EventCallback.h

/*
 * This file is part of libsidplayfp, a SID player engine.
 *
 *  Copyright (C) 2011-2015 Leandro Nini
 *  Copyright (C) 2009 Antti S. Lankila
 *  Copyright (C) 2001 Simon White
 *
 *  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 EVENTCALLBACK_H
#define EVENTCALLBACK_H
 
#include "Event.h"
 
#include "sidcxx11.h"
 
 
namespace libsidplayfp
{
 
template< class This >
class EventCallback final : public Event
{
private:
    using Callback = void (This::*)();
 
private:
    This &m_this;
    Callback const m_callback;
 
private:
    void event() override { (m_this.*m_callback)(); }
 
public:
    EventCallback(const char* const name, This &object, Callback callback) :
        Event(name),
        m_this(object),
        m_callback(callback)
    {}
};
 
template< class This, void(This::*Callback)() >
class FastEventCallback final : public Event
{
private:
    This &m_this;
 
private:
    void event() override { (m_this.*Callback)(); }
 
public:
    FastEventCallback(const char* const name, This &object) :
       Event(name),
       m_this(object)
    {}
};
 
}
 
#endif // EVENTCALLBACK_H