/*
* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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package java.awt.image;
/**
* An interface for objects that wish to be informed when tiles
* of a WritableRenderedImage become modifiable by some writer via
* a call to getWritableTile, and when they become unmodifiable via
* the last call to releaseWritableTile.
*
* @see WritableRenderedImage
*
* @author Thomas DeWeese
* @author Daniel Rice
*/
public interface TileObserver {
/**
* A tile is about to be updated (it is either about to be grabbed
* for writing, or it is being released from writing).
*
* @param source the image that owns the tile.
* @param tileX the X index of the tile that is being updated.
* @param tileY the Y index of the tile that is being updated.
* @param willBeWritable If true, the tile will be grabbed for writing;
* otherwise it is being released.
*/
public void tileUpdate(WritableRenderedImage source,
int tileX, int tileY,
boolean willBeWritable);
}