mirror of git://gcc.gnu.org/git/gcc.git
119 lines
3.8 KiB
Java
119 lines
3.8 KiB
Java
/* HeadlessGraphicsEnvironment.java -- A graphics environment for headless mode
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.awt.peer.headless;
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import gnu.java.awt.java2d.RasterGraphics;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.GraphicsDevice;
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import java.awt.GraphicsEnvironment;
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import java.awt.HeadlessException;
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import java.awt.image.BufferedImage;
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import java.awt.image.Raster;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import java.util.Locale;
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public class HeadlessGraphicsEnvironment
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extends GraphicsEnvironment
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{
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public Graphics2D createGraphics(BufferedImage image)
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{
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Graphics2D g2d;
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try
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{
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// Try to get a CairoGraphics (accellerated) when available. Do this
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// via reflection to avoid having a hard compile time dependency.
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Class cairoSurfaceCl =
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Class.forName("gnu.java.awt.peer.gtk.CairoSurface");
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Raster raster = image.getRaster();
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if (cairoSurfaceCl.isInstance(raster))
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{
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Method getGraphicsM = cairoSurfaceCl.getMethod("getGraphics",
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new Class[0]);
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g2d = (Graphics2D) getGraphicsM.invoke(raster, new Object[0]);
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}
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else
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{
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Class bigCl =
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Class.forName("gnu.java.awt.peer.gtk.BufferedImageGraphics");
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Constructor bigC =
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bigCl.getConstructor(new Class[]{BufferedImage.class });
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g2d = (Graphics2D) bigC.newInstance(new Object[]{ image});
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}
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}
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catch (Exception ex)
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{
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g2d = new RasterGraphics(image.getRaster(), image.getColorModel());
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}
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return g2d;
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}
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public Font[] getAllFonts()
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{
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// FIXME: Implement.
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return null;
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}
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public String[] getAvailableFontFamilyNames()
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{
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// FIXME: Implement.
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return null;
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}
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public String[] getAvailableFontFamilyNames(Locale l)
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{
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// FIXME: Implement.
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return null;
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}
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public GraphicsDevice getDefaultScreenDevice()
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{
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throw new HeadlessException();
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}
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public GraphicsDevice[] getScreenDevices()
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{
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throw new HeadlessException();
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}
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}
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