Module curve 

Animation curves.

Every axis of every icon animation is driven by a value in [0, 1] produced by an AnimationCurve. The engine linearly maps this value from the origin to the target coordinate, so overshoot curves (values outside [0, 1]) are permitted.

Two concrete implementations share the trait:

• BuiltinEasing — closed-form easings (Linear, EaseInOut, SineOut, CubicBezier { .. }, …).
• KeyframeCurve — a sorted list of (t, v) pairs plus a KeyframeInterp mode.

Keyframe curves can also be built by sampling a user-supplied function at spec-build time via KeyframeCurve::from_curve_fn or KeyframeCurve::from_motion_fn. The callable is invoked only during construction; the resulting curve is pure data and the tick loop never calls back into user code.

Structs

Keyframe

One entry in a KeyframeCurve.

KeyframeCurve

A sorted, validated list of (t, v) pairs plus an interpolation mode.

MotionContext

Movement metadata handed to motion-aware curve samplers.

Enums

BuiltinEasing

Closed-form easing functions.

Curve

The public curve type used inside every crate::IconAnimationSpec.

KeyframeInterp

How adjacent keyframes are interpolated.

Constants

MAX_SAMPLES

Maximum permissible sample count for a function-generated curve.

MIN_SAMPLES

Minimum permissible sample count for a function-generated curve.

VALUE_CLAMP

Absolute clamp applied to every sampled value in KeyframeCurve::from_curve_fn / KeyframeCurve::from_motion_fn.

Traits

AnimationCurve

Trait implemented by every curve variant.