Callback1.h

Go to the documentation of this file.

/*
 * Callback1.h
 *
 * Smalltalk like class library for C++
 * Callback method wrapper. Header.
 *
 * Copyright (c) 2005 Milan Cermak
 */
/*
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __CALLBACK1_H
#define __CALLBACK1_H

#include <stlib/Callback.h>
#include <stdio.h>

namespace Core {

template <class ListenerT, typename ReturnT, typename Param1T>
class Callback1 : public Callback<ReturnT>
{
  protected:
    typedef ReturnT (ListenerT::*MethodType)(Param1T);
    ListenerT *_listener;
    MethodType _method;

  public:
    Callback1(ListenerT *listener, MethodType method)
    {
        _listener = listener;
        _method = method;
    }

    /* Accessing protocol */
    virtual int argumentsNumber(void)
    {
        return 1;
    }

    /* Processing protocol */
    virtual ReturnT execute(void)
    {
        return (_listener->*_method)(nil);
    }

    virtual ReturnT executeWith(Object *object)
    {
        return (_listener->*_method)(dynamic_cast<Param1T>(object));
    }
};

}; /* namespace Core */

#endif /* __CALLBACK1_H */

---