margin function

Widget margin(
  1. Widget widget,
  2. Style space
)

Implementation

Widget margin(Widget widget, Style space) {
  double r = (space.m ?? 0) + (space.mx ?? 0) + (space.mr ?? 0);
  double l = (space.m ?? 0) + (space.mx ?? 0) + (space.ml ?? 0);
  double t = (space.m ?? 0) + (space.my ?? 0) + (space.mt ?? 0);
  double b = (space.m ?? 0) + (space.my ?? 0) + (space.mb ?? 0);
  return Container(
    margin: EdgeInsets.fromLTRB(l, t, r, b),
    child: widget,
  );
}