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ImageRegistry

Struct ImageRegistry 

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pub(crate) struct ImageRegistry {
    images: HashMap<u32, Arc<Pixmap>>,
    next_id: u32,
}
Expand description

Registry that maps opaque ImageIds to Pixmap data.

Used by RenderContext to resolve ImageSource::OpaqueId at rasterization time.

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§images: HashMap<u32, Arc<Pixmap>>§next_id: u32

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impl ImageRegistry

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fn register(&mut self, pixmap: Arc<Pixmap>) -> ImageId

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pub(crate) fn register_atlas_page( &mut self, page_index: u32, pixmap: Arc<Pixmap>, )

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pub(crate) fn destroy(&mut self, id: ImageId) -> bool

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pub(crate) fn destroy_atlas_page(&mut self, page_index: u32) -> bool

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fn resolve(&self, id: ImageId) -> Option<Arc<Pixmap>>

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fn clear(&mut self)

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impl Debug for ImageRegistry

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

Formats the value using the given formatter. Read more
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impl Default for ImageRegistry

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fn default() -> ImageRegistry

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

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fn resolve(&self, id: ImageId) -> Option<Arc<Pixmap>>

Resolve an ImageId to its pixmap data. Read more

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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

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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

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

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unsafe fn drop(ptr: usize)

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fn simd_from(_simd: S, value: T) -> T

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fn simd_into(self, simd: S) -> T

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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

Performs the conversion.