getClip method

Implementation

@override
Path getClip(Size size) {
  var path = Path();

  // Start from the top-left corner
  path.moveTo(0, 20);

  // Top-left corner curve
  const topLeftControlPoint = Offset(0, 0);
  const topLeftEndPoint = Offset(20, 0);
  path.quadraticBezierTo(topLeftControlPoint.dx, topLeftControlPoint.dy,
      topLeftEndPoint.dx, topLeftEndPoint.dy);

  // Draw the top edge straight line after the left curve
  path.lineTo(size.width - 20, 0);

  // Top-right corner curve
  final topRightControlPoint = Offset(size.width, 0);
  final topRightEndPoint = Offset(size.width, 20);
  path.quadraticBezierTo(topRightControlPoint.dx, topRightControlPoint.dy,
      topRightEndPoint.dx, topRightEndPoint.dy);

  // Draw the right edge straight line
  path.lineTo(size.width, size.height);

  // Draw the bottom edge straight line
  path.lineTo(0, size.height);

  // Close the path to form the shape
  path.close();

  return path;
}