MediaRes.h

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// MediaRes.h
//
// Copyright (c) 2014, 2016 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 <boost/filesystem/fstream.hpp>

#include "../Util/Config.h"
#include "../Util/OS.h"
#include "../Util/Str.h"

#include "Res.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 Display {

template<class T>
class MediaRes : public Res<T>
{
    using SUPER = Res<T>;

public:
    MediaRes(const Util::OS::path_t &path) : SUPER(), path(path),
        id(std::string("media:") + (const char*)Util::Str::PU(path)) { }
    virtual ~MediaRes() { }

public:
    std::string GetId() const override
    {
        return id;
    }

    std::unique_ptr<std::istream> Open() const override
    {
        namespace fs = boost::filesystem;
        auto cfg = Util::Config::GetInstance();
        return std::unique_ptr<std::istream>(new fs::ifstream(
            cfg->GetMediaPath() / path,
            std::ios_base::in | std::ios_base::binary));
    }

private:
    Util::OS::path_t path;
    std::string id;
};

}  // namespace Display
}  // namespace HoverRace

#undef MR_DllDeclare