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

   1: /* XGraphicsConfiguration.java -- GraphicsConfiguration for X
   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 gnu.x11.Display;
  41: import gnu.x11.Screen;
  42: 
  43: import java.awt.Dimension;
  44: import java.awt.GraphicsConfiguration;
  45: import java.awt.GraphicsDevice;
  46: import java.awt.Point;
  47: import java.awt.Rectangle;
  48: import java.awt.Transparency;
  49: import java.awt.color.ColorSpace;
  50: import java.awt.geom.AffineTransform;
  51: import java.awt.image.BufferedImage;
  52: import java.awt.image.ColorModel;
  53: import java.awt.image.ComponentColorModel;
  54: import java.awt.image.ComponentSampleModel;
  55: import java.awt.image.DataBuffer;
  56: import java.awt.image.Raster;
  57: import java.awt.image.SampleModel;
  58: import java.awt.image.VolatileImage;
  59: import java.awt.image.WritableRaster;
  60: 
  61: public class XGraphicsConfiguration
  62:     extends GraphicsConfiguration
  63: {
  64: 
  65:   XGraphicsDevice device;
  66: 
  67:   XGraphicsConfiguration(XGraphicsDevice dev)
  68:   {
  69:     device = dev;
  70:   }
  71: 
  72:   public GraphicsDevice getDevice()
  73:   {
  74:     return device;
  75:   }
  76: 
  77:   public BufferedImage createCompatibleImage(int w, int h)
  78:   {
  79:     return createCompatibleImage(w, h, Transparency.OPAQUE);
  80:   }
  81: 
  82:   public BufferedImage createCompatibleImage(int w, int h, int transparency)
  83:   {
  84:     BufferedImage bi;
  85:     switch (transparency)
  86:       {
  87:         case Transparency.OPAQUE:
  88:           DataBuffer buffer = new ZPixmapDataBuffer(w, h);
  89:           SampleModel sm = new ComponentSampleModel(DataBuffer.TYPE_BYTE, w, h,
  90:                                                     4, w * 4,
  91:                                                     new int[]{0, 1, 2, 3 });
  92:           ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB);
  93:           ColorModel cm = new ComponentColorModel(cs, true, false,
  94:                                                   Transparency.OPAQUE,
  95:                                                   DataBuffer.TYPE_BYTE);
  96:           WritableRaster raster = Raster.createWritableRaster(sm, buffer,
  97:                                                               new Point(0, 0));
  98:           bi = new BufferedImage(cm, raster, false, null);
  99:           break;
 100:         case Transparency.BITMASK:
 101:         case Transparency.TRANSLUCENT:
 102:           bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 103:           break;
 104:         default:
 105:           throw new IllegalArgumentException("Illegal transparency: "
 106:                                              + transparency);
 107:       }
 108:     return bi;
 109:   }
 110: 
 111:   public VolatileImage createCompatibleVolatileImage(int w, int h)
 112:   {
 113:     return createCompatibleVolatileImage(w, h, Transparency.OPAQUE);
 114:   }
 115: 
 116:   public VolatileImage createCompatibleVolatileImage(int width, int height,
 117:                                                      int transparency)
 118:   {
 119:     VolatileImage im;
 120:     switch (transparency)
 121:       {
 122:       case Transparency.OPAQUE:
 123:         im = new PixmapVolatileImage(width, height);
 124:         break;
 125:       case Transparency.BITMASK:
 126:       case Transparency.TRANSLUCENT:
 127:         throw new UnsupportedOperationException("Not yet implemented");
 128:       default:
 129:         throw new IllegalArgumentException("Unknown transparency type: "
 130:                                            + transparency);
 131:       }
 132:     return im;
 133:   }
 134: 
 135:   public ColorModel getColorModel()
 136:   {
 137:     // TODO: Implement this.
 138:     throw new UnsupportedOperationException("Not yet implemented.");
 139:   }
 140: 
 141:   public ColorModel getColorModel(int transparency)
 142:   {
 143:     // TODO: Implement this.
 144:     throw new UnsupportedOperationException("Not yet implemented.");
 145:   }
 146: 
 147:   public AffineTransform getDefaultTransform()
 148:   {
 149:     return new AffineTransform();
 150:   }
 151: 
 152:   public AffineTransform getNormalizingTransform()
 153:   {
 154:     // TODO: Implement this.
 155:     throw new UnsupportedOperationException("Not yet implemented.");
 156:   }
 157: 
 158:   public Rectangle getBounds()
 159:   {
 160:     Display d = device.getDisplay();
 161:     Screen screen = d.default_screen;
 162: 
 163:     return new Rectangle(0, 0, screen.width, screen.height);
 164:   }
 165: 
 166:   /**
 167:    * Determines the size of the primary screen.
 168:    *
 169:    * @return the size of the primary screen
 170:    */
 171:   Dimension getSize()
 172:   {
 173:     // TODO: A GraphicsConfiguration should correspond to a Screen instance.
 174:     Display d = device.getDisplay();
 175:     Screen screen = d.default_screen;
 176:     int w = screen.width;
 177:     int h = screen.height;
 178:     return new Dimension(w, h);
 179:   }
 180: 
 181:   /**
 182:    * Determines the resolution of the primary screen in pixel-per-inch.
 183:    *
 184:    * @returnthe resolution of the primary screen in pixel-per-inch
 185:    */
 186:   int getResolution()
 187:   {
 188:     Display d = device.getDisplay();
 189:     Screen screen = d.default_screen;
 190:     int w = screen.width * 254;
 191:     int h = screen.height * 254;
 192:     int wmm = screen.width_in_mm * 10;
 193:     int hmm = screen.height_in_mm * 10;
 194:     int xdpi = w / wmm;
 195:     int ydpi = h / hmm;
 196:     int dpi = (xdpi + ydpi) / 2;
 197:     return dpi;
 198:   }
 199: 
 200: }