Struct ShapedSegment 

pub struct ShapedSegment {
    pub font_id: u64,
    pub font_data: Arc<Vec<u8>>,
    pub font_index: u32,
    pub normalized_coords: Vec<i16>,
    pub level: u8,
    pub glyphs: Vec<GlyphPosition>,
    pub width: f32,
}

One maximal (font_id, BiDi level) slice within a shaped run.

Emitted in logical source order so callers can walk the segment list and snap selection ranges at boundaries. Each segment’s glyphs are still in cosmic-text’s visual order - the renderer paints them in that order, while caret/selection math uses GlyphPosition::byte_start / GlyphPosition::byte_end to map back to logical bytes.

Fields

font_id: u64

Opaque font identifier from the shaper’s font database. Two segments with the same font_id resolve through the same font_data so the renderer can cache by id.

font_data: Arc<Vec<u8>>

TTF/OTF bytes of the resolved face for this segment.

font_index: u32

Face index inside the font file.

normalized_coords: Vec<i16>

Normalized variation coordinates of the instance this segment was shaped at, in the face’s axis order, as F2Dot14 raw bits. Empty for a static face, which has one instance and needs none.

A variable face shapes at the instance the authored font-weight selects, and the advances in glyphs come from that instance. The renderer hands these coordinates to the glyph rasterizer so the outlines it paints belong to the same one; without them the outlines come from the face’s default instance and the text pairs one weight’s spacing with another weight’s strokes.

level: u8

BiDi embedding level (Unicode BiDi algorithm). Even = LTR, odd = RTL. From cosmic-text’s LayoutGlyph.level (unicode-bidi crate).

glyphs: Vec<GlyphPosition>

Glyphs belonging to this segment, in cosmic-text’s visual order. The renderer issues one draw_glyphs(&font_data) per segment.

width: f32

Total visual advance of this segment in logical pixels.

Implementations

impl ShapedSegment

pub const fn is_ltr(&self) -> bool

Convenience: even-level = LTR.

pub const fn is_rtl(&self) -> bool

Convenience: odd-level = RTL.

Trait Implementations

impl Clone for ShapedSegment

fn clone(&self) -> ShapedSegment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShapedSegment

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

Formats the value using the given formatter.