| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 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 java.awt.image; |
| 27 | |
| 28 | /** |
| 29 | * An interface for objects that wish to be informed when tiles |
| 30 | * of a WritableRenderedImage become modifiable by some writer via |
| 31 | * a call to getWritableTile, and when they become unmodifiable via |
| 32 | * the last call to releaseWritableTile. |
| 33 | * |
| 34 | * @see WritableRenderedImage |
| 35 | * |
| 36 | * @author Thomas DeWeese |
| 37 | * @author Daniel Rice |
| 38 | */ |
| 39 | public interface TileObserver { |
| 40 | |
| 41 | /** |
| 42 | * A tile is about to be updated (it is either about to be grabbed |
| 43 | * for writing, or it is being released from writing). |
| 44 | * |
| 45 | * @param source the image that owns the tile. |
| 46 | * @param tileX the X index of the tile that is being updated. |
| 47 | * @param tileY the Y index of the tile that is being updated. |
| 48 | * @param willBeWritable If true, the tile will be grabbed for writing; |
| 49 | * otherwise it is being released. |
| 50 | */ |
| 51 | public void tileUpdate(WritableRenderedImage source, |
| 52 | int tileX, int tileY, |
| 53 | boolean willBeWritable); |
| 54 | |
| 55 | } |