| /* |
| * 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.rtf; |
| |
| import org.apache.batik.transcoder.TranscoderException; |
| import org.apache.batik.transcoder.TranscoderInput; |
| import org.apache.batik.transcoder.TranscoderOutput; |
| import org.apache.batik.transcoder.image.JPEGTranscoder; |
| import org.apache.commons.io.output.ByteArrayOutputStream; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.fop.image.XMLImage; |
| |
| /** |
| * Helper class for converting SVG to bitmap images. |
| */ |
| public final class SVGConverter { |
| |
| /** logger instance */ |
| private static Log log = LogFactory.getLog(SVGConverter.class); |
| |
| /** |
| * Constructor is private, because it's just a utility class. |
| */ |
| private SVGConverter() { |
| } |
| |
| /** |
| * Converts a SVG image to a JPEG bitmap. |
| * @param image the SVG image |
| * @return a byte array containing the JPEG image |
| */ |
| public static byte[] convertToJPEG(XMLImage image) { |
| JPEGTranscoder transcoder = new JPEGTranscoder(); |
| /* TODO Disabled to avoid side-effect due to the mixing of source and target resolutions |
| * This should be reenabled when it has been determined how exactly to handle this |
| transcoder.addTranscodingHint(ImageTranscoder.KEY_PIXEL_UNIT_TO_MILLIMETER, |
| new Float(25.4f / 300)); //300dpi should be enough for now. |
| */ |
| transcoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(0.9f)); |
| TranscoderInput input = new TranscoderInput(image.getDocument()); |
| ByteArrayOutputStream baout = new ByteArrayOutputStream(16384); |
| TranscoderOutput output = new TranscoderOutput(baout); |
| try { |
| transcoder.transcode(input, output); |
| return baout.toByteArray(); |
| } catch (TranscoderException e) { |
| log.error(e); |
| return null; |
| } |
| } |
| |
| } |