Struct ShapingSpan 

pub struct ShapingSpan<'a> {
    pub range: Range<usize>,
    pub font: FontRequest<'a>,
    pub size: f32,
    pub features: &'a [FontFeature],
    pub language: Option<&'a str>,
    pub letter_spacing: Option<f32>,
    pub baseline_shift: f32,
}

A stretch of a paragraph with one font, size and set of shaping settings: a style span of the text. Spans that differ only in what does not change shaping, such as color, are one span, since a ligature such as Arabic lam-alef forms only inside one span.

Fields

range: Range<usize>

The byte range in the text.

font: FontRequest<'a>

The family, weight and style. The weight and style also set the axes of a variable font read without a declaration.

size: f32

The font size in pixels.

features: &'a [FontFeature]

The OpenType features to turn on or off.

language: Option<&'a str>

A BCP 47 language tag such as ja or sr-Latn, which picks the font’s language-specific forms.

letter_spacing: Option<f32>

Extra space after each character in pixels: Compose’s letterSpacing; None takes the font’s default tracking from its trak table, as Apple’s system fonts space their letters by size. Scripts whose letters join take none, as on Android.

baseline_shift: f32

How far above the line’s baseline the span’s baseline sits, in pixels: Compose’s baselineShift times the span’s ascent.

Trait Implementations

impl<'a> Clone for ShapingSpan<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ShapingSpan<'a>

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

Formats the value using the given formatter.