ssa_reader.h

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/*
    Copyright (C) 2016 Carl Hetherington <cth@carlh.net>
 
    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 2 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, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
*/
 
#ifndef LIBSUB_SSA_READER_H
#define LIBSUB_SSA_READER_H
 
#include "reader.h"
#include <boost/function.hpp>
 
namespace sub {
 
class SSAReader : public Reader
{
public:
    SSAReader (FILE* f);
    SSAReader (std::string subs);
 
    class Context
    {
    public:
        Context(int play_res_x_, int play_res_y_, Colour primary_colour_, int left_margin_ = 0, int right_margin_ = 0)
            : play_res_x(play_res_x_)
            , play_res_y(play_res_y_)
            , primary_colour(primary_colour_)
            , left_margin(left_margin_)
            , right_margin(right_margin_)
        {}
 
        int play_res_x;
        int play_res_y;
        Colour primary_colour;
        int left_margin;
        int right_margin;
 
        void update_horizontal_position(RawSubtitle& sub) const;
    };
 
    static std::vector<RawSubtitle> parse_line(RawSubtitle base, std::string line, Context const& context);
    static void parse_tag(RawSubtitle& sub, std::string style, Context const& context);
 
private:
    void read (boost::function<boost::optional<std::string> ()> get_line);
    Time parse_time (std::string t) const;
};
 
}
 
#endif