Mercurial > projects > dwt-samples

comparison snippets/composite/Snippet46.d @ 119:9a1be6ff19a2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
More snippets, thanks to Tom D.
author Frank Benoit <benoit@tionex.de>
date Sun, 20 Jul 2008 15:26:06 +0200
parents
children
comparison
equal deleted inserted replaced
118:7b1c122b4128 119:9a1be6ff19a2
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 * D Port:
11 * Thomas Demmer <t_demmer AT web DOT de>
12 *******************************************************************************/
13 module composite.Snippet46;
14
15 /*
16 * Composite example snippet: intercept mouse events (drag a button with the mouse)
17 *
18 * For a list of all SWT example snippets see
19 * http://www.eclipse.org/swt/snippets/
20 */
21 import dwt.DWT;
22 import dwt.graphics.Point;
23 import dwt.graphics.Rectangle;
24 import dwt.widgets.Button;
25 import dwt.widgets.Composite;
26 import dwt.widgets.Display;
27 import dwt.widgets.Event;
28 import dwt.widgets.Listener;
29 import dwt.widgets.Shell;
30 import dwt.layout.FillLayout;
31
32 import dwt.dwthelper.utils;
33
34 void main (String [] args) {
35 Display display = new Display ();
36 Shell shell = new Shell (display);
37 Composite composite = new Composite (shell, DWT.NONE);
38 composite.setEnabled (false);
39 composite.setLayout (new FillLayout ());
40 Button button = new Button (composite, DWT.PUSH);
41 button.setText ("Button");
42 composite.pack ();
43 composite.setLocation (10, 10);
44 Point [] offset = new Point [1];
45 Listener listener = new class() Listener{
46 public void handleEvent (Event event) {
47 switch (event.type) {
48 case DWT.MouseDown:
49 Rectangle rect = composite.getBounds ();
50 if (rect.contains (event.x, event.y)) {
51 Point pt1 = composite.toDisplay (0, 0);
52 Point pt2 = shell.toDisplay (event.x, event.y);
53 offset [0] = new Point (pt2.x - pt1.x, pt2.y - pt1.y);
54 }
55 break;
56 case DWT.MouseMove:
57 if (offset [0] !is null) {
58 Point pt = offset [0];
59 composite.setLocation (event.x - pt.x, event.y - pt.y);
60 }
61 break;
62 case DWT.MouseUp:
63 offset [0] = null;
64 break;
65 }
66 }
67 };
68 shell.addListener (DWT.MouseDown, listener);
69 shell.addListener (DWT.MouseUp, listener);
70 shell.addListener (DWT.MouseMove, listener);
71 shell.setSize (300, 300);
72 shell.open ();
73 while (!shell.isDisposed ()) {
74 if (!display.readAndDispatch ()) display.sleep ();
75 }
76 display.dispose ();
77 }
78