Struct style::values::computed::box_::Zoom

#[repr(C)]
pub struct Zoom(ZoomFixedPoint);

The computed zoom property value. We store it as a 16-bit fixed point because we need to store it efficiently in the ComputedStyle representation. The assumption being that zooms over 1000 aren’t quite useful.

Tuple Fields

0: ZoomFixedPoint

Implementations

impl Zoom

pub const ONE: Zoom = _

The value 1. This is by far the most common value.

pub const DOCUMENT: Zoom = _

The document value. This can appear in the computed zoom property value, but not in the effective_zoom field.

pub fn is_one(self) -> bool

Returns whether we’re the number 1.

pub fn is_document(self) -> bool

Returns whether we’re the document keyword.

pub fn inverted(&self) -> Option<Self>

Returns the inverse of our value.

pub fn value(&self) -> f32

Returns the value as a float.

pub fn compute_effective(self, specified: Self) -> Self

Computes the effective zoom for a given new zoom value in rhs.

pub fn zoom(self, value: f32) -> f32

Returns the zoomed value.

pub fn unzoom(self, value: f32) -> f32

Returns the un-zoomed value.

Trait Implementations

impl Clone for Zoom

fn clone(&self) -> Zoom

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ComputeSquaredDistance for Zoom

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

Computes the squared distance between two animatable values.

impl Debug for Zoom

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Zoom

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Zoom

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 MallocSizeOf for Zoom

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 Zoom

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Zoom

fn partial_cmp(&self, other: &Zoom) -> Option<Ordering>

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

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

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

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

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

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

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

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

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

impl Serialize for Zoom

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToAnimatedValue for Zoom

type AnimatedValue = f32

The type of the animated value.

fn to_animated_value(self, _: &Context<'_>) -> Self::AnimatedValue

Converts this value to an animated value.

fn from_animated_value(animated: Self::AnimatedValue) -> Self

Converts back an animated value into a computed value.

impl ToCss for Zoom

fn to_css<W>(&self, dest: &mut CssWriter<'_, 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 ToResolvedValue for Zoom

where ZoomFixedPoint: ToResolvedValue<ResolvedValue = ZoomFixedPoint>,

type ResolvedValue = Zoom

The resolved value type we’re going to be converted to.

fn from_resolved_value(from: Self::ResolvedValue) -> Self

Convert a resolved value to resolved value form.

fn to_resolved_value(self, context: &Context<'_>) -> Self::ResolvedValue

Convert a resolved value to a resolved value.

impl Copy for Zoom

impl StructuralPartialEq for Zoom