TrackDownloadDialog.h

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#ifdef HR_LEGACY_BUILD

// TrackDownloadDialog.h
// Header for the track downloader.
//
// Copyright (c) 2008, 2009 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 <string>

typedef void CURL;

namespace HoverRace {
namespace Client {

class TrackDownloadDialog
{
    private:
        TrackDownloadDialog() { }
    public:
        TrackDownloadDialog(const std::string &name);
        ~TrackDownloadDialog();

        bool ShowModal(HINSTANCE hinst, HWND parent);

    private:
        enum state_t {
            ST_INITIALIZING,
            ST_DOWNLOADING,
            ST_EXTRACTING,
            ST_FINISHED,
            ST_LAST
        };
        const char **GetStateNames();
        void SetState(state_t st);
        void UpdateDialogProgress(HWND hwnd);

        void ThreadProc();

        BOOL DlgProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
        static BOOL CALLBACK DlgFunc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);

        size_t WriteProc(void *ptr, size_t size, size_t nmemb);
        static size_t WriteFunc(void *ptr, size_t size, size_t nmemb, void *stream);
        size_t ProgressProc(double dlTotal, double dlNow);
        static size_t ProgressFunc(void *clientp, double dlTotal, double dlNow, double, double);

        bool ExtractTrackFile();

    private:
        std::string name;
        std::string trackFilename;
        HWND dlgHwnd;
        CURL *trackDl;
        char *curlErrorBuf;
        volatile state_t state;
        volatile bool cancel;

        typedef unsigned char dlBuf_t;
        dlBuf_t *dlBuf;
        volatile size_t bufSize;
        size_t bufCapacity;
        volatile size_t bufTotal;
};

}  // namespace Client
}  // namespace HoverRace
#endif