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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* 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.
*
* $URL$
* $Id$
*
*/
#ifndef COMMON_SAVEFILE_H
#define COMMON_SAVEFILE_H
#include "common/stdafx.h"
#include "common/scummsys.h"
#include "common/stream.h"
namespace Common {
/**
* A class which allows game engines to load game state data.
* That typically means "save games", but also includes things like the
* IQ points in Indy3.
*/
class InSaveFile : public SeekableReadStream {
};
/**
* A class which allows game engines to save game state data.
* That typically means "save games", but also includes things like the
* IQ points in Indy3.
*/
class OutSaveFile : public WriteStream {
};
/**
* Convenience intermediate class, to be removed.
*/
class SaveFile : public InSaveFile, public OutSaveFile {
public:
};
class SaveFileManager {
public:
virtual ~SaveFileManager() {}
/**
* Open the file with name filename in the given directory for saving.
* @param filename the filename
* @return pointer to an OutSaveFile, or NULL if an error occured.
*/
virtual OutSaveFile *openForSaving(const char *filename) = 0;
/**
* Open the file with name filename in the given directory for loading.
* @param filename the filename
* @return pointer to an InSaveFile, or NULL if an error occured.
*/
virtual InSaveFile *openForLoading(const char *filename) = 0;
/**
* Request a list of available savegames with a given prefix.
* TODO: Document this better!
* TODO: Or even replace it with a better API. For example, one that
* returns a list of strings for all present file names.
*/
virtual void listSavefiles(const char * /* prefix */, bool *marks, int num) = 0;
/**
* Get the path to the save game directory.
* Should only be used for error messages, and not to construct file paths
* from it, since that is highl unportable.
*/
virtual const char *getSavePath() const;
};
class DefaultSaveFileManager : public SaveFileManager {
public:
virtual OutSaveFile *openForSaving(const char *filename);
virtual InSaveFile *openForLoading(const char *filename);
virtual void listSavefiles(const char * /* prefix */, bool *marks, int num);
};
} // End of namespace Common
#endif
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