/*
* 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 image.writer;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.commons.io.IOUtils;
import org.apache.xmlgraphics.image.writer.ImageWriter;
import org.apache.xmlgraphics.image.writer.ImageWriterParams;
import org.apache.xmlgraphics.image.writer.ImageWriterRegistry;
import org.apache.xmlgraphics.image.writer.MultiImageWriter;
public class ImageWriterExample2 extends ImageWriterExample1 {
private BufferedImage createAnImage(String compression, int pageNum) {
boolean monochrome = compression.startsWith("CCITT"); //CCITT is for 1bit b/w only
BufferedImage bimg;
if (monochrome) {
bimg = new BufferedImage(400, 200, BufferedImage.TYPE_BYTE_BINARY);
} else {
bimg = new BufferedImage(400, 200, BufferedImage.TYPE_INT_RGB);
}
Graphics2D g2d = bimg.createGraphics();
g2d.setBackground(Color.white);
g2d.clearRect(0, 0, 400, 200);
g2d.setColor(Color.black);
//Paint something
paintSome(g2d, pageNum);
return bimg;
}
/**
* Creates a bitmap file. We paint a few things on a bitmap and then save the bitmap using
* an ImageWriter.
* @param outputFile the target file
* @param format the target format (a MIME type, ex. "image/png")
* @throws IOException In case of an I/O error
*/
public void generateBitmapUsingJava2D(File outputFile, String format)
throws IOException {
//String compression = "CCITT T.6";
String compression = "PackBits";
OutputStream out = new java.io.FileOutputStream(outputFile);
out = new java.io.BufferedOutputStream(out);
try {
ImageWriter writer = ImageWriterRegistry.getInstance().getWriterFor(format);
ImageWriterParams params = new ImageWriterParams();
params.setCompressionMethod(compression);
params.setResolution(72);
if (writer.supportsMultiImageWriter()) {
MultiImageWriter multiWriter = writer.createMultiImageWriter(out);
multiWriter.writeImage(createAnImage(compression, 1), params);
multiWriter.writeImage(createAnImage(compression, 2), params);
multiWriter.close();
} else {
throw new UnsupportedOperationException("multi-page images not supported for "
+ format);
}
} finally {
IOUtils.closeQuietly(out);
}
}
/**
* Command-line interface
* @param args command-line arguments
*/
public static void main(String[] args) {
try {
File targetDir;
if (args.length >= 1) {
targetDir = new File(args[0]);
} else {
targetDir = new File(".");
}
if (!targetDir.exists()) {
System.err.println("Target Directory does not exist: " + targetDir);
}
File outputFile = new File(targetDir, "eps-example2.tif");
ImageWriterExample2 app = new ImageWriterExample2();
app.generateBitmapUsingJava2D(outputFile, "image/tiff");
System.out.println("File written: " + outputFile.getCanonicalPath());
} catch (Exception e) {
e.printStackTrace();
}
}
}