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+/* GLGraphics.java -- Graphics2D impl on top of GLX
+ 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.x;
+
+import java.awt.Color;
+import java.awt.GraphicsConfiguration;
+import java.awt.image.ColorModel;
+
+import gnu.java.awt.java2d.AbstractGraphics2D;
+import gnu.x11.extension.glx.GL;
+
+/**
+ * An implementation of Graphics2D on top of the GLX extension of X.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+public class GLGraphics extends AbstractGraphics2D
+{
+
+ /**
+ * The rendering context.
+ */
+ private GL gl;
+
+ /**
+ * Creates a new GLGraphics that paints on the specified GL context.
+ *
+ * @param g the GL context to paint to
+ */
+ GLGraphics(GL g)
+ {
+ gl = g;
+ }
+
+ public void setBackground(Color b)
+ {
+ super.setBackground(b);
+ gl.clear_color(b.getRed() / 255.F, b.getGreen() / 255.F,
+ b.getBlue() / 255.F, b.getAlpha() / 255.F);
+ }
+
+ public void clearRect(int x, int y, int w, int h)
+ {
+ // TODO: Maybe use fillRect().
+ gl.clear(GL.COLOR_BUFFER_BIT);
+ }
+
+ public void drawLine(int x1, int y1, int x2, int y2)
+ {
+ gl.begin(GL.LINES);
+ gl.vertex2i(x1, y1);
+ gl.vertex2i(x2, y2);
+ gl.end();
+ // TODO: Maybe do:
+ // gl.flush();
+ }
+
+ public void drawRect(int x, int y, int w, int h)
+ {
+ gl.polygon_mode(GL.FRONT_AND_BACK, GL.LINE);
+ gl.begin(GL.POLYGON);
+ gl.recti(x, y, x + w, y + h);
+ gl.end();
+ // TODO: Maybe do:
+ // gl.flush();
+ }
+
+ public void fillRect(int x, int y, int w, int h)
+ {
+ gl.polygon_mode(GL.FRONT_AND_BACK, GL.FILL);
+ gl.recti(x, y, x + w, y + h);
+ // TODO: Maybe do:
+ // gl.flush();
+ }
+
+ protected ColorModel getColorModel()
+ {
+ // FIXME: Implement this.
+ throw new UnsupportedOperationException("Not yet implemented");
+ }
+
+ public GraphicsConfiguration getDeviceConfiguration()
+ {
+ // FIXME: Implement this.
+ throw new UnsupportedOperationException("Not yet implemented");
+ }
+
+}