Struct PaintSpan 

pub struct PaintSpan {
    pub char_start: usize,
    pub char_end: usize,
    pub foreground_color: Option<[f32; 4]>,
    pub underline_color: Option<[f32; 4]>,
    pub background_color: Option<[f32; 4]>,
    pub underline_style: Option<UnderlineStyle>,
    pub overline: Option<bool>,
    pub strikeout: Option<bool>,
}

A resolved paint-only color overlay span for one character range of a block.

char_start/char_end are block-relative character offsets — the same space as the post-layout ShapedGlyph::cluster values (see break_into_lines, which converts clusters to char offsets). Each field is None when the overlay does not override it (the base run’s value is kept). Applying paint spans never changes glyph geometry, advances, or line breaks — only color / decoration attributes — so the layout does not reflow.

Fields

char_start: usize

char_end: usize

foreground_color: Option<[f32; 4]>

underline_color: Option<[f32; 4]>

background_color: Option<[f32; 4]>

underline_style: Option<UnderlineStyle>

overline: Option<bool>

strikeout: Option<bool>

Trait Implementations

impl Clone for PaintSpan

fn clone(&self) -> PaintSpan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PaintSpan

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

Formats the value using the given formatter.

impl Default for PaintSpan

fn default() -> PaintSpan

Returns the “default value” for a type.

impl PartialEq for PaintSpan

fn eq(&self, other: &PaintSpan) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for PaintSpan