/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/DetectorDescription/ExprAlgo/interface/AlgoPos.h

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#ifndef ExprAlgo_AlgoPos_h
#define ExprAlgo_AlgoPos_h

#include <iostream>
#include <vector>
#include <string>

#include "DetectorDescription/Base/interface/DDAlgoPar.h"
#include "DetectorDescription/Base/interface/DDTranslation.h"
#include "DetectorDescription/Base/interface/DDRotationMatrix.h"
//#include "DetectorDescription/Core/src/DDNamedObject.h"


class AlgoImpl;
class AlgoCheck;


class AlgoPos
{
  friend class AlgoImpl;
public:  
  AlgoPos(AlgoCheck * check=0);
  //AlgoPos();
  
  ~AlgoPos();

  void setParameters(int start, int end, int incr,
                     const parS_type &, const parE_type &);
    
  bool go() const;
  
  void next();
    

  DD3Vector translation();
  

  DDRotationMatrix rotation();
  
  int copyno() const;
  
  void stream(std::ostream & os) const;
  

  void registerAlgo(AlgoImpl *);
  
  size_t numRegistered();
  
  int start() const { return start_; }
  int end() const { return end_; }
  int incr() const { return incr_; }
  const parS_type & parS() const { return ParS_; }
  const parE_type & parE() const { return ParE_; }

protected:  

  void terminate();


  void checkTermination();
  

  bool select();
  //bool checkParameters();


  int start_, end_, incr_;
  

  int curr_;
  

  int count_;
  

  parS_type ParS_;
  

  parE_type ParE_;
  
  bool terminate_;
  
  std::string err_;
  
  std::vector<AlgoImpl*> regAlgos_;
  
  AlgoImpl * selAlgo_;
  
  AlgoCheck * checkAlgo_;
  
private:
};
#endif