Struct WordSubRun 

pub struct WordSubRun {
    pub font: Font,
    pub text: String,
    pub glyphs: Vec<ShapedGlyph>,
    pub advance_pt: f32,
}

One face’s slice of a per-glyph-fallback shaping result. A word shaped through shape_with_fallback produces a Vec<WordSubRun>; each sub-run is self-contained: its text is the source UTF-8 slice covered by exactly this sub-run, its glyphs’ cluster offsets are rebased to the sub-run’s local text (so plan_embedded can build /ToUnicode without knowing about the parent word), and its advance_pt is the sum of per-glyph advances at the requested point size.

Caller emits one PDF TextRun per WordSubRun: same baseline, x-cursor advances by advance_pt between sub-runs: and PDF emit’s existing Tf switch fires naturally on the font change.

Examples

use mos_fonts::{Base14Font, Font, WordSubRun};

let subrun = WordSubRun {
    font: Font::Base14(Base14Font::Helvetica),
    text: "A".to_owned(),
    glyphs: Vec::new(),
    advance_pt: 6.67,
};

assert_eq!(subrun.text, "A");

Fields

font: Font

Which face owns the glyphs in this slice. May be the primary (no fallback was needed for this span) or a fallback face that covered codepoints the primary lacked.

text: String

Source byte slice covered by this sub-run. glyphs’ cluster values are byte offsets into this field, not into the parent word’s text.

glyphs: Vec<ShapedGlyph>

Shaped glyphs in visual order (LTR). Cluster offsets are local to text (rebased from the parent word’s full text). Empty for Base14 sub-runs (Base14 has no glyph stream: PDF emit goes via WinAnsi-byte encoding instead).

advance_pt: f32

Total horizontal advance of this sub-run, in PDF user-space units. Sum of PDF-emittable glyphs[i].advance_units scaled by size_pt / units_per_em.

Trait Implementations

impl Clone for WordSubRun

fn clone(&self) -> WordSubRun

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WordSubRun

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

Formats the value using the given formatter.