Ref T63, remember directory

src/blackgui/settings/guisettings.h

@@ -64,7 +64,7 @@ namespace BlackGui
 
         private:
             QString m_widgetStyle { "Fusion" };
-            int     m_preferredSelection = static_cast<int>(QAbstractItemView::ExtendedSelection);
+            int m_preferredSelection = static_cast<int>(QAbstractItemView::ExtendedSelection);
 
             BLACK_METACLASS(
                 CGeneralGuiSettings,

src/blackgui/settings/viewdirectorysettings.h

@@ -0,0 +1,39 @@
+/* Copyright (C) 2017
+ * 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_SETTINGS_VIEWDIRECTORYSETTINGS_H
+#define BLACKGUI_SETTINGS_VIEWDIRECTORYSETTINGS_H
+
+#include "blackgui/blackguiexport.h"
+#include "blackmisc/settingscache.h"
+#include "blackconfig/buildconfig.h"
+#include <QString>
+
+namespace BlackGui
+{
+    namespace Settings
+    {
+        //! Trait for directory settings
+        struct TViewDirectorySettings : public BlackMisc::TSettingTrait<QString>
+        {
+            //! Key in data cache
+            static const char *key() { return "guiviewdirectory/%Application%"; }
+
+            //! Validator function.
+            static bool isValid(const QString &directory) { Q_UNUSED(directory); return true; }
+
+            //! Default, not consolidating
+            static const QString &defaultValue() { return BlackConfig::CBuildConfig::getDocumentationDirectory(); }
+        };
+    } // ns
+} // ns
+
+#endif // guard