Struct FontWeight 

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

Visual weight class of a font, typically on a scale from 1.0 to 1000.0.

The default value is FontWeight::NORMAL or 400.0.

In variable fonts, this can be controlled with the wght axis. This is an f32 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: FontWeight

Weight value of 100.

pub const EXTRA_LIGHT: FontWeight

Weight value of 200.

pub const LIGHT: FontWeight

Weight value of 300.

pub const SEMI_LIGHT: FontWeight

Weight value of 350.

pub const NORMAL: FontWeight

Weight value of 400. This is the default value.

pub const MEDIUM: FontWeight

Weight value of 500.

pub const SEMI_BOLD: FontWeight

Weight value of 600.

pub const BOLD: FontWeight

Weight value of 700.

pub const EXTRA_BOLD: FontWeight

Weight value of 800.

pub const BLACK: FontWeight

Weight value of 900.

pub const EXTRA_BLACK: FontWeight

Weight value of 950.

impl FontWeight

pub fn new(weight: f32) -> FontWeight

Creates a new weight attribute with the given value.

pub fn value(self) -> f32

Returns the underlying weight value.

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

Parses a CSS style font weight attribute.

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(850.0)));
assert_eq!(FontWeight::parse("invalid"), None);

impl FontWeight

pub fn from_fontconfig(weight: i32) -> FontWeight

Creates a new weight attribute with the given value from Fontconfig.

The values are determined based on the fonts.conf documentation.

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 Debug for FontWeight

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

Formats the value using the given formatter.

impl Default for FontWeight

fn default() -> FontWeight

Returns the “default value” for a type.

impl Display for FontWeight

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

Formats the value using the given formatter.

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 Copy for FontWeight

impl StructuralPartialEq for FontWeight