nuvie_io_file.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 NUVIE_FILES_NUVIE_IO_FILE_H
#define NUVIE_FILES_NUVIE_IO_FILE_H

#include "ultima/shared/std/string.h"
#include "ultima/nuvie/files/nuvie_io.h"
#include "common/file.h"
#include "common/memstream.h"
#include "common/savefile.h"

namespace Ultima {
namespace Nuvie {

class NuvieIOFile : public NuvieIO {
public:
    NuvieIOFile() {}
    ~NuvieIOFile() override {}

    virtual bool open(const Common::Path &filename) {
        return false;
    };
};

class NuvieIOFileRead : public NuvieIOFile {
private:
    Common::SeekableReadStream *_file;
    Common::File _srcFile;
public:
    NuvieIOFileRead() : NuvieIOFile(), _file(nullptr) {}
    ~NuvieIOFileRead() override;

    bool open(const Common::Path &filename) override;
    virtual bool open(Common::InSaveFile *saveFile);
    void close() override;
    void seek(uint32 new_pos) override;

    uint8 read1() override;
    uint16 read2() override;
    uint32 read4() override;

    bool readToBuf(unsigned char *buf, uint32 buf_size) override;

    bool isOpen() const {
        return _file != nullptr;
    }
};

class NuvieIOFileWrite : public NuvieIOFile {
private:
    Common::SeekableWriteStream *_file;
    Common::DumpFile _dumpFile;
    Common::OutSaveFile *_saveFile;
    Common::MemoryWriteStreamDynamic _saveFileData;
    Common::String _description;
    bool _isAutosave;
protected:
    bool isOpen() const {
        return _file != nullptr;
    }
public:
    NuvieIOFileWrite();
    ~NuvieIOFileWrite() override;
    bool open(const Common::Path &filename) override;
    bool open(const Common::String &filename, bool isAutosave);
    void close() override;
    void seek(uint32 new_pos) override;

    bool write1(uint8 src) override;
    bool write2(uint16 src) override;
    bool write4(uint32 src) override;
    void writeDesc(const Common::String &desc) {
        _description = desc;
    }

    uint32 writeBuf(const unsigned char *src, uint32 src_size) override;
    uint32 write(NuvieIO *src) override;
};

} // End of namespace Nuvie
} // End of namespace Ultima

#endif