libjava/classpath/gnu/java/awt/peer/gtk/GtkComponentPeer.java - rust-lang/gcc - Git at Google

 /* GtkComponentPeer.java -- Implements ComponentPeer with GTK
    Copyright (C) 1998, 1999, 2002, 2004, 2005  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 java.awt.AWTEvent;
 import java.awt.AWTException;
 import java.awt.BufferCapabilities;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Container;
 import java.awt.Cursor;
 import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.GraphicsConfiguration;
 import java.awt.Image;
 import java.awt.Insets;
 import java.awt.ItemSelectable;
 import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.Toolkit;
 import java.awt.Window;
 import java.awt.event.FocusEvent;
 import java.awt.event.ItemEvent;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
 import java.awt.event.PaintEvent;
 import java.awt.event.TextEvent;
 import java.awt.image.BufferedImage;
 import java.awt.image.ColorModel;
 import java.awt.image.ImageObserver;
 import java.awt.image.ImageProducer;
 import java.awt.image.VolatileImage;
 import java.awt.peer.ComponentPeer;
 import java.awt.peer.ContainerPeer;
 import java.awt.peer.WindowPeer;
 import java.util.Timer;
 import java.util.TimerTask;

 public class GtkComponentPeer extends GtkGenericPeer
   implements ComponentPeer
 {
   VolatileImage backBuffer;
   BufferCapabilities caps;

   Component awtComponent;

   Insets insets;

   boolean isInRepaint;

   static final Timer repaintTimer = new Timer (true);

   /* this isEnabled differs from Component.isEnabled, in that it
      knows if a parent is disabled.  In that case Component.isEnabled
      may return true, but our isEnabled will always return false */
   native boolean isEnabled ();
   static native boolean modalHasGrab();

   native int[] gtkWidgetGetForeground ();
   native int[] gtkWidgetGetBackground ();
   native void gtkWidgetGetDimensions (int[] dim);
   native void gtkWidgetGetPreferredDimensions (int[] dim);
   native void gtkWindowGetLocationOnScreen (int[] point);
   native void gtkWidgetGetLocationOnScreen (int[] point);
   native void gtkWidgetSetCursor (int type);
   native void gtkWidgetSetCursorUnlocked (int type);
   native void gtkWidgetSetBackground (int red, int green, int blue);
   native void gtkWidgetSetForeground (int red, int green, int blue);
   native void gtkWidgetSetSensitive (boolean sensitive);
   native void gtkWidgetSetParent (ComponentPeer parent);
   native void gtkWidgetRequestFocus ();
   native void gtkWidgetDispatchKeyEvent (int id, long when, int mods,
                                          int keyCode, int keyLocation);

   native boolean isRealized ();

   void realize ()
   {
     // Default implementation does nothing
   }

   native void setNativeEventMask ();

   void create ()
   {
     throw new RuntimeException ();
   }

   native void connectSignals ();

   protected GtkComponentPeer (Component awtComponent)
   {
     super (awtComponent);
     this.awtComponent = awtComponent;
     insets = new Insets (0, 0, 0, 0);

     create ();

     connectSignals ();

     if (awtComponent.getForeground () != null)
       setForeground (awtComponent.getForeground ());
     if (awtComponent.getBackground () != null)
       setBackground (awtComponent.getBackground ());
     if (awtComponent.getFont() != null)
       setFont(awtComponent.getFont());

     Component parent = awtComponent.getParent ();

     // Only set our parent on the GTK side if our parent on the AWT
     // side is not showing.  Otherwise the gtk peer will be shown
     // before we've had a chance to position and size it properly.
     if (awtComponent instanceof Window
         || (parent != null && ! parent.isShowing ()))
       setParentAndBounds ();

     setNativeEventMask ();

     realize ();
   }

   void setParentAndBounds ()
   {
     setParent ();

     setComponentBounds ();

     setVisibleAndEnabled ();
   }

   void setParent ()
   {
     ComponentPeer p;
     Component component = awtComponent;
     do
       {
         component = component.getParent ();
         p = component.getPeer ();
       }
     while (p instanceof java.awt.peer.LightweightPeer);

     if (p != null)
       gtkWidgetSetParent (p);
   }

   void beginNativeRepaint ()
   {
     isInRepaint = true;
   }

   void endNativeRepaint ()
   {
     isInRepaint = false;
   }

   /*
    * Set the bounds of this peer's AWT Component based on dimensions
    * returned by the native windowing system.  Most Components impose
    * their dimensions on the peers which is what the default
    * implementation does.  However some peers, like GtkFileDialogPeer,
    * need to pass their size back to the AWT Component.
    */
   void setComponentBounds ()
   {
     Rectangle bounds = awtComponent.getBounds ();

     if (bounds.x == 0 && bounds.y == 0
         && bounds.width == 0 && bounds.height == 0)
       return;

     setBounds (bounds.x, bounds.y, bounds.width, bounds.height);
   }

   void setVisibleAndEnabled ()
   {
     setVisible (awtComponent.isVisible ());
     setEnabled (awtComponent.isEnabled ());
   }

   public int checkImage (Image image, int width, int height,
 			 ImageObserver observer)
   {
     return getToolkit().checkImage(image, width, height, observer);
   }

   public Image createImage (ImageProducer producer)
   {
     return new GtkImage (producer);
   }

   public Image createImage (int width, int height)
   {
     Image image;
     if (GtkToolkit.useGraphics2D ())
       image = new BufferedImage (width, height, BufferedImage.TYPE_INT_RGB);
     else
       image = new GtkImage (width, height);

     Graphics g = image.getGraphics();
     g.setColor(getBackground());
     g.fillRect(0, 0, width, height);
     return image;
   }

   public void disable ()
   {
     setEnabled (false);
   }

   public void enable ()
   {
     setEnabled (true);
   }

   public ColorModel getColorModel ()
   {
     return ColorModel.getRGBdefault ();
   }

   public FontMetrics getFontMetrics (Font font)
   {
     return getToolkit().getFontMetrics(font);
   }

   public Graphics getGraphics ()
   {
     if (GtkToolkit.useGraphics2D ())
         return new GdkGraphics2D (this);
     else
         return new GdkGraphics (this);
   }

   public Point getLocationOnScreen ()
   {
     int point[] = new int[2];
     if( this instanceof WindowPeer )
       gtkWindowGetLocationOnScreen (point);
     else
       gtkWidgetGetLocationOnScreen (point);
     return new Point (point[0], point[1]);
   }

   public Dimension getMinimumSize ()
   {
     return minimumSize ();
   }

   public Dimension getPreferredSize ()
   {
     return preferredSize ();
   }

   public Toolkit getToolkit ()
   {
     return Toolkit.getDefaultToolkit();
   }

   public void handleEvent (AWTEvent event)
   {
     int id = event.getID();
     KeyEvent ke = null;

     switch (id)
       {
       case PaintEvent.PAINT:
       case PaintEvent.UPDATE:
         {
           try
             {
               Graphics g = getGraphics ();

               // Some peers like GtkFileDialogPeer are repainted by Gtk itself
               if (g == null)
                 break;

               g.setClip (((PaintEvent) event).getUpdateRect());

               if (id == PaintEvent.PAINT)
                 awtComponent.paint (g);
               else
                 awtComponent.update (g);

               g.dispose ();
             }
           catch (InternalError e)
             {
               System.err.println (e);
             }
         }
         break;
       case KeyEvent.KEY_PRESSED:
         ke = (KeyEvent) event;
         gtkWidgetDispatchKeyEvent (ke.getID (), ke.getWhen (), ke.getModifiersEx (),
                                    ke.getKeyCode (), ke.getKeyLocation ());
         break;
       case KeyEvent.KEY_RELEASED:
         ke = (KeyEvent) event;
         gtkWidgetDispatchKeyEvent (ke.getID (), ke.getWhen (), ke.getModifiersEx (),
                                    ke.getKeyCode (), ke.getKeyLocation ());
         break;
       }
   }

   public boolean isFocusTraversable ()
   {
     return true;
   }

   public Dimension minimumSize ()
   {
     int dim[] = new int[2];

     gtkWidgetGetPreferredDimensions (dim);

     return new Dimension (dim[0], dim[1]);
   }

   public void paint (Graphics g)
   {
   }

   public Dimension preferredSize ()
   {
     int dim[] = new int[2];

     gtkWidgetGetPreferredDimensions (dim);

     return new Dimension (dim[0], dim[1]);
   }

   public boolean prepareImage (Image image, int width, int height,
 			       ImageObserver observer)
   {
     return getToolkit().prepareImage(image, width, height, observer);
   }

   public void print (Graphics g)
   {
     throw new RuntimeException ();
   }

   public void repaint (long tm, int x, int y, int width, int height)
   {
     if (x == 0 && y == 0 && width == 0 && height == 0)
       return;

     repaintTimer.schedule(new RepaintTimerTask(x, y, width, height), tm);
   }

   private class RepaintTimerTask extends TimerTask
   {
     private int x, y, width, height;

     RepaintTimerTask(int x, int y, int width, int height)
     {
       this.x = x;
       this.y = y;
       this.width = width;
       this.height = height;
     }

     public void run()
     {
       q().postEvent (new PaintEvent (awtComponent, PaintEvent.UPDATE,
                                      new Rectangle (x, y, width, height)));
     }
   }

   public void requestFocus ()
   {
     gtkWidgetRequestFocus();
     postFocusEvent(FocusEvent.FOCUS_GAINED, false);
   }

   public void reshape (int x, int y, int width, int height)
   {
     setBounds (x, y, width, height);
   }

   public void setBackground (Color c)
   {
     gtkWidgetSetBackground (c.getRed(), c.getGreen(), c.getBlue());
   }

   native void setNativeBounds (int x, int y, int width, int height);

   public void setBounds (int x, int y, int width, int height)
   {
     int new_x = x;
     int new_y = y;

     Component parent = awtComponent.getParent ();
     Component next_parent;

     // Heavyweight components that are children of one or more
     // lightweight containers have to be handled specially.  Because
     // calls to GLightweightPeer.setBounds do nothing, GTK has no
     // knowledge of the lightweight containers' positions.  So we have
     // to add the offsets manually when placing a heavyweight
     // component within a lightweight container.  The lightweight
     // container may itself be in a lightweight container and so on,
     // so we need to continue adding offsets until we reach a
     // container whose position GTK knows -- that is, the first
     // non-lightweight.
     boolean lightweightChild = false;
     Insets i;
     while (parent.isLightweight ())
       {
 	lightweightChild = true;

         next_parent = parent.getParent ();

 	i = ((Container) parent).getInsets ();

         if (next_parent instanceof Window)
           {
             new_x += i.left;
             new_y += i.top;
           }
         else
           {
             new_x += parent.getX () + i.left;
             new_y += parent.getY () + i.top;
           }

 	parent = next_parent;
       }

     // We only need to convert from Java to GTK coordinates if we're
     // placing a heavyweight component in a Window.
     if (parent instanceof Window && !lightweightChild)
       {
         GtkWindowPeer peer = (GtkWindowPeer) parent.getPeer ();
         // important: we want the window peer's insets here, not the
         // window's, since user sub-classes of Window can override
         // getInset and we only want to correct for the frame borders,
         // not for any user-defined inset values
         Insets insets = peer.getInsets ();

         int menuBarHeight = 0;
         if (peer instanceof GtkFramePeer)
           menuBarHeight = ((GtkFramePeer) peer).getMenuBarHeight ();

         new_x = x - insets.left;
         new_y = y - insets.top + menuBarHeight;
       }

     setNativeBounds (new_x, new_y, width, height);
   }

   void setCursor ()
   {
     setCursor (awtComponent.getCursor ());
   }

   public void setCursor (Cursor cursor)
   {
     if (Thread.currentThread() == GtkToolkit.mainThread)
       gtkWidgetSetCursorUnlocked (cursor.getType ());
     else
       gtkWidgetSetCursor (cursor.getType ());
   }

   public void setEnabled (boolean b)
   {
     gtkWidgetSetSensitive (b);
   }

   public void setFont (Font f)
   {
     // FIXME: This should really affect the widget tree below me.
     // Currently this is only handled if the call is made directly on
     // a text widget, which implements setFont() itself.
     gtkWidgetModifyFont(f.getName(), f.getStyle(), f.getSize());
   }

   public void setForeground (Color c)
   {
     gtkWidgetSetForeground (c.getRed(), c.getGreen(), c.getBlue());
   }

   public Color getForeground ()
   {
     int rgb[] = gtkWidgetGetForeground ();
     return new Color (rgb[0], rgb[1], rgb[2]);
   }

   public Color getBackground ()
   {
     int rgb[] = gtkWidgetGetBackground ();
     return new Color (rgb[0], rgb[1], rgb[2]);
   }

   public native void setVisibleNative (boolean b);
   public native void setVisibleNativeUnlocked (boolean b);

   public void setVisible (boolean b)
   {
     if (Thread.currentThread() == GtkToolkit.mainThread)
       setVisibleNativeUnlocked (b);
     else
       setVisibleNative (b);
   }

   public void hide ()
   {
     setVisible (false);
   }

   public void show ()
   {
     setVisible (true);
   }

   protected void postMouseEvent(int id, long when, int mods, int x, int y,
 				int clickCount, boolean popupTrigger)
   {
     q().postEvent(new MouseEvent(awtComponent, id, when, mods, x, y,
 			       clickCount, popupTrigger));
   }

   protected void postExposeEvent (int x, int y, int width, int height)
   {
     if (!isInRepaint)
       q().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, int keyLocation)
   {
     KeyEvent keyEvent = new KeyEvent (awtComponent, id, when, mods,
                                       keyCode, keyChar, keyLocation);

     // Also post a KEY_TYPED event if keyEvent is a key press that
     // doesn't represent an action or modifier key.
     if (keyEvent.getID () == KeyEvent.KEY_PRESSED
         && (!keyEvent.isActionKey ()
             && keyCode != KeyEvent.VK_SHIFT
             && keyCode != KeyEvent.VK_CONTROL
             && keyCode != KeyEvent.VK_ALT))
       {
         synchronized (q)
           {
             q().postEvent (keyEvent);
             q().postEvent (new KeyEvent (awtComponent, KeyEvent.KEY_TYPED, when, mods,
                                         KeyEvent.VK_UNDEFINED, keyChar, keyLocation));
           }
       }
     else
       q().postEvent (keyEvent);
   }

   protected void postFocusEvent (int id, boolean temporary)
   {
     q().postEvent (new FocusEvent (awtComponent, id, temporary));
   }

   protected void postItemEvent (Object item, int stateChange)
   {
     q().postEvent (new ItemEvent ((ItemSelectable)awtComponent,
 				ItemEvent.ITEM_STATE_CHANGED,
 				item, stateChange));
   }

   protected void postTextEvent ()
   {
     q().postEvent (new TextEvent (awtComponent, TextEvent.TEXT_VALUE_CHANGED));
   }

   public GraphicsConfiguration getGraphicsConfiguration ()
   {
     // FIXME: just a stub for now.
     return null;
   }

   public void setEventMask (long mask)
   {
     // FIXME: just a stub for now.
   }

   public boolean isFocusable ()
   {
     return false;
   }

   public boolean requestFocus (Component source, boolean b1,
                                boolean b2, long x)
   {
     return false;
   }

   public boolean isObscured ()
   {
     return false;
   }

   public boolean canDetermineObscurity ()
   {
     return false;
   }

   public void coalescePaintEvent (PaintEvent e)
   {

   }

   public void updateCursorImmediately ()
   {
     if (awtComponent.getCursor() != null)
       setCursor(awtComponent.getCursor());
   }

   public boolean handlesWheelScrolling ()
   {
     return false;
   }

   // Convenience method to create a new volatile image on the screen
   // on which this component is displayed.
   public VolatileImage createVolatileImage (int width, int height)
   {
     return new GtkVolatileImage (width, height);
   }

   // Creates buffers used in a buffering strategy.
   public void createBuffers (int numBuffers, BufferCapabilities caps)
     throws AWTException
   {
     // numBuffers == 2 implies double-buffering, meaning one back
     // buffer and one front buffer.
     if (numBuffers == 2)
       backBuffer = new GtkVolatileImage(awtComponent.getWidth(),
 					awtComponent.getHeight(),
 					caps.getBackBufferCapabilities());
     else
       throw new AWTException("GtkComponentPeer.createBuffers:"
 			     + " multi-buffering not supported");
     this.caps = caps;
   }

   // Return the back buffer.
   public Image getBackBuffer ()
   {
     return backBuffer;
   }

   // FIXME: flip should be implemented as a fast native operation
   public void flip (BufferCapabilities.FlipContents contents)
   {
     getGraphics().drawImage(backBuffer,
 			    awtComponent.getWidth(),
 			    awtComponent.getHeight(),
 			    null);

     // create new back buffer and clear it to the background color.
     if (contents == BufferCapabilities.FlipContents.BACKGROUND)
 	{
 	  backBuffer = createVolatileImage(awtComponent.getWidth(),
 					   awtComponent.getHeight());
 	  backBuffer.getGraphics().clearRect(0, 0,
 					     awtComponent.getWidth(),
 					     awtComponent.getHeight());
 	}
     // FIXME: support BufferCapabilities.FlipContents.PRIOR
   }

   // Release the resources allocated to back buffers.
   public void destroyBuffers ()
   {
     backBuffer.flush();
   }

   public String toString ()
   {
     return "peer of " + awtComponent.toString();
   }
   public Rectangle getBounds()
   {
       // FIXME: implement
     return null;
   }
   public void reparent(ContainerPeer parent)
   {
     // FIXME: implement

   }
   public void setBounds(int x, int y, int width, int height, int z)
   {
     // FIXME: implement
       setBounds (x, y, width, height);

   }
   public boolean isReparentSupported()
   {
     // FIXME: implement

     return false;
   }
   public void layout()
   {
     // FIXME: implement

   }
 }
	/* GtkComponentPeer.java -- Implements ComponentPeer with GTK
	Copyright (C) 1998, 1999, 2002, 2004, 2005 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 java.awt.AWTEvent;
	import java.awt.AWTException;
	import java.awt.BufferCapabilities;
	import java.awt.Color;
	import java.awt.Component;
	import java.awt.Container;
	import java.awt.Cursor;
	import java.awt.Dimension;
	import java.awt.Font;
	import java.awt.FontMetrics;
	import java.awt.Graphics;
	import java.awt.Graphics2D;
	import java.awt.GraphicsConfiguration;
	import java.awt.Image;
	import java.awt.Insets;
	import java.awt.ItemSelectable;
	import java.awt.Point;
	import java.awt.Rectangle;
	import java.awt.Toolkit;
	import java.awt.Window;
	import java.awt.event.FocusEvent;
	import java.awt.event.ItemEvent;
	import java.awt.event.KeyEvent;
	import java.awt.event.MouseEvent;
	import java.awt.event.PaintEvent;
	import java.awt.event.TextEvent;
	import java.awt.image.BufferedImage;
	import java.awt.image.ColorModel;
	import java.awt.image.ImageObserver;
	import java.awt.image.ImageProducer;
	import java.awt.image.VolatileImage;
	import java.awt.peer.ComponentPeer;
	import java.awt.peer.ContainerPeer;
	import java.awt.peer.WindowPeer;
	import java.util.Timer;
	import java.util.TimerTask;

	public class GtkComponentPeer extends GtkGenericPeer
	implements ComponentPeer
	{
	VolatileImage backBuffer;
	BufferCapabilities caps;

	Component awtComponent;

	Insets insets;

	boolean isInRepaint;

	static final Timer repaintTimer = new Timer (true);

	/* this isEnabled differs from Component.isEnabled, in that it
	knows if a parent is disabled. In that case Component.isEnabled
	may return true, but our isEnabled will always return false */
	native boolean isEnabled ();
	static native boolean modalHasGrab();

	native int[] gtkWidgetGetForeground ();
	native int[] gtkWidgetGetBackground ();
	native void gtkWidgetGetDimensions (int[] dim);
	native void gtkWidgetGetPreferredDimensions (int[] dim);
	native void gtkWindowGetLocationOnScreen (int[] point);
	native void gtkWidgetGetLocationOnScreen (int[] point);
	native void gtkWidgetSetCursor (int type);
	native void gtkWidgetSetCursorUnlocked (int type);
	native void gtkWidgetSetBackground (int red, int green, int blue);
	native void gtkWidgetSetForeground (int red, int green, int blue);
	native void gtkWidgetSetSensitive (boolean sensitive);
	native void gtkWidgetSetParent (ComponentPeer parent);
	native void gtkWidgetRequestFocus ();
	native void gtkWidgetDispatchKeyEvent (int id, long when, int mods,
	int keyCode, int keyLocation);

	native boolean isRealized ();

	void realize ()
	{
	// Default implementation does nothing
	}

	native void setNativeEventMask ();

	void create ()
	{
	throw new RuntimeException ();
	}

	native void connectSignals ();

	protected GtkComponentPeer (Component awtComponent)
	{
	super (awtComponent);
	this.awtComponent = awtComponent;
	insets = new Insets (0, 0, 0, 0);

	create ();

	connectSignals ();

	if (awtComponent.getForeground () != null)
	setForeground (awtComponent.getForeground ());
	if (awtComponent.getBackground () != null)
	setBackground (awtComponent.getBackground ());
	if (awtComponent.getFont() != null)
	setFont(awtComponent.getFont());

	Component parent = awtComponent.getParent ();

	// Only set our parent on the GTK side if our parent on the AWT
	// side is not showing. Otherwise the gtk peer will be shown
	// before we've had a chance to position and size it properly.
	if (awtComponent instanceof Window
	\|\| (parent != null && ! parent.isShowing ()))
	setParentAndBounds ();

	setNativeEventMask ();

	realize ();
	}

	void setParentAndBounds ()
	{
	setParent ();

	setComponentBounds ();

	setVisibleAndEnabled ();
	}

	void setParent ()
	{
	ComponentPeer p;
	Component component = awtComponent;
	do
	{
	component = component.getParent ();
	p = component.getPeer ();
	}
	while (p instanceof java.awt.peer.LightweightPeer);

	if (p != null)
	gtkWidgetSetParent (p);
	}

	void beginNativeRepaint ()
	{
	isInRepaint = true;
	}

	void endNativeRepaint ()
	{
	isInRepaint = false;
	}

	/*
	* Set the bounds of this peer's AWT Component based on dimensions
	* returned by the native windowing system. Most Components impose
	* their dimensions on the peers which is what the default
	* implementation does. However some peers, like GtkFileDialogPeer,
	* need to pass their size back to the AWT Component.
	*/
	void setComponentBounds ()
	{
	Rectangle bounds = awtComponent.getBounds ();

	if (bounds.x == 0 && bounds.y == 0
	&& bounds.width == 0 && bounds.height == 0)
	return;

	setBounds (bounds.x, bounds.y, bounds.width, bounds.height);
	}

	void setVisibleAndEnabled ()
	{
	setVisible (awtComponent.isVisible ());
	setEnabled (awtComponent.isEnabled ());
	}

	public int checkImage (Image image, int width, int height,
	ImageObserver observer)
	{
	return getToolkit().checkImage(image, width, height, observer);
	}

	public Image createImage (ImageProducer producer)
	{
	return new GtkImage (producer);
	}

	public Image createImage (int width, int height)
	{
	Image image;
	if (GtkToolkit.useGraphics2D ())
	image = new BufferedImage (width, height, BufferedImage.TYPE_INT_RGB);
	else
	image = new GtkImage (width, height);

	Graphics g = image.getGraphics();
	g.setColor(getBackground());
	g.fillRect(0, 0, width, height);
	return image;
	}

	public void disable ()
	{
	setEnabled (false);
	}

	public void enable ()
	{
	setEnabled (true);
	}

	public ColorModel getColorModel ()
	{
	return ColorModel.getRGBdefault ();
	}

	public FontMetrics getFontMetrics (Font font)
	{
	return getToolkit().getFontMetrics(font);
	}

	public Graphics getGraphics ()
	{
	if (GtkToolkit.useGraphics2D ())
	return new GdkGraphics2D (this);
	else
	return new GdkGraphics (this);
	}

	public Point getLocationOnScreen ()
	{
	int point[] = new int[2];
	if( this instanceof WindowPeer )
	gtkWindowGetLocationOnScreen (point);
	else
	gtkWidgetGetLocationOnScreen (point);
	return new Point (point[0], point[1]);
	}

	public Dimension getMinimumSize ()
	{
	return minimumSize ();
	}

	public Dimension getPreferredSize ()
	{
	return preferredSize ();
	}

	public Toolkit getToolkit ()
	{
	return Toolkit.getDefaultToolkit();
	}

	public void handleEvent (AWTEvent event)
	{
	int id = event.getID();
	KeyEvent ke = null;

	switch (id)
	{
	case PaintEvent.PAINT:
	case PaintEvent.UPDATE:
	{
	try
	{
	Graphics g = getGraphics ();

	// Some peers like GtkFileDialogPeer are repainted by Gtk itself
	if (g == null)
	break;

	g.setClip (((PaintEvent) event).getUpdateRect());

	if (id == PaintEvent.PAINT)
	awtComponent.paint (g);
	else
	awtComponent.update (g);

	g.dispose ();
	}
	catch (InternalError e)
	{
	System.err.println (e);
	}
	}
	break;
	case KeyEvent.KEY_PRESSED:
	ke = (KeyEvent) event;
	gtkWidgetDispatchKeyEvent (ke.getID (), ke.getWhen (), ke.getModifiersEx (),
	ke.getKeyCode (), ke.getKeyLocation ());
	break;
	case KeyEvent.KEY_RELEASED:
	ke = (KeyEvent) event;
	gtkWidgetDispatchKeyEvent (ke.getID (), ke.getWhen (), ke.getModifiersEx (),
	ke.getKeyCode (), ke.getKeyLocation ());
	break;
	}
	}

	public boolean isFocusTraversable ()
	{
	return true;
	}

	public Dimension minimumSize ()
	{
	int dim[] = new int[2];

	gtkWidgetGetPreferredDimensions (dim);

	return new Dimension (dim[0], dim[1]);
	}

	public void paint (Graphics g)
	{
	}

	public Dimension preferredSize ()
	{
	int dim[] = new int[2];

	gtkWidgetGetPreferredDimensions (dim);

	return new Dimension (dim[0], dim[1]);
	}

	public boolean prepareImage (Image image, int width, int height,
	ImageObserver observer)
	{
	return getToolkit().prepareImage(image, width, height, observer);
	}

	public void print (Graphics g)
	{
	throw new RuntimeException ();
	}

	public void repaint (long tm, int x, int y, int width, int height)
	{
	if (x == 0 && y == 0 && width == 0 && height == 0)
	return;

	repaintTimer.schedule(new RepaintTimerTask(x, y, width, height), tm);
	}

	private class RepaintTimerTask extends TimerTask
	{
	private int x, y, width, height;

	RepaintTimerTask(int x, int y, int width, int height)
	{
	this.x = x;
	this.y = y;
	this.width = width;
	this.height = height;
	}

	public void run()
	{
	q().postEvent (new PaintEvent (awtComponent, PaintEvent.UPDATE,
	new Rectangle (x, y, width, height)));
	}
	}

	public void requestFocus ()
	{
	gtkWidgetRequestFocus();
	postFocusEvent(FocusEvent.FOCUS_GAINED, false);
	}

	public void reshape (int x, int y, int width, int height)
	{
	setBounds (x, y, width, height);
	}

	public void setBackground (Color c)
	{
	gtkWidgetSetBackground (c.getRed(), c.getGreen(), c.getBlue());
	}

	native void setNativeBounds (int x, int y, int width, int height);

	public void setBounds (int x, int y, int width, int height)
	{
	int new_x = x;
	int new_y = y;

	Component parent = awtComponent.getParent ();
	Component next_parent;

	// Heavyweight components that are children of one or more
	// lightweight containers have to be handled specially. Because
	// calls to GLightweightPeer.setBounds do nothing, GTK has no
	// knowledge of the lightweight containers' positions. So we have
	// to add the offsets manually when placing a heavyweight
	// component within a lightweight container. The lightweight
	// container may itself be in a lightweight container and so on,
	// so we need to continue adding offsets until we reach a
	// container whose position GTK knows -- that is, the first
	// non-lightweight.
	boolean lightweightChild = false;
	Insets i;
	while (parent.isLightweight ())
	{
	lightweightChild = true;

	next_parent = parent.getParent ();

	i = ((Container) parent).getInsets ();

	if (next_parent instanceof Window)
	{
	new_x += i.left;
	new_y += i.top;
	}
	else
	{
	new_x += parent.getX () + i.left;
	new_y += parent.getY () + i.top;
	}

	parent = next_parent;
	}

	// We only need to convert from Java to GTK coordinates if we're
	// placing a heavyweight component in a Window.
	if (parent instanceof Window && !lightweightChild)
	{
	GtkWindowPeer peer = (GtkWindowPeer) parent.getPeer ();
	// important: we want the window peer's insets here, not the
	// window's, since user sub-classes of Window can override
	// getInset and we only want to correct for the frame borders,
	// not for any user-defined inset values
	Insets insets = peer.getInsets ();

	int menuBarHeight = 0;
	if (peer instanceof GtkFramePeer)
	menuBarHeight = ((GtkFramePeer) peer).getMenuBarHeight ();

	new_x = x - insets.left;
	new_y = y - insets.top + menuBarHeight;
	}

	setNativeBounds (new_x, new_y, width, height);
	}

	void setCursor ()
	{
	setCursor (awtComponent.getCursor ());
	}

	public void setCursor (Cursor cursor)
	{
	if (Thread.currentThread() == GtkToolkit.mainThread)
	gtkWidgetSetCursorUnlocked (cursor.getType ());
	else
	gtkWidgetSetCursor (cursor.getType ());
	}

	public void setEnabled (boolean b)
	{
	gtkWidgetSetSensitive (b);
	}

	public void setFont (Font f)
	{
	// FIXME: This should really affect the widget tree below me.
	// Currently this is only handled if the call is made directly on
	// a text widget, which implements setFont() itself.
	gtkWidgetModifyFont(f.getName(), f.getStyle(), f.getSize());
	}

	public void setForeground (Color c)
	{
	gtkWidgetSetForeground (c.getRed(), c.getGreen(), c.getBlue());
	}

	public Color getForeground ()
	{
	int rgb[] = gtkWidgetGetForeground ();
	return new Color (rgb[0], rgb[1], rgb[2]);
	}

	public Color getBackground ()
	{
	int rgb[] = gtkWidgetGetBackground ();
	return new Color (rgb[0], rgb[1], rgb[2]);
	}

	public native void setVisibleNative (boolean b);
	public native void setVisibleNativeUnlocked (boolean b);

	public void setVisible (boolean b)
	{
	if (Thread.currentThread() == GtkToolkit.mainThread)
	setVisibleNativeUnlocked (b);
	else
	setVisibleNative (b);
	}

	public void hide ()
	{
	setVisible (false);
	}

	public void show ()
	{
	setVisible (true);
	}

	protected void postMouseEvent(int id, long when, int mods, int x, int y,
	int clickCount, boolean popupTrigger)
	{
	q().postEvent(new MouseEvent(awtComponent, id, when, mods, x, y,
	clickCount, popupTrigger));
	}

	protected void postExposeEvent (int x, int y, int width, int height)
	{
	if (!isInRepaint)
	q().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, int keyLocation)
	{
	KeyEvent keyEvent = new KeyEvent (awtComponent, id, when, mods,
	keyCode, keyChar, keyLocation);

	// Also post a KEY_TYPED event if keyEvent is a key press that
	// doesn't represent an action or modifier key.
	if (keyEvent.getID () == KeyEvent.KEY_PRESSED
	&& (!keyEvent.isActionKey ()
	&& keyCode != KeyEvent.VK_SHIFT
	&& keyCode != KeyEvent.VK_CONTROL
	&& keyCode != KeyEvent.VK_ALT))
	{
	synchronized (q)
	{
	q().postEvent (keyEvent);
	q().postEvent (new KeyEvent (awtComponent, KeyEvent.KEY_TYPED, when, mods,
	KeyEvent.VK_UNDEFINED, keyChar, keyLocation));
	}
	}
	else
	q().postEvent (keyEvent);
	}

	protected void postFocusEvent (int id, boolean temporary)
	{
	q().postEvent (new FocusEvent (awtComponent, id, temporary));
	}

	protected void postItemEvent (Object item, int stateChange)
	{
	q().postEvent (new ItemEvent ((ItemSelectable)awtComponent,
	ItemEvent.ITEM_STATE_CHANGED,
	item, stateChange));
	}

	protected void postTextEvent ()
	{
	q().postEvent (new TextEvent (awtComponent, TextEvent.TEXT_VALUE_CHANGED));
	}

	public GraphicsConfiguration getGraphicsConfiguration ()
	{
	// FIXME: just a stub for now.
	return null;
	}

	public void setEventMask (long mask)
	{
	// FIXME: just a stub for now.
	}

	public boolean isFocusable ()
	{
	return false;
	}

	public boolean requestFocus (Component source, boolean b1,
	boolean b2, long x)
	{
	return false;
	}

	public boolean isObscured ()
	{
	return false;
	}

	public boolean canDetermineObscurity ()
	{
	return false;
	}

	public void coalescePaintEvent (PaintEvent e)
	{

	}

	public void updateCursorImmediately ()
	{
	if (awtComponent.getCursor() != null)
	setCursor(awtComponent.getCursor());
	}

	public boolean handlesWheelScrolling ()
	{
	return false;
	}

	// Convenience method to create a new volatile image on the screen
	// on which this component is displayed.
	public VolatileImage createVolatileImage (int width, int height)
	{
	return new GtkVolatileImage (width, height);
	}

	// Creates buffers used in a buffering strategy.
	public void createBuffers (int numBuffers, BufferCapabilities caps)
	throws AWTException
	{
	// numBuffers == 2 implies double-buffering, meaning one back
	// buffer and one front buffer.
	if (numBuffers == 2)
	backBuffer = new GtkVolatileImage(awtComponent.getWidth(),
	awtComponent.getHeight(),
	caps.getBackBufferCapabilities());
	else
	throw new AWTException("GtkComponentPeer.createBuffers:"
	+ " multi-buffering not supported");
	this.caps = caps;
	}

	// Return the back buffer.
	public Image getBackBuffer ()
	{
	return backBuffer;
	}

	// FIXME: flip should be implemented as a fast native operation
	public void flip (BufferCapabilities.FlipContents contents)
	{
	getGraphics().drawImage(backBuffer,
	awtComponent.getWidth(),
	awtComponent.getHeight(),
	null);

	// create new back buffer and clear it to the background color.
	if (contents == BufferCapabilities.FlipContents.BACKGROUND)
	{
	backBuffer = createVolatileImage(awtComponent.getWidth(),
	awtComponent.getHeight());
	backBuffer.getGraphics().clearRect(0, 0,
	awtComponent.getWidth(),
	awtComponent.getHeight());
	}
	// FIXME: support BufferCapabilities.FlipContents.PRIOR
	}

	// Release the resources allocated to back buffers.
	public void destroyBuffers ()
	{
	backBuffer.flush();
	}

	public String toString ()
	{
	return "peer of " + awtComponent.toString();
	}
	public Rectangle getBounds()
	{
	// FIXME: implement
	return null;
	}
	public void reparent(ContainerPeer parent)
	{
	// FIXME: implement

	}
	public void setBounds(int x, int y, int width, int height, int z)
	{
	// FIXME: implement
	setBounds (x, y, width, height);

	}
	public boolean isReparentSupported()
	{
	// FIXME: implement

	return false;
	}
	public void layout()
	{
	// FIXME: implement

	}
	}