From 4dae61c17187b046b49011b863ddf1b4d34bc948 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Tue, 4 Dec 2018 19:33:29 +0100
Subject: [PATCH] Ref T442, ATC station list split per suffix

---
 src/blackmisc/aviation/atcstationlist.cpp | 20 ++++++++++++++++++++
 src/blackmisc/aviation/atcstationlist.h   |  5 +++++
 2 files changed, 25 insertions(+)

diff --git a/src/blackmisc/aviation/atcstationlist.cpp b/src/blackmisc/aviation/atcstationlist.cpp
index 87253879f..4d2741163 100644
--- a/src/blackmisc/aviation/atcstationlist.cpp
+++ b/src/blackmisc/aviation/atcstationlist.cpp
@@ -138,5 +138,25 @@ namespace BlackMisc
             stations.sortByAtcSuffixSortOrderAndDistance();
             return stations;
         }
+
+        QHash<QString, CAtcStationList> CAtcStationList::splitPerSuffix(bool sort) const
+        {
+            if (this->isEmpty()) { return QHash<QString, CAtcStationList>(); }
+            const CAtcStationList stations = sort ? this->sortedByAtcSuffixSortOrderAndDistance() : * this;
+
+            QString suffix;
+            QHash<QString, CAtcStationList> split;
+            for (const CAtcStation &s : stations)
+            {
+                const QString currentSuffix = s.getCallsignSuffix();
+                if (suffix != currentSuffix)
+                {
+                    suffix = currentSuffix;
+                    split[currentSuffix] = CAtcStationList();
+                }
+                split[currentSuffix].push_back(s);
+            }
+            return split;
+        }
     } // namespace
 } // namespace
diff --git a/src/blackmisc/aviation/atcstationlist.h b/src/blackmisc/aviation/atcstationlist.h
index 8549c5241..76cb7c28e 100644
--- a/src/blackmisc/aviation/atcstationlist.h
+++ b/src/blackmisc/aviation/atcstationlist.h
@@ -24,6 +24,7 @@
 #include "blackmisc/variant.h"
 
 #include <QMetaType>
+#include <QHash>
 
 namespace BlackMisc
 {
@@ -81,6 +82,10 @@ namespace BlackMisc
 
             //! Sorted by ATC suffix sort order and distance
             CAtcStationList sortedByAtcSuffixSortOrderAndDistance() const;
+
+            //! Split per suffix
+            //! \remark sort can be disabled if already sorted
+            QHash<QString, CAtcStationList> splitPerSuffix(bool sort = true) const;
         };
     } //namespace
 } // namespace