refs #535, allow acces to mapping component is sub components

* aware classe
* using aware class in mapping component

src/blackgui/components/dbmappingcomponentaware.h

@@ -0,0 +1,45 @@
+/* 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_COMPONENTS_DBMAPPINGCOMPONENTAWARE_H
+#define BLACKGUI_COMPONENTS_DBMAPPINGCOMPONENTAWARE_H
+
+#include "blackgui/blackguiexport.h"
+
+namespace BlackGui
+{
+    namespace Components
+    {
+        class CDbMappingComponent;
+
+        //! Allows subcomponents to gain access to model component
+        class BLACKGUI_EXPORT CDbMappingComponentAware
+        {
+        public:
+            //! Set the corresponding component
+            void setMappingComponent(CDbMappingComponent *component) { m_mappingComponent = component; }
+
+        protected:
+            //! Constructor
+            CDbMappingComponentAware(QObject *parent);
+
+            //! Get the mapping component
+            const CDbMappingComponent *getMappingComponent() const { return m_mappingComponent; }
+
+            //! Get mapping component
+            CDbMappingComponent *getMappingComponent() { return m_mappingComponent; }
+
+        private :
+            CDbMappingComponent *m_mappingComponent = nullptr;
+        };
+    } // ns
+} // ns
+#endif // guard