Issue #77 Move CMultiAircraftModelLoaderProvider into a new module

This breaks the cyclic dependencies between IAircraftModelLoader and its subclasses.

src/blackmisc/simulation/aircraftmodelloaderprovider.h

@@ -0,0 +1,72 @@
+/* Copyright (C) 2015
+ * 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.
+ */
+
+//! \file
+
+#ifndef BLACKMISC_SIMULATION_IAIRCRAFTMODELLOADERPROVIDER_H
+#define BLACKMISC_SIMULATION_IAIRCRAFTMODELLOADERPROVIDER_H
+
+#include "blackmisc/simulation/aircraftmodelloader.h"
+
+namespace BlackMisc
+{
+    namespace Simulation
+    {
+        /*!
+         * Single instances of all model loaders (lazy init)
+         */
+        class BLACKMISC_EXPORT CMultiAircraftModelLoaderProvider : public QObject
+        {
+            Q_OBJECT
+
+        public:
+            //! Create a loader and synchronize caches
+            static IAircraftModelLoader *createModelLoader(const CSimulatorInfo &simulator, QObject *parent = nullptr);
+
+            //! Loader instance
+            IAircraftModelLoader *loaderInstance(const CSimulatorInfo &simulator);
+
+            //! Singleton
+            static CMultiAircraftModelLoaderProvider &multiModelLoaderInstance();
+
+            //! Simulator specific loaders
+            //! @{
+            IAircraftModelLoader *modelLoaderFsx() const { return m_loaderFsx; }
+            IAircraftModelLoader *modelLoaderP3D() const { return m_loaderP3D; }
+            IAircraftModelLoader *modelLoaderXP()  const { return m_loaderXP;  }
+            IAircraftModelLoader *modelLoaderFS9() const { return m_loaderFS9; }
+            IAircraftModelLoader *modelLoaderFG()  const { return m_loaderFG;  }
+            //! @}
+
+        signals:
+            //! \copydoc IAircraftModelLoader::loadingFinished
+            void loadingFinished(const BlackMisc::CStatusMessageList &status, const CSimulatorInfo &simulator, IAircraftModelLoader::LoadFinishedInfo info);
+
+            //! \copydoc IAircraftModelLoader::diskLoadingStarted
+            void diskLoadingStarted(const CSimulatorInfo &simulator, IAircraftModelLoader::LoadMode mode);
+
+            //! \copydoc IAircraftModelLoader::loadingProgress
+            void loadingProgress(const CSimulatorInfo &simulator, const QString &message, int progressPercentage);
+
+            //! \copydoc IAircraftModelLoader::cacheChanged
+            void cacheChanged(const CSimulatorInfo &simulator);
+
+        private:
+            IAircraftModelLoader *m_loaderFsx = nullptr;
+            IAircraftModelLoader *m_loaderP3D = nullptr;
+            IAircraftModelLoader *m_loaderXP  = nullptr;
+            IAircraftModelLoader *m_loaderFS9 = nullptr;
+            IAircraftModelLoader *m_loaderFG  = nullptr;
+
+            //! Init the loader
+            IAircraftModelLoader *initLoader(const CSimulatorInfo &simulator);
+        };
+    } // ns
+} // ns
+
+#endif // guard