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PositionedGlyph

Struct PositionedGlyph 

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pub struct PositionedGlyph {
    pub gid: u16,
    pub font_data: Arc<[u8]>,
    pub pos: (f32, f32),
    pub font_size: f32,
    pub advance_x: f32,
    pub cluster: u32,
}
Expand description

A glyph positioned on the layout canvas.

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§gid: u16

Glyph ID.

§font_data: Arc<[u8]>

Font data associated with this glyph.

§pos: (f32, f32)

Position (x, y) in pixels from the top-left origin.

§font_size: f32

Font size in pixels-per-em used to shape and rasterise this glyph.

Carried per-glyph so that a single line may mix multiple sizes (e.g. superscripts, mixed-style runs) and the rasteriser knows the size for each glyph without re-deriving it from a shared style.

§advance_x: f32

Horizontal advance in pixels (same unit as pos).

Needed for hit-testing (cursor placement) and for determining a glyph’s x-extent without referencing the original ShapedRun again.

§cluster: u32

UTF-8 byte offset of this glyph’s cluster in the source text.

Mirrors ShapedGlyph::cluster. Carried here so that hit-testing, hanging-punctuation checks, and other post-layout passes can identify the source codepoint without walking the original ShapedRun list.

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impl Clone for PositionedGlyph

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fn clone(&self) -> PositionedGlyph

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PositionedGlyph

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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> 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.