Adding SimpleObjectsReferencer to avoid gore code in EffectNode.cpp, concerning the connected slots

src/EffectsEngine/SimpleObjectsReferencer.hpp

+/*****************************************************************************
+ * SimpleObjectsReferencer.h: Template class use to store obj reference
+ *                            ( not cpp refs, in internal it's pointers).
+ *****************************************************************************
+ * Copyright (C) 2008-2009 the VLMC team
+ *
+ * Authors: Vincent Carrubba <cyberbouba@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef SIMPLEOBJECTSREFERENCER_H_
+#define SIMPLEOBJECTSREFERENCER_H_
+
+#include <QtGlobal>
+#include <QMap>
+
+template<typename T>
+class      SimpleObjectsReferencer
+{
+public:
+
+    SimpleObjectsReferencer()
+    {};
+
+    ~SimpleObjectsReferencer()
+    {}
+
+    bool     addObjectReference( T * obj, quint32 objId )
+    {
+        if ( m_objRefs.find( objId ) == m_objRefs.end() )
+        {
+            m_objRefs[ objId ] = obj;
+            return ( true );
+        }
+        return ( false );
+    };
+
+    bool     delObjectReference( quint32 objId )
+    {
+        QMap<quint32, T*>::iterator it = m_objRefs.find( objId );
+
+        if ( it != m_objRefs.end() )
+        {
+            m_objRefs.erase( it );
+            return ( true );
+        }
+        return ( false );
+    };
+
+    quint32 getNBObjectsReferences( void ) const
+    {
+        return ( m_objRefs.size() );
+    };
+
+    QList<T*> getObjectsReferencesList( void ) const
+    {
+        return ( m_objRefs.values() );
+    };
+
+private:
+
+    QMap<quint32, T*>                 m_objRefs;
+};
+
+#endif // SIMPLEOBJECTSREFERENCER_H_