| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.render; |
| |
| import java.awt.Rectangle; |
| import java.io.IOException; |
| |
| import org.apache.xmlgraphics.image.loader.Image; |
| import org.apache.xmlgraphics.image.loader.impl.ImageXMLDOM; |
| |
| /** |
| * This interface is a service provider interface for image handlers. |
| */ |
| public interface ImageHandler extends ImageHandlerBase { |
| |
| /** |
| * Indicates whether the image handler is compatible with the indicated target represented |
| * by the rendering context object and with the image to be processed. The image is also |
| * passed as a parameter because a handler might not support every subtype of image that is |
| * presented. For example: in the case of {@link ImageXMLDOM}, the image might carry an SVG |
| * or some other XML format. One handler might only handle SVG but no other XML format. |
| * @param targetContext the target rendering context |
| * @param image the image to be processed (or null if only to check based on the rendering |
| * context) |
| * @return true if this handler is compatible with the target rendering context |
| */ |
| boolean isCompatible(RenderingContext targetContext, Image image); |
| |
| /** |
| * Handles the given {@link Image} instance painting it at the indicated position in the |
| * output format being generated. |
| * @param context the rendering context |
| * @param image the image to be handled |
| * @param pos the position and scaling of the image relative to the origin point of the |
| * current viewport (in millipoints) |
| * @throws IOException if an I/O error occurs |
| */ |
| void handleImage(RenderingContext context, Image image, |
| Rectangle pos) throws IOException; |
| |
| } |