Trait gtk::prelude::RadioMenuItemExt

source · [−]
pub trait RadioMenuItemExt: 'static {
    fn group(&self) -> Vec<RadioMenuItem>;
    fn join_group(&self, group_source: Option<&impl IsA<RadioMenuItem>>);
    fn connect_group_changed<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
}
Expand description

Trait containing all RadioMenuItem methods.

Implementors

RadioMenuItem

Required Methods

Returns the group to which the radio menu item belongs, as a GList of RadioMenuItem. The list belongs to GTK+ and should not be freed.

Returns

the group of self

Joins a RadioMenuItem object to the group of another RadioMenuItem object.

This function should be used by language bindings to avoid the memory manangement of the opaque GSList of group() and gtk_radio_menu_item_set_group().

A common way to set up a group of RadioMenuItem instances is:

  GtkRadioMenuItem *last_item = NULL;

  while ( ...more items to add... )
    {
      GtkRadioMenuItem *radio_item;

      radio_item = gtk_radio_menu_item_new (...);

      gtk_radio_menu_item_join_group (radio_item, last_item);
      last_item = radio_item;
    }
group_source

a RadioMenuItem whose group we are joining, or None to remove the self from its current group

Implementors