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 // -*- C++ -*-
 #ifndef Herwig_HardProcessAnalysis_H
 #define Herwig_HardProcessAnalysis_H
 //
 // This is the declaration of the HardProcessAnalysis class.
 //
 
 #include "ThePEG/Handlers/AnalysisHandler.h"
 #include "Herwig/Utilities/Histogram.h"
 
 namespace Herwig {
 
 using namespace ThePEG;
 
 /**
  * Here is the documentation of the HardProcessAnalysis class.
  *
  * @see \ref HardProcessAnalysisInterfaces "The interfaces"
  * defined for HardProcessAnalysis.
  */
 class HardProcessAnalysis: public AnalysisHandler {
 
 public:
 
   /**
    * The default constructor.
    */
   HardProcessAnalysis();
 
 public:
 
   /** @name Virtual functions required by the AnalysisHandler class. */
   //@{
   /**
    * Analyze a given Event. Note that a fully generated event
    * may be presented several times, if it has been manipulated in
    * between. The default version of this function will call transform
    * to make a lorentz transformation of the whole event, then extract
    * all final state particles and call analyze(tPVector) of this
    * analysis object and those of all associated analysis objects. The
    * default version will not, however, do anything on events which
    * have not been fully generated, or have been manipulated in any
    * way.
    * @param event pointer to the Event to be analyzed.
    * @param ieve the event number.
    * @param loop the number of times this event has been presented.
    * If negative the event is now fully generated.
    * @param state a number different from zero if the event has been
    * manipulated in some way since it was last presented.
    */
   virtual void analyze(tEventPtr event, long ieve, int loop, int state);
 
   //@}
 
 protected:
 
   /**
    * Initialize this object. Called in the run phase just before
    * a run begins.
    */
   virtual void doinitrun();
 
   /**
    * Finalize this object. Called in the run phase just after a
    * run has ended. Used eg. to write out statistics.
    */
   virtual void dofinish();
 
 
 public:
 
   /** @name Functions used by the persistent I/O system. */
   //@{
   /**
    * Function used to write out object persistently.
    * @param os the persistent output stream written to.
    */
   void persistentOutput(PersistentOStream & os) const;
 
   /**
    * Function used to read in object persistently.
    * @param is the persistent input stream read from.
    * @param version the version number of the object when written.
    */
   void persistentInput(PersistentIStream & is, int version);
   //@}
 
   /**
    * The standard Init function used to initialize the interfaces.
    * Called exactly once for each class by the class description system
    * before the main function starts or
    * when this class is dynamically loaded.
    */
   static void Init();
 
 protected:
 
   /** @name Clone Methods. */
   //@{
   /**
    * Make a simple clone of this object.
    * @return a pointer to the new object.
    */
   virtual IBPtr clone() const;
 
   /** Make a clone of this object, possibly modifying the cloned object
    * to make it sane.
    * @return a pointer to the new object.
    */
   virtual IBPtr fullclone() const;
   //@}
 
 
 // If needed, insert declarations of virtual function defined in the
 // InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
 
 
 private:
 
   /**
    * The assignment operator is private and must never be called.
    * In fact, it should not even be implemented.
    */
   HardProcessAnalysis & operator=(const HardProcessAnalysis &) = delete;
 
   /**
    * Differential information per outgoing parton
    */
   struct Histograms {
 
     /**
      * The constructor
      */
     Histograms() {}
 
     /**
      * The constructor
      */
     explicit Histograms(Energy ECM, unsigned int theNBins);
 
     /**
      * Analyse given momentum
      */
     void fill(const Lorentz5Momentum& p, double weight);
 
     /**
      * Finalize given process id and cross section.
      */
     void finalize(ostream& dat,
           ostream& plot,
           const string& subpro,
           size_t legid,
           double norm,
           bool theUnitWeights);
 
     /**
      * Pt spectrum
      */
     HistogramPtr transverse;
 
     /**
      * Rapidity distribution
      */
     HistogramPtr rapidity;
 
     /**
      * Azimuthal angle distribution
      */
     HistogramPtr phi;
 
   };
 
   /**
    * Outgoing partons and x distributions
    */
   struct AllHistograms {
 
     /**
      * Outgoing partons
      */
     vector<Histograms> outgoing;
 
     /**
      * x1 distribution
      */
     HistogramPtr x1;
 
     /**
      * x2 distribution
      */
     HistogramPtr x2;
 
     /**
      * sqrt(shat) distribution
      */
     HistogramPtr sshat;
 
     /**
      * y distribution
      */
     HistogramPtr rapidity;
 
     /**
      * The sum of weights
      */
     double sumWeights;
 
   };
 
   /**
    * Histograms per subprocess
    */
   map<vector<string>,AllHistograms> histogramData;
 
   /**
    * The total sum of weights
    */
   double sumWeights;
 
   /**
    * Analyze a given final state
    */
   void fill(PPair, ParticleVector, double);
 
   /**
    * The number of bins to use
    */
   unsigned int theNBins;
 
   /**
    * True, if unit weights should be booked
    */
   bool theUnitWeights;
 
   /**
    * True, if subprocesses should be distinguished by initial state
    */
   bool theSplitInitialStates;
 
   /**
    * True, if partons should be handled as jets irrespective of flavour
    */
   bool thePartonsAreJets;
 
 };
 
 }
 
 #endif /* Herwig_HardProcessAnalysis_H */

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