X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Flogical-model-impl.h;h=9f2fa31c00223d0ed9c37ad50819908843c539e2;hp=43ef817cc3a5fdcf5af4236ef235fe29a7de62ea;hb=f1fd8ae285533109596e90f5598e91c5ce009659;hpb=5b3cf0e6742934674bdf62bbe15af00e39eae566 diff --git a/dali-toolkit/internal/text/logical-model-impl.h b/dali-toolkit/internal/text/logical-model-impl.h index 43ef817..9f2fa31 100644 --- a/dali-toolkit/internal/text/logical-model-impl.h +++ b/dali-toolkit/internal/text/logical-model-impl.h @@ -26,7 +26,10 @@ // INTERNAL INCLUDES #include #include +#include #include +#include +#include #include namespace Dali @@ -40,6 +43,7 @@ namespace Text class LogicalModel; typedef IntrusivePtr LogicalModelPtr; +struct InputStyle; /** * @brief A logical text model contains layout independent information. @@ -85,26 +89,93 @@ public: // Visual <--> Logical conversion tables. /** - * @brief Sets the visual to logical and the logical to visual map tables. + * @brief Retrieves the logical cursor index for the given visual cursor index. * - * Replaces any map tables previously set. + * @pre The method FetchBidirectionalLineInfo() must be called before. If the result of FetchBidirectionalLineInfo() is false, + * then the character is not in a bidirectional line and the result will be invalid. * - * @note If the number of runs is zero the bidirectional info buffer is cleared. + * @param[in] visualCursorIndex The visual cursor index. * - * @param[in] bidirectionalInfo Pointer to a buffer with all the bidirectional info runs. - * @param[in] numberOfRuns The number of bidirectional info runs. + * @return The logical cursor index. */ - void SetVisualToLogicalMap( const BidirectionalLineInfoRun* const bidirectionalInfo, - Length numberOfRuns ); + CharacterIndex GetLogicalCursorIndex( CharacterIndex visualCursorIndex ); /** * @brief Retrieves the logical character index for the given visual character index. * + * @pre The method FetchBidirectionalLineInfo() must be called before. If the result of FetchBidirectionalLineInfo() is false, + * then the character is not in a bidirectional line and the result will be invalid. + * * @param[in] visualCharacterIndex The visual character index. * * @return The logical character index. */ - CharacterIndex GetLogicalCharacterIndex( CharacterIndex visualCharacterIndex ) const; + CharacterIndex GetLogicalCharacterIndex( CharacterIndex visualCharacterIndex ); + + /** + * @brief Fetch the bidirectional line info for the given character. + * + * Call GetBidirectionalLineInfo() to retrieve the last fetched line. + * + * @param[in] characterIndex The character index. + * + * @return @e true if the given @e character is in a bidirectional line. + */ + bool FetchBidirectionalLineInfo( CharacterIndex characterIndex ); + + /** + * @brief Retrieves the last fetched bidirectional line info. + * + * @return The index of the bidirectional line info. + */ + BidirectionalLineRunIndex GetBidirectionalLineInfo() const; + + // Text style. + + /** + * @brief Updates the text's style runs with the added or removed text. + * + * @param[in] index The character's index. + * @param[in] numberOfCharacters The number of characters added or removed. If the value is negative the characters are removed. + */ + void UpdateTextStyleRuns( CharacterIndex index, int numberOfCharacters ); + + /** + * @brief Retrieves the text's style for the given character index. + * + * @param[in] index The character index. + * @param[out] style The text's style in the given style. + */ + void RetrieveStyle( CharacterIndex index, InputStyle& style ); + + /** + * @brief Clears the font description runs. + */ + void ClearFontDescriptionRuns(); + + // Paragraphs + + /** + * @brief Creates the paragraph info. + * + * @pre The line break info must be set. + * + * @param[in] startIndex The character from where the paragraph info is set. + * @param[in] numberOfCharacters The number of characters. + */ + void CreateParagraphInfo( CharacterIndex startIndex, + Length numberOfCharacters ); + + /** + * @brief Find the paragraphs which contains the given characters. + * + * @param[in] index The first character's index of the run. + * @param[in] numberOfCharacters The number of characters of the run. + * @param[out] paragraphs Indices to the paragraphs which contain the characters. + */ + void FindParagraphs( CharacterIndex index, + Length numberOfCharacters, + Vector& paragraphs ); protected: @@ -131,14 +202,16 @@ public: Vector mText; Vector mScriptRuns; Vector mFontRuns; + Vector mColorRuns; + Vector mFontDescriptionRuns; Vector mLineBreakInfo; Vector mWordBreakInfo; + Vector mParagraphInfo; Vector mBidirectionalParagraphInfo; - Vector mCharacterDirections; ///< For each character, whether is right to left. ( @e flase is left to right, @e true right to left ). + Vector mCharacterDirections; ///< For each character, whether is right to left. ( @e flase is left to right, @e true right to left ). Vector mBidirectionalLineInfo; - Vector mLogicalToVisualMap; ///< Bidirectional logical to visual conversion table. - Vector mVisualToLogicalMap; ///< Bidirectional visual to logical conversion table. - Vector mVisualToLogicalCursorMap; ///< Bidirectional visual to logical cursor conversion table. + + BidirectionalLineRunIndex mBidirectionalLineIndex; ///< The last fetched bidirectional line info. }; } // namespace Text