Enum style::values::computed::angle::Angle

pub enum Angle {
    Deg(CSSFloat),
    Grad(CSSFloat),
    Rad(CSSFloat),
    Turn(CSSFloat),
}

A computed angle.

Variants

Deg(CSSFloat)

An angle with degree unit.

Grad(CSSFloat)

An angle with gradian unit.

Rad(CSSFloat)

An angle with radian unit.

Turn(CSSFloat)

An angle with turn unit.

Methods

impl Angle

pub fn from_radians(radians: CSSFloat) -> Self

Creates a computed Angle value from a radian amount.

pub fn radians(&self) -> CSSFloat

Returns the amount of radians this angle represents.

pub fn radians64(&self) -> f64

Returns the amount of radians this angle represents as a f64.

Gecko stores angles as singles, but does this computation using doubles. See nsCSSValue::GetAngleValueInRadians. This is significant enough to mess up rounding to the nearest quarter-turn for 225 degrees, for example.

Trait Implementations

impl AnimatedValueAsComputed for ComputedAngle

impl Animate for Angle

fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()>

Animate a value towards another one, given an animation procedure.

impl Clone for Angle

fn clone(&self) -> Angle

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Angle

impl Debug for Angle

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl MallocSizeOf for Angle

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for Angle

fn eq(&self, __arg_0: &Angle) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Angle) -> bool

This method tests for !=.

impl ToCss for Angle

fn to_css<W>(&self, dest: &mut W) -> Result where
    W: Write, 

Serialize self in CSS syntax, writing to dest.

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.

impl PartialOrd for Angle

fn partial_cmp(&self, __arg_0: &Angle) -> Option<Ordering>

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

fn lt(&self, __arg_0: &Angle) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &Angle) -> bool

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

fn gt(&self, __arg_0: &Angle) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &Angle) -> bool

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

impl ToAnimatedZero for Angle

fn to_animated_zero(&self) -> Result<Self, ()>

Returns a value that, when added with an underlying value, will produce the underlying value. This is used for SMIL animation's "by-animation" where SMIL first interpolates from the zero value to the 'by' value, and then adds the result to the underlying value.

impl AsRef<Angle> for Angle

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn as_ref(&self) -> &Self

Performs the conversion.

impl Add for Angle

type Output = Self

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl Zero for Angle

fn zero() -> Self

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

impl ComputeSquaredDistance for Angle

fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()>

Computes the squared distance between two animatable values.

impl AsRef<ComputedAngle> for Angle

fn as_ref(&self) -> &ComputedAngle

Performs the conversion.