Struct style::values::specified::Number

pub struct Number {
    value: CSSFloat,
    calc_clamping_mode: Option<AllowedNumericType>,
}

A CSS <number> specified value.

https://drafts.csswg.org/css-values-3/#number-value

Fields

value: CSSFloat

The numeric value itself.

calc_clamping_mode: Option<AllowedNumericType>

If this number came from a calc() expression, this tells how clamping should be done on the value.

Implementations

impl Number

fn new_with_clamping_mode( value: CSSFloat, calc_clamping_mode: Option<AllowedNumericType> ) -> Self

Returns a new number with the value val.

pub fn to_percentage(&self) -> Percentage

Returns this percentage as a number.

pub fn new(val: CSSFloat) -> Self

Returns a new number with the value val.

pub fn was_calc(&self) -> bool

Returns whether this number came from a calc() expression.

pub fn get(&self) -> f32

Returns the numeric value, clamped if needed.

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

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

pub fn clamp_to_one(self) -> Self

Clamp to 1.0 if the value is over 1.0.

Trait Implementations

impl Add<Number> for Number

type Output = Number

The resulting type after applying the + operator.

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

Performs the + operation.

impl Clone for Number

fn clone(&self) -> Number

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Number

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

Formats the value using the given formatter.

impl From<Number> for f32

fn from(n: Number) -> Self

Converts to this type from the input type.

impl From<Number> for f64

fn from(n: Number) -> Self

Converts to this type from the input type.

impl MallocSizeOf for Number

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 Number

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

Parse a value of this type.

impl PartialEq<Number> for Number

fn eq(&self, other: &Number) -> 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<Number> for Number

fn partial_cmp(&self, other: &Number) -> 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 SpecifiedValueInfo for Number

const SUPPORTED_TYPES: u8 = 0u8

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 ToComputedValue for Number

type ComputedValue = f32

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

fn to_computed_value(&self, _: &Context<'_>) -> CSSFloat

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

fn from_computed_value(computed: &CSSFloat) -> Self

Convert a computed value to specified value form.

impl ToCss for Number

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 ToShmem for Number

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

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

impl Zero for Number

fn zero() -> Self

Returns the zero value.

fn is_zero(&self) -> bool

Returns whether this value is zero.

impl Copy for Number