DiagramBase.h

// -*- C++ -*-
//
// DiagramBase.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2007 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_DiagramBase_H
#define ThePEG_DiagramBase_H
// This is the declaration of the DiagramBase class.

#include "ThePEG/Config/ThePEG.h"
#include "ThePEG/PDT/ParticleData.h"
#include "ThePEG/MatrixElement/ColourLines.h"
#include "ThePEG/Handlers/StandardXComb.fh"
#include "DiagramBase.fh"
#include "DiagramBase.xh"

namespace ThePEG {

class DiagramBase: public Base {

public:

  DiagramBase() : theNIncoming(-1), theId(0) {}

  virtual ~DiagramBase();

public:

  virtual tPVector construct(SubProPtr sb, const StandardXComb &,
                             const ColourLines &) const = 0;
  
  int nIncoming() const { return theNIncoming; }

  const cPDVector & partons() const { return thePartons; }

  int id() const { return theId; }

  string getTag() const;

protected:

  void partons(int ninc, const cPDVector & parts, int newId) {
    theNIncoming = ninc;
    thePartons = parts;
    theId = newId;
  }

  bool done() const { return nIncoming() >= 0; }

public:

  void persistentOutput(PersistentOStream & os) const;

  void persistentInput(PersistentIStream & is, int version);

  static void Init();

private:

  int theNIncoming;

  cPDVector thePartons;

  int theId;

private:

  static AbstractClassDescription<DiagramBase> initDiagramBase;

  DiagramBase & operator=(const DiagramBase &);

};

}


namespace ThePEG {

template <>
struct BaseClassTrait<DiagramBase,1>: public ClassTraitsType {
  typedef Base NthBase;
};

template <>
struct ClassTraits<DiagramBase>: public ClassTraitsBase<DiagramBase> {
  static string className() { return "ThePEG::DiagramBase"; }
};

}

#endif /* ThePEG_DiagramBase_H */

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