Struct FontMetrics 

pub struct FontMetrics<'a> {

    pub afm_version: Cow<'a, str>,
    pub font_name: Cow<'a, str>,
    pub font_bbox: BBox,
    pub metrics_sets: Option<MetricsSets>,
    pub full_name: Option<Cow<'a, str>>,
    pub family_name: Option<Cow<'a, str>>,
    pub weight: Option<Cow<'a, str>>,
    pub version: Option<Cow<'a, str>>,
    pub notice: Option<Cow<'a, str>>,
    pub encoding_scheme: Option<Cow<'a, str>>,
    pub character_set: Option<Cow<'a, str>>,
    pub mapping_scheme: Option<u32>,
    pub esc_char: Option<u8>,
    pub characters: Option<u32>,
    pub is_base_font: Option<bool>,
    pub is_cid_font: Option<bool>,
    pub v_vector: Option<Vector>,
    pub is_fixed_v: Option<bool>,
    pub cap_height: Option<f32>,
    pub x_height: Option<f32>,
    pub ascender: Option<f32>,
    pub descender: Option<f32>,
    pub std_hw: Option<f32>,
    pub std_vw: Option<f32>,
    pub directions: [DirectionMetrics; 2],
    pub character_metrics: Cow<'a, [CharacterMetric<'a>]>,
    pub kerning_pairs: Cow<'a, [KerningPair<'a>]>,
    pub track_kerns: Cow<'a, [TrackKern]>,
    pub composites: Cow<'a, [Composite<'a>]>,
    pub source_records: Cow<'a, [SourceRecord<'a>]>,
}

Parsed AFM metric data. Optional authored fields retain absence; accessors resolve defaults.

Fields

afm_version: Cow<'a, str>

AFM format version from the header.

font_name: Cow<'a, str>

Required font program name.

font_bbox: BBox

Required font bounding box.

metrics_sets: Option<MetricsSets>

Declared writing directions; absence implies direction 0.

full_name: Option<Cow<'a, str>>

Full display name.

family_name: Option<Cow<'a, str>>

Typeface family.

weight: Option<Cow<'a, str>>

Weight description.

version: Option<Cow<'a, str>>

Font program version, distinct from the AFM format version.

notice: Option<Cow<'a, str>>

Font notice or copyright text.

encoding_scheme: Option<Cow<'a, str>>

Default encoding description.

character_set: Option<Cow<'a, str>>

Glyph complement description.

mapping_scheme: Option<u32>

Encoding mapping selector.

esc_char: Option<u8>

Escape byte for an escape-mapped font.

characters: Option<u32>

Declared total glyph count, independent of the character-metric section count.

is_base_font: Option<bool>

Authored base-font flag; absence implies true.

is_cid_font: Option<bool>

Authored CID-keyed font flag.

v_vector: Option<Vector>

Global displacement between writing origins.

is_fixed_v: Option<bool>

Authored fixed-origin-vector flag.

cap_height: Option<f32>

Capital height.

x_height: Option<f32>

Lowercase x height.

ascender: Option<f32>

Ascender height.

descender: Option<f32>

Descender depth, typically negative.

std_hw: Option<f32>

Dominant horizontal stem width.

std_vw: Option<f32>

Dominant vertical stem width.

directions: [DirectionMetrics; 2]

Metrics for directions 0 and 1; shared blocks populate both.

character_metrics: Cow<'a, [CharacterMetric<'a>]>

All character records in source order.

kerning_pairs: Cow<'a, [KerningPair<'a>]>

All named/hexadecimal pairs in source order, with direction identity.

track_kerns: Cow<'a, [TrackKern]>

Track-kerning records in source order.

composites: Cow<'a, [Composite<'a>]>

Composite construction recipes in source order.

source_records: Cow<'a, [SourceRecord<'a>]>

Comments and uninterpreted records, including unmodeled multiple-master arrays.

Implementations

impl FontMetrics<'_>

pub const fn direction(&self, direction: Direction) -> &DirectionMetrics

Metrics for one writing direction.

pub fn advance( &self, character: &CharacterMetric<'_>, direction: Direction, ) -> Option<Vector>

Resolve a character advance against the direction’s global CharWidth. Returns None if neither was specified; an explicit zero remains Some.

pub fn vertical_origin(&self, character: &CharacterMetric<'_>) -> Option<Vector>

Resolve a character’s vertical origin vector against the global VVector.

pub fn fixed_v(&self) -> bool

Effective IsFixedV, inferred from global VVector when absent.

pub fn into_owned(self) -> OwnedFontMetrics

Detach all borrowed strings and nested records from the source.

Trait Implementations

impl<'a> Clone for FontMetrics<'a>

fn clone(&self) -> FontMetrics<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for FontMetrics<'a>

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

Formats the value using the given formatter.

impl<'a> Default for FontMetrics<'a>

fn default() -> FontMetrics<'a>

Returns the “default value” for a type.

impl<'a> PartialEq for FontMetrics<'a>

fn eq(&self, other: &FontMetrics<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> StructuralPartialEq for FontMetrics<'a>