Mercurial > projects > dwt-linux

annotate dwt/custom/BusyIndicator.d @ 223:d0081b1505da

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dwt.dwthelper restructure
author Frank Benoit <benoit@tionex.de>
date Thu, 10 Apr 2008 08:58:40 +0200
parents d5b1c263ee37
children 380bad9f6852
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
113
1401263f71b0 renamed setCursor(Gtk..) to gtk_setCursor, so the public interface do not need a cast for passing null
Frank Benoit <benoit@tionex.de>
parents: 108
diff changeset
1 /*******************************************************************************
98
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
2 * Copyright (c) 2000, 2006 IBM Corporation and others.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
3 * All rights reserved. This program and the accompanying materials
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
4 * are made available under the terms of the Eclipse Public License v1.0
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
5 * which accompanies this distribution, and is available at
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
6 * http://www.eclipse.org/legal/epl-v10.html
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
7 *
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
8 * Contributors:
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
9 * IBM Corporation - initial API and implementation
108
0f12f6bb9739 author notice
Frank Benoit <benoit@tionex.de>
parents: 98
diff changeset
10 * Port to the D programming language:
0f12f6bb9739 author notice
Frank Benoit <benoit@tionex.de>
parents: 98
diff changeset
11 * Frank Benoit <benoit@tionex.de>
98
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
12 *******************************************************************************/
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
13 module dwt.custom.BusyIndicator;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
14
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
15
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
16
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
17 import dwt.DWT;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
18 import dwt.graphics.Cursor;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
19 import dwt.widgets.Display;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
20 import dwt.widgets.Shell;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
21 import dwt.dwthelper.Runnable;
217
d5b1c263ee37 utils import
Frank Benoit <benoit@tionex.de>
parents: 113
diff changeset
22 import dwt.dwthelper.utils;
98
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
23
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
24 /**
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
25 * Support for showing a Busy Cursor during a long running process.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
26 */
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
27 public class BusyIndicator {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
28
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
29 static int nextBusyId = 1;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
30 static const char[] BUSYID_NAME = "DWT BusyIndicator"; //$NON-NLS-1$
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
31 static const char[] BUSY_CURSOR = "DWT BusyIndicator Cursor"; //$NON-NLS-1$
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
32
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
33 /**
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
34 * Runs the given <code>Runnable</code> while providing
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
35 * busy feedback using this busy indicator.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
36 *
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
37 * @param display the display on which the busy feedback should be
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
38 * displayed. If the display is null, the Display for the current
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
39 * thread will be used. If there is no Display for the current thread,
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
40 * the runnable code will be executed and no busy feedback will be displayed.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
41 * @param runnable the runnable for which busy feedback is to be shown.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
42 * Must not be null.
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
43 *
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
44 * @exception IllegalArgumentException <ul>
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
45 * <li>ERROR_NULL_ARGUMENT - if the runnable is null</li>
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
46 * </ul>
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
47 */
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
48
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
49 public static void showWhile(Display display, Runnable runnable) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
50 if (runnable is null)
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
51 DWT.error(DWT.ERROR_NULL_ARGUMENT);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
52 if (display is null) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
53 display = Display.getCurrent();
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
54 if (display is null) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
55 runnable.run();
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
56 return;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
57 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
58 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
59
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
60 Integer busyId = new Integer(nextBusyId);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
61 nextBusyId++;
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
62 Cursor cursor = display.getSystemCursor(DWT.CURSOR_WAIT);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
63 Shell[] shells = display.getShells();
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
64 for (int i = 0; i < shells.length; i++) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
65 Integer id = cast(Integer)shells[i].getData(BUSYID_NAME);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
66 if (id is null) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
67 shells[i].setCursor(cursor);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
68 shells[i].setData(BUSYID_NAME, busyId);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
69 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
70 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
71
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
72 try {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
73 runnable.run();
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
74 } finally {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
75 shells = display.getShells();
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
76 for (int i = 0; i < shells.length; i++) {
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
77 Integer id = cast(Integer)shells[i].getData(BUSYID_NAME);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
78 if ( id !is null && id == busyId) {
113
1401263f71b0 renamed setCursor(Gtk..) to gtk_setCursor, so the public interface do not need a cast for passing null
Frank Benoit <benoit@tionex.de>
parents: 108
diff changeset
79 shells[i].setCursor(null);
98
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
80 shells[i].setData(BUSYID_NAME, null);
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
81 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
82 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
83 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
84 }
bf44a537c2e9 BidiSegmentListener, BusyIndicator
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
85 }