Struct FontMetrics

pub struct FontMetrics {
    pub units_per_em: u16,
    pub advance: f32,
    pub line_height: f32,
    pub descent: f32,
}

Metrics for rendering a monospaced font.

Fields

units_per_em: u16

The number of font units per Em. To scale the font to a specific size, the font metrics are scaled relative to this unit. For example, the line height in pixels for a font at size 12px would be:

line_height / units_per_em * 12

advance: f32

The amount of horizontal advance between characters.

line_height: f32

Height between the baselines of two lines of text.

descent: f32

Space below the text baseline. This is the distance between the text baseline of a line and the top of the next line.

Implementations

impl FontMetrics

pub const DEFAULT: FontMetrics

Font metrics that should work for fonts that are similar to, e.g., Liberation mono, Consolas or Menlo. If this is not accurate, it will be noticeable as overlap or gaps between box drawing characters.

FontMetrics {
    units_per_em: 1000,
    advance: 600.0,
    line_height: 1200.0,
    descent: 300.0,
}

Trait Implementations

impl Clone for FontMetrics

fn clone(&self) -> FontMetrics

Returns a copy 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.

impl Default for FontMetrics

fn default() -> Self

Returns the “default value” for a type.

impl Copy for FontMetrics