Source for gnu.java.awt.peer.x.ImageConverter

   1: /* ImageConverter.java -- Convert arbitrary Image impl to XImage
   2:    Copyright (C) 2006 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package gnu.java.awt.peer.x;
  39: 
  40: import java.awt.Color;
  41: import java.awt.Graphics;
  42: import java.awt.image.ColorModel;
  43: import java.awt.image.ImageConsumer;
  44: import java.util.Hashtable;
  45: 
  46: /**
  47:  * Convert a non-XImage to an XImage.
  48:  * 
  49:  * @author Roman Kennke (kennke@aicas.com)
  50:  */
  51: public class ImageConverter implements ImageConsumer
  52: {
  53: 
  54:   private XImage image;
  55:   private Graphics imageGraphics;
  56: 
  57:   public void setDimensions(int width, int height)
  58:   {
  59:     image = new XImage(width, height);
  60:   }
  61: 
  62:   public void setProperties(Hashtable props)
  63:   {
  64:     // Ignore for now.
  65:   }
  66: 
  67:   public void setColorModel(ColorModel model)
  68:   {
  69:     // Ignore for now.
  70:   }
  71: 
  72:   public void setHints(int flags)
  73:   {
  74:     // Ignore for now.
  75:   }
  76: 
  77:   public void setPixels(int x, int y, int w, int h, ColorModel model,
  78:                         byte[] pixels, int offset, int scansize)
  79:   {
  80:     // FIXME: Implement this.
  81:     throw new UnsupportedOperationException("Not yet implemented");
  82:   }
  83: 
  84:   public void setPixels(int x, int y, int w, int h, ColorModel model,
  85:                         int[] pixels, int offset, int scansize)
  86:   {
  87:     System.err.println("transferType: " + model.getTransferType());
  88:     System.err.println("colorModel: " + model);
  89:     if (imageGraphics == null)
  90:       imageGraphics = image.getGraphics();
  91:     int xend = x + w;
  92:     int yend = y + h;
  93:     for (int yy = y; yy < yend; yy++)
  94:       {
  95:         for (int xx = x; xx < xend; xx++)
  96:           {
  97:             int pixel = pixels[yy * scansize + xx + offset];
  98:             imageGraphics.setColor(new Color(model.getRGB(pixel)));
  99:             imageGraphics.fillRect(xx, yy, 1, 1);
 100:           }
 101:       }
 102:   }
 103: 
 104:   public void imageComplete(int status)
 105:   {
 106:     // Nothing to do here.
 107:   }
 108: 
 109:   XImage getXImage()
 110:   {
 111:     return image;
 112:   }
 113: }