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/// \file eventgenerator/HepMC/HepMCEx01/src/HepMCG4AsciiReader.cc
/// \brief Implementation of the HepMCG4AsciiReader class
//
//

#include "HepMCG4AsciiReader.hh"
#include "HepMCG4AsciiReaderMessenger.hh"

#include <iostream>
#include <fstream>

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
HepMCG4AsciiReader::HepMCG4AsciiReader()
  :  filename("xxx.dat"), verbose(0)
{
  asciiInput= new HepMC::IO_GenEvent(filename.c_str(), std::ios::in);

  messenger= new HepMCG4AsciiReaderMessenger(this);
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
HepMCG4AsciiReader::~HepMCG4AsciiReader()
{
  delete asciiInput;
  delete messenger;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void HepMCG4AsciiReader::Initialize()
{
  delete asciiInput;

  asciiInput= new HepMC::IO_GenEvent(filename.c_str(), std::ios::in);
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
HepMC::GenEvent* HepMCG4AsciiReader::GenerateHepMCEvent()
{
  HepMC::GenEvent* evt= asciiInput-> read_next_event();
  if(!evt) return 0; // no more event

  if(verbose>0) evt-> print();

  return evt;
}
