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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/x/XToolkit.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/x/XToolkit.java | 667 |
1 files changed, 667 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/x/XToolkit.java b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/x/XToolkit.java new file mode 100644 index 000000000..af12574a1 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/x/XToolkit.java @@ -0,0 +1,667 @@ +/* XToolkit.java -- The central AWT Toolkit for the X peers + 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.AWTException; +import java.awt.Button; +import java.awt.Canvas; +import java.awt.Checkbox; +import java.awt.CheckboxMenuItem; +import java.awt.Choice; +import java.awt.Dialog; +import java.awt.Dimension; +import java.awt.EventQueue; +import java.awt.FileDialog; +import java.awt.Font; +import java.awt.FontMetrics; +import java.awt.Frame; +import java.awt.GraphicsConfiguration; +import java.awt.GraphicsDevice; +import java.awt.GraphicsEnvironment; +import java.awt.HeadlessException; +import java.awt.Image; +import java.awt.Label; +import java.awt.List; +import java.awt.Menu; +import java.awt.MenuBar; +import java.awt.MenuItem; +import java.awt.Panel; +import java.awt.PopupMenu; +import java.awt.PrintJob; +import java.awt.ScrollPane; +import java.awt.Scrollbar; +import java.awt.TextArea; +import java.awt.TextField; +import java.awt.Transparency; +import java.awt.Window; +import java.awt.Dialog.ModalExclusionType; +import java.awt.Dialog.ModalityType; +import java.awt.datatransfer.Clipboard; +import java.awt.dnd.DragGestureEvent; +import java.awt.dnd.peer.DragSourceContextPeer; +import java.awt.im.InputMethodHighlight; +import java.awt.image.BufferedImage; +import java.awt.image.ColorModel; +import java.awt.image.DirectColorModel; +import java.awt.image.ImageObserver; +import java.awt.image.ImageProducer; +import java.awt.peer.ButtonPeer; +import java.awt.peer.CanvasPeer; +import java.awt.peer.CheckboxMenuItemPeer; +import java.awt.peer.CheckboxPeer; +import java.awt.peer.ChoicePeer; +import java.awt.peer.DialogPeer; +import java.awt.peer.FileDialogPeer; +import java.awt.peer.FontPeer; +import java.awt.peer.FramePeer; +import java.awt.peer.LabelPeer; +import java.awt.peer.ListPeer; +import java.awt.peer.MenuBarPeer; +import java.awt.peer.MenuItemPeer; +import java.awt.peer.MenuPeer; +import java.awt.peer.PanelPeer; +import java.awt.peer.PopupMenuPeer; +import java.awt.peer.RobotPeer; +import java.awt.peer.ScrollPanePeer; +import java.awt.peer.ScrollbarPeer; +import java.awt.peer.TextAreaPeer; +import java.awt.peer.TextFieldPeer; +import java.awt.peer.WindowPeer; +import java.io.ByteArrayInputStream; +import java.io.File; +import java.io.IOException; +import java.io.InputStream; +import java.net.MalformedURLException; +import java.net.URL; +import java.util.HashMap; +import java.util.Map; +import java.util.Properties; +import java.util.WeakHashMap; + +import javax.imageio.ImageIO; + +import gnu.classpath.SystemProperties; +import gnu.java.awt.ClasspathToolkit; +import gnu.java.awt.EmbeddedWindow; +import gnu.java.awt.font.OpenTypeFontPeer; +import gnu.java.awt.image.ImageConverter; +import gnu.java.awt.java2d.AbstractGraphics2D; +import gnu.java.awt.peer.ClasspathFontPeer; +import gnu.java.awt.peer.EmbeddedWindowPeer; +import gnu.java.awt.peer.swing.SwingButtonPeer; +import gnu.java.awt.peer.swing.SwingCanvasPeer; +import gnu.java.awt.peer.swing.SwingCheckboxPeer; +import gnu.java.awt.peer.swing.SwingLabelPeer; +import gnu.java.awt.peer.swing.SwingPanelPeer; +import gnu.java.awt.peer.swing.SwingTextAreaPeer; +import gnu.java.awt.peer.swing.SwingTextFieldPeer; + +public class XToolkit + extends ClasspathToolkit +{ + + /** + * Set to true to enable debug output. + */ + static boolean DEBUG = false; + + /** + * Maps AWT colors to X colors. + */ + HashMap colorMap = new HashMap(); + + /** + * The system event queue. + */ + private EventQueue eventQueue; + + /** + * The default color model of this toolkit. + */ + private ColorModel colorModel; + + /** + * Maps image URLs to Image instances. + */ + private HashMap imageCache = new HashMap(); + + /** + * The cached fonts. + */ + private WeakHashMap<String,ClasspathFontPeer> fontCache = + new WeakHashMap<String,ClasspathFontPeer>(); + + public XToolkit() + { + SystemProperties.setProperty("gnu.javax.swing.noGraphics2D", "true"); + SystemProperties.setProperty("java.awt.graphicsenv", + "gnu.java.awt.peer.x.XGraphicsEnvironment"); + } + + public GraphicsEnvironment getLocalGraphicsEnvironment() + { + return new XGraphicsEnvironment(); + } + + /** + * Returns the font peer for a font with the specified name and attributes. + * + * @param name the font name + * @param attrs the font attributes + * + * @return the font peer for a font with the specified name and attributes + */ + public ClasspathFontPeer getClasspathFontPeer(String name, Map attrs) + { + ClasspathFontPeer font; + if ("true".equals(System.getProperty("escherpeer.usexfonts"))) + { + String canonical = XFontPeer.encodeFont(name, attrs); + if (!fontCache.containsKey(canonical)) + { + font = new XFontPeer(name, attrs); + fontCache.put(canonical, font); + } + else + { + font = fontCache.get(canonical); + } + } + else + { + String canonical = OpenTypeFontPeer.encodeFont(name, attrs); + if (!fontCache.containsKey(canonical)) + { + font = new OpenTypeFontPeer(name, attrs); + fontCache.put(canonical, font); + } + else + { + font = fontCache.get(canonical); + } + } + return font; + } + + public Font createFont(int format, InputStream stream) + { + return null; + } + + public RobotPeer createRobot(GraphicsDevice screen) throws AWTException + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public EmbeddedWindowPeer createEmbeddedWindow(EmbeddedWindow w) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected ButtonPeer createButton(Button target) + { + checkHeadLess("No ButtonPeer can be created in an headless" + + "graphics environment."); + + return new SwingButtonPeer(target); + } + + protected TextFieldPeer createTextField(TextField target) + { + checkHeadLess("No TextFieldPeer can be created in an headless " + + "graphics environment."); + + return new SwingTextFieldPeer(target); + } + + protected LabelPeer createLabel(Label target) + { + checkHeadLess("No LabelPeer can be created in an headless graphics " + + "environment."); + return new SwingLabelPeer(target); + } + + protected ListPeer createList(List target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected CheckboxPeer createCheckbox(Checkbox target) + { + checkHeadLess("No CheckboxPeer can be created in an headless graphics " + + "environment."); + + return new SwingCheckboxPeer(target); + } + + protected ScrollbarPeer createScrollbar(Scrollbar target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected ScrollPanePeer createScrollPane(ScrollPane target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected TextAreaPeer createTextArea(TextArea target) + { + checkHeadLess("No TextAreaPeer can be created in an headless graphics " + + "environment."); + + return new SwingTextAreaPeer(target); + } + + protected ChoicePeer createChoice(Choice target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected FramePeer createFrame(Frame target) + { + XFramePeer frame = new XFramePeer(target); + return frame; + } + + protected CanvasPeer createCanvas(Canvas target) + { + return new SwingCanvasPeer(target); + } + + protected PanelPeer createPanel(Panel target) + { + return new SwingPanelPeer(target); + } + + protected WindowPeer createWindow(Window target) + { + return new XWindowPeer(target); + } + + protected DialogPeer createDialog(Dialog target) + { + return new XDialogPeer(target); + } + + protected MenuBarPeer createMenuBar(MenuBar target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected MenuPeer createMenu(Menu target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected PopupMenuPeer createPopupMenu(PopupMenu target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected MenuItemPeer createMenuItem(MenuItem target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected FileDialogPeer createFileDialog(FileDialog target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected CheckboxMenuItemPeer createCheckboxMenuItem(CheckboxMenuItem target) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + protected FontPeer getFontPeer(String name, int style) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public Dimension getScreenSize() + { + GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); + GraphicsDevice gd = ge.getDefaultScreenDevice(); + GraphicsConfiguration gc = gd.getDefaultConfiguration(); + XGraphicsConfiguration xgc = (XGraphicsConfiguration) gc; + + return xgc.getSize(); + } + + public int getScreenResolution() + { + GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); + GraphicsDevice gd = ge.getDefaultScreenDevice(); + GraphicsConfiguration gc = gd.getDefaultConfiguration(); + XGraphicsConfiguration xgc = (XGraphicsConfiguration) gc; + + return xgc.getResolution(); + } + + /** + * Returns the color model used by this toolkit. + * + * @return the color model used by this toolkit + */ + public ColorModel getColorModel() + { + // TODO: I assume 24 bit depth here, we can do this better. + if (colorModel == null) + colorModel = new DirectColorModel(24, 0xFF0000, 0xFF00, 0xFF); + return colorModel; + } + + public String[] getFontList() + { + GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); + return ge.getAvailableFontFamilyNames(); + } + + public FontMetrics getFontMetrics(Font name) + { + ClasspathFontPeer peer = (ClasspathFontPeer) name.getPeer(); + return peer.getFontMetrics(name); + } + + public void sync() + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + /** + * Returns an image that has its pixel data loaded from a file with the + * specified name. If that file doesn't exist, an empty or error image + * is returned instead. + * + * @param name the filename of the file that contains the pixel data + * + * @return the image + */ + public Image getImage(String name) + { + Image image; + try + { + File file = new File(name); + image = getImage(file.toURL()); + } + catch (MalformedURLException ex) + { + // TODO: Replace by a more meaningful error image instead. + image = null; + } + return image; + } + + /** + * Returns an image that has its pixel data loaded from the specified URL. + * If the image cannot be loaded for some reason, an empty or error image + * is returned instead. + * + * @param url the URL to the image data + * + * @return the image + */ + public Image getImage(URL url) + { + Image image; + if (imageCache.containsKey(url)) + { + image = (Image) imageCache.get(url); + } + else + { + image = createImage(url); + imageCache.put(url, image); + } + return image; + } + + /** + * Returns an image that has its pixel data loaded from a file with the + * specified name. If that file doesn't exist, an empty or error image + * is returned instead. + * + * @param filename the filename of the file that contains the pixel data + * + * @return the image + */ + public Image createImage(String filename) + { + Image im; + try + { + File file = new File(filename); + URL url = file.toURL(); + im = createImage(url); + } + catch (MalformedURLException ex) + { + im = createErrorImage(); + } + return im; + } + + /** + * Returns an image that has its pixel data loaded from the specified URL. + * If the image cannot be loaded for some reason, an empty or error image + * is returned instead. + * + * @param url the URL to the image data + * + * @return the image + */ + public Image createImage(URL url) + { + Image image; + try + { + image = createImage(url.openStream()); + } + catch (IOException ex) + { + image = createErrorImage(); + } + return image; + } + + /** + * Creates an image that is returned when calls to createImage() yields an + * error. + * + * @return an image that is returned when calls to createImage() yields an + * error + */ + private Image createErrorImage() + { + // TODO: Create better error image. + return new XImage(1, 1); + } + + public boolean prepareImage(Image image, int width, int height, ImageObserver observer) + { + Image scaled = AbstractGraphics2D.prepareImage(image, width, height); + return checkImage(image, width, height, observer) == ImageObserver.ALLBITS; + } + + public int checkImage(Image image, int width, int height, ImageObserver observer) + { + // Images are loaded synchronously, so we don't bother and return true. + return ImageObserver.ALLBITS; + } + + public Image createImage(ImageProducer producer) + { + ImageConverter conv = new ImageConverter(); + producer.startProduction(conv); + Image image = conv.getImage(); + return image; + } + + public Image createImage(byte[] data, int offset, int len) + { + Image image; + try + { + ByteArrayInputStream i = new ByteArrayInputStream(data, offset, len); + image = createImage(i); + } + catch (IOException ex) + { + image = createErrorImage(); + } + return image; + } + + private Image createImage(InputStream i) + throws IOException + { + Image image; + BufferedImage buffered = ImageIO.read(i); + // If the bufferedimage is opaque, then we can copy it over to an + // X Pixmap for faster drawing. + if (buffered != null && buffered.getTransparency() == Transparency.OPAQUE) + { + ImageProducer source = buffered.getSource(); + image = createImage(source); + } + else if (buffered != null) + { + image = buffered; + } + else + { + image = createErrorImage(); + } + return image; + } + + public PrintJob getPrintJob(Frame frame, String title, Properties props) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public void beep() + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public Clipboard getSystemClipboard() + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + /** + * Returns the eventqueue used by the XLib peers. + * + * @return the eventqueue used by the XLib peers + */ + protected EventQueue getSystemEventQueueImpl() + { + if (eventQueue == null) + eventQueue = new EventQueue(); + return eventQueue; + } + + public DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent e) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + public Map mapInputMethodHighlight(InputMethodHighlight highlight) + { + // TODO: Implement this. + throw new UnsupportedOperationException("Not yet implemented."); + } + + /** + * Helper method to quickly fetch the default device (X Display). + * + * @return the default XGraphicsDevice + */ + static XGraphicsDevice getDefaultDevice() + { + XGraphicsEnvironment env = (XGraphicsEnvironment) + XGraphicsEnvironment.getLocalGraphicsEnvironment(); + return (XGraphicsDevice) env.getDefaultScreenDevice(); + } + + @Override + public boolean isModalExclusionTypeSupported(ModalExclusionType modalExclusionType) + { + // TODO Auto-generated method stub + return false; + } + + @Override + public boolean isModalityTypeSupported(ModalityType modalityType) + { + // TODO Auto-generated method stub + return false; + } + + private void checkHeadLess(String message) throws HeadlessException + { + if(GraphicsEnvironment.isHeadless()) + { + if(message == null) + message = "This method cannot be called in headless mode."; + + throw new HeadlessException(message); + } + } +} |