Struct FontMetrics

Source

pub struct FontMetrics {
    pub ascent: f64,
    pub descent: f64,
    pub cap_height: Option<f64>,
    pub x_height: Option<f64>,
}

Expand description

Vertical font metrics in /1000 em (1000 units-per-em), sourced from the embedded font’s OS/2 / hhea tables via skrifa. ascent is positive (above the baseline); descent is negative (below it). The whole struct is None on a span when no embedded font binary exposes metrics (non-embedded standard-14, CFF, Type1, Type3).

Fields§

§ascent: f64

Ascent above the baseline, in /1000 em.

§descent: f64

Descent below the baseline (negative), in /1000 em.

§cap_height: Option<f64>

Cap height in /1000 em, when present in the font.

§x_height: Option<f64>

x-height in /1000 em, when present in the font.

FontMetrics

Struct FontMetrics Copy item path

Fields§

Trait Implementations§

impl Clone for FontMetrics

fn clone(&self) -> Self

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

impl Copy for FontMetrics

impl Debug for FontMetrics

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

impl Default for FontMetrics

fn default() -> Self

impl PartialEq for FontMetrics

fn eq(&self, other: &Self) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Serialize for FontMetrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

impl StructuralPartialEq for FontMetrics

Auto Trait Implementations§

impl Freeze for FontMetrics

impl RefUnwindSafe for FontMetrics

impl Send for FontMetrics

impl Sync for FontMetrics

impl Unpin for FontMetrics

impl UnsafeUnpin for FontMetrics

impl UnwindSafe for FontMetrics

Blanket Implementations§

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneAny for Twhere T: Any + Clone,

impl<T> CloneToUninit for Twhere T: Clone,

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

impl<T> Downcast for Twhere T: Any,

fn into_any(self: Box<T>) -> Box<dyn Any>

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impl<T> DowncastSend for Twhere T: Any + Send,

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impl<T> ErasedDestructor for Twhere T: 'static,

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

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fn into(self) -> U

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impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

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type Output = T

impl<T> Serialize for Twhere T: Serialize + ?Sized,

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impl<T, S> SimdFrom<T, S> for Twhere S: Simd,

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

Struct FontMetrics

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

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

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneAny for T
where T: Any + Clone,

impl<T> CloneToUninit for T
where T: Clone,

impl<T> Downcast for T
where T: Any,

impl<T> DowncastSend for T
where T: Any + Send,

impl<T> DowncastSync for T
where T: Any + Send + Sync,

impl<T> DynClone for T
where T: Clone,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<R, P> ReadPrimitive<R> for P
where R: Read + ReadEndian<P>, P: Default,

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where T: Serialize + ?Sized,

impl<T, S> SimdFrom<T, S> for T
where S: Simd,

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where S: Simd,

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