/*

   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;

/**
 * Adjusts the input images coordinate system by dx, dy.
 *
 * @author <a href="mailto:Thomas.DeWeeese@Kodak.com">Thomas DeWeese</a>
 * @version $Id$
 */
public interface OffsetRable extends Filter {
      /**
       * Returns the source to be offset.
       */
      Filter getSource();

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

      /**
       * Set the x offset.
       * @param dx the amount to offset in the x direction
       */
      void setXoffset(double dx);

      /**
       * Get the x offset.
       * @return the amount to offset in the x direction
       */
      double getXoffset();

      /**
       * Set the y offset.
       * @param dy the amount to offset in the y direction
       */
      void setYoffset(double dy);

      /**
       * Get the y offset.
       * @return the amount to offset in the y direction
       */
      double getYoffset();
}