gdkinput-win32.c

linux下电话本所依赖的一些图形库

			g_print ("...wants ordinary event, ignoring this\n"));
	      return FALSE;
	    }
	  
	  pt.x = x;
	  pt.y = y;
	  ClientToScreen (GDK_WINDOW_HWND (window), &pt);
	  g_object_unref (window);
	  window = (GdkWindow *) obj->parent;
	  obj = GDK_WINDOW_OBJECT (window);
	  g_object_ref (window);
	  ScreenToClient (GDK_WINDOW_HWND (window), &pt);
	  x = pt.x;
	  y = pt.y;
	  GDK_NOTE (EVENTS_OR_INPUT, g_print ("...propagating to %p (%d,%d)\n",
					      GDK_WINDOW_HWND (window), x, y));
	  goto dijkstra;
	}

      input_window = _gdk_input_window_find (window);

      g_assert (input_window != NULL);

      if (gdkdev->info.mode == GDK_MODE_WINDOW
	  && input_window->mode == GDK_EXTENSION_EVENTS_CURSOR)
	return FALSE;

      event->any.window = window;
      key_state = get_modifier_key_state ();
      if (event->any.type == GDK_BUTTON_PRESS
	  || event->any.type == GDK_BUTTON_RELEASE)
	{
	  event->button.time = _gdk_win32_get_next_tick (msg->time);
	  event->button.device = &gdkdev->info;
	  
	  event->button.axes = g_new(gdouble, gdkdev->info.num_axes);

	  gdk_input_translate_coordinates (gdkdev, input_window,
					   gdkdev->last_axis_data,
					   event->button.axes,
					   &event->button.x, 
					   &event->button.y);

	  /* Also calculate root coordinates. Note that input_window->root_x
	     is in GDK root coordinates. */
	  event->button.x_root = event->button.x + input_window->root_x;
	  event->button.y_root = event->button.y + input_window->root_y;

	  event->button.state = ((gdkdev->button_state << 8)
				 & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
				    | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
				    | GDK_BUTTON5_MASK))
				| key_state;
	  GDK_NOTE (EVENTS_OR_INPUT,
		    g_print ("WINTAB button %s:%d %g,%g\n",
			     (event->button.type == GDK_BUTTON_PRESS ?
			      "press" : "release"),
			     event->button.button,
			     event->button.x, event->button.y));
	}
      else
	{
	  event->motion.time = _gdk_win32_get_next_tick (msg->time);
	  event->motion.is_hint = FALSE;
	  event->motion.device = &gdkdev->info;

	  event->motion.axes = g_new(gdouble, gdkdev->info.num_axes);

	  gdk_input_translate_coordinates (gdkdev, input_window,
					   gdkdev->last_axis_data,
					   event->motion.axes,
					   &event->motion.x, 
					   &event->motion.y);

	  /* Also calculate root coordinates. Note that input_window->root_x
	     is in GDK root coordinates. */
	  event->motion.x_root = event->motion.x + input_window->root_x;
	  event->motion.y_root = event->motion.y + input_window->root_y;

	  event->motion.state = ((gdkdev->button_state << 8)
				 & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
				    | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
				    | GDK_BUTTON5_MASK))
				| key_state;

	  GDK_NOTE (EVENTS_OR_INPUT,
		    g_print ("WINTAB motion: %g,%g\n",
			     event->motion.x, event->motion.y));

	  /* Check for missing release or press events for the normal
	   * pressure button. At least on my ArtPadII I sometimes miss a
	   * release event?
	   */
	  if ((gdkdev->pktdata & PK_NORMAL_PRESSURE
	       && (event->motion.state & GDK_BUTTON1_MASK)
	       && packet.pkNormalPressure <= MAX (0, (gint) gdkdev->npbtnmarks[0] - 2))
	      || (gdkdev->pktdata & PK_NORMAL_PRESSURE
		  && !(event->motion.state & GDK_BUTTON1_MASK)
		  && packet.pkNormalPressure > gdkdev->npbtnmarks[1] + 2))
	    {
	      GdkEvent *event2 = gdk_event_copy (event);
	      if (event->motion.state & GDK_BUTTON1_MASK)
		{
		  event2->button.type = GDK_BUTTON_RELEASE;
		  gdkdev->button_state &= ~1;
		}
	      else
		{
		  event2->button.type = GDK_BUTTON_PRESS;
		  gdkdev->button_state |= 1;
		}
	      event2->button.state = ((gdkdev->button_state << 8)
				      & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
					 | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
					 | GDK_BUTTON5_MASK))
				     | key_state;
	      event2->button.button = 1;
	      GDK_NOTE (EVENTS_OR_INPUT,
			g_print ("WINTAB synthesized button %s: %d %g,%gg\n",
				 (event2->button.type == GDK_BUTTON_PRESS ?
				  "press" : "release"),
				 event2->button.button,
				 event2->button.x,
				 event2->button.y));
	      _gdk_event_queue_append (display, event2);
	    }
	}
      return TRUE;

    case WT_PROXIMITY:
      if (LOWORD (msg->lParam) == 0)
	{
	  event->proximity.type = GDK_PROXIMITY_OUT;
	  set_ignore_core (FALSE);
	}
      else
	{
	  event->proximity.type = GDK_PROXIMITY_IN;
	  set_ignore_core (TRUE);
	}
      event->proximity.time = _gdk_win32_get_next_tick (msg->time);
      event->proximity.device = &gdkdev->info;

      GDK_NOTE (EVENTS_OR_INPUT,
		g_print ("WINTAB proximity %s\n",
			 (event->proximity.type == GDK_PROXIMITY_IN ?
			  "in" : "out")));
      return TRUE;
    }
#endif
  return FALSE;
}

gboolean
_gdk_input_enable_window (GdkWindow        *window,
			  GdkDevicePrivate *gdkdev)
{
#ifdef HAVE_SOME_XINPUT
  GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);

  impl->extension_events_selected = TRUE;
#endif

  return TRUE;
}

gboolean
_gdk_input_disable_window (GdkWindow        *window,
			   GdkDevicePrivate *gdkdev)
{
#ifdef HAVE_SOME_XINPUT
  GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (GDK_WINDOW_OBJECT (window)->impl);

  impl->extension_events_selected = FALSE;
#endif

  return TRUE;
}

gint
_gdk_input_grab_pointer (GdkWindow    *window,
			 gint          owner_events,
			 GdkEventMask  event_mask,
			 GdkWindow    *confine_to,
			 guint32       time)
{
#ifdef HAVE_SOME_XINPUT
  GdkInputWindow *input_window, *new_window;
  gboolean need_ungrab;
  GdkDevicePrivate *gdkdev;
  GList *tmp_list;

  tmp_list = _gdk_input_windows;
  new_window = NULL;
  need_ungrab = FALSE;

  GDK_NOTE (INPUT, g_print ("gdk_input_win32_grab_pointer: %p %d %p\n",
			   GDK_WINDOW_HWND (window),
			   owner_events,
			   (confine_to ? GDK_WINDOW_HWND (confine_to) : 0)));

  while (tmp_list)
    {
      input_window = (GdkInputWindow *)tmp_list->data;

      if (input_window->window == window)
	new_window = input_window;
      else if (input_window->grabbed)
	{
	  input_window->grabbed = FALSE;
	  need_ungrab = TRUE;
	}

      tmp_list = tmp_list->next;
    }

  if (new_window)
    {
      new_window->grabbed = TRUE;
      x_grab_window = window;
      x_grab_mask = event_mask;
      x_grab_owner_events = owner_events;

      /* FIXME: Do we need to handle confine_to and time? */
      
      tmp_list = _gdk_input_devices;
      while (tmp_list)
	{
	  gdkdev = (GdkDevicePrivate *)tmp_list->data;
	  if (!GDK_IS_CORE (gdkdev) && gdkdev->hctx)
	    {
#if 0	      
	      /* XXX */
	      gdk_input_common_find_events (window, gdkdev,
					    event_mask,
					    event_classes, &num_classes);
	      
	      result = XGrabDevice( GDK_DISPLAY(), gdkdev->xdevice,
				    GDK_WINDOW_XWINDOW (window),
				    owner_events, num_classes, event_classes,
				    GrabModeAsync, GrabModeAsync, time);
	      
	      /* FIXME: if failure occurs on something other than the first
		 device, things will be badly inconsistent */
	      if (result != Success)
		return result;
#endif
	    }
	  tmp_list = tmp_list->next;
	}
    }
  else
    { 
      x_grab_window = NULL;
      tmp_list = _gdk_input_devices;
      while (tmp_list)
	{
	  gdkdev = (GdkDevicePrivate *)tmp_list->data;
	  if (!GDK_IS_CORE (gdkdev) && gdkdev->hctx &&
	      ((gdkdev->button_state != 0) || need_ungrab))
	    {
#if 0
	      /* XXX */
	      XUngrabDevice (gdk_display, gdkdev->xdevice, time);
#endif
	      gdkdev->button_state = 0;
	    }
	  
	  tmp_list = tmp_list->next;
	}
    }
#endif

  return GDK_GRAB_SUCCESS;
}

void 
_gdk_input_ungrab_pointer (guint32 time)
{
#ifdef HAVE_SOME_XINPUT
  GdkInputWindow *input_window;
  GdkDevicePrivate *gdkdev;
  GList *tmp_list;

  GDK_NOTE (INPUT, g_print ("gdk_input_win32_ungrab_pointer\n"));

  tmp_list = _gdk_input_windows;
  while (tmp_list)
    {
      input_window = (GdkInputWindow *)tmp_list->data;
      if (input_window->grabbed)
	break;
      tmp_list = tmp_list->next;
    }

  if (tmp_list)			/* we found a grabbed window */
    {
      input_window->grabbed = FALSE;

      tmp_list = _gdk_input_devices;
      while (tmp_list)
	{
	  gdkdev = (GdkDevicePrivate *)tmp_list->data;
#if 0
	  /* XXX */
	  if (!GDK_IS_CORE (gdkdev) && gdkdev->xdevice)
	    XUngrabDevice (gdk_display, gdkdev->xdevice, time);
#endif
	  tmp_list = tmp_list->next;
	}
    }
  x_grab_window = NULL;
#endif
}

gboolean
_gdk_device_get_history (GdkDevice         *device,
			 GdkWindow         *window,
			 guint32            start,
			 guint32            stop,
			 GdkTimeCoord    ***events,
			 gint              *n_events)
{
  return FALSE;
}

void 
gdk_device_get_state (GdkDevice       *device,
		      GdkWindow       *window,
		      gdouble         *axes,
		      GdkModifierType *mask)
{
  g_return_if_fail (device != NULL);
  g_return_if_fail (GDK_IS_WINDOW (window));

  if (GDK_IS_CORE (device))
    {
      gint x_int, y_int;
      
      gdk_window_get_pointer (window, &x_int, &y_int, mask);

      if (axes)
	{
	  axes[0] = x_int;
	  axes[1] = y_int;
	}
    }
  else
    {
      GdkDevicePrivate *gdkdev;
      GdkInputWindow *input_window;
      
      gdkdev = (GdkDevicePrivate *)device;
      /* For now just use the last known button and axis state of the device.
       * Since graphical tablets send an insane amount of motion events each
       * second, the info should be fairly up to date */
      if (mask)
	{
	  gdk_window_get_pointer (window, NULL, NULL, mask);
	  *mask &= 0xFF; /* Mask away core pointer buttons */
	  *mask |= ((gdkdev->button_state << 8)
		    & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
		       | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
		       | GDK_BUTTON5_MASK));
	}
      input_window = _gdk_input_window_find (window);
      g_return_if_fail (input_window != NULL);
      /* For some reason, input_window is sometimes NULL when I use The GIMP 2
       * (bug #141543?). Avoid crashing if debugging is disabled. */
      if (axes && gdkdev->last_axis_data && input_window)
	gdk_input_translate_coordinates (gdkdev, input_window,
					 gdkdev->last_axis_data,
					 axes, NULL, NULL);
    }
}

#ifdef HAVE_WINTAB
void
_gdk_input_set_tablet_active (void)
{
  GList *tmp_list;
  HCTX *hctx;

  /* Bring the contexts to the top of the overlap order when one of the
   * application's windows is activated */
  
  if (!wintab_contexts)
    return; /* No tablet devices found, or Wintab not initialized yet */
  
  GDK_NOTE (INPUT, g_print ("_gdk_input_set_tablet_active: "
	"Bringing Wintab contexts to the top of the overlap order\n"));

  tmp_list = wintab_contexts;
  while (tmp_list)
    {
      hctx = (HCTX *) (tmp_list->data);
      WTOverlap (*hctx, TRUE);
      tmp_list = tmp_list->next;
    }
}
#endif /* HAVE_WINTAB */

void 
_gdk_input_init (GdkDisplay *display)
{
  _gdk_input_ignore_core = FALSE;
  _gdk_input_devices = NULL;

  _gdk_init_input_core (display);
#ifdef HAVE_WINTAB
#ifdef WINTAB_NO_LAZY_INIT
  /* Normally, Wintab is only initialized when the application performs
   * an action that requires it, such as enabling extended input events
   * for a window or enumerating the devices.
   */
  _gdk_input_wintab_init_check ();
#endif /* WINTAB_NO_LAZY_INIT */
#endif /* HAVE_WINTAB */

  _gdk_input_devices = g_list_append (_gdk_input_devices, display->core_pointer);
}