AWT/Swing merge from GNU Classpath.

From-SVN: r56147

1 files changed, 121 insertions, 0 deletions

diff --git a/libjava/java/awt/BufferCapabilities.java b/libjava/java/awt/BufferCapabilities.java
new file mode 100644
index 0000000..389594b
--- /dev/null
+++ b/libjava/java/awt/BufferCapabilities.java
@@ -0,0 +1,121 @@
+/* BufferCapabilities.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.awt;
+
+/**
+ * Needs documentation...
+ *
+ * @author Eric Blake <ebb9@email.byu.edu>
+ * @see BufferStrategy#getCapabilities()
+ * @see GraphicsConfiguration#getCapabilities()
+ * @since 1.4
+ * @status updated to 1.4, lacks documentation
+ */
+public class BufferCapabilities implements Cloneable
+{
+  public static final class FlipContents extends AttributeValue
+  {
+    private static final String[] NAMES
+      = { "undefined", "background", "prior", "copied" };
+    public static final FlipContents UNDEFINED = new FlipContents(0);
+    public static final FlipContents BACKGROUND = new FlipContents(1);
+    public static final FlipContents PRIOR = new FlipContents(2);
+    public static final FlipContents COPIED = new FlipContents(3);
+    private FlipContents(int value)
+    {
+      super(value, NAMES);
+    }
+  } // class FlipContents
+
+  private final ImageCapabilities front;
+  private final ImageCapabilities back;
+  private final FlipContents flip;
+
+  public BufferCapabilities(ImageCapabilities front, ImageCapabilities back,
+                            FlipContents flip)
+  {
+    this.front = front;
+    this.back = back;
+    this.flip = flip;
+    if (front ==  null || back == null)
+      throw new IllegalArgumentException();
+  }
+
+  public ImageCapabilities getFrontBufferCapabilities()
+  {
+    return front;
+  }
+
+  public ImageCapabilities getBackBufferCapabilities()
+  {
+    return back;
+  }
+
+  public boolean isPageFlipping()
+  {
+    return flip != null;
+  }
+
+  public FlipContents getFlipContents()
+  {
+    return flip;
+  }
+
+  public boolean isFullScreenRequired()
+  {
+    return true;
+  }
+
+  public boolean isMultiBufferAvailable()
+  {
+    return false;
+  }
+
+  public Object clone()
+  {
+    try
+      {
+        return super.clone();
+      }
+    catch (CloneNotSupportedException e)
+      {
+        throw (Error) new InternalError().initCause(e); // Impossible
+      }
+  }
+} // class BufferCapabilities