Struct OpenTypeFeature 

pub struct OpenTypeFeature {
    pub tag: u32,
    pub value: u32,
}

An OpenType feature to enable during shaping.

Fields

tag: u32

The feature tag (4-byte identifier).

value: u32

The feature value (0 = disable, 1 = enable, higher = alternate index).

Implementations

impl OpenTypeFeature

pub fn new(tag_bytes: [u8; 4], value: u32) -> Self

Create a new OpenType feature from a 4-byte tag.

pub fn liga() -> Self

Enable standard ligatures.

pub fn kern() -> Self

Enable kerning.

pub fn calt() -> Self

Enable contextual alternates.

pub fn dlig() -> Self

Enable discretionary ligatures.

Trait Implementations

impl Clone for OpenTypeFeature

fn clone(&self) -> OpenTypeFeature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OpenTypeFeature

impl Debug for OpenTypeFeature

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

Formats the value using the given formatter.

impl Eq for OpenTypeFeature

impl PartialEq for OpenTypeFeature

fn eq(&self, other: &OpenTypeFeature) -> 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 StructuralPartialEq for OpenTypeFeature