src/Bidi.h

   1 // -*- C++ -*-
   2 /**
   3  * \file Bidi.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Dekel Tsur
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #ifndef BIDI_H
  13 #define BIDI_H
  14
  15 #include <config.h>
  16
  17 #include "support/types.h"
  18 #include <vector>
  19
  20 class Buffer;
  21 class Paragraph;
  22 class Row;
  23 class LyXFont;
  24
  25
  26 /// bidi stuff
  27 struct  Bidi {
  28         ///
  29         bool isBoundary(Buffer const &, Paragraph const & par,
  30                         lyx::pos_type pos) const;
  31         ///
  32         bool isBoundary(Buffer const &, Paragraph const & par,
  33                                 lyx::pos_type pos, LyXFont const & font) const;
  34         ///
  35         lyx::pos_type log2vis(lyx::pos_type pos) const;
  36         /** Maps positions in the logical string to positions
  37          *  in visual string.
  38          */
  39         lyx::pos_type vis2log(lyx::pos_type pos) const;
  40         ///
  41         lyx::pos_type level(lyx::pos_type pos) const;
  42         ///
  43         bool inRange(lyx::pos_type pos) const;
  44         /// same_direction?
  45         bool same_direction() const;
  46         ///
  47         void computeTables(Paragraph const & par,
  48                            Buffer const &, Row const & row);
  49 private:
  50         ///
  51         bool same_direction_;
  52         ///
  53         std::vector<lyx::pos_type> log2vis_list_;
  54         /** Maps positions in the visual string to positions
  55          *  in logical string.
  56          */
  57         std::vector<lyx::pos_type> vis2log_list_;
  58         ///
  59         std::vector<lyx::pos_type> levels_;
  60         ///
  61         lyx::pos_type start_;
  62         ///
  63         lyx::pos_type end_;
  64 };
  65
  66 #endif // BIDI_H