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Diffstat (limited to 'libjava/classpath/gnu/java/awt/peer/x/XGraphicsEnvironment.java')
| -rw-r--r-- | libjava/classpath/gnu/java/awt/peer/x/XGraphicsEnvironment.java | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/awt/peer/x/XGraphicsEnvironment.java b/libjava/classpath/gnu/java/awt/peer/x/XGraphicsEnvironment.java new file mode 100644 index 000000000..7b1d82fee --- /dev/null +++ b/libjava/classpath/gnu/java/awt/peer/x/XGraphicsEnvironment.java @@ -0,0 +1,203 @@ +/* XGraphicsEnvironment.java -- Represents the X environment + 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 gnu.java.awt.font.OpenTypeFontPeer; +import gnu.java.awt.java2d.RasterGraphics; +import gnu.x11.Display; + +import java.awt.Font; +import java.awt.Graphics2D; +import java.awt.GraphicsDevice; +import java.awt.GraphicsEnvironment; +import java.awt.image.BufferedImage; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Locale; +import java.util.Properties; + +/** + * Represents the X environment for AWT. + * + * @author Roman Kennke (kennke@aicas.com) + */ +public class XGraphicsEnvironment + extends GraphicsEnvironment +{ + + /** + * The default graphics device. This is normally the local main X + * Display, but can be configured to be any X connection. + */ + private XGraphicsDevice defaultDevice; + + /** + * All configured devices. + */ + private XGraphicsDevice[] devices; + + /** + * Creates a new XGraphicsEnvironment. This loads the configuration if + * there is one present and initializes the XGraphicsDevices in the + * environment. If there is no configuration, then there is one + * default device initialized with the local main X device. + */ + public XGraphicsEnvironment() + { + // Initiliaze the devices. + Properties props = new Properties(); + File config = new File(System.getProperty("user.home"), + ".xawt.properties"); + + try + { + FileInputStream configIn = new FileInputStream(config); + props.load(configIn); + int dev = 1; + ArrayList deviceList = new ArrayList(); + while (true) + { + String propName = "display." + dev; + String propValue = props.getProperty(propName); + if (propValue != null) + { + Display.Name displayName = new Display.Name(propValue); + XGraphicsDevice device = new XGraphicsDevice(displayName); + if (dev == 1) + defaultDevice = device; + deviceList.add(device); + dev++; + } + else + { + if (dev == 1) + { + defaultDevice = initDefaultDevice(); + deviceList.add(defaultDevice); + } + break; + } + } + devices = (XGraphicsDevice[]) deviceList.toArray + (new XGraphicsDevice[deviceList.size()]); + } + catch (FileNotFoundException ex) + { + defaultDevice = initDefaultDevice(); + devices = new XGraphicsDevice[]{ defaultDevice }; + } + catch (IOException ex) + { + defaultDevice = initDefaultDevice(); + devices = new XGraphicsDevice[]{ defaultDevice }; + } + + } + + /** + * Helper method that initializes the default device in the case when there + * is no configuration for the default. + */ + private XGraphicsDevice initDefaultDevice() + { + String display = System.getenv("DISPLAY"); + if (display == null) + display = ":0.0"; + Display.Name displayName = new Display.Name(display); + return new XGraphicsDevice(displayName); + } + + /** + * Returns all configured screen devices. + * + * @return all configured screen devices + */ + public GraphicsDevice[] getScreenDevices() + { + // We return a copy so that nobody can fiddle with our devices. + XGraphicsDevice[] copy = new XGraphicsDevice[devices.length]; + System.arraycopy(devices, 0, copy, 0, devices.length); + return copy; + } + + /** + * Returns the default screen device. + * + * @return the default screen device + */ + public GraphicsDevice getDefaultScreenDevice() + { + return defaultDevice; + } + + /** + * Returns a Graphics instance suitable for drawing on top of the + * BufferedImage. + * + * @param image the buffered image to create a graphics for + * + * @return a Graphics2D instance for drawing on the BufferedImage + */ + public Graphics2D createGraphics(BufferedImage image) + { + return new RasterGraphics(image.getRaster(), image.getColorModel()); + } + + public Font[] getAllFonts() + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public String[] getAvailableFontFamilyNames() + { + return getAvailableFontFamilyNames(Locale.getDefault()); + } + + public String[] getAvailableFontFamilyNames(Locale l) + { + // TODO: This doesn't work when we are using X fonts. + // Fix this. + return OpenTypeFontPeer.getAvailableFontFamilyNames(l); + } + +} |