gdkmain-fb.c

linux下电话本所依赖的一些图形库

gdk_display_pointer_is_grabbed (GdkDisplay *display)
{
  return _gdk_fb_pointer_grab_window != NULL;
}

/*
 *--------------------------------------------------------------
 * gdk_keyboard_grab
 *
 *   Grabs the keyboard to a specific window
 *
 * Arguments:
 *   "window" is the window which will receive the grab
 *   "owner_events" specifies whether events will be reported as is,
 *     or relative to "window"
 *   "time" specifies the time
 *
 * Results:
 *
 * Side effects:
 *   requires a corresponding call to gdk_keyboard_ungrab
 *
 *--------------------------------------------------------------
 */

GdkGrabStatus
gdk_keyboard_grab (GdkWindow  *window,
		   gint        owner_events,
		   guint32     time)
{
  g_return_val_if_fail (window != NULL, 0);
  g_return_val_if_fail (GDK_IS_WINDOW (window), 0);

  if (_gdk_fb_pointer_grab_window)
    gdk_keyboard_ungrab (time);

  _gdk_fb_keyboard_grab_window = gdk_window_ref (window);
  _gdk_fb_keyboard_grab_owner_events = owner_events;
  
  return GDK_GRAB_SUCCESS;
}

/*
 *--------------------------------------------------------------
 * gdk_display_keyboard_ungrab
 *
 *   Releases any keyboard grab
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

void
gdk_display_keyboard_ungrab (GdkDisplay *display,
			     guint32     time)
{
  if (_gdk_fb_keyboard_grab_window)
    gdk_window_unref (_gdk_fb_keyboard_grab_window);
  _gdk_fb_keyboard_grab_window = NULL;
}

gboolean
gdk_pointer_grab_info_libgtk_only (GdkDisplay *display,
				   GdkWindow **grab_window,
				   gboolean   *owner_events)
{
  if (_gdk_fb_pointer_grab_window)
    {
      if (grab_window)
        *grab_window = (GdkWindow *)_gdk_fb_pointer_grab_window;
      if (owner_events)
        *owner_events = _gdk_fb_pointer_grab_owner_events;
      
      return TRUE;
    }
  else
    return FALSE;
}

gboolean
gdk_keyboard_grab_info_libgtk_only (GdkDisplay *display,
				    GdkWindow **grab_window,
				    gboolean   *owner_events)
{
  if (_gdk_fb_keyboard_grab_window)
    {
      if (grab_window)
        *grab_window = (GdkWindow *)_gdk_fb_keyboard_grab_window;
      if (owner_events)
        *owner_events = _gdk_fb_keyboard_grab_owner_events;

      return TRUE;
    }
  else
    return FALSE;
}


/*
 *--------------------------------------------------------------
 * gdk_screen_get_width
 *
 *   Return the width of the screen.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_get_width (GdkScreen *screen)
{
  return gdk_display->fb_width;
}

/*
 *--------------------------------------------------------------
 * gdk_screen_get_height
 *
 *   Return the height of the screen.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_get_height (GdkScreen *screen)
{
  return gdk_display->fb_height;
}

/*
 *--------------------------------------------------------------
 * gdk_screen_get_width_mm
 *
 *   Return the width of the screen in millimeters.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_get_width_mm (GdkScreen *screen)
{
  return 0.5 + gdk_screen_width () * (25.4 / 72.);
}

/*
 *--------------------------------------------------------------
 * gdk_screen_get_height_mm
 *
 *   Return the height of the screen in millimeters.
 *
 * Arguments:
 *
 * Results:
 *
 * Side effects:
 *
 *--------------------------------------------------------------
 */

gint
gdk_screen_get_height_mm (GdkScreen *screen)
{
  return 0.5 + gdk_screen_height () * (25.4 / 72.);
}

void
_gdk_windowing_display_set_sm_client_id (GdkDisplay*  display,
					 const gchar* sm_client_id)
{
}

extern void keyboard_shutdown(void);

void
_gdk_windowing_exit (void)
{
  struct sigaction action;

  /* don't get interrupted while exiting
   * (cf. gdkrender-fb.c:gdk_shadow_fb_init) */
  action.sa_handler = SIG_IGN;
  sigemptyset (&action.sa_mask);
  action.sa_flags = 0;

  gdk_fb_mouse_close ();
  /*leak  g_free (gdk_fb_mouse);*/
  
  gdk_fb_keyboard_close ();
  /*leak g_free (gdk_fb_keyboard);*/
  
  gdk_fb_display_destroy (gdk_display);
  
  gdk_display = NULL;
}

gchar *
gdk_get_display(void)
{
  gchar *s;

  s = getenv ("GDK_DISPLAY");
  if (s==0)
    s = "/dev/fb0";
  
  return g_strdup (s);
}

void
gdk_display_beep (GdkDisplay *display)
{
  static int pitch = 600, duration = 100;
  gulong arg;

  /* Thank you XFree86 */
  arg = ((1193190 / pitch) & 0xffff) |
    (((unsigned long)duration) << 16);

  ioctl (gdk_display->tty_fd, KDMKTONE, arg);
}

/* utils */
static const guint type_masks[] = {
  GDK_SUBSTRUCTURE_MASK, /* GDK_DELETE		= 0, */
  GDK_STRUCTURE_MASK, /* GDK_DESTROY		= 1, */
  GDK_EXPOSURE_MASK, /* GDK_EXPOSE		= 2, */
  GDK_POINTER_MOTION_MASK, /* GDK_MOTION_NOTIFY	= 3, */
  GDK_BUTTON_PRESS_MASK, /* GDK_BUTTON_PRESS	= 4, */
  GDK_BUTTON_PRESS_MASK, /* GDK_2BUTTON_PRESS	= 5, */
  GDK_BUTTON_PRESS_MASK, /* GDK_3BUTTON_PRESS	= 6, */
  GDK_BUTTON_RELEASE_MASK, /* GDK_BUTTON_RELEASE	= 7, */
  GDK_KEY_PRESS_MASK, /* GDK_KEY_PRESS	= 8, */
  GDK_KEY_RELEASE_MASK, /* GDK_KEY_RELEASE	= 9, */
  GDK_ENTER_NOTIFY_MASK, /* GDK_ENTER_NOTIFY	= 10, */
  GDK_LEAVE_NOTIFY_MASK, /* GDK_LEAVE_NOTIFY	= 11, */
  GDK_FOCUS_CHANGE_MASK, /* GDK_FOCUS_CHANGE	= 12, */
  GDK_STRUCTURE_MASK, /* GDK_CONFIGURE		= 13, */
  GDK_VISIBILITY_NOTIFY_MASK, /* GDK_MAP		= 14, */
  GDK_VISIBILITY_NOTIFY_MASK, /* GDK_UNMAP		= 15, */
  GDK_PROPERTY_CHANGE_MASK, /* GDK_PROPERTY_NOTIFY	= 16, */
  GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_CLEAR	= 17, */
  GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_REQUEST = 18, */
  GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_NOTIFY	= 19, */
  GDK_PROXIMITY_IN_MASK, /* GDK_PROXIMITY_IN	= 20, */
  GDK_PROXIMITY_OUT_MASK, /* GDK_PROXIMITY_OUT	= 21, */
  GDK_ALL_EVENTS_MASK, /* GDK_DRAG_ENTER        = 22, */
  GDK_ALL_EVENTS_MASK, /* GDK_DRAG_LEAVE        = 23, */
  GDK_ALL_EVENTS_MASK, /* GDK_DRAG_MOTION       = 24, */
  GDK_ALL_EVENTS_MASK, /* GDK_DRAG_STATUS       = 25, */
  GDK_ALL_EVENTS_MASK, /* GDK_DROP_START        = 26, */
  GDK_ALL_EVENTS_MASK, /* GDK_DROP_FINISHED     = 27, */
  GDK_ALL_EVENTS_MASK, /* GDK_CLIENT_EVENT	= 28, */
  GDK_VISIBILITY_NOTIFY_MASK, /* GDK_VISIBILITY_NOTIFY = 29, */
  GDK_EXPOSURE_MASK, /* GDK_NO_EXPOSE		= 30, */
  GDK_SCROLL_MASK /* GDK_SCROLL            = 31 */
};

GdkWindow *
gdk_fb_other_event_window (GdkWindow *window,
			   GdkEventType type)
{
  guint32 evmask;
  GdkWindow *w;

  w = window;
  while (w != _gdk_parent_root)
    {
      /* Huge hack, so that we don't propagate events to GtkWindow->frame */
      if ((w != window) &&
	  (GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
	  (g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
	  break;
	  
      evmask = GDK_WINDOW_OBJECT(window)->event_mask;

      if (evmask & type_masks[type])
	return w;
      
      w = gdk_window_get_parent (w);
    }
  
  return NULL;
}

GdkWindow *
gdk_fb_pointer_event_window (GdkWindow *window,
			     GdkEventType type)
{
  guint evmask;
  GdkModifierType mask;
  GdkWindow *w;
	  
  gdk_fb_mouse_get_info (NULL, NULL, &mask);
  
  if (_gdk_fb_pointer_grab_window &&
      !_gdk_fb_pointer_grab_owner_events)
    {
      evmask = _gdk_fb_pointer_grab_events;

      if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
	{
	  if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
	    evmask |= GDK_POINTER_MOTION_MASK;
	}

      if (evmask & type_masks[type])
	return _gdk_fb_pointer_grab_window;
      else
	return NULL;
    }

  w = window;
  while (w != _gdk_parent_root)
    {
      /* Huge hack, so that we don't propagate events to GtkWindow->frame */
      if ((w != window) &&
	  (GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
	  (g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
	  break;
      
      evmask = GDK_WINDOW_OBJECT(window)->event_mask;

      if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
	{
	  if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
	    evmask |= GDK_POINTER_MOTION_MASK;
	}

      if (evmask & type_masks[type])
	return w;
      
      w = gdk_window_get_parent (w);
    }

  if (_gdk_fb_pointer_grab_window &&
      _gdk_fb_pointer_grab_owner_events)
    {
      evmask = _gdk_fb_pointer_grab_events;
      
      if (evmask & (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK))
	{
	  if (((mask & GDK_BUTTON1_MASK) && (evmask & GDK_BUTTON1_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON2_MASK) && (evmask & GDK_BUTTON2_MOTION_MASK)) ||
	      ((mask & GDK_BUTTON3_MASK) && (evmask & GDK_BUTTON3_MOTION_MASK)))
	    evmask |= GDK_POINTER_MOTION_MASK;
	}
      
      if (evmask & type_masks[type])
	return _gdk_fb_pointer_grab_window;
    }
  
  return NULL;
}

GdkWindow *
gdk_fb_keyboard_event_window (GdkWindow *window,
			      GdkEventType type)
{
  guint32 evmask;
  GdkWindow *w;
  
  if (_gdk_fb_keyboard_grab_window &&
      !_gdk_fb_keyboard_grab_owner_events)
    {
      return _gdk_fb_keyboard_grab_window;
    }
  
  w = window;
  while (w != _gdk_parent_root)
    {
      /* Huge hack, so that we don't propagate events to GtkWindow->frame */
      if ((w != window) &&
	  (GDK_WINDOW_P (w)->window_type != GDK_WINDOW_CHILD) &&
	  (g_object_get_data (G_OBJECT (w), "gdk-window-child-handler")))
	  break;
	  
      evmask = GDK_WINDOW_OBJECT(window)->event_mask;

      if (evmask & type_masks[type])
	return w;
      
      w = gdk_window_get_parent (w);
    }
  
  if (_gdk_fb_keyboard_grab_window &&
      _gdk_fb_keyboard_grab_owner_events)
    {
      return _gdk_fb_keyboard_grab_window;
    }

  return NULL;
}

GdkEvent *
gdk_event_make (GdkWindow *window,
		GdkEventType type,
		gboolean append_to_queue)
{
  GdkEvent *event = gdk_event_new (type);
  guint32 the_time;
  
  the_time = gdk_fb_get_time ();
  
  event->any.window = gdk_window_ref (window);
  event->any.send_event = FALSE;
  switch (type)
    {
    case GDK_MOTION_NOTIFY:
      event->motion.time = the_time;
      event->motion.axes = NULL;
      break;
    case GDK_BUTTON_PRESS:
    case GDK_2BUTTON_PRESS:
    case GDK_3BUTTON_PRESS:
    case GDK_BUTTON_RELEASE:
      event->button.time = the_time;
      event->button.axes = NULL;
      break;
    case GDK_KEY_PRESS:
    case GDK_KEY_RELEASE:
      event->key.time = the_time;
      break;
    case GDK_ENTER_NOTIFY:
    case GDK_LEAVE_NOTIFY:
      event->crossing.time = the_time;
      break;
      
    case GDK_PROPERTY_NOTIFY:
      event->property.time = the_time;
      break;
      
    case GDK_SELECTION_CLEAR:
    case GDK_SELECTION_REQUEST:
    case GDK_SELECTION_NOTIFY:
      event->selection.time = the_time;
      break;
    case GDK_PROXIMITY_IN:
    case GDK_PROXIMITY_OUT:
      event->proximity.time = the_time;
      break;
    case GDK_DRAG_ENTER:
    case GDK_DRAG_LEAVE:
    case GDK_DRAG_MOTION:
    case GDK_DRAG_STATUS:
    case GDK_DROP_START:
    case GDK_DROP_FINISHED:
      event->dnd.time = the_time;
      break;
      
    case GDK_FOCUS_CHANGE:
    case GDK_CONFIGURE:
    case GDK_MAP:
    case GDK_UNMAP:
    case GDK_CLIENT_EVENT:
    case GDK_VISIBILITY_NOTIFY:
    case GDK_NO_EXPOSE:
    case GDK_SCROLL:
    case GDK_DELETE:
    case GDK_DESTROY:
    case GDK_EXPOSE:
    default:
      break;
    }
  
  if (append_to_queue)
    _gdk_event_queue_append (gdk_display_get_default (), event);
  
  return event;
}

void
gdk_fb_set_rotation (GdkFBAngle angle)
{
  if (angle == _gdk_fb_screen_angle)
    return;
  
#ifdef ENABLE_SHADOW_FB
  if (gdk_display)
    {
      gdk_shadow_fb_stop_updates ();

      gdk_fb_cursor_hide ();
      
      _gdk_fb_screen_angle = angle;

      if (angle % 2 == 0)
	{
	  gdk_display->fb_width = gdk_display->modeinfo.xres;
	  gdk_display->fb_height = gdk_display->modeinfo.yres;
	} 
      else
	{
	  gdk_display->fb_width = gdk_display->modeinfo.yres;
	  gdk_display->fb_height = gdk_display->modeinfo.xres;
	}
      gdk_display->fb_stride =
	gdk_display->fb_width * (gdk_display->modeinfo.bits_per_pixel / 8);
      
      gdk_fb_recompute_all();
      gdk_fb_redraw_all ();
      
      gdk_fb_cursor_unhide ();
    }
  else
    _gdk_fb_screen_angle = angle;
#else
  g_warning ("Screen rotation without shadow fb not supported.");
#endif
}

void
gdk_error_trap_push (void)
{
}

gint
gdk_error_trap_pop (void)
{
  return 0;
}

void
gdk_notify_startup_complete (void)
{
}