Mercurial > projects > dwt2
annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet217.d @ 124:6f2199435268
fixed snippet 217 and OpenGL snippets
| author | Denis Shelomovskij <verylonglogin.reg@gmail.com> |
|---|---|
| date | Thu, 11 Aug 2011 19:28:27 +0300 |
| parents | 536e43f63c81 |
| children |
| rev | line source |
|---|---|
| 28 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2004 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 * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ ) | |
| 12 *******************************************************************************/ | |
| 13 | |
| 14 module org.eclipse.swt.snippets.Snippet217; | |
| 15 /** | |
| 16 * StyledText snippet: embed controls | |
| 17 * | |
| 18 * For a list of all SWT example snippets see | |
| 19 * http://www.eclipse.org/swt/snippets/ | |
| 20 * | |
| 21 * @since 3.2 | |
| 22 */ | |
| 23 | |
| 24 import org.eclipse.swt.SWT; | |
| 25 import org.eclipse.swt.custom.StyledText; | |
| 26 import org.eclipse.swt.custom.StyleRange; | |
| 27 import org.eclipse.swt.custom.PaintObjectEvent; | |
| 28 import org.eclipse.swt.custom.PaintObjectListener; | |
| 29 import org.eclipse.swt.layout.GridData; | |
| 30 import org.eclipse.swt.layout.GridLayout; | |
| 31 import org.eclipse.swt.widgets.Display; | |
| 32 import org.eclipse.swt.widgets.Shell; | |
| 33 import org.eclipse.swt.widgets.Control; | |
| 34 import org.eclipse.swt.widgets.Button; | |
| 35 import org.eclipse.swt.widgets.Combo; | |
| 36 import org.eclipse.swt.widgets.Event; | |
| 37 import org.eclipse.swt.widgets.Listener; | |
| 38 import org.eclipse.swt.graphics.FontData; | |
| 39 import org.eclipse.swt.graphics.Font; | |
| 40 import org.eclipse.swt.graphics.Rectangle; | |
| 41 import org.eclipse.swt.graphics.Point; | |
| 42 import org.eclipse.swt.graphics.GC; | |
| 43 import org.eclipse.swt.graphics.Image; | |
| 44 import org.eclipse.swt.graphics.GlyphMetrics; | |
| 45 | |
| 46 import java.lang.all; | |
| 47 version(JIVE){ | |
| 48 import jive.stacktrace; | |
| 49 } | |
| 50 | |
|
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51 const char[] OBJ_MARKER = "\uFFFC"; //should be char[] because of dmd v1.069 @@@BUG@@@ Issue 6467 |
| 28 | 52 void main() { |
| 53 static StyledText styledText; | |
| 54 static String text = | |
| 55 "This snippet shows how to embed widgets in a StyledText.\n" | |
| 56 "Here is one: " ~ OBJ_MARKER ~ ", and here is another: " ~ OBJ_MARKER ~ "."; | |
| 57 static int[] offsets; | |
| 58 static Control[] controls; | |
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59 static const int MARGIN = 5; |
| 28 | 60 |
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61 static void addControl(Control control, int offset) { |
| 28 | 62 StyleRange style = new StyleRange (); |
| 63 style.start = offset; | |
| 64 style.length = OBJ_MARKER.length; | |
| 65 control.pack(); | |
| 66 Rectangle rect = control.getBounds(); | |
| 67 int ascent = 2*rect.height/3; | |
| 68 int descent = rect.height - ascent; | |
| 69 style.metrics = new GlyphMetrics(ascent + MARGIN, descent + MARGIN, rect.width + 2*MARGIN); | |
| 70 styledText.setStyleRange(style); | |
| 71 } | |
| 72 | |
| 73 | |
| 74 Display display = new Display(); | |
| 75 Font font = new Font(display, "Tahoma", 32f, SWT.NORMAL); | |
| 76 Shell shell = new Shell(display); | |
| 77 shell.setLayout(new GridLayout()); | |
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78 styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER); |
| 28 | 79 styledText.setFont(font); |
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80 styledText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); |
| 28 | 81 styledText.setText(text); |
| 82 controls = new Control[2]; | |
| 83 Button button = new Button(styledText, SWT.PUSH); | |
| 84 button.setText("Button 1"); | |
| 85 controls[0] = button; | |
| 86 Combo combo = new Combo(styledText, SWT.NONE); | |
| 87 combo.add("item 1"); | |
| 88 combo.add("another item"); | |
| 89 controls[1] = combo; | |
| 90 offsets = new int[controls.length]; | |
| 91 int lastOffset = 0; | |
| 92 for (int i = 0; i < controls.length; i++) { | |
| 93 int offset = text.indexOf( OBJ_MARKER, lastOffset); | |
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94 assert(offset != -1, "Can't find OBJ_MARKER"); |
| 28 | 95 offsets[i] = offset; |
| 96 addControl(controls[i], offsets[i]); | |
| 97 lastOffset = offset + OBJ_MARKER.length; | |
| 98 } | |
| 99 | |
| 100 void onVerify(Event e) { | |
| 101 int start = e.start; | |
| 102 int replaceCharCount = e.end - e.start; | |
| 103 int newCharCount = e.text.length; | |
| 104 for (int i = 0; i < offsets.length; i++) { | |
| 105 int offset = offsets[i]; | |
| 106 if (start <= offset && offset < start + replaceCharCount) { | |
| 107 // this widget is being deleted from the text | |
| 108 if (controls[i] !is null && !controls[i].isDisposed()) { | |
| 109 controls[i].dispose(); | |
| 110 controls[i] = null; | |
| 111 } | |
| 112 offset = -1; | |
| 113 } | |
| 114 if (offset != -1 && offset >= start) offset += newCharCount - replaceCharCount; | |
| 115 offsets[i] = offset; | |
| 116 } | |
| 117 } | |
| 118 // use a verify listener to keep the offsets up to date | |
| 119 styledText.addListener(SWT.Verify, dgListener(&onVerify)); | |
| 120 | |
| 121 // reposition widgets on paint event | |
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536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
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parents:
112
diff
changeset
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122 styledText.addPaintObjectListener(new class PaintObjectListener { |
| 28 | 123 public void paintObject(PaintObjectEvent event) { |
| 124 StyleRange style = event.style; | |
| 125 int start = style.start; | |
| 126 for (int i = 0; i < offsets.length; i++) { | |
| 127 int offset = offsets[i]; | |
| 128 if (start == offset) { | |
| 129 Point pt = controls[i].getSize(); | |
| 130 int x = event.x + MARGIN; | |
| 131 int y = event.y + event.ascent - 2*pt.y/3; | |
| 132 controls[i].setLocation(x, y); | |
| 133 break; | |
| 134 } | |
| 135 } | |
| 136 } | |
| 137 }); | |
| 138 | |
| 139 shell.setSize(400, 400); | |
| 140 shell.open(); | |
| 141 while (!shell.isDisposed()) { | |
| 142 if (!display.readAndDispatch()) | |
| 143 display.sleep(); | |
| 144 } | |
| 145 font.dispose(); | |
| 146 display.dispose(); | |
| 147 } |