Enum pango::CoverageLevel

source ·
#[non_exhaustive]
pub enum CoverageLevel { None, Fallback, Approximate, Exact, }
Expand description

CoverageLevel is used to indicate how well a font can represent a particular Unicode character for a particular script.

Since 1.44, only None and Exact will be returned.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
§

None

The character is not representable with the font.

§

Fallback

The character is represented in a way that may be comprehensible but is not the correct graphical form. For instance, a Hangul character represented as a a sequence of Jamos, or a Latin transliteration of a Cyrillic word.

§

Approximate

The character is represented as basically the correct graphical form, but with a stylistic variant inappropriate for the current script.

§

Exact

The character is represented as the correct graphical form.

Trait Implementations§

source§

impl Clone for CoverageLevel

source§

fn clone(&self) -> CoverageLevel

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for CoverageLevel

source§

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

Formats the value using the given formatter. Read more
source§

impl From<CoverageLevel> for Value

source§

fn from(v: CoverageLevel) -> Self

Converts to this type from the input type.
source§

impl<'a> FromValue<'a> for CoverageLevel

§

type Checker = GenericValueTypeChecker<CoverageLevel>

Value type checker.
source§

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value. Read more
source§

impl HasParamSpec for CoverageLevel

§

type ParamSpec = ParamSpecEnum

§

type SetValue = CoverageLevel

Preferred value to be used as setter for the associated ParamSpec.
§

type BuilderFn = fn(_: &str, _: CoverageLevel) -> ParamSpecEnumBuilder<'_, CoverageLevel>

source§

fn param_spec_builder() -> Self::BuilderFn

source§

impl Hash for CoverageLevel

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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
source§

impl Ord for CoverageLevel

source§

fn cmp(&self, other: &CoverageLevel) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
source§

impl PartialEq for CoverageLevel

source§

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

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialOrd for CoverageLevel

source§

fn partial_cmp(&self, other: &CoverageLevel) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
source§

impl StaticType for CoverageLevel

source§

fn static_type() -> Type

Returns the type identifier of Self.
source§

impl ToValue for CoverageLevel

source§

fn to_value(&self) -> Value

Convert a value to a Value.
source§

fn value_type(&self) -> Type

Returns the type identifier of self. Read more
source§

impl ValueType for CoverageLevel

§

type Type = CoverageLevel

Type to get the Type from. Read more
source§

impl Copy for CoverageLevel

source§

impl Eq for CoverageLevel

source§

impl StructuralPartialEq for CoverageLevel

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T> IntoClosureReturnValue for T
where T: Into<Value>,

source§

impl<T> Property for T
where T: HasParamSpec,

§

type Value = T

source§

impl<T> PropertyGet for T
where T: HasParamSpec,

§

type Value = T

source§

fn get<R, F>(&self, f: F) -> R
where F: Fn(&<T as PropertyGet>::Value) -> R,

source§

impl<T> StaticTypeExt for T
where T: StaticType,

source§

fn ensure_type()

Ensures that the type has been registered with the type system.
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T> ToSendValue for T
where T: Send + ToValue + ?Sized,

source§

fn to_send_value(&self) -> SendValue

Returns a SendValue clone of self.
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T> TryFromClosureReturnValue for T
where T: for<'a> FromValue<'a> + StaticType + 'static,

source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.