ColorInputController class

Reactive controller for managing color input state with color operations.

Extends ValueNotifier to provide state management for color input widgets using ColorDerivative values that support multiple color space representations. Enables programmatic color changes while maintaining color space fidelity.

The controller manages ColorDerivative objects which preserve original color space information (HSV, HSL, RGB) for accurate color manipulations and prevents precision loss during color space conversions.

Example:

final controller = ColorInputController(
  ColorDerivative.fromColor(Colors.blue),
);

// React to changes
controller.addListener(() {
  print('Color changed to: ${controller.value.color}');
});

// Programmatic control
controller.value = ColorDerivative.fromHSV(HSVColor.fromColor(Colors.red));

Inheritance

• Object
• ChangeNotifier
• ValueNotifier<ColorDerivative>
• ColorInputController

Mixed-in types

• ComponentController<ColorDerivative>

Constructors

ColorInputController(ColorDerivative value)

Creates a ColorInputController with the specified initial color.

Properties

color → Color

Gets the current color as a standard Color object.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

hasListeners → bool

Whether any listeners are currently registered.

no setter, inherited

hslColor → HSLColor

Gets the current color as an HSL color representation.

no setter

hsvColor → HSVColor

Gets the current color as an HSV color representation.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value ↔ ColorDerivative

The current value stored in this notifier.

getter/setter pair, inherited

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object changes.

inherited

dispose() → void

Discards any resources used by the object.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyListeners() → void

Call all the registered listeners.

inherited

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that are notified when the object changes.

inherited

setColor(Color color) → void

Sets the color to a new Color value.

setHSLColor(HSLColor hslColor) → void

Sets the color to a new HSL color value.

setHSVColor(HSVColor hsvColor) → void

Sets the color to a new HSV color value.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited