Ref T259, Ref T243 adjusted container, models and views to support CInterpolationSetupList

* added forward declarations
* added some utility functions

src/blackgui/views/interpolationsetupview.h

@@ -0,0 +1,35 @@
+/* Copyright (C) 2018
+ * 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 and at http://www.swift-project.org/license.html. 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 BLACKGUI_VIEWS_INTERPOLATIONSETUPVIEW_H
+#define BLACKGUI_VIEWS_INTERPOLATIONSETUPVIEW_H
+
+#include "blackgui/blackguiexport.h"
+#include "blackgui/models/interpolationsetupmodel.h"
+#include "blackgui/views/viewcallsignobjects.h"
+#include "blackmisc/countrylist.h"
+
+class QWidget;
+
+namespace BlackGui
+{
+    namespace Views
+    {
+        //! Distributors
+        class BLACKGUI_EXPORT CInterpolationSetupView : public CViewWithCallsignObjects<Models::CInterpolationSetupListModel, BlackMisc::Simulation::CInterpolationSetupList, BlackMisc::Simulation::CInterpolationAndRenderingSetupPerCallsign>
+        {
+        public:
+            //! Constructor
+            explicit CInterpolationSetupView(QWidget *parent = nullptr);
+        };
+    } // ns
+} // ns
+#endif // guard