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Struct GlyphMetrics

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pub struct GlyphMetrics<'a> { /* private fields */ }
Expand description

Glyph advances, side bearings and vertical origins.

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impl<'a> GlyphMetrics<'a>

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pub fn units_per_em(&self) -> u16

Returns the number of font design units per em unit.

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pub fn glyph_count(&self) -> u16

Returns the number of glyphs in the font.

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pub fn has_vertical_metrics(&self) -> bool

Returns true if the font provides canonical vertical glyph metrics.

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pub fn has_variations(&self) -> bool

Returns true if variations are supported.

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pub fn scale(&self, ppem: f32) -> Self

Creates a new set of metrics scaled for the specified pixels per em unit.

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pub fn linear_scale(&self, scale: f32) -> Self

Creates a new set of metrics scaled by the specified factor.

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pub fn advance_width(&self, glyph_id: GlyphId) -> f32

Returns the horizontal advance for the specified glyph.

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pub fn lsb(&self, glyph_id: GlyphId) -> f32

Returns the left side bearing for the specified glyph.

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pub fn advance_height(&self, glyph_id: GlyphId) -> f32

Returns the vertical advance for the specified glyph.

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pub fn tsb(&self, glyph_id: GlyphId) -> f32

Returns the top side bearing for the specified glyph.

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pub fn vertical_origin(&self, glyph_id: GlyphId) -> f32

Returns the vertical origin for the specified glyph id.

Trait Implementations§

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impl<'a> Clone for GlyphMetrics<'a>

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fn clone(&self) -> GlyphMetrics<'a>

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<'a> Copy for GlyphMetrics<'a>

Auto Trait Implementations§

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impl<'a> Freeze for GlyphMetrics<'a>

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impl<'a> RefUnwindSafe for GlyphMetrics<'a>

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impl<'a> Send for GlyphMetrics<'a>

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impl<'a> Sync for GlyphMetrics<'a>

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impl<'a> Unpin for GlyphMetrics<'a>

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impl<'a> UnwindSafe for GlyphMetrics<'a>

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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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.