Struct style::values::specified::calc::CalcLengthOrPercentage

pub struct CalcLengthOrPercentage {
    pub clamping_mode: AllowedNumericType,
    pub absolute: Option<AbsoluteLength>,
    pub vw: Option<CSSFloat>,
    pub vh: Option<CSSFloat>,
    pub vmin: Option<CSSFloat>,
    pub vmax: Option<CSSFloat>,
    pub em: Option<CSSFloat>,
    pub ex: Option<CSSFloat>,
    pub ch: Option<CSSFloat>,
    pub rem: Option<CSSFloat>,
    pub percentage: Option<Percentage>,
}

A struct to hold a simplified <length> or <percentage> expression.

In some cases, e.g. DOMMatrix, we support calc(), but reject all the relative lengths, and to_computed_pixel_length_without_context() handles this case. Therefore, if you want to add a new field, please make sure this function work properly.

Fields

clamping_mode: AllowedNumericType

absolute: Option<AbsoluteLength>

vw: Option<CSSFloat>

vh: Option<CSSFloat>

vmin: Option<CSSFloat>

vmax: Option<CSSFloat>

em: Option<CSSFloat>

ex: Option<CSSFloat>

ch: Option<CSSFloat>

rem: Option<CSSFloat>

percentage: Option<Percentage>

Methods

impl CalcLengthOrPercentage

pub fn to_computed_value_zoomed(
    &self,
    context: &Context,
    base_size: FontBaseSize
) -> CalcLengthOrPercentage

Compute font-size or line-height taking into account text-zoom if necessary.

pub fn to_computed_pixel_length_without_context(&self) -> Result<CSSFloat, ()>

Compute the value into pixel length as CSSFloat without context, so it returns Err(()) if there is any non-absolute unit.

Trait Implementations

impl ToComputedValue for CalcLengthOrPercentage

type ComputedValue = CalcLengthOrPercentage

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

fn to_computed_value(&self, context: &Context) -> CalcLengthOrPercentage

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

fn from_computed_value(computed: &CalcLengthOrPercentage) -> Self

Convert a computed value to specified value form.

impl Clone for CalcLengthOrPercentage

fn clone(&self) -> CalcLengthOrPercentage

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for CalcLengthOrPercentage

impl Debug for CalcLengthOrPercentage

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

Formats the value using the given formatter.

impl Default for CalcLengthOrPercentage

fn default() -> CalcLengthOrPercentage

Returns the "default value" for a type.

impl MallocSizeOf for CalcLengthOrPercentage

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 CalcLengthOrPercentage

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

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

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

This method tests for !=.

impl ToCss for CalcLengthOrPercentage

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

https://drafts.csswg.org/css-values/#calc-serialize

FIXME(emilio): Should this simplify away zeros?

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.