Struct Setting

pub struct Setting<T> {
    pub selector: Tag,
    pub value: T,
}

Setting defined by a selector tag and an associated value.

This type is a generic container for properties that can be activated or defined by a (Tag, T) pair where the tag selects the target setting and the generic value of type T specifies the value for that setting.

Usage

Current usage is for specifying variation axis settings (similar to the CSS property font-variation-settings). See VariationSetting.

In the future, this will likely also be used for specifying feature settings (analogous to the CSS property font-feature-settings) for selecting OpenType features.

Fields

selector: Tag

Tag that specifies the target setting.

value: T

The desired value for the setting.

Implementations

impl<T> Setting<T>

pub fn new(selector: Tag, value: T) -> Self

Creates a new setting from the given selector tag and its associated value.

Trait Implementations

impl<T: Clone> Clone for Setting<T>

fn clone(&self) -> Setting<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Setting<T>

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

Formats the value using the given formatter.

impl<T: Copy> From<&(&str, T)> for Setting<T>

fn from(s: &(&str, T)) -> Self

Converts to this type from the input type.

impl<T: Copy> From<&(Tag, T)> for Setting<T>

fn from(s: &(Tag, T)) -> Self

Converts to this type from the input type.

impl<T: Copy> From<&Setting<T>> for Setting<T>

fn from(value: &Setting<T>) -> Self

Converts to this type from the input type.

impl<T> From<(&str, T)> for Setting<T>

fn from(s: (&str, T)) -> Self

Converts to this type from the input type.

impl<T> From<(Tag, T)> for Setting<T>

fn from(s: (Tag, T)) -> Self

Converts to this type from the input type.

impl<T: Ord> Ord for Setting<T>

fn cmp(&self, other: &Setting<T>) -> 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<T: PartialEq> PartialEq for Setting<T>

fn eq(&self, other: &Setting<T>) -> 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<T: PartialOrd> PartialOrd for Setting<T>

fn partial_cmp(&self, other: &Setting<T>) -> 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<T: Copy> Copy for Setting<T>

impl<T: Eq> Eq for Setting<T>

impl<T> StructuralPartialEq for Setting<T>