Struct DFont 

pub struct DFont {
    pub backing: Vec<u8>,
    pub location: Vec<VariationSetting>,
    pub normalized_location: Location,
    pub codepoints: HashSet<u32>,
}

A representation of everything we need to know about a font for diffenator purposes

Fields

backing: Vec<u8>

The font binary data

location: Vec<VariationSetting>

The location of the font we are interested in diffing

normalized_location: Location

The normalized location of the font

codepoints: HashSet<u32>

The set of encoded codepoints in the font

Implementations

impl DFont

pub fn new(string: &[u8]) -> Self

Create a new DFont from a byte slice

pub fn normalize_location(&mut self)

Normalize the location

This method must be called after the location is changed. (It’s that or getters and setters, and nobody wants that.)

pub fn set_location(&mut self, variations: &str) -> Result<(), String>

Set the location of the font given a user-specified location string

pub fn instances(&self) -> Vec<String>

The names of the font’s named instances

pub fn set_instance(&mut self, instance: &str) -> Result<(), String>

Set the location of the font to a given named instance

pub fn fontref(&self) -> FontRef<'_>

pub fn family_name(&self) -> String

pub fn style_name(&self) -> String

pub fn axis_info(&self) -> HashMap<String, (f32, f32, f32)>

The axes of the font

Returns a map from axis tag to (min, default, max) values

pub fn supported_scripts(&self) -> HashSet<String>

Returns a list of scripts where the font has at least one encoded character from that script.

pub fn masters(&self) -> Result<Vec<Vec<VariationSetting>>, ReadError>

Returns a list of the master locations in the font

This is derived heuristically from locations of shared tuples in the gvar table. This should work well enough for most “normal” fonts.

Trait Implementations

impl Clone for DFont

fn clone(&self) -> DFont

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DFont

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

Formats the value using the given formatter.