blacklib folder reorganisation

src/blackmisc/message_handler.h

@@ -0,0 +1,75 @@
+//! Copyright (C) 2013 Roland Winklmeier
+//! This Source Code Form is subject to the terms of the Mozilla Public
+//! License, v. 2.0. If a copy of the MPL was not distributed with this
+//! file, You can obtain one at http://mozilla.org/MPL/2.0/
+
+#ifndef MESSAGE_HANDLER_H
+#define MESSAGE_HANDLER_H
+
+#include <QMap>
+#include "blackmisc/message.h"
+#include "blackmisc/debug.h"
+#include "blackmisc/type_info.h"
+#include "blackmisc/message_dispatcher.h"
+
+namespace BlackMisc
+{
+
+    class IFunctionHandler
+    {
+    public:
+        virtual ~IFunctionHandler() {}
+        void exec (const IMessage* message)
+        {
+            call (message);
+        }
+
+    private:
+        virtual void call (const IMessage*) = 0;
+    };
+
+    template <class T, class MessageT>
+    class MemberFunctionHandler :   public IFunctionHandler
+    {
+    public:
+        typedef void (T::*MemberFunction)(MessageT*);
+        MemberFunctionHandler(T* instance, MemberFunction memfunc)  :   m_instance(instance), m_function(memfunc) {}
+
+        void call(const IMessage* message)
+        {
+            (m_instance->*m_function)(static_cast<MessageT*>(message));
+        }
+
+    private:
+        T* m_instance;
+        MemberFunction m_function;
+    };
+
+
+    class CMessageHandler
+    {
+    public:
+        ~CMessageHandler();
+
+        void handleMessage(const IMessage* message);
+
+        template <class T, class MessageT>
+        void registerMessageFunction(T*, void (T::*memfunc)(MessageT*));
+
+    private:
+        typedef QMap<CTypeInfo, IFunctionHandler*> TFunctionHandlerMap;
+        TFunctionHandlerMap m_messagehandler;
+    };
+
+    template <class T, class MessageT>
+    void CMessageHandler::registerMessageFunction(T* obj, void (T::*memfunc)(MessageT*))
+    {
+        CTypeInfo typeinfo = CTypeInfo(typeid(MessageT));
+        m_messagehandler[typeinfo]= new MemberFunctionHandler<T, MessageT>(obj, memfunc);
+        CMessageDispatcher::getInstance().registerClass(obj, typeinfo);
+    }
+
+
+} // namespace BlackMisc
+
+#endif // MESSAGE_HANDLER_H