private void reset(){
  _handler=null;
  _depth=0;
  _mapping.clear();
  _stateInfos.clear();
  _colorTypes.clear();
  _statePainters.clear();
  _stylePainters.clear();
}

private void reset ( ) { _handler = null ; _depth = 0 ; _mapping . clear ( ) ; _stateInfos . clear ( ) ; _colorTypes . clear ( ) ; _statePainters . clear ( ) ; _stylePainters . clear ( ) ; }
clears our internal state .
