zipfile.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef COMMON_ZIPFILE_H
#define COMMON_ZIPFILE_H

#include <list>
#include <vector>

#include <boost/noncopyable.hpp>

#include "src/common/types.h"
#include "src/common/scopedptr.h"
#include "src/common/ustring.h"

namespace Common {

class SeekableReadStream;

class ZipFile : boost::noncopyable {
public:
    struct File {
        UString name; 
        uint32 index; 
    };

    typedef std::list<File> FileList;

    ZipFile(SeekableReadStream *zip);
    ~ZipFile();

    const FileList &getFiles() const;

    size_t getFileSize(uint32 index) const;

    SeekableReadStream *getFile(uint32 index, bool tryNoCopy = false) const;

private:
    struct IFile {
        uint32 offset; 
        uint32 size;   
    };

    typedef std::vector<IFile> IFileList;

    ScopedPtr<SeekableReadStream> _zip;

    FileList _files;

    IFileList _iFiles;

    void load(SeekableReadStream &zip);

    static SeekableReadStream *decompressFile(SeekableReadStream &zip, uint32 method,
            uint32 compSize, uint32 realSize);

    const IFile &getIFile(uint32 index) const;
    void getFileProperties(SeekableReadStream &zip, const IFile &file,
            uint16 &compMethod, uint32 &compSize, uint32 &realSize) const;
};

} // End of namespace Common

#endif // COMMON_ZIPFILE_H