Mercurial > projects > dwt2
annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet217.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
author | kntroh |
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date | Wed, 16 Mar 2011 21:53:53 +0900 |
parents | 4e5843b771cc |
children | 536e43f63c81 |
rev | line source |
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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 | |
112 | 51 const String OBJ_MARKER = "\uFFFC"; |
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; | |
59 static int MARGIN = 5; | |
60 | |
61 void addControl(Control control, int offset) { | |
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()); | |
29
4e5843b771cc
First snippets buildable on windows
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
78 styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER); |
28 | 79 styledText.setFont(font); |
29
4e5843b771cc
First snippets buildable on windows
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
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); | |
94 offsets[i] = offset; | |
95 addControl(controls[i], offsets[i]); | |
96 lastOffset = offset + OBJ_MARKER.length; | |
97 } | |
98 | |
99 void onVerify(Event e) { | |
100 int start = e.start; | |
101 int replaceCharCount = e.end - e.start; | |
102 int newCharCount = e.text.length; | |
103 for (int i = 0; i < offsets.length; i++) { | |
104 int offset = offsets[i]; | |
105 if (start <= offset && offset < start + replaceCharCount) { | |
106 // this widget is being deleted from the text | |
107 if (controls[i] !is null && !controls[i].isDisposed()) { | |
108 controls[i].dispose(); | |
109 controls[i] = null; | |
110 } | |
111 offset = -1; | |
112 } | |
113 if (offset != -1 && offset >= start) offset += newCharCount - replaceCharCount; | |
114 offsets[i] = offset; | |
115 } | |
116 } | |
117 // use a verify listener to keep the offsets up to date | |
118 styledText.addListener(SWT.Verify, dgListener(&onVerify)); | |
119 | |
120 // reposition widgets on paint event | |
121 styledText.addPaintObjectListener(new class(offsets) PaintObjectListener { | |
122 int[] offsets; | |
123 this(int[] offsets_) { | |
124 this.offsets = offsets_; | |
125 } | |
126 public void paintObject(PaintObjectEvent event) { | |
127 StyleRange style = event.style; | |
128 int start = style.start; | |
129 for (int i = 0; i < offsets.length; i++) { | |
130 int offset = offsets[i]; | |
131 if (start == offset) { | |
132 Point pt = controls[i].getSize(); | |
133 int x = event.x + MARGIN; | |
134 int y = event.y + event.ascent - 2*pt.y/3; | |
135 controls[i].setLocation(x, y); | |
136 break; | |
137 } | |
138 } | |
139 } | |
140 }); | |
141 | |
142 shell.setSize(400, 400); | |
143 shell.open(); | |
144 while (!shell.isDisposed()) { | |
145 if (!display.readAndDispatch()) | |
146 display.sleep(); | |
147 } | |
148 font.dispose(); | |
149 display.dispose(); | |
150 } |