saveable_object.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef TITANIC_SAVEABLE_OBJECT_H
#define TITANIC_SAVEABLE_OBJECT_H

#include "common/scummsys.h"
#include "common/array.h"
#include "common/hash-str.h"
#include "common/list.h"
#include "titanic/support/simple_file.h"

namespace Titanic {

class CSaveableObject;

class ClassDef {
public:
    const char *_className;
    ClassDef *_parent;
public:
    ClassDef(const char *className, ClassDef *parent) :
        _className(className), _parent(parent) {}
    virtual ~ClassDef() {}
    virtual CSaveableObject *create();
};

template<typename T>
class TypeTemplate : public ClassDef {
public:
    TypeTemplate(const char *className, ClassDef *parent) :
        ClassDef(className, parent) {}
    CSaveableObject *create() override { return new T(); }
};

#define CLASSDEF \
    static ClassDef *_type; \
    ClassDef *getType() const override { return _type; }

class CSaveableObject {
    typedef CSaveableObject *(*CreateFunction)();
private:
    typedef Common::List<ClassDef *> ClassDefList;
    typedef Common::HashMap<Common::String, CreateFunction> ClassListMap;
    static ClassDefList *_classDefs;
    static ClassListMap *_classList;
public:
    static void initClassList();

    static void freeClassList();

    static CSaveableObject *createInstance(const Common::String &name);
public:
    static ClassDef *_type; \
    virtual ClassDef *getType() const { return _type; }

    virtual ~CSaveableObject() {}

    bool isInstanceOf(const ClassDef *classDef) const;

    virtual void save(SimpleFile *file, int indent);

    virtual void load(SimpleFile *file);

    virtual void saveHeader(SimpleFile *file, int indent);

    virtual void saveFooter(SimpleFile *file, int indent);
};

} // End of namespace Titanic

#endif /* TITANIC_SAVEABLE_OBJECT_H */