X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller-impl.h;h=2f14702ba002fc4b1e3dd27640990799c8dcaa2b;hb=fd3baac4dbdce72b630debdfe7df9bf732ca873f;hp=9ee83cce2a4daa42a43d574cd2211b2a8bfbda14;hpb=c8f181e1ca529f7d92ba638ccedadd7dd51be7eb;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git diff --git a/dali-toolkit/internal/text/text-controller-impl.h b/dali-toolkit/internal/text/text-controller-impl.h index 9ee83cc..2f14702 100644 --- a/dali-toolkit/internal/text/text-controller-impl.h +++ b/dali-toolkit/internal/text/text-controller-impl.h @@ -223,6 +223,63 @@ struct FontDefaults bool sizeDefined:1; ///< Whether the default font's point size is defined. }; +/** + * @brief Stores indices used to update the text. + * Stores the character index where the text is updated and the number of characters removed and added. + * Stores as well indices to the first and the last paragraphs to be updated. + */ +struct TextUpdateInfo +{ + TextUpdateInfo() + : mCharacterIndex( 0u ), + mNumberOfCharactersToRemove( 0u ), + mNumberOfCharactersToAdd( 0u ), + mPreviousNumberOfCharacters( 0u ), + mParagraphCharacterIndex( 0u ), + mRequestedNumberOfCharacters( 0u ), + mStartGlyphIndex( 0u ), + mStartLineIndex( 0u ), + mEstimatedNumberOfLines( 0u ), + mClearAll( true ), + mFullRelayoutNeeded( true ), + mIsLastCharacterNewParagraph( false ) + {} + + ~TextUpdateInfo() + {} + + CharacterIndex mCharacterIndex; ///< Index to the first character to be updated. + Length mNumberOfCharactersToRemove; ///< The number of characters to be removed. + Length mNumberOfCharactersToAdd; ///< The number of characters to be added. + Length mPreviousNumberOfCharacters; ///< The number of characters before the text update. + + CharacterIndex mParagraphCharacterIndex; ///< Index of the first character of the first paragraph to be updated. + Length mRequestedNumberOfCharacters; ///< The requested number of characters. + GlyphIndex mStartGlyphIndex; + LineIndex mStartLineIndex; + Length mEstimatedNumberOfLines; ///< The estimated number of lines. Used to avoid reallocations when layouting. + + bool mClearAll:1; ///< Whether the whole text is cleared. i.e. when the text is reset. + bool mFullRelayoutNeeded:1; ///< Whether a full re-layout is needed. i.e. when a new size is set to the text control. + bool mIsLastCharacterNewParagraph:1; ///< Whether the last character is a new paragraph character. + + void Clear() + { + // Clear all info except the mPreviousNumberOfCharacters member. + mCharacterIndex = static_cast( -1 ); + mNumberOfCharactersToRemove = 0u; + mNumberOfCharactersToAdd = 0u; + mParagraphCharacterIndex = 0u; + mRequestedNumberOfCharacters = 0u; + mStartGlyphIndex = 0u; + mStartLineIndex = 0u; + mEstimatedNumberOfLines = 0u; + mClearAll = false; + mFullRelayoutNeeded = false; + mIsLastCharacterNewParagraph = false; + } +}; + struct Controller::Impl { Impl( ControlInterface& controlInterface ) @@ -239,6 +296,7 @@ struct Controller::Impl mModifyEvents(), mTextColor( Color::BLACK ), mAlignmentOffset(), + mTextUpdateInfo(), mOperationsPending( NO_OPERATION ), mMaximumNumberOfCharacters( 50u ), mRecalculateNaturalSize( true ), @@ -367,10 +425,59 @@ struct Controller::Impl bool IsClipboardEmpty() { bool result( mClipboard && mClipboard.NumberOfItems() ); - return !result; // // If NumberOfItems greater than 0, return false + return !result; // If NumberOfItems greater than 0, return false } /** + * @brief Calculates the start character index of the first paragraph to be updated and + * the end character index of the last paragraph to be updated. + * + * @param[out] numberOfCharacters The number of characters to be updated. + */ + void CalculateTextUpdateIndices( Length& numberOfCharacters ); + + /** + * @brief Helper to clear completely the parts of the model specified by the given @p operations. + * + * @note It never clears the text stored in utf32. + */ + void ClearFullModelData( OperationsMask operations ); + + /** + * @brief Helper to clear completely the parts of the model related with the characters specified by the given @p operations. + * + * @note It never clears the text stored in utf32. + * + * @param[in] startIndex Index to the first character to be cleared. + * @param[in] endIndex Index to the last character to be cleared. + * @param[in] operations The operations required. + */ + void ClearCharacterModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations ); + + /** + * @brief Helper to clear completely the parts of the model related with the glyphs specified by the given @p operations. + * + * @note It never clears the text stored in utf32. + * @note Character indices are transformed to glyph indices. + * + * @param[in] startIndex Index to the first character to be cleared. + * @param[in] endIndex Index to the last character to be cleared. + * @param[in] operations The operations required. + */ + void ClearGlyphModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations ); + + /** + * @brief Helper to clear the parts of the model specified by the given @p operations and from @p startIndex to @p endIndex. + * + * @note It never clears the text stored in utf32. + * + * @param[in] startIndex Index to the first character to be cleared. + * @param[in] endIndex Index to the last character to be cleared. + * @param[in] operations The operations required. + */ + void ClearModelData( CharacterIndex startIndex, CharacterIndex endIndex, OperationsMask operations ); + + /** * @brief Updates the logical and visual models. * * When text or style changes the model is set with some operations pending. @@ -514,7 +621,7 @@ struct Controller::Impl * * @pre mEventData must not be NULL. (there is a text-input or selection capabilities). * - * @param[in] position A position in decorator coords. + * @param[in] position A position in text coords. * * This method is called after inserting text, moving the cursor with the grab handle or the keypad, * or moving the selection handles. @@ -526,7 +633,7 @@ struct Controller::Impl * * This method is called after deleting text. */ - void ScrollTextToMatchCursor( const CursorInfo& cursorInfo); + void ScrollTextToMatchCursor( const CursorInfo& cursorInfo ); ControlInterface& mControlInterface; ///< Reference to the text controller. LogicalModelPtr mLogicalModel; ///< Pointer to the logical model. @@ -541,6 +648,7 @@ struct Controller::Impl Vector mModifyEvents; ///< Temporary stores the text set until the next relayout. Vector4 mTextColor; ///< The regular text color Vector2 mAlignmentOffset; ///< Vertical and horizontal offset of the whole text inside the control due to alignment. + TextUpdateInfo mTextUpdateInfo; ///< Info of the characters updated. OperationsMask mOperationsPending; ///< Operations pending to be done to layout the text. Length mMaximumNumberOfCharacters; ///< Maximum number of characters that can be inserted.