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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 TITANIC_MESSAGE_TARGET_H
#define TITANIC_MESSAGE_TARGET_H
#include "titanic/core/saveable_object.h"
namespace Titanic {
class CMessageTarget;
class CMessage;
typedef bool (CMessageTarget::*PMSG)(CMessage *msg);
struct MSGMAP_ENTRY {
PMSG _fn;
const ClassDef * const *_class;
};
struct MSGMAP {
const MSGMAP *(* pFnGetBaseMap)();
const MSGMAP_ENTRY *lpEntries;
};
#define DECLARE_MESSAGE_MAP \
protected: \
static const MSGMAP *getThisMessageMap(); \
virtual const MSGMAP *getMessageMap() const
#define BEGIN_MESSAGE_MAP(theClass, baseClass) \
const MSGMAP *theClass::getMessageMap() const \
{ return getThisMessageMap(); } \
const MSGMAP *theClass::getThisMessageMap() \
{ \
typedef theClass ThisClass; \
typedef baseClass TheBaseClass; \
typedef bool (theClass::*FNPTR)(CMessage *msg); \
static const MSGMAP_ENTRY _messageEntries[] = {
#define ON_MESSAGE(msgClass) \
{ static_cast<PMSG>((FNPTR)&ThisClass::msgClass), &C##msgClass::_type },
#define END_MESSAGE_MAP() \
{ (PMSG)nullptr, nullptr } \
}; \
static const MSGMAP messageMap = \
{ &TheBaseClass::getThisMessageMap, &_messageEntries[0] }; \
return &messageMap; \
}
#define EMPTY_MESSAGE_MAP(theClass, baseClass) \
const MSGMAP *theClass::getMessageMap() const \
{ return getThisMessageMap(); } \
const MSGMAP *theClass::getThisMessageMap() \
{ \
typedef baseClass TheBaseClass; \
static const MSGMAP_ENTRY _messageEntries[] = { \
{ (PMSG)nullptr, nullptr } \
}; \
static const MSGMAP messageMap = \
{ &TheBaseClass::getThisMessageMap, &_messageEntries[0] }; \
return &messageMap; \
} \
enum { DUMMY }
class CMessageTarget: public CSaveableObject {
DECLARE_MESSAGE_MAP;
public:
CLASSDEF;
/**
* Save the data for the class to file
*/
virtual void save(SimpleFile *file, int indent);
/**
* Load the data for the class from file
*/
virtual void load(SimpleFile *file);
};
} // End of namespace Titanic
#endif /* TITANIC_MESSAGE_TARGET_H */
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