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: G4NavigationLevel.hh,v 2.0 1998/07/02 17:05:48 gunter Exp $
+// GEANT4 tag $Name: geant4-00 $
+//
+// class G4NavigationLevel
+//
+// Maintains one level of the geometrical hierarchy. A utility class for use 
+//   by G4NavigationHistory.
+//
+// History:
+//
+// 30.09.97 J.Apostolakis Initial version. Services derived from
+//                        requirements of touchables & G4NavigatorHistory.
+
+#ifndef G4NAVIGATIONLEVEL_HH
+#define G4NAVIGATIONLEVEL_HH
+
+// #include <assert.h>
+#include "globals.hh"
+
+#include "G4AffineTransform.hh"
+#include "G4VPhysicalVolume.hh"
+
+#include "G4NavigationLevelRep.hh"
+#include "G4Allocator.hh"
+
+class ostream;
+
+class G4NavigationLevel
+{
+
+ public:
+   G4NavigationLevel(G4VPhysicalVolume*       newPtrPhysVol,
+		     const G4AffineTransform& newT,
+		     EVolume                  newVolTp,
+		     G4int                    newRepNo= -1);
+
+  // As the previous constructor, but instead of giving Transform, give 
+  // the AffineTransform to the level above and the current level's 
+  // Transform relative to that.
+  //
+   G4NavigationLevel(G4VPhysicalVolume*       newPtrPhysVol,
+		     const G4AffineTransform& levelAbove,
+		     const G4AffineTransform& relativeCurrent,
+		     EVolume                  newVolTp,
+		     G4int                    newRepNo= -1);
+
+   G4NavigationLevel();
+   G4NavigationLevel( G4NavigationLevel& );
+
+   ~G4NavigationLevel();
+
+   G4NavigationLevel& operator=(const G4NavigationLevel &right);
+
+   G4VPhysicalVolume*       GetPhysicalVolume() const;
+   const G4AffineTransform* GetTransformPtr() const ;  // New
+   const G4AffineTransform& GetTransform() const ;     // Old
+   //    G4AffineTransform& GetTransform();            // Only temporarily
+   EVolume                  GetVolumeType() const ;
+   G4int                    GetReplicaNo() const ;
+
+   //  To try to resolve the possible problem with returning a reference.
+   const G4AffineTransform* GetPtrTransform() const;
+
+   inline void *operator new(size_t);
+      // Override "new"    to use "G4Allocator".
+   inline void operator delete(void *aTrack);
+      // Override "delete" to use "G4Allocator".
+
+ //  Data members: 
+ // 
+ private:
+   G4NavigationLevelRep*  fLevelRep;
+};
+
+// extern G4Allocator<G4NavigationLevel> aNavigationLevelAllocator;
+
+#include "G4NavigationLevel.icc"
+
+#endif