version.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/>.
 *
 */

//=============================================================================
//
// Class, depicting version of the AGS engine
//
//=============================================================================

#ifndef AGS_SHARED_UTIL_VERSION_H
#define AGS_SHARED_UTIL_VERSION_H

#include "ags/shared/util/string.h"

namespace AGS3 {
namespace AGS {
namespace Shared {

using Shared::String;

struct Version {
    int32_t Major;
    int32_t Minor;
    int32_t Release;
    int32_t Revision;
    String  Special;
    String  BuildInfo;

    String  LongString;
    String  ShortString;
    String  BackwardCompatibleString;

    Version();
    Version(int32_t major, int32_t minor, int32_t release);
    Version(int32_t major, int32_t minor, int32_t release, int32_t revision);
    Version(int32_t major, int32_t minor, int32_t release, int32_t revision, const String &special);
    Version(int32_t major, int32_t minor, int32_t release, int32_t revision, const String &special, const String &build_info);
    Version(const String &version_string);

    inline int32_t AsNumber() const {
        return Major * 10000 + Minor * 100 + Release;
    }

    inline int64_t AsLongNumber() const {
        return (int64_t)Major * 100000000L + (int64_t)Minor * 1000000L + (int64_t)Release * 10000L + Revision;
    }

    inline int32_t AsSmallNumber() const {
        return Major * 100 + Minor;
    }

    void SetFromString(const String &version_string);

    inline bool operator < (const Version &other) const {
        return AsLongNumber() < other.AsLongNumber();
    }

    inline bool operator <= (const Version &other) const {
        return AsLongNumber() <= other.AsLongNumber();
    }

    inline bool operator > (const Version &other) const {
        return AsLongNumber() > other.AsLongNumber();
    }

    inline bool operator >= (const Version &other) const {
        return AsLongNumber() >= other.AsLongNumber();
    }

    inline bool operator == (const Version &other) const {
        return AsLongNumber() == other.AsLongNumber();
    }

    inline bool operator != (const Version &other) const {
        return AsLongNumber() != other.AsLongNumber();
    }

private:
    void MakeString();
};

} // namespace Shared
} // namespace AGS
} // namespace AGS3

#endif