pub struct PositionedGlyph {
pub gid: u16,
pub font_data: Arc<[u8]>,
pub pos: (f32, f32),
pub font_size: f32,
pub advance_x: f32,
pub cluster: u32,
}Expand description
A glyph positioned on the layout canvas.
Fields§
§gid: u16Glyph ID.
font_data: Arc<[u8]>Font data associated with this glyph.
pos: (f32, f32)Position (x, y) in pixels from the top-left origin.
font_size: f32Font size in pixels-per-em used to shape and rasterise this glyph.
Carried per-glyph so that a single line may mix multiple sizes (e.g. superscripts, mixed-style runs) and the rasteriser knows the size for each glyph without re-deriving it from a shared style.
advance_x: f32Horizontal advance in pixels (same unit as pos).
Needed for hit-testing (cursor placement) and for determining a glyph’s
x-extent without referencing the original ShapedRun again.
cluster: u32UTF-8 byte offset of this glyph’s cluster in the source text.
Mirrors ShapedGlyph::cluster. Carried here so that hit-testing,
hanging-punctuation checks, and other post-layout passes can identify
the source codepoint without walking the original ShapedRun list.
Trait Implementations§
Source§impl Clone for PositionedGlyph
impl Clone for PositionedGlyph
Source§fn clone(&self) -> PositionedGlyph
fn clone(&self) -> PositionedGlyph
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read more