56 lines
2.2 KiB
Java
56 lines
2.2 KiB
Java
/*
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* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.awt.image;
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/**
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* An interface for objects that wish to be informed when tiles
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* of a WritableRenderedImage become modifiable by some writer via
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* a call to getWritableTile, and when they become unmodifiable via
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* the last call to releaseWritableTile.
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*
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* @see WritableRenderedImage
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*
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* @author Thomas DeWeese
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* @author Daniel Rice
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*/
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public interface TileObserver {
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/**
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* A tile is about to be updated (it is either about to be grabbed
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* for writing, or it is being released from writing).
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*
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* @param source the image that owns the tile.
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* @param tileX the X index of the tile that is being updated.
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* @param tileY the Y index of the tile that is being updated.
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* @param willBeWritable If true, the tile will be grabbed for writing;
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* otherwise it is being released.
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*/
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public void tileUpdate(WritableRenderedImage source,
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int tileX, int tileY,
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boolean willBeWritable);
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}
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