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: G4TouchableHistory.hh,v 2.2 1998/07/19 23:51:39 japost Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+// 
+// class G4TouchableHistory     Paul Kent August 1996
+//
+// Object representing a touchable detector element, and
+// its history in the geomtrical hierarchy, including
+// its net resultant local->global transform
+
+#ifndef G4TOUCHABLEHISTORY_HH
+#define G4TOUCHABLEHISTORY_HH
+
+#include "G4VTouchable.hh"
+
+#include "G4NavigationHistory.hh"
+#include "G4LogicalVolume.hh"
+#include "G4RotationMatrix.hh"
+
+class G4TouchableHistory : public G4VTouchable
+{
+public:
+  G4TouchableHistory(const G4NavigationHistory &history);
+  // The default constructor produces a touchable-history of 
+  //  'zero-depth', ie an "unphysical" and not very unusable one.
+  //  It is for initialisation only .  
+  G4TouchableHistory(); 
+  ~G4TouchableHistory();
+  G4VPhysicalVolume* GetVolume(G4int depth=0) const;
+  G4VSolid* GetSolid(G4int depth=0) const;
+  const G4ThreeVector& GetTranslation(G4int depth=0) const;
+  const G4RotationMatrix*  GetRotation(G4int depth=0) const;
+
+  // New access methods for touchables with history
+  G4int GetReplicaNumber(G4int depth=0) const;
+  G4int GetHistoryDepth()  const;
+  G4int MoveUpHistory( G4int num_levels = 1 );
+  // void  ResetLevel();  // Set the level to the top level.
+
+  // Update methods for touchables with history
+  virtual void  UpdateYourself(     G4VPhysicalVolume*   pPhysVol,
+			      const G4NavigationHistory* history=NULL); 
+
+  // Should this method be "depricated" ?
+  //    it is used now in G4Navigator::LocateGlobalPointAndSetup
+  //
+  const G4NavigationHistory* GetHistory() const;
+
+private:
+  G4int CalculateHistoryIndex(G4int stackDepth) const;
+
+private:
+  G4RotationMatrix frot;
+  G4ThreeVector ftlate;
+  G4NavigationHistory fhistory;
+};
+
+#include "G4TouchableHistory.icc"
+#endif