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Diffstat (limited to 'libjava/gnu/awt/gtk/GtkComponentPeer.java')
-rw-r--r-- | libjava/gnu/awt/gtk/GtkComponentPeer.java | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/libjava/gnu/awt/gtk/GtkComponentPeer.java b/libjava/gnu/awt/gtk/GtkComponentPeer.java new file mode 100644 index 0000000..c2e1c53 --- /dev/null +++ b/libjava/gnu/awt/gtk/GtkComponentPeer.java @@ -0,0 +1,269 @@ +/* GtkComponentPeer.java -- Implements ComponentPeer with GTK + Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. + +This file is part of the peer AWT libraries of GNU Classpath. + +This library is free software; you can redistribute it and/or modify +it under the terms of the GNU Library General Public License as published +by the Free Software Foundation, either version 2 of the License, or +(at your option) any later verion. + +This library 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 Library General Public License for more details. + +You should have received a copy of the GNU Library General Public License +along with this library; if not, write to the Free Software Foundation +Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA. */ + + +package gnu.awt.gtk; + +import java.awt.*; +import java.awt.event.*; +import java.awt.image.*; +import java.awt.peer.ComponentPeer; + +public abstract class GtkComponentPeer implements ComponentPeer +{ + // We need to put a reference to the Event Queue somewhere. This seems like + // a convenient place. + static EventQueue eventQueue = new EventQueue(); + + Component awtComponent; + gnu.gcj.RawData ptr; // Actual gtk object. + + static + { + // This will start the main toolkit thread. + GtkToolkit.instance.init(); + } + + public int checkImage (Image image, int width, int height, + ImageObserver observer) + { + return -1; + /* + GtkImage i = (GtkImage) image; + return i.checkImage (); + */ + } + + public Image createImage (ImageProducer producer) + { + return null; + //return new GtkImage (producer, null); + } + + public Image createImage (int width, int height) + { + return null; + /* + GdkGraphics g = new GdkGraphics (width, height); + return new GtkOffScreenImage (null, g, width, height); + */ + } + + public void disable () + { + setEnabled (false); + } + + native public void dispose (); + + public void enable () + { + setEnabled (true); + } + + /** + * Get the graphics configuration of the component. The color model + * of the component can be derived from the configuration. + */ + public GraphicsConfiguration getGraphicsConfiguration () + { + return null; + } + + public FontMetrics getFontMetrics (Font font) + { + return null; + //return new GdkFontMetrics (font); + } + + public Graphics getGraphics () + { + throw new InternalError (); + } + + public native Point getLocationOnScreen (); + public native Dimension getMinimumSize(); + public native Dimension getPreferredSize(); + + public Toolkit getToolkit () + { + return GtkToolkit.instance; + } + + public void handleEvent(AWTEvent e) + { + } + + public void hide () + { + setVisible (false); + } + + public void show () + { + setVisible (true); + } + + public boolean isFocusTraversable () + { + return true; + } + + public Dimension minimumSize () + { + return getMinimumSize(); + } + + public Dimension preferredSize() + { + return getPreferredSize(); + } + + public void paint (Graphics g) + { + awtComponent.paint (g); // ??? + } + + public boolean prepareImage (Image image, int width, int height, + ImageObserver observer) + { + /* + GtkImage i = (GtkImage) image; + + if (i.isLoaded ()) return true; + + class PrepareImage extends Thread + { + GtkImage image; + ImageObserver observer; + + PrepareImage (GtkImage image, ImageObserver observer) + { + this.image = image; + this.observer = observer; + } + + public void run () + { + // XXX: need to return data to image observer + image.source.startProduction (null); + } + } + + new PrepareImage (i, observer).start (); + */ + return false; + } + + public void print (Graphics g) + { + throw new RuntimeException (); + } + + native public void requestFocus (); + + public void repaint (long tm, int x, int y, int width, int height) + { + // ??? + eventQueue.postEvent (new PaintEvent ( + awtComponent, PaintEvent.UPDATE, new Rectangle (x, y, width, height))); + } + + + public void reshape (int x, int y, int width, int height) + { + setBounds (x, y, width, height); + } + + public native void setBounds (int x, int y, int width, int height); + public native void setCursor (Cursor cursor); + + public native void setEnabled (boolean b); + + public native void setEventMask(long eventMask); + public native void setFont(Font font); + public native void setForeground(Color color); + public native void setBackground (Color c); + public native void setVisible(boolean visible); + + native void realize(); + + protected GtkComponentPeer (Component awtComponent) + { + this.awtComponent = awtComponent; + create(); + + // TODO: Each of these calls will currently perform a separate native lock. + // It may be desirable to use our own, recusive mutex implementation by + // passing our threads implementation to g_threads_init(). + // This would greatly reduce locking calls in the peer code, and allow us + // to aquire the lock from java code. + Rectangle r = awtComponent.getBounds(); + setBounds (r.x, r.y, r.width, r.height); + + Color c = awtComponent.getForeground(); + if (c != null) + setForeground (c); + c = awtComponent.getBackground(); + if (c != null) + setBackground (c); + setEnabled (awtComponent.isEnabled()); + Font f = awtComponent.getFont(); + if (f != null) + setFont (awtComponent.getFont()); + + realize(); + } + + protected native void create (); + + // FIXME: It may make sense to do the following directly from the native + // code. + protected void postMouseEvent(int id, long when, int mods, int x, int y, + int clickCount, boolean popupTrigger) + { + eventQueue.postEvent(new MouseEvent(awtComponent, id, when, mods, x, y, + clickCount, popupTrigger)); + } + + protected void postExposeEvent (int x, int y, int width, int height) + { + eventQueue.postEvent (new PaintEvent (awtComponent, PaintEvent.PAINT, + new Rectangle (x, y, width, height))); + } + + protected void postKeyEvent (int id, long when, int mods, + int keyCode, char keyChar) + { + eventQueue.postEvent (new KeyEvent (awtComponent, id, when, mods, + keyCode, keyChar)); + } + + protected void postFocusEvent (int id, boolean temporary) + { + eventQueue.postEvent (new FocusEvent (awtComponent, id, temporary)); + } + + protected void postItemEvent (Object item, int stateChange) + { + eventQueue.postEvent (new ItemEvent ((ItemSelectable)awtComponent, + ItemEvent.ITEM_STATE_CHANGED, + item, stateChange)); + } +} |