static F1<Container, Dimension> formLayouter_rightAligned() {
  ret func(Container parent) -> Dimension {
    L<Component> l = getComponents(parent);
    BitSet bitOnes = layouting_bigOnes(l);
    int nBigOnes = bigOnes.cardinality();
    int mandatoryWidth = totalPreferredWidth(listWithoutIndicesInBitSet(l, bigOnes));
    int gap = 4, outerSpacing = 5;
    Dimension size = parent.getSize();
    int totalSpace = size.width-outerSpacing*2-(l(l)-1)*gap;
    int liberalSpace = totalSpace-mandatoryWidth;
    double perBigOne = doubleRatio(liberalSpace, nBigOnes);
    double x = nBigOnes == 0 ? size.width-outerSpacing-mandatoryWidth : outerSpacing;
    for i over l: {
      Component c = l.get(i);
      bool big = contains(bigOnes, i);
      double w = big ? perBigOne : c.getPreferredSize().width;
      int actualX = iround(x);
      c.setBounds(actualX, 10, iround(x+w)-actualX, size.height-outerSpacing*2);
      x += w+gap;
    }
    ret componentsBoundingSize(parent, outerSpacing);
  };
}

Began life as a copy of #1014730