Struct gtk::GestureRotate 
source · [−]#[repr(transparent)]pub struct GestureRotate { /* private fields */ }Expand description
GestureRotate is a Gesture implementation able to recognize
2-finger rotations, whenever the angle between both handled sequences
changes, the signal::GestureRotate::angle-changed signal is emitted.
Implements
Implementations
sourceimpl GestureRotate
 
impl GestureRotate
sourcepub fn new(widget: &impl IsA<Widget>) -> GestureRotate
 
pub fn new(widget: &impl IsA<Widget>) -> GestureRotate
Returns a newly created Gesture that recognizes 2-touch
rotation gestures.
widget
a Widget
Returns
a newly created GestureRotate
sourcepub fn builder() -> GestureRotateBuilder
 
pub fn builder() -> GestureRotateBuilder
Creates a new builder-pattern struct instance to construct GestureRotate objects.
This method returns an instance of GestureRotateBuilder which can be used to create GestureRotate objects.
sourcepub fn angle_delta(&self) -> f64
 
pub fn angle_delta(&self) -> f64
If self is active, this function returns the angle difference
in radians since the gesture was first recognized. If self is
not active, 0 is returned.
Returns
the angle delta in radians
sourcepub fn connect_angle_changed<F: Fn(&Self, f64, f64) + 'static>(
    &self,
    f: F
) -> SignalHandlerId
 
pub fn connect_angle_changed<F: Fn(&Self, f64, f64) + 'static>(
    &self,
    f: F
) -> SignalHandlerId
This signal is emitted when the angle between both tracked points changes.
angle
Current angle in radians
angle_delta
Difference with the starting angle, in radians
Trait Implementations
sourceimpl Clone for GestureRotate
 
impl Clone for GestureRotate
sourceimpl Debug for GestureRotate
 
impl Debug for GestureRotate
sourceimpl Default for GestureRotate
 
impl Default for GestureRotate
sourceimpl Display for GestureRotate
 
impl Display for GestureRotate
sourceimpl Hash for GestureRotate
 
impl Hash for GestureRotate
sourceimpl Ord for GestureRotate
 
impl Ord for GestureRotate
1.21.0 · sourceconst fn max(self, other: Self) -> Self
 
const fn max(self, other: Self) -> Self
1.21.0 · sourceconst fn min(self, other: Self) -> Self
 
const fn min(self, other: Self) -> Self
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: PartialOrd<Self>,
 
const fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: PartialOrd<Self>,
sourceimpl ParentClassIs for GestureRotate
 
impl ParentClassIs for GestureRotate
sourceimpl<OT: ObjectType> PartialEq<OT> for GestureRotate
 
impl<OT: ObjectType> PartialEq<OT> for GestureRotate
sourceimpl<OT: ObjectType> PartialOrd<OT> for GestureRotate
 
impl<OT: ObjectType> PartialOrd<OT> for GestureRotate
sourcefn partial_cmp(&self, other: &OT) -> Option<Ordering>
 
fn partial_cmp(&self, other: &OT) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
 
const fn le(&self, other: &Rhs) -> bool
self and other) and is used by the <=
operator. Read moresourceimpl StaticType for GestureRotate
 
impl StaticType for GestureRotate
sourcefn static_type() -> Type
 
fn static_type() -> Type
Self.impl Eq for GestureRotate
impl IsA<EventController> for GestureRotate
impl IsA<Gesture> for GestureRotate
Auto Trait Implementations
impl RefUnwindSafe for GestureRotate
impl !Send for GestureRotate
impl !Sync for GestureRotate
impl Unpin for GestureRotate
impl UnwindSafe for GestureRotate
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
    T: ?Sized,
 
impl<T> BorrowMut<T> for Twhere
    T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
 
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> Cast for Twhere
    T: ObjectType,
 
impl<T> Cast for Twhere
    T: ObjectType,
sourcefn upcast<T>(self) -> Twhere
    T: ObjectType,
    Self: IsA<T>,
 
fn upcast<T>(self) -> Twhere
    T: ObjectType,
    Self: IsA<T>,
T. Read moresourcefn upcast_ref<T>(&self) -> &Twhere
    T: ObjectType,
    Self: IsA<T>,
 
fn upcast_ref<T>(&self) -> &Twhere
    T: ObjectType,
    Self: IsA<T>,
T. Read moresourcefn downcast<T>(self) -> Result<T, Self>where
    T: ObjectType,
    Self: CanDowncast<T>,
 
fn downcast<T>(self) -> Result<T, Self>where
    T: ObjectType,
    Self: CanDowncast<T>,
T. Read moresourcefn downcast_ref<T>(&self) -> Option<&T>where
    T: ObjectType,
    Self: CanDowncast<T>,
 
fn downcast_ref<T>(&self) -> Option<&T>where
    T: ObjectType,
    Self: CanDowncast<T>,
T. Read moresourcefn dynamic_cast<T>(self) -> Result<T, Self>where
    T: ObjectType,
 
fn dynamic_cast<T>(self) -> Result<T, Self>where
    T: ObjectType,
T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read moresourcefn dynamic_cast_ref<T>(&self) -> Option<&T>where
    T: ObjectType,
 
fn dynamic_cast_ref<T>(&self) -> Option<&T>where
    T: ObjectType,
T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read moresourceunsafe fn unsafe_cast<T>(self) -> Twhere
    T: ObjectType,
 
unsafe fn unsafe_cast<T>(self) -> Twhere
    T: ObjectType,
T unconditionally. Read moresourceunsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
    T: ObjectType,
 
unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere
    T: ObjectType,
&T unconditionally. Read moresourceimpl<U> IsSubclassableExt for Uwhere
    U: IsClass + ParentClassIs,
 
impl<U> IsSubclassableExt for Uwhere
    U: IsClass + ParentClassIs,
fn parent_class_init<T>(class: &mut Class<U>)where
    T: ObjectSubclass,
    <U as ParentClassIs>::Parent: IsSubclassable<T>,
fn parent_instance_init<T>(instance: &mut InitializingObject<T>)where
    T: ObjectSubclass,
    <U as ParentClassIs>::Parent: IsSubclassable<T>,
sourceimpl<T> ObjectExt for Twhere
    T: ObjectType,
 
impl<T> ObjectExt for Twhere
    T: ObjectType,
sourcefn is<U>(&self) -> boolwhere
    U: StaticType,
 
fn is<U>(&self) -> boolwhere
    U: StaticType,
true if the object is an instance of (can be cast to) T.sourcefn object_class(&self) -> &Class<Object>
 
fn object_class(&self) -> &Class<Object>
ObjectClass of the object. Read moresourcefn class_of<U>(&self) -> Option<&Class<U>>where
    U: IsClass,
 
fn class_of<U>(&self) -> Option<&Class<U>>where
    U: IsClass,
T. Read moresourcefn interface<U>(&self) -> Option<InterfaceRef<'_, U>>where
    U: IsInterface,
 
fn interface<U>(&self) -> Option<InterfaceRef<'_, U>>where
    U: IsInterface,
T of the object. Read moresourcefn set_property<V>(&self, property_name: &str, value: V)where
    V: ToValue,
 
fn set_property<V>(&self, property_name: &str, value: V)where
    V: ToValue,
sourcefn set_property_from_value(&self, property_name: &str, value: &Value)
 
fn set_property_from_value(&self, property_name: &str, value: &Value)
sourcefn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
 
fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])
sourcefn set_properties_from_value(&self, property_values: &[(&str, Value)])
 
fn set_properties_from_value(&self, property_values: &[(&str, Value)])
sourcefn property<V>(&self, property_name: &str) -> Vwhere
    V: 'static + for<'b> FromValue<'b>,
 
fn property<V>(&self, property_name: &str) -> Vwhere
    V: 'static + for<'b> FromValue<'b>,
property_name of the object and cast it to the type V. Read moresourcefn property_value(&self, property_name: &str) -> Value
 
fn property_value(&self, property_name: &str) -> Value
property_name of the object. Read moresourcefn property_type(&self, property_name: &str) -> Option<Type>
 
fn property_type(&self, property_name: &str) -> Option<Type>
property_name of this object. Read moresourcefn find_property(&self, property_name: &str) -> Option<ParamSpec>
 
fn find_property(&self, property_name: &str) -> Option<ParamSpec>
ParamSpec of the property property_name of this object.sourcefn list_properties(&self) -> PtrSlice<ParamSpec>
 
fn list_properties(&self) -> PtrSlice<ParamSpec>
ParamSpec of the properties of this object.sourcefn freeze_notify(&self) -> PropertyNotificationFreezeGuard
 
fn freeze_notify(&self) -> PropertyNotificationFreezeGuard
sourceunsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
    QD: 'static,
 
unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where
    QD: 'static,
key. Read moresourceunsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where
    QD: 'static,
 
unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where
    QD: 'static,
key. Read moresourceunsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where
    QD: 'static,
 
unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where
    QD: 'static,
key. Read moresourceunsafe fn set_data<QD>(&self, key: &str, value: QD)where
    QD: 'static,
 
unsafe fn set_data<QD>(&self, key: &str, value: QD)where
    QD: 'static,
key. Read moresourceunsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where
    QD: 'static,
 
unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where
    QD: 'static,
key. Read moresourceunsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where
    QD: 'static,
 
unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where
    QD: 'static,
key. Read moresourcefn block_signal(&self, handler_id: &SignalHandlerId)
 
fn block_signal(&self, handler_id: &SignalHandlerId)
sourcefn unblock_signal(&self, handler_id: &SignalHandlerId)
 
fn unblock_signal(&self, handler_id: &SignalHandlerId)
sourcefn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
 
fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)
sourcefn stop_signal_emission_by_name(&self, signal_name: &str)
 
fn stop_signal_emission_by_name(&self, signal_name: &str)
sourcefn connect<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
 
fn connect<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
signal_name on this object. Read moresourcefn connect_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
 
fn connect_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
signal_id on this object. Read moresourcefn connect_local<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value>,
 
fn connect_local<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value>,
signal_name on this object. Read moresourcefn connect_local_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value>,
 
fn connect_local_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: 'static + Fn(&[Value]) -> Option<Value>,
signal_id on this object. Read moresourceunsafe fn connect_unsafe<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: Fn(&[Value]) -> Option<Value>,
 
unsafe fn connect_unsafe<F>(
    &self,
    signal_name: &str,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: Fn(&[Value]) -> Option<Value>,
signal_name on this object. Read moresourceunsafe fn connect_unsafe_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: Fn(&[Value]) -> Option<Value>,
 
unsafe fn connect_unsafe_id<F>(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    callback: F
) -> SignalHandlerIdwhere
    F: Fn(&[Value]) -> Option<Value>,
signal_id on this object. Read moresourcefn connect_closure(
    &self,
    signal_name: &str,
    after: bool,
    closure: RustClosure
) -> SignalHandlerId
 
fn connect_closure(
    &self,
    signal_name: &str,
    after: bool,
    closure: RustClosure
) -> SignalHandlerId
signal_name on this object. Read moresourcefn connect_closure_id(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    closure: RustClosure
) -> SignalHandlerId
 
fn connect_closure_id(
    &self,
    signal_id: SignalId,
    details: Option<Quark>,
    after: bool,
    closure: RustClosure
) -> SignalHandlerId
signal_id on this object. Read moresourcefn watch_closure(&self, closure: &impl AsRef<Closure>)
 
fn watch_closure(&self, closure: &impl AsRef<Closure>)
closure to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values, or
invoke when using Rust closures. Read moresourcefn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
    R: TryFromClosureReturnValue,
 
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
    R: TryFromClosureReturnValue,
sourcefn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
 
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Self::emit but takes Value for the arguments.sourcefn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
    R: TryFromClosureReturnValue,
 
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
    R: TryFromClosureReturnValue,
sourcefn emit_by_name_with_values(
    &self,
    signal_name: &str,
    args: &[Value]
) -> Option<Value>
 
fn emit_by_name_with_values(
    &self,
    signal_name: &str,
    args: &[Value]
) -> Option<Value>
sourcefn emit_by_name_with_details<R>(
    &self,
    signal_name: &str,
    details: Quark,
    args: &[&dyn ToValue]
) -> Rwhere
    R: TryFromClosureReturnValue,
 
fn emit_by_name_with_details<R>(
    &self,
    signal_name: &str,
    details: Quark,
    args: &[&dyn ToValue]
) -> Rwhere
    R: TryFromClosureReturnValue,
sourcefn emit_by_name_with_details_and_values(
    &self,
    signal_name: &str,
    details: Quark,
    args: &[Value]
) -> Option<Value>
 
fn emit_by_name_with_details_and_values(
    &self,
    signal_name: &str,
    details: Quark,
    args: &[Value]
) -> Option<Value>
sourcefn emit_with_details<R>(
    &self,
    signal_id: SignalId,
    details: Quark,
    args: &[&dyn ToValue]
) -> Rwhere
    R: TryFromClosureReturnValue,
 
fn emit_with_details<R>(
    &self,
    signal_id: SignalId,
    details: Quark,
    args: &[&dyn ToValue]
) -> Rwhere
    R: TryFromClosureReturnValue,
sourcefn emit_with_details_and_values(
    &self,
    signal_id: SignalId,
    details: Quark,
    args: &[Value]
) -> Option<Value>
 
fn emit_with_details_and_values(
    &self,
    signal_id: SignalId,
    details: Quark,
    args: &[Value]
) -> Option<Value>
sourcefn disconnect(&self, handler_id: SignalHandlerId)
 
fn disconnect(&self, handler_id: SignalHandlerId)
sourcefn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
    F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
 
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
    F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
notify signal of the object. Read moresourcefn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
    F: 'static + Fn(&T, &ParamSpec),
 
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
    F: 'static + Fn(&T, &ParamSpec),
notify signal of the object. Read moresourceunsafe fn connect_notify_unsafe<F>(
    &self,
    name: Option<&str>,
    f: F
) -> SignalHandlerIdwhere
    F: Fn(&T, &ParamSpec),
 
unsafe fn connect_notify_unsafe<F>(
    &self,
    name: Option<&str>,
    f: F
) -> SignalHandlerIdwhere
    F: Fn(&T, &ParamSpec),
notify signal of the object. Read more