installshieldv3_archive.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 COMMON_INSTALLSHIELDV3_ARCHIVE_H
#define COMMON_INSTALLSHIELDV3_ARCHIVE_H

#include "common/archive.h"
#include "common/scummsys.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/hash-str.h"
#include "common/hashmap.h"
#include "common/str.h"

namespace Common {

class InstallShieldV3 : public Common::Archive {
public:
    InstallShieldV3();
    ~InstallShieldV3() override;

    bool open(const Common::Path &filename);
    bool open(const Common::FSNode &node);
    bool open(Common::SeekableReadStream *stream);
    void close();
    bool isOpen() const { return _stream != nullptr; }

    // Common::Archive API implementation
    bool hasFile(const Common::Path &path) const override;
    int listMembers(Common::ArchiveMemberList &list) const override;
    const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
    Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
    char getPathSeparator() const override;

private:
    struct FileEntry {
        uint32 uncompressedSize;
        uint32 compressedSize;
        uint32 offset;
    };

    bool read();

    Common::SeekableReadStream *_stream;

    typedef Common::HashMap<Path, FileEntry, Path::IgnoreCase_Hash, Path::IgnoreCase_EqualTo> FileMap;
    FileMap _map;
};

} // End of namespace Common

#endif