Struct GlyphRunRenderer 

pub struct GlyphRunRenderer<'a, 'b, Glyphs: Iterator<Item = Glyph> + Clone> {
    prepared_run: PreparedGlyphRun<'a>,
    outline_cache: &'b mut OutlineCache,
    underline_span_cache: &'b mut Vec<(f64, f64)>,
    glyph_iterator: Glyphs,
    atlas_cacher: AtlasCacher<'b>,
}

Helper struct for rendering a prepared glyph run.

Fields

prepared_run: PreparedGlyphRun<'a>

outline_cache: &'b mut OutlineCache

underline_span_cache: &'b mut Vec<(f64, f64)>

glyph_iterator: Glyphs

atlas_cacher: AtlasCacher<'b>

Implementations

impl<'a, 'b, Glyphs: Iterator<Item = Glyph> + Clone> GlyphRunRenderer<'a, 'b, Glyphs>

pub fn fill_glyphs(&mut self, renderer: &mut impl GlyphRenderer)

Fills the glyphs with the current configuration.

pub fn stroke_glyphs(&mut self, renderer: &mut impl GlyphRenderer)

Strokes the glyphs with the current configuration.

fn draw_glyphs(&mut self, style: Style, renderer: &mut impl GlyphRenderer)

Core rendering loop shared by fill_glyphs and stroke_glyphs.

Each glyph is resolved through a priority cascade: COLR > bitmap > outline. The first matching representation wins. Within each branch the atlas cache is checked before falling through to the slow path (rasterization / path construction).

pub fn stroke_adjustment(&self) -> f64

Return the scaling factor that should be applied to the stroke width when stroking this glyph run.

pub fn render_decoration( &mut self, x_range: RangeInclusive<f32>, baseline_y: f32, offset: f32, size: f32, buffer: f32, renderer: &mut impl DrawSink, )

Render a decoration (like an underline) that skips over glyph descenders.

This implements text-decoration-skip-ink-like behavior, where the decoration line is interrupted where it would overlap with glyph outlines.

The x_range specifies the horizontal position of the decoration, and the offset and size specify its vertical position and height (relative to the baseline). The buffer specifies how much horizontal space to leave around each descender.

fn decoration_spans<'c>( &'c mut self, x_range: RangeInclusive<f32>, baseline_y: f32, offset: f32, size: f32, buffer: f32, ) -> impl Iterator<Item = Rect> + 'c

Trait Implementations

impl<'a, 'b, Glyphs: Debug + Iterator<Item = Glyph> + Clone> Debug for GlyphRunRenderer<'a, 'b, Glyphs>

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

Formats the value using the given formatter.