gtkwidget.c

gtk是linux一款强大的夸平台的图形化开发工具

		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[ENTER_NOTIFY_EVENT] =
    gtk_signal_new ("enter_notify_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, enter_notify_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[LEAVE_NOTIFY_EVENT] =
    gtk_signal_new ("leave_notify_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, leave_notify_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[CONFIGURE_EVENT] =
    gtk_signal_new ("configure_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, configure_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[FOCUS_IN_EVENT] =
    gtk_signal_new ("focus_in_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_in_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[FOCUS_OUT_EVENT] =
    gtk_signal_new ("focus_out_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_out_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[MAP_EVENT] =
    gtk_signal_new ("map_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, map_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[UNMAP_EVENT] =
    gtk_signal_new ("unmap_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, unmap_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[PROPERTY_NOTIFY_EVENT] =
    gtk_signal_new ("property_notify_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, property_notify_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[SELECTION_CLEAR_EVENT] =
    gtk_signal_new ("selection_clear_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_clear_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[SELECTION_REQUEST_EVENT] =
    gtk_signal_new ("selection_request_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_request_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[SELECTION_NOTIFY_EVENT] =
    gtk_signal_new ("selection_notify_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_notify_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[SELECTION_RECEIVED] =
    gtk_signal_new ("selection_received",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_received),
		    gtk_marshal_NONE__POINTER_UINT,
		    GTK_TYPE_NONE, 2,
		    GTK_TYPE_SELECTION_DATA,
		    GTK_TYPE_UINT);
  widget_signals[SELECTION_GET] =
    gtk_signal_new ("selection_get",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_get),
		    gtk_marshal_NONE__POINTER_UINT_UINT,
		    GTK_TYPE_NONE, 3,
		    GTK_TYPE_SELECTION_DATA,
		    GTK_TYPE_UINT,
		    GTK_TYPE_UINT);
  widget_signals[PROXIMITY_IN_EVENT] =
    gtk_signal_new ("proximity_in_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_in_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[PROXIMITY_OUT_EVENT] =
    gtk_signal_new ("proximity_out_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_out_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[DRAG_LEAVE] =
    gtk_signal_new ("drag_leave",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_leave),
		    gtk_marshal_NONE__POINTER_UINT,
		    GTK_TYPE_NONE, 2,
		    GTK_TYPE_GDK_DRAG_CONTEXT,
		    GTK_TYPE_UINT);
  widget_signals[DRAG_BEGIN] =
    gtk_signal_new ("drag_begin",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_begin),
		    gtk_marshal_NONE__POINTER,
		    GTK_TYPE_NONE, 1,
		    GTK_TYPE_GDK_DRAG_CONTEXT);
  widget_signals[DRAG_END] =
    gtk_signal_new ("drag_end",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_end),
		    gtk_marshal_NONE__POINTER,
		    GTK_TYPE_NONE, 1,
		    GTK_TYPE_GDK_DRAG_CONTEXT);
  widget_signals[DRAG_DATA_DELETE] =
    gtk_signal_new ("drag_data_delete",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_data_delete),
		    gtk_marshal_NONE__POINTER,
		    GTK_TYPE_NONE, 1,
		    GTK_TYPE_GDK_DRAG_CONTEXT);
  widget_signals[DRAG_MOTION] =
    gtk_signal_new ("drag_motion",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_motion),
		    gtk_marshal_BOOL__POINTER_INT_INT_UINT,
		    GTK_TYPE_BOOL, 4,
		    GTK_TYPE_GDK_DRAG_CONTEXT,
		    GTK_TYPE_INT,
		    GTK_TYPE_INT,
		    GTK_TYPE_UINT);
  widget_signals[DRAG_DROP] =
    gtk_signal_new ("drag_drop",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_drop),
		    gtk_marshal_BOOL__POINTER_INT_INT_UINT,
		    GTK_TYPE_BOOL, 4,
		    GTK_TYPE_GDK_DRAG_CONTEXT,
		    GTK_TYPE_INT,
		    GTK_TYPE_INT,
		    GTK_TYPE_UINT);
  widget_signals[DRAG_DATA_GET] =
    gtk_signal_new ("drag_data_get",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_data_get),
		    gtk_marshal_NONE__POINTER_POINTER_UINT_UINT,
		    GTK_TYPE_NONE, 4,
		    GTK_TYPE_GDK_DRAG_CONTEXT,
		    GTK_TYPE_SELECTION_DATA,
		    GTK_TYPE_UINT,
		    GTK_TYPE_UINT);
  widget_signals[DRAG_DATA_RECEIVED] =
    gtk_signal_new ("drag_data_received",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_data_received),
		    gtk_marshal_NONE__POINTER_INT_INT_POINTER_UINT_UINT,
		    GTK_TYPE_NONE, 6,
		    GTK_TYPE_GDK_DRAG_CONTEXT,
		    GTK_TYPE_INT,
		    GTK_TYPE_INT,
		    GTK_TYPE_SELECTION_DATA,
		    GTK_TYPE_UINT,
		    GTK_TYPE_UINT);
  widget_signals[VISIBILITY_NOTIFY_EVENT] =
    gtk_signal_new ("visibility_notify_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, visibility_notify_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[CLIENT_EVENT] =
    gtk_signal_new ("client_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, client_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[NO_EXPOSE_EVENT] =
    gtk_signal_new ("no_expose_event",
		    GTK_RUN_LAST,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, no_expose_event),
		    gtk_marshal_BOOL__POINTER,
		    GTK_TYPE_BOOL, 1,
		    GTK_TYPE_GDK_EVENT);
  widget_signals[DEBUG_MSG] =
    gtk_signal_new ("debug_msg",
		    GTK_RUN_LAST | GTK_RUN_ACTION,
		    object_class->type,
		    GTK_SIGNAL_OFFSET (GtkWidgetClass, debug_msg),
		    gtk_marshal_NONE__STRING,
		    GTK_TYPE_NONE, 1,
		    GTK_TYPE_STRING);

  gtk_object_class_add_signals (object_class, widget_signals, LAST_SIGNAL);

  object_class->set_arg = gtk_widget_set_arg;
  object_class->get_arg = gtk_widget_get_arg;
  object_class->shutdown = gtk_widget_shutdown;
  object_class->destroy = gtk_widget_real_destroy;
  object_class->finalize = gtk_widget_finalize;
  
  klass->activate_signal = 0;
  klass->set_scroll_adjustments_signal = 0;
  klass->show = gtk_widget_real_show;
  klass->show_all = gtk_widget_show;
  klass->hide = gtk_widget_real_hide;
  klass->hide_all = gtk_widget_hide;
  klass->map = gtk_widget_real_map;
  klass->unmap = gtk_widget_real_unmap;
  klass->realize = gtk_widget_real_realize;
  klass->unrealize = gtk_widget_real_unrealize;
  klass->draw = gtk_widget_real_draw;
  klass->draw_focus = NULL;
  klass->size_request = gtk_widget_real_size_request;
  klass->size_allocate = gtk_widget_real_size_allocate;
  klass->state_changed = NULL;
  klass->parent_set = NULL;
  klass->style_set = gtk_widget_style_set;
  klass->add_accelerator = (void*) gtk_accel_group_handle_add;
  klass->remove_accelerator = (void*) gtk_accel_group_handle_remove;
  klass->grab_focus = gtk_widget_real_grab_focus;
  klass->event = NULL;
  klass->button_press_event = NULL;
  klass->button_release_event = NULL;
  klass->motion_notify_event = NULL;
  klass->delete_event = NULL;
  klass->destroy_event = NULL;
  klass->expose_event = NULL;
  klass->key_press_event = gtk_widget_real_key_press_event;
  klass->key_release_event = gtk_widget_real_key_release_event;
  klass->enter_notify_event = NULL;
  klass->leave_notify_event = NULL;
  klass->configure_event = NULL;
  klass->focus_in_event = NULL;
  klass->focus_out_event = NULL;
  klass->map_event = NULL;
  klass->unmap_event = NULL;
  klass->property_notify_event = gtk_selection_property_notify;
  klass->selection_clear_event = gtk_selection_clear;
  klass->selection_request_event = gtk_selection_request;
  klass->selection_notify_event = gtk_selection_notify;
  klass->selection_received = NULL;
  klass->proximity_in_event = NULL;
  klass->proximity_out_event = NULL;
  klass->drag_begin = NULL;
  klass->drag_end = NULL;
  klass->drag_data_delete = NULL;
  klass->drag_leave = NULL;
  klass->drag_motion = NULL;
  klass->drag_drop = NULL;
  klass->drag_data_received = NULL;

  klass->no_expose_event = NULL;

  klass->debug_msg = gtk_widget_debug_msg;
}

static void
gtk_widget_set_arg (GtkObject   *object,
		    GtkArg	*arg,
		    guint	 arg_id)
{
  GtkWidget *widget;

  widget = GTK_WIDGET (object);

  switch (arg_id)
    {
      guint32 saved_flags;
      
    case ARG_NAME:
      gtk_widget_set_name (widget, GTK_VALUE_STRING (*arg));
      break;
    case ARG_PARENT:
      gtk_container_add (GTK_CONTAINER (GTK_VALUE_OBJECT (*arg)), widget);
      break;
    case ARG_X:
      gtk_widget_set_uposition (widget, GTK_VALUE_INT (*arg), -2);
      break;
    case ARG_Y:
      gtk_widget_set_uposition (widget, -2, GTK_VALUE_INT (*arg));
      break;
    case ARG_WIDTH:
      gtk_widget_set_usize (widget, GTK_VALUE_INT (*arg), -2);
      break;
    case ARG_HEIGHT:
      gtk_widget_set_usize (widget, -2, GTK_VALUE_INT (*arg));
      break;
    case ARG_VISIBLE:
      if (GTK_VALUE_BOOL(*arg))
	gtk_widget_show (widget);
      else
	gtk_widget_hide (widget);
      break;
    case ARG_SENSITIVE:
      gtk_widget_set_sensitive (widget, GTK_VALUE_BOOL (*arg));
      break;
    case ARG_APP_PAINTABLE:
      gtk_widget_set_app_paintable (widget, GTK_VALUE_BOOL (*arg));
      break;
    case ARG_CAN_FOCUS:
      saved_flags = GTK_WIDGET_FLAGS (widget);
      if (GTK_VALUE_BOOL (*arg))
	GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
      else
	GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS);
      if (saved_flags != GTK_WIDGET_FLAGS (widget))
	gtk_widget_queue_resize (widget);
      break;
    case ARG_HAS_FOCUS:
      if (GTK_VALUE_BOOL (*arg))
	gtk_widget_grab_focus (widget);
      break;
    case ARG_CAN_DEFAULT:
      saved_flags = GTK_WIDGET_FLAGS (widget);
      if (GTK_VALUE_BOOL (*arg))
	GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_DEFAULT);
      else
	GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_DEFAULT);
      if (saved_flags != GTK_WIDGET_FLAGS (widget))
	gtk_widget_queue_resize (widget);
      break;
    case ARG_HAS_DEFAULT:
      if (GTK_VALUE_BOOL (*arg))
	gtk_widget_grab_default (widget);
      break;
    case ARG_RECEIVES_DEFAULT:
      if (GTK_VALUE_BOOL (*arg))
	GTK_WIDGET_SET_FLAGS (widget, GTK_RECEIVES_DEFAULT);
      else
	GTK_WIDGET_UNSET_FLAGS (widget, GTK_RECEIVES_DEFAULT);
      break;
    case ARG_COMPOSITE_CHILD:
      if (GTK_VALUE_BOOL(*arg))
	GTK_WIDGET_SET_FLAGS (widget, GTK_COMPOSITE_CHILD);
      else
	GTK_WIDGET_UNSET_FLAGS (widget, GTK_COMPOSITE_CHILD);
      break;
    case ARG_STYLE:
      gtk_widget_set_style (widget, (GtkStyle*) GTK_VALUE_BOXED (*arg));
      break;
    case ARG_EVENTS:
      if (!GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_NO_WINDOW (widget))
	gtk_widget_set_events (widget, GTK_VALUE_FLAGS (*arg));
      break;
    case ARG_EXTENSION_EVENTS:
      gtk_widget_set_extension_events (widget, GTK_VALUE_FLAGS (*arg));
      break;
    default:
      break;
    }
}

/*****************************************
 * gtk_widget_get_arg:
 *
 *   arguments:
 *
 *   results:
 *****************************************/

static void
gtk_widget_get_arg (GtkObject   *object,
		    GtkArg	*arg,
		    guint	 arg_id)
{
  GtkWidget *widget;

  widget = GTK_WIDGET (object);
  
  switch (arg_id)
    {
      GtkWidgetAuxInfo *aux_info;
      gint *eventp;
      GdkExtensionMode *modep;

    case ARG_NAME:
      if (widget->name)
	GTK_VALUE_STRING (*arg) = g_strdup (widget->name);
      else
	GTK_VALUE_STRING (*arg) = g_strdup ("");
      break;
    case ARG_PARENT:
      GTK_VALUE_OBJECT (*arg) = (GtkObject*) widget->parent;
      break;
    case ARG_X:
      aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
      if (!aux_info)
	GTK_VALUE_INT (*arg) = -1;
      else
	GTK_VALUE_INT (*arg) = aux_info->x;
      break;
    case ARG_Y:
      aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
      if (!aux_info)
	GTK_VALUE_INT (*arg) = -1;
      else
	GTK_VALUE_INT (*arg) = aux_info->y;
      break;
    case ARG_WIDTH:
      aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
      if (!aux_info)
	GTK_VALUE_INT (*arg) = -1;
      else
	GTK_VALUE_INT (*arg) = aux_info->width;
      break;
    case ARG_HEIGHT:
      aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
      if (!aux_info)
	GTK_VALUE_INT (*arg) = -1;
      else
	GTK_VALUE_INT (*arg) = aux_info->height;
      break;
    case ARG_VISIBLE:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_VISIBLE (widget) != FALSE);
      break;
    case ARG_SENSITIVE:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_SENSITIVE (widget) != FALSE);
      break;
    case ARG_APP_PAINTABLE:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_APP_PAINTABLE (widget) != FALSE);
      break;
    case ARG_CAN_FOCUS:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_CAN_FOCUS (widget) != FALSE);
      break;
    case ARG_HAS_FOCUS:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_HAS_FOCUS (widget) != FALSE);
      break;
    case ARG_CAN_DEFAULT:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_CAN_DEFAULT (widget) != FALSE);
      break;
    case ARG_HAS_DEFAULT:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_HAS_DEFAULT (widget) != FALSE);
      break;
    case ARG_RECEIVES_DEFAULT:
      GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_RECEIVES_DEFAULT (widget) != FALSE);