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// icoParser.java
// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 15.07.2007 on http://yacy.net
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy.document.parser.images;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.imageio.ImageIO;
import com.twelvemonkeys.imageio.plugins.bmp.ICOImageReader;
import net.yacy.cora.util.ConcurrentLog;
/**
*
* @deprecated use ImageIO {@link ICOImageReader} from github.com/haraldk/TwelveMonkeys
* library (imageio-bmp-3.2.jar), which as better BMP format
* variants support, and support PNG encoded icons.
*/
@Deprecated
public class icoParser {
// this is a implementation of http://msdn2.microsoft.com/en-us/library/ms997538(d=printer).aspx
public static final int ICONDIRENTRY_size = 16;
private final int idCount;
private bmpParser.INFOHEADER[] infoheaders;
private bmpParser.IMAGEMAP[] imagemaps;
public static final boolean isICO(final byte[] source) {
// check the file magic
return (source != null) && (source.length >= 4) && (source[0] == 0) && (source[1] == 0) && (source[2] == 1) && (source[3] == 0);
}
public icoParser(final byte[] source) {
// read info-header
idCount = bmpParser.WORD(source, 4);
// read the icon directory entry and the image entries
final ICONDIRENTRY[] icondirentries = new ICONDIRENTRY[idCount];
infoheaders = new bmpParser.INFOHEADER[idCount];
final bmpParser.COLORTABLE[] colortables = new bmpParser.COLORTABLE[idCount];
imagemaps = new bmpParser.IMAGEMAP[idCount];
for (int i = 0; i < idCount; i++) {
icondirentries[i] = new ICONDIRENTRY(source, 6 + i * ICONDIRENTRY_size);
infoheaders[i] = new bmpParser.INFOHEADER(source, icondirentries[i].dwImageOffset);
colortables[i] = new bmpParser.COLORTABLE(source, icondirentries[i].dwImageOffset + bmpParser.INFOHEADER_size, infoheaders[i]);
imagemaps[i] = new bmpParser.IMAGEMAP(source, icondirentries[i].dwImageOffset + bmpParser.INFOHEADER_size + colortables[i].colorbytes, icondirentries[i].bWidth, icondirentries[i].bHeight, infoheaders[i].biCompression, infoheaders[i].biBitCount, colortables[i]);
}
}
public static class ICONDIRENTRY {
public int bWidth, bHeight, bColorCount, bReserved, wPlanes, wBitCount, dwBytesInRes, dwImageOffset;
public ICONDIRENTRY(final byte[] s, final int offset) {
// read info-header
bWidth = bmpParser.BYTE(s, offset + 0);
bHeight = bmpParser.BYTE(s, offset + 1);
bColorCount = bmpParser.BYTE(s, offset + 2);
bReserved = bmpParser.BYTE(s, offset + 3);
wPlanes = bmpParser.WORD(s, offset + 4);
wBitCount = bmpParser.WORD(s, offset + 6);
dwBytesInRes = bmpParser.DWORD(s, offset + 8);
dwImageOffset = bmpParser.DWORD(s, offset + 12);
}
}
public int images() {
// return number of images in icon
return idCount;
}
public BufferedImage getImage(final int index) {
if (imagemaps == null || index >= imagemaps.length) return null;
return imagemaps[index].getImage();
}
public static void main(final String[] args) {
try {
// read a ICO and write it as png
System.setProperty("java.awt.headless", "true");
final File in = new File(args[0]);
final File out = new File(args[1]);
final byte[] file = new byte[(int) in.length()];
FileInputStream fis = null;
try {
fis = new FileInputStream(in);
fis.read(file);
} catch (final FileNotFoundException e) {
ConcurrentLog.logException(e);
} catch (final IOException e) {
ConcurrentLog.logException(e);
} finally {
if(fis != null) {
try {
fis.close();
} catch (IOException e) {
ConcurrentLog.logException(e);
}
}
}
final icoParser parser = new icoParser(file);
try {
ImageIO.write(parser.getImage(0), "PNG", out);
} catch (final IOException e) {
ConcurrentLog.logException(e);
}
} finally {
ConcurrentLog.shutdown();
}
}
}
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