| /* |
| |
| 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 java.util.List; |
| |
| import org.apache.batik.ext.awt.image.ARGBChannel; |
| |
| /** |
| * Implements a DisplacementMap operation, which takes pixel values from |
| * another image to spatially displace the input image |
| * |
| * @author <a href="mailto:sheng.pei@eng.sun.com">Sheng Pei</a> |
| * @version $Id$ |
| */ |
| public interface DisplacementMapRable extends FilterColorInterpolation { |
| |
| int CHANNEL_R = 1; |
| int CHANNEL_G = 2; |
| int CHANNEL_B = 3; |
| int CHANNEL_A = 4; |
| |
| /** |
| * The sources to be used in the displacement operation |
| * The source at index 0 is displacement by the channels |
| * in source at index 1 defined by the xChannelSelector |
| * and the yChannelSelector. The displacement amount is |
| * defined by the scale attribute. |
| * |
| * @param srcs The list of images used in the operation. |
| */ |
| void setSources(List srcs); |
| |
| /** |
| * The displacement scale factor |
| * @param scale can be any number. |
| */ |
| void setScale(double scale); |
| |
| /** |
| * Returns the displacement scale factor |
| */ |
| double getScale(); |
| |
| /** |
| * Select which component values will be used |
| * for displacement along the X axis |
| * @param xChannelSelector value is among R, |
| * G, B and A. |
| */ |
| void setXChannelSelector(ARGBChannel xChannelSelector); |
| |
| /** |
| * Returns the xChannelSelector |
| */ |
| ARGBChannel getXChannelSelector(); |
| |
| /** |
| * Select which component values will be used |
| * for displacement along the Y axis |
| * @param yChannelSelector value is among R, |
| * G, B and A. |
| */ |
| void setYChannelSelector(ARGBChannel yChannelSelector); |
| |
| /** |
| * Returns the yChannelSelector |
| */ |
| ARGBChannel getYChannelSelector(); |
| |
| } |