Struct style::values::generics::NonNegative

#[repr(transparent)]
pub struct NonNegative<T>(pub T);

A wrapper of Non-negative values.

Tuple Fields

0: T

Implementations

impl NonNegative<CSSPixelLength>

pub fn new(px: CSSFloat) -> Self

Create a NonNegativeLength.

pub fn px(&self) -> CSSFloat

Return the pixel value of |NonNegativeLength|.

pub fn clamp(self) -> Self

Ensures it is non negative

impl NonNegative<LengthPercentage>

pub fn is_definitely_zero(&self) -> bool

Returns true if the computed value is absolute 0 or 0%.

pub fn to_used_value(&self, containing_length: Au) -> Au

Returns the used value.

pub fn maybe_to_used_value(&self, containing_length: Option<Au>) -> Option<Au>

Convert the computed value into used value.

impl NonNegative<Percentage>

pub fn hundred() -> Self

100%

impl NonNegative<NumberOrPercentage>

pub fn hundred_percent() -> Self

Returns the 100% value.

impl NonNegative<Length>

pub fn from_px(px_value: CSSFloat) -> Self

Get an absolute length from a px value.

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

Parses a non-negative length, optionally with quirks.

impl NonNegative<LengthPercentage>

pub fn zero_percent() -> Self

Returns a 0% value.

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

Parses a length or a percentage, allowing the unitless length quirk. https://quirks.spec.whatwg.org/#the-unitless-length-quirk

impl NonNegative<Percentage>

pub fn compute(&self) -> ComputedPercentage

Convert to ComputedPercentage, for FontFaceRule size-adjust getter.

impl NonNegative<Number>

pub fn new(val: CSSFloat) -> Self

Returns a new non-negative number with the value val.

pub fn get(&self) -> f32

Returns the numeric value.

impl NonNegative<NumberOrPercentage>

pub fn hundred_percent() -> Self

Returns the 100% value.

pub fn new_number(n: f32) -> Self

Return a particular number.

Trait Implementations

impl<T: Add<Output = T>> Add for NonNegative<T>

type Output = NonNegative<T>

The resulting type after applying the + operator.

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

Performs the + operation.

impl<T> Animate for NonNegative<T>

where T: Animate,

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

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

impl<T: Clone> Clone for NonNegative<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> ComputeSquaredDistance for NonNegative<T>

where T: ComputeSquaredDistance,

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

Computes the squared distance between two animatable values.

impl<T: Debug> Debug for NonNegative<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for NonNegative<T>

where T: Deserialize<'de>,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<NonNegative<CSSPixelLength>> for Au

fn from(non_negative_len: NonNegativeLength) -> Self

Converts to this type from the input type.

impl From<NonNegative<f32>> for CSSFloat

fn from(number: NonNegativeNumber) -> CSSFloat

Converts to this type from the input type.

impl<T: Hash> Hash for NonNegative<T>

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<T> MallocSizeOf for NonNegative<T>

where T: 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<T: PartialEq> PartialEq for NonNegative<T>

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

fn partial_cmp(&self, other: &NonNegative<T>) -> 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<T> Serialize for NonNegative<T>

where T: Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> SpecifiedValueInfo for NonNegative<T>

where T: 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<T> ToAnimatedZero for NonNegative<T>

where T: ToAnimatedZero,

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<T> ToComputedValue for NonNegative<T>

where T: ToComputedValue,

type ComputedValue = NonNegative<<T 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<T> ToCss for NonNegative<T>

where T: ToCss,

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<T> ToResolvedValue for NonNegative<T>

where T: ToResolvedValue,

type ResolvedValue = NonNegative<<T 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<T> ToShmem for NonNegative<T>

where T: ToShmem,

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

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

impl<T: Zero> Zero for NonNegative<T>

fn is_zero(&self) -> bool

Returns whether this value is zero.

fn zero() -> Self

Returns the zero value.

impl<T: Copy> Copy for NonNegative<T>

impl<T> StructuralPartialEq for NonNegative<T>