Mercurial > projects > dwt-win
annotate dwt/custom/StackLayout.d @ 212:ab60f3309436
reverted the char[] to String and use the an alias.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:12:38 +0200 |
| parents | a5afe31f5cdd |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 155 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.custom.StackLayout; | |
| 14 | |
| 15 | |
| 16 | |
| 17 import dwt.DWT; | |
| 18 import dwt.graphics.Point; | |
| 19 import dwt.graphics.Rectangle; | |
| 20 import dwt.widgets.Composite; | |
| 21 import dwt.widgets.Control; | |
| 22 import dwt.widgets.Layout; | |
| 23 | |
| 24 import tango.util.Convert; | |
| 25 static import tango.text.Util; | |
| 26 import dwt.dwthelper.utils; | |
| 27 | |
| 28 /** | |
| 29 * This Layout stacks all the controls one on top of the other and resizes all controls | |
| 30 * to have the same size and location. | |
| 31 * The control specified in topControl is visible and all other controls are not visible. | |
| 32 * Users must set the topControl value to flip between the visible items and then call | |
| 33 * layout() on the composite which has the StackLayout. | |
| 34 * | |
| 35 * <p> Here is an example which places ten buttons in a stack layout and | |
| 36 * flips between them: | |
| 37 * | |
| 38 * <pre><code> | |
| 39 * public static void main(String[] args) { | |
| 40 * Display display = new Display(); | |
| 41 * Shell shell = new Shell(display); | |
| 42 * shell.setLayout(new GridLayout()); | |
| 43 * | |
| 44 * final Composite parent = new Composite(shell, DWT.NONE); | |
| 45 * parent.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
| 46 * final StackLayout layout = new StackLayout(); | |
| 47 * parent.setLayout(layout); | |
| 48 * final Button[] bArray = new Button[10]; | |
| 49 * for (int i = 0; i < 10; i++) { | |
| 50 * bArray[i] = new Button(parent, DWT.PUSH); | |
| 51 * bArray[i].setText("Button "+i); | |
| 52 * } | |
| 53 * layout.topControl = bArray[0]; | |
| 54 * | |
| 55 * Button b = new Button(shell, DWT.PUSH); | |
| 56 * b.setText("Show Next Button"); | |
| 57 * final int[] index = new int[1]; | |
| 58 * b.addListener(DWT.Selection, new Listener(){ | |
| 59 * public void handleEvent(Event e) { | |
| 60 * index[0] = (index[0] + 1) % 10; | |
| 61 * layout.topControl = bArray[index[0]]; | |
| 62 * parent.layout(); | |
| 63 * } | |
| 64 * }); | |
| 65 * | |
| 66 * shell.open(); | |
| 67 * while (shell !is null && !shell.isDisposed()) { | |
| 68 * if (!display.readAndDispatch()) | |
| 69 * display.sleep(); | |
| 70 * } | |
| 71 * } | |
| 72 * </code></pre> | |
| 73 */ | |
| 74 | |
| 75 public class StackLayout : Layout { | |
| 76 | |
| 77 /** | |
| 78 * marginWidth specifies the number of pixels of horizontal margin | |
| 79 * that will be placed along the left and right edges of the layout. | |
| 80 * | |
| 81 * The default value is 0. | |
| 82 */ | |
| 83 public int marginWidth = 0; | |
| 84 /** | |
| 85 * marginHeight specifies the number of pixels of vertical margin | |
| 86 * that will be placed along the top and bottom edges of the layout. | |
| 87 * | |
| 88 * The default value is 0. | |
| 89 */ | |
| 90 public int marginHeight = 0; | |
| 91 | |
| 92 /** | |
| 93 * topControl the Control that is displayed at the top of the stack. | |
| 94 * All other controls that are children of the parent composite will not be visible. | |
| 95 */ | |
| 96 public Control topControl; | |
| 97 | |
| 98 protected override Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) { | |
| 99 Control children[] = composite.getChildren(); | |
| 100 int maxWidth = 0; | |
| 101 int maxHeight = 0; | |
| 102 for (int i = 0; i < children.length; i++) { | |
| 103 Point size = children[i].computeSize(wHint, hHint, flushCache); | |
| 104 maxWidth = Math.max(size.x, maxWidth); | |
| 105 maxHeight = Math.max(size.y, maxHeight); | |
| 106 } | |
| 107 int width = maxWidth + 2 * marginWidth; | |
| 108 int height = maxHeight + 2 * marginHeight; | |
| 109 if (wHint !is DWT.DEFAULT) width = wHint; | |
| 110 if (hHint !is DWT.DEFAULT) height = hHint; | |
| 111 return new Point(width, height); | |
| 112 } | |
| 113 | |
| 114 protected override bool flushCache(Control control) { | |
| 115 return true; | |
| 116 } | |
| 117 | |
| 118 protected override void layout(Composite composite, bool flushCache) { | |
| 119 Control children[] = composite.getChildren(); | |
| 120 Rectangle rect = composite.getClientArea(); | |
| 121 rect.x += marginWidth; | |
| 122 rect.y += marginHeight; | |
| 123 rect.width -= 2 * marginWidth; | |
| 124 rect.height -= 2 * marginHeight; | |
| 125 for (int i = 0; i < children.length; i++) { | |
| 126 children[i].setBounds(rect); | |
| 127 children[i].setVisible(children[i] is topControl); | |
| 128 | |
| 129 } | |
| 130 } | |
| 131 | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
132 String getName () { |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
133 String string = this.classinfo.name; |
| 155 | 134 int index = tango.text.Util.locatePrior( string ,'.'); |
| 135 if (index is string.length ) return string; | |
| 136 return string[ index + 1 .. $ ]; | |
| 137 } | |
| 138 | |
| 139 /** | |
| 140 * Returns a string containing a concise, human-readable | |
| 141 * description of the receiver. | |
| 142 * | |
| 143 * @return a string representation of the layout | |
| 144 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
145 public override String toString () { |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
146 String string = getName ()~" {"; |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
147 if (marginWidth !is 0) string ~= "marginWidth="~to!(String)(marginWidth)~" "; |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
148 if (marginHeight !is 0) string ~= "marginHeight="~to!(String)(marginHeight)~" "; |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
155
diff
changeset
|
149 if (topControl !is null) string ~= "topControl="~to!(String)(topControl)~" "; |
| 155 | 150 string = tango.text.Util.trim(string); |
| 151 string ~= "}"; | |
| 152 return string; | |
| 153 } | |
| 154 } |