source: code/branches/tutorial/src/libraries/core/EventIncludes.h @ 7501

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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.
 *
 *   Author:
 *      Fabian 'x3n' Landau
 *   Co-authors:
 *      ...
 *
 */

#ifndef _EventIncludes_H__
#define _EventIncludes_H__

#include "CorePrereqs.h"
#include "Executor.h"
#include "XMLPort.h"

/**
    @brief Defines a new event state (a state of the object which can be changed by events).

    @param classname    The name of this class
    @param subclassname Usually BaseObject - if different, only instances of this class can send events to this object
    @param statename    The name (string) of this state
    @param function     The function which should be used to set the state
    @param xmlelement   Argument for XMLPort
    @param mode         Argument for XMLPort
*/
#define XMLPortEventState(classname, subclassname, statename, function, xmlelement, mode) \
    orxonox::EventState* containername##function = this->getEventState(statename); \
    if (!containername##function) \
    { \
        containername##function = new orxonox::EventState(orxonox::createFunctor(&classname::function, this), orxonox::ClassIdentifier<subclassname>::getIdentifier()); \
        this->addEventState(statename, containername##function); \
    } \
    XMLPortEventStateIntern(xmlportevent##function, classname, statename, xmlelement, mode)

/**
    @brief Like XMLPortEventState but with additional template arguments to identify the function of the state (if ambiguous).
*/
#define XMLPortEventStateTemplate(classname, subclassname, statename, function, xmlelement, mode, ...) \
    orxonox::EventState* containername##function = this->getEventState(statename); \
    if (!containername##function) \
    { \
        containername##function = new orxonox::EventState(orxonox::createFunctor<classname, __VA_ARGS__ >(&classname::function, this), orxonox::ClassIdentifier<subclassname>::getIdentifier()); \
        this->addEventState(statename, containername##function); \
    } \
    XMLPortEventStateIntern(xmlportevent##function, classname, statename, xmlelement, mode)

#define XMLPortEventStateIntern(name, classname, statename, xmlelement, mode) \
    static orxonox::ExecutorMember<classname>* xmlsetfunctor##name = (orxonox::ExecutorMember<classname>*)&orxonox::createExecutor(orxonox::createFunctor(&classname::addEventSource), std::string( #classname ) + "::" + "addEventSource" + '(' + statename + ')')->setDefaultValue(1, statename); \
    static orxonox::ExecutorMember<classname>* xmlgetfunctor##name = (orxonox::ExecutorMember<classname>*)&orxonox::createExecutor(orxonox::createFunctor(&classname::getEventSource), std::string( #classname ) + "::" + "getEventSource" + '(' + statename + ')')->setDefaultValue(1, statename); \
    XMLPortObjectGeneric(xmlport##name, classname, orxonox::BaseObject, statename, xmlsetfunctor##name, xmlgetfunctor##name, xmlelement, mode, false, true)


/**
    @brief Defines a new event name for a class. Named events can only have names which were defined with this macro.

    @param classname The name of the class
    @param name      The name of the event
*/
#define CreateEventName(classname, name) \
    static std::string eventname##classname##name = #name

/**
    @brief This macro is needed to fire an event with this name. The event name must previously be declared with @ref CreateEventName.
*/
#define FireEventName(classname, name) \
    eventname##classname##name

#endif /* _EventIncludes_H__ */