transform method

  1. @override
double transform(
  1. Size size,
  2. double pixelOffset
)
override

Calculates the scale to apply based on the intrinsic widget size.

Implementation

@override
double transform(Size size, double pixelOffset) {
  final double longestSide = size.longestSide;
  return 1.0 - (-pixelOffset) / (longestSide / 2);
}