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);
}
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);
}