org.eclipse.swt.snippets.Snippet118 source code

1 #!/usr/bin/env dub
2 /+
3 dub.sdl:
4     name "snippet118"
5     dependency "dwt" path="../../../../../../"
6     libs \
7       "atk-1.0" \
8       "cairo" \
9       "dl" \
10       "fontconfig" \
11       "gdk-x11-2.0" \
12       "gdk_pixbuf-2.0" \
13       "glib-2.0" \
14       "gmodule-2.0" \
15       "gnomeui-2" \
16       "gnomevfs-2" \
17       "gobject-2.0" \
18       "gthread-2.0" \
19       "gtk-x11-2.0" \
20       "pango-1.0" \
21       "pangocairo-1.0" \
22       "X11" \
23       "Xcomposite" \
24       "Xcursor" \
25       "Xdamage" \
26       "Xext" \
27       "Xfixes" \
28       "Xi" \
29       "Xinerama" \
30       "Xrandr" \
31       "Xrender" \
32       "Xtst" \
33       platform="linux"
34 +/
35 
36 /*******************************************************************************
37  * Copyright (c) 2000, 2004 IBM Corporation and others.
38  * All rights reserved. This program and the accompanying materials
39  * are made available under the terms of the Eclipse Public License v1.0
40  * which accompanies this distribution, and is available at
41  * http://www.eclipse.org/legal/epl-v10.html
42  *
43  * Contributors:
44  *     IBM Corporation - initial API and implementation
45  * D Port:
46  *     Thomas Demmer <t_demmer AT web DOT de>
47  *******************************************************************************/
48 module org.eclipse.swt.snippets.Snippet118;
49 
50 /*
51  * Cursor example snippet: create a color cursor from an image file
52  *
53  * For a list of all SWT example snippets see
54  * http://www.eclipse.org/swt/snippets/
55  *
56  * @since 3.0
57  */
58 import org.eclipse.swt.SWT;
59 import org.eclipse.swt.graphics.Cursor;
60 import org.eclipse.swt.graphics.ImageData;
61 import org.eclipse.swt.graphics.Point;
62 import org.eclipse.swt.widgets.Button;
63 import org.eclipse.swt.widgets.Display;
64 import org.eclipse.swt.widgets.FileDialog;
65 import org.eclipse.swt.widgets.Event;
66 import org.eclipse.swt.widgets.Listener;
67 import org.eclipse.swt.widgets.Shell;
68 
69 import java.lang.all;
70 
71 void main () {
72     Display display = new Display();
73     Shell shell = new Shell(display);
74     shell.setSize(150, 150);
75     Cursor[1] cursor;
76     Button button = new Button(shell, SWT.PUSH);
77     button.setText("Change cursor");
78     Point size = button.computeSize(SWT.DEFAULT, SWT.DEFAULT);
79     button.setSize(size);
80     button.addListener(SWT.Selection, new class Listener{
81         public void handleEvent(Event e) {
82             FileDialog dialog = new FileDialog(shell);
83             dialog.setFilterExtensions(["*.ico", "*.gif", "*.*"]);
84             String name = dialog.open();
85             if (name is null) return;
86             ImageData image = new ImageData(name);
87             Cursor oldCursor = cursor[0];
88             cursor[0] = new Cursor(display, image, 0, 0);
89             shell.setCursor(cursor[0]);
90             if (oldCursor !is null) oldCursor.dispose();
91         }
92     });
93     shell.open();
94     while (!shell.isDisposed()) {
95         if (!display.readAndDispatch())
96             display.sleep();
97     }
98     if (cursor[0] !is null) cursor[0].dispose();
99     display.dispose();
100 }
101