Struct FontVariationSettings 

pub struct FontVariationSettings { /* private fields */ }

An immutable, value-equal set of variable-font axis settings in user-space coordinates (e.g. wght=650,wdth=85). This is the public input form; values are normalized against a specific font’s fvar/avar when applied.

Cloning is cheap (one reference count). Variations are stored sorted by axis tag so that equality and hashing are independent of the order they were specified in.

Implementations

impl FontVariationSettings

pub fn empty() -> FontVariationSettings

The empty settings: no axis is varied.

pub fn new(variations: impl IntoIterator<Item = FontVariation>) -> Self

Initializes a new instance of the FontVariationSettings class.

When a tag appears more than once, the last occurrence wins.

Panics when a variation’s value is NaN.

pub fn variations(&self) -> &[FontVariation]

The axis settings, sorted by axis tag.

pub fn is_empty(&self) -> bool

Gets whether no axis is varied.

pub fn try_get_value(&self, tag: OpenTypeTag) -> Option<f64>

Tries to get the user-space value for an axis.

pub fn parse(s: &str) -> Result<FontVariationSettings, FormatError>

Parses a comma-separated list of tag=value pairs, e.g. "wght=650,wdth=85". Values use the invariant culture.

Trait Implementations

impl Clone for FontVariationSettings

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontVariationSettings

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

Formats the value using the given formatter.

impl Default for FontVariationSettings

fn default() -> Self

Returns the “default value” for a type.

impl Display for FontVariationSettings

Returns the settings as a string that round-trips through FontVariationSettings::parse.

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

Formats the value using the given formatter.

impl Eq for FontVariationSettings

impl FromStr for FontVariationSettings

type Err = FormatError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for FontVariationSettings

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 PartialEq for FontVariationSettings

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

Equality operator ==.

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

Inequality operator !=.