flipAxisDirection function

AxisDirection flipAxisDirection (AxisDirection axisDirection)

Returns the opposite of the given AxisDirection.

Specifically, returns AxisDirection.up for AxisDirection.down (and vice versa), as well as AxisDirection.left for AxisDirection.right (and vice versa).

See also:

Implementation 

AxisDirection flipAxisDirection(AxisDirection axisDirection) {
  assert(axisDirection != null);
  switch (axisDirection) {
    case AxisDirection.up:
      return AxisDirection.down;
    case AxisDirection.right:
      return AxisDirection.left;
    case AxisDirection.down:
      return AxisDirection.up;
    case AxisDirection.left:
      return AxisDirection.right;
  }
  return null;
}