Struct Hundredths 

pub struct Hundredths(/* private fields */);

A number a presentation value carries, in hundredths — 14 points is 1400, a ratio of 1.3 is 130.

Fixed point rather than an f32 because a Style is stamped on every glyph and compared for run-merging, so the type has to be Eq, and because two spellings of the same number must be the same value: an author’s 14.0pt and the menu’s 14pt are one size, not two runs. Hundredths is more precision than any menu writes and enough for the 13.25pt a fitted theme lands on.

u16, so the largest value is 655.35 — past any type size a sheet of paper holds and any line height a document means. A number above it is not a number this vocabulary carries, and reads as None.

Implementations

impl Hundredths

pub fn from_f32(value: f32) -> Option<Self>

The number value names, rounded to the nearest hundredth. None for anything that is not a positive finite number this can hold — the same answer the parsers give a value outside the grammar.

pub fn as_f32(self) -> f32

The number itself — what a frontend lays out with.

pub const fn hundredths(self) -> u16

The hundredths themselves, for a frontend that would rather do integer arithmetic than divide and multiply back.

Trait Implementations

impl Clone for Hundredths

fn clone(&self) -> Hundredths

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Hundredths

impl Debug for Hundredths

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

Formats the value using the given formatter.

impl Display for Hundredths

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

The shortest decimal that means this number: 14, 13.5, 1.25. What a document is written with, so that a value set twice from the same menu spells the same bytes both times.

impl Eq for Hundredths

impl Ord for Hundredths

fn cmp(&self, other: &Hundredths) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Hundredths

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Hundredths

fn partial_cmp(&self, other: &Hundredths) -> 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 Hundredths