CropController class

A controller to control the functionality of CropImage.

Inheritance

Constructors

CropController({double? aspectRatio, Rect defaultCrop = const Rect.fromLTWH(0, 0, 1, 1), CropRotation rotation = CropRotation.up, double minimumImageSize = 100})
A controller for a CropImage widget.
CropController.fromValue(CropControllerValue value)
Creates a controller for a CropImage widget from an initial CropControllerValue.

Properties

aspectRatio double?
Aspect ratio of the image (width / height).
getter/setter pair
crop Rect
Current crop rectangle of the image (percentage).
getter/setter pair
cropSize Rect
Current crop rectangle of the image (pixels).
getter/setter pair
hashCode int
The hash code for this object.
no setterinherited
hasListeners bool
Whether any listeners are currently registered.
no setterinherited
image Image
no getter
rotation CropRotation
getter/setter pair
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
value CropControllerValue
The current value stored in this notifier.
getter/setter pairinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
croppedBitmap({double? maxSize, FilterQuality quality = FilterQuality.high}) Future<Image>
Returns the bitmap cropped with the current crop rectangle.
croppedImage({FilterQuality quality = FilterQuality.high}) Future<Image>
Returns the image cropped with the current crop rectangle.
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 will throw after the object is disposed).
inherited
getImage() Image?
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
rotateLeft() → void
rotateRight() → void
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited

Static Methods

getCroppedBitmap({double? maxSize, FilterQuality quality = FilterQuality.high, required Rect crop, required CropRotation rotation, required Image image}) Future<Image>
Returns the bitmap cropped with parameters.