Makefile.am: Added rules for libgcjx library.

	* Makefile.am: Added rules for libgcjx library.
	* Makefile.in: Rebuilt.
	* configure.in: Added check for X.
	* configure: Rebuilt.
	* gnu/awt/LightweightRedirector.java: New file.
	* gnu/awt/j2d/AbstractGraphicsState.java: New file.
	* gnu/awt/j2d/DirectRasterGraphics.java: New file.
	* gnu/awt/j2d/Graphics2DImpl.java: New file.
	* gnu/awt/j2d/IntegerGraphicsState.java: New file.
	* gnu/awt/j2d/MappedRaster.java: New file.
	* gnu/awt/xlib/XCanvasPeer.java: New file.
	* gnu/awt/xlib/XEventLoop.java: New file.
	* gnu/awt/xlib/XEventQueue.java: New file.
	* gnu/awt/xlib/XFontMetrics.java: New file.
	* gnu/awt/xlib/XFramePeer.java: New file.
	* gnu/awt/xlib/XGraphics.java: New file.
	* gnu/awt/xlib/XGraphicsConfiguration.java: New file.
	* gnu/awt/xlib/XPanelPeer.java: New file.
	* gnu/awt/xlib/XToolkit.java: New file.
	* gnu/gcj/xlib/Clip.java: New file.
	* gnu/gcj/xlib/Colormap.java: New file.
	* gnu/gcj/xlib/Display.java: New file.
	* gnu/gcj/xlib/Drawable.java: New file.
	* gnu/gcj/xlib/Font.java: New file.
	* gnu/gcj/xlib/GC.java: New file.
	* gnu/gcj/xlib/Pixmap.java: New file.
	* gnu/gcj/xlib/Screen.java: New file.
	* gnu/gcj/xlib/Visual.java: New file.
	* gnu/gcj/xlib/WMSizeHints.java: New file.
	* gnu/gcj/xlib/Window.java: New file.
	* gnu/gcj/xlib/WindowAttributes.java: New file.
	* gnu/gcj/xlib/XAnyEvent.java: New file.
	* gnu/gcj/xlib/XButtonEvent.java: New file.
	* gnu/gcj/xlib/XColor.java: New file.
	* gnu/gcj/xlib/XConfigureEvent.java: New file.
	* gnu/gcj/xlib/XConnectException.java: New file.
	* gnu/gcj/xlib/XEvent.java: New file.
	* gnu/gcj/xlib/XException.java: New file.
	* gnu/gcj/xlib/XExposeEvent.java: New file.
	* gnu/gcj/xlib/XID.java: New file.
	* gnu/gcj/xlib/XImage.java: New file.
	* gnu/gcj/xlib/XUnmapEvent.java: New file.
	* gnu/gcj/xlib/natClip.cc: New file.
	* gnu/gcj/xlib/natColormap.cc: New file.
	* gnu/gcj/xlib/natDisplay.cc: New file.
	* gnu/gcj/xlib/natDrawable.cc: New file.
	* gnu/gcj/xlib/natFont.cc: New file.
	* gnu/gcj/xlib/natGC.cc: New file.
	* gnu/gcj/xlib/natPixmap.cc: New file.
	* gnu/gcj/xlib/natScreen.cc: New file.
	* gnu/gcj/xlib/natVisual.cc: New file.
	* gnu/gcj/xlib/natWMSizeHints.cc: New file.
	* gnu/gcj/xlib/natWindow.cc: New file.
	* gnu/gcj/xlib/natWindowAttributes.cc: New file.
	* gnu/gcj/xlib/natXAnyEvent.cc: New file.
	* gnu/gcj/xlib/natXButtonEvent.cc: New file.
	* gnu/gcj/xlib/natXColor.cc: New file.
	* gnu/gcj/xlib/natXConfigureEvent.cc: New file.
	* gnu/gcj/xlib/natXException.cc: New file.
	* gnu/gcj/xlib/natXExposeEvent.cc: New file.
	* gnu/gcj/xlib/natXImage.cc: New file.
	* gnu/gcj/xlib/natXUnmapEvent.cc: New file.
	* java/awt/EventDispatchThread.java: Start thead on creation.

From-SVN: r37005

1 files changed, 268 insertions, 0 deletions

diff --git a/libjava/gnu/awt/xlib/XEventLoop.java b/libjava/gnu/awt/xlib/XEventLoop.java
new file mode 100644
index 0000000..4d29320
--- /dev/null
+++ b/libjava/gnu/awt/xlib/XEventLoop.java
@@ -0,0 +1,268 @@
+package gnu.awt.xlib;
+
+/* Copyright (C) 2000  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+import java.awt.*;
+
+import gnu.awt.LightweightRedirector;
+import gnu.gcj.xlib.Display;
+import gnu.gcj.xlib.XAnyEvent;
+import gnu.gcj.xlib.XExposeEvent;
+import gnu.gcj.xlib.XButtonEvent;
+import gnu.gcj.xlib.XConfigureEvent;
+import java.awt.event.PaintEvent;
+import java.awt.event.InputEvent;
+import java.awt.event.MouseEvent;
+import java.util.Vector;
+
+public class XEventLoop implements Runnable
+{
+  Display display;
+  EventQueue queue;
+  XAnyEvent anyEvent;
+  Thread eventLoopThread;
+
+  LightweightRedirector lightweightRedirector = new LightweightRedirector();
+    
+  public XEventLoop(Display display, EventQueue queue)
+  {
+    this.display = display;
+    this.queue = queue;
+    
+    anyEvent = new XAnyEvent(display);
+    eventLoopThread = new Thread(this, "AWT thread for XEventLoop");
+    eventLoopThread.start();
+  }
+
+  public void run()
+  {
+    while (true) 
+      postNextEvent();
+  }
+
+  void postNextEvent()
+  {
+    try
+      {
+	AWTEvent evt = getNextEvent();
+	queue.postEvent(evt);
+	
+      }
+    catch (InterruptedException ie)
+      {
+	// FIXME: what now?
+	System.err.println(ie);
+      }
+  }
+    
+  /** get next event. Will block until events become available. */
+ 
+  public AWTEvent getNextEvent()
+  {
+    // ASSERT:
+    if (isIdle())
+      throw new Error("should not be idle");
+    
+    AWTEvent event = null;
+    while (event == null)
+      {
+	loadNextEvent();
+	event = createEvent();
+      }
+
+    event = lightweightRedirector.redirect(event);
+
+    return event;
+  }
+
+  void loadNextEvent()
+  {
+    try
+      {
+	setIdle(true);
+	
+	/* The code below will result in an XFlush(). However,
+	   while we are waiting for events after calling XFlush(),
+	   new X requests issued on other threads will not
+	   automatically be flushed. This can lead to a deadlock
+	   since XFlush() will not be called before after the
+	   processing of the next event, and new events arriving
+	   might be dependent on the delivery of the X
+	   requests. 
+	   
+	   Code that issues X requests should therefore call
+	   flushIfIdle() after they're done, to ensure that the
+	   requests are delivered in a timely manner.  XFlush is not
+	   run if event processing is underway, since we are assured
+	   that the event loop execution will return to this point,
+	   where requests are flushed again, before waiting for new
+	   events.
+
+	   Alternatively, do the work on the AWT thread, since the
+	   XEventQueue knows how to flush the display when it runs out
+	   of events. */
+	
+	//display.flush(); // implicit?
+	anyEvent.loadNext();
+      }
+    catch (RuntimeException re)
+      {
+	System.err.println("Exception thrown on event thread:" + re);
+      }
+    finally
+      {
+	setIdle(false);
+      }
+  }
+    
+  /**
+   * @returns an AWT event created based on the current XEvent.
+   * Returns null if the current XEvent does not map to any perticular
+   * AWT event.
+   */
+    
+  AWTEvent createEvent()
+  {
+    /* avoid attempting to get client data before client data has
+       been set. */
+    Object peer;
+    synchronized (this)
+      {
+	peer = anyEvent.getWindow().getClientData();
+      }
+	    
+    Component source = null;
+
+    // Try to identify source component
+	
+    if (peer instanceof XCanvasPeer)
+      {
+	source = ((XCanvasPeer) peer).getComponent();
+      }
+	
+    if (source == null)
+      {
+	String msg = "unable to locate source for event (" +
+	  anyEvent + ")";
+	throw new RuntimeException(msg);
+      }
+
+    /* if a mapping from anyEvent to AWTEvent is possible, construct a
+       new AWTEvent and return it. */
+	
+    int type = anyEvent.getType();
+    switch (type)
+      {
+      case XAnyEvent.TYPE_EXPOSE:
+	return createPaintEvent(source);
+      case XAnyEvent.TYPE_BUTTON_PRESS:
+      case XAnyEvent.TYPE_BUTTON_RELEASE:
+	return createMouseEvent(type, source);
+      case XAnyEvent.TYPE_UNMAP_NOTIFY:
+      case XAnyEvent.TYPE_MAP_NOTIFY:
+      case XAnyEvent.TYPE_REPARENT_NOTIFY:
+	return null; // ignore for now
+      case XAnyEvent.TYPE_CONFIGURE_NOTIFY:
+	configureNotify(peer);
+	return null;
+
+      default:
+	String msg = "Do no know how to handle event (" + anyEvent + ")";
+	throw new RuntimeException(msg);
+      }
+  }
+    
+  AWTEvent createPaintEvent(Component src)
+  {
+    XExposeEvent expose = new XExposeEvent(anyEvent);
+    PaintEvent pe = new PaintEvent(src, PaintEvent.PAINT,
+				   expose.getBounds());
+    return pe;
+  }
+    
+  AWTEvent createMouseEvent(int type, Component src)
+  {    
+    XButtonEvent buttonEvt = new XButtonEvent(anyEvent);
+    
+    int modifiers = 0; //buttonToModifierMap[buttonEvt.button];
+    
+    /* Warning: this makes assumptions on the contents of
+       X.h... Button1 = 1, Button2 = 2, etc... */
+    switch (buttonEvt.button)
+      {
+      case 1:
+	modifiers = InputEvent.BUTTON1_MASK;
+	break;
+      case 2:
+	modifiers = InputEvent.BUTTON2_MASK;
+	break;
+      case 3:
+	modifiers = InputEvent.BUTTON2_MASK;
+	break;
+      }
+    
+    int state = buttonEvt.state;
+    
+    // remap bits from state to modifiers:
+    
+    if ((state & XButtonEvent.MASK_SHIFT) != 0)
+      modifiers |= InputEvent.SHIFT_MASK;
+	
+	
+    if ((state & XButtonEvent.MASK_CONTROL) != 0)
+      modifiers |= InputEvent.CTRL_MASK;
+	
+    
+    /* FIXME: we need additional X code to properly map MODn states to
+       input modifiers */
+	
+    int clickCount = 1; // FIXME... Can't get this from X.
+    boolean popupTrigger = false; // FIXME: look up policy somewhere
+	
+    int x = buttonEvt.x;
+    int y = buttonEvt.y;
+
+    int id = (type == XAnyEvent.TYPE_BUTTON_PRESS) ?
+      MouseEvent.MOUSE_PRESSED :
+      MouseEvent.MOUSE_RELEASED;
+	
+    MouseEvent me = new MouseEvent(src,
+				   id,
+				   buttonEvt.time, modifiers,
+				   buttonEvt.x, buttonEvt.y,
+				   clickCount, popupTrigger);
+    return me;
+  }
+
+  void configureNotify(Object peerObj)
+  {
+    XConfigureEvent configEvent = new XConfigureEvent(anyEvent);
+    XFramePeer peer = (XFramePeer)  peerObj;
+    
+    peer.configureNotify(configEvent);
+  }
+    
+  public void flushIfIdle()
+  {
+    if (isIdle())
+      display.flush();
+  }
+  
+  volatile boolean idle = false;
+
+  final synchronized void setIdle(boolean idle)
+  {
+    this.idle = idle;
+  }
+
+  final synchronized boolean isIdle()
+  {
+    return idle;
+  }
+}