Struct KeyFade 

pub struct KeyFade { /* private fields */ }

👎Deprecated:

ms/wall-clock animation is superseded by tick-driven core::anim; see LPAR-06

Multi-keyframe alpha animation with per-segment easing and looping.

A KeyFade with two keyframes is equivalent to a FadeTransition. With more keyframes you can create complex fade sequences such as pulse, flash, or staged reveal effects.

Implementations

impl KeyFade

pub fn new(alpha: &mut u8) -> Self

Start building a keyframe alpha animation targeting the given value.

Add keyframes with key and then optionally set the loop mode with with_loop.

pub fn key(self, time_ms: u32, alpha: u8, easing: Easing) -> Self

Add a keyframe (builder pattern, chainable).

time_ms is the absolute time from the animation start. easing is the curve applied from this keyframe to the next one (ignored on the last keyframe).

Keyframes must be added in ascending time_ms order.

pub fn with_loop(self, loop_mode: LoopMode) -> Self

Set the loop mode (builder pattern).

pub fn tick(&mut self, delta_ms: u32)

Advance the animation by delta_ms milliseconds.

pub fn finished(&self) -> bool

Returns true once the keyframe animation has finished.