DiagramFrameClock class final

Demand-driven frame time shared by path effects and custom shape overlays.

The clock runs only while the canvas has an active path animation or an extension retains a DiagramFrameClockLease. Pass it as a painter's repaint to paint every frame it runs.

Implemented types

• Listenable

Constructors

DiagramFrameClock({required ValueListenable<Duration> frames, required DiagramFrameClockLease acquire()})

Properties

elapsed → Duration

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

acquire() → DiagramFrameClockLease

Requests frames from the owner. Canvas clocks reject acquisition after unmount; releasing an earlier lease remains safe and idempotent.

addListener(VoidCallback listener) → void

Register a closure to be called when the object notifies its listeners.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that the object notifies.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited