refs #568, specialized view class for DB objects

* CViewWithDbObjects
* new menu for views (delete key, remove)
* adjusted derived classes

src/blackgui/views/viewdbobjects.h

@@ -0,0 +1,53 @@
+/* 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 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_VIEWDBOBJECTS_H
+#define BLACKGUI_VIEWDBOBJECTS_H
+
+#include "blackgui/blackguiexport.h"
+#include "viewbase.h"
+#include <QMenu>
+
+namespace BlackGui
+{
+    namespace Views
+    {
+        //! Base class for views with DB objects
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType> class CViewWithDbObjects :
+            public CViewBase<ModelClass, ContainerType, ObjectType>
+        {
+        public:
+            //! Get latest object
+            ObjectType latestObject() const;
+
+            //! Get oldets object
+            ObjectType oldestObject() const;
+
+            //! Select given DB keys
+            void selectDbKeys(const QList<KeyType> &keys);
+
+            //! Remove keys
+            int removeDbKeys(const QList<KeyType> &keys);
+
+        protected:
+            //! Constructor
+            explicit CViewWithDbObjects(QWidget *parent = nullptr);
+
+            //! \copydoc QWidget::customMenu
+            virtual void customMenu(QMenu &menu) const override;
+
+        private slots:
+            //! Highlight DB data
+            void ps_toggleDbData();
+        };
+    } // namespace
+} // namespace
+#endif // guard