http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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: PSImageHandler.java 985537 2010-08-14 17:17:00Z jeremias $ */

package org.apache.fop.render.ps;

import java.io.IOException;

import org.apache.xmlgraphics.image.loader.Image;

import org.apache.fop.render.ImageHandler;
import org.apache.fop.render.RenderingContext;


Specialized image handler interface for PostScript output. Implementations can optionally support creating PostScript forms. The implementation shall check the rendering context to see if forms functionality is enabled in the ImageHandler.isCompatible(RenderingContext, Image) method. 
/**
 * Specialized image handler interface for PostScript output. Implementations can optionally
 * support creating PostScript forms. The implementation shall check the rendering context
 * to see if forms functionality is enabled in the
 * {@link #isCompatible(org.apache.fop.render.RenderingContext,
 * org.apache.xmlgraphics.image.loader.Image)}
 * method.
 */
public interface PSImageHandler extends ImageHandler {

    
Generates a PostScript form for the given Image instance. 
Params:
  • context – the rendering context
  • image – the image to be handled
  • form – the associated form resource
Throws:
/**
     * Generates a PostScript form for the given {@link Image} instance.
     * @param context the rendering context
     * @param image the image to be handled
     * @param form the associated form resource
     * @throws IOException if an I/O error occurs
     */
    void generateForm(RenderingContext context, Image image, PSImageFormResource form)
        throws IOException;

}