diff options
Diffstat (limited to 'core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java')
-rw-r--r-- | core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java | 3002 |
1 files changed, 1501 insertions, 1501 deletions
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java index e4f308de5f7..18a52ee082d 100644 --- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java +++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/ImageCombo.java @@ -1,1502 +1,1502 @@ -/*******************************************************************************
- * Copyright (c) 2000, 2015 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
- * Tom Seidel - enhancements for image-handling
+/******************************************************************************* + * Copyright (c) 2000, 2015 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 + * Tom Seidel - enhancements for image-handling *******************************************************************************/ -package org.eclipse.cdt.internal.ui;
-
-import java.util.Arrays;
-
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.SWTException;
-import org.eclipse.swt.accessibility.ACC;
-import org.eclipse.swt.accessibility.AccessibleAdapter;
-import org.eclipse.swt.accessibility.AccessibleControlAdapter;
-import org.eclipse.swt.accessibility.AccessibleControlEvent;
-import org.eclipse.swt.accessibility.AccessibleEvent;
-import org.eclipse.swt.accessibility.AccessibleTextAdapter;
-import org.eclipse.swt.accessibility.AccessibleTextEvent;
-import org.eclipse.swt.events.ModifyListener;
-import org.eclipse.swt.events.SelectionEvent;
-import org.eclipse.swt.events.SelectionListener;
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Font;
-import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.widgets.Button;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Label;
-import org.eclipse.swt.widgets.Layout;
-import org.eclipse.swt.widgets.Listener;
-import org.eclipse.swt.widgets.Shell;
-import org.eclipse.swt.widgets.Table;
-import org.eclipse.swt.widgets.TableItem;
-import org.eclipse.swt.widgets.Text;
-import org.eclipse.swt.widgets.TypedListener;
-import org.eclipse.swt.widgets.Widget;
-
-/**
- * The ImageCombo class represents a selectable user interface object
- * that combines a text field and a table and issues notification
- * when an item is selected from the table.
- * <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>Selection</dd>
- * </dl>
- */
-public final class ImageCombo extends Composite {
-
- Text text;
- Table table;
- int visibleItemCount = 5;
- Shell popup;
- Button arrow;
- boolean hasFocus;
- Listener listener, filter;
- Color foreground, background;
- Font font;
-
-/**
- * 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 ImageCombo (Composite parent, int style) {
- super (parent, style = checkStyle (style));
-
- 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, SWT.NONE);
- int arrowStyle = SWT.ARROW | SWT.DOWN;
- if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT;
- arrow = new Button (this, arrowStyle);
-
- listener = new Listener () {
- @Override
- public void handleEvent (Event event) {
- if (popup == event.widget) {
- popupEvent (event);
- return;
- }
- if (text == event.widget) {
- textEvent (event);
- return;
- }
- if (table == event.widget) {
- listEvent (event);
- return;
- }
- if (arrow == event.widget) {
- arrowEvent (event);
- return;
- }
- if (ImageCombo.this == event.widget) {
- comboEvent (event);
- return;
- }
- if (getShell () == event.widget) {
- handleFocus (SWT.FocusOut);
- }
- }
- };
- filter = new Listener() {
- @Override
- public void handleEvent(Event event) {
- Shell shell = ((Control)event.widget).getShell ();
- if (shell == ImageCombo.this.getShell ()) {
- handleFocus (SWT.FocusOut);
- }
- }
- };
-
- int [] comboEvents = {SWT.Dispose, SWT.Move, SWT.Resize};
- for (int i=0; i<comboEvents.length; i++) this.addListener (comboEvents [i], listener);
-
- int [] textEvents = {SWT.KeyDown, SWT.KeyUp, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn};
- for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener);
-
- int [] arrowEvents = {SWT.Selection, SWT.FocusIn};
- for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], listener);
-
- createPopup( -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 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, Image image) {
- checkWidget();
- if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
- TableItem newItem = new TableItem(this.table,SWT.NONE);
- newItem.setText(string);
- if (image != null) newItem.setImage(image);
-}
-/**
- * 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,Image image, int index) {
- checkWidget();
- if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
- TableItem newItem = new TableItem(this.table,SWT.NONE,index);
- if (image != null) newItem.setImage(image);
-}
-/**
- * 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 receiver's selection changes, 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
- *
- * @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 arrowEvent (Event event) {
- switch (event.type) {
- case SWT.FocusIn: {
- handleFocus (SWT.FocusIn);
- break;
- }
- case SWT.Selection: {
- dropDown (!isDropped ());
- break;
- }
- }
-}
-/**
- * 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 ();
- table.deselectAll ();
-}
-void comboEvent (Event event) {
- switch (event.type) {
- case SWT.Dispose:
- if (popup != null && !popup.isDisposed ()) {
- table.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;
- table = null;
- arrow = null;
- break;
- case SWT.Move:
- dropDown (false);
- break;
- case SWT.Resize:
- internalLayout (false);
- break;
- }
-}
-
-@Override
-public Point computeSize (int wHint, int hHint, boolean changed) {
- checkWidget ();
- int width = 0, height = 0;
- String[] items = getStringsFromTable();
- int textWidth = 0;
- GC gc = new GC (text);
- int spacer = gc.stringExtent (" ").x; //$NON-NLS-1$
- 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 = table.computeSize (wHint, SWT.DEFAULT, changed);
- int borderWidth = getBorderWidth ();
-
- height = Math.max (hHint, Math.max (textSize.y, arrowSize.y) + 2*borderWidth);
- width = Math.max (wHint, Math.max (textWidth + 2*spacer + arrowSize.x + 2*borderWidth, listSize.x));
- return new Point (width, height);
-}
-void createPopup(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;
- // create a table instead of a list.
- table = new Table (popup, listStyle);
- if (font != null) table.setFont (font);
- if (foreground != null) table.setForeground (foreground);
- if (background != null) table.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++) table.addListener (listEvents [i], listener);
-
- if (selectionIndex != -1) table.setSelection (selectionIndex);
-}
-/**
- * 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 ();
- table.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 ();
- table.deselectAll ();
-}
-void dropDown (boolean drop) {
- if (drop == isDropped ()) return;
- if (!drop) {
- popup.setVisible (false);
- if (!isDisposed ()&& arrow.isFocusControl()) {
- text.setFocus();
- }
- return;
- }
-
- if (getShell() != popup.getParent ()) {
- TableItem[] items = table.getItems ();
- int selectionIndex = table.getSelectionIndex ();
- table.removeListener (SWT.Dispose, listener);
- popup.dispose();
- popup = null;
- table = null;
- createPopup (selectionIndex);
- }
-
- Point size = getSize ();
- int itemCount = table.getItemCount ();
- itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount);
- int itemHeight = table.getItemHeight () * itemCount;
- Point listSize = table.computeSize (SWT.DEFAULT, itemHeight, false);
- table.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y);
-
- int index = table.getSelectionIndex ();
- if (index != -1) table.setTopIndex (index);
- Display display = getDisplay ();
- Rectangle listRect = table.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;
- popup.setBounds (x, y, width, height);
- popup.setVisible (true);
- table.setFocus ();
-}
-/*
- * 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] == ImageCombo.this) {
- if (i > 0 && siblings [i-1] instanceof Label) {
- return (Label) siblings [i-1];
- }
- }
- }
- return null;
-}
-@Override
-public Control [] getChildren () {
- checkWidget();
- return new Control [0];
-}
-/**
- * Gets the editable state.
- *
- * @return whether or not the reciever 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 TableItem getItem (int index) {
- checkWidget();
- return this.table.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 table.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 table.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 TableItem [] getItems () {
- checkWidget ();
- return table.getItems ();
-}
-char getMnemonic (String string) {
- 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 string.charAt (index);
- index++;
- } while (index < length);
- return '\0';
-}
-
-String [] getStringsFromTable()
-{
- String[] items = new String[this.table.getItems().length];
- for (int i = 0, n = items.length; i < n; i++) {
- items[i]=this.table.getItem(i).getText();
- }
- return items;
-}
-/**
- * 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 table.getSelectionIndex ();
-}
-@Override
-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) {
- if (isDisposed ()) return;
- 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 == table || 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 Arrays.asList(getStringsFromTable()).indexOf (string);
-}
-
-
-void initAccessible() {
- AccessibleAdapter accessibleAdapter = new AccessibleAdapter () {
- @Override
- public void getName (AccessibleEvent e) {
- String name = null;
- Label label = getAssociatedLabel ();
- if (label != null) {
- name = stripMnemonic (label.getText());
- }
- e.result = name;
- }
- @Override
- public void getKeyboardShortcut(AccessibleEvent e) {
- String shortcut = null;
- Label label = getAssociatedLabel ();
- if (label != null) {
- String text = label.getText ();
- if (text != null) {
- char mnemonic = getMnemonic (text);
- if (mnemonic != '\0') {
- shortcut = "Alt+"+mnemonic; //$NON-NLS-1$
- }
- }
- }
- e.result = shortcut;
- }
- @Override
- public void getHelp (AccessibleEvent e) {
- e.result = getToolTipText ();
- }
- };
- getAccessible ().addAccessibleListener (accessibleAdapter);
- text.getAccessible ().addAccessibleListener (accessibleAdapter);
- table.getAccessible ().addAccessibleListener (accessibleAdapter);
-
- arrow.getAccessible ().addAccessibleListener (new AccessibleAdapter() {
- @Override
- public void getName (AccessibleEvent e) {
- e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$
- }
- @Override
- public void getKeyboardShortcut (AccessibleEvent e) {
- e.result = "Alt+Down Arrow"; //$NON-NLS-1$
- }
- @Override
- public void getHelp (AccessibleEvent e) {
- e.result = getToolTipText ();
- }
- });
-
- getAccessible().addAccessibleTextListener (new AccessibleTextAdapter() {
- @Override
- public void getCaretOffset (AccessibleTextEvent e) {
- e.offset = text.getCaretPosition ();
- }
- });
-
- getAccessible().addAccessibleControlListener (new AccessibleControlAdapter() {
- @Override
- public void getChildAtPoint (AccessibleControlEvent e) {
- Point testPoint = toControl (e.x, e.y);
- if (getBounds ().contains (testPoint)) {
- e.childID = ACC.CHILDID_SELF;
- }
- }
-
- @Override
- public void getLocation (AccessibleControlEvent e) {
- Rectangle location = getBounds ();
- Point pt = toDisplay (location.x, location.y);
- e.x = pt.x;
- e.y = pt.y;
- e.width = location.width;
- e.height = location.height;
- }
-
- @Override
- public void getChildCount (AccessibleControlEvent e) {
- e.detail = 0;
- }
-
- @Override
- public void getRole (AccessibleControlEvent e) {
- e.detail = ACC.ROLE_COMBOBOX;
- }
-
- @Override
- public void getState (AccessibleControlEvent e) {
- e.detail = ACC.STATE_NORMAL;
- }
-
- @Override
- public void getValue (AccessibleControlEvent e) {
- e.result = getText ();
- }
- });
-
- text.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter () {
- @Override
- public void getRole (AccessibleControlEvent e) {
- e.detail = text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL;
- }
- });
-
- arrow.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter() {
- @Override
- 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 ();
-}
-@Override
-public boolean isFocusControl () {
- checkWidget();
- if (text.isFocusControl () || arrow.isFocusControl () || table.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 ()) {
- TableItem[] items = table.getItems ();
- int selectionIndex = table.getSelectionIndex ();
- popup = null;
- table = null;
- createPopup (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 = table.getSelectionIndex ();
- if (index == -1) return;
- text.setText (table.getItem (index).getText());
- text.selectAll ();
- table.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;
- }
- 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;
-
- }
- }
-}
-
-void popupEvent(Event event) {
- switch (event.type) {
- case SWT.Paint:
- // draw black rectangle around list
- Rectangle listRect = table.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:
- dropDown (false);
- break;
- }
-}
-@Override
-public void redraw () {
- super.redraw();
- text.redraw();
- arrow.redraw();
- if (popup.isVisible()) table.redraw();
-}
-@Override
-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();
- table.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();
- table.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);
- int index = -1;
- for (int i = 0, n = table.getItemCount(); i < n; i++) {
- if (table.getItem(i).getText().equals(string)) {
- index = i;
- break;
- }
- }
- remove(index);
-}
-/**
- * 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 (""); //$NON-NLS-1$
- table.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 receiver's selection changes.
- *
- * @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);
-}
-/**
- * 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) {
- table.deselectAll ();
- text.setText (""); //$NON-NLS-1$
- return;
- }
- if (0 <= index && index < table.getItemCount()) {
- if (index != getSelectionIndex()) {
- text.setText (table.getItem (index).getText());
- text.selectAll ();
- table.select (index);
- table.showSelection ();
- }
- }
-}
-@Override
-public void setBackground (Color color) {
- super.setBackground(color);
- background = color;
- if (text != null) text.setBackground(color);
- if (table != null) table.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);
-}
-@Override
-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);
-}
-@Override
-public boolean setFocus () {
- checkWidget();
- return text.setFocus ();
-}
-@Override
-public void setFont (Font font) {
- super.setFont (font);
- this.font = font;
- text.setFont (font);
- table.setFont (font);
- internalLayout (true);
-}
-@Override
-public void setForeground (Color color) {
- super.setForeground(color);
- foreground = color;
- if (text != null) text.setForeground(color);
- if (table != null) table.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, Image image) {
- checkWidget();
- remove(index);
- add(string,image,index);
-}
-/**
- * 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 ();
- this.table.removeAll();
- for (int i = 0, n = items.length; i < n; i++) {
- add(items[i],null);
- }
- 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>
- */
-@Override
-public void setLayout (Layout layout) {
- checkWidget ();
- return;
-}
-/**
- * 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 = -1;
- for (int i = 0, n = table.getItemCount(); i < n; i++) {
- if (table.getItem(i).getText().equals(string)) {
- index = i;
- break;
- }
- }
- if (index == -1) {
- table.deselectAll ();
- text.setText (string);
- return;
- }
- text.setText (string);
- text.selectAll ();
- table.setSelection (index);
- table.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);
-}
-
-@Override
-public void setToolTipText (String string) {
- checkWidget();
- super.setToolTipText(string);
- arrow.setToolTipText (string);
- text.setToolTipText (string);
-}
-
-@Override
-public void setVisible (boolean visible) {
- super.setVisible(visible);
- 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.KeyDown: {
- if (event.character == SWT.CR) {
- 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;
-
- 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);
- }
- //At this point the widget may have been disposed.
- // If so, do not continue.
- if (isDisposed ()) break;
- }
-
- // Further work : Need to add support for incremental search in
- // pop up list as characters typed in text widget
-
- 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;
- }
- 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.Modify: {
- table.deselectAll ();
- Event e = new Event ();
- e.time = event.time;
- notifyListeners (SWT.Modify, e);
- break;
- }
- case SWT.MouseDown: {
- if (event.button != 1) return;
- if (text.getEditable ()) return;
- boolean dropped = isDropped ();
- text.selectAll ();
- if (!dropped) setFocus ();
- dropDown (!dropped);
- break;
- }
- case SWT.MouseUp: {
- if (event.button != 1) return;
- if (text.getEditable ()) return;
- text.selectAll ();
- break;
- }
- case SWT.Traverse: {
- switch (event.detail) {
- case SWT.TRAVERSE_RETURN:
- 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;
- }
-
- 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;
- }
- }
-}
-}
+package org.eclipse.cdt.internal.ui; + +import java.util.Arrays; + +import org.eclipse.swt.SWT; +import org.eclipse.swt.SWTException; +import org.eclipse.swt.accessibility.ACC; +import org.eclipse.swt.accessibility.AccessibleAdapter; +import org.eclipse.swt.accessibility.AccessibleControlAdapter; +import org.eclipse.swt.accessibility.AccessibleControlEvent; +import org.eclipse.swt.accessibility.AccessibleEvent; +import org.eclipse.swt.accessibility.AccessibleTextAdapter; +import org.eclipse.swt.accessibility.AccessibleTextEvent; +import org.eclipse.swt.events.ModifyListener; +import org.eclipse.swt.events.SelectionEvent; +import org.eclipse.swt.events.SelectionListener; +import org.eclipse.swt.graphics.Color; +import org.eclipse.swt.graphics.Font; +import org.eclipse.swt.graphics.GC; +import org.eclipse.swt.graphics.Image; +import org.eclipse.swt.graphics.Point; +import org.eclipse.swt.graphics.Rectangle; +import org.eclipse.swt.widgets.Button; +import org.eclipse.swt.widgets.Composite; +import org.eclipse.swt.widgets.Control; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Event; +import org.eclipse.swt.widgets.Label; +import org.eclipse.swt.widgets.Layout; +import org.eclipse.swt.widgets.Listener; +import org.eclipse.swt.widgets.Shell; +import org.eclipse.swt.widgets.Table; +import org.eclipse.swt.widgets.TableItem; +import org.eclipse.swt.widgets.Text; +import org.eclipse.swt.widgets.TypedListener; +import org.eclipse.swt.widgets.Widget; + +/** + * The ImageCombo class represents a selectable user interface object + * that combines a text field and a table and issues notification + * when an item is selected from the table. + * <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>Selection</dd> + * </dl> + */ +public final class ImageCombo extends Composite { + + Text text; + Table table; + int visibleItemCount = 5; + Shell popup; + Button arrow; + boolean hasFocus; + Listener listener, filter; + Color foreground, background; + Font font; + +/** + * 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 ImageCombo (Composite parent, int style) { + super (parent, style = checkStyle (style)); + + 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, SWT.NONE); + int arrowStyle = SWT.ARROW | SWT.DOWN; + if ((style & SWT.FLAT) != 0) arrowStyle |= SWT.FLAT; + arrow = new Button (this, arrowStyle); + + listener = new Listener () { + @Override + public void handleEvent (Event event) { + if (popup == event.widget) { + popupEvent (event); + return; + } + if (text == event.widget) { + textEvent (event); + return; + } + if (table == event.widget) { + listEvent (event); + return; + } + if (arrow == event.widget) { + arrowEvent (event); + return; + } + if (ImageCombo.this == event.widget) { + comboEvent (event); + return; + } + if (getShell () == event.widget) { + handleFocus (SWT.FocusOut); + } + } + }; + filter = new Listener() { + @Override + public void handleEvent(Event event) { + Shell shell = ((Control)event.widget).getShell (); + if (shell == ImageCombo.this.getShell ()) { + handleFocus (SWT.FocusOut); + } + } + }; + + int [] comboEvents = {SWT.Dispose, SWT.Move, SWT.Resize}; + for (int i=0; i<comboEvents.length; i++) this.addListener (comboEvents [i], listener); + + int [] textEvents = {SWT.KeyDown, SWT.KeyUp, SWT.Modify, SWT.MouseDown, SWT.MouseUp, SWT.Traverse, SWT.FocusIn}; + for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener); + + int [] arrowEvents = {SWT.Selection, SWT.FocusIn}; + for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], listener); + + createPopup( -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 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, Image image) { + checkWidget(); + if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); + TableItem newItem = new TableItem(this.table,SWT.NONE); + newItem.setText(string); + if (image != null) newItem.setImage(image); +} +/** + * 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,Image image, int index) { + checkWidget(); + if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); + TableItem newItem = new TableItem(this.table,SWT.NONE,index); + if (image != null) newItem.setImage(image); +} +/** + * 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 receiver's selection changes, 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 + * + * @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 arrowEvent (Event event) { + switch (event.type) { + case SWT.FocusIn: { + handleFocus (SWT.FocusIn); + break; + } + case SWT.Selection: { + dropDown (!isDropped ()); + break; + } + } +} +/** + * 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 (); + table.deselectAll (); +} +void comboEvent (Event event) { + switch (event.type) { + case SWT.Dispose: + if (popup != null && !popup.isDisposed ()) { + table.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; + table = null; + arrow = null; + break; + case SWT.Move: + dropDown (false); + break; + case SWT.Resize: + internalLayout (false); + break; + } +} + +@Override +public Point computeSize (int wHint, int hHint, boolean changed) { + checkWidget (); + int width = 0, height = 0; + String[] items = getStringsFromTable(); + int textWidth = 0; + GC gc = new GC (text); + int spacer = gc.stringExtent (" ").x; //$NON-NLS-1$ + 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 = table.computeSize (wHint, SWT.DEFAULT, changed); + int borderWidth = getBorderWidth (); + + height = Math.max (hHint, Math.max (textSize.y, arrowSize.y) + 2*borderWidth); + width = Math.max (wHint, Math.max (textWidth + 2*spacer + arrowSize.x + 2*borderWidth, listSize.x)); + return new Point (width, height); +} +void createPopup(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; + // create a table instead of a list. + table = new Table (popup, listStyle); + if (font != null) table.setFont (font); + if (foreground != null) table.setForeground (foreground); + if (background != null) table.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++) table.addListener (listEvents [i], listener); + + if (selectionIndex != -1) table.setSelection (selectionIndex); +} +/** + * 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 (); + table.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 (); + table.deselectAll (); +} +void dropDown (boolean drop) { + if (drop == isDropped ()) return; + if (!drop) { + popup.setVisible (false); + if (!isDisposed ()&& arrow.isFocusControl()) { + text.setFocus(); + } + return; + } + + if (getShell() != popup.getParent ()) { + TableItem[] items = table.getItems (); + int selectionIndex = table.getSelectionIndex (); + table.removeListener (SWT.Dispose, listener); + popup.dispose(); + popup = null; + table = null; + createPopup (selectionIndex); + } + + Point size = getSize (); + int itemCount = table.getItemCount (); + itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount); + int itemHeight = table.getItemHeight () * itemCount; + Point listSize = table.computeSize (SWT.DEFAULT, itemHeight, false); + table.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y); + + int index = table.getSelectionIndex (); + if (index != -1) table.setTopIndex (index); + Display display = getDisplay (); + Rectangle listRect = table.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; + popup.setBounds (x, y, width, height); + popup.setVisible (true); + table.setFocus (); +} +/* + * 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] == ImageCombo.this) { + if (i > 0 && siblings [i-1] instanceof Label) { + return (Label) siblings [i-1]; + } + } + } + return null; +} +@Override +public Control [] getChildren () { + checkWidget(); + return new Control [0]; +} +/** + * Gets the editable state. + * + * @return whether or not the reciever 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 TableItem getItem (int index) { + checkWidget(); + return this.table.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 table.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 table.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 TableItem [] getItems () { + checkWidget (); + return table.getItems (); +} +char getMnemonic (String string) { + 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 string.charAt (index); + index++; + } while (index < length); + return '\0'; +} + +String [] getStringsFromTable() +{ + String[] items = new String[this.table.getItems().length]; + for (int i = 0, n = items.length; i < n; i++) { + items[i]=this.table.getItem(i).getText(); + } + return items; +} +/** + * 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 table.getSelectionIndex (); +} +@Override +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) { + if (isDisposed ()) return; + 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 == table || 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 Arrays.asList(getStringsFromTable()).indexOf (string); +} + + +void initAccessible() { + AccessibleAdapter accessibleAdapter = new AccessibleAdapter () { + @Override + public void getName (AccessibleEvent e) { + String name = null; + Label label = getAssociatedLabel (); + if (label != null) { + name = stripMnemonic (label.getText()); + } + e.result = name; + } + @Override + public void getKeyboardShortcut(AccessibleEvent e) { + String shortcut = null; + Label label = getAssociatedLabel (); + if (label != null) { + String text = label.getText (); + if (text != null) { + char mnemonic = getMnemonic (text); + if (mnemonic != '\0') { + shortcut = "Alt+"+mnemonic; //$NON-NLS-1$ + } + } + } + e.result = shortcut; + } + @Override + public void getHelp (AccessibleEvent e) { + e.result = getToolTipText (); + } + }; + getAccessible ().addAccessibleListener (accessibleAdapter); + text.getAccessible ().addAccessibleListener (accessibleAdapter); + table.getAccessible ().addAccessibleListener (accessibleAdapter); + + arrow.getAccessible ().addAccessibleListener (new AccessibleAdapter() { + @Override + public void getName (AccessibleEvent e) { + e.result = isDropped () ? SWT.getMessage ("SWT_Close") : SWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ + } + @Override + public void getKeyboardShortcut (AccessibleEvent e) { + e.result = "Alt+Down Arrow"; //$NON-NLS-1$ + } + @Override + public void getHelp (AccessibleEvent e) { + e.result = getToolTipText (); + } + }); + + getAccessible().addAccessibleTextListener (new AccessibleTextAdapter() { + @Override + public void getCaretOffset (AccessibleTextEvent e) { + e.offset = text.getCaretPosition (); + } + }); + + getAccessible().addAccessibleControlListener (new AccessibleControlAdapter() { + @Override + public void getChildAtPoint (AccessibleControlEvent e) { + Point testPoint = toControl (e.x, e.y); + if (getBounds ().contains (testPoint)) { + e.childID = ACC.CHILDID_SELF; + } + } + + @Override + public void getLocation (AccessibleControlEvent e) { + Rectangle location = getBounds (); + Point pt = toDisplay (location.x, location.y); + e.x = pt.x; + e.y = pt.y; + e.width = location.width; + e.height = location.height; + } + + @Override + public void getChildCount (AccessibleControlEvent e) { + e.detail = 0; + } + + @Override + public void getRole (AccessibleControlEvent e) { + e.detail = ACC.ROLE_COMBOBOX; + } + + @Override + public void getState (AccessibleControlEvent e) { + e.detail = ACC.STATE_NORMAL; + } + + @Override + public void getValue (AccessibleControlEvent e) { + e.result = getText (); + } + }); + + text.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter () { + @Override + public void getRole (AccessibleControlEvent e) { + e.detail = text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL; + } + }); + + arrow.getAccessible ().addAccessibleControlListener (new AccessibleControlAdapter() { + @Override + 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 (); +} +@Override +public boolean isFocusControl () { + checkWidget(); + if (text.isFocusControl () || arrow.isFocusControl () || table.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 ()) { + TableItem[] items = table.getItems (); + int selectionIndex = table.getSelectionIndex (); + popup = null; + table = null; + createPopup (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 = table.getSelectionIndex (); + if (index == -1) return; + text.setText (table.getItem (index).getText()); + text.selectAll (); + table.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; + } + 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; + + } + } +} + +void popupEvent(Event event) { + switch (event.type) { + case SWT.Paint: + // draw black rectangle around list + Rectangle listRect = table.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: + dropDown (false); + break; + } +} +@Override +public void redraw () { + super.redraw(); + text.redraw(); + arrow.redraw(); + if (popup.isVisible()) table.redraw(); +} +@Override +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(); + table.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(); + table.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); + int index = -1; + for (int i = 0, n = table.getItemCount(); i < n; i++) { + if (table.getItem(i).getText().equals(string)) { + index = i; + break; + } + } + remove(index); +} +/** + * 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 (""); //$NON-NLS-1$ + table.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 receiver's selection changes. + * + * @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); +} +/** + * 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) { + table.deselectAll (); + text.setText (""); //$NON-NLS-1$ + return; + } + if (0 <= index && index < table.getItemCount()) { + if (index != getSelectionIndex()) { + text.setText (table.getItem (index).getText()); + text.selectAll (); + table.select (index); + table.showSelection (); + } + } +} +@Override +public void setBackground (Color color) { + super.setBackground(color); + background = color; + if (text != null) text.setBackground(color); + if (table != null) table.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); +} +@Override +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); +} +@Override +public boolean setFocus () { + checkWidget(); + return text.setFocus (); +} +@Override +public void setFont (Font font) { + super.setFont (font); + this.font = font; + text.setFont (font); + table.setFont (font); + internalLayout (true); +} +@Override +public void setForeground (Color color) { + super.setForeground(color); + foreground = color; + if (text != null) text.setForeground(color); + if (table != null) table.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, Image image) { + checkWidget(); + remove(index); + add(string,image,index); +} +/** + * 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 (); + this.table.removeAll(); + for (int i = 0, n = items.length; i < n; i++) { + add(items[i],null); + } + 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> + */ +@Override +public void setLayout (Layout layout) { + checkWidget (); + return; +} +/** + * 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 = -1; + for (int i = 0, n = table.getItemCount(); i < n; i++) { + if (table.getItem(i).getText().equals(string)) { + index = i; + break; + } + } + if (index == -1) { + table.deselectAll (); + text.setText (string); + return; + } + text.setText (string); + text.selectAll (); + table.setSelection (index); + table.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); +} + +@Override +public void setToolTipText (String string) { + checkWidget(); + super.setToolTipText(string); + arrow.setToolTipText (string); + text.setToolTipText (string); +} + +@Override +public void setVisible (boolean visible) { + super.setVisible(visible); + 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.KeyDown: { + if (event.character == SWT.CR) { + 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; + + 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); + } + //At this point the widget may have been disposed. + // If so, do not continue. + if (isDisposed ()) break; + } + + // Further work : Need to add support for incremental search in + // pop up list as characters typed in text widget + + 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; + } + 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.Modify: { + table.deselectAll (); + Event e = new Event (); + e.time = event.time; + notifyListeners (SWT.Modify, e); + break; + } + case SWT.MouseDown: { + if (event.button != 1) return; + if (text.getEditable ()) return; + boolean dropped = isDropped (); + text.selectAll (); + if (!dropped) setFocus (); + dropDown (!dropped); + break; + } + case SWT.MouseUp: { + if (event.button != 1) return; + if (text.getEditable ()) return; + text.selectAll (); + break; + } + case SWT.Traverse: { + switch (event.detail) { + case SWT.TRAVERSE_RETURN: + 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; + } + + 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; + } + } +} +} |