gomp-20050608-branch/libjava/classpath/gnu/java/awt/peer/qt/QtScreenDeviceConfiguration.java

   1 /* QtScreenDeviceConfiguration.java --
   2    Copyright (C)  2005  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.qt;
  39
  40 import java.awt.DisplayMode;
  41 import java.awt.ImageCapabilities;
  42 import java.awt.GraphicsConfiguration;
  43 import java.awt.GraphicsDevice;
  44 import java.awt.GraphicsConfigTemplate;
  45 import java.awt.Rectangle;
  46 import java.awt.image.BufferedImage;
  47 import java.awt.image.ColorModel;
  48 import java.awt.image.VolatileImage;
  49 import java.awt.geom.AffineTransform;
  50
  51 public class QtScreenDeviceConfiguration extends GraphicsConfiguration {
  52
  53   private QtScreenDevice owner;
  54   private Rectangle bounds;
  55   private double dpiX, dpiY;
  56   private int depth;
  57
  58   public QtScreenDeviceConfiguration(QtScreenDevice owner)
  59   {
  60     this.owner = owner;
  61     bounds = owner.getBounds();
  62     dpiX = owner.getDpiX();
  63     dpiY = owner.getDpiY();
  64     depth = owner.depth();
  65   }
  66
  67   public BufferedImage createCompatibleImage(int width, int height)
  68   {
  69     switch( depth )
  70       {
  71       case 24:
  72         return new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
  73       case 16:
  74         return new BufferedImage(width, height,
  75                                  BufferedImage.TYPE_USHORT_565_RGB);
  76       case 8:
  77         return new BufferedImage(width, height, BufferedImage.TYPE_BYTE_INDEXED);
  78       default:
  79       case 32:
  80         return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
  81       }
  82   }
  83
  84   public BufferedImage createCompatibleImage(int width, int height, int transparency)
  85   {
  86     // FIXME: Take the transpareny flag into account?
  87     // For now, ignore it and just use an alpha channel.
  88     if(depth == 32)
  89       return new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
  90     return createCompatibleImage(width, height);
  91   }
  92
  93   public VolatileImage createCompatibleVolatileImage(int width, int height)
  94   {
  95     return new QtVolatileImage( width, height );
  96   }
  97
  98   public VolatileImage createCompatibleVolatileImage(int width, int height,
  99                                                      ImageCapabilities caps)
 100   {
 101     return createCompatibleVolatileImage( width, height );
 102   }
 103
 104   public Rectangle getBounds()
 105   {
 106     return bounds;
 107   }
 108
 109   public ColorModel getColorModel()
 110   {
 111     // FIXME?
 112     return QtToolkit.getDefaultToolkit().getColorModel();
 113   }
 114
 115   public ColorModel getColorModel(int transparency)
 116   {
 117     // FIXME?
 118     return QtToolkit.getDefaultToolkit().getColorModel();
 119   }
 120
 121   public AffineTransform getDefaultTransform()
 122   {
 123     return new AffineTransform();
 124   }
 125
 126   public GraphicsDevice getDevice()
 127   {
 128     return owner;
 129   }
 130
 131   /**
 132    * Returns the transform which transforms from this display's resolution
 133    * to a 72 DPI resolution.
 134    */
 135   public AffineTransform getNormalizingTransform()
 136   {
 137     AffineTransform nTrans = new AffineTransform();
 138     nTrans.scale( 72.0 / dpiX, 72.0 / dpiY );
 139     return nTrans;
 140   }
 141
 142   public VolatileImage createCompatibleVolatileImage(int width, int height,
 143                                                      int transparency)
 144   {
 145     return createCompatibleVolatileImage(width, height);
 146   }
 147 }