pub struct FontArc(_);
Expand description
Font
implementor that wraps another concrete Font + 'static
type storing in an Arc
.
Provides convenient type erasure & cheap clones (particularly for FontVec
).
Example
use ab_glyph::{Font, FontArc};
let font = FontArc::try_from_slice(include_bytes!("../../dev/fonts/Exo2-Light.otf"))?;
assert_eq!(font.glyph_id('s'), ab_glyph::GlyphId(56));
Implementations§
§impl FontArc
impl FontArc
pub fn new<F>(font: F) -> FontArcwhere
F: Font + Send + Sync + 'static,
pub fn new<F>(font: F) -> FontArcwhere F: Font + Send + Sync + 'static,
Example
let font_arc = FontArc::new(font_vec);
pub fn try_from_vec(data: Vec<u8, Global>) -> Result<FontArc, InvalidFont>
pub fn try_from_vec(data: Vec<u8, Global>) -> Result<FontArc, InvalidFont>
pub fn try_from_slice(data: &'static [u8]) -> Result<FontArc, InvalidFont>
pub fn try_from_slice(data: &'static [u8]) -> Result<FontArc, InvalidFont>
Creates an FontArc
from a byte-slice.
Example
let font = FontArc::try_from_slice(include_bytes!("../../dev/fonts/Exo2-Light.otf"))?;
Trait Implementations§
§impl Font for FontArc
impl Font for FontArc
§fn units_per_em(&self) -> Option<f32>
fn units_per_em(&self) -> Option<f32>
Get the size of the font unit Read more
§fn ascent_unscaled(&self) -> f32
fn ascent_unscaled(&self) -> f32
Unscaled glyph ascent. Read more
§fn descent_unscaled(&self) -> f32
fn descent_unscaled(&self) -> f32
Unscaled glyph descent. Read more
§fn line_gap_unscaled(&self) -> f32
fn line_gap_unscaled(&self) -> f32
Unscaled line gap. Read more
§fn h_advance_unscaled(&self, id: GlyphId) -> f32
fn h_advance_unscaled(&self, id: GlyphId) -> f32
Unscaled horizontal advance for a given glyph id. Read more
§fn h_side_bearing_unscaled(&self, id: GlyphId) -> f32
fn h_side_bearing_unscaled(&self, id: GlyphId) -> f32
Unscaled horizontal side bearing for a given glyph id. Read more
§fn v_advance_unscaled(&self, id: GlyphId) -> f32
fn v_advance_unscaled(&self, id: GlyphId) -> f32
Unscaled vertical advance for a given glyph id. Read more
§fn v_side_bearing_unscaled(&self, id: GlyphId) -> f32
fn v_side_bearing_unscaled(&self, id: GlyphId) -> f32
Unscaled vertical side bearing for a given glyph id. Read more
§fn kern_unscaled(&self, first: GlyphId, second: GlyphId) -> f32
fn kern_unscaled(&self, first: GlyphId, second: GlyphId) -> f32
Returns additional unscaled kerning to apply for a particular pair of glyph ids. Read more
§fn outline(&self, glyph: GlyphId) -> Option<Outline>
fn outline(&self, glyph: GlyphId) -> Option<Outline>
Compute unscaled glyph outline curves & bounding box.
§fn glyph_count(&self) -> usize
fn glyph_count(&self) -> usize
The number of glyphs present in this font. Glyph identifiers for this
font will always be in the range
0..self.glyph_count()
§fn codepoint_ids(&self) -> CodepointIdIter<'_> ⓘ
fn codepoint_ids(&self) -> CodepointIdIter<'_> ⓘ
Returns an iterator of all distinct
(GlyphId, char)
pairs. Not ordered. Read more§fn glyph_raster_image(&self, id: GlyphId, size: u16) -> Option<GlyphImage<'_>>
fn glyph_raster_image(&self, id: GlyphId, size: u16) -> Option<GlyphImage<'_>>
Returns a pre-rendered image of the glyph. Read more
§fn height_unscaled(&self) -> f32
fn height_unscaled(&self) -> f32
Unscaled height
ascent - descent
. Read more§fn glyph_bounds(&self, glyph: &Glyph) -> Rectwhere
Self: Sized,
fn glyph_bounds(&self, glyph: &Glyph) -> Rectwhere Self: Sized,
Returns the layout bounds of this glyph. These are different to the outline
px_bounds()
. Read more§fn outline_glyph(&self, glyph: Glyph) -> Option<OutlinedGlyph>where
Self: Sized,
fn outline_glyph(&self, glyph: Glyph) -> Option<OutlinedGlyph>where Self: Sized,
Compute glyph outline ready for drawing.
§fn into_scaled<S>(self, scale: S) -> PxScaleFont<Self>where
S: Into<PxScale>,
Self: Sized,
fn into_scaled<S>(self, scale: S) -> PxScaleFont<Self>where S: Into<PxScale>, Self: Sized,
Move into a
PxScaleFont
associated with the
given pixel scale
.