Conversions.h

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// $Id$
//==========================================================================
//  AIDA Detector description implementation for LCD
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DD4hep_COMPACT_CONVERSION_H
#define DD4hep_COMPACT_CONVERSION_H

// C/C++ include files
#include <map>
#include <iostream>

// Framework include files
#include "DD4hep/LCDD.h"

namespace DD4hep {

  namespace XML {
    class Handle_t;
  }


  template <typename T, typename ARG=XML::Handle_t> struct Converter {
    typedef T to_type;
    typedef void* user_param;
    Geometry::LCDD& lcdd;
    user_param param;
    user_param optional;
    Converter(Geometry::LCDD& l) : lcdd(l), param(0), optional(0) { }
    Converter(Geometry::LCDD& l, user_param p) : lcdd(l), param(p), optional(0) { }
    Converter(Geometry::LCDD& l, user_param p, user_param o) : lcdd(l), param(p), optional(o)  { }
    void operator()(ARG handle) const;
    template <typename TYPE> TYPE* _param() const  {    return (TYPE*) param;     }
    template <typename TYPE> TYPE& _object() const {    return *(TYPE*) param;    }
    template <typename TYPE> TYPE* _option() const {    return (TYPE*) optional;  }
  };
} /* End namespace DD4hep           */
#endif    /* DD4hep_COMPACT_CONVERSION_H    */