Struct ImageCacheItem

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pub struct ImageCacheItem(/* private fields */);

Expand description

Owns an image load and its cached result.

Dropping the entry cancels a pending load. Image caches must remove loaded images from windows before discarding the entry.

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impl ImageCacheItem

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pub fn new(source: &Resource, cx: &mut App) -> Self

Starts loading an image into a new cache entry.

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pub fn get(&self) -> Option<Result<Arc<RenderImage>, ImageCacheError>>

Returns the cached result without subscribing to completion notifications.

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pub fn use_image( &self, window: &Window, ) -> Option<Result<Arc<RenderImage>, ImageCacheError>>

Returns the cached result or subscribes the current view to completion.

Trait Implementations§

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impl Debug for ImageCacheItem

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnsafeUnpin for ImageCacheItem

Blanket Implementations§

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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> Instrument for T

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

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

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fn in_current_span(self) -> Instrumented<Self> ⓘ

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

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impl<T, U> Into 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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