refs #199 , the context runtime now can be initialized for local and for remote objects.

* In order to configure how a context is deployed, a runtime config object has been added
* Context now only can be obtained from the runtime, the constructors of contexts will be no longer public
* The runtime is responsible for connecting signal/slots among contexts
* The runtime reads the settings

src/blackcore/context_runtime.h

@@ -0,0 +1,100 @@
+#ifndef BLACKCORE_CONTEXT_RUNTIME_H
+#define BLACKCORE_CONTEXT_RUNTIME_H
+
+#include <QDBusConnection>
+#include <QObject>
+#include "blackcore/context_runtime_config.h"
+
+namespace BlackCore
+{
+    // forward declaration, see review
+    // https://dev.vatsim-germany.org/boards/22/topics/1350?r=1359#message-1359
+    class CDBusServer;
+    class CContextNetwork;
+    class CContextAudio;
+    class CContextSettings;
+    class CContextApplication;
+    class CContextSimulator;
+    class IContextNetwork;
+    class IContextAudio;
+    class IContextSettings;
+    class IContextApplication;
+    class IContextSimulator;
+
+    //! The Context runtime class
+    class CRuntime : public QObject
+    {
+        Q_OBJECT
+
+    private:
+        bool m_init; /*!< flag */
+        CDBusServer *m_dbusServer;
+        bool m_initDBusConnection;
+        QDBusConnection m_dbusConnection;
+        IContextNetwork *m_contextNetwork;
+        IContextAudio *m_contextAudio;
+        IContextSettings *m_contextSettings;
+        IContextApplication *m_contextApplication;
+        IContextSimulator *m_contextSimulator;
+
+        //! Init
+        void init(const CRuntimeConfig &config);
+
+        //! initialization of DBus connection (where applicable)
+        void initDBusConnection();
+
+        //! initialization of DBus connection (where applicable)
+        void initDBusServer(const QString &dBusAddress);
+
+        //! post init tasks, mainly connecting context signal slots
+        void initPostSetup();
+
+    public:
+        //! Constructor
+        CRuntime(const CRuntimeConfig &config, QObject *parent = nullptr);
+
+        //! Destructor
+        virtual ~CRuntime() {}
+
+        //! DBus server
+        const CDBusServer *getDBusServer() const
+        {
+            return this->m_dbusServer;
+        }
+
+        //! Context for network
+        IContextNetwork *getIContextNetwork();
+
+        //! Context for network
+        const IContextNetwork *getIContextNetwork() const;
+
+        //! Context for network
+        IContextAudio *getIContextAudio();
+
+        //! Context for network
+        const IContextAudio *getIContextAudio() const;
+
+        //! Settings
+        IContextSettings *getIContextSettings();
+
+        //! Settings
+        const IContextSettings *getIContextSettings() const;
+
+        //! Context for application
+        const IContextApplication *getIContextApplication() const;
+
+        //! Application
+        IContextApplication *getIContextApplication();
+
+        //! Context for simulator
+        const IContextSimulator *getIContextSimulator() const;
+
+        //! Simulator
+        IContextSimulator *getIContextSimulator();
+
+    private:
+        CContextAudio *getCContextAudio();
+        CContextAudio *getCContextAudio() const;
+    };
+}
+#endif // guard