Struct wr_glyph_rasterizer::rasterizer::FontInstanceMap

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pub struct FontInstanceMap(Arc<RwLock<FastHashMap<FontInstanceKey, Arc<BaseFontInstance>>>>);
Expand description

A map of font instance data accessed concurrently from multiple threads.

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§0: Arc<RwLock<FastHashMap<FontInstanceKey, Arc<BaseFontInstance>>>>

Implementations§

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impl FontInstanceMap

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pub fn new() -> Self

Creates an empty shared map.

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pub fn lock( &self, ) -> RwLockReadGuard<'_, FastHashMap<FontInstanceKey, Arc<BaseFontInstance>>>

Acquires a read lock on the shared map.

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fn lock_mut( &mut self, ) -> RwLockWriteGuard<'_, FastHashMap<FontInstanceKey, Arc<BaseFontInstance>>>

Acquires a read lock on the shared map.

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pub fn clear(&mut self)

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pub fn get_font_instance_data( &self, key: FontInstanceKey, ) -> Option<FontInstanceData>

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pub fn get_font_instance( &self, instance_key: FontInstanceKey, ) -> Option<Arc<BaseFontInstance>>

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pub fn add_font_instance(&mut self, instance: Arc<BaseFontInstance>)

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pub fn delete_font_instance(&mut self, instance_key: FontInstanceKey)

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pub fn delete_font_instances(&mut self, keys: &[FontInstanceKey])

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pub fn clear_namespace(&mut self, namespace: IdNamespace)

Trait Implementations§

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impl Clone for FontInstanceMap

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fn clone(&self) -> FontInstanceMap

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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

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fn type_id(&self) -> TypeId

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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
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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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where F: FnOnce(&Self) -> bool,

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impl<T> Pointable for T

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const ALIGN: usize = _

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

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unsafe fn drop(ptr: usize)

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

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

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Performs the conversion.