//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// $Id: G4hMultipleScattering.hh,v 1.6 2008/05/09 08:23:44 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02 $
//
// -----------------------------------------------------------------------------
//
// GEANT4 Class header file
//
// File name:     G4hMultipleScattering
//
// Author:        Laszlo Urban
//
// Creation date: 24.10.2006 cloned from G4MultipleScattering by VI
// 
// Modifications:
// 20.03.07 Remove local parameter skin (V.Ivanchenko) 
//
//
//------------------------------------------------------------------------------

// class description
//
//  The class simulates the multiple scattering for any kind
//  of charged particle.
//
// class description - end

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

#ifndef G4hMultipleScattering_h
#define G4hMultipleScattering_h 1

#include "G4VMultipleScattering.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

class G4VMscModel;

class G4hMultipleScattering : public G4VMultipleScattering

{
public:    // with description

  G4hMultipleScattering(const G4String& processName="msc");

  virtual ~G4hMultipleScattering();

  // returns true for charged particles, false otherwise
  G4bool IsApplicable (const G4ParticleDefinition& p);

  // Print few lines of informations about the process: validity range,
  void PrintInfo();

  // geom. step length distribution should be sampled or not
  void Setsamplez(G4bool value) { samplez = value;};

  // to reduce the energy/step dependence
  void Setdtrl(G4double value) { dtrl = value;};

  // 'soften' step limitation above lambdalimit
  void SetLambdalimit(G4double value) { lambdalimit = value;};

  // The function overloads the corresponding function of the base
  // class.It limits the step near to boundaries only
  // and invokes the method GetMscContinuousStepLimit at every step.
  G4double AlongStepGetPhysicalInteractionLength(
                                            const G4Track&,
					    G4double  previousStepSize,
					    G4double  currentMinimalStep,
					    G4double& currentSafety,
					    G4GPILSelection* selection);

protected:

  // This function initialise models
  void InitialiseProcess(const G4ParticleDefinition*);

private:        // data members

  G4VMscModel* mscUrban;

  G4double lambdalimit;
  G4double dtrl;

  G4bool   samplez;
  G4bool   isInitialized;
  G4bool   isIon;

};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

#endif