1 files changed, 129 insertions, 0 deletions
diff --git a/gnu/java/awt/peer/gtk/VolatileImageGraphics.java b/gnu/java/awt/peer/gtk/VolatileImageGraphics.java
new file mode 100644
index 000000000..81de3d705
--- /dev/null
+++ b/gnu/java/awt/peer/gtk/VolatileImageGraphics.java
@@ -0,0 +1,129 @@
+/* VolatileImageGraphics.java
+   Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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 gnu.java.awt.peer.gtk;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.Image;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.font.GlyphVector;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferInt;
+import java.awt.image.ColorModel;
+import java.awt.image.DirectColorModel;
+import java.awt.image.RenderedImage;
+import java.awt.image.ImageObserver;
+import java.util.WeakHashMap;
+
+public class VolatileImageGraphics extends CairoSurfaceGraphics
+{
+  private GtkVolatileImage owner;
+
+  public VolatileImageGraphics(GtkVolatileImage owner)
+  {
+    super( owner.offScreen );
+    this.owner = owner;
+  }
+  
+  VolatileImageGraphics(VolatileImageGraphics copyFrom)
+  {
+    super( copyFrom.owner.offScreen );
+    owner = copyFrom.owner;
+  }
+
+  /**
+   * Abstract methods.
+   */  
+  public Graphics create()
+  {
+    return new VolatileImageGraphics( this );
+  }
+  
+  public void copyAreaImpl(int x, int y, int width, int height, int dx, int dy)
+  {
+    surface.copyAreaNative(x, y, width, height, dx, dy, surface.width);
+    owner.invalidate();
+  }
+
+  /**
+   * Overloaded methods that do actual drawing need to enter the gdk threads 
+   * and also do certain things before and after.
+   */
+  public void draw(Shape s)
+  {
+    super.draw(s);
+    Rectangle r = s.getBounds();
+    owner.invalidate();
+  }
+
+  public void fill(Shape s)
+  {
+    super.fill(s);
+    Rectangle r = s.getBounds();
+    owner.invalidate();
+  }
+
+  public void drawRenderedImage(RenderedImage image, AffineTransform xform)
+  {
+    super.drawRenderedImage(image, xform);
+    owner.invalidate();
+  }
+
+  protected boolean drawImage(Image img, AffineTransform xform,
+			      Color bgcolor, ImageObserver obs)
+  {
+    boolean rv = super.drawImage(img, xform, bgcolor, obs);
+    owner.invalidate();
+    return rv;
+  }
+
+  public void drawGlyphVector(GlyphVector gv, float x, float y)
+  {
+    super.drawGlyphVector(gv, x, y);
+    owner.invalidate();
+  }
+}
+