Mercurial > projects > dwt-addons

comparison dwtx/draw2d/UpdateListener.d @ 98:95307ad235d9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
parents
children
comparison
equal deleted inserted replaced
96:b492ba44e44d 98:95307ad235d9
1 /*******************************************************************************
2 * Copyright (c) 2000, 2005 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 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module dwtx.draw2d.UpdateListener;
14
15 import dwt.dwthelper.utils;
16 import dwtx.dwtxhelper.Collection;
17
18 import dwtx.draw2d.geometry.Rectangle;
19
20 /**
21 * An interface used to notify listeners that the listened to object is updating.
22 */
23 public interface UpdateListener {
24
25 /**
26 * Notifies the listener that the listened to object is painting. The damage rectangle
27 * may be null or empty. This indicates the dirty regions were clipped or not visible.
28 * But for objects such as the {@link dwtx.draw2d.parts.Thumbnail}, notification
29 * still needs to occur. The map of dirty regions is passed to allow the listener to
30 * determine if it needs to update, for instance when a particular figure is painting.
31 *
32 * @param damage The area being painted
33 * @param dirtyRegions a Map of figures to their dirty regions
34 */
35 void notifyPainting(Rectangle damage, Map dirtyRegions);
36
37 /**
38 * Notifies the listener that the listened to object is validating.
39 */
40 void notifyValidating();
41
42 }