Struct HeadlessAtlas

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

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A sprite atlas for windows without a GPU. It hands out uniquely identified tiles without uploading any pixels, so glyph, SVG, and image painting can run to completion in tests and headless platforms.

Trait Implementations§

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impl Default for HeadlessAtlas

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl PlatformAtlas for HeadlessAtlas

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fn get_or_insert_with<'a>( &self, key: AtlasKey, build: &mut dyn FnMut() -> Result<Option<(Size<DevicePixels>, Cow<'a, [u8]>)>>, ) -> Result<Option<AtlasTile>>

The builder runs with the atlas locked and must not re-enter the same atlas.

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fn remove(&self, key: &AtlasKey)

Auto Trait Implementations§

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impl UnwindSafe for HeadlessAtlas

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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