Locale.h

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// Locale.h
//
// Copyright (c) 2015 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied.
//
// See the License for the specific language governing permissions
// and limitations under the License.

#pragma once

#include <locale>

#include "OS.h"

#if defined(_WIN32) && defined(HR_ENGINE_SHARED)
#   ifdef MR_ENGINE
#       define MR_DllDeclare   __declspec( dllexport )
#   else
#       define MR_DllDeclare   __declspec( dllimport )
#   endif
#else
#   define MR_DllDeclare
#endif

namespace HoverRace {
    namespace Util {
        namespace yaml {
            class Emitter;
            class MapNode;
        }
    }
}

namespace HoverRace {
namespace Util {

class Locale
{
public:
    Locale(const OS::path_t &path, const std::string &domain);

public:
    static std::string NormalizeId(const std::string &s);

public:
    void RequestPreferredLocale();

    void RequestLocale(const std::string &id);

    const boost::optional<std::string> &GetSelectedLocaleId() const { return selectedLocaleId; }

    const std::string &IdToName(const std::string &id) const;

private:
    using locales_t = std::map<std::string, std::string>;

    void ScanLocales();

public:
    // STL-like iteration.
    using iterator = locales_t::iterator;
    using const_iterator = locales_t::const_iterator;
    using value_type = locales_t::value_type;
    const_iterator begin() const { return cbegin(); }
    const_iterator end() const { return cend(); }
    const_iterator cbegin() const;
    const_iterator cend() const;

private:
    OS::path_t path;
    std::string domain;
    boost::optional<std::string> selectedLocaleId;
    locales_t availableLocales;  
};

}  // namespace Util
}  // namespace HoverRace

#undef MR_DllDeclare