CropController class
A controller to control the functionality of CropImage.
- Inheritance
-
- Object
- ChangeNotifier
- ValueNotifier<
CropControllerValue> - CropController
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.