Enum FontStyle 

pub enum FontStyle {
    Normal,
    Italic,
    Oblique(Option<i16>),
}

Visual style or ‘slope’ of a font.

The default value is FontStyle::Normal.

In variable fonts, this can be controlled with the ital and slnt axes for italic and oblique styles, respectively. This uses an f32 for the Oblique variant so so that it can represent the same range of values as the slnt axis.

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

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

Variants

Normal

An upright or “roman” style.

Italic

Generally a slanted style, originally based on semi-cursive forms. This often has a different structure from the normal style.

Oblique(Option<i16>)

Oblique (or slanted) style with an optional angle in degrees times 256, counter-clockwise from the vertical.

To convert Some(angle) to degrees, use degrees = (angle as f32) / 256.0 or FontStyle::oblique_degrees.

Implementations

impl FontStyle

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

Parses a font style from a CSS value.

impl FontStyle

pub const fn oblique_degrees(angle: Option<i16>) -> f32

Convert an Oblique payload to an angle in degrees.

pub fn from_degrees(degrees: f32) -> FontStyle

Creates a new oblique style with angle specified in degrees.

Panics if degrees is not between -90 and 90.

Trait Implementations

impl Clone for FontStyle

fn clone(&self) -> FontStyle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontStyle

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

Formats the value using the given formatter.

impl Default for FontStyle

fn default() -> FontStyle

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FontStyle

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for FontStyle

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

Formats the value using the given formatter.

impl Hash for FontStyle

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

where __H: Hasher,

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 PartialEq for FontStyle

fn eq(&self, other: &FontStyle) -> 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 Serialize for FontStyle

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for FontStyle

impl Eq for FontStyle

impl StructuralPartialEq for FontStyle