Struct image::animation::Delay

pub struct Delay {
    ratio: Ratio,
}

The delay of a frame relative to the previous one.

Fields

ratio: Ratio

Implementations

impl Delay

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

Create a delay from a ratio of milliseconds.

Examples

use image::Delay;
let delay_10ms = Delay::from_numer_denom_ms(10, 1);

pub fn from_saturating_duration(duration: Duration) -> Self

Convert from a duration, clamped between 0 and an implemented defined maximum.

The maximum is at least i32::MAX milliseconds. It should be noted that the accuracy of the result may be relative and very large delays have a coarse resolution.

Examples

use std::time::Duration;
use image::Delay;

let duration = Duration::from_millis(20);
let delay = Delay::from_saturating_duration(duration);

pub fn numer_denom_ms(self) -> (u32, u32)

The numerator and denominator of the delay in milliseconds.

This is guaranteed to be an exact conversion if the Delay was previously created with the from_numer_denom_ms constructor.

pub(crate) fn from_ratio(ratio: Ratio) -> Self

pub(crate) fn into_ratio(self) -> Ratio

fn closest_bounded_fraction( denom_bound: u32, nom: u32, denom: u32 ) -> (u32, u32)

Given some fraction, compute an approximation with denominator bounded.

Note that denom_bound bounds nominator and denominator of all intermediate approximations and the end result.

Trait Implementations

impl Clone for Delay

fn clone(&self) -> Delay

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Delay

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

Formats the value using the given formatter.

impl From<Delay> for Duration

fn from(delay: Delay) -> Self

Converts to this type from the input type.

impl PartialEq<Delay> for Delay

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<Delay> for Delay

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for Delay

impl Eq for Delay

impl StructuralEq for Delay

impl StructuralPartialEq for Delay