private void debugPrinting() {
    LOG.debug("== showing screen (" + myCurrentIdx + "): ==");
    if (!myChunks.isEmpty()) {
      for (Fragment fragment : myChunks.get(myCurrentIdx)) {
        LOG.debug(fragment.getOrigin().toString() + " from: " + fragment.getList().get(0).getNumber() +
                  " to: " + fragment.getList().get(fragment.getList().size() - 1).getNumber());
      }
    }
    LOG.debug("== end of screen ==");
  }
private void debugPrinting()