Merged gcj-eclipse branch to trunk.

From-SVN: r120621

libjava/classpath/gnu/java/awt/peer/headless/HeadlessGraphicsEnvironment.java

@@ -0,0 +1,118 @@
+/* HeadlessGraphicsEnvironment.java -- A graphics environment for headless mode 
+   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.headless;
+
+import gnu.java.awt.java2d.RasterGraphics;
+
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import java.awt.HeadlessException;
+import java.awt.image.BufferedImage;
+import java.awt.image.Raster;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.util.Locale;
+
+public class HeadlessGraphicsEnvironment
+    extends GraphicsEnvironment
+{
+
+  public Graphics2D createGraphics(BufferedImage image)
+  {
+    Graphics2D g2d;
+    try
+      {
+        // Try to get a CairoGraphics (accellerated) when available. Do this
+        // via reflection to avoid having a hard compile time dependency.
+        Class cairoSurfaceCl =
+          Class.forName("gnu.java.awt.peer.gtk.CairoSurface");
+        Raster raster = image.getRaster();
+        if (cairoSurfaceCl.isInstance(raster))
+          {
+            Method getGraphicsM = cairoSurfaceCl.getMethod("getGraphics",
+                                                           new Class[0]);
+            g2d = (Graphics2D) getGraphicsM.invoke(raster, new Object[0]);
+          }
+        else
+          {
+            Class bigCl =
+              Class.forName("gnu.java.awt.peer.gtk.BufferedImageGraphics");
+            Constructor bigC =
+              bigCl.getConstructor(new Class[]{BufferedImage.class });
+            g2d = (Graphics2D) bigC.newInstance(new Object[]{ image});
+          }
+      }
+    catch (Exception ex)
+      {
+        g2d = new RasterGraphics(image.getRaster(), image.getColorModel());
+      }
+    return g2d;
+  }
+
+  public Font[] getAllFonts()
+  {
+    // FIXME: Implement.
+    return null;
+  }
+
+  public String[] getAvailableFontFamilyNames()
+  {
+    // FIXME: Implement.
+    return null;
+  }
+
+  public String[] getAvailableFontFamilyNames(Locale l)
+  {
+    // FIXME: Implement.
+    return null;
+  }
+
+  public GraphicsDevice getDefaultScreenDevice()
+  {
+    throw new HeadlessException();
+  }
+
+  public GraphicsDevice[] getScreenDevices()
+  {
+    throw new HeadlessException();
+  }
+
+}