diff --git a/src/sigslot/sigslot.h b/src/sigslot/sigslot.h
new file mode 100644
index 0000000..1e3c521
--- /dev/null
+++ b/src/sigslot/sigslot.h
@@ -0,0 +1,1682 @@
+// sigslot.h: Signal/Slot classes
+//
+// Written by Sarah Thompson (sarah@telergy.com) 2002.
+//
+// License: Public domain. You are free to use this code however you like, with the proviso that
+//          the author takes on no responsibility or liability for any use.
+//
+// QUICK DOCUMENTATION
+//
+//				(see also the full documentation at http://sigslot.sourceforge.net/)
+//
+//		#define switches
+//			SIGSLOT_PURE_ISO			- Define this to force ISO C++ compliance. This also disables
+//										  all of the thread safety support on platforms where it is
+//										  available.
+//
+//			SIGSLOT_USE_POSIX_THREADS	- Force use of Posix threads when using a C++ compiler other than
+//										  gcc on a platform that supports Posix threads. (When using gcc,
+//										  this is the default - use SIGSLOT_PURE_ISO to disable this if
+//										  necessary)
+//
+//			SIGSLOT_DEFAULT_MT_POLICY	- Where thread support is enabled, this defaults to multi_threaded_global.
+//										  Otherwise, the default is single_threaded. #define this yourself to
+//										  override the default. In pure ISO mode, anything other than
+//										  single_threaded will cause a compiler error.
+//
+//		PLATFORM NOTES
+//
+//			Win32						- On Win32, the WIN32 symbol must be #defined. Most mainstream
+//										  compilers do this by default, but you may need to define it
+//										  yourself if your build environment is less standard. This causes
+//										  the Win32 thread support to be compiled in and used automatically.
+//
+//			Unix/Linux/BSD, etc.		- If you're using gcc, it is assumed that you have Posix threads
+//										  available, so they are used automatically. You can override this
+//										  (as under Windows) with the SIGSLOT_PURE_ISO switch. If you're using
+//										  something other than gcc but still want to use Posix threads, you
+//										  need to #define SIGSLOT_USE_POSIX_THREADS.
+//
+//			ISO C++						- If none of the supported platforms are detected, or if
+//										  SIGSLOT_PURE_ISO is defined, all multithreading support is turned off,
+//										  along with any code that might cause a pure ISO C++ environment to
+//										  complain. Before you ask, gcc -ansi -pedantic won't compile this
+//										  library, but gcc -ansi is fine. Pedantic mode seems to throw a lot of
+//										  errors that aren't really there. If you feel like investigating this,
+//										  please contact the author.
+//
+//
+//		THREADING MODES
+//
+//			single_threaded				- Your program is assumed to be single threaded from the point of view
+//										  of signal/slot usage (i.e. all objects using signals and slots are
+//										  created and destroyed from a single thread). Behaviour if objects are
+//										  destroyed concurrently is undefined (i.e. you'll get the occasional
+//										  segmentation fault/memory exception).
+//
+//			multi_threaded_global		- Your program is assumed to be multi threaded. Objects using signals and
+//										  slots can be safely created and destroyed from any thread, even when
+//										  connections exist. In multi_threaded_global mode, this is achieved by a
+//										  single global mutex (actually a critical section on Windows because they
+//										  are faster). This option uses less OS resources, but results in more
+//										  opportunities for contention, possibly resulting in more context switches
+//										  than are strictly necessary.
+//
+//			multi_threaded_local		- Behaviour in this mode is essentially the same as multi_threaded_global,
+//										  except that each signal, and each object that inherits has_slots, all
+//										  have their own mutex/critical section. In practice, this means that
+//										  mutex collisions (and hence context switches) only happen if they are
+//										  absolutely essential. However, on some platforms, creating a lot of
+//										  mutexes can slow down the whole OS, so use this option with care.
+//
+//		USING THE LIBRARY
+//
+//			See the full documentation at http://sigslot.sourceforge.net/
+//
+//
+
+#ifndef __SIGSLOT_H__
+#define __SIGSLOT_H__
+
+#include <list>
+#include <set>
+
+#if defined(SIGSLOT_PURE_ISO) || (!defined(WIN32) && !defined(__GNUG__) && !defined(SIGSLOT_USE_POSIX_THREADS))
+#	define _SIGSLOT_SINGLE_THREADED
+#elif defined(WIN32)
+#	define _SIGSLOT_HAS_WIN32_THREADS
+#	include <windows.h>
+#elif defined(__GNUG__) || defined(SIGSLOT_USE_POSIX_THREADS)
+#	define _SIGSLOT_HAS_POSIX_THREADS
+#	include <pthread.h>
+#else
+#	define _SIGSLOT_SINGLE_THREADED
+#endif
+
+#ifndef SIGSLOT_DEFAULT_MT_POLICY
+#	ifdef _SIGSLOT_SINGLE_THREADED
+#		define SIGSLOT_DEFAULT_MT_POLICY single_threaded
+#	else
+#		define SIGSLOT_DEFAULT_MT_POLICY multi_threaded_local
+#	endif
+#endif
+
+#ifndef SIGSLOT_EMIT
+#	ifdef QT_VERSION
+#		define SIGSLOT_EMIT broadcast
+#	else
+#		define SIGSLOT_EMIT emit
+#	endif
+#endif
+
+namespace tqcq {
+
+class single_threaded
+{
+public:
+    single_threaded() {}
+    virtual ~single_threaded() {}
+    virtual void lock() {}
+    virtual void unlock() {}
+};
+
+#ifdef _SIGSLOT_HAS_WIN32_THREADS
+// The multi threading policies only get compiled in if they are enabled.
+class multi_threaded_global
+{
+public:
+    multi_threaded_global()
+    {
+        static bool isinitialised = false;
+
+        if(!isinitialised)
+        {
+            InitializeCriticalSection(get_critsec());
+            isinitialised = true;
+        }
+    }
+
+    multi_threaded_global(const multi_threaded_global&)
+    {}
+
+    virtual ~multi_threaded_global()
+    {}
+
+    virtual void lock()
+    {
+        EnterCriticalSection(get_critsec());
+    }
+
+    virtual void unlock()
+    {
+        LeaveCriticalSection(get_critsec());
+    }
+
+private:
+    CRITICAL_SECTION* get_critsec()
+    {
+        static CRITICAL_SECTION g_critsec;
+        return &g_critsec;
+    }
+};
+
+class multi_threaded_local
+{
+public:
+    multi_threaded_local()
+    {
+        InitializeCriticalSection(&m_critsec);
+    }
+
+    multi_threaded_local(const multi_threaded_local&)
+    {
+        InitializeCriticalSection(&m_critsec);
+    }
+
+    virtual ~multi_threaded_local()
+    {
+        DeleteCriticalSection(&m_critsec);
+    }
+
+    virtual void lock()
+    {
+        EnterCriticalSection(&m_critsec);
+    }
+
+    virtual void unlock()
+    {
+        LeaveCriticalSection(&m_critsec);
+    }
+
+private:
+    CRITICAL_SECTION m_critsec;
+};
+#endif // _SIGSLOT_HAS_WIN32_THREADS
+
+#ifdef _SIGSLOT_HAS_POSIX_THREADS
+// The multi threading policies only get compiled in if they are enabled.
+class multi_threaded_global
+{
+public:
+    multi_threaded_global()
+    {
+        pthread_mutex_init(get_mutex(), NULL);
+    }
+
+    multi_threaded_global(const multi_threaded_global&)
+    {}
+
+    virtual ~multi_threaded_global()
+    {}
+
+    virtual void lock()
+    {
+        pthread_mutex_lock(get_mutex());
+    }
+
+    virtual void unlock()
+    {
+        pthread_mutex_unlock(get_mutex());
+    }
+
+private:
+    pthread_mutex_t* get_mutex()
+    {
+        static pthread_mutex_t g_mutex;
+        return &g_mutex;
+    }
+};
+
+class multi_threaded_local
+{
+public:
+    multi_threaded_local()
+    {
+        pthread_mutex_init(&m_mutex, NULL);
+    }
+
+    multi_threaded_local(const multi_threaded_local&)
+    {
+        pthread_mutex_init(&m_mutex, NULL);
+    }
+
+    virtual ~multi_threaded_local()
+    {
+        pthread_mutex_destroy(&m_mutex);
+    }
+
+    virtual void lock()
+    {
+        pthread_mutex_lock(&m_mutex);
+    }
+
+    virtual void unlock()
+    {
+        pthread_mutex_unlock(&m_mutex);
+    }
+
+private:
+    pthread_mutex_t m_mutex;
+};
+#endif // _SIGSLOT_HAS_POSIX_THREADS
+
+template<class mt_policy>
+class lock_block
+{
+public:
+    mt_policy *m_mutex;
+
+    lock_block(mt_policy *mtx)
+        : m_mutex(mtx)
+    {
+        m_mutex->lock();
+    }
+
+    ~lock_block()
+    {
+        m_mutex->unlock();
+    }
+};
+
+template<class mt_policy>
+class has_slots;
+
+template<class mt_policy>
+class _connection_base0
+{
+public:
+    virtual ~_connection_base0() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT() = 0;
+    virtual _connection_base0* clone() = 0;
+    virtual _connection_base0* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class mt_policy>
+class _connection_base1
+{
+public:
+    virtual ~_connection_base1() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type) = 0;
+    virtual _connection_base1<arg1_type, mt_policy>* clone() = 0;
+    virtual _connection_base1<arg1_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class mt_policy>
+class _connection_base2
+{
+public:
+    virtual ~_connection_base2() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type) = 0;
+    virtual _connection_base2<arg1_type, arg2_type, mt_policy>* clone() = 0;
+    virtual _connection_base2<arg1_type, arg2_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class mt_policy>
+class _connection_base3
+{
+public:
+    virtual ~_connection_base3() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type) = 0;
+    virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* clone() = 0;
+    virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type, class mt_policy>
+class _connection_base4
+{
+public:
+    virtual ~_connection_base4() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type, arg4_type) = 0;
+    virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* clone() = 0;
+    virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class mt_policy>
+class _connection_base5
+{
+public:
+    virtual ~_connection_base5() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type) = 0;
+    virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, mt_policy>* clone() = 0;
+    virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class mt_policy>
+class _connection_base6
+{
+public:
+    virtual ~_connection_base6() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
+                              arg6_type) = 0;
+    virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, mt_policy>* clone() = 0;
+    virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class arg7_type, class mt_policy>
+class _connection_base7
+{
+public:
+    virtual ~_connection_base7() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
+                              arg6_type, arg7_type) = 0;
+    virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, mt_policy>* clone() = 0;
+    virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class arg7_type, class arg8_type, class mt_policy>
+class _connection_base8
+{
+public:
+    virtual ~_connection_base8() {}
+    virtual has_slots<mt_policy>* getdest() const = 0;
+    virtual void SIGSLOT_EMIT(arg1_type, arg2_type, arg3_type, arg4_type, arg5_type,
+                              arg6_type, arg7_type, arg8_type) = 0;
+    virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* clone() = 0;
+    virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest) = 0;
+};
+
+template<class mt_policy>
+class _signal_base : public mt_policy
+{
+public:
+    virtual void slot_disconnect(has_slots<mt_policy>* pslot) = 0;
+    virtual void slot_duplicate(const has_slots<mt_policy>* poldslot, has_slots<mt_policy>* pnewslot) = 0;
+};
+
+// Implements common functionality of signalN classes. signalN classes
+// derive from this class.
+template<class T, class mt_policy>
+class _signal_base_middle: public _signal_base<mt_policy>
+{
+public:
+
+    typedef T connections_list;
+    typedef typename connections_list::iterator iterator;
+    typedef typename connections_list::const_iterator const_iterator;
+
+    _signal_base_middle() {}
+
+    _signal_base_middle(const _signal_base_middle<connections_list, mt_policy> &s)
+        : _signal_base<mt_policy>(s)
+    {
+        lock_block<mt_policy> lock(this);
+
+        const_iterator it = s.m_connected_slots.begin();
+        const_iterator itEnd = s.m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            (*it)->getdest()->signal_connect(this);
+            m_connected_slots.push_back((*it)->clone());
+            ++it;
+        }
+    }
+
+    virtual ~_signal_base_middle() {}
+
+    void disconnect_all()
+    {
+        lock_block<mt_policy> lock(this);
+
+        const_iterator it = m_connected_slots.begin();
+        const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            (*it)->getdest()->signal_disconnect(this);
+            delete *it;
+
+            ++it;
+        }
+
+        m_connected_slots.erase(m_connected_slots.begin(), m_connected_slots.end());
+    }
+
+    bool is_empty()
+    {
+        lock_block<mt_policy> lock(this);
+
+        const_iterator it = m_connected_slots.begin();
+        const_iterator itEnd = m_connected_slots.end();
+
+        return it == itEnd;
+    }
+
+#ifdef _DEBUG
+    bool connected(has_slots<mt_policy>* pclass)
+    {
+        lock_block<mt_policy> lock(this);
+
+        const_iterator itNext, it = m_connected_slots.begin();
+        const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+            if ((*it)->getdest() == pclass)
+                return true;
+            it = itNext;
+        }
+        return false;
+    }
+#endif
+
+    void disconnect(has_slots<mt_policy>* pclass)
+    {
+        lock_block<mt_policy> lock(this);
+
+        iterator it = m_connected_slots.begin();
+        iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            if((*it)->getdest() == pclass)
+            {
+                delete *it;
+                m_connected_slots.erase(it);
+                pclass->signal_disconnect(this);
+                return;
+            }
+
+            ++it;
+        }
+    }
+
+    void slot_disconnect(has_slots<mt_policy>* pslot)
+    {
+        lock_block<mt_policy> lock(this);
+
+        iterator it = m_connected_slots.begin();
+        iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            iterator itNext = it;
+            ++itNext;
+
+            if((*it)->getdest() == pslot)
+            {
+                delete *it;
+                m_connected_slots.erase(it);
+            }
+
+            it = itNext;
+        }
+    }
+
+    void slot_duplicate(const has_slots<mt_policy>* oldtarget, has_slots<mt_policy>* newtarget)
+    {
+        lock_block<mt_policy> lock(this);
+
+        iterator it = m_connected_slots.begin();
+        iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            if((*it)->getdest() == oldtarget)
+            {
+                m_connected_slots.push_back((*it)->duplicate(newtarget));
+            }
+
+            ++it;
+        }
+    }
+
+protected:
+
+    connections_list m_connected_slots;
+
+};
+
+template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class has_slots : public mt_policy
+{
+private:
+    typedef typename std::set<_signal_base<mt_policy> *> sender_set;
+    typedef typename sender_set::const_iterator const_iterator;
+
+public:
+    has_slots()
+    {}
+
+    has_slots(const has_slots& hs)
+        : mt_policy(hs)
+    {
+        lock_block<mt_policy> lock(this);
+        const_iterator it = hs.m_senders.begin();
+        const_iterator itEnd = hs.m_senders.end();
+
+        while(it != itEnd)
+        {
+            (*it)->slot_duplicate(&hs, this);
+            m_senders.insert(*it);
+            ++it;
+        }
+    }
+
+    void signal_connect(_signal_base<mt_policy>* sender)
+    {
+        lock_block<mt_policy> lock(this);
+        m_senders.insert(sender);
+    }
+
+    void signal_disconnect(_signal_base<mt_policy>* sender)
+    {
+        lock_block<mt_policy> lock(this);
+        m_senders.erase(sender);
+    }
+
+    virtual ~has_slots()
+    {
+        disconnect_all();
+    }
+
+    void disconnect_all()
+    {
+        lock_block<mt_policy> lock(this);
+        const_iterator it = m_senders.begin();
+        const_iterator itEnd = m_senders.end();
+
+        while(it != itEnd)
+        {
+            (*it)->slot_disconnect(this);
+            ++it;
+        }
+
+        m_senders.erase(m_senders.begin(), m_senders.end());
+    }
+
+private:
+    sender_set m_senders;
+};
+
+
+
+template<class dest_type, class mt_policy>
+class _connection0 : public _connection_base0<mt_policy>
+{
+public:
+    _connection0()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection0(dest_type* pobject, void (dest_type::*pmemfun)())
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection0()
+    {}
+
+    virtual _connection_base0<mt_policy>* clone()
+    {
+        return new _connection0<dest_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base0<mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection0<dest_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT()
+    {
+        (m_pobject->*m_pmemfun)();
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)();
+};
+
+template<class dest_type, class arg1_type, class mt_policy>
+class _connection1 : public _connection_base1<arg1_type, mt_policy>
+{
+public:
+    _connection1()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection1(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection1()
+    {}
+
+    virtual _connection_base1<arg1_type, mt_policy>* clone()
+    {
+        return new _connection1<dest_type, arg1_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base1<arg1_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection1<dest_type, arg1_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1)
+    {
+        (m_pobject->*m_pmemfun)(a1);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class mt_policy>
+class _connection2 : public _connection_base2<arg1_type, arg2_type, mt_policy>
+{
+public:
+    _connection2()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection2(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection2()
+    {}
+
+    virtual _connection_base2<arg1_type, arg2_type, mt_policy>* clone()
+    {
+        return new _connection2<dest_type, arg1_type, arg2_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base2<arg1_type, arg2_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection2<dest_type, arg1_type, arg2_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type, class mt_policy>
+class _connection3 : public _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>
+{
+public:
+    _connection3()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection3(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection3()
+    {}
+
+    virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* clone()
+    {
+        return new _connection3<dest_type, arg1_type, arg2_type, arg3_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection3<dest_type, arg1_type, arg2_type, arg3_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
+         class arg4_type, class mt_policy>
+class _connection4 : public _connection_base4<arg1_type, arg2_type,
+                                              arg3_type, arg4_type, mt_policy>
+{
+public:
+    _connection4()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection4(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type, arg4_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection4()
+    {}
+
+    virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* clone()
+    {
+        return new _connection4<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection4<dest_type, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3,
+                              arg4_type a4)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3, a4);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type,
+                                 arg4_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
+         class arg4_type, class arg5_type, class mt_policy>
+class _connection5 : public _connection_base5<arg1_type, arg2_type,
+                                              arg3_type, arg4_type, arg5_type, mt_policy>
+{
+public:
+    _connection5()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection5(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type, arg4_type, arg5_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection5()
+    {}
+
+    virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, mt_policy>* clone()
+    {
+        return new _connection5<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base5<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection5<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                              arg5_type a5)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
+                                 arg5_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
+         class arg4_type, class arg5_type, class arg6_type, class mt_policy>
+class _connection6 : public _connection_base6<arg1_type, arg2_type,
+                                              arg3_type, arg4_type, arg5_type, arg6_type, mt_policy>
+{
+public:
+    _connection6()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection6(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type, arg4_type, arg5_type, arg6_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection6()
+    {}
+
+    virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, mt_policy>* clone()
+    {
+        return new _connection6<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base6<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection6<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                              arg5_type a5, arg6_type a6)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
+                                 arg5_type, arg6_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
+         class arg4_type, class arg5_type, class arg6_type, class arg7_type, class mt_policy>
+class _connection7 : public _connection_base7<arg1_type, arg2_type,
+                                              arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>
+{
+public:
+    _connection7()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection7(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection7()
+    {}
+
+    virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, mt_policy>* clone()
+    {
+        return new _connection7<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, arg7_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base7<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection7<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, arg7_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                              arg5_type a5, arg6_type a6, arg7_type a7)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6, a7);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
+                                 arg5_type, arg6_type, arg7_type);
+};
+
+template<class dest_type, class arg1_type, class arg2_type, class arg3_type,
+         class arg4_type, class arg5_type, class arg6_type, class arg7_type,
+         class arg8_type, class mt_policy>
+class _connection8 : public _connection_base8<arg1_type, arg2_type,
+                                              arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>
+{
+public:
+    _connection8()
+    {
+        m_pobject = NULL;
+        m_pmemfun = NULL;
+    }
+
+    _connection8(dest_type* pobject, void (dest_type::*pmemfun)(arg1_type,
+                                                                arg2_type, arg3_type, arg4_type, arg5_type, arg6_type,
+                                                                arg7_type, arg8_type))
+    {
+        m_pobject = pobject;
+        m_pmemfun = pmemfun;
+    }
+
+    virtual ~_connection8()
+    {}
+
+    virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* clone()
+    {
+        return new _connection8<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>(*this);
+    }
+
+    virtual _connection_base8<arg1_type, arg2_type, arg3_type, arg4_type,
+                              arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* duplicate(has_slots<mt_policy>* pnewdest)
+    {
+        return new _connection8<dest_type, arg1_type, arg2_type, arg3_type, arg4_type,
+                                arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>((dest_type *)pnewdest, m_pmemfun);
+    }
+
+    virtual void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                              arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
+    {
+        (m_pobject->*m_pmemfun)(a1, a2, a3, a4, a5, a6, a7, a8);
+    }
+
+    virtual has_slots<mt_policy>* getdest() const
+    {
+        return m_pobject;
+    }
+
+private:
+    dest_type* m_pobject;
+    void (dest_type::* m_pmemfun)(arg1_type, arg2_type, arg3_type, arg4_type,
+                                 arg5_type, arg6_type, arg7_type, arg8_type);
+};
+
+template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal0 : public _signal_base_middle<std::list<_connection_base0<mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal0<mt_policy> this_type;
+    typedef std::list<_connection_base0<mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal0()
+    {}
+
+    signal0(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal0()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)())
+    {
+        lock_block<mt_policy> lock(this);
+
+        _connection0<desttype, mt_policy>* conn =
+            new _connection0<desttype, mt_policy>(pclass, pmemfun);
+
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT()
+    {
+        lock_block<mt_policy> lock(this);
+
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT();
+
+            it = itNext;
+        }
+    }
+
+    void operator()()
+    {
+        SIGSLOT_EMIT();
+    }
+};
+
+template<class arg1_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal1 : public _signal_base_middle<std::list<_connection_base1<arg1_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal1<arg1_type, mt_policy> this_type;
+    typedef std::list<_connection_base1<arg1_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal1()
+    {}
+
+    signal1(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal1()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection1<desttype, arg1_type, mt_policy>* conn =
+            new _connection1<desttype, arg1_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1)
+    {
+        SIGSLOT_EMIT(a1);
+    }
+};
+
+template<class arg1_type, class arg2_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal2 : public _signal_base_middle<std::list<_connection_base2<arg1_type, arg2_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal2<arg1_type, arg2_type, mt_policy> this_type;
+    typedef std::list<_connection_base2<arg1_type, arg2_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal2()
+    {}
+
+    signal2(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal2()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection2<desttype, arg1_type, arg2_type, mt_policy>* conn = new
+            _connection2<desttype, arg1_type, arg2_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2)
+    {
+        SIGSLOT_EMIT(a1, a2);
+    }
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal3 : public _signal_base_middle<std::list<_connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal3<arg1_type, arg2_type, arg3_type, mt_policy> this_type;
+    typedef std::list<_connection_base3<arg1_type, arg2_type, arg3_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal3()
+    {}
+
+    signal3(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal3()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection3<desttype, arg1_type, arg2_type, arg3_type, mt_policy>* conn =
+            new _connection3<desttype, arg1_type, arg2_type, arg3_type, mt_policy>(pclass,
+                                                                                   pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3)
+    {
+        SIGSLOT_EMIT(a1, a2, a3);
+    }
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal4 : public _signal_base_middle<std::list<_connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy> this_type;
+    typedef std::list<_connection_base4<arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal4()
+    {}
+
+    signal4(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal4()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type, arg4_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection4<desttype, arg1_type, arg2_type, arg3_type, arg4_type, mt_policy>*
+            conn = new _connection4<desttype, arg1_type, arg2_type, arg3_type,
+                                    arg4_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3, a4);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4)
+    {
+        SIGSLOT_EMIT(a1, a2, a3, a4);
+    }
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal5 : public _signal_base_middle<std::list<_connection_base5<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal5<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, mt_policy> this_type;
+    typedef std::list<_connection_base5<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal5()
+    {}
+
+    signal5(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal5()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type, arg4_type, arg5_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection5<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
+                     arg5_type, mt_policy>* conn = new _connection5<desttype, arg1_type, arg2_type,
+                                                                    arg3_type, arg4_type, arg5_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                      arg5_type a5)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3, a4, a5);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                    arg5_type a5)
+    {
+        SIGSLOT_EMIT(a1, a2, a3, a4, a5);
+    }
+};
+
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal6 : public _signal_base_middle<std::list<_connection_base6<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal6<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, mt_policy> this_type;
+    typedef std::list<_connection_base6<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal6()
+    {}
+
+    signal6(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal6()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type, arg4_type, arg5_type, arg6_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection6<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
+                     arg5_type, arg6_type, mt_policy>* conn =
+            new _connection6<desttype, arg1_type, arg2_type, arg3_type,
+                             arg4_type, arg5_type, arg6_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                      arg5_type a5, arg6_type a6)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                    arg5_type a5, arg6_type a6)
+    {
+        SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6);
+    }
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class arg7_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal7 : public _signal_base_middle<std::list<_connection_base7<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal7<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, mt_policy> this_type;
+    typedef std::list<_connection_base7<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal7()
+    {}
+
+    signal7(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal7()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type, arg4_type, arg5_type, arg6_type,
+                                                             arg7_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection7<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
+                     arg5_type, arg6_type, arg7_type, mt_policy>* conn =
+            new _connection7<desttype, arg1_type, arg2_type, arg3_type,
+                             arg4_type, arg5_type, arg6_type, arg7_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                      arg5_type a5, arg6_type a6, arg7_type a7)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6, a7);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                    arg5_type a5, arg6_type a6, arg7_type a7)
+    {
+        SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6, a7);
+    }
+};
+
+template<class arg1_type, class arg2_type, class arg3_type, class arg4_type,
+         class arg5_type, class arg6_type, class arg7_type, class arg8_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
+class signal8 : public _signal_base_middle<std::list<_connection_base8<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>*>, mt_policy>
+{
+public:
+
+    typedef signal8<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy> this_type;
+    typedef std::list<_connection_base8<arg1_type, arg2_type, arg3_type, arg4_type, arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>*> connections_list;
+    typedef _signal_base_middle<connections_list, mt_policy> base_type;
+
+    using base_type::m_connected_slots;
+
+    signal8()
+    {}
+
+    signal8(const this_type& s)
+        : base_type(s)
+    {}
+
+    ~signal8()
+    {
+        base_type::disconnect_all();
+    }
+
+    template<class desttype>
+    void connect(desttype* pclass, void (desttype::*pmemfun)(arg1_type,
+                                                             arg2_type, arg3_type, arg4_type, arg5_type, arg6_type,
+                                                             arg7_type, arg8_type))
+    {
+        lock_block<mt_policy> lock(this);
+        _connection8<desttype, arg1_type, arg2_type, arg3_type, arg4_type,
+                     arg5_type, arg6_type, arg7_type, arg8_type, mt_policy>* conn =
+            new _connection8<desttype, arg1_type, arg2_type, arg3_type,
+                             arg4_type, arg5_type, arg6_type, arg7_type,
+                             arg8_type, mt_policy>(pclass, pmemfun);
+        m_connected_slots.push_back(conn);
+        pclass->signal_connect(this);
+    }
+
+    void SIGSLOT_EMIT(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                      arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
+    {
+        lock_block<mt_policy> lock(this);
+        typename connections_list::const_iterator itNext, it = m_connected_slots.begin();
+        typename connections_list::const_iterator itEnd = m_connected_slots.end();
+
+        while(it != itEnd)
+        {
+            itNext = it;
+            ++itNext;
+
+            (*it)->SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6, a7, a8);
+
+            it = itNext;
+        }
+    }
+
+    void operator()(arg1_type a1, arg2_type a2, arg3_type a3, arg4_type a4,
+                    arg5_type a5, arg6_type a6, arg7_type a7, arg8_type a8)
+    {
+        SIGSLOT_EMIT(a1, a2, a3, a4, a5, a6, a7, a8);
+    }
+};
+
+namespace impl
+{
+
+struct empty {};
+
+} // namespace impl
+
+// signal can be used instead of the numbered signalN classes.
+// For example:
+//
+//     sigslot::signal<int, double> signal;
+//
+// instead of
+//
+//     sigslot::signal2<int, double> signal;
+template<typename A1 = impl::empty, typename A2 = impl::empty,
+         typename A3 = impl::empty, typename A4 = impl::empty,
+         typename A5 = impl::empty, typename A6 = impl::empty,
+         typename A7 = impl::empty, typename A8 = impl::empty>
+struct signal;
+
+template<>
+struct signal<>: public signal0<>
+{};
+
+template<typename A1>
+struct signal<A1>: public signal1<A1>
+{};
+
+template<typename A1, typename A2>
+struct signal<A1, A2>: public signal2<A1, A2>
+{};
+
+template<typename A1, typename A2, typename A3>
+struct signal<A1, A2, A3>: public signal3<A1, A2, A3>
+{};
+
+template<typename A1, typename A2, typename A3, typename A4>
+struct signal<A1, A2, A3, A4>: public signal4<A1, A2, A3, A4>
+{};
+
+template<typename A1, typename A2, typename A3, typename A4, typename A5>
+struct signal<A1, A2, A3, A4, A5>: public signal5<A1, A2, A3, A4, A5>
+{};
+
+template<typename A1, typename A2, typename A3, typename A4, typename A5,
+         typename A6>
+struct signal<A1, A2, A3, A4, A5, A6>: public signal6<A1, A2, A3, A4, A5, A6>
+{};
+
+template<typename A1, typename A2, typename A3, typename A4, typename A5,
+         typename A6, typename A7>
+struct signal<A1, A2, A3, A4, A5, A6, A7>:
+    public signal7<A1, A2, A3, A4, A5, A6, A7>
+{};
+
+template<typename A1, typename A2, typename A3, typename A4, typename A5,
+         typename A6, typename A7, typename A8>
+struct signal: public signal8<A1, A2, A3, A4, A5, A6, A7, A8>
+{};
+
+// Some convenience methods for signal handling.
+template<typename Derived>
+struct has_signals
+{
+    virtual ~has_signals() {}
+
+    // Connect a signal to a slot on the specified destination object.
+    template<typename Signal, typename Dst, typename Sig>
+    static inline void connect(Signal &signal, Dst *dst, Sig memfun)
+    {
+        signal.connect(dst, memfun);
+    }
+
+    // Connect a signal to a slot on 'this'.
+    template<typename Signal, typename Sig>
+    inline void connect(Signal &signal, Sig memfun)
+    {
+        Derived* dst = static_cast<Derived*>(this);
+        connect(signal, dst, memfun);
+    }
+};
+
+}; // namespace sigslot
+
+#endif // __SIGSLOT_H__
\ No newline at end of file