Some convenience functions ATC station

src/blackmisc/avatcstationlist.cpp

@@ -85,6 +85,17 @@ namespace BlackMisc
             });
         }
 
+        /*
+         * Find by suffix
+         */
+        CAtcStationList CAtcStationList::findBySuffix(const QString &suffix) const
+        {
+            CAtcStationList r;
+            if (suffix.isEmpty()) { return r; }
+            r = this->findBy(&CAtcStation::getCallsignSuffix, suffix);
+            return r;
+        }
+
         /*
          * Distances to own plane
          */
@@ -104,6 +115,28 @@ namespace BlackMisc
             return this->findBy(Predicates::MemberValid(&CAtcStation::getController)).transform(Predicates::MemberTransform(&CAtcStation::getController));
         }
 
+        /*
+         * Suffixes with count
+         */
+        QMap<QString, int> CAtcStationList::getSuffixes() const
+        {
+            QMap<QString, int> r;
+            for (const CAtcStation &station : (*this))
+            {
+                const QString s = station.getCallsignSuffix();
+                if (s.isEmpty()) { continue; }
+                if (r.contains(s))
+                {
+                    r[s] = r[s] + 1;
+                }
+                else
+                {
+                    r.insert(s, 1);
+                }
+            }
+            return r;
+        }
+
         /*
          * Merge with booking, both (online/booking will be updated)
          */