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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2014, Arnaud Roques
*
* Project Info: http://plantuml.sourceforge.net
*
* This file is part of PlantUML.
*
* Licensed under The MIT License (Massachusetts Institute of Technology License)
*
* See http://opensource.org/licenses/MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
* Original Author: Arnaud Roques
*/
package net.sourceforge.plantuml.png;
import java.awt.image.RenderedImage;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import net.sourceforge.plantuml.Log;
public class PngIO {
private static final String copyleft = "Generated by http://plantuml.sourceforge.net";
public static void write(RenderedImage image, File file, int dpi) throws IOException {
write(image, file, null, dpi);
}
public static void write(RenderedImage image, OutputStream os, int dpi) throws IOException {
write(image, os, null, dpi);
}
public static void write(RenderedImage image, File file, String metadata, int dpi) throws IOException {
OutputStream os = null;
try {
os = new BufferedOutputStream(new FileOutputStream(file));
write(image, os, metadata, dpi);
} finally {
if (os != null) {
os.close();
}
}
Log.debug("File is " + file);
Log.debug("File size " + file.length());
if (file.length() == 0) {
Log.error("File size is zero: " + file);
ImageIO.write(image, "png", file);
}
}
public static void write(RenderedImage image, OutputStream os, String metadata, int dpi) throws IOException {
write(image, os, metadata, dpi, null);
}
public static void write(RenderedImage image, OutputStream os, String metadata, int dpi, String debugData)
throws IOException {
if (metadata != null && checkPNGMetadata()) {
PngIOMetadata.writeWithMetadata(image, os, metadata, dpi, debugData);
} else {
ImageIO.write(image, "png", os);
}
}
static boolean checkPNGMetadata() {
try {
final Class cl = Class.forName("com.sun.imageio.plugins.png.PNGMetadata");
if (cl == null) {
Log.info("Cannot load com.sun.imageio.plugins.png.PNGMetadata");
return false;
}
Log.info("Ok for com.sun.imageio.plugins.png.PNGMetadata");
return true;
} catch (Exception e) {
Log.info("Error loading com.sun.imageio.plugins.png.PNGMetadata " + e);
return false;
}
}
}
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