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G4StateManager.hh
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1 //
2 // ********************************************************************
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4 // * *
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18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
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24 // ********************************************************************
25 //
26 //
27 //
28 //
29 // ------------------------------------------------------------
30 // GEANT 4 class header file
31 //
32 //
33 // ---------------- G4StateManager ----------------
34 //
35 // Authors: G.Cosmo, M.Asai - November 1996
36 //
37 // -------------------------------------------------------------
38 //
39 // Class Description:
40 //
41 // Class responsible for handling and updating the running state
42 // of the Geant4 application during its different phases.
43 // The class is a singleton, it can be accessed via the public
44 // method G4StateManager::GetStateManager().
45 //
46 // States of Geant4 are defined in G4ApplicationState.
47 
48 // -------------------------------------------------------------
49 
50 #ifndef G4StateManager_h
51 #define G4StateManager_h 1
52 
53 #include <vector>
54 #include "G4Types.hh"
55 #include "G4String.hh"
56 #include "G4ApplicationState.hh"
57 #include "G4VStateDependent.hh"
58 #include "G4VExceptionHandler.hh"
59 
61 {
62 
63  public: // with description
64 
66  // The G4StateManager class is a singleton class and the pointer
67  // to the only one existing object can be obtained by this static
68  // method.
69 
71 
72  const G4ApplicationState& GetCurrentState() const;
73  // Returns the current state
74  const G4ApplicationState& GetPreviousState() const;
75  // Returns the previous state
76  G4bool SetNewState(const G4ApplicationState& requestedState);
77  // Set Geant4 to a new state.
78  // In case the request is irregal, false will be returned
79  // and the state of Geant4 will not be changed.
80  G4bool SetNewState(const G4ApplicationState& requestedState,
81  const char* msg);
82  // Set Geant4 to a new state.
83  // In case the request is irregal, false will be returned
84  // and the state of Geant4 will not be changed.
85  // "msg" is information associating to this state change
86  G4bool RegisterDependent(G4VStateDependent* aDependent,G4bool bottom=false);
87  // Register a concrete class of G4VStateDependent.
88  // Registered concrete classes will be notified via
89  // G4VStateDependent::Notify() method when the state of Geant4 changes.
90  // False will be returned if registration fails.
92  // Remove the registration.
93  // False will be returned if aDependent has not been registered.
95  // Remove the registration.
96  // Removed pointer is returned.
97  G4String GetStateString(const G4ApplicationState& aState) const;
98  // Utility method which returns a string of the state name.
99 
100  inline void SetSuppressAbortion(G4int i);
101  inline G4int GetSuppressAbortion() const;
102  inline const char* GetMessage() const;
103  inline void SetExceptionHandler(G4VExceptionHandler* eh);
105  static void SetVerboseLevel(G4int val);
106 
107  private:
108 
109  G4StateManager();
111  G4StateManager& operator=(const G4StateManager &right);
112  G4bool operator==(const G4StateManager &right) const;
113  G4bool operator!=(const G4StateManager &right) const;
114 
115  private:
116 
120  std::vector<G4VStateDependent*> theDependentsList;
123  const char* msgptr;
126 };
127 
128 #include "G4StateManager.icc"
129 
130 #endif