GSList*
gtk_radio_menu_item_get_group (GtkRadioMenuItem *radio_menu_item)
{
  g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item), NULL);

  return radio_menu_item->group;
}
/**
 * gtk_radio_menu_item_new_from_widget:
 * @group: An existing #GtkRadioMenuItem
 * 
 * Creates a new #GtkRadioMenuItem adding it to the same group as @group.
 * 
 * Return value: The new #GtkRadioMenuItem
 * 
 * Since: 2.4
 **/
GtkWidget *
gtk_radio_menu_item_new_from_widget (GtkRadioMenuItem *group)
{
  GSList *list = NULL;
  
  g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (group), NULL);

  if (group)
    list = gtk_radio_menu_item_get_group (group);
  
  return gtk_radio_menu_item_new (list);
}
/**
 * gtk_radio_menu_item_new_with_label_from_widget:
 * @group: an existing #GtkRadioMenuItem 
 * @label: the text for the label
 *
 * Creates a new GtkRadioMenuItem whose child is a simple GtkLabel.
 * The new #GtkRadioMenuItem is added to the same group as @group.
 *
 * Return value: The new #GtkRadioMenuItem
 * 
 * Since: 2.4
 **/
GtkWidget *
gtk_radio_menu_item_new_with_label_from_widget (GtkRadioMenuItem *group,
						const gchar *label)
{
  GSList *list = NULL;

  g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (group), NULL);

  if (group)
    list = gtk_radio_menu_item_get_group (group);

  return gtk_radio_menu_item_new_with_label (list, label);
}
Exemple #4
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static void on_menu_item_activate(GtkMenuItem *menuitem, MenuInfo *menu_info)
{
	if (!block_execute)
	{
		const MenuItem *menu_item;
		GtkWidget *widget = GTK_WIDGET(menuitem);

		for (menu_item = menu_info->items; menu_item->widget; menu_item++)
			if (menu_item->widget == widget)
				break;

		g_assert(menu_item->widget);

		if (!GTK_IS_RADIO_MENU_ITEM(menuitem) ||
			gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menuitem)))
		{
			menu_item_execute(menu_info, menu_item, TRUE);
		}
	}
}
static void
gtk_radio_menu_item_destroy (GtkObject *object)
{
  GtkWidget *old_group_singleton = NULL;
  GtkRadioMenuItem *radio_menu_item;
  GtkRadioMenuItem *tmp_menu_item;
  GSList *tmp_list;
  gboolean was_in_group;

  g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (object));

  radio_menu_item = GTK_RADIO_MENU_ITEM (object);

  was_in_group = radio_menu_item->group && radio_menu_item->group->next;
  
  radio_menu_item->group = g_slist_remove (radio_menu_item->group,
					   radio_menu_item);
  if (radio_menu_item->group && !radio_menu_item->group->next)
    old_group_singleton = radio_menu_item->group->data;

  tmp_list = radio_menu_item->group;

  while (tmp_list)
    {
      tmp_menu_item = tmp_list->data;
      tmp_list = tmp_list->next;

      tmp_menu_item->group = radio_menu_item->group;
    }

  /* this radio menu item is no longer in the group */
  radio_menu_item->group = NULL;
  
  if (old_group_singleton)
    g_signal_emit (old_group_singleton, group_changed_signal, 0);
  if (was_in_group)
    g_signal_emit (radio_menu_item, group_changed_signal, 0);
  
  if (GTK_OBJECT_CLASS (gtk_radio_menu_item_parent_class)->destroy)
    (* GTK_OBJECT_CLASS (gtk_radio_menu_item_parent_class)->destroy) (object);
}
static void
gtk_radio_menu_item_activate (GtkMenuItem *menu_item)
{
  GtkRadioMenuItem *radio_menu_item;
  GtkCheckMenuItem *check_menu_item;
  GtkCheckMenuItem *tmp_menu_item;
  GSList *tmp_list;
  gint toggled;

  g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (menu_item));

  radio_menu_item = GTK_RADIO_MENU_ITEM (menu_item);
  check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
  toggled = FALSE;

  if (check_menu_item->active)
    {
      tmp_menu_item = NULL;
      tmp_list = radio_menu_item->group;

      while (tmp_list)
	{
	  tmp_menu_item = tmp_list->data;
	  tmp_list = tmp_list->next;

	  if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
	    break;

	  tmp_menu_item = NULL;
	}

      if (tmp_menu_item)
	{
	  toggled = TRUE;
	  check_menu_item->active = !check_menu_item->active;
	}
    }
  else
    {
      toggled = TRUE;
      check_menu_item->active = !check_menu_item->active;

      tmp_list = radio_menu_item->group;
      while (tmp_list)
	{
	  tmp_menu_item = tmp_list->data;
	  tmp_list = tmp_list->next;

	  if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
	    {
	      gtk_menu_item_activate (GTK_MENU_ITEM (tmp_menu_item));
	      break;
	    }
	}
    }

  if (toggled)
    gtk_check_menu_item_toggled (check_menu_item);

  gtk_widget_queue_draw (GTK_WIDGET (radio_menu_item));
}
void
gtk_radio_menu_item_set_group (GtkRadioMenuItem *radio_menu_item,
			       GSList           *group)
{
  GtkWidget *old_group_singleton = NULL;
  GtkWidget *new_group_singleton = NULL;
  
  g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item));
  g_return_if_fail (!g_slist_find (group, radio_menu_item));

  if (radio_menu_item->group)
    {
      GSList *slist;

      radio_menu_item->group = g_slist_remove (radio_menu_item->group, radio_menu_item);
      
      if (radio_menu_item->group && !radio_menu_item->group->next)
	old_group_singleton = g_object_ref (radio_menu_item->group->data);
	  
      for (slist = radio_menu_item->group; slist; slist = slist->next)
	{
	  GtkRadioMenuItem *tmp_item;
	  
	  tmp_item = slist->data;
	  
	  tmp_item->group = radio_menu_item->group;
	}
    }
  
  if (group && !group->next)
    new_group_singleton = g_object_ref (group->data);
  
  radio_menu_item->group = g_slist_prepend (group, radio_menu_item);
  
  if (group)
    {
      GSList *slist;
      
      for (slist = group; slist; slist = slist->next)
	{
	  GtkRadioMenuItem *tmp_item;
	  
	  tmp_item = slist->data;
	  
	  tmp_item->group = radio_menu_item->group;
	}
    }
  else
    {
      GTK_CHECK_MENU_ITEM (radio_menu_item)->active = TRUE;
      /* gtk_widget_set_state (GTK_WIDGET (radio_menu_item), GTK_STATE_ACTIVE);
       */
    }

  g_object_ref (radio_menu_item);

  g_object_notify (G_OBJECT (radio_menu_item), "group");
  g_signal_emit (radio_menu_item, group_changed_signal, 0);
  if (old_group_singleton)
    {
      g_signal_emit (old_group_singleton, group_changed_signal, 0);
      g_object_unref (old_group_singleton);
    }
  if (new_group_singleton)
    {
      g_signal_emit (new_group_singleton, group_changed_signal, 0);
      g_object_unref (new_group_singleton);
    }

  g_object_unref (radio_menu_item);
}