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e9780fe317
* Bidi.{h,cpp}:
- isWithinRtlParagraph(): new helper function.
* Text2.cpp: use function above for cursor up and down instead of needReverseDirection() which is about cursor left and right.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18364 a592a061-630c-0410-9148-cb99ea01b6c8
78 lines
1.5 KiB
C++
78 lines
1.5 KiB
C++
// -*- C++ -*-
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/**
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* \file Bidi.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Dekel Tsur
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef BIDI_H
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#define BIDI_H
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#include "support/types.h"
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#include "Cursor.h"
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#include <vector>
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namespace lyx {
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class Buffer;
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class Paragraph;
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class Row;
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class Font;
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/// bidi stuff
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class Bidi {
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public:
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///
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bool isBoundary(Buffer const &, Paragraph const & par,
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pos_type pos) const;
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///
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bool isBoundary(Buffer const &, Paragraph const & par,
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pos_type pos, Font const & font) const;
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///
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pos_type log2vis(pos_type pos) const;
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/** Maps positions in the logical string to positions
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* in visual string.
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*/
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pos_type vis2log(pos_type pos) const;
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///
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pos_type level(pos_type pos) const;
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///
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bool inRange(pos_type pos) const;
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/// same_direction?
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bool same_direction() const;
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///
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void computeTables(Paragraph const & par,
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Buffer const &, Row const & row);
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private:
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///
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bool same_direction_;
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///
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std::vector<pos_type> log2vis_list_;
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/** Maps positions in the visual string to positions
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* in logical string.
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*/
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std::vector<pos_type> vis2log_list_;
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///
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std::vector<pos_type> levels_;
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///
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pos_type start_;
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///
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pos_type end_;
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};
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/// Should interpretation of the arrow keys be reversed?
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bool reverseDirectionNeeded(Cursor const & cur);
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/// Is current paragraph in RTL mode?
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bool isWithinRtlParagraph(Cursor const & cur);
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} // namespace lyx
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#endif // BIDI_H
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