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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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render;
-
- import java.awt.Rectangle;
- import java.io.IOException;
-
- import org.apache.xmlgraphics.image.loader.Image;
-
- /**
- * 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 {@code 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;
-
- }
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