/*

   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.

 */
package org.apache.batik.ext.awt.image.renderable;

import org.apache.batik.ext.awt.image.ComponentTransferFunction;

/**
 * Defines the interface expected from a component
 * transfer operation.
 *
 * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a>
 * @version $Id$
 */
public interface ComponentTransferRable extends FilterColorInterpolation {

    /**
     * Returns the source to be offset.
     */
    Filter getSource();

    /**
     * Sets the source to be offset.
     * @param src image to offset.
     */
    void setSource(Filter src);

    /**
     * Returns the transfer function for the alpha channel
     */
    ComponentTransferFunction getAlphaFunction();

    /**
     * Sets the transfer function for the alpha channel
     */
    void setAlphaFunction(ComponentTransferFunction alphaFunction);

    /**
     * Returns the transfer function for the red channel
     */
    ComponentTransferFunction getRedFunction();

    /**
     * Sets the transfer function for the red channel
     */
    void setRedFunction(ComponentTransferFunction redFunction);

    /**
     * Returns the transfer function for the green channel
     */
    ComponentTransferFunction getGreenFunction();

    /**
     * Sets the transfer function for the green channel
     */
    void setGreenFunction(ComponentTransferFunction greenFunction);

    /**
     * Returns the transfer function for the blue channel
     */
    ComponentTransferFunction getBlueFunction();

    /**
     * Sets the transfer function for the blue channel
     */
    void setBlueFunction(ComponentTransferFunction blueFunction);
}
