Enum LineHeight 

pub enum LineHeight {
    MetricsRelative(f32),
    FontSizeRelative(f32),
    Absolute(f32),
}

Line height: how much vertical space each line of text occupies.

Mirrors parley’s LineHeight semantics (see parley::LineHeight) without leaking the parley type. M3’s type scale specifies line heights in absolute logical pixels (LineHeight::Absolute); LineHeight::FontSizeRelative is the documented M3-friendly choice when a consistent, font-independent ratio is preferred instead.

Variants

MetricsRelative(f32)

A multiple of the font’s own metrics-derived line height (ascender + descender + line gap/leading). 1.0 is the font’s natural line height.

FontSizeRelative(f32)

A multiple of the font size — CSS’s unitless line-height. Useful for consistent line heights across platforms/fonts when using system-defined generic families.

Absolute(f32)

An absolute line height in logical pixels.

Trait Implementations

impl Clone for LineHeight

fn clone(&self) -> LineHeight

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LineHeight

impl Debug for LineHeight

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

Formats the value using the given formatter.

impl Default for LineHeight

fn default() -> LineHeight

Matches parley’s own default: the font’s natural metrics-relative line height.

impl PartialEq for LineHeight

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LineHeight