1 /*
2 * Copyright 1997-1998 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.swing;
27
28 import java.awt;
29 import java.awt.image;
30
31 /** ImageObserver for DebugGraphics, used for images only.
32 *
33 * @author Dave Karlton
34 */
35 class DebugGraphicsObserver implements ImageObserver {
36 int lastInfo;
37
38 synchronized boolean allBitsPresent() {
39 return (lastInfo & ImageObserver.ALLBITS) != 0;
40 }
41
42 synchronized boolean imageHasProblem() {
43 return ((lastInfo & ImageObserver.ERROR) != 0 ||
44 (lastInfo & ImageObserver.ABORT) != 0);
45 }
46
47 public synchronized boolean imageUpdate(Image img, int infoflags,
48 int x, int y,
49 int width, int height) {
50 lastInfo = infoflags;
51 return true;
52 }
53 }
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