TextShaper

Struct TextShaper 

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pub struct TextShaper { /* private fields */ }
Expand description

Shaper to shape the text using provided font faces, and will do BIDI reordering before to shape text.

This shaper will cache shaper result for per frame.

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impl TextShaper

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pub fn new(font_db: Rc<RefCell<FontDB>>) -> Self

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pub fn end_frame(&mut self)

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pub fn shape_text( &self, text: &Substr, face_ids: &[ID], direction: TextDirection, ) -> Rc<ShapeResult>

Shape text and return the glyphs, caller should do text reorder before call this method.

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pub fn shape_text_with_fallback( &self, text: &str, dir: TextDirection, face_ids: &[ID], ) -> Option<Vec<Glyph<Em>>>

Directly shape text without bidi reordering.

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pub fn get_from_cache( &self, text: &str, face_ids: &[ID], direction: TextDirection, ) -> Option<Rc<ShapeResult>>

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pub fn font_db(&self) -> &Rc<RefCell<FontDB>>

Trait Implementations§

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impl Clone for TextShaper

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fn clone(&self) -> TextShaper

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V