BMP_Palette.java :  » Development » jrc-editor » org » zaval » awt » image » Java Open Source

/**
 *     Caption: Zaval Java Resource Editor
 *     $Revision: 0.37 $
 *     $Date: 2002/03/28 9:24:42 $
 *
 *     @author:     Victor Krapivin
 *     @version:    1.3
 *
 * Zaval JRC Editor is a visual editor which allows you to manipulate 
 * localization strings for all Java based software with appropriate 
 * support embedded.
 * 
 * For more info on this product read Zaval Java Resource Editor User's Guide
 * (It comes within this package).
 * The latest product version is always available from the product's homepage:
 * http://www.zaval.org/products/jrc-editor/
 * and from the SourceForge:
 * http://sourceforge.net/projects/zaval0002/
 *
 * Contacts:
 *   Support : support@zaval.org
 *   Change Requests : change-request@zaval.org
 *   Feedback : feedback@zaval.org
 *   Other : info@zaval.org
 * 
 * Copyright (C) 2001-2002  Zaval Creative Engineering Group (http://www.zaval.org)
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * (version 2) as published by the Free Software Foundation.
 * 
 * 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 org.zaval.awt.image;

import java.io.*;
import java.awt.image.*;

// BMP Header, Win3.1 and on ( version 3 BMP )
// BMP Palette

class BMP_Palette
{
    private ColorModel      cm;
    public int readBytes = 0;

    public ColorModel getColorModel()
    {
        return cm;
    }

    public  BMP_Palette(int numcolors, BMP_InputStream in, int pixsize)
    throws IOException
    {
        if (pixsize==24 || pixsize == 16){
            cm = new DirectColorModel(24, 0x000000ff,0x0000ff00,0x00ff0000 );
            return;
        }

        byte red[] = new byte[numcolors];
        byte green[] = new byte[numcolors];
        byte blue[] = new byte[numcolors];

        for ( int i = 0 ; i < numcolors ; i++ ){
                blue [i] = (byte) in.read();
                green[i] = (byte) in.read();
                red  [i] = (byte) in.read();
                in.read();
        }

        cm = new IndexColorModel(pixsize,numcolors,red,green,blue);
        readBytes = 3 +  numcolors*4;
    }
}