Use QStringBuilder in livery

src/blackgui/settings/viewdirectorysettings.h

@@ -1,42 +0,0 @@
-/* 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 "blackmisc/directoryutils.h"
-#include <QString>
-
-namespace BlackGui
-{
-    namespace Settings
-    {
-        //! Trait for directory settings
-        struct TViewDirectorySettings : public BlackMisc::TSettingTrait<QString>
-        {
-            //! \copydoc BlackCore::TSettingTrait::key
-            static const char *key() { return "guiviewdirectory/%Application%"; }
-
-            //! \copydoc BlackCore::TSettingTrait::humanReadable
-            static const QString &humanReadable() { static const QString name("View directory"); return name; }
-
-            //! \copydoc BlackCore::TSettingTrait::isValid
-            static bool isValid(const QString &directory) { Q_UNUSED(directory); return true; }
-
-            //! \copydoc BlackCore::TSettingTrait::defaultValue
-            static const QString &defaultValue() { return BlackMisc::CDirectoryUtils::documentationDirectory(); }
-        };
-    } // ns
-} // ns
-
-#endif // guard