Struct zng :: var :: ReadOnlyVar Copy item path

impl<T> ReadOnlyVar<Response<T>, ArcVar<Response<T>>>
where T: VarValue,

pub fn with_rsp<R>(&self, read: impl FnOnce(&T) -> R) -> Option<R>

Visit the response, if present.

pub fn with_new_rsp<R>(&self, read: impl FnOnce(&T) -> R) -> Option<R>

Visit the response, if present and new.

pub fn is_done(&self) -> bool

If the response is received.

pub fn is_waiting(&self) -> bool

If the response is not received yet.

pub fn rsp(&self) -> Option<T>

Clone the response value, if present.

pub async fn wait_rsp(&self) -> T

Returns a future that awaits until a response is received and then returns a clone.

pub async fn wait_into_rsp(self) -> T

Returns a future that awaits until a response is received and then returns it.

Will clone the value if the variable is shared.

Note that ResponseVar<T> implements IntoFuture so you can also just .await the variable.

pub async fn wait_done(&self)

Returns a future that awaits until a response is received.

pub fn rsp_new(&self) -> Option<T>

Clone the response, if present and new.

pub fn into_rsp(self) -> Option<T>

Into response, if received.

Clones if the variable is has more than one strong reference.

pub fn map_rsp<O, I, M>(&self, waiting_value: I, map: M) -> impl Var<O>
where O: VarValue, I: Fn() -> O + Send + Sync + 'static, M: FnOnce(&T) -> O + Send + 'static,

Map the response value using map, if the variable is awaiting a response uses the waiting_value first.

pub fn map_response<O, M>( &self, map: M, ) -> ReadOnlyVar<Response<O>, ArcVar<Response<O>>>
where O: VarValue, M: FnMut(&T) -> O + Send + 'static,

Map to another response variable.

Trait Implementations§

impl<T, V> AnyVar for ReadOnlyVar<T, V>
where T: VarValue, V: Var<T>,

fn clone_any(&self) -> Box<dyn AnyVar>

Clone the variable into a type erased box. Read more

fn as_any(&self) -> &(dyn Any + 'static)

Access to dyn Any methods.

fn as_unboxed_any(&self) -> &(dyn Any + 'static)

Access to dyn Any methods, on the underlying variable type if boxed.

fn double_boxed_any(self: Box<ReadOnlyVar<T, V>>) -> Box<dyn Any>

Access to Box<dyn Any> methods, with the BoxedVar<T> type. Read more

fn var_type_id(&self) -> TypeId

Gets the TypeId of T in Var<T>.

fn get_any(&self) -> Box<dyn AnyVarValue>

Get a clone of the current value, with type erased.

fn with_any(&self, read: &mut dyn FnMut(&(dyn AnyVarValue + 'static)))

Visit the current value of the variable.

fn with_new_any( &self, read: &mut dyn FnMut(&(dyn AnyVarValue + 'static)), ) -> bool

Visit the current value of the variable, if it is_new.

fn set_any(&self, _: Box<dyn AnyVarValue>) -> Result<(), VarIsReadOnlyError>

Schedule a new value for the variable, it will be set in the end of the current app update. Read more

fn last_update(&self) -> VarUpdateId

Last update ID a variable was modified, if the ID is equal to VARS.update_id the variable is new.

fn is_contextual(&self) -> bool

If the variable represents different values depending on the context where they are read.

fn capabilities(&self) -> VarCapability

Flags that indicate what operations the variable is capable of in this update.

fn hook_any( &self, pos_modify_action: Box<dyn Fn(&AnyVarHookArgs<'_>) -> bool + Sync + Send>, ) -> VarHandle

Setups a callback for just after the variable value update is applied, the closure runs in the root app context, just like the modify closure. The closure can return if it is retained after each call. If you modify another variable in a hook the modification applies in the same update, variable mapping and binding is implemented using hooks. Read more

fn hook_animation_stop( &self, handler: Box<dyn FnOnce() + Send>, ) -> Result<(), Box<dyn FnOnce() + Send>>

Register a handler to be called when the current animation stops. Read more

fn strong_count(&self) -> usize

Gets the number of strong references to the variable. Read more

fn weak_count(&self) -> usize

Gets the number of weak references to the variable. Read more

fn actual_var_any(&self) -> Box<dyn AnyVar>

Gets a clone of the represented var from ContextVar<T>, gets a clone of self for other var types.

fn downgrade_any(&self) -> Box<dyn AnyWeakVar>

Create a weak reference to this Arc variable. Read more

fn is_animating(&self) -> bool

If the variable current value was set by an active animation. Read more

fn modify_importance(&self) -> usize

Gets a value that indicates the importance clearance that is needed to modify this variable. Read more

fn var_ptr(&self) -> VarPtr<'_>

Var pointer, that can be used to identify if two variables point to the same rc or context. Read more

fn get_debug(&self) -> Txt

Get the value as a debug Txt.

fn update(&self) -> Result<(), VarIsReadOnlyError>

Schedule a variable update, even if the value does no change. Read more

fn map_debug(&self) -> Box<dyn VarBoxed<Txt>>

Create a map that converts from T to a Txt debug print.

fn is_new(&self) -> bool

Gets if the last_update is the current update, meaning the variable value just changed. Read more

fn perm(&self)

Hold the variable in memory until the app exit.

fn hold_any(&self, value: Box<dyn Any + Sync + Send>) -> VarHandle

Keep other alive until the handle or self are dropped.

impl<T, V> Clone for ReadOnlyVar<T, V>
where T: VarValue, V: Var<T>,

fn clone(&self) -> ReadOnlyVar<T, V>

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl From<ReadOnlyVar<Img, ArcVar<Img>>> for ImageSource

fn from(image: ReadOnlyVar<Img, ArcVar<Img>>) -> ImageSource

Converts to this type from the input type.

impl From<ReadOnlyVar<Img, ArcVar<Img>>> for WindowIcon

fn from(image: ReadOnlyVar<Img, ArcVar<Img>>) -> WindowIcon

Converts to this type from the input type.

impl<T> IntoFuture for ReadOnlyVar<Response<T>, ArcVar<Response<T>>>
where T: VarValue,

type Output = T

The output that the future will produce on completion.

type IntoFuture = Pin<Box<dyn Future<Output = T> + Sync + Send>>

Which kind of future are we turning this into?

fn into_future( self, ) -> <ReadOnlyVar<Response<T>, ArcVar<Response<T>>> as IntoFuture>::IntoFuture

Creates a future from a value. Read more

impl IntoVar<ImageSource> for ReadOnlyVar<Img, ArcVar<Img>>

type Var = LocalVar<ImageSource>

Variable type that will wrap the T value. Read more

fn into_var( self, ) -> <ReadOnlyVar<Img, ArcVar<Img>> as IntoVar<ImageSource>>::Var

Converts the source value into a var.

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more

impl<T, V> IntoVar<T> for ReadOnlyVar<T, V>
where T: VarValue, V: Var<T>,

type Var = ReadOnlyVar<T, V>

Variable type that will wrap the T value. Read more

fn into_var(self) -> <ReadOnlyVar<T, V> as IntoVar<T>>::Var

Converts the source value into a var.

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more

impl IntoVar<WindowIcon> for ReadOnlyVar<Img, ArcVar<Img>>

type Var = LocalVar<WindowIcon>

Variable type that will wrap the T value. Read more

fn into_var(self) -> <ReadOnlyVar<Img, ArcVar<Img>> as IntoVar<WindowIcon>>::Var

Converts the source value into a var.

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more

impl<T> ResponseVarSubscribe<T> for ReadOnlyVar<Response<T>, ArcVar<Response<T>>>
where T: VarValue,

fn on_pre_rsp<H>(&self, handler: H) -> VarHandle
where H: AppHandler<OnVarArgs<T>>,

Add a handler that is called once when the response is received, the handler is called before all other UI updates. Read more

fn on_rsp<H>(&self, handler: H) -> VarHandle
where H: AppHandler<OnVarArgs<T>>,

Add a handler that is called once when the response is received, the handler is called after all other UI updates. Read more

type Map<O: VarValue> = <V as Var<T>>::Map<O>

Output of Var::map.

type MapBidi<O: VarValue> = <V as Var<T>>::Map<O>

Output of Var::map_bidi.

type FlatMap<O: VarValue, VF: Var<O>> = <V as Var<T>>::FlatMap<O, VF>

Output of Var::flat_map.

type FilterMap<O: VarValue> = <V as Var<T>>::FilterMap<O>

Output of Var::filter_map.

type FilterMapBidi<O: VarValue> = <V as Var<T>>::FilterMap<O>

Output of Var::filter_map_bidi.

type MapRef<O: VarValue> = <V as Var<T>>::MapRef<O>

Output of Var::map_ref.

type MapRefBidi<O: VarValue> = <V as Var<T>>::MapRef<O>

Output of Var::map_ref_bidi.

type Easing = <<V as Var<T>>::Easing as Var<T>>::ReadOnly

Output of Var::easing.

fn with<R, F>(&self, read: F) -> R
where F: FnOnce(&T) -> R,

Visit the current value of the variable.

fn modify<F>(&self, _: F) -> Result<(), VarIsReadOnlyError>
where F: FnOnce(&mut VarModify<'_, T>) + 'static,

Schedule a variable update, it will be applied on the end of the current app update.

fn boxed(self) -> Box<dyn VarBoxed<T>>
where ReadOnlyVar<T, V>: Sized,

Gets the variable as a BoxedVar<T>, does not double box.

fn actual_var(self) -> <ReadOnlyVar<T, V> as Var<T>>::ActualVar

Gets the current inner var represented by this var. This can be the same var or a context var.

fn downgrade(&self) -> <ReadOnlyVar<T, V> as Var<T>>::Downgrade

Create a weak reference to this Arc variable.

fn into_value(self) -> T

Convert this variable to the value, if possible moves the value, if it is shared clones it.

fn read_only(&self) -> <ReadOnlyVar<T, V> as Var<T>>::ReadOnly

Gets a clone of the var that is always read-only. Read more

fn map<O, M>(&self, map: M) -> <ReadOnlyVar<T, V> as Var<T>>::Map<O>
where O: VarValue, M: FnMut(&T) -> O + Send + 'static,

Creates a var that maps from this variable. Read more

fn map_bidi<O, M, B>( &self, map: M, _: B, ) -> <ReadOnlyVar<T, V> as Var<T>>::MapBidi<O>
where O: VarValue, M: FnMut(&T) -> O + Send + 'static, B: FnMut(&O) -> T + Send + 'static,

Create a var that maps from this variable on read and to it on write. Read more

fn flat_map<O, VF, M>( &self, map: M, ) -> <ReadOnlyVar<T, V> as Var<T>>::FlatMap<O, VF>
where O: VarValue, VF: Var<O>, M: FnMut(&T) -> VF + Send + 'static,

Create a var that maps to an inner variable that is found inside the value of this variable. Read more

fn filter_map<O, M, I>( &self, map: M, fallback: I, ) -> <ReadOnlyVar<T, V> as Var<T>>::FilterMap<O>
where O: VarValue, M: FnMut(&T) -> Option<O> + Send + 'static, I: Fn() -> O + Send + Sync + 'static,

Creates a ref-counted var that maps from this variable, but can retain a previous mapped value. Read more

fn filter_map_bidi<O, M, B, I>( &self, map: M, _: B, fallback: I, ) -> <ReadOnlyVar<T, V> as Var<T>>::FilterMapBidi<O>
where O: VarValue, M: FnMut(&T) -> Option<O> + Send + 'static, B: FnMut(&O) -> Option<T> + Send + 'static, I: Fn() -> O + Send + Sync + 'static,

Create a var that maps from this variable on read and to it on write, mapping in both directions can skip updates, retaining the previous mapped value. Read more

fn map_ref<O, M>(&self, map: M) -> <ReadOnlyVar<T, V> as Var<T>>::MapRef<O>
where O: VarValue, M: Fn(&T) -> &O + Send + Sync + 'static,

Create a mapping wrapper around self. The map closure is called for each value access, it must reference the value O that already exists in T.

fn map_ref_bidi<O, M, B>( &self, map: M, _: B, ) -> <ReadOnlyVar<T, V> as Var<T>>::MapRefBidi<O>
where O: VarValue, M: Fn(&T) -> &O + Send + Sync + 'static, B: Fn(&mut T) -> &mut O + Send + Sync + 'static,

Create a mapping wrapper around self. The map closure is called for each value access, it must reference the value O that already exists in T, the map_mut closure is called for every modify request, it must do the same as map but with mutable access.

fn easing<F>( &self, duration: Duration, easing: F, ) -> <ReadOnlyVar<T, V> as Var<T>>::Easing
where T: Transitionable, F: Fn(EasingTime) -> Factor + Send + Sync + 'static,

Create a vars that ease to each new value of self. Read more

fn easing_with<F, S>( &self, duration: Duration, easing: F, sampler: S, ) -> <ReadOnlyVar<T, V> as Var<T>>::Easing
where T: Transitionable, F: Fn(EasingTime) -> Factor + Send + Sync + 'static, S: Fn(&Transition<T>, Factor) -> T + Send + Sync + 'static,

Create a vars that ease_with to each new value of self. Read more

fn boxed_any(self) -> Box<dyn AnyVar>
where Self: Sized,

Gets the variable as a BoxedAnyVar, does not double box.

fn hook( &self, pos_modify_action: impl Fn(&VarHookArgs<'_, T>) -> bool + Send + Sync + 'static, ) -> VarHandle

Setups a callback for just after the variable value update is applied, the closure runs in the root app context, just like the modify closure. The closure can return if it is retained after each call. If you modify another variable in a hook the modification applies in the same update, variable mapping and binding is implemented using hooks. Read more

fn wait_update(&self) -> impl Future<Output = VarUpdateId> + Send + Sync

Awaits for the last_update to change. Read more

fn wait_animation(&self) -> impl Future<Output = ()> + Send + Sync

Awaits for is_animating to change from true to false. Read more

fn wait_value( &self, predicate: impl Fn(&T) -> bool + Send + Sync, ) -> impl Future<Output = ()> + Send + Sync

Awaits for a value that passes the predicate.

fn with_new<R, F>(&self, read: F) -> Option<R>
where F: FnOnce(&T) -> R,

Visit the current value of the variable, if it is_new.

fn get(&self) -> T

Get a clone of the current value.

fn get_into(&self, value: &mut T)

Get a clone of the current value into value.

fn get_ne(&self, value: &mut T) -> bool

Get a clone of the current value into value if the current value is not equal to it.

fn get_new(&self) -> Option<T>

Get a clone of the current value, if it is_new.

fn get_new_into(&self, value: &mut T) -> bool

Get a clone of the current value into value if the current value is_new.

fn get_new_ne(&self, value: &mut T) -> bool

Get a clone of the current value into value if the variable value is_new and not equal to the value.

fn set(&self, value: I) -> Result<(), VarIsReadOnlyError>
where I: Into<T>,

Schedule a new value for the variable, it will be set in the end of the current app update.

fn set_from(&self, other: &I) -> Result<(), VarIsReadOnlyError>
where I: Var<T>,

Schedule a new value for the variable, it will be set in the end of the current app update to the updated value of other, so if the other var has already scheduled an update, the updated value will be used. Read more

fn set_from_map<Iv, I, M>( &self, other: &I, map: M, ) -> Result<(), VarIsReadOnlyError>
where Iv: VarValue, I: Var<Iv>, M: FnOnce(&Iv) -> T + Send + 'static,

Set from other value at the time of update, mapped to the type of self.

fn cow(&self) -> ArcCowVar<T, Self>

Create a var that redirects to this variable until the first value update, then it behaves like a ArcVar<T>. Read more

fn map_into<O>(&self) -> Self::Map<O>
where O: VarValue, T: Into<O>,

Creates a map that converts from T to O using Into<O>.

fn filter_try_into<O, I>(&self, fallback: I) -> Self::FilterMap<O>
where O: VarValue, T: TryInto<O>, I: Fn() -> O + Send + Sync + 'static,

Create a filter_map that tries to convert from T to O using TryInto<O>.

fn bind_map<T2, V2, M>(&self, other: &V2, map: M) -> VarHandle
where T2: VarValue, V2: Var<T2>, M: FnMut(&T) -> T2 + Send + 'static,

Setup a hook that assigns other with the new values of self transformed by map. Read more

fn bind_filter_map<T2, V2, F>(&self, other: &V2, map: F) -> VarHandle
where T2: VarValue, V2: Var<T2>, F: FnMut(&T) -> Option<T2> + Send + 'static,

Setup a hook that assigns other with the new values of self transformed by map, if the closure returns a value. Read more

fn bind_map_bidi<T2, V2, M, B>( &self, other: &V2, map: M, map_back: B, ) -> VarHandles
where T2: VarValue, V2: Var<T2>, M: FnMut(&T) -> T2 + Send + 'static, B: FnMut(&T2) -> T + Send + 'static,

Bind self to other and back without causing an infinite loop. Read more

fn bind_filter_map_bidi<T2, V2, M, B>( &self, other: &V2, map: M, map_back: B, ) -> VarHandles
where T2: VarValue, V2: Var<T2>, M: FnMut(&T) -> Option<T2> + Send + 'static, B: FnMut(&T2) -> Option<T> + Send + 'static,

Bind self to other and back with the new values of self transformed by map and the new values of other transformed by map_back, the value is assigned in a update only if the closures returns a value. Read more

fn bind<V2>(&self, other: &V2) -> VarHandle
where V2: Var<T>,

Setup a hook that assigns other with the new values of self. Read more

fn set_bind<V2>(&self, other: &V2) -> VarHandle
where V2: Var<T>,

Calls other.set_from(self) and self.bind(other).

fn bind_bidi<V2>(&self, other: &V2) -> VarHandles
where V2: Var<T>,

Setup two hooks that assigns other with the new values of self and self with the new values of other. Read more

fn trace_value<E, S>(&self, enter_value: E) -> VarHandle
where E: FnMut(&TraceValueArgs<'_, T>) -> S + Send + 'static, S: Send + 'static,

Debug helper for tracing the lifetime of a value in this variable. Read more

fn animate<A>(&self, animate: A) -> AnimationHandle
where A: FnMut(&Animation, &mut VarModify<'_, T>) + Send + 'static,

Schedule an animation that targets this variable. Read more

fn sequence<A>(&self, animate: A) -> VarHandle
where A: FnMut(&<<Self::ActualVar as Var<T>>::Downgrade as WeakVar<T>>::Upgrade) -> AnimationHandle + Send + 'static,

Schedule animations started by animate, the closure is called once at the start to begin, then again every time the variable stops animating. Read more

fn step<N>(&self, new_value: N, delay: Duration) -> AnimationHandle
where N: Into<T>,

Set the variable to new_value after a delay. Read more

fn step_oci<N>(&self, new_value: N, delay: Duration) -> AnimationHandle
where N: Into<T>,

Oscillate between the current value and new_value, every time the delay elapses the variable is set to the next value.

fn set_step_oci<V0, V1>( &self, from: V0, to: V1, delay: Duration, ) -> AnimationHandle
where V0: Into<T>, V1: Into<T>,

Oscillate between from and to, the variable is set to from to start and every time the delay elapses the variable is set to the next value.

fn steps<F>( &self, steps: Vec<(Factor, T)>, duration: Duration, easing: F, ) -> AnimationHandle
where F: Fn(EasingTime) -> Factor + Send + 'static,

Set the variable to a sequence of values as a time duration elapses. Read more

fn debug(&self) -> VarDebug<'_, T, Self>

Returns a wrapper that implements fmt::Debug to write the var value.

fn hold<V>(&self, value: V) -> VarHandle
where V: Any + Send,

Keep value alive until the handle or self are dropped.

impl IntoValue<ImageSource> for ReadOnlyVar<Img, ArcVar<Img>>

impl IntoValue<WindowIcon> for ReadOnlyVar<Img, ArcVar<Img>>

Auto Trait Implementations§

impl<T, V> Freeze for ReadOnlyVar<T, V>
where V: Freeze,

impl<T, V> RefUnwindSafe for ReadOnlyVar<T, V>
where V: RefUnwindSafe, T: RefUnwindSafe,

impl<T, V> Send for ReadOnlyVar<T, V>
where V: Send, T: Send,

impl<T, V> Sync for ReadOnlyVar<T, V>
where V: Sync, T: Sync,

impl<T, V> Unpin for ReadOnlyVar<T, V>
where V: Unpin, T: Unpin,

impl<T, V> UnwindSafe for ReadOnlyVar<T, V>
where V: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<V> AnyVarSubscribe for V
where V: AnyVar,

Register the widget to receive an UpdateOp when this variable is new. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> Downcast for T
where T: Any,

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

impl<T> DowncastSync for T
where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<V> LightDarkVarExt for V
where V: Var<LightDark>,

fn rgba(&self) -> impl Var<Rgba>

Gets a contextualized var that maps to LightDark::rgba.

fn rgba_map<T>( &self, map: impl FnMut(Rgba) -> T + Send + 'static, ) -> impl Var<T>
where T: VarValue,

Gets a contextualized var that maps to LightDark::rgba and map.

fn rgba_into<T>(&self) -> impl Var<T>
where T: VarValue + From<Rgba>,

Gets a contextualized var that maps to LightDark::rgba converted into T.

fn map_rgba( &self, map: impl FnMut(LightDark) -> LightDark + Send + 'static, ) -> impl Var<Rgba>

Gets a contextualized var that maps using map and then to LightDark::rgba.

fn map_rgba_into<T>( &self, map: impl FnMut(LightDark) -> LightDark + Send + 'static, ) -> impl Var<T>
where T: VarValue + From<Rgba>,

Gets a contextualized var that maps using map and then into T.

fn shade_fct(&self, fct: impl Into<Factor>) -> impl Var<Rgba>

Gets a contextualized var that maps to LightDark::shade_fct and then to LightDark::rgba.

fn shade(&self, shade: i8) -> impl Var<Rgba>

Gets a contextualized var that maps to LightDark::shade and then to LightDark::rgba. Read more

fn shade_fct_into<T>(&self, fct: impl Into<Factor>) -> impl Var<T>
where T: VarValue + From<Rgba>,

Gets a contextualized var that maps to LightDark::shade_fct and then to LightDark::rgba and then into T.

fn shade_into<T>(&self, shade: i8) -> impl Var<T>
where T: VarValue + From<Rgba>,

Gets a contextualized var that maps to LightDark::shade and then to LightDark::rgba and then into T.

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T, V> VarLayout<T> for V
where T: VarValue, V: Var<T>,

fn layout(&self) -> <T as Layout2d>::Px
where T: Layout2d,

Compute the pixel value in the current LAYOUT context.

fn layout_dft(&self, default: <T as Layout2d>::Px) -> <T as Layout2d>::Px
where T: Layout2d,

Compute the pixel value in the current LAYOUT context with default.

fn layout_x(&self) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context x axis.

fn layout_y(&self) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context y axis.

fn layout_z(&self) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context z axis.

fn layout_dft_x(&self, default: Px) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context x axis with default.

fn layout_dft_y(&self, default: Px) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context y axis with default.

fn layout_dft_z(&self, default: Px) -> Px
where T: Layout1d,

Compute the pixel value in the current LAYOUT context z axis with default.

impl<T, V> VarSubscribe<T> for V
where T: VarValue, V: Var<T>,

fn subscribe_when( &self, op: UpdateOp, widget_id: WidgetId, predicate: impl Fn(&T) -> bool + Send + Sync + 'static, ) -> VarHandle

Register the widget to receive an UpdateOp when this variable is new and the predicate approves the new value. Read more

fn on_pre_new<H>(&self, handler: H) -> VarHandle
where H: AppHandler<OnVarArgs<T>>,

Add a preview handler that is called every time this variable updates, the handler is called before UI update. Read more

fn on_new<H>(&self, handler: H) -> VarHandle
where H: AppHandler<OnVarArgs<T>>,

Add a handler that is called every time this variable updates, the handler is called after UI update. Read more

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> MaybeSendSync for T