1 /*
   2  * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.awt;
  27 
  28 import java.awt.GraphicsConfiguration;
  29 import java.awt.Rectangle;
  30 import java.awt.Transparency;
  31 import java.awt.geom.AffineTransform;
  32 import java.awt.image.ColorModel;
  33 
  34 import sun.java2d.SurfaceData;
  35 import sun.java2d.opengl.CGLLayer;
  36 import sun.lwawt.LWGraphicsConfig;
  37 import sun.lwawt.macosx.CPlatformView;
  38 
  39 public abstract class CGraphicsConfig extends GraphicsConfiguration
  40         implements LWGraphicsConfig {
  41 
  42     private final CGraphicsDevice device;
  43     private ColorModel colorModel;
  44 
  45     protected CGraphicsConfig(CGraphicsDevice device) {
  46         this.device = device;
  47     }
  48 
  49     @Override
  50     public final Rectangle getBounds() {
  51         return device.getBounds();
  52     }
  53 
  54     @Override
  55     public ColorModel getColorModel() {
  56         if (colorModel == null) {
  57             colorModel = getColorModel(Transparency.OPAQUE);
  58         }
  59         return colorModel;
  60     }
  61 
  62     @Override
  63     public AffineTransform getDefaultTransform() {
  64         double scaleFactor = device.getScaleFactor();
  65         return AffineTransform.getScaleInstance(scaleFactor, scaleFactor);
  66     }
  67 
  68     @Override
  69     public CGraphicsDevice getDevice() {
  70         return device;
  71     }
  72 
  73     @Override
  74     public AffineTransform getNormalizingTransform() {
  75         double xscale = device.getXResolution() / 72.0;
  76         double yscale = device.getYResolution() / 72.0;
  77         return new AffineTransform(xscale, 0.0, 0.0, yscale, 0.0, 0.0);
  78     }
  79 
  80     /**
  81      * Creates a new SurfaceData that will be associated with the given
  82      * LWWindowPeer.
  83      */
  84     public abstract SurfaceData createSurfaceData(CPlatformView pView);
  85 
  86     /**
  87      * Creates a new SurfaceData that will be associated with the given
  88      * CGLLayer.
  89      */
  90     public abstract SurfaceData createSurfaceData(CGLLayer layer);
  91 
  92     @Override
  93     public final boolean isTranslucencyCapable() {
  94         //we know for sure we have capable config :)
  95         return true;
  96     }
  97 }