Import Geant4 0.0.0 source tree

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+// This code implementation is the intellectual property of
+// the RD44 GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: G4NavigationHistory.hh,v 2.0 1998/07/02 17:05:45 gunter Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+// class G4NavigationHistory
+//
+// Responsible for maintenance of the history of the path taken through
+// the geometrical hierarchy. Principally a utility class for use by
+// G4Navigator.
+//
+// History:
+//
+// 25.07.96 P.Kent Initial version. Services derived from
+//                 requirements of G4Navigator.
+
+#ifndef G4NAVIGATIONHISTORY_HH
+#define G4NAVIGATIONHISTORY_HH
+
+#include <assert.h>
+#include "globals.hh"
+
+#include "G4AffineTransform.hh"
+#include "G4VPhysicalVolume.hh"
+#include "G4NavigationLevel.hh"
+
+#include <rw/tvvector.h>
+#include <rw/tpvector.h>
+
+const G4int kHistoryMax=15;	// Default max size of history
+const G4int kHistoryStride=16;   // History increase stride
+
+class ostream;
+
+class G4NavigationHistory
+{
+public:
+  friend ostream& operator << (ostream &os,const G4NavigationHistory &h);
+
+  G4NavigationHistory();
+  G4NavigationHistory(const G4NavigationHistory &h);
+  ~G4NavigationHistory();
+  
+  void Reset();
+  void Clear();
+  
+  void SetFirstEntry(G4VPhysicalVolume* pVol);
+  
+  const G4AffineTransform& GetTopTransform() const; 
+
+  const G4AffineTransform* GetPtrTopTransform() const;
+  G4int GetTopReplicaNo() const;
+  EVolume GetTopVolumeType() const;
+  G4VPhysicalVolume* GetTopVolume() const;
+  
+  G4int GetDepth() const;
+  G4int GetMaxDepth() const;
+  const G4AffineTransform& GetTransform(const G4int n) const;
+
+  G4int GetReplicaNo(const G4int n) const;
+  EVolume GetVolumeType(const G4int n) const;
+  G4VPhysicalVolume* GetVolume(const G4int n) const;
+  
+  void NewLevel(G4VPhysicalVolume *pNewMother,
+		EVolume vType=kNormal,
+		G4int nReplica=-1);
+  void BackLevel();
+  void BackLevel(G4int n);
+  
+  G4NavigationHistory& operator=(const G4NavigationHistory &h);
+
+private:
+  void EnlargeHistory();
+
+// Depth of stack: effectively depth in geometrical tree
+  G4int fStackDepth;
+
+  RWTValVector<G4NavigationLevel>  fNavHistory;
+  // RWTPtrVector<G4NavigationLevel>  fNavHistory;
+
+};
+
+#include "G4NavigationHistory.icc"
+
+#endif