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+/* ComponentGraphicsCopy.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.Image;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.font.GlyphVector;
+import java.awt.geom.AffineTransform;
+import java.awt.image.RenderedImage;
+import java.awt.image.ImageObserver;
+
+/**
+ * Implementation of Graphics2D for Components for servers which
+ * do not have xrender.
+ *
+ * A mirrored GtkImage of the component is stored in memory
+ * and copied back. Yay.
+ */
+public class ComponentGraphicsCopy extends CairoSurfaceGraphics
+{
+ private GtkComponentPeer component;
+
+ /**
+ * GtkImage sharing its data buffer with this Cairo surface.
+ */
+ private GtkImage gtkimage;
+
+ private int width, height;
+
+ native void getPixbuf( GtkComponentPeer component, GtkImage image );
+
+ native void copyPixbuf( GtkComponentPeer component, GtkImage image,
+ int x, int y, int w, int h );
+
+ public ComponentGraphicsCopy(int width, int height,
+ GtkComponentPeer component)
+ {
+ super( new CairoSurface( width, height ) );
+ this.component = component;
+ this.width = width;
+ this.height = height;
+ gtkimage = surface.getGtkImage();
+ getPixbuf( component, gtkimage );
+ }
+
+ /**
+ * 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();
+ copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
+ }
+
+ public void fill(Shape s)
+ {
+ super.fill(s);
+ Rectangle r = s.getBounds();
+ copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
+ }
+
+ public void drawRenderedImage(RenderedImage image, AffineTransform xform)
+ {
+ super.drawRenderedImage(image, xform);
+ copyPixbuf(component, gtkimage, 0, 0, width, height);
+ }
+
+ protected boolean drawImage(Image img, AffineTransform xform,
+ Color bgcolor, ImageObserver obs)
+ {
+ boolean rv = super.drawImage(img, xform, bgcolor, obs);
+ copyPixbuf(component, gtkimage, 0, 0, width, height);
+ return rv;
+ }
+
+ public void drawGlyphVector(GlyphVector gv, float x, float y)
+ {
+ super.drawGlyphVector(gv, x, y);
+ Rectangle r = gv.getPixelBounds(getFontRenderContext(), x , y);
+ copyPixbuf(component, gtkimage, r.x, r.y, r.width, r.height);
+ }
+}
+