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