Allow to save interpolation/rendering setup

- setting trait
- save/load logic in context
- adjusted UI, allow to reset global setup

src/blackmisc/simulation/settings/interpolationrenderingsetupsettings.h

@@ -0,0 +1,37 @@
+/* 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 BLACKMISC_SIMULATION_SETTINGS_INTERPOLATIONRENDERINGSETUP_H
+#define BLACKMISC_SIMULATION_SETTINGS_INTERPOLATIONRENDERINGSETUP_H
+
+#include "blackmisc/simulation/interpolationrenderingsetup.h"
+#include "blackmisc/settingscache.h"
+
+namespace BlackMisc
+{
+    namespace Simulation
+    {
+        namespace Settings
+        {
+            //! Last model used
+            struct TInterpolationAndRenderingSetupGlobal : public TSettingTrait<CInterpolationAndRenderingSetupGlobal>
+            {
+                //! \copydoc BlackCore::TSettingTrait::key
+                static const char *key() { return "settingsglobalinterpolationsetup"; }
+
+                //! \copydoc BlackCore::TSettingTrait::humanReadable
+                static const QString &humanReadable() { static const QString name("Interpolation setup"); return name; }
+            };
+        } // ns
+    } // ns
+} // ns
+
+#endif // guard