Struct TextLine 

pub struct TextLine {
    pub runs: Arc<[Arc<GlyphRun>]>,
    pub glyphs: Arc<[GlyphPosition]>,
    pub clusters: Arc<[TextClusterSpan]>,
    pub width: f32,
    pub offset: f32,
    pub baseline: f32,
    pub start: usize,
    pub caret_end: usize,
    pub end: usize,
}

Fields

runs: Arc<[Arc<GlyphRun>]>

glyphs: Arc<[GlyphPosition]>

clusters: Arc<[TextClusterSpan]>

width: f32

offset: f32

Horizontal alignment offset in text-area coordinates. Glyph and caret x positions already include it; width stays the unshifted advance so extent checks keep working. Consumers mapping absolute x positions must add this to width instead of re-deriving the alignment.

baseline: f32

start: usize

caret_end: usize

End of selectable/caret text on this visual line. This excludes a trailing hard line-break which has no shaped glyph of its own.

end: usize

Implementations

impl TextLine

pub fn selection_spans(&self, start: usize, end: usize) -> Vec<(f32, f32)>

Visual x-intervals covered by a half-open logical byte range on this line. Collapsed and reversed ranges yield nothing by policy; callers pass normalized ranges and never rely on rejection. Caret rendering stays separate: collapsed positions highlight nothing here and resolve through caret stops instead.

Four granularities meet here and are not interchangeable: the range arrives in UTF-8 bytes (clamped to char boundaries upstream, so mid-char bytes never arrive); shaping clusters are the coverage granularity (a range splitting a cluster expands to the whole shaped cluster, since no visual edge exists inside it); visual order comes from the stored spans, never from re-sorting bytes or glyphs downstream. Touching spans merge; genuinely disjoint spans stay separate. An empty line covered by a nonempty range yields its caret point. Join controls are excluded from source coverage without adding caret stops inside the complete shaping cluster.

Trait Implementations

impl Clone for TextLine

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextLine

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

Formats the value using the given formatter.