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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Alexey A. Petrenko
* @version $Revision$
*/
package java.awt.image;
import java.awt.RenderingHints;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
/**
* The RasterOp interface provides methods for performing transformations from
* source data to destination data for Raster objects. The source and
* destination objects should contain the appropriate number of bands for the
* particular classes which implement this interface.
*
* @since Android 1.0
*/
public interface RasterOp {
/**
* Creates a destination WritableRaster with the specified Raster; this
* destination image data is empty and has the correct size and number of
* bands.
*
* @param src
* the source Raster.
* @return the WritableRaster.
*/
public WritableRaster createCompatibleDestRaster(Raster src);
/**
* Performs a filter operation on the source Raster and stores the resulting
* image data to the destination WritableRaster.
*
* @param src
* the source Raster.
* @param dst
* the destination WritableRaster, where the result is stored.
* @return the filtered WritableRaster.
*/
public WritableRaster filter(Raster src, WritableRaster dst);
/**
* Gets the bounds of the filtered Raster.
*
* @param src
* the source Raster to be filtered.
* @return the rectangle bounds of the filtered Raster.
*/
public Rectangle2D getBounds2D(Raster src);
/**
* Gets the point of the destination image which corresponds to the
* specified point in the source raster.
*
* @param srcPoint
* the point of the source raster.
* @param dstPoint
* the point where the result will be stored.
* @return the destination point.
*/
public Point2D getPoint2D(Point2D srcPoint, Point2D dstPoint);
/**
* Gets the RenderingHints of the RasterOp.
*
* @return the RenderingHints of the RasterOp.
*/
public RenderingHints getRenderingHints();
}
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