YiSignalFreeRawConnection.h

Go to the documentation of this file.

// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_SIGNAL_FREE_RAW_CONNECTION_H_
#define _YI_SIGNAL_FREE_RAW_CONNECTION_H_

#ifndef _YI_SIGNAL_H_
#error "Do not include YiSignalFreeRawConnection.h directly. Include YiSignal.h instead."
#endif

#include "YiSignalBaseConnection.h"

// non-specialized concrete connection type (not defined -- only specializations are used)
template<typename SlotReturnType, typename SlotTypes, typename... SignalTypes>
class CYISignalFreeRawConnection;

template<typename SlotReturnType, typename... SlotTypes, typename... SignalTypes>
class CYISignalFreeRawConnection<SlotReturnType, YiSlotTypesContainer<SlotTypes...>, SignalTypes...> : public CYISignalBaseConnection<SignalTypes...>
{
public:
    typedef SlotReturnType (*const SlotType)(SlotTypes...);

    CYISignalFreeRawConnection(const SlotType &slot, YI_CONNECTION_TYPE connectionType, const CYISignalConnectionID &connectionID = CYISignalConnectionID::CreateUnique()) :
        CYISignalBaseConnection<SignalTypes...>(nullptr, connectionType, connectionID),
        m_pSlot(slot)
    {
    }

    virtual std::unique_ptr<CYISignalAbstractConnection> Clone(CYISignalHandler *pSignalHandler, YI_CONNECTION_TYPE eConnectionType) const override
    {
        YI_UNUSED(pSignalHandler);
        return std::make_unique<CYISignalFreeRawConnection<SlotReturnType, YiSlotTypesContainer<SlotTypes...>, SignalTypes...>>(m_pSlot, eConnectionType, this->GetConnectionID());
    }

    virtual void Emit(const SignalTypes &... args) override
    {
        EmitInternal(args...);
    }

    inline bool IsConnectionTo(const SlotType &slot) const
    {
        return slot == m_pSlot;
    }

protected:
    const SlotType m_pSlot;

private:
    template<typename... ExtraTypes>
    inline void EmitInternal(const SlotTypes &... slotArgs, const ExtraTypes &...)
    {
        (*m_pSlot)(slotArgs...);
    }
};

#endif /* _YI_SIGNAL_FREE_RAW_CONNECTION_H_ */