libjava/classpath/gnu/java/awt/peer/x/XGraphicsConfiguration.java

   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     // TODO: Implement this.
 150     throw new UnsupportedOperationException("Not yet implemented.");
 151   }
 152
 153   public AffineTransform getNormalizingTransform()
 154   {
 155     // TODO: Implement this.
 156     throw new UnsupportedOperationException("Not yet implemented.");
 157   }
 158
 159   public Rectangle getBounds()
 160   {
 161     // TODO: Implement this.
 162     throw new UnsupportedOperationException("Not yet implemented.");
 163   }
 164
 165   /**
 166    * Determines the size of the primary screen.
 167    *
 168    * @return the size of the primary screen
 169    */
 170   Dimension getSize()
 171   {
 172     // TODO: A GraphicsConfiguration should correspond to a Screen instance.
 173     Display d = device.getDisplay();
 174     Screen screen = d.default_screen;
 175     int w = screen.width;
 176     int h = screen.height;
 177     return new Dimension(w, h);
 178   }
 179
 180   /**
 181    * Determines the resolution of the primary screen in pixel-per-inch.
 182    *
 183    * @returnthe resolution of the primary screen in pixel-per-inch
 184    */
 185   int getResolution()
 186   {
 187     Display d = device.getDisplay();
 188     Screen screen = d.default_screen;
 189     int w = screen.width * 254;
 190     int h = screen.height * 254;
 191     int wmm = screen.width_in_mm * 10;
 192     int hmm = screen.height_in_mm * 10;
 193     int xdpi = w / wmm;
 194     int ydpi = h / hmm;
 195     int dpi = (xdpi + ydpi) / 2;
 196     return dpi;
 197   }
 198
 199 }