#ifndef _CES_COMP_HH_
#define _CES_COMP_HH_
/******************************************************************************
 * Ces Comparisons classes header file                                        *
 *                                                                            *
 * Author: Bob Wagner, Argonne CDF Group                                      *
 *         Phone 630-252-6321 (Argonne)  630-840-8436 (Fermilab)              *
 *                                                                            *
 * Description:  Algorithmic function objects that do comparisons of CES      *
 *               quantities.  These are meant to be used with STL algorithms. *
 *                                                                            *
 * Revision History:                                                          *
 *    07-Nov-2000   Bob Wagner   Initial creation                             *
 *    15-Nov-2000   Bob Wagner   Change file name to ces_comp and add         *
 *                               namespace ces_comp usage.  Change class names*
 *                               to give consistency with track_sort and      *
 *                               cpr_comp                                     *
 *    20-Nov-2000   Bob Wagner   Add comparators to find WIRE and STRIP       *
 *                               closest to a local space point               *
 *    21-Nov-2000   Bob Wagner   Add comparators to find WIRE and STRIP       *
 *                               closest to a supplied CdfTrack               *
 *                                                                            *
 *****************************************************************************/

//---------------
// C++ Headers --
//---------------

//-------------------------------
// Collaborating Class Headers --
//-------------------------------
#include "CalorObjects/CesCluster.hh"
#include "CalorObjects/CesClusterColl.hh"
#include "ElectronObjects/CdfEmObject.hh"
#include "ElectronObjects/SimpleExtrapolatedTrack.hh"
#include "StorableContainers/ValueVectorLink.hh"

namespace ces_comp {
  class DecrWireEnergy;
  class IncrWireEnergy;
  class DecrStripEnergy;
  class IncrStripEnergy;
  class DecrWirePointDistance;
  class IncrWirePointDistance;
  class DecrStripPointDistance;
  class IncrStripPointDistance;
  class IncrWireTrackDistance;
  class IncrStripTrackDistance;
}

//*****************************************************************************
// Class Declaration
//*****************************************************************************
class ces_comp::DecrWireEnergy {
public:
  DecrWireEnergy() {}
  DecrWireEnergy(const DecrWireEnergy& right) {}
  ~DecrWireEnergy() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
};

class ces_comp::IncrWireEnergy {
public:
  IncrWireEnergy() {}
  IncrWireEnergy(const IncrWireEnergy& right) {}
  ~IncrWireEnergy() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
};

class ces_comp::DecrStripEnergy {
public:
  DecrStripEnergy() {}
  DecrStripEnergy(const DecrStripEnergy& right) {}
  ~DecrStripEnergy() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
};

class ces_comp::IncrStripEnergy {
public:
  IncrStripEnergy() {}
  IncrStripEnergy(const IncrStripEnergy& right) {}
  ~IncrStripEnergy() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
};

class ces_comp::DecrWirePointDistance {
public:
  DecrWirePointDistance( double localX ) : _localX(localX) {}
  // Use default copy constructor
  ~DecrWirePointDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
  // Default constructor is private to force user to supply a coordinate
  DecrWirePointDistance();

  double   _localX;
};

class ces_comp::IncrWirePointDistance {
public:
  IncrWirePointDistance( double localX ) : _localX(localX) {}
  // Use default copy constructor
  ~IncrWirePointDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
  // Default constructor is private to force user to supply a coordinate
  IncrWirePointDistance();

  double   _localX;
};


class ces_comp::DecrStripPointDistance {
public:
  DecrStripPointDistance( double localZ ) : _localZ(localZ) {}
  // Use default copy constructor
  ~DecrStripPointDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
  // Default constructor is private to force user to supply a coordinate
  DecrStripPointDistance();

  double   _localZ;
};

class ces_comp::IncrStripPointDistance {
public:
  IncrStripPointDistance( double localZ ) : _localZ(localZ) {}
  // Use default copy constructor
  ~IncrStripPointDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 ) const;
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 ) const;

private:
  // Default constructor is private to force user to supply a coordinate
  IncrStripPointDistance();

  double   _localZ;
};


class ces_comp::IncrWireTrackDistance {
public:
  IncrWireTrackDistance( CdfEmObject::Track_link );
  // Use default copy constructor
  ~IncrWireTrackDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 );
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 );

private:
  // Default constructor is private to force user to supply a CdfTrack
  IncrWireTrackDistance();

  double  trackWireDiff( const CesCluster& );

  static const double             _yToleranceCEM;
  static const double             _yFirstExtrapolationMin;
  SimpleExtrapolatedTrack         _track;
};


class ces_comp::IncrStripTrackDistance {
public:
  IncrStripTrackDistance( CdfEmObject::Track_link );
  // Use default copy constructor
  ~IncrStripTrackDistance() {}
  bool operator ()( const CesCluster& t1,
		    const CesCluster& t2 );
  bool operator ()( const ValueVectorLink<CesClusterColl>& t1,
		    const ValueVectorLink<CesClusterColl>& t2 );

private:
  // Default constructor is private to force user to supply a CdfTrack
  IncrStripTrackDistance();

  double  trackStripDiff( const CesCluster& );

  static const double             _yToleranceCEM;
  static const double             _yFirstExtrapolationMin;
  SimpleExtrapolatedTrack         _track;
};


/*===========================================================================*\
 * Inline functions                                                          *
\*===========================================================================*/
#include  "Calor/ces_comp.icc"

/******************************************************************************
 *     ALL DONE                                                               *
 *****************************************************************************/
#endif // _CES_COMP_HH_