shift method

RRect shift (Offset offset)

Returns a new RRect translated by the given offset.

Implementation 

RRect shift(Offset offset) {
  return new RRect.fromLTRBAndCorners(
    _value[0] + offset.dx,
    _value[1] + offset.dy,
    _value[2] + offset.dx,
    _value[3] + offset.dy,
    topLeft: new Radius.elliptical(
      _value[4],
      _value[5]
    ),
    topRight: new Radius.elliptical(
      _value[6],
      _value[7]
    ),
    bottomRight: new Radius.elliptical(
      _value[8],
      _value[9]
    ),
    bottomLeft: new Radius.elliptical(
      _value[10],
      _value[11]
    )
  );
}