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

   1: /* GLGraphics.java -- Graphics2D impl on top of GLX
   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.GraphicsConfiguration;
  42: import java.awt.image.ColorModel;
  43: 
  44: import gnu.java.awt.java2d.AbstractGraphics2D;
  45: import gnu.x11.extension.glx.GL;
  46: 
  47: /**
  48:  * An implementation of Graphics2D on top of the GLX extension of X.
  49:  *
  50:  * @author Roman Kennke (kennke@aicas.com)
  51:  */
  52: public class GLGraphics extends AbstractGraphics2D
  53: {
  54: 
  55:   /**
  56:    * The rendering context.
  57:    */
  58:   private GL gl;
  59: 
  60:   /**
  61:    * Creates a new GLGraphics that paints on the specified GL context.
  62:    *
  63:    * @param g the GL context to paint to
  64:    */
  65:   GLGraphics(GL g)
  66:   {
  67:     gl = g;
  68:   }
  69: 
  70:   public void setBackground(Color b)
  71:   {
  72:     super.setBackground(b);
  73:     gl.clear_color(b.getRed() / 255.F, b.getGreen() / 255.F,
  74:                    b.getBlue() / 255.F, b.getAlpha() / 255.F);
  75:   }
  76: 
  77:   public void clearRect(int x, int y, int w, int h)
  78:   {
  79:     // TODO: Maybe use fillRect().
  80:     gl.clear(GL.COLOR_BUFFER_BIT);
  81:   }
  82: 
  83:   public void drawLine(int x1, int y1, int x2, int y2)
  84:   {
  85:     gl.begin(GL.LINES);
  86:     gl.vertex2i(x1, y1);
  87:     gl.vertex2i(x2, y2);
  88:     gl.end();
  89:     // TODO: Maybe do:
  90:     // gl.flush();
  91:   }
  92: 
  93:   public void drawRect(int x, int y, int w, int h)
  94:   {
  95:     gl.polygon_mode(GL.FRONT_AND_BACK, GL.LINE);
  96:     gl.begin(GL.POLYGON);
  97:     gl.recti(x, y, x + w, y + h);
  98:     gl.end();
  99:     // TODO: Maybe do:
 100:     // gl.flush();
 101:   }
 102: 
 103:   public void fillRect(int x, int y, int w, int h)
 104:   {
 105:     gl.polygon_mode(GL.FRONT_AND_BACK, GL.FILL);
 106:     gl.recti(x, y, x + w, y + h);
 107:     // TODO: Maybe do:
 108:     // gl.flush();
 109:   }
 110: 
 111:   protected ColorModel getColorModel()
 112:   {
 113:     // FIXME: Implement this.
 114:     throw new UnsupportedOperationException("Not yet implemented");
 115:   }
 116: 
 117:   public GraphicsConfiguration getDeviceConfiguration()
 118:   {
 119:     // FIXME: Implement this.
 120:     throw new UnsupportedOperationException("Not yet implemented");
 121:   }
 122: 
 123: }