Struct gtk4::EventControllerLegacy

pub struct EventControllerLegacy { /* private fields */ }

EventControllerLegacy is an event controller that provides raw access to the event stream.

It should only be used as a last resort if none of the other event controllers or gestures do the job.

Signals

event

Emitted for each GDK event delivered to @controller.

Implements

EventControllerExt, [trait@glib::ObjectExt]

Implementations

impl EventControllerLegacy

pub fn new() -> EventControllerLegacy

Creates a new legacy event controller.

Returns

the newly created event controller.

pub fn builder() -> EventControllerLegacyBuilder

Creates a new builder-pattern struct instance to construct EventControllerLegacy objects.

This method returns an instance of EventControllerLegacyBuilder which can be used to create EventControllerLegacy objects.

pub fn connect_event<F: Fn(&Self, &Event) -> Propagation + 'static>( &self, f: F ) -> SignalHandlerId

Emitted for each GDK event delivered to @controller.

event

the gdk::Event which triggered this signal

Returns

true to stop other handlers from being invoked for the event and the emission of this signal. false to propagate the event further.

Trait Implementations

impl Clone for EventControllerLegacy

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EventControllerLegacy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EventControllerLegacy

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for EventControllerLegacy

type ParamSpec = ParamSpecObject

type SetValue = EventControllerLegacy

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, EventControllerLegacy>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for EventControllerLegacy

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EventControllerLegacy

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl ParentClassIs for EventControllerLegacy

type Parent = EventController

impl<OT: ObjectType> PartialEq<OT> for EventControllerLegacy

fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for EventControllerLegacy

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for EventControllerLegacy

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for EventControllerLegacy

impl IsA<EventController> for EventControllerLegacy