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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.visual;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import javax.xml.transform.Transformer;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.stream.StreamSource;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
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;
/**
* 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 FopFactory fopFactory = FopFactory.newInstance();
private boolean deleteTempFiles;
/** @see org.apache.avalon.framework.configuration.Configurable */
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());
userAgent.setBaseURL(src.getParentFile().toURL().toString());
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.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;
}
}
}
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