Struct Length 

pub struct Length(pub f32);

A length, held in points.

ODF writes a length as a number and a unit, and the unit varies by writer and by locale: the same document carries centimetres in its page layout and points in its font sizes. Everything is converted on the way in so that nothing downstream has to ask which unit it is looking at. A point is the unit a renderer wants, being what a font size is already in.

Tuple Fields

0: f32

Implementations

impl Length

pub const fn points(self) -> f32

Points.

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

Parse a length with its unit, as ODF writes one.

None for anything unreadable, including a bare number: ODF requires a unit on every length, and a number with none is a writer’s mistake whose intended unit cannot be guessed.

pub fn write(self, unit: &str) -> String

Write the length in a unit, as ODF spells one: 2.54cm.

The unit is whichever the attribute carried when it was read, so a document written in centimetres stays in centimetres; anything not an ODF unit is written in centimetres. Four decimals, trailing zeros dropped, which is finer than a hundredth of a point in any unit.

pub fn unit_of(text: &str) -> &str

The unit a written length ends in, for writing it back the same way.

Trait Implementations

impl Clone for Length

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Length

impl Debug for Length

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

Formats the value using the given formatter.

impl PartialEq for Length

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Length

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Length