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