Enum gtk4::FontLevel

#[non_exhaustive]
pub enum FontLevel {
    Family,
    Face,
    Font,
    Features,
}

Available on crate feature v4_10 only.

The level of granularity for the font selection.

Depending on this value, the pango::FontDescription that is returned by FontDialogButton::font_desc() will have more or less fields set.

Variants (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.

Family

Select a font family

Face

Select a font face (i.e. a family and a style)

Font

Select a font (i.e. a face with a size, and possibly font variations)

Features

Select a font and font features

Trait Implementations

impl Clone for FontLevel

fn clone(&self) -> FontLevel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FontLevel

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

Formats the value using the given formatter.

impl From<FontLevel> for Value

fn from(v: FontLevel) -> Self

Converts to this type from the input type.

impl<'a> FromValue<'a> for FontLevel

type Checker = GenericValueTypeChecker<FontLevel>

Value type checker.

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

Get the contained value from a Value.

impl HasParamSpec for FontLevel

type ParamSpec = ParamSpecEnum

type SetValue = FontLevel

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

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

fn param_spec_builder() -> Self::BuilderFn

impl Hash for FontLevel

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

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 Ord for FontLevel

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for FontLevel

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

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

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.

impl PartialOrd for FontLevel

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

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for FontLevel

fn static_type() -> Type

Returns the type identifier of Self.

impl ToValue for FontLevel

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifier of self.

impl ValueType for FontLevel

type Type = FontLevel

Type to get the Type from.

impl Copy for FontLevel

impl Eq for FontLevel

impl StructuralPartialEq for FontLevel