| /* |
| * 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.visual; |
| |
| import java.awt.image.BufferedImage; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.OutputStream; |
| import java.net.URI; |
| |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.sax.SAXResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.apache.commons.io.IOUtils; |
| |
| import org.apache.fop.apps.FOUserAgent; |
| import org.apache.fop.apps.Fop; |
| import org.apache.fop.apps.FopFactory; |
| import org.apache.fop.apps.MimeConstants; |
| import org.apache.fop.configuration.Configurable; |
| import org.apache.fop.configuration.Configuration; |
| import org.apache.fop.configuration.ConfigurationException; |
| import org.apache.fop.util.DefaultErrorListener; |
| |
| /** |
| * BitmapProducer implementation that uses the Java2DRenderer to create bitmaps. |
| * <p> |
| * Here's what the configuration element looks like for the class: |
| * <p> |
| * <pre> |
| * <producer classname="org.apache.fop.visual.BitmapProducerJava2D"> |
| * <delete-temp-files>false</delete-temp-files> |
| * </producer> |
| * </pre> |
| * <p> |
| * The "delete-temp-files" element is optional and defaults to true. |
| */ |
| public class BitmapProducerJava2D extends AbstractBitmapProducer implements Configurable { |
| |
| // configure fopFactory as desired |
| private final FopFactory fopFactory; |
| |
| private boolean deleteTempFiles; |
| |
| public BitmapProducerJava2D(URI baseUri) { |
| super(baseUri); |
| fopFactory = FopFactory.newInstance(baseUri); |
| } |
| |
| public void configure(Configuration cfg) throws ConfigurationException { |
| this.deleteTempFiles = cfg.getChild("delete-temp-files").getValueAsBoolean(true); |
| } |
| |
| /** @see org.apache.fop.visual.BitmapProducer */ |
| public BufferedImage produce(File src, int index, ProducerContext context) { |
| try { |
| FOUserAgent userAgent = fopFactory.newFOUserAgent(); |
| userAgent.setTargetResolution(context.getTargetResolution()); |
| |
| File outputFile = new File(context.getTargetDir(), |
| src.getName() + "." + index + ".java2d.png"); |
| OutputStream out = new FileOutputStream(outputFile); |
| out = new BufferedOutputStream(out); |
| try { |
| Fop fop = fopFactory.newFop(MimeConstants.MIME_PNG, userAgent, out); |
| SAXResult res = new SAXResult(fop.getDefaultHandler()); |
| |
| Transformer transformer = getTransformer(context); |
| transformer.setErrorListener(new DefaultErrorListener(log)); |
| transformer.transform(new StreamSource(src), res); |
| } finally { |
| IOUtils.closeQuietly(out); |
| } |
| |
| BufferedImage img = BitmapComparator.getImage(outputFile); |
| if (deleteTempFiles) { |
| if (!outputFile.delete()) { |
| log.warn("Cannot delete " + outputFile); |
| outputFile.deleteOnExit(); |
| } |
| } |
| return img; |
| } catch (Exception e) { |
| e.printStackTrace(); |
| log.error(e); |
| return null; |
| } |
| } |
| |
| } |