FontFeatureState

zng_ext_font::font_features

Struct FontFeatureState 

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pub struct FontFeatureState(/* private fields */);
Expand description

State of a font feature.

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impl FontFeatureState

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pub const fn auto() -> Self

Automatic state.

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pub const fn enabled() -> Self

Enabled state.

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pub const fn enabled_alt(alt: NonZeroU32) -> Self

Enabled state with alternative selected.

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pub const fn disabled() -> Self

Disabled state.

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pub fn is_auto(self) -> bool

Is auto.

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pub fn is_enabled(self) -> bool

Is enabled or enabled_alt.

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pub fn is_disabled(self) -> bool

Is disabled.

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pub fn alt(self) -> Option<u32>

Gets the enabled alternative.

Trait Implementations§

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impl Clone for FontFeatureState

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fn clone(&self) -> FontFeatureState

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for FontFeatureState

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

Formats the value using the given formatter. Read more
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impl Default for FontFeatureState

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fn default() -> FontFeatureState

Returns the “default value” for a type. Read more
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impl From<bool> for FontFeatureState

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fn from(enabled: bool) -> Self

Converts to this type from the input type.
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impl From<u32> for FontFeatureState

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fn from(alt: u32) -> Self

0 is disabled, >=1 is enabled with the alt value.

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impl Hash for FontFeatureState

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl IntoVar<FontFeatureState> for bool

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fn into_var(self) -> Var<FontFeatureState>

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impl IntoVar<FontFeatureState> for u32

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fn into_var(self) -> Var<FontFeatureState>

0 is disabled, >=1 is enabled with the alt value.

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impl PartialEq for FontFeatureState

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for FontFeatureState

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impl IntoValue<FontFeatureState> for bool

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impl IntoValue<FontFeatureState> for u32

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impl StructuralPartialEq for FontFeatureState

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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