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/*

* 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);

}