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TransitionPattern

frust::motion::patterns

Trait TransitionPattern 

Source 
pub trait TransitionPattern {
    // Required method
    fn resolve(
        &self,
        p: f64,
        reverse: bool,
        size: Size,
    ) -> (PatternLayer, PatternLayer);
}
Expand description

Pure staging math for a keyed child switch: maps a 0.0..=1.0 transition progress onto per-child PatternLayers for the incoming and exiting children. See the module docs for the raw-vs-clamped progress contract.

Object-safe by contract. The trait takes only scalar/Copy arguments and returns a concrete (PatternLayer, PatternLayer), so any future pattern can hold a Box<dyn TransitionPattern> without a signature change — the size parameter is the reserved extension point for a hero-rect-bearing container-transform pattern.

Required Methods§

Source

fn resolve( &self, p: f64, reverse: bool, size: Size, ) -> (PatternLayer, PatternLayer)

Resolve (incoming, exiting) layers at transition progress p (raw — may overshoot for a spring), reverse flipping any directional motion, at container size.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§