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
Required Methods
fn group(&self) -> Vec<RadioMenuItem>
fn group(&self) -> Vec<RadioMenuItem>
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
fn join_group(&self, group_source: Option<&impl IsA<RadioMenuItem>>)
fn join_group(&self, group_source: Option<&impl IsA<RadioMenuItem>>)
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