Import Geant4 9.2.0 source tree

2016-06-09 15:58:43 +02:00
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+//
+// ********************************************************************
+// * 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: G4FieldManagerStore.hh,v 1.3 2008/01/17 09:39:08 gcosmo Exp $
+// GEANT4 tag $Name: geant4-09-02 $
+//
+// class G4FieldManagerStore
+//
+// Class description:
+//
+// Container for all FieldManagers, with functionality derived from
+// std::vector<T>. The class is a `singleton', in that only
+// one can exist, and access is provided via the static function
+// G4FieldManagerStore::GetInstance()
+//
+// All FieldManagers should be registered with G4FieldManagerStore,
+// and removed on their destruction. 
+// Intended principally to enable resetting of 'state' at start of event.
+// The underlying container initially has a capacity of 100.
+//
+// Member data:
+//
+// static G4FieldManagerStore* fgInstance
+//   - Ptr to the single G4FieldManagerStore.
+
+// History:
+// 07.12.07 J.Apostolakis  Initial version
+// --------------------------------------------------------------------
+#ifndef G4FIELDMANAGERSTORE_HH
+#define G4FIELDMANAGERSTORE_HH
+
+#include <vector>
+
+#include "G4FieldManager.hh"
+
+class G4FieldManagerStore : public std::vector<G4FieldManager*>
+{
+  public:  // with description
+
+    static void Register(G4FieldManager* pVolume);
+      // Add the logical volume to the collection.
+    static void DeRegister(G4FieldManager* pVolume);
+      // Remove the logical volume from the collection.
+    static G4FieldManagerStore* GetInstance();
+      // Get a ptr to the unique G4FieldManagerStore, creating it if necessary.
+    static void Clean();
+      // Delete all volumes from the store.
+
+    void ClearAllChordFindersState();
+      // Looping over all field managers, call each one to reset step estimate
+
+    virtual ~G4FieldManagerStore();
+      // Destructor: takes care to delete allocated field managers.
+
+  protected:
+  
+    G4FieldManagerStore();
+
+  private:
+
+    static G4FieldManagerStore* fgInstance;
+    static G4bool locked;
+};
+
+#endif