Type Alias style::values::specified::position::AspectRatio

pub type AspectRatio = AspectRatio<NonNegativeNumber>;

A specified value for the aspect-ratio property.

Aliased Type

struct AspectRatio {
    pub auto: bool,
    pub ratio: PreferredRatio<NonNegative<Number>>,
}

Fields

auto: bool

Specifiy auto or not.

ratio: PreferredRatio<NonNegative<Number>>

The preferred aspect-ratio value.

Implementations

impl AspectRatio

pub fn from_mapped_ratio(w: f32, h: f32) -> Self

Returns Self by a valid ratio.

impl<N> AspectRatio<N>

pub fn auto() -> Self

Returns auto

Trait Implementations

impl<N> Animate for GenericAspectRatio<N>where N: Animate, PreferredRatio<N>: Animate,

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

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

impl<N: Clone> Clone for GenericAspectRatio<N>

fn clone(&self) -> GenericAspectRatio<N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N> ComputeSquaredDistance for GenericAspectRatio<N>where N: ComputeSquaredDistance, PreferredRatio<N>: ComputeSquaredDistance,

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

Computes the squared distance between two animatable values.

impl<N: Debug> Debug for GenericAspectRatio<N>

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

Formats the value using the given formatter.

impl<N> MallocSizeOf for GenericAspectRatio<N>where N: MallocSizeOf,

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 Parse for AspectRatio

fn parse<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't> ) -> Result<Self, ParseError<'i>>

Parse a value of this type.

impl<N: PartialEq> PartialEq<GenericAspectRatio<N>> for GenericAspectRatio<N>

fn eq(&self, other: &GenericAspectRatio<N>) -> 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<N> SpecifiedValueInfo for GenericAspectRatio<N>where N: SpecifiedValueInfo,

const SUPPORTED_TYPES: u8 = _

Supported CssTypes by the given value type.

fn collect_completion_keywords(_f: &mut dyn FnMut(&[&'static str]))

Collect value starting words for the given specified value type. This includes keyword and function names which can appear at the beginning of a value of this type.

impl<N> ToAnimatedZero for AspectRatio<N>

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<N> ToComputedValue for GenericAspectRatio<N>where N: ToComputedValue,

type ComputedValue = GenericAspectRatio<<N as ToComputedValue>::ComputedValue>

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

fn from_computed_value(from: &Self::ComputedValue) -> Self

Convert a computed value to specified value form.

fn to_computed_value(&self, context: &Context<'_>) -> Self::ComputedValue

Convert a specified value to a computed value, using itself and the data inside the Context.

impl<N> ToCss for GenericAspectRatio<N>where N: ToCss, PreferredRatio<N>: ToCss,

fn to_css<W>(&self, dest: &mut CssWriter<'_, W>) -> Resultwhere 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<N> ToResolvedValue for GenericAspectRatio<N>where N: ToResolvedValue,

type ResolvedValue = GenericAspectRatio<<N as ToResolvedValue>::ResolvedValue>

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<N> ToShmem for GenericAspectRatio<N>where N: ToShmem,

fn to_shmem(&self, builder: &mut SharedMemoryBuilder) -> Result<Self>

Clones this value into a form suitable for writing into a SharedMemoryBuilder.

impl<N: Copy> Copy for GenericAspectRatio<N>

impl<N> StructuralPartialEq for GenericAspectRatio<N>