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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/gtk/GtkToolkit.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/gtk/GtkToolkit.java | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/gtk/GtkToolkit.java b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/gtk/GtkToolkit.java new file mode 100644 index 000000000..3b114468f --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/gtk/GtkToolkit.java @@ -0,0 +1,766 @@ +/* GtkToolkit.java -- Implements an AWT Toolkit using GTK for peers + Copyright (C) 1998, 1999, 2002, 2003, 2004, 2005, 2006, 2007 + 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.gtk; + +import gnu.classpath.Configuration; + +import gnu.java.awt.AWTUtilities; +import gnu.java.awt.EmbeddedWindow; +import gnu.java.awt.dnd.GtkMouseDragGestureRecognizer; +import gnu.java.awt.dnd.peer.gtk.GtkDragSourceContextPeer; +import gnu.java.awt.peer.ClasspathFontPeer; +import gnu.java.awt.peer.EmbeddedWindowPeer; + +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.Component; +import java.awt.Cursor; +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.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.Point; +import java.awt.PopupMenu; +import java.awt.PrintJob; +import java.awt.Rectangle; +import java.awt.ScrollPane; +import java.awt.Scrollbar; +import java.awt.TextArea; +import java.awt.TextField; +import java.awt.Window; +import java.awt.datatransfer.Clipboard; +import java.awt.dnd.DragGestureEvent; +import java.awt.dnd.DragGestureListener; +import java.awt.dnd.DragGestureRecognizer; +import java.awt.dnd.DragSource; +import java.awt.dnd.InvalidDnDOperationException; +import java.awt.dnd.peer.DragSourceContextPeer; +import java.awt.font.TextAttribute; +import java.awt.im.InputMethodHighlight; +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.MouseInfoPeer; +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.InputStream; +import java.net.URL; +import java.util.HashMap; +import java.util.LinkedHashMap; +import java.util.Map; +import java.util.Properties; + +import javax.imageio.spi.IIORegistry; + +/* This class uses a deprecated method java.awt.peer.ComponentPeer.getPeer(). + This merits comment. We are basically calling Sun's bluff on this one. + We think Sun has deprecated it simply to discourage its use as it is + bad programming style. However, we need to get at a component's peer in + this class. If getPeer() ever goes away, we can implement a hash table + that will keep up with every window's peer, but for now this is faster. */ + +public class GtkToolkit extends gnu.java.awt.ClasspathToolkit +{ + static final Object GTK_LOCK; + + private static EventQueue q; + + static native void gtkInit(int portableNativeSync, Object lock); + + static native void gtkMain(); + + static native void gtkQuit(); + + /** + * Initializes field IDs that are used by native code. + */ + private static native void initIDs(); + + /** + * True when the field IDs are already initialized, false otherwise. + */ + private static boolean initializedGlobalIDs = false; + + /** + * Initializes some global fieldIDs for use in the native code. This is + * called by a couple of classes in the GTK peers to ensure that + * some necessary stuff is loaded. + */ + static synchronized void initializeGlobalIDs() + { + if (! initializedGlobalIDs) + { + initIDs(); + initializedGlobalIDs = true; + } + } + + static + { + if (true) // GCJ LOCAL + { + System.loadLibrary("gtkpeer"); + } + + /** + * Gotta do that first. + */ + initializeGlobalIDs(); + + int portableNativeSync; + String portNatSyncProp = + System.getProperty("gnu.classpath.awt.gtk.portable.native.sync"); + + if (portNatSyncProp == null) + portableNativeSync = -1; // unset + else if (Boolean.valueOf(portNatSyncProp).booleanValue()) + portableNativeSync = 1; // true + else + portableNativeSync = 0; // false + + GTK_LOCK = new String("GTK LOCK"); + gtkInit(portableNativeSync, GTK_LOCK); + } + + public GtkToolkit () + { + } + + public native void beep(); + + private native void getScreenSizeDimensions(int[] xy); + + public int checkImage (Image image, int width, int height, + ImageObserver observer) + { + int status = ImageObserver.ALLBITS + | ImageObserver.WIDTH + | ImageObserver.HEIGHT; + + if (image instanceof GtkImage) + return ((GtkImage) image).checkImage (observer); + + if (image instanceof AsyncImage) + return ((AsyncImage) image).checkImage(observer); + + if (observer != null) + observer.imageUpdate (image, status, + -1, -1, + image.getWidth (observer), + image.getHeight (observer)); + + return status; + } + + /** + * Helper to return either a Image -- the argument -- or a + * GtkImage with the errorLoading flag set if the argument is null. + */ + static Image imageOrError(Image b) + { + if (b == null) + return GtkImage.getErrorImage(); + else + return b; + } + + public Image createImage (String filename) + { + if (filename.length() == 0) + return new GtkImage (); + + Image image; + try + { + image = CairoSurface.getBufferedImage( new GtkImage( filename ) ); + } + catch (IllegalArgumentException iae) + { + image = null; + } + return imageOrError(image); + } + + public Image createImage (URL url) + { + return new AsyncImage(url); + } + + public Image createImage (ImageProducer producer) + { + if (producer == null) + return null; + + Image image; + try + { + image = CairoSurface.getBufferedImage( new GtkImage( producer ) ); + } + catch (IllegalArgumentException iae) + { + image = null; + } + return imageOrError(image); + } + + public Image createImage (byte[] imagedata, int imageoffset, + int imagelength) + { + Image image; + try + { + byte[] data = new byte[ imagelength ]; + System.arraycopy(imagedata, imageoffset, data, 0, imagelength); + image = CairoSurface.getBufferedImage( new GtkImage( data ) ); + } + catch (IllegalArgumentException iae) + { + image = null; + } + return imageOrError(image); + } + + /** + * Creates an ImageProducer from the specified URL. The image is assumed + * to be in a recognised format. + * + * @param url URL to read image data from. + */ + public ImageProducer createImageProducer(URL url) + { + return createImage( url ).getSource(); + } + + /** + * Returns the native color model (which isn't the same as the default + * ARGB color model, but doesn't have to be). + */ + public ColorModel getColorModel () + { + /* Return the GDK-native ABGR format */ + return new DirectColorModel(32, + 0x000000FF, + 0x0000FF00, + 0x00FF0000, + 0xFF000000); + } + + public String[] getFontList () + { + return (new String[] { "Dialog", + "DialogInput", + "Monospaced", + "Serif", + "SansSerif" }); + } + + static class LRUCache<K,V> extends LinkedHashMap<K,V> + { + int max_entries; + public LRUCache(int max) + { + super(max, 0.75f, true); + max_entries = max; + } + protected boolean removeEldestEntry(Map.Entry eldest) + { + return size() > max_entries; + } + } + + private LRUCache<Map,ClasspathFontPeer> fontCache = + new LRUCache<Map,ClasspathFontPeer>(50); + private LRUCache<Object,Image> imageCache = new LRUCache<Object,Image>(50); + + public FontMetrics getFontMetrics (Font font) + { + return ((GdkFontPeer) font.getPeer()).getFontMetrics(font); + } + + public Image getImage (String filename) + { + if (imageCache.containsKey(filename)) + return imageCache.get(filename); + else + { + Image im = createImage(filename); + imageCache.put(filename, im); + return im; + } + } + + public Image getImage (URL url) + { + if (imageCache.containsKey(url)) + return imageCache.get(url); + else + { + Image im = createImage(url); + imageCache.put(url, im); + return im; + } + } + + public PrintJob getPrintJob (Frame frame, String jobtitle, Properties props) + { + SecurityManager sm; + sm = System.getSecurityManager(); + if (sm != null) + sm.checkPrintJobAccess(); + + return null; + } + + public native int getScreenResolution(); + + public Dimension getScreenSize () + { + int dim[] = new int[2]; + getScreenSizeDimensions(dim); + return new Dimension(dim[0], dim[1]); + } + + public Clipboard getSystemClipboard() + { + SecurityManager secman = System.getSecurityManager(); + if (secman != null) + secman.checkSystemClipboardAccess(); + + return GtkClipboard.getClipboardInstance(); + } + + public Clipboard getSystemSelection() + { + SecurityManager secman = System.getSecurityManager(); + if (secman != null) + secman.checkSystemClipboardAccess(); + + return GtkClipboard.getSelectionInstance(); + } + + /** + * Prepares a GtkImage. For every other kind of Image it just + * assumes the image is already prepared for rendering. + */ + public boolean prepareImage (Image image, int width, int height, + ImageObserver observer) + { + /* GtkImages are always prepared, as long as they're loaded. */ + if (image instanceof GtkImage) + return ((((GtkImage)image).checkImage (observer) + & ImageObserver.ALLBITS) != 0); + + if (image instanceof AsyncImage) + { + AsyncImage aImg = (AsyncImage) image; + aImg.addObserver(observer); + return aImg.realImage != null; + } + + /* Assume anything else is too */ + return true; + } + + public native void sync(); + + protected void setComponentState (Component c, GtkComponentPeer cp) + { + /* Make the Component reflect Peer defaults */ + if (c.getForeground () == null) + c.setForeground (cp.getForeground ()); + if (c.getBackground () == null) + c.setBackground (cp.getBackground ()); + // if (c.getFont () == null) + // c.setFont (cp.getFont ()); + + /* Make the Peer reflect the state of the Component */ + if (! (c instanceof Window)) + { + cp.setCursor (c.getCursor ()); + + Rectangle bounds = c.getBounds (); + cp.setBounds (bounds.x, bounds.y, bounds.width, bounds.height); + cp.setVisible (c.isVisible ()); + } + } + + protected ButtonPeer createButton (Button b) + { + checkHeadless(); + return new GtkButtonPeer (b); + } + + protected CanvasPeer createCanvas (Canvas c) + { + checkHeadless(); + return new GtkCanvasPeer (c); + } + + protected CheckboxPeer createCheckbox (Checkbox cb) + { + checkHeadless(); + return new GtkCheckboxPeer (cb); + } + + protected CheckboxMenuItemPeer createCheckboxMenuItem (CheckboxMenuItem cmi) + { + checkHeadless(); + return new GtkCheckboxMenuItemPeer (cmi); + } + + protected ChoicePeer createChoice (Choice c) + { + checkHeadless(); + return new GtkChoicePeer (c); + } + + protected DialogPeer createDialog (Dialog d) + { + checkHeadless(); + GtkMainThread.createWindow(); + return new GtkDialogPeer (d); + } + + protected FileDialogPeer createFileDialog (FileDialog fd) + { + checkHeadless(); + return new GtkFileDialogPeer (fd); + } + + protected FramePeer createFrame (Frame f) + { + checkHeadless(); + GtkMainThread.createWindow(); + return new GtkFramePeer (f); + } + + protected LabelPeer createLabel (Label label) + { + checkHeadless(); + return new GtkLabelPeer (label); + } + + protected ListPeer createList (List list) + { + checkHeadless(); + return new GtkListPeer (list); + } + + protected MenuPeer createMenu (Menu m) + { + checkHeadless(); + return new GtkMenuPeer (m); + } + + protected MenuBarPeer createMenuBar (MenuBar mb) + { + checkHeadless(); + return new GtkMenuBarPeer (mb); + } + + protected MenuItemPeer createMenuItem (MenuItem mi) + { + checkHeadless(); + return new GtkMenuItemPeer (mi); + } + + protected PanelPeer createPanel (Panel p) + { + checkHeadless(); + return new GtkPanelPeer (p); + } + + protected PopupMenuPeer createPopupMenu (PopupMenu target) + { + checkHeadless(); + return new GtkPopupMenuPeer (target); + } + + protected ScrollPanePeer createScrollPane (ScrollPane sp) + { + checkHeadless(); + return new GtkScrollPanePeer (sp); + } + + protected ScrollbarPeer createScrollbar (Scrollbar sb) + { + checkHeadless(); + return new GtkScrollbarPeer (sb); + } + + protected TextAreaPeer createTextArea (TextArea ta) + { + checkHeadless(); + return new GtkTextAreaPeer (ta); + } + + protected TextFieldPeer createTextField (TextField tf) + { + checkHeadless(); + return new GtkTextFieldPeer (tf); + } + + protected WindowPeer createWindow (Window w) + { + checkHeadless(); + GtkMainThread.createWindow(); + return new GtkWindowPeer (w); + } + + public EmbeddedWindowPeer createEmbeddedWindow (EmbeddedWindow w) + { + checkHeadless(); + GtkMainThread.createWindow(); + return new GtkEmbeddedWindowPeer (w); + } + + /** + * @deprecated part of the older "logical font" system in earlier AWT + * implementations. Our newer Font class uses getClasspathFontPeer. + */ + protected FontPeer getFontPeer (String name, int style) { + // All fonts get a default size of 12 if size is not specified. + return getFontPeer(name, style, 12); + } + + /** + * Private method that allows size to be set at initialization time. + */ + private FontPeer getFontPeer (String name, int style, int size) + { + Map<TextAttribute,Object> attrs = new HashMap<TextAttribute,Object>(); + ClasspathFontPeer.copyStyleToAttrs (style, attrs); + ClasspathFontPeer.copySizeToAttrs (size, attrs); + return getClasspathFontPeer (name, attrs); + } + + /** + * Newer method to produce a peer for a Font object, even though Sun's + * design claims Font should now be peerless, we do not agree with this + * model, hence "ClasspathFontPeer". + */ + + public ClasspathFontPeer getClasspathFontPeer (String name, + Map<?,?> attrs) + { + Map<Object,Object> keyMap = new HashMap<Object,Object>(attrs); + // We don't know what kind of "name" the user requested (logical, face, + // family), and we don't actually *need* to know here. The worst case + // involves failure to consolidate fonts with the same backend in our + // cache. This is harmless. + keyMap.put ("GtkToolkit.RequestedFontName", name); + if (fontCache.containsKey (keyMap)) + return fontCache.get (keyMap); + else + { + ClasspathFontPeer newPeer = new GdkFontPeer (name, attrs); + fontCache.put (keyMap, newPeer); + return newPeer; + } + } + + protected EventQueue getSystemEventQueueImpl() + { + synchronized (GtkToolkit.class) + { + if (q == null) + { + q = new EventQueue(); + } + } + return q; + } + + public Cursor createCustomCursor(Image image, Point hotspot, String name) + { + return new GtkCursor(image, hotspot, name); + } + + protected native void loadSystemColors (int[] systemColors); + + public DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent e) + { + if (GraphicsEnvironment.isHeadless()) + throw new InvalidDnDOperationException(); + return new GtkDragSourceContextPeer(e); + } + + public <T extends DragGestureRecognizer> T + createDragGestureRecognizer(Class<T> recognizer, DragSource ds, + Component comp, int actions, + DragGestureListener l) + { + if (recognizer.getName().equals("java.awt.dnd.MouseDragGestureRecognizer") + && ! GraphicsEnvironment.isHeadless()) + { + GtkMouseDragGestureRecognizer gestureRecognizer + = new GtkMouseDragGestureRecognizer(ds, comp, actions, l); + gestureRecognizer.registerListeners(); + return recognizer.cast(gestureRecognizer); + } + else + { + return null; + } + } + + public Map<TextAttribute,?> mapInputMethodHighlight(InputMethodHighlight highlight) + { + throw new Error("not implemented"); + } + + public Rectangle getBounds() + { + int[] dims = new int[2]; + getScreenSizeDimensions(dims); + return new Rectangle(0, 0, dims[0], dims[1]); + } + + // ClasspathToolkit methods + + public GraphicsEnvironment getLocalGraphicsEnvironment() + { + return new GdkGraphicsEnvironment(); + } + + public Font createFont(int format, InputStream stream) + { + throw new UnsupportedOperationException(); + } + + public RobotPeer createRobot (GraphicsDevice screen) throws AWTException + { + return new GdkRobotPeer (screen); + } + + public boolean getLockingKeyState(int keyCode) + { + int state = getLockState(keyCode); + + if (state != -1) + return state == 1; + + if (AWTUtilities.isValidKey(keyCode)) + throw new UnsupportedOperationException + ("cannot get locking state of key code " + keyCode); + + throw new IllegalArgumentException("invalid key code " + keyCode); + } + + protected native int getLockState(int keyCode); + + public void registerImageIOSpis(IIORegistry reg) + { + GdkPixbufDecoder.registerSpis(reg); + } + + protected MouseInfoPeer getMouseInfoPeer() + { + return new GtkMouseInfoPeer(); + } + + public boolean isFrameStateSupported(int state) + { + // GTK supports ICONFIED, NORMAL and MAXIMIZE_BOTH, but + // not (yet?) MAXIMIZE_VERT and MAXIMIZE_HORIZ. + return state == Frame.NORMAL || state == Frame.ICONIFIED + || state == Frame.MAXIMIZED_BOTH; + } + + private void checkHeadless() + { + if (GraphicsEnvironment.isHeadless()) + throw new HeadlessException(); + } + + public native int getMouseNumberOfButtons(); + + @Override + public boolean isModalExclusionTypeSupported + (Dialog.ModalExclusionType modalExclusionType) + { + return false; + } + + @Override + public boolean isModalityTypeSupported(Dialog.ModalityType modalityType) + { + return false; + } + +} // class GtkToolkit |