tightest static method

Implementation

static Constraints tightest(
    Constraints constraints1, Constraints constraints2) {
  Constraints constraints = Constraints();

  constraints.width = min(constraints1.width ?? double.infinity,
      constraints2.width ?? double.infinity);
  if (constraints.width == double.infinity) constraints.width = null;

  constraints.minWidth = max(constraints1.minWidth ?? double.negativeInfinity,
      constraints2.minWidth ?? double.negativeInfinity);
  if (constraints.minWidth == double.negativeInfinity) {
    constraints.minWidth = null;
  }

  constraints.maxWidth = max(constraints1.maxWidth ?? double.negativeInfinity,
      constraints2.maxWidth ?? double.negativeInfinity);
  if (constraints.maxWidth == double.infinity) constraints.maxWidth = null;

  constraints.height = min(constraints1.height ?? double.infinity,
      constraints2.height ?? double.infinity);
  if (constraints.height == double.infinity) constraints.height = null;

  constraints.minHeight = max(
      constraints1.minHeight ?? double.negativeInfinity,
      constraints2.minHeight ?? double.negativeInfinity);
  if (constraints.minHeight == double.negativeInfinity) {
    constraints.minHeight = null;
  }

  constraints.maxHeight = max(
      constraints1.maxHeight ?? double.negativeInfinity,
      constraints2.maxHeight ?? double.negativeInfinity);
  if (constraints.maxHeight == double.infinity) constraints.maxHeight = null;

  return constraints;
}