org.apache.xmlgraphics.image.writer.ImageWriterUtil Maven / Gradle / Ivy
/*
* 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: ImageWriterUtil.java 1345683 2012-06-03 14:50:33Z gadams $ */
package org.apache.xmlgraphics.image.writer;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.commons.io.IOUtils;
/**
* Convenience methods around ImageWriter for the most important tasks.
*/
public final class ImageWriterUtil {
private ImageWriterUtil() {
}
/**
* Saves a RenderedImage as a PNG file with 96 dpi.
* @param bitmap the bitmap to encode
* @param outputFile the target file
* @throws IOException in case of an I/O problem
*/
public static void saveAsPNG(RenderedImage bitmap, File outputFile)
throws IOException {
saveAsPNG(bitmap, 96, outputFile);
}
/**
* Saves a RenderedImage as a PNG file.
* @param bitmap the bitmap to encode
* @param resolution the bitmap resolution
* @param outputFile the target file
* @throws IOException in case of an I/O problem
*/
public static void saveAsPNG(RenderedImage bitmap, int resolution, File outputFile)
throws IOException {
saveAsFile(bitmap, resolution, outputFile, "image/png");
}
/**
* Saves a RenderedImage as a file. The image format is given through the MIME type
* @param bitmap the bitmap to encode
* @param resolution the bitmap resolution
* @param outputFile the target file
* @param mime the MIME type of the target file
* @throws IOException in case of an I/O problem
*/
public static void saveAsFile(RenderedImage bitmap,
int resolution, File outputFile, String mime)
throws IOException {
OutputStream out = new java.io.FileOutputStream(outputFile);
try {
ImageWriter writer = ImageWriterRegistry.getInstance().getWriterFor(mime);
ImageWriterParams params = new ImageWriterParams();
params.setResolution(resolution);
writer.writeImage(bitmap, out, params);
} finally {
IOUtils.closeQuietly(out);
}
}
}