Import Geant4 11.3.0 source tree

source/visualization/management/include/G4VViewer.hh

@@ -105,9 +105,10 @@ public: // With description
   // It is not yet the end of all drawing; that is signalled by
   // ShowView ().)
 
+  virtual G4bool ReadyToDraw() {return true;}
+
   std::vector<G4ThreeVector> ComputeFlyThrough(G4Vector3D*);
 
-#ifdef G4MULTITHREADED
   // Note: the order of calling of MovingToVisSubThread and SwitchToVisSubThread
   // is undefined, so you may need to implement mutexes to ensure your preferred
   // order - see, e.g., G4OpenGLQtViewer. To summarise, the order of calling is
@@ -120,23 +121,22 @@ public: // With description
   // SwitchToMasterThread
 
   // Called on the master thread before starting the vis sub-thread.
-  virtual void DoneWithMasterThread ();
+  virtual void DoneWithMasterThread () {}
 
   // Called on the master thread after starting the vis sub-thread.
-  virtual void MovingToVisSubThread ();
+  virtual void MovingToVisSubThread () {}
 
   // Called on the vis sub-thread at start of vis sub-thread.
-  virtual void SwitchToVisSubThread ();
+  virtual void SwitchToVisSubThread () {}
 
   // Called on the vis sub-thread when all events have been processed.
-  virtual void DoneWithVisSubThread ();
+  virtual void DoneWithVisSubThread () {}
 
   // Called on the vis sub-thread when all events have been processed.
-  virtual void MovingToMasterThread ();
+  virtual void MovingToMasterThread () {}
   
   // Called on the master thread after the vis sub-thread has terminated.
-  virtual void SwitchToMasterThread ();
-#endif
+  virtual void SwitchToMasterThread () {}
 
   //////////////////////////////////////////////////////////////
   // Stuff for scene tree.