears in the top center of the pane.
+* Typically this is a toolbar.
+*
+* @return the control in the top center of the pane or null
+*/
+public Control getTopCenter() {
+ //checkWidget();
+ return topCenter;
+}
+/**
+* Returns the Control that appears in the top left corner of the pane.
+* Typically this is a label such as CLabel.
+*
+* @return the control in the top left corner of the pane or null
+*/
+public Control getTopLeft() {
+ //checkWidget();
+ return topLeft;
+}
+/**
+* Returns the control in the top right corner of the pane.
+* Typically this is a Close button or a composite with a Menu and Close button.
+*
+* @return the control in the top right corner of the pane or null
+*/
+public Control getTopRight() {
+ //checkWidget();
+ return topRight;
+}
+void onDispose(Event event) {
+ removeListener(SWT.Dispose, listener);
+ notifyListeners(SWT.Dispose, event);
+ event.type = SWT.None;
+
+ topLeft = null;
+ topCenter = null;
+ topRight = null;
+ content = null;
+ oldSize = null;
+ selectionBackground = null;
+}
+void onPaint(GC gc) {
+ Color gcForeground = gc.getForeground();
+ Point size = getSize();
+ Color border = getDisplay().getSystemColor(BORDER1_COLOR);
+ if (showBorder) {
+ gc.setForeground(border);
+ gc.drawRectangle(0, 0, size.x - 1, size.y - 1);
+ if (highlight > 0) {
+ int x1 = 1;
+ int y1 = 1;
+ int x2 = size.x - 1;
+ int y2 = size.y - 1;
+ int[] shape = new int[] {x1,y1, x2,y1, x2,y2, x1,y2, x1,y1+highlight,
+ x1+highlight,y1+highlight, x1+highlight,y2-highlight,
+ x2-highlight,y2-highlight, x2-highlight,y1+highlight, x1,y1+highlight};
+ Color highlightColor = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
+ gc.setBackground(highlightColor);
+ gc.fillPolygon(shape);
+ }
+ }
+ if (separator > -1) {
+ gc.setForeground(border);
+ gc.drawLine(borderLeft + highlight, separator, size.x - borderLeft - borderRight - highlight, separator);
+ }
+ gc.setForeground(gcForeground);
+}
+void onResize() {
+ Point size = getSize();
+ if (oldSize == null || oldSize.x == 0 || oldSize.y == 0) {
+ redraw();
+ } else {
+ int width = 0;
+ if (oldSize.x < size.x) {
+ width = size.x - oldSize.x + borderRight + highlight;
+ } else if (oldSize.x > size.x) {
+ width = borderRight + highlight;
+ }
+ redraw(size.x - width, 0, width, size.y, false);
+
+ int height = 0;
+ if (oldSize.y < size.y) {
+ height = size.y - oldSize.y + borderBottom + highlight;
+ }
+ if (oldSize.y > size.y) {
+ height = borderBottom + highlight;
+ }
+ redraw(0, size.y - height, size.x, height, false);
+ }
+ oldSize = size;
+}
+/**
+* Sets the content.
+* Setting the content to null will remove it from
+* the pane - however, the creator of the content must dispose of the content.
+*
+* @param content the control to be displayed in the content area or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this ViewForm</li>
+* </ul>
+*/
+public void setContent(Control content) {
+ checkWidget();
+ if (content != null && content.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (this.content != null && !this.content.isDisposed()) {
+ this.content.setBounds(OFFSCREEN, OFFSCREEN, 0, 0);
+ }
+ this.content = content;
+ layout(false);
+}
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ * <p>
+ * Note: No Layout can be set on this Control because it already
+ * manages the size and position of its children.
+ * </p>
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+ checkWidget();
+ return;
+}
+void setSelectionBackground (Color color) {
+ checkWidget();
+ if (selectionBackground == color) return;
+ if (color == null) color = getDisplay().getSystemColor(SELECTION_BACKGROUND);
+ selectionBackground = color;
+ redraw();
+}
+/**
+* Set the control that appears in the top center of the pane.
+* Typically this is a toolbar.
+* The topCenter is optional. Setting the topCenter to null will remove it from
+* the pane - however, the creator of the topCenter must dispose of the topCenter.
+*
+* @param topCenter the control to be displayed in the top center or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this ViewForm</li>
+* </ul>
+*/
+public void setTopCenter(Control topCenter) {
+ checkWidget();
+ if (topCenter != null && topCenter.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (this.topCenter != null && !this.topCenter.isDisposed()) {
+ Point size = this.topCenter.getSize();
+ this.topCenter.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ this.topCenter = topCenter;
+ layout(false);
+}
+/**
+* Set the control that appears in the top left corner of the pane.
+* Typically this is a label such as CLabel.
+* The topLeft is optional. Setting the top left control to null will remove it from
+* the pane - however, the creator of the control must dispose of the control.
+*
+* @param c the control to be displayed in the top left corner or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this ViewForm</li>
+* </ul>
+*/
+public void setTopLeft(Control c) {
+ checkWidget();
+ if (c != null && c.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (this.topLeft != null && !this.topLeft.isDisposed()) {
+ Point size = this.topLeft.getSize();
+ this.topLeft.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ this.topLeft = c;
+ layout(false);
+}
+/**
+* Set the control that appears in the top right corner of the pane.
+* Typically this is a Close button or a composite with a Menu and Close button.
+* The topRight is optional. Setting the top right control to null will remove it from
+* the pane - however, the creator of the control must dispose of the control.
+*
+* @param c the control to be displayed in the top right corner or null
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* <li>ERROR_INVALID_ARGUMENT - if the control is not a child of this ViewForm</li>
+* </ul>
+*/
+public void setTopRight(Control c) {
+ checkWidget();
+ if (c != null && c.getParent() != this) {
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ if (this.topRight != null && !this.topRight.isDisposed()) {
+ Point size = this.topRight.getSize();
+ this.topRight.setLocation(OFFSCREEN - size.x, OFFSCREEN - size.y);
+ }
+ this.topRight = c;
+ layout(false);
+}
+/**
+* Specify whether the border should be displayed or not.
+*
+* @param show true if the border should be displayed
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public void setBorderVisible(boolean show) {
+ checkWidget();
+ if (showBorder == show) return;
+
+ showBorder = show;
+ if (showBorder) {
+ borderLeft = borderTop = borderRight = borderBottom = 1;
+ if ((getStyle() & SWT.FLAT)== 0) highlight = 2;
+ } else {
+ borderBottom = borderTop = borderLeft = borderRight = 0;
+ highlight = 0;
+ }
+ layout(false);
+ redraw();
+}
+/**
+* If true, the topCenter will always appear on a separate line by itself, otherwise the
+* topCenter will appear in the top row if there is room and will be moved to the second row if
+* required.
+*
+* @param show true if the topCenter will always appear on a separate line by itself
+*
+* @exception SWTException <ul>
+* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public void setTopCenterSeparate(boolean show) {
+ checkWidget();
+ separateTopCenter = show;
+ layout(false);
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewFormLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewFormLayout.java
new file mode 100644
index 0000000000..18d4b6d421
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/ViewFormLayout.java
@@ -0,0 +1,211 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2009 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for ViewForm
+ *
+ * @see ViewForm
+ */
+class ViewFormLayout extends Layout {
+
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+ ViewForm form = (ViewForm)composite;
+ Control left = form.topLeft;
+ Control center = form.topCenter;
+ Control right = form.topRight;
+ Control content = form.content;
+
+ Point leftSize = new Point(0, 0);
+ if (left != null) {
+ leftSize = computeChildSize(left, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+ Point centerSize = new Point(0, 0);
+ if (center != null) {
+ centerSize = computeChildSize(center, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+ Point rightSize = new Point(0, 0);
+ if (right != null) {
+ rightSize = computeChildSize(right, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+ Point size = new Point(0, 0);
+ // calculate width of title bar
+ if (form.separateTopCenter ||
+ (wHint != SWT.DEFAULT && leftSize.x + centerSize.x + rightSize.x > wHint)) {
+ size.x = leftSize.x + rightSize.x;
+ if (leftSize.x > 0 && rightSize.x > 0) size.x += form.horizontalSpacing;
+ size.x = Math.max(centerSize.x, size.x);
+ size.y = Math.max(leftSize.y, rightSize.y);
+ if (center != null){
+ size.y += centerSize.y;
+ if (left != null ||right != null)size.y += form.verticalSpacing;
+ }
+ } else {
+ size.x = leftSize.x + centerSize.x + rightSize.x;
+ int count = -1;
+ if (leftSize.x > 0) count++;
+ if (centerSize.x > 0) count++;
+ if (rightSize.x > 0) count++;
+ if (count > 0) size.x += count * form.horizontalSpacing;
+ size.y = Math.max(leftSize.y, Math.max(centerSize.y, rightSize.y));
+ }
+
+ if (content != null) {
+ if (left != null || right != null || center != null) size.y += 1; // allow space for a vertical separator
+ Point contentSize = new Point(0, 0);
+ contentSize = computeChildSize(content, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ size.x = Math.max (size.x, contentSize.x);
+ size.y += contentSize.y;
+ if (size.y > contentSize.y) size.y += form.verticalSpacing;
+ }
+
+ size.x += 2*form.marginWidth;
+ size.y += 2*form.marginHeight;
+
+ if (wHint != SWT.DEFAULT) size.x = wHint;
+ if (hHint != SWT.DEFAULT) size.y = hHint;
+
+ return size;
+}
+
+Point computeChildSize(Control control, int wHint, int hHint, boolean flushCache) {
+ Object data = control.getLayoutData();
+ if (data == null || !(data instanceof CLayoutData)) {
+ data = new CLayoutData();
+ control.setLayoutData(data);
+ }
+ return ((CLayoutData)data).computeSize(control, wHint, hHint, flushCache);
+}
+
+int computeTrim(Control c) {
+ if (c instanceof Scrollable) {
+ Rectangle rect = ((Scrollable) c).computeTrim (0, 0, 0, 0);
+ return rect.width;
+ }
+ return c.getBorderWidth () * 2;
+}
+
+protected boolean flushCache(Control control) {
+ Object data = control.getLayoutData();
+ if (data != null && data instanceof CLayoutData) ((CLayoutData)data).flushCache();
+ return true;
+}
+
+protected void layout(Composite composite, boolean flushCache) {
+ ViewForm form = (ViewForm)composite;
+ Control left = form.topLeft;
+ Control center = form.topCenter;
+ Control right = form.topRight;
+ Control content = form.content;
+
+ Rectangle rect = composite.getClientArea();
+
+ Point leftSize = new Point(0, 0);
+ if (left != null && !left.isDisposed()) {
+ leftSize = computeChildSize(left, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+ Point centerSize = new Point(0, 0);
+ if (center != null && !center.isDisposed()) {
+ centerSize = computeChildSize(center, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+ Point rightSize = new Point(0, 0);
+ if (right != null && !right.isDisposed()) {
+ rightSize = computeChildSize(right, SWT.DEFAULT, SWT.DEFAULT, flushCache);
+ }
+
+ int minTopWidth = leftSize.x + centerSize.x + rightSize.x + 2*form.marginWidth + 2*form.highlight;
+ int count = -1;
+ if (leftSize.x > 0) count++;
+ if (centerSize.x > 0) count++;
+ if (rightSize.x > 0) count++;
+ if (count > 0) minTopWidth += count * form.horizontalSpacing;
+
+ int x = rect.x + rect.width - form.marginWidth - form.highlight;
+ int y = rect.y + form.marginHeight + form.highlight;
+
+ boolean top = false;
+ if (form.separateTopCenter || minTopWidth > rect.width) {
+ int topHeight = Math.max(rightSize.y, leftSize.y);
+ if (right != null && !right.isDisposed()) {
+ top = true;
+ x -= rightSize.x;
+ right.setBounds(x, y, rightSize.x, topHeight);
+ x -= form.horizontalSpacing;
+ }
+ if (left != null && !left.isDisposed()) {
+ top = true;
+ int trim = computeTrim(left);
+ int leftW = x - rect.x - form.marginWidth - form.highlight - trim;
+ leftSize = computeChildSize(left, leftW, SWT.DEFAULT, false);
+ left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight);
+ }
+ if (top) y += topHeight + form.verticalSpacing;
+ if (center != null && !center.isDisposed()) {
+ top = true;
+ int trim = computeTrim(center);
+ int w = rect.width - 2*form.marginWidth - 2*form.highlight - trim;
+ centerSize = computeChildSize(center, w, SWT.DEFAULT, false);
+ center.setBounds(rect.x + rect.width - form.marginWidth - form.highlight - centerSize.x, y, centerSize.x, centerSize.y);
+ y += centerSize.y + form.verticalSpacing;
+ }
+ } else {
+ int topHeight = Math.max(rightSize.y, Math.max(centerSize.y, leftSize.y));
+ if (right != null && !right.isDisposed()) {
+ top = true;
+ x -= rightSize.x;
+ right.setBounds(x, y, rightSize.x, topHeight);
+ x -= form.horizontalSpacing;
+ }
+ if (center != null && !center.isDisposed()) {
+ top = true;
+ x -= centerSize.x;
+ center.setBounds(x, y, centerSize.x, topHeight);
+ x -= form.horizontalSpacing;
+ }
+ if (left != null && !left.isDisposed()) {
+ top = true;
+ Rectangle trim = left instanceof Composite ? ((Composite)left).computeTrim(0, 0, 0, 0) : new Rectangle(0, 0, 0, 0);
+ int w = x - rect.x - form.marginWidth - form.highlight - trim.width;
+ int h = topHeight - trim.height;
+ leftSize = computeChildSize(left, w, h, false);
+ left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight);
+ }
+ if (top)y += topHeight + form.verticalSpacing;
+ }
+ int oldSeperator = form.separator;
+ form.separator = -1;
+ if (content != null && !content.isDisposed()) {
+ if (left != null || right!= null || center != null){
+ form.separator = y;
+ y++;
+ }
+ content.setBounds(rect.x + form.marginWidth + form.highlight, y, rect.width - 2 * form.marginWidth - 2*form.highlight, rect.y + rect.height - y - form.marginHeight - form.highlight);
+ }
+ if (oldSeperator != form.separator) {
+ int t, b;
+ if (oldSeperator == -1) {
+ t = form.separator;
+ b = form.separator + 1;
+ } else if (form.separator == -1) {
+ t = oldSeperator;
+ b = oldSeperator + 1;
+ } else {
+ t = Math.min(form.separator, oldSeperator);
+ b = Math.max(form.separator, oldSeperator);
+ }
+ form.redraw(form.borderLeft, t, form.getSize().x - form.borderLeft - form.borderRight, b - t, false);
+ }
+}
+}
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/package.html b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/package.html
new file mode 100755
index 0000000000..3011a3feef
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/package.html
@@ -0,0 +1,15 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+ <meta name="Author" content="IBM">
+ <title>Package-level Javadoc</title>
+</head>
+<body>
+SWT Custom widgets.
+<h2>
+Package Specification</h2>
+This package contains the custom widgets which were written to provide the
+standard look and feel of the Eclipse platform.
+</body>
+</html>

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