refs #242, allows to change FSX cockpit from context

* Data definitions for FSX events
* BCD conversion for COM and transponder
* Update Cockpit method in context
* Renamed setOwnAircraft -> updateOwnAircraftFromSim

src/blacksim/fscommon/bcdconversions.cpp

@@ -0,0 +1,39 @@
+#include "bcdconversions.h"
+
+using namespace BlackMisc::PhysicalQuantities;
+using namespace BlackMisc::Aviation;
+
+
+namespace BlackSim
+{
+    namespace FsCommon
+    {
+
+        quint32 CBcdConversions::comFrequencyToBcdHz(const BlackMisc::PhysicalQuantities::CFrequency &comFrequency)
+        {
+            // FSX documentation is wrong, we need to use kHz + 2 digits, not Hz
+            quint32 f = comFrequency.valueRounded(CFrequencyUnit::kHz(), 0) / 10;
+            f = dec2Bcd(f);
+            return f;
+        }
+
+        quint32 CBcdConversions::transponderCodeToBcd(const BlackMisc::Aviation::CTransponder &transponder)
+        {
+            // FSX documentation is wrong, we need to use kHz + 2 digits, not Hz
+            quint32 t = transponder.getTransponderCode();
+            t = dec2Bcd(t);
+            return t;
+        }
+
+        quint32 CBcdConversions::hornerScheme(quint32 num, quint32 divider, quint32 factor)
+        {
+            quint32 remainder = 0, quotient = 0, result = 0;
+            remainder = num % divider;
+            quotient = num / divider;
+            if (!(quotient == 0 && remainder == 0))
+                result += hornerScheme(quotient, divider, factor) * factor + remainder;
+            return result;
+        }
+
+    } // namespace
+} // namespace

src/blacksim/fscommon/bcdconversions.h

@@ -0,0 +1,42 @@
+#ifndef BLACKSIM_FSCOMMON_BCDCONVERSIONS_H
+#define BLACKSIM_FSCOMMON_BCDCONVERSIONS_H
+
+#include "blackmisc/pqfrequency.h"
+#include "blackmisc/aviotransponder.h"
+#include <QtGlobal>
+
+namespace BlackSim
+{
+    namespace FsCommon
+    {
+
+        /*!
+         * \brief BCD conversions for FS
+         */
+        class CBcdConversions
+        {
+        public:
+            //! BCD -> decimal
+            static quint32 bcd2Dec(quint32 bcdNum) { return hornerScheme(bcdNum, 0x10, 10); }
+
+            //! Decimal -> BCD
+            static quint32 dec2Bcd(quint32 decNum) { return hornerScheme(decNum, 10, 0x10); }
+
+            //! COM Frequency to BCD
+            static quint32 comFrequencyToBcdHz(const BlackMisc::PhysicalQuantities::CFrequency &comFrequency);
+
+            //! Transponder code to BCD
+            static quint32 transponderCodeToBcd(const BlackMisc::Aviation::CTransponder &transponder);
+
+        private:
+            //! Constructor, only static methods
+            CBcdConversions() {}
+
+            //! Horner scheme
+            static quint32 hornerScheme(quint32 num, quint32 divider, quint32 factor);
+        };
+
+    }
+}
+
+#endif // guard