gdkevents-x11.c

linux下电话本所依赖的一些图形库

	  gboolean had_focus = HAS_FOCUS (toplevel);
	  
	  switch (xevent->xfocus.detail)
	    {
	    case NotifyAncestor:
	    case NotifyVirtual:
	      /* When the focus moves from an ancestor of the window to
	       * the window or a descendent of the window, *and* the
	       * pointer is inside the window, then we were previously
	       * receiving keystroke events in the has_pointer_focus
	       * case and are now receiving them in the
	       * has_focus_window case.
	       */
	      if (toplevel->has_pointer &&
		  xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_pointer_focus = FALSE;
	      
	      /* fall through */
	    case NotifyNonlinear:
	    case NotifyNonlinearVirtual:
	      if (xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_focus_window = TRUE;
	      /* We pretend that the focus moves to the grab
	       * window, so we pay attention to NotifyGrab
	       * NotifyUngrab, and ignore NotifyWhileGrabbed
	       */
	      if (xevent->xfocus.mode != NotifyWhileGrabbed)
		toplevel->has_focus = TRUE;
	      break;
	    case NotifyPointer:
	      /* The X server sends NotifyPointer/NotifyGrab,
	       * but the pointer focus is ignored while a
	       * grab is in effect
	       */
	      if (xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_pointer_focus = TRUE;
	      break;
	    case NotifyInferior:
	    case NotifyPointerRoot:
	    case NotifyDetailNone:
	      break;
	    }

	  if (HAS_FOCUS (toplevel) != had_focus)
	    generate_focus_event (window, TRUE);
	}
      break;
    case FocusOut:
      GDK_NOTE (EVENTS,
		g_message ("focus out:\t\twindow: %ld, detail: %s, mode: %s",
			   xevent->xfocus.window,
			   notify_details[xevent->xfocus.detail],
			   notify_modes[xevent->xfocus.mode]));
      
      if (toplevel)
	{
	  gboolean had_focus = HAS_FOCUS (toplevel);
	    
	  switch (xevent->xfocus.detail)
	    {
	    case NotifyAncestor:
	    case NotifyVirtual:
	      /* When the focus moves from the window or a descendent
	       * of the window to an ancestor of the window, *and* the
	       * pointer is inside the window, then we were previously
	       * receiving keystroke events in the has_focus_window
	       * case and are now receiving them in the
	       * has_pointer_focus case.
	       */
	      if (toplevel->has_pointer &&
		  xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_pointer_focus = TRUE;

	      /* fall through */
	    case NotifyNonlinear:
	    case NotifyNonlinearVirtual:
	      if (xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_focus_window = FALSE;
	      if (xevent->xfocus.mode != NotifyWhileGrabbed)
		toplevel->has_focus = FALSE;
	      break;
	    case NotifyPointer:
	      if (xevent->xfocus.mode != NotifyGrab &&
		  xevent->xfocus.mode != NotifyUngrab)
		toplevel->has_pointer_focus = FALSE;
	    break;
	    case NotifyInferior:
	    case NotifyPointerRoot:
	    case NotifyDetailNone:
	      break;
	    }

	  if (HAS_FOCUS (toplevel) != had_focus)
	    generate_focus_event (window, FALSE);
	}
      break;

#if 0      
 	  /* gdk_keyboard_grab() causes following events. These events confuse
 	   * the XIM focus, so ignore them.
 	   */
 	  if (xevent->xfocus.mode == NotifyGrab ||
 	      xevent->xfocus.mode == NotifyUngrab)
 	    break;
#endif

    case KeymapNotify:
      GDK_NOTE (EVENTS,
		g_message ("keymap notify"));

      /* Not currently handled */
      return_val = FALSE;
      break;
      
    case Expose:
      GDK_NOTE (EVENTS,
		g_message ("expose:\t\twindow: %ld  %d	x,y: %d %d  w,h: %d %d%s",
			   xevent->xexpose.window, xevent->xexpose.count,
			   xevent->xexpose.x, xevent->xexpose.y,
			   xevent->xexpose.width, xevent->xexpose.height,
			   event->any.send_event ? " (send)" : ""));
      
      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      
      {
	GdkRectangle expose_rect;

	expose_rect.x = xevent->xexpose.x + xoffset;
	expose_rect.y = xevent->xexpose.y + yoffset;
	expose_rect.width = xevent->xexpose.width;
	expose_rect.height = xevent->xexpose.height;

	if (return_exposes)
	  {
	    event->expose.type = GDK_EXPOSE;
	    event->expose.area = expose_rect;
	    event->expose.region = gdk_region_rectangle (&expose_rect);
	    event->expose.window = window;
	    event->expose.count = xevent->xexpose.count;

	    return_val = TRUE;
	  }
	else
	  {
	    _gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
	    return_val = FALSE;
	  }
	
	return_val = FALSE;
      }
	
      break;
      
    case GraphicsExpose:
      {
	GdkRectangle expose_rect;

        GDK_NOTE (EVENTS,
		  g_message ("graphics expose:\tdrawable: %ld",
			     xevent->xgraphicsexpose.drawable));
 
        if (window_private == NULL)
          {
            return_val = FALSE;
            break;
          }
        
	expose_rect.x = xevent->xgraphicsexpose.x + xoffset;
	expose_rect.y = xevent->xgraphicsexpose.y + yoffset;
	expose_rect.width = xevent->xgraphicsexpose.width;
	expose_rect.height = xevent->xgraphicsexpose.height;
	    
	if (return_exposes)
	  {
	    event->expose.type = GDK_EXPOSE;
	    event->expose.area = expose_rect;
	    event->expose.region = gdk_region_rectangle (&expose_rect);
	    event->expose.window = window;
	    event->expose.count = xevent->xgraphicsexpose.count;

	    return_val = TRUE;
	  }
	else
	  {
	    _gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
	    
	    return_val = FALSE;
	  }
	
      }
      break;
      
    case NoExpose:
      GDK_NOTE (EVENTS,
		g_message ("no expose:\t\tdrawable: %ld",
			   xevent->xnoexpose.drawable));
      
      event->no_expose.type = GDK_NO_EXPOSE;
      event->no_expose.window = window;
      
      break;
      
    case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
      if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
	switch (xevent->xvisibility.state)
	  {
	  case VisibilityFullyObscured:
	    g_message ("visibility notify:\twindow: %ld	 none",
		       xevent->xvisibility.window);
	    break;
	  case VisibilityPartiallyObscured:
	    g_message ("visibility notify:\twindow: %ld	 partial",
		       xevent->xvisibility.window);
	    break;
	  case VisibilityUnobscured:
	    g_message ("visibility notify:\twindow: %ld	 full",
		       xevent->xvisibility.window);
	    break;
	  }
#endif /* G_ENABLE_DEBUG */
      
      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      
      event->visibility.type = GDK_VISIBILITY_NOTIFY;
      event->visibility.window = window;
      
      switch (xevent->xvisibility.state)
	{
	case VisibilityFullyObscured:
	  event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
	  break;
	  
	case VisibilityPartiallyObscured:
	  event->visibility.state = GDK_VISIBILITY_PARTIAL;
	  break;
	  
	case VisibilityUnobscured:
	  event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
	  break;
	}
      
      break;
      
    case CreateNotify:
      GDK_NOTE (EVENTS,
		g_message ("create notify:\twindow: %ld  x,y: %d %d	w,h: %d %d  b-w: %d  parent: %ld	 ovr: %d",
			   xevent->xcreatewindow.window,
			   xevent->xcreatewindow.x,
			   xevent->xcreatewindow.y,
			   xevent->xcreatewindow.width,
			   xevent->xcreatewindow.height,
			   xevent->xcreatewindow.border_width,
			   xevent->xcreatewindow.parent,
			   xevent->xcreatewindow.override_redirect));
      /* not really handled */
      break;
      
    case DestroyNotify:
      GDK_NOTE (EVENTS,
		g_message ("destroy notify:\twindow: %ld",
			   xevent->xdestroywindow.window));

      /* Ignore DestroyNotify from SubstructureNotifyMask */
      if (xevent->xdestroywindow.window == xevent->xdestroywindow.event)
	{
	  event->any.type = GDK_DESTROY;
	  event->any.window = window;
	  
	  return_val = window_private && !GDK_WINDOW_DESTROYED (window);
	  
	  if (window && GDK_WINDOW_XID (window) != screen_x11->xroot_window)
	    gdk_window_destroy_notify (window);
	}
      else
	return_val = FALSE;
      
      break;
      
    case UnmapNotify:
      GDK_NOTE (EVENTS,
		g_message ("unmap notify:\t\twindow: %ld",
			   xevent->xmap.window));
      
      event->any.type = GDK_UNMAP;
      event->any.window = window;      

      /* If we are shown (not withdrawn) and get an unmap, it means we
       * were iconified in the X sense. If we are withdrawn, and get
       * an unmap, it means we hid the window ourselves, so we
       * will have already flipped the iconified bit off.
       */
      if (window)
	{
	  if (GDK_WINDOW_IS_MAPPED (window))
	    gdk_synthesize_window_state (window,
					 0,
					 GDK_WINDOW_STATE_ICONIFIED);

	  _gdk_xgrab_check_unmap (window, xevent->xany.serial);
	}
      
      break;
      
    case MapNotify:
      GDK_NOTE (EVENTS,
		g_message ("map notify:\t\twindow: %ld",
			   xevent->xmap.window));
      
      event->any.type = GDK_MAP;
      event->any.window = window;

      /* Unset iconified if it was set */
      if (window && (((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_ICONIFIED))
        gdk_synthesize_window_state (window,
                                     GDK_WINDOW_STATE_ICONIFIED,
                                     0);
      
      break;
      
    case ReparentNotify:
      GDK_NOTE (EVENTS,
		g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld	ovr: %d",
			   xevent->xreparent.window,
			   xevent->xreparent.x,
			   xevent->xreparent.y,
			   xevent->xreparent.parent,
			   xevent->xreparent.override_redirect));

      /* Not currently handled */
      return_val = FALSE;
      break;
      
    case ConfigureNotify:
      GDK_NOTE (EVENTS,
		g_message ("configure notify:\twindow: %ld  x,y: %d %d	w,h: %d %d  b-w: %d  above: %ld	 ovr: %d%s",
			   xevent->xconfigure.window,
			   xevent->xconfigure.x,
			   xevent->xconfigure.y,
			   xevent->xconfigure.width,
			   xevent->xconfigure.height,
			   xevent->xconfigure.border_width,
			   xevent->xconfigure.above,
			   xevent->xconfigure.override_redirect,
			   !window
			   ? " (discarding)"
			   : GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD
			   ? " (discarding child)"
			   : xevent->xconfigure.event != xevent->xconfigure.window
			   ? " (discarding substructure)"
			   : ""));
      if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
	_gdk_x11_screen_size_changed (screen, xevent);

      if (window &&
	  xevent->xconfigure.event == xevent->xconfigure.window &&
	  !GDK_WINDOW_DESTROYED (window) &&
	  (window_private->extension_events != 0))
	_gdk_input_configure_event (&xevent->xconfigure, window);
      
#ifdef HAVE_XSYNC
      if (toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value))
	{
	  toplevel->current_counter_value = toplevel->pending_counter_value;
	  XSyncIntToValue (&toplevel->pending_counter_value, 0);
	}
#endif

    if (!window ||
	  xevent->xconfigure.event != xevent->xconfigure.window ||
          GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
          GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
	return_val = FALSE;
      else
	{
	  event->configure.type = GDK_CONFIGURE;
	  event->configure.window = window;
	  event->configure.width = xevent->xconfigure.width;
	  event->configure.height = xevent->xconfigure.height;
	  
	  if (!xevent->xconfigure.send_event &&
	      !xevent->xconfigure.override_redirect &&
	      !GDK_WINDOW_DESTROYED (window))
	    {
	      gint tx = 0;
	      gint ty = 0;
	      Window child_window = 0;

	      gdk_error_trap_push ();
	      if (XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (window),
					 GDK_DRAWABLE_XID (window),
					 screen_x11->xroot_window,
					 0, 0,
					 &tx, &ty,
					 &child_window))
		{
		  event->configure.x = tx;
		  event->configure.y = ty;
		}
	      gdk_error_trap_pop ();
	    }
	  else
	    {
	      event->configure.x = xevent->xconfigure.x;
	      event->configure.y = xevent->xconfigure.y;
	    }
	  window_private->x = event->configure.x;
	  window_private->y = event->configure.y;
	  window_impl->width = xevent->xconfigure.width;
	  window_impl->height = xevent->xconfigure.height;
	  if (window_private->resize_count >= 1)
	    {
	      window_private->resize_count -= 1;

	      if (window_private->resize_count == 0)
		_gdk_moveresize_configure_done (display, window);
	    }
	}
      break;
      
    case PropertyNotify:
      GDK_NOTE (EVENTS,
		g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
			   xevent->xproperty.window,
			   xevent->xproperty.atom,
			   "\"",
			   gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
			   "\""));

      if (window_private == NULL)
        {
	  return_val = FALSE;
          break;
        }

      /* We compare with the serial of the last time we mapped the
       * window to avoid refetching properties that we set ourselves
       */
      if (toplevel &&
	  xevent->xproperty.serial >= toplevel->map_serial)
	{
	  if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
	    gdk_check_wm_state_changed (window);
	  
	  if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
	    gdk_check_wm_desktop_changed (window);
	}
      
      if (window_private->event_mask & GDK_PROPERTY_CHANGE_MASK) 
	{
	  event->property.type = GDK_PROPERTY_NOTIFY;
	  event->property.window = window;
	  event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
	  event->property.time = xevent->xproperty.time;
	  event->property.state = xevent->xproperty.state;
	}