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comparison dwt/events/PaintEvent.d @ 0:380af2bdd8e5

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author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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children 649b8e223d5a
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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 *******************************************************************************/
11 module dwt.events.PaintEvent;
12
13 import dwt.dwthelper.utils;
14
15
16 import dwt.graphics.GC;
17 import dwt.widgets.Event;
18
19 /**
20 * Instances of this class are sent as a result of
21 * visible areas of controls requiring re-painting.
22 *
23 * @see PaintListener
24 */
25
26 public final class PaintEvent extends TypedEvent {
27
28 /**
29 * the graphics context to use when painting
30 * that is configured to use the colors, font and
31 * damaged region of the control. It is valid
32 * only during the paint and must not be disposed
33 */
34 public GC gc;
35
36 /**
37 * the x offset of the bounding rectangle of the
38 * region that requires painting
39 */
40 public int x;
41
42 /**
43 * the y offset of the bounding rectangle of the
44 * region that requires painting
45 */
46 public int y;
47
48 /**
49 * the width of the bounding rectangle of the
50 * region that requires painting
51 */
52 public int width;
53
54 /**
55 * the height of the bounding rectangle of the
56 * region that requires painting
57 */
58 public int height;
59
60 /**
61 * the number of following paint events which
62 * are pending which may always be zero on
63 * some platforms
64 */
65 public int count;
66
67 static final long serialVersionUID = 3256446919205992497L;
68
69 /**
70 * Constructs a new instance of this class based on the
71 * information in the given untyped event.
72 *
73 * @param e the untyped event containing the information
74 */
75 public PaintEvent(Event e) {
76 super(e);
77 this.gc = e.gc;
78 this.x = e.x;
79 this.y = e.y;
80 this.width = e.width;
81 this.height = e.height;
82 this.count = e.count;
83 }
84
85 /**
86 * Returns a string containing a concise, human-readable
87 * description of the receiver.
88 *
89 * @return a string representation of the event
90 */
91 public String toString() {
92 String string = super.toString ();
93 return string.substring (0, string.length() - 1) // remove trailing '}'
94 + " gc=" + gc
95 + " x=" + x
96 + " y=" + y
97 + " width=" + width
98 + " height=" + height
99 + " count=" + count
100 + "}";
101 }
102 }
103