Ref T632, use rendered and callsign as tie breaker if distance is equal in snapshot

src/blackmisc/simulation/airspaceaircraftsnapshot.cpp

@@ -35,11 +35,11 @@ namespace BlackMisc
             if (allAircraft.isEmpty()) { return; }
 
             CSimulatedAircraftList aircraft(allAircraft);
-            aircraft.sortByDistanceToReferencePosition();
+            aircraft.sortByDistanceToReferencePositionRenderedCallsign();
-            int numberAll = aircraft.size();
+            const int numberAll = aircraft.size();
             Q_ASSERT_X(numberAll == allAircraft.size(), Q_FUNC_INFO, "aircraft got lost");
-            CSimulatedAircraftList vtolAircraft(aircraft.findByVtol(true));
+            const CSimulatedAircraftList vtolAircraft(aircraft.findByVtol(true));
-            int numberVtol = vtolAircraft.size();
+            const int numberVtol = vtolAircraft.size();
             m_aircraftCallsignsByDistance = aircraft.getCallsigns();
             Q_ASSERT_X(m_aircraftCallsignsByDistance.size() == allAircraft.size(), Q_FUNC_INFO, "redundant or missing callsigns");
             m_vtolAircraftCallsignsByDistance = vtolAircraft.getCallsigns();

src/blackmisc/simulation/airspaceaircraftsnapshot.h

@@ -38,7 +38,7 @@ namespace BlackMisc
             CAirspaceAircraftSnapshot();
 
             //! Constructor
-            CAirspaceAircraftSnapshot(const BlackMisc::Simulation::CSimulatedAircraftList &allAircraft,
+            CAirspaceAircraftSnapshot(const CSimulatedAircraftList &allAircraft,
                                       bool restricted       = false,
                                       bool renderingEnabled = true,
                                       int maxAircraft       = 100,

src/blackmisc/simulation/simulatedaircraftlist.cpp

@@ -266,5 +266,15 @@ namespace BlackMisc
             }
             return c;
         }
+
+        void CSimulatedAircraftList::sortByDistanceToReferencePositionRenderedCallsign()
+        {
+            this->sort([ & ](const CSimulatedAircraft & a, const CSimulatedAircraft & b)
+            {
+                if (a.getRelativeDistance() != b.getRelativeDistance()) { return a.getRelativeDistance() < b.getRelativeDistance(); }
+                if (a.isRendered() != b.isRendered()) { return a.isRendered(); } // get the rendered first
+                return a.getCallsignAsString() < b.getCallsignAsString();
+            });
+        }
     } // namespace
 } // namespace

src/blackmisc/simulation/simulatedaircraftlist.h

@@ -119,6 +119,9 @@ namespace BlackMisc
 
             //! Number of aircraft with parts
             int countAircraftPartsSynchronized() const;
+
+            //! Same as sortByDistanceToReferencePosition, but consider callsign and rendered as secondary criteria
+            void sortByDistanceToReferencePositionRenderedCallsign();
         };
 
         //! Aircraft per callsign