Enum zng::font::font_features::EastAsianWidth

#[repr(u8)]
pub enum EastAsianWidth {
    Auto = 0,
    Proportional = 1,
    ProportionalAlt = 2,
    ProportionalKana = 3,
    Full = 4,
    Half = 5,
    HalfAlt = 6,
    Third = 7,
    Quarter = 8,
}

The sizing and spacing of figures used for East Asian characters.

Variants

Auto = 0

Uses the font default glyphs and spacing.

Proportional = 1

Uses the set of glyphs designed for proportional spacing.

This corresponds to OpenType pwid feature.

ProportionalAlt = 2

Uses the set of glyphs designed for full-width but re-spaced to take proportional space.

This corresponds to OpenType palt feature.

ProportionalKana = 3

Like Proportional but only affects kana and kana related glyphs.

This corresponds to OpenType pkna feature.

Full = 4

Uses the set of glyphs designed for full-width monospace.

This corresponds to OpenType fwid feature.

Half = 5

Uses the set of glyphs designed for half-width monospace.

This corresponds to OpenType hwid feature.

HalfAlt = 6

Uses the set of glyphs designed for full-width but re-spaced to take half-width monospace.

This corresponds to OpenType halt feature.

Third = 7

Uses the set of glyphs designed for a third-width monospace.

This corresponds to OpenType twid feature.

Quarter = 8

Uses the set of glyphs designed for a quarter-width monospace.

This corresponds to OpenType qwid feature.

Trait Implementations

impl Clone for EastAsianWidth

fn clone(&self) -> EastAsianWidth

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EastAsianWidth

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

Formats the value using the given formatter.

impl Default for EastAsianWidth

fn default() -> EastAsianWidth

EastAsianWidth::Auto

impl FontFeatureExclusiveSetState for EastAsianWidth

fn names() -> &'static [FontFeatureName]

All the names of features, must have more then one name.

fn variant(self) -> Option<u32>

None if Auto or Some(NonZeroUsize) if is a feature.

fn from_variant(v: u32) -> EastAsianWidth

New from feature variant.

fn auto() -> EastAsianWidth

New Auto.

impl From<u8> for EastAsianWidth

fn from(number: u8) -> EastAsianWidth

Converts to this type from the input type.

impl FromPrimitive for EastAsianWidth

type Primitive = u8

fn from_primitive( number: <EastAsianWidth as FromPrimitive>::Primitive, ) -> EastAsianWidth

impl Hash for EastAsianWidth

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for EastAsianWidth

fn eq(&self, other: &EastAsianWidth) -> 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 Copy for EastAsianWidth

impl Eq for EastAsianWidth

impl StructuralPartialEq for EastAsianWidth