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Diffstat (limited to 'gnu/java/awt/peer/gtk/CairoSurfaceGraphics.java')
-rw-r--r-- | gnu/java/awt/peer/gtk/CairoSurfaceGraphics.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/gnu/java/awt/peer/gtk/CairoSurfaceGraphics.java b/gnu/java/awt/peer/gtk/CairoSurfaceGraphics.java new file mode 100644 index 000000000..38c549d1d --- /dev/null +++ b/gnu/java/awt/peer/gtk/CairoSurfaceGraphics.java @@ -0,0 +1,100 @@ +/* CairoSurfaceGraphics.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.Graphics; +import java.awt.Color; +import java.awt.Image; +import java.awt.Point; +import java.awt.Graphics2D; +import java.awt.GraphicsConfiguration; +import java.awt.geom.Rectangle2D; +import java.awt.image.*; + +/** + * Implementation of Graphics2D on a Cairo surface. + */ +public class CairoSurfaceGraphics extends CairoGraphics2D +{ + protected CairoSurface surface; + private long cairo_t; + + /** + * Create a graphics context from a cairo surface + */ + public CairoSurfaceGraphics(CairoSurface surface) + { + this.surface = surface; + cairo_t = surface.newCairoContext(); + setup( cairo_t ); + setClip(0, 0, surface.width, surface.height); + } + + /** + * Creates another context from a surface. + * Used by create(). + */ + private CairoSurfaceGraphics(CairoSurfaceGraphics copyFrom) + { + surface = copyFrom.surface; + cairo_t = surface.newCairoContext(); + copy( copyFrom, cairo_t ); + setClip(0, 0, surface.width, surface.height); + } + + public Graphics create() + { + return new CairoSurfaceGraphics(this); + } + + public GraphicsConfiguration getDeviceConfiguration() + { + throw new UnsupportedOperationException(); + } + + protected Rectangle2D getRealBounds() + { + return new Rectangle2D.Double(0.0, 0.0, surface.width, surface.height); + } + + 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); + } +} |