Instance

Struct Instance 

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pub struct Instance<P: Program> { /* private fields */ }
Expand description

A particular instance of a running Program.

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impl<P: Program> Instance<P>

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pub fn new(program: P) -> (Self, Task<P::Message>)

Creates a new Instance of the given Program.

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pub fn title(&self, window: Id) -> String

Returns the current title of the Instance.

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pub fn update(&mut self, message: P::Message) -> Task<P::Message>

Processes the given message and updates the Instance.

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pub fn view(&self, window: Id) -> Element<'_, P::Message, P::Theme, P::Renderer>

Produces the current widget tree of the Instance.

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pub fn subscription(&self) -> Subscription<P::Message>

Returns the current Subscription of the Instance.

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pub fn theme(&self, window: Id) -> Option<P::Theme>

Returns the current theme of the Instance.

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pub fn style(&self, theme: &P::Theme) -> Style

Returns the current theme::Style of the Instance.

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pub fn scale_factor(&self, window: Id) -> f32

Returns the current scale factor of the Instance.

Auto Trait Implementations§

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impl<P> Freeze for Instance<P>
where P: Freeze, <P as Program>::State: Freeze,

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impl<P> RefUnwindSafe for Instance<P>

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impl<P> Send for Instance<P>
where P: Send, <P as Program>::State: Send,

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impl<P> Sync for Instance<P>
where P: Sync, <P as Program>::State: Sync,

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impl<P> Unpin for Instance<P>
where P: Unpin, <P as Program>::State: Unpin,

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impl<P> UnwindSafe for Instance<P>
where P: UnwindSafe, <P as Program>::State: UnwindSafe,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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
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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
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> MaybeClone for T

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impl<T> MaybeSend for T
where T: Send,

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impl<T> MaybeSync for T
where T: Sync,