Enum LengthSpec 

pub enum LengthSpec {
    Pt(f64),
    Relative(f64),
    Em(f64),
    Rem(f64),
}

A length in marquee’s four-way model. See the module docs for what each variant measures against.

Variants

Pt(f64)

Absolute points.

Relative(f64)

Multiplier on the parent element’s value of the same field.

Em(f64)

Multiplier on this element’s own resolved font size.

Rem(f64)

Multiplier on the run’s base font size.

Implementations

impl LengthSpec

pub fn resolve(self, parent_pt: f64, own_size_pt: f64, base_size_pt: f64) -> f64

Resolve to points.

parent_pt is the parent element’s resolved value of the same field, own_size_pt this element’s resolved font size, and base_size_pt the run’s base font size.

pub fn is_absolute(self) -> bool

true when the value doesn’t depend on any inherited context.

Trait Implementations

impl Clone for LengthSpec

fn clone(&self) -> LengthSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LengthSpec

impl Debug for LengthSpec

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

Formats the value using the given formatter.

impl Default for LengthSpec

fn default() -> Self

Relative(1.0) — “whatever the parent has”.

impl From<Length> for LengthSpec

fn from(l: Length) -> Self

Bridge from the theme’s two-variant length: Abs is Pt, and Rel reads as a multiplier on the parent’s same field.

impl PartialEq for LengthSpec

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LengthSpec