updateCrop method
The min
param is the Rect.topLeft position of the crop area
The max
param is the Rect.bottomRight position of the crop area
Arguments range are Offset.zero to Offset(1.0, 1.0)
.
Implementation
void updateCrop(Offset min, Offset max) {
assert(min < max,
'Minimum crop value ($min) cannot be bigger and maximum crop value ($max)');
_minCrop = min;
_maxCrop = max;
notifyListeners();
}