Struct FontMetricsTable 

pub struct FontMetricsTable {
    pub units_per_em: u16,
    pub ascender: i16,
    pub descender: i16,
    pub line_gap: i16,
    pub cap_height: i16,
    pub underline: Option<Rule>,
    pub strikeout: Option<Rule>,
}

Font metrics in font units.

Ascender/descender/line gap follow the OS/2 typographic values when present, hhea otherwise. Descender is negative, per the tables.

Fields

units_per_em: u16

Font design units per em; everything else here is in them.

ascender: i16

Height above the baseline.

descender: i16

Depth below the baseline, negative.

line_gap: i16

Leading the face asks for between lines.

cap_height: i16

Height of a capital above the baseline. Zero when the face declares none, which is what a drop cap has to fall back from.

underline: Option<Rule>

Where the face puts an underline, from its post table. None when the face declares none.

strikeout: Option<Rule>

Where it puts a strikethrough, from its OS/2 table. None when the face declares none.

Trait Implementations

impl Clone for FontMetricsTable

fn clone(&self) -> FontMetricsTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FontMetricsTable

impl Debug for FontMetricsTable

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

Formats the value using the given formatter.

impl PartialEq for FontMetricsTable

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FontMetricsTable

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FontMetricsTable