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1 /* |
1 /* |
2 * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1995, 2012, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. Oracle designates this |
7 * published by the Free Software Foundation. Oracle designates this |
141 |
141 |
142 public synchronized void addWatcher(ImageObserver iw) { |
142 public synchronized void addWatcher(ImageObserver iw) { |
143 if (iw != null && !isWatcher(iw)) { |
143 if (iw != null && !isWatcher(iw)) { |
144 watcherList = new WeakLink(iw, watcherList); |
144 watcherList = new WeakLink(iw, watcherList); |
145 } |
145 } |
|
146 watcherList = watcherList.removeWatcher(null); |
146 } |
147 } |
147 |
148 |
148 public synchronized boolean isWatcher(ImageObserver iw) { |
149 public synchronized boolean isWatcher(ImageObserver iw) { |
149 return watcherList.isWatcher(iw); |
150 return watcherList.isWatcher(iw); |
150 } |
151 } |