/**
* ImageParser
* Copyright 2010 by Michael Peter Christen, mc@yacy.net, Frankfurt am Main, Germany
* First released 29.6.2010 at http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.document;
import java.awt.Container;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import net.yacy.document.parser.images.bmpParser;
import net.yacy.document.parser.images.icoParser;
public class ImageParser {
public static final Image parse(final String filename, final byte[] source) {
final MediaTracker mediaTracker = new MediaTracker(new Container());
Image image;
if (((filename.endsWith(".ico")) || (filename.endsWith(".bmp"))) && (bmpParser.isBMP(source))) {
// parse image with BMP parser
image = bmpParser.parse(source).getImage();
if (image == null) return null;
} else if ((filename.endsWith(".ico")) && (icoParser.isICO(source))) {
// parse image with ICO parser
icoParser icoparser;
icoparser = new icoParser(source);
image = icoparser.getImage(0);
if (image == null) return null;
} else {
// awt can handle jpg, png and gif formats, try it
image = Toolkit.getDefaultToolkit().createImage(source);
/*
try {
ImageIO.setUseCache(false); // do not write a cache to disc; keep in RAM
image = ImageIO.read(new ByteArrayInputStream(source));
} catch (IOException e) {
Image i = Toolkit.getDefaultToolkit().createImage(source);
mediaTracker.addImage(i, 0);
try {mediaTracker.waitForID(0);} catch (final InterruptedException ee) {}
int width = i.getWidth(null); if (width < 0) width = 96; // bad hack
int height = i.getHeight(null); if (height < 0) height = 96; // bad hack
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
image.createGraphics().drawImage(i, 0, 0, width, height, null);
}
*/
}
final int handle = image.hashCode();
mediaTracker.addImage(image, handle);
try {mediaTracker.waitForID(handle);} catch (final InterruptedException e) {}
return image;
}
}