Ref T709, added Qt free base class for settings which can be used on XSwiftBus and swift side

This has to be "Qt free"

src/blackmisc/simulation/settings/xswiftbussettingsqtfree.h

@@ -0,0 +1,77 @@
+/* Copyright (C) 2019
+ * swift Project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
+ * or distributed except according to the terms contained in the LICENSE file.
+ */
+
+#ifndef BLACKMISC_SIMULATION_SETTINGS_CXSWIFTBUSSETTINGSQTFREE_H
+#define BLACKMISC_SIMULATION_SETTINGS_CXSWIFTBUSSETTINGSQTFREE_H
+
+#include <string>
+
+namespace BlackMisc
+{
+    namespace Simulation
+    {
+        namespace Settings
+        {
+            /*!
+             * XSwiftBus/swift side settings class, JSON capable, shared among all services
+             * \details Used on swift and XSwiftBus side, MUST BE QT free
+             */
+            class CXSwiftBusSettingsQtFree
+            {
+            public:
+                //! Constructor.
+                CXSwiftBusSettingsQtFree();
+
+                //! DBus server
+                const std::string &getDBusServerAddress() const { return m_dBusServerAddress; }
+
+                //! Set DBus server
+                void setDBusServerAddress(const std::string &dBusServer) { m_dBusServerAddress = dBusServer; }
+
+                //! Set whether the plugin draws type and callsign labels above aircraft
+                void setDrawingLabels(bool drawing) { m_drawingLabels = drawing; }
+
+                //! Get whether the plugin draws type and callsign labels above aircraft
+                bool isDrawingLabels() const { return m_drawingLabels; }
+
+                //! Set the maximum number of aircraft.
+                void setMaxPlanes(int planes) { m_maxPlanes = planes; }
+
+                //! Get the maximum number of aircraft.
+                int getMaxPlanes() const { return m_maxPlanes; }
+
+                //! Set the maximum distance at which to draw aircraft (nautical miles).
+                double getMaxDrawDistanceNM() const { return m_maxDrawDistanceNM; }
+
+                //! Set the maximum distance at which to draw aircraft (nautical miles).
+                void setMaxDrawDistanceNM(double nauticalMiles) { m_maxDrawDistanceNM = nauticalMiles; }
+
+                //! Load and parse config file
+                bool parseXSwiftBusString(const std::string &json);
+
+                //! As JSON string
+                std::string toXSwiftBusJsonString() const;
+
+            protected:
+                //! The JSON members @{
+                static constexpr char JsonDBusServerAddress[] = "dbusserveradress";
+                static constexpr char JsonDrawingLabels[]     = "drawinglabels";
+                static constexpr char JsonMaxPlanes[]         = "maxplanes";
+                static constexpr char JsonMaxDrawDistance[]   = "maxDrawDistance";
+                //! @}
+
+                std::string m_dBusServerAddress { "tcp:host=127.0.0.1,port=45001" }; //!< DBus server
+                int    m_maxPlanes = 100;          //!< max. planes in XPlane
+                bool   m_drawingLabels = true;     //!< labels in XPlane
+                double m_maxDrawDistanceNM = 50.0; //!< distance in XPlane
+            };
+        } // ns
+    } // ns
+} // ns
+
+#endif