Struct FontWeight 

pub struct FontWeight(/* private fields */);

Visual weight class of a font, typically on a scale from 1 to 1000.

The default value is FontWeight::NORMAL or 400.

In variable fonts, this can be controlled with the wght axis. This is a u16 so that it can represent the same range of values as the wght axis.

See https://fonts.google.com/knowledge/glossary/weight

In CSS, this corresponds to the font-weight property.

Implementations

impl FontWeight

pub const THIN: Self

Weight value of 100.

pub const EXTRA_LIGHT: Self

Weight value of 200.

pub const LIGHT: Self

Weight value of 300.

pub const SEMI_LIGHT: Self

Weight value of 350.

pub const NORMAL: Self

Weight value of 400. This is the default value.

pub const MEDIUM: Self

Weight value of 500.

pub const SEMI_BOLD: Self

Weight value of 600.

pub const BOLD: Self

Weight value of 700.

pub const EXTRA_BOLD: Self

Weight value of 800.

pub const BLACK: Self

Weight value of 900.

pub const EXTRA_BLACK: Self

Weight value of 950.

impl FontWeight

pub fn new(weight: u16) -> Self

Creates a new weight attribute with the given value.

pub fn value(self) -> u16

Returns the underlying weight value.

pub fn parse(s: &str) -> Option<Self>

Parses a CSS style font weight attribute.

This function accepts only normal, bold and numeric values.

Examples

assert_eq!(FontWeight::parse("normal"), Some(FontWeight::NORMAL));
assert_eq!(FontWeight::parse("bold"), Some(FontWeight::BOLD));
assert_eq!(FontWeight::parse("850"), Some(FontWeight::new(850)));
assert_eq!(FontWeight::parse("invalid"), None);

Trait Implementations

impl Clone for FontWeight

fn clone(&self) -> FontWeight

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FontWeight

impl Debug for FontWeight

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

Formats the value using the given formatter.

impl Default for FontWeight

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FontWeight

fn deserialize<D: Deserializer<'de>>(de: D) -> Result<FontWeight, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for FontWeight

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

Formats the value using the given formatter.

impl Eq for FontWeight

impl From<FontWeight> for FontWeight

fn from(weight: FontWeight) -> Self

Converts to this type from the input type.

impl Hash for FontWeight

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 FontWeight

fn cmp(&self, other: &FontWeight) -> 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,

Restrict a value to a certain interval.

impl PartialEq for FontWeight

fn eq(&self, other: &FontWeight) -> 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 PartialOrd for FontWeight

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for FontWeight

fn serialize<S: Serializer>(&self, ser: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FontWeight