Struct CustomFontMetrics 

pub struct CustomFontMetrics {
    pub units_per_em: u16,
    pub advance_widths: HashMap<char, u16>,
    pub default_advance: u16,
    pub ascender: i16,
    pub descender: i16,
    pub glyph_ids: HashMap<char, u16>,
}

Parsed metrics from a TrueType/OpenType font via ttf-parser.

Fields

units_per_em: u16

advance_widths: HashMap<char, u16>

default_advance: u16

ascender: i16

descender: i16

glyph_ids: HashMap<char, u16>

Maps characters to their glyph IDs in the original font.

Implementations

impl CustomFontMetrics

pub fn char_width(&self, ch: char, font_size: f64) -> f64

Get the advance width of a character in points.

pub fn from_font_data(data: &[u8]) -> Option<Self>

Parse metrics from font data using ttf-parser.

Trait Implementations

impl Clone for CustomFontMetrics

fn clone(&self) -> CustomFontMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CustomFontMetrics

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

Formats the value using the given formatter.