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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java | 506 |
1 files changed, 0 insertions, 506 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java b/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java deleted file mode 100755 index 2d8b5742c1..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/layout/RowLayout.java +++ /dev/null @@ -1,506 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.layout; - -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.widgets.*; - -/** - * Instances of this class determine the size and position of the - * children of a <code>Composite</code> by placing them either in - * horizontal rows or vertical columns within the parent <code>Composite</code>. - * <p> - * <code>RowLayout</code> aligns all controls in one row if the - * <code>type</code> is set to horizontal, and one column if it is - * set to vertical. It has the ability to wrap, and provides configurable - * margins and spacing. <code>RowLayout</code> has a number of configuration - * fields. In addition, the height and width of each control in a - * <code>RowLayout</code> can be specified by setting a <code>RowData</code> - * object into the control using <code>setLayoutData ()</code>. - * </p> - * <p> - * The following example code creates a <code>RowLayout</code>, sets all - * of its fields to non-default values, and then sets it into a - * <code>Shell</code>. - * <pre> - * RowLayout rowLayout = new RowLayout(); - * rowLayout.wrap = false; - * rowLayout.pack = false; - * rowLayout.justify = true; - * rowLayout.type = SWT.VERTICAL; - * rowLayout.marginLeft = 5; - * rowLayout.marginTop = 5; - * rowLayout.marginRight = 5; - * rowLayout.marginBottom = 5; - * rowLayout.spacing = 0; - * shell.setLayout(rowLayout); - * </pre> - * If you are using the default field values, you only need one line of code: - * <pre> - * shell.setLayout(new RowLayout()); - * </pre> - * </p> - * - * @see RowData - * @see <a href="http://www.eclipse.org/swt/snippets/#rowlayout">RowLayout snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: LayoutExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - */ -public final class RowLayout extends Layout { - - /** - * type specifies whether the layout places controls in rows or - * columns. - * - * The default value is HORIZONTAL. - * - * Possible values are: <ul> - * <li>HORIZONTAL: Position the controls horizontally from left to right</li> - * <li>VERTICAL: Position the controls vertically from top to bottom</li> - * </ul> - * - * @since 2.0 - */ - public int type = SWT.HORIZONTAL; - - /** - * marginWidth specifies the number of pixels of horizontal margin - * that will be placed along the left and right edges of the layout. - * - * The default value is 0. - * - * @since 3.0 - */ - public int marginWidth = 0; - - /** - * marginHeight specifies the number of pixels of vertical margin - * that will be placed along the top and bottom edges of the layout. - * - * The default value is 0. - * - * @since 3.0 - */ - public int marginHeight = 0; - - /** - * spacing specifies the number of pixels between the edge of one cell - * and the edge of its neighbouring cell. - * - * The default value is 3. - */ - public int spacing = 3; - - /** - * wrap specifies whether a control will be wrapped to the next - * row if there is insufficient space on the current row. - * - * The default value is true. - */ - public boolean wrap = true; - - /** - * pack specifies whether all controls in the layout take - * their preferred size. If pack is false, all controls will - * have the same size which is the size required to accommodate the - * largest preferred height and the largest preferred width of all - * the controls in the layout. - * - * The default value is true. - */ - public boolean pack = true; - - /** - * fill specifies whether the controls in a row should be - * all the same height for horizontal layouts, or the same - * width for vertical layouts. - * - * The default value is false. - * - * @since 3.0 - */ - public boolean fill = false; - - /** - * center specifies whether the controls in a row should be - * centered vertically in each cell for horizontal layouts, - * or centered horizontally in each cell for vertical layouts. - * - * The default value is false. - * - * @since 3.4 - */ - public boolean center = false; - - /** - * justify specifies whether the controls in a row should be - * fully justified, with any extra space placed between the controls. - * - * The default value is false. - */ - public boolean justify = false; - - /** - * marginLeft specifies the number of pixels of horizontal margin - * that will be placed along the left edge of the layout. - * - * The default value is 3. - */ - public int marginLeft = 3; - - /** - * marginTop specifies the number of pixels of vertical margin - * that will be placed along the top edge of the layout. - * - * The default value is 3. - */ - public int marginTop = 3; - - /** - * marginRight specifies the number of pixels of horizontal margin - * that will be placed along the right edge of the layout. - * - * The default value is 3. - */ - public int marginRight = 3; - - /** - * marginBottom specifies the number of pixels of vertical margin - * that will be placed along the bottom edge of the layout. - * - * The default value is 3. - */ - public int marginBottom = 3; - -/** - * Constructs a new instance of this class. - */ -public RowLayout () { -} - -/** - * Constructs a new instance of this class given the type. - * - * @param type the type of row layout - * - * @since 2.0 - */ -public RowLayout (int type) { - this.type = type; -} - -protected Point computeSize (Composite composite, int wHint, int hHint, boolean flushCache) { - Point extent; - if (type == SWT.HORIZONTAL) { - extent = layoutHorizontal (composite, false, (wHint != SWT.DEFAULT) && wrap, wHint, flushCache); - } else { - extent = layoutVertical (composite, false, (hHint != SWT.DEFAULT) && wrap, hHint, flushCache); - } - if (wHint != SWT.DEFAULT) extent.x = wHint; - if (hHint != SWT.DEFAULT) extent.y = hHint; - return extent; -} - -Point computeSize (Control control, boolean flushCache) { - int wHint = SWT.DEFAULT, hHint = SWT.DEFAULT; - RowData data = (RowData) control.getLayoutData (); - if (data != null) { - wHint = data.width; - hHint = data.height; - } - return control.computeSize (wHint, hHint, flushCache); -} - -protected boolean flushCache (Control control) { - return true; -} - -String getName () { - String string = getClass ().getName (); - int index = string.lastIndexOf ('.'); - if (index == -1) return string; - return string.substring (index + 1, string.length ()); -} - -protected void layout (Composite composite, boolean flushCache) { - Rectangle clientArea = composite.getClientArea (); - if (type == SWT.HORIZONTAL) { - layoutHorizontal (composite, true, wrap, clientArea.width, flushCache); - } else { - layoutVertical (composite, true, wrap, clientArea.height, flushCache); - } -} - -Point layoutHorizontal (Composite composite, boolean move, boolean wrap, int width, boolean flushCache) { - Control [] children = composite.getChildren (); - int count = 0; - for (int i=0; i<children.length; i++) { - Control control = children [i]; - RowData data = (RowData) control.getLayoutData (); - if (data == null || !data.exclude) { - children [count++] = children [i]; - } - } - if (count == 0) { - return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom); - } - int childWidth = 0, childHeight = 0, maxHeight = 0; - if (!pack) { - for (int i=0; i<count; i++) { - Control child = children [i]; - Point size = computeSize (child, flushCache); - childWidth = Math.max (childWidth, size.x); - childHeight = Math.max (childHeight, size.y); - } - maxHeight = childHeight; - } - int clientX = 0, clientY = 0; - if (move) { - Rectangle rect = composite.getClientArea (); - clientX = rect.x; - clientY = rect.y; - } - int [] wraps = null; - boolean wrapped = false; - Rectangle [] bounds = null; - if (move && (justify || fill || center)) { - bounds = new Rectangle [count]; - wraps = new int [count]; - } - int maxX = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight; - for (int i=0; i<count; i++) { - Control child = children [i]; - if (pack) { - Point size = computeSize (child, flushCache); - childWidth = size.x; - childHeight = size.y; - } - if (wrap && (i != 0) && (x + childWidth > width)) { - wrapped = true; - if (move && (justify || fill || center)) wraps [i - 1] = maxHeight; - x = marginLeft + marginWidth; - y += spacing + maxHeight; - if (pack) maxHeight = 0; - } - if (pack || fill || center) { - maxHeight = Math.max (maxHeight, childHeight); - } - if (move) { - int childX = x + clientX, childY = y + clientY; - if (justify || fill || center) { - bounds [i] = new Rectangle (childX, childY, childWidth, childHeight); - } else { - child.setBounds (childX, childY, childWidth, childHeight); - } - } - x += spacing + childWidth; - maxX = Math.max (maxX, x); - } - maxX = Math.max (clientX + marginLeft + marginWidth, maxX - spacing); - if (!wrapped) maxX += marginRight + marginWidth; - if (move && (justify || fill || center)) { - int space = 0, margin = 0; - if (!wrapped) { - space = Math.max (0, (width - maxX) / (count + 1)); - margin = Math.max (0, ((width - maxX) % (count + 1)) / 2); - } else { - if (fill || justify || center) { - int last = 0; - if (count > 0) wraps [count - 1] = maxHeight; - for (int i=0; i<count; i++) { - if (wraps [i] != 0) { - int wrapCount = i - last + 1; - if (justify) { - int wrapX = 0; - for (int j=last; j<=i; j++) { - wrapX += bounds [j].width + spacing; - } - space = Math.max (0, (width - wrapX) / (wrapCount + 1)); - margin = Math.max (0, ((width - wrapX) % (wrapCount + 1)) / 2); - } - for (int j=last; j<=i; j++) { - if (justify) bounds [j].x += (space * (j - last + 1)) + margin; - if (fill) { - bounds [j].height = wraps [i]; - } else { - if (center) { - bounds [j].y += Math.max (0, (wraps [i] - bounds [j].height) / 2); - } - } - } - last = i + 1; - } - } - } - } - for (int i=0; i<count; i++) { - if (!wrapped) { - if (justify) bounds [i].x += (space * (i + 1)) + margin; - if (fill) { - bounds [i].height = maxHeight; - } else { - if (center) { - bounds [i].y += Math.max (0, (maxHeight - bounds [i].height) / 2); - } - } - } - children [i].setBounds (bounds [i]); - } - } - return new Point (maxX, y + maxHeight + marginBottom + marginHeight); -} - -Point layoutVertical (Composite composite, boolean move, boolean wrap, int height, boolean flushCache) { - Control [] children = composite.getChildren (); - int count = 0; - for (int i=0; i<children.length; i++) { - Control control = children [i]; - RowData data = (RowData) control.getLayoutData (); - if (data == null || !data.exclude) { - children [count++] = children [i]; - } - } - if (count == 0) { - return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom); - } - int childWidth = 0, childHeight = 0, maxWidth = 0; - if (!pack) { - for (int i=0; i<count; i++) { - Control child = children [i]; - Point size = computeSize (child, flushCache); - childWidth = Math.max (childWidth, size.x); - childHeight = Math.max (childHeight, size.y); - } - maxWidth = childWidth; - } - int clientX = 0, clientY = 0; - if (move) { - Rectangle rect = composite.getClientArea (); - clientX = rect.x; - clientY = rect.y; - } - int [] wraps = null; - boolean wrapped = false; - Rectangle [] bounds = null; - if (move && (justify || fill || center)) { - bounds = new Rectangle [count]; - wraps = new int [count]; - } - int maxY = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight; - for (int i=0; i<count; i++) { - Control child = children [i]; - if (pack) { - Point size = computeSize (child, flushCache); - childWidth = size.x; - childHeight = size.y; - } - if (wrap && (i != 0) && (y + childHeight > height)) { - wrapped = true; - if (move && (justify || fill || center)) wraps [i - 1] = maxWidth; - x += spacing + maxWidth; - y = marginTop + marginHeight; - if (pack) maxWidth = 0; - } - if (pack || fill || center) { - maxWidth = Math.max (maxWidth, childWidth); - } - if (move) { - int childX = x + clientX, childY = y + clientY; - if (justify || fill || center) { - bounds [i] = new Rectangle (childX, childY, childWidth, childHeight); - } else { - child.setBounds (childX, childY, childWidth, childHeight); - } - } - y += spacing + childHeight; - maxY = Math.max (maxY, y); - } - maxY = Math.max (clientY + marginTop + marginHeight, maxY - spacing); - if (!wrapped) maxY += marginBottom + marginHeight; - if (move && (justify || fill || center)) { - int space = 0, margin = 0; - if (!wrapped) { - space = Math.max (0, (height - maxY) / (count + 1)); - margin = Math.max (0, ((height - maxY) % (count + 1)) / 2); - } else { - if (fill || justify || center) { - int last = 0; - if (count > 0) wraps [count - 1] = maxWidth; - for (int i=0; i<count; i++) { - if (wraps [i] != 0) { - int wrapCount = i - last + 1; - if (justify) { - int wrapY = 0; - for (int j=last; j<=i; j++) { - wrapY += bounds [j].height + spacing; - } - space = Math.max (0, (height - wrapY) / (wrapCount + 1)); - margin = Math.max (0, ((height - wrapY) % (wrapCount + 1)) / 2); - } - for (int j=last; j<=i; j++) { - if (justify) bounds [j].y += (space * (j - last + 1)) + margin; - if (fill) { - bounds [j].width = wraps [i]; - } else { - if (center) { - bounds [j].x += Math.max (0, (wraps [i] - bounds [j].width) / 2); - } - } - } - last = i + 1; - } - } - } - } - for (int i=0; i<count; i++) { - if (!wrapped) { - if (justify) bounds [i].y += (space * (i + 1)) + margin; - if (fill) { - bounds [i].width = maxWidth; - } else { - if (center) { - bounds [i].x += Math.max (0, (maxWidth - bounds [i].width) / 2); - } - } - - } - children [i].setBounds (bounds [i]); - } - } - return new Point (x + maxWidth + marginRight + marginWidth, maxY); -} - -/** - * Returns a string containing a concise, human-readable - * description of the receiver. - * - * @return a string representation of the layout - */ -public String toString () { - String string = getName ()+" {"; - string += "type="+((type != SWT.HORIZONTAL) ? "SWT.VERTICAL" : "SWT.HORIZONTAL")+" "; - if (marginWidth != 0) string += "marginWidth="+marginWidth+" "; - if (marginHeight != 0) string += "marginHeight="+marginHeight+" "; - if (marginLeft != 0) string += "marginLeft="+marginLeft+" "; - if (marginTop != 0) string += "marginTop="+marginTop+" "; - if (marginRight != 0) string += "marginRight="+marginRight+" "; - if (marginBottom != 0) string += "marginBottom="+marginBottom+" "; - if (spacing != 0) string += "spacing="+spacing+" "; - string += "wrap="+wrap+" "; - string += "pack="+pack+" "; - string += "fill="+fill+" "; - string += "justify="+justify+" "; - string = string.trim(); - string += "}"; - return string; -} -} |