docs: protected void processIntersectionsSplitHorizontal()
      {
          boolean change;
          do
          {
              Vector<Separator> newsep = new Vector<Separator>(hsep.size());
              change = false;
              for (Separator hs : hsep)
              {
              	boolean split = false;
                  for (Separator vs : vsep)
                  {
                      if (hs.intersects(vs))
                      {
                          Separator nhs = hs.hsplit(vs);
                          newsep.add(hs);
                          if (nhs != null)
                              newsep.add(nhs);
                          split = true;
                          change = true;
                          break; //do not try other vertical seps
                      }
                  }
                  if (!split)
                  	newsep.add(hs);
              }
              hsep = newsep;
          } while (change);
      }