@Override
    public Dimension getPreferredSize() {
      final Dimension d = super.getPreferredSize();
      if (ANCHOR_TOP == myAnchor || ANCHOR_BOTTOM == myAnchor) {
        //noinspection SuspiciousNameCombination
        d.height = DIVIDER_WIDTH;
      }
      else {
        d.width = DIVIDER_WIDTH;
      }
      return d;
    }
@Override
    public Dimension getPreferredSize()