Trait atk::prelude::StateSetExt[−][src]

pub trait StateSetExt: 'static {
    fn add_state(&self, type_: StateType) -> bool;

    fn and_sets<P: IsA<StateSet>>(&self, compare_set: &P) -> Option<StateSet>;

    fn clear_states(&self);

    fn contains_state(&self, type_: StateType) -> bool;

    fn is_empty(&self) -> bool;

    fn or_sets<P: IsA<StateSet>>(&self, compare_set: &P) -> Option<StateSet>;

    fn remove_state(&self, type_: StateType) -> bool;

    fn xor_sets<P: IsA<StateSet>>(&self, compare_set: &P) -> Option<StateSet>;
}
Expand description

Trait containing all StateSet methods.

Implementors

StateSet

Required methods

Adds the state of the specified type to the state set if it is not already present.

Note that because an StateSet is a read-only object, this method should be used to add a state to a newly-created set which will then be returned by atk_object_ref_state_set. It should not be used to modify the existing state of an object. See also atk_object_notify_state_change.

type_

an StateType

Returns

true if the state for type_ is not already in self.

Constructs the intersection of the two sets, returning None if the intersection is empty.

compare_set

another StateSet

Returns

a new StateSet which is the intersection of the two sets.

Removes all states from the state set.

Checks whether the state for the specified type is in the specified set.

type_

an StateType

Returns

true if type_ is the state type is in self.

Checks whether the state set is empty, i.e. has no states set.

Returns

true if self has no states set, otherwise false

Constructs the union of the two sets.

compare_set

another StateSet

Returns

a new StateSet which is the union of the two sets, returning None is empty.

Removes the state for the specified type from the state set.

Note that because an StateSet is a read-only object, this method should be used to remove a state to a newly-created set which will then be returned by atk_object_ref_state_set. It should not be used to modify the existing state of an object. See also atk_object_notify_state_change.

type_

an AtkType

Returns

true if type_ was the state type is in self.

Constructs the exclusive-or of the two sets, returning None is empty. The set returned by this operation contains the states in exactly one of the two sets.

compare_set

another StateSet

Returns

a new StateSet which contains the states which are in exactly one of the two sets.

Implementors