Struct HeadRatio 

pub struct HeadRatio { /* private fields */ }

Ratio of available content budget assigned to the head portion.

Implementations

impl HeadRatio

pub const BALANCED: Self

50/50 balance between head and tail.

pub const HEAD_ONLY: Self

All content budget allocated to the head.

pub const TAIL_ONLY: Self

All content budget allocated to the tail.

pub const fn new(numerator: u32, denominator: u32) -> Self

Construct a ratio from a numerator and denominator.

pub const fn from_percent(percent: u32) -> Self

Construct a ratio from a percentage (0..=100).

pub const fn from_permille(permille: u32) -> Self

Construct a ratio from parts per thousand (0..=1000).

pub fn from_f64(ratio: f64) -> Self

Construct a ratio from a floating point value in [0.0, 1.0].

pub fn compute_head_budget(&self, total_budget: usize) -> usize

Compute the portion of total_budget assigned to the head.

Trait Implementations

impl Clone for HeadRatio

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 HeadRatio

impl Debug for HeadRatio

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

Formats the value using the given formatter.

impl Default for HeadRatio

fn default() -> Self

Returns the “default value” for a type.

impl Eq for HeadRatio

impl From<f64> for HeadRatio

fn from(r: f64) -> Self

Converts to this type from the input type.

impl PartialEq for HeadRatio

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HeadRatio