Struct GlyphMetrics

pub struct GlyphMetrics<'a> {
    font: FontRef<'a>,
    size: Size,
    glyph_count: u32,
    fixed_scale: FixedScaleFactor,
    h_metrics: &'a [LongMetric],
    default_advance_width: u16,
    lsbs: &'a [BigEndian<i16>],
    hvar: Option<Hvar<'a>>,
    gvar: Option<Gvar<'a>>,
    loca_glyf: Option<(Loca<'a>, Glyf<'a>)>,
    coords: &'a [NormalizedCoord],
}

Glyph specific metrics.

Fields

font: FontRef<'a>

size: Size

glyph_count: u32

fixed_scale: FixedScaleFactor

h_metrics: &'a [LongMetric]

default_advance_width: u16

lsbs: &'a [BigEndian<i16>]

hvar: Option<Hvar<'a>>

gvar: Option<Gvar<'a>>

loca_glyf: Option<(Loca<'a>, Glyf<'a>)>

coords: &'a [NormalizedCoord]

Implementations

impl<'a> GlyphMetrics<'a>

pub fn new( font: &FontRef<'a>, size: Size, location: impl Into<LocationRef<'a>>, ) -> Self

Creates new glyph metrics from the given font, size, and location in normalized variation space.

pub fn glyph_count(&self) -> u32

Returns the number of available glyphs in the font.

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

Returns the advance width for the specified glyph.

If normalized coordinates were provided when constructing glyph metrics and an HVAR table is present, applies the appropriate delta.

Returns None if glyph_id >= self.glyph_count() or the underlying font data is invalid.

pub fn left_side_bearing(&self, glyph_id: GlyphId) -> Option<f32>

Returns the left side bearing for the specified glyph.

If normalized coordinates were provided when constructing glyph metrics and an HVAR table is present, applies the appropriate delta.

Returns None if glyph_id >= self.glyph_count() or the underlying font data is invalid.

pub fn bounds(&self, glyph_id: GlyphId) -> Option<BoundingBox>

Returns the bounding box for the specified glyph.

Returns None if glyph_id >= self.glyph_count(), the underlying font data is invalid.

impl GlyphMetrics<'_>

fn metric_deltas_from_gvar(&self, glyph_id: GlyphId) -> Option<[i32; 2]>

fn bounds_from_outline(&self, glyph_id: GlyphId) -> Option<BoundingBox>

Trait Implementations

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

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.