TransformationController class Null safety

A thin wrapper on ValueNotifier whose value is a Matrix4 representing a transformation.

The value defaults to the identity matrix, which corresponds to no transformation.

Constructors

TransformationController([Matrix4? value]): Create an instance of TransformationController. [...]

hashCode → int: The hash code for this object. [...]
read-only, inherited
hasListeners → bool: Whether any listeners are currently registered. [...]
@protected, read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited
value ↔ Matrix4: The current value stored in this notifier. [...]
read / write, inherited

addListener(VoidCallback listener) → void: Register a closure to be called when the object changes. [...]
inherited
dispose() → void: Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener and removeListener will throw after the object is disposed). [...]
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
notifyListeners() → void: Call all the registered listeners. [...]
@protected, @visibleForTesting, inherited
removeListener(VoidCallback listener) → void: Remove a previously registered closure from the list of closures that are notified when the object changes. [...]
inherited
toScene(Offset viewportPoint) → Offset: Return the scene point at the given viewport point. [...]
toString() → String: A string representation of this object. [...]
inherited