SignalBase.hpp

/* ***** BEGIN LICENSE BLOCK *****
 * FW4SPL - Copyright (C) IRCAD, 2009-2015.
 * Distributed under the terms of the GNU Lesser General Public License (LGPL) as
 * published by the Free Software Foundation.
 * ****** END LICENSE BLOCK ****** */
#ifndef __FWCOM_SIGNALBASE_HPP__
#define __FWCOM_SIGNALBASE_HPP__

#include <fwCore/BaseObject.hpp>

#include "fwCom/config.hpp"

#include "fwCom/Connection.hpp"

namespace fwCom
{

struct SlotBase;

struct SignalBase : virtual fwCore::BaseObject
{
    typedef SPTR ( SignalBase ) sptr;
    typedef WPTR ( SignalBase )   wptr;
    SignalBase()
    {
    }

    virtual ~SignalBase()
    {
    }

    virtual Connection connect ( SPTR( SlotBase ) slot ) = 0;

    virtual void disconnect ( SPTR( SlotBase ) slot ) = 0;

    virtual size_t getNumberOfConnections() const = 0;

    protected:
        SignalBase( const SignalBase& );

        SignalBase& operator=( const SignalBase& );
};

} // namespace fwCom

#endif /* __FWCOM_SIGNALBASE_HPP__ */