Struct FontFeatureSet

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pub struct FontFeatureSet<'a> { /* private fields */ }

Expand description

Represents a set of features in a FontFeatures configuration, the features state is managed together.

Implementations§

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impl FontFeatureSet<'_>

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

Gets the OpenType name of the features.

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pub fn state(&self) -> FontFeatureState

Gets the current state of the features.

Returns Auto if the features are mixed.

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pub fn is_enabled(&self) -> bool

If the features are explicitly enabled.

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pub fn is_disabled(&self) -> bool

If the features are explicitly disabled.

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pub fn is_auto(&self) -> bool

If the features are auto enabled , or in a mixed state.

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pub fn set(self, state: impl Into<FontFeatureState>) -> FontFeatureState

Set the feature state.

Returns the previous state.

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pub fn enable(self)

Enable the feature.

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pub fn disable(self)

Disable the feature.

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pub fn auto(self)

Set the feature to auto.

Trait Implementations§

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impl Debug for FontFeatureSet<'_>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> !UnwindSafe for FontFeatureSet<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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where T: ?Sized,

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Immutably borrows from an owned value. Read more

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fn borrow_mut(&mut self) -> &mut T

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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where T: Any + Send + Sync,

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Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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Returns the argument unchanged.

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where T: Debug + Any + Send + Sync,

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fn as_any(&self) -> &(dyn Any + 'static)

Access any.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn instrument(self, span: Span) -> Instrumented<Self>

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fn in_current_span(self) -> Instrumented<Self>

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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