Struct FontMetrics 

#[non_exhaustive]
pub struct FontMetrics {
    pub units_per_em: u16,
    pub monospace_advance_width: Option<u16>,
    pub ascent: i16,
    pub descent: i16,
}

Basic font metrics.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

units_per_em: u16

Font design units per em. Usually 1,000 (for OpenType fonts) or a power of 2 (e.g., 2,048; for TrueType fonts).

monospace_advance_width: Option<u16>

Horizontal advance width in font design units. Not set for non-monospace fonts.

ascent: i16

Typographic ascent in font design units. Usually positive.

descent: i16

Typographic descent in font design units. Usually negative.

Trait Implementations

impl Clone for FontMetrics

fn clone(&self) -> FontMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontMetrics

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

Formats the value using the given formatter.