renderprogress.h

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/* === S Y N F I G ========================================================= */
/* ========================================================================= */

#ifndef __SYNFIG_RENDERPROGRESS_H
#define __SYNFIG_RENDERPROGRESS_H

#include <string>
#include <iosfwd>
#include <boost/chrono.hpp>
#include <synfig/general.h>
#include "definitions.h"


class RenderProgress : public synfig::ProgressCallback
{
public:

    RenderProgress();

    virtual bool task(const std::string& taskname);

    virtual bool error(const std::string& task);

    virtual bool warning(const std::string& task);

    virtual bool amount_complete(int scanline, int height);
private:
    std::string taskname_;
    int last_frame_;
    size_t last_printed_line_length_;

    typedef boost::chrono::system_clock Clock;
    typedef boost::chrono::duration<double> Duration;
    Clock::time_point start_timepoint_;
    Clock::time_point last_timepoint_;
    double remaining_rendered_proportion_;

    void printRemainingTime(std::ostream& os, double remaining_seconds) const;

    void printRemainingTime(std::ostream& os,
                            const int seconds, const int minutes,
                            const int hours, const int days,
                            const int weeks) const;
    std::string extendLineToClearRest(std::string line,
                                      size_t last_line_length) const;
};

#endif