Struct Measurement 

pub struct Measurement {
    pub value: f64,
    pub unit: MeasurementUnit,
}

A measurement with a unit, parsed from XFA attributes.

XFA Spec 3.3 §2.2 (p36-38) — Measurements: Absolute: in (inches, default), cm, mm, pt (1/72 inch). Relative (XFA 2.8+): em (em width in current font), % (percentage of space width). Note: bare numbers default to inches for dimensions but points for font sizes.

Fields

value: f64

Measurement value.

unit: MeasurementUnit

Measurement unit.

Implementations

impl Measurement

pub fn to_points(&self) -> f64

Convert this measurement to points (the internal unit).

Note: Em and Percent are relative units that depend on the current font context. Here we use a default 12pt font for em and approximate percentage as a fraction of the default space width (~3pt at 12pt).

pub fn parse(s: &str) -> Option<Self>

Parse a measurement string like “10mm”, “1in”, “72pt”, “2.5cm”.

Trait Implementations

impl Clone for Measurement

fn clone(&self) -> Measurement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Measurement

impl Debug for Measurement

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

Formats the value using the given formatter.

impl Default for Measurement

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Measurement

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Measurement