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Document the Bidi class a bit

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This is from information given by the auther (Dekel Tsur).
This commit is contained in:
Jean-Marc Lasgouttes 2013-06-28 15:18:17 +02:00
parent ef4018f68e
commit 878a86ff46
1 changed files with 13 additions and 5 deletions
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18
src/Bidi.h
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@ -35,19 +35,27 @@ public:
/// ///
bool isBoundary(Buffer const &, Paragraph const & par, bool isBoundary(Buffer const &, Paragraph const & par,
pos_type pos, Font const & font) const; pos_type pos, Font const & font) const;
/// /** Maps positions in the visual string to positions
* in logical string.
*/
pos_type log2vis(pos_type pos) const; pos_type log2vis(pos_type pos) const;
/** Maps positions in the logical string to positions /** Maps positions in the logical string to positions
* in visual string. * in visual string.
*/ */
pos_type vis2log(pos_type pos) const; pos_type vis2log(pos_type pos) const;
/// /*
* The text direction at logical position \param pos.
* Possible values are
* 0: left-to-right text
* 1: right-to-left text
* 2: left-to-right text in right-to-left language (aka numbers)
*/
pos_type level(pos_type pos) const; pos_type level(pos_type pos) const;
/// /// Is logical position covered by this row?
bool inRange(pos_type pos) const; bool inRange(pos_type pos) const;
/// same_direction? /// Is the whole row in the same direction as the paragraph?
bool same_direction() const; bool same_direction() const;
/// /// Compute the data for visual positions.
void computeTables(Paragraph const & par, void computeTables(Paragraph const & par,
Buffer const &, Row const & row); Buffer const &, Row const & row);
private: private: