X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=base%2Fdali-toolkit%2Finternal%2Fcontrols%2Ftext-input%2Ftext-input-impl.cpp;h=9b172299cefe442cacb635aad7c4e5c0c908fdbf;hp=d7eed9598140f7957ed25bdc9b3cf13ef2a29bf7;hb=refs%2Ftags%2Fsubmit%2Ftizen_mobile%2F20141120.000000;hpb=7d06085244b3d0ff90ac7bed11fc816931ed3565 diff --git a/base/dali-toolkit/internal/controls/text-input/text-input-impl.cpp b/base/dali-toolkit/internal/controls/text-input/text-input-impl.cpp index d7eed95..9b17229 100644 --- a/base/dali-toolkit/internal/controls/text-input/text-input-impl.cpp +++ b/base/dali-toolkit/internal/controls/text-input/text-input-impl.cpp @@ -86,36 +86,6 @@ enum SelectionState SelectionFinished ///< Finished selected section }; -/** - * Whether the given style is the default style or not. - * @param[in] style The given style. - * @return \e true if the given style is the default. Otherwise it returns \e false. - */ -bool IsDefaultStyle( const TextStyle& style ) -{ - return DEFAULT_TEXT_STYLE == style; -} - -/** - * Whether the given styled text is using the default style or not. - * @param[in] textArray The given text. - * @return \e true if the given styled text is using the default style. Otherwise it returns \e false. - */ -bool IsTextDefaultStyle( const Toolkit::MarkupProcessor::StyledTextArray& textArray ) -{ - for( Toolkit::MarkupProcessor::StyledTextArray::const_iterator it = textArray.begin(), endIt = textArray.end(); it != endIt; ++it ) - { - const TextStyle& style( (*it).mStyle ); - - if( !IsDefaultStyle( style ) ) - { - return false; - } - } - - return true; -} - std::size_t FindVisibleCharacterLeft( std::size_t cursorPosition, const Toolkit::TextView::CharacterLayoutInfoContainer& characterLayoutInfoTable ) { for( Toolkit::TextView::CharacterLayoutInfoContainer::const_reverse_iterator it = characterLayoutInfoTable.rbegin() + characterLayoutInfoTable.size() - cursorPosition, endIt = characterLayoutInfoTable.rend(); @@ -130,7 +100,7 @@ std::size_t FindVisibleCharacterLeft( std::size_t cursorPosition, const Toolkit: --cursorPosition; } - return 0; + return 0u; } std::size_t FindVisibleCharacterRight( std::size_t cursorPosition, const Toolkit::TextView::CharacterLayoutInfoContainer& characterLayoutInfoTable ) @@ -1072,13 +1042,10 @@ void TextInput::OnKeyInputFocusGained() mClipboard = Clipboard::Get(); // Store handle to clipboard // Now in edit mode we can accept string to paste from clipboard - if( Adaptor::IsAvailable() ) + ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() ); + if ( notifier ) { - ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() ); - if ( notifier ) - { - notifier.ContentSelectedSignal().Connect( this, &TextInput::OnClipboardTextSelected ); - } + notifier.ContentSelectedSignal().Connect( this, &TextInput::OnClipboardTextSelected ); } } @@ -1122,19 +1089,16 @@ void TextInput::OnKeyInputFocusLost() mClipboard.Reset(); // No longer in edit mode so do not want to receive string from clipboard - if( Adaptor::IsAvailable() ) + ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() ); + if ( notifier ) { - ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() ); - if ( notifier ) - { - notifier.ContentSelectedSignal().Disconnect( this, &TextInput::OnClipboardTextSelected ); - } - Clipboard clipboard = Clipboard::Get(); + notifier.ContentSelectedSignal().Disconnect( this, &TextInput::OnClipboardTextSelected ); + } - if ( clipboard ) - { - clipboard.HideClipboard(); - } + Clipboard clipboard = Clipboard::Get(); + if ( clipboard ) + { + clipboard.HideClipboard(); } } @@ -1463,26 +1427,6 @@ void TextInput::OnTextTap(Dali::Actor actor, Dali::TapGesture tap) { // Set the initial cursor position in the tap point. ReturnClosestIndex(tap.localPoint, mCursorPosition ); - - // Create the grab handle. - // TODO Make this a re-usable function. - if ( IsGrabHandleEnabled() ) - { - const Vector3 cursorPosition = GetActualPositionFromCharacterPosition(mCursorPosition); - - CreateGrabHandle(); - - mActualGrabHandlePosition.x = cursorPosition.x; // Set grab handle to be at the cursor position - mActualGrabHandlePosition.y = cursorPosition.y; // Set grab handle to be at the cursor position - mGrabHandle.SetPosition( mActualGrabHandlePosition + UI_OFFSET ); - ShowGrabHandleAndSetVisibility( mIsGrabHandleInScrollArea ); - - } - - // Edit mode started after grab handle created to ensure the signal InputStarted is sent last. - // This is used to ensure if selecting text hides the grab handle then this code is run after grab handle is created, - // otherwise the Grab handle will be shown when selecting. - StartEditMode(); } } @@ -1536,6 +1480,9 @@ void TextInput::OnTextTap(Dali::Actor actor, Dali::TapGesture tap) } } + // Edit mode started after grab handle created to ensure the signal InputStarted is sent last. + // This is used to ensure if selecting text hides the grab handle then this code is run after grab handle is created, + // otherwise the Grab handle will be shown when selecting. if ( createGrabHandle && IsGrabHandleEnabled() ) { const Vector3 cursorPosition = GetActualPositionFromCharacterPosition(mCursorPosition); @@ -1904,7 +1851,7 @@ void TextInput::OnTextViewScrolled( Toolkit::TextView textView, Vector2 scrollPo // Updates the cursor and grab handle position and visibility. if( mGrabHandle || mCursor ) { - cursorSize.height = GetRowRectFromCharacterPosition( GetVisualPosition( mCursorPosition ) ).height; + cursorSize.height = GetRowRectFromCharacterPosition( mCursorPosition ).height; const Vector3 cursorPosition = GetActualPositionFromCharacterPosition(mCursorPosition); mIsCursorInScrollArea = mIsGrabHandleInScrollArea = IsPositionInsideBoundaries( cursorPosition, cursorSize, controlSize ); @@ -1954,7 +1901,7 @@ void TextInput::ScrollTextViewToMakeCursorVisible( const Vector3& cursorPosition { // Scroll the text to make the cursor visible. const Size cursorSize( CURSOR_THICKNESS, - GetRowRectFromCharacterPosition( GetVisualPosition( mCursorPosition ) ).height ); + GetRowRectFromCharacterPosition( mCursorPosition ).height ); // Need to scroll the text to make the cursor visible and to cover the whole text-input area. @@ -2901,13 +2848,15 @@ void TextInput::AdvanceCursor(bool reverse, std::size_t places) } } -void TextInput::DrawCursor(const std::size_t nthChar) +void TextInput::DrawCursor() { + const Size rowRect = GetRowRectFromCharacterPosition( mCursorPosition ); + // Get height of cursor and set its size Size size( CURSOR_THICKNESS, 0.0f ); if( !mTextLayoutInfo.mCharacterLayoutInfoTable.empty() ) { - size.height = GetRowRectFromCharacterPosition( GetVisualPosition( mCursorPosition ) ).height; + size.height = rowRect.height; } else { @@ -2922,7 +2871,7 @@ void TextInput::DrawCursor(const std::size_t nthChar) DALI_ASSERT_DEBUG( mCursorPosition <= mTextLayoutInfo.mCharacterLayoutInfoTable.size() ); - if ( ( mCursorPosition <= mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) ) + if( ( mCursorPosition <= mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) ) { Vector3 altPosition; // Alternate (i.e. opposite direction) cursor position. bool altPositionValid; // Alternate cursor validity flag. @@ -2931,7 +2880,7 @@ void TextInput::DrawCursor(const std::size_t nthChar) SetAltCursorEnabled( altPositionValid ); - if(!altPositionValid) + if( !altPositionValid ) { mCursor.SetPosition( position + UI_OFFSET ); } @@ -2939,13 +2888,12 @@ void TextInput::DrawCursor(const std::size_t nthChar) { size.height *= 0.5f; mCursor.SetSize(size); - mCursor.SetPosition( position + UI_OFFSET - Vector3(0.0f, directionRTL ? 0.0f : size.height, 0.0f) ); + mCursor.SetPosition( position + UI_OFFSET - Vector3( 0.0f, directionRTL ? 0.0f : size.height, 0.0f ) ); // TODO: change this cursor pos, to be the one where the cursor is sourced from. - Size rowSize = GetRowRectFromCharacterPosition( GetVisualPosition( mCursorPosition ) ); - size.height = rowSize.height * 0.5f; + size.height = rowRect.height * 0.5f; mCursorRTL.SetSize(size); - mCursorRTL.SetPosition( altPosition + UI_OFFSET - Vector3(0.0f, directionRTL ? size.height : 0.0f, 0.0f) ); + mCursorRTL.SetPosition( altPosition + UI_OFFSET - Vector3( 0.0f, directionRTL ? size.height : 0.0f, 0.0f ) ); } if( IsScrollEnabled() ) @@ -3023,14 +2971,26 @@ Vector3 TextInput::MoveGrabHandle( const Vector2& displacement ) std::size_t newCursorPosition = 0; ReturnClosestIndex( mActualGrabHandlePosition.GetVectorXY(), newCursorPosition ); - actualHandlePosition = GetActualPositionFromCharacterPosition( newCursorPosition ); + Vector3 altPosition; // Alternate (i.e. opposite direction) cursor position. + bool altPositionValid; // Alternate cursor validity flag. + bool directionRTL; // Need to know direction of primary cursor (in case we have 2 cursors and need to show them differently) + actualHandlePosition = GetActualPositionFromCharacterPosition( newCursorPosition, directionRTL, altPosition, altPositionValid ); + + if( altPositionValid ) + { + // Check which of the positions is the closest. + if( fabsf( altPosition.x - mActualGrabHandlePosition.x ) < fabsf( actualHandlePosition.x - mActualGrabHandlePosition.x ) ) + { + actualHandlePosition = altPosition; + } + } bool handleVisible = true; if( IsScrollEnabled() ) { const Vector3 controlSize = GetControlSize(); - const Size cursorSize = GetRowRectFromCharacterPosition( GetVisualPosition( newCursorPosition ) ); + const Size cursorSize = GetRowRectFromCharacterPosition( newCursorPosition ); // Scrolls the text if the handle is not in a visible position handleVisible = IsPositionInsideBoundaries( actualHandlePosition, cursorSize, @@ -3323,7 +3283,7 @@ Vector3 TextInput::MoveSelectionHandle( SelectionHandleId handleId, const Vector { mCurrentSelectionId = handleId; - cursorSize.height = GetRowRectFromCharacterPosition( GetVisualPosition( newHandlePosition ) ).height; + cursorSize.height = GetRowRectFromCharacterPosition( newHandlePosition ).height; // Restricts the movement of the grab handle inside the boundaries of the text-input. handleVisible = IsPositionInsideBoundaries( actualHandlePosition, cursorSize, @@ -3394,7 +3354,6 @@ Vector3 TextInput::MoveSelectionHandle( SelectionHandleId handleId, const Vector void TextInput::SetSelectionHandlePosition(SelectionHandleId handleId) { - const std::size_t selectionHandlePosition = ( handleId == HandleOne ) ? mSelectionHandleOnePosition : mSelectionHandleTwoPosition; ImageActor selectionHandleActor = ( handleId == HandleOne ) ? mSelectionHandleOne : mSelectionHandleTwo; @@ -3407,7 +3366,7 @@ void TextInput::SetSelectionHandlePosition(SelectionHandleId handleId) if( IsScrollEnabled() ) { const Size cursorSize( CURSOR_THICKNESS, - GetRowRectFromCharacterPosition( GetVisualPosition( selectionHandlePosition ) ).height ); + GetRowRectFromCharacterPosition( selectionHandlePosition ).height ); selectionHandleActor.SetVisible( IsPositionInsideBoundaries( actualHandlePosition, cursorSize, GetControlSize() ) ); @@ -3415,15 +3374,6 @@ void TextInput::SetSelectionHandlePosition(SelectionHandleId handleId) } } -std::size_t TextInput::GetVisualPosition(std::size_t logicalPosition) const -{ - // Note: we're allowing caller to request a logical position of size (i.e. end of string) - // For now the visual position of end of logical string will be end of visual string. - DALI_ASSERT_DEBUG( logicalPosition <= mTextLayoutInfo.mCharacterLogicalToVisualMap.size() ); - - return logicalPosition != mTextLayoutInfo.mCharacterLogicalToVisualMap.size() ? mTextLayoutInfo.mCharacterLogicalToVisualMap[logicalPosition] : mTextLayoutInfo.mCharacterLogicalToVisualMap.size(); -} - void TextInput::GetVisualTextSelection(std::vector& selectedVisualText, std::size_t startSelection, std::size_t endSelection) { std::vector::iterator it = mTextLayoutInfo.mCharacterLogicalToVisualMap.begin(); @@ -3861,7 +3811,7 @@ void TextInput::ShowPopupCutCopyPaste() ShowPopup(); } -void TextInput::SetUpPopupSelection( bool treatWhiteSpaceAsAnyOtherCharacter ) +void TextInput::SetUpPopupSelection( bool showCutButton ) { ClearPopup(); mPopupPanel.CreateOrderedListOfOptions(); // todo Move this so only run when order has changed @@ -3870,7 +3820,7 @@ void TextInput::SetUpPopupSelection( bool treatWhiteSpaceAsAnyOtherCharacter ) { mPopupPanel.TogglePopupButtonOnOff( TextInputPopup::ButtonsSelectAll, true ); mPopupPanel.TogglePopupButtonOnOff( TextInputPopup::ButtonsSelect, true ); - mPopupPanel.TogglePopupButtonOnOff( TextInputPopup::ButtonsCut, treatWhiteSpaceAsAnyOtherCharacter ); + mPopupPanel.TogglePopupButtonOnOff( TextInputPopup::ButtonsCut, showCutButton ); } // if clipboard has valid contents then offer paste option if( mClipboard && mClipboard.NumberOfItems() ) @@ -3948,15 +3898,16 @@ bool TextInput::ReturnClosestIndex(const Vector2& source, std::size_t& closestIn } else { - std::vector::const_iterator it = matchedCharacters.begin(); - std::vector::const_iterator endIt = matchedCharacters.end(); + // 2 Iterate through matching list of y positions and find closest matching X position. bool matched( false ); - // 2 Iterate through matching list of y positions and find closest matching X position. - for( ; it != endIt; ++it ) + // Traverse the characters in the visual order. VCC TODO: check for more than one line. + std::size_t visualIndex = 0u; + const std::size_t matchedCharactersSize = matchedCharacters.size(); + for( ; visualIndex < matchedCharactersSize; ++visualIndex ) { - const Toolkit::TextView::CharacterLayoutInfo& info( *it ); + const Toolkit::TextView::CharacterLayoutInfo& info( *( matchedCharacters.begin() + mTextLayoutInfo.mCharacterVisualToLogicalMap[visualIndex] ) ); if( info.mIsVisible ) { @@ -3977,16 +3928,15 @@ bool TextInput::ReturnClosestIndex(const Vector2& source, std::size_t& closestIn } } - if( it == endIt ) + if( visualIndex == matchedCharactersSize ) { rightToLeftChar = lastRightToLeftChar; } - std::size_t matchCharacterIndex = it - matchedCharacters.begin(); - closestIndex = lineOffset + matchCharacterIndex; + closestIndex = lineOffset + visualIndex; mClosestCursorPositionEOL = false; // reset - if ( it == endIt && !matched ) + if( ( visualIndex == matchedCharactersSize ) && !matched ) { mClosestCursorPositionEOL = true; // Reached end of matched characters in closest line but no match so cursor should be after last character. } @@ -4125,104 +4075,132 @@ Vector3 TextInput::PositionCursorAfterWordWrap( std::size_t characterPosition ) /* Word wrap occurs automatically in TextView when the exceed policy moves a word to the next line when not enough space on current. A newline character is not inserted in this case */ - DALI_ASSERT_DEBUG( !(characterPosition <= 0 )); - Vector3 cursorPosition; - Toolkit::TextView::CharacterLayoutInfo currentCharInfo; - - if ( characterPosition == mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) - { - // end character so use - currentCharInfo = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition - 1 ]; - cursorPosition = Vector3(currentCharInfo.mPosition.x + currentCharInfo.mSize.width, currentCharInfo.mPosition.y, currentCharInfo.mPosition.z) ; - } - else - { - currentCharInfo = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; - } + Toolkit::TextView::CharacterLayoutInfo currentCharInfo = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; - Toolkit::TextView::CharacterLayoutInfo previousCharInfo = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition - 1]; + bool noWrap = true; - // If previous character on a different line then use current characters position - if ( fabsf( (currentCharInfo.mPosition.y - currentCharInfo.mDescender ) - ( previousCharInfo.mPosition.y - previousCharInfo.mDescender) ) > Math::MACHINE_EPSILON_1000 ) + if( characterPosition > 0u ) { - if ( mClosestCursorPositionEOL ) - { - cursorPosition = Vector3(previousCharInfo.mPosition.x + previousCharInfo.mSize.width, previousCharInfo.mPosition.y, previousCharInfo.mPosition.z) ; - } - else + Toolkit::TextView::CharacterLayoutInfo previousCharInfo = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition - 1u ]; + + // If previous character on a different line then use current characters position + if( fabsf( (currentCharInfo.mPosition.y - currentCharInfo.mDescender ) - ( previousCharInfo.mPosition.y - previousCharInfo.mDescender) ) > Math::MACHINE_EPSILON_1000 ) { - cursorPosition = Vector3(currentCharInfo.mPosition); + // VCC TODO: PositionCursorAfterWordWrap currently doesn't work for multiline. Need to check this branch. + if ( mClosestCursorPositionEOL ) + { + cursorPosition = Vector3( previousCharInfo.mPosition.x + previousCharInfo.mSize.width, previousCharInfo.mPosition.y, previousCharInfo.mPosition.z ) ; + } + else + { + cursorPosition = Vector3( currentCharInfo.mPosition ); + } + + noWrap = false; } } - else + + if( noWrap ) { - // Previous character is on same line so use position of previous character plus it's width. - cursorPosition = Vector3(previousCharInfo.mPosition.x + previousCharInfo.mSize.width, previousCharInfo.mPosition.y, previousCharInfo.mPosition.z) ; + // If the character is left to right, the position is the character's position plus its width. + const float ltrOffset = !currentCharInfo.mIsRightToLeftCharacter ? currentCharInfo.mSize.width : 0.f; + + cursorPosition.x = currentCharInfo.mPosition.x + ltrOffset; + cursorPosition.y = currentCharInfo.mPosition.y; } return cursorPosition; } -Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterPosition) const +Vector3 TextInput::GetActualPositionFromCharacterPosition( std::size_t characterPosition ) const { - bool direction(false); + bool direction = false; Vector3 alternatePosition; - bool alternatePositionValid(false); + bool alternatePositionValid = false; return GetActualPositionFromCharacterPosition( characterPosition, direction, alternatePosition, alternatePositionValid ); } -Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterPosition, bool& directionRTL, Vector3& alternatePosition, bool& alternatePositionValid ) const +Vector3 TextInput::GetActualPositionFromCharacterPosition( std::size_t characterPosition, bool& directionRTL, Vector3& alternatePosition, bool& alternatePositionValid ) const { + DALI_ASSERT_DEBUG( ( mTextLayoutInfo.mCharacterLayoutInfoTable.size() == mTextLayoutInfo.mCharacterLogicalToVisualMap.size() ) && + ( mTextLayoutInfo.mCharacterLayoutInfoTable.size() == mTextLayoutInfo.mCharacterVisualToLogicalMap.size() ) && + "TextInput::GetActualPositionFromCharacterPosition. All layout tables must have the same size." ); + Vector3 cursorPosition( 0.f, 0.f, 0.f ); alternatePositionValid = false; directionRTL = false; - if( !mTextLayoutInfo.mCharacterLayoutInfoTable.empty() && !mTextLayoutInfo.mCharacterLogicalToVisualMap.empty() ) + if( !mTextLayoutInfo.mCharacterLayoutInfoTable.empty() ) { - std::size_t visualCharacterPosition; + if( characterPosition == 0u ) + { + // When the cursor position is at the beginning, it should be at the start of the current character. + // If the current character is LTR, then the start is on the right side of the glyph. + // If the current character is RTL, then the start is on the left side of the glyph. + + if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() ) ).mIsVisible ) + { + characterPosition = FindVisibleCharacter( Right, 0u ); + } - // When cursor is not at beginning, consider possibility of - // showing 2 cursors. (whereas at beginning we only ever show one cursor) - if(characterPosition > 0) + const Toolkit::TextView::CharacterLayoutInfo& info = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; + const float rtlOffset = info.mIsRightToLeftCharacter ? info.mSize.width : 0.0f; + + cursorPosition.x = info.mPosition.x + rtlOffset; + cursorPosition.y = info.mPosition.y; + directionRTL = info.mIsRightToLeftCharacter; + } + else if( characterPosition > 0u ) { + // Get the direction of the paragraph. + const std::size_t startCharacterPosition = GetRowStartFromCharacterPosition( characterPosition ); + const bool isParagraphRightToLeft = ( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + startCharacterPosition ) ).mIsRightToLeftCharacter; + + // When cursor is not at beginning, consider possibility of + // showing 2 cursors. (whereas at beginning we only ever show one cursor) + // Cursor position should be the end of the last character. // If the last character is LTR, then the end is on the right side of the glyph. // If the last character is RTL, then the end is on the left side of the glyph. - visualCharacterPosition = mTextLayoutInfo.mCharacterLogicalToVisualMap[ characterPosition - 1 ]; - if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + visualCharacterPosition ) ).mIsVisible ) + --characterPosition; + + if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + characterPosition ) ).mIsVisible ) { - visualCharacterPosition = FindVisibleCharacter( Left, visualCharacterPosition ); + characterPosition = FindVisibleCharacter( Left, characterPosition ); } - Toolkit::TextView::CharacterLayoutInfo info = mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterPosition ]; - if( ( visualCharacterPosition > 0 ) && info.mIsNewParagraphChar && !IsScrollEnabled() ) + Toolkit::TextView::CharacterLayoutInfo info = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; + if( ( characterPosition > 0u ) && info.mIsNewParagraphChar && !IsScrollEnabled() ) { + // VCC TODO : check for a new paragraph character. + // Prevents the cursor to exceed the boundary if the last visible character is a 'new line character' and the scroll is not enabled. const Vector3& size = GetControlSize(); if( info.mPosition.y + info.mSize.height - mDisplayedTextView.GetLineHeightOffset() > size.height ) { - --visualCharacterPosition; + --characterPosition; } - info = mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterPosition ]; + info = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; } - if(!info.mIsNewParagraphChar) + if( !info.mIsNewParagraphChar ) { cursorPosition = PositionCursorAfterWordWrap( characterPosition ); // Get position of cursor/handles taking in account auto word wrap. } else { + // VCC TODO : check for a new paragraph character. + // When cursor points to first character on new line, position cursor at the start of this glyph. - if(characterPosition < mTextLayoutInfo.mCharacterLogicalToVisualMap.size()) + if( characterPosition < mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) { - std::size_t visualCharacterNextPosition = mTextLayoutInfo.mCharacterLogicalToVisualMap[ characterPosition ]; - const Toolkit::TextView::CharacterLayoutInfo& infoNext = mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterNextPosition ]; + const Toolkit::TextView::CharacterLayoutInfo& infoNext = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterPosition ]; const float start( infoNext.mIsRightToLeftCharacter ? infoNext.mSize.width : 0.0f ); cursorPosition.x = infoNext.mPosition.x + start; @@ -4234,12 +4212,12 @@ Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterP // cursor where the new line starts based on the line-justification position. cursorPosition.x = GetLineJustificationPosition(); - if(characterPosition == mTextLayoutInfo.mCharacterLogicalToVisualMap.size()) + if( characterPosition == mTextLayoutInfo.mCharacterLogicalToVisualMap.size() ) { // If this is after the last character, then we can assume that the new cursor // should be exactly one row below the current row. - const Size rowRect(GetRowRectFromCharacterPosition(characterPosition - 1)); + const Size rowRect = GetRowRectFromCharacterPosition( characterPosition - 1u ); cursorPosition.y = info.mPosition.y + rowRect.height; } else @@ -4247,7 +4225,7 @@ Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterP // If this is not after last character, then we can use this row's height. // should be exactly one row below the current row. - const Size rowRect(GetRowRectFromCharacterPosition(characterPosition)); + const Size rowRect = GetRowRectFromCharacterPosition( characterPosition ); cursorPosition.y = info.mPosition.y + rowRect.height; } } @@ -4255,104 +4233,87 @@ Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterP directionRTL = info.mIsRightToLeftCharacter; - // 1. When the cursor is neither at the beginning or the end, - // we can show multiple cursors under situations when the cursor is - // between RTL and LTR text... - if(characterPosition != mTextLayoutInfo.mCharacterLogicalToVisualMap.size()) + if( 1u < mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) { - std::size_t visualCharacterAltPosition = mTextLayoutInfo.mCharacterLogicalToVisualMap[characterPosition]; // VCC TODO: find why in the previous patch it was a -1 here. + // 1. When the cursor is neither at the beginning or the end, + // we can show multiple cursors under situations when the cursor is + // between RTL and LTR text... + if( characterPosition + 1u < mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) + { + std::size_t characterAltPosition = characterPosition + 1u; - DALI_ASSERT_ALWAYS(visualCharacterAltPosition < mTextLayoutInfo.mCharacterLayoutInfoTable.size()); - const Toolkit::TextView::CharacterLayoutInfo& infoAlt = mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterAltPosition ]; + const Toolkit::TextView::CharacterLayoutInfo& infoAlt = mTextLayoutInfo.mCharacterLayoutInfoTable[ characterAltPosition ]; - if(!info.mIsRightToLeftCharacter && infoAlt.mIsRightToLeftCharacter) - { - // Stuation occurs when cursor is at the end of English text (LTR) and beginning of Arabic (RTL) - // Text: [...LTR...]|[...RTL...] - // Cursor pos: ^ - // Alternate cursor pos: ^ - // In which case we need to display an alternate cursor for the RTL text. - - alternatePosition.x = infoAlt.mPosition.x + infoAlt.mSize.width; - alternatePosition.y = infoAlt.mPosition.y; - alternatePositionValid = true; + if(!info.mIsRightToLeftCharacter && infoAlt.mIsRightToLeftCharacter) + { + // Stuation occurs when cursor is at the end of English text (LTR) and beginning of Arabic (RTL) + // Text: [...LTR...]|[...RTL...] + // Cursor pos: ^ + // Alternate cursor pos: ^ + // In which case we need to display an alternate cursor for the RTL text. + + alternatePosition.x = infoAlt.mPosition.x + infoAlt.mSize.width; + alternatePosition.y = infoAlt.mPosition.y; + alternatePositionValid = true; + } + else if(info.mIsRightToLeftCharacter && !infoAlt.mIsRightToLeftCharacter) + { + // Situation occurs when cursor is at end of the Arabic text (LTR) and beginning of English (RTL) + // Text: |[...RTL...] [...LTR....] + // Cursor pos: ^ + // Alternate cursor pos: ^ + // In which case we need to display an alternate cursor for the RTL text. + + alternatePosition.x = infoAlt.mPosition.x; + alternatePosition.y = infoAlt.mPosition.y; + alternatePositionValid = true; + } } - else if(info.mIsRightToLeftCharacter && !infoAlt.mIsRightToLeftCharacter) + else { - // Situation occurs when cursor is at end of the Arabic text (LTR) and beginning of English (RTL) - // Text: |[...RTL...] [...LTR....] - // Cursor pos: ^ - // Alternate cursor pos: ^ - // In which case we need to display an alternate cursor for the RTL text. - - alternatePosition.x = infoAlt.mPosition.x; - alternatePosition.y = infoAlt.mPosition.y; - alternatePositionValid = true; - } - } - else - { - // 2. When the cursor is at the end of the text, - // and we have multi-directional text, - // we can also consider showing mulitple cursors. - // The rule here is: - // If first and last characters on row are different - // Directions, then two cursors need to be displayed. - - // Get first logical glyph on row - std::size_t startCharacterPosition = GetRowStartFromCharacterPosition( characterPosition - 1 ); + // 2. When the cursor is at the end of the text, + // and we have multi-directional text, + // we can also consider showing mulitple cursors. + // The rule here is: + // If first and last characters on row are different + // Directions, then two cursors need to be displayed. + + if( info.mIsRightToLeftCharacter != isParagraphRightToLeft ) + { + // The last character's direction is differernt than the first one of current paragraph. - std::size_t visualCharacterStartPosition = mTextLayoutInfo.mCharacterLogicalToVisualMap[ startCharacterPosition ]; - const Toolkit::TextView::CharacterLayoutInfo& infoStart= mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterStartPosition ]; + // Get first + const Toolkit::TextView::CharacterLayoutInfo& infoStart= mTextLayoutInfo.mCharacterLayoutInfoTable[ GetFirstCharacterWithSameDirection( characterPosition ) ]; - if(info.mIsRightToLeftCharacter && !infoStart.mIsRightToLeftCharacter) - { - // For text Starting as LTR and ending as RTL. End cursor position is as follows: - // Text: [...LTR...]|[...RTL...] - // Cursor pos: ^ - // Alternate cursor pos: ^ - // In which case we need to display an alternate cursor for the RTL text, this cursor - // should be at the end of the given line. - - const Toolkit::TextView::CharacterLayoutInfo& infoAlt = mTextLayoutInfo.mCharacterLayoutInfoTable[ mTextLayoutInfo.mCharacterLayoutInfoTable.size() - 1 ]; - alternatePosition.x = infoAlt.mPosition.x + infoAlt.mSize.width; - alternatePosition.y = infoAlt.mPosition.y; - alternatePositionValid = true; - } - else if(!info.mIsRightToLeftCharacter && infoStart.mIsRightToLeftCharacter) // starting RTL - { - // For text Starting as RTL and ending as LTR. End cursor position is as follows: - // Text: |[...RTL...] [...LTR....] - // Cursor pos: ^ - // Alternate cursor pos: ^ - // In which case we need to display an alternate cursor for the RTL text. - - const Toolkit::TextView::CharacterLayoutInfo& infoAlt = mTextLayoutInfo.mCharacterLayoutInfoTable[ startCharacterPosition ]; - alternatePosition.x = infoAlt.mPosition.x; - alternatePosition.y = infoAlt.mPosition.y; - alternatePositionValid = true; + if(info.mIsRightToLeftCharacter) + { + // For text Starting as LTR and ending as RTL. End cursor position is as follows: + // Text: [...LTR...]|[...RTL...] + // Cursor pos: ^ + // Alternate cursor pos: ^ + // In which case we need to display an alternate cursor for the RTL text, this cursor + // should be at the end of the given line. + + alternatePosition.x = infoStart.mPosition.x + infoStart.mSize.width; + alternatePosition.y = infoStart.mPosition.y; + alternatePositionValid = true; + } + else if(!info.mIsRightToLeftCharacter) // starting RTL + { + // For text Starting as RTL and ending as LTR. End cursor position is as follows: + // Text: |[...RTL...] [...LTR....] + // Cursor pos: ^ + // Alternate cursor pos: ^ + // In which case we need to display an alternate cursor for the RTL text. + + alternatePosition.x = infoStart.mPosition.x; + alternatePosition.y = infoStart.mPosition.y; + alternatePositionValid = true; + } + } } } } // characterPosition > 0 - else if(characterPosition == 0) - { - // When the cursor position is at the beginning, it should be at the start of the current character. - // If the current character is LTR, then the start is on the right side of the glyph. - // If the current character is RTL, then the start is on the left side of the glyph. - visualCharacterPosition = mTextLayoutInfo.mCharacterLogicalToVisualMap[ characterPosition ]; - - if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + visualCharacterPosition ) ).mIsVisible ) - { - visualCharacterPosition = FindVisibleCharacter( Right, visualCharacterPosition ); - } - - const Toolkit::TextView::CharacterLayoutInfo& info = mTextLayoutInfo.mCharacterLayoutInfoTable[ visualCharacterPosition ]; - const float start(info.mIsRightToLeftCharacter ? info.mSize.width : 0.0f); - - cursorPosition.x = info.mPosition.x + start; - cursorPosition.y = info.mPosition.y; - directionRTL = info.mIsRightToLeftCharacter; - } } else { @@ -4405,14 +4366,30 @@ Vector3 TextInput::GetActualPositionFromCharacterPosition(std::size_t characterP return cursorPosition; } -std::size_t TextInput::GetRowStartFromCharacterPosition(std::size_t logicalPosition) const +std::size_t TextInput::GetRowStartFromCharacterPosition( std::size_t logicalPosition ) const { // scan string from current position to beginning of current line to note direction of line - while(logicalPosition) + while( logicalPosition ) + { + logicalPosition--; + if( mTextLayoutInfo.mCharacterLayoutInfoTable[logicalPosition].mIsNewParagraphChar ) + { + logicalPosition++; + break; + } + } + + return logicalPosition; +} + +std::size_t TextInput::GetFirstCharacterWithSameDirection( std::size_t logicalPosition ) const +{ + const bool isRightToLeft = mTextLayoutInfo.mCharacterLayoutInfoTable[logicalPosition].mIsRightToLeftCharacter; + + while( logicalPosition ) { logicalPosition--; - std::size_t visualPosition = GetVisualPosition(logicalPosition); - if(mTextLayoutInfo.mCharacterLayoutInfoTable[visualPosition].mIsNewParagraphChar) + if( isRightToLeft != mTextLayoutInfo.mCharacterLayoutInfoTable[logicalPosition].mIsRightToLeftCharacter ) { logicalPosition++; break; @@ -4429,7 +4406,7 @@ Size TextInput::GetRowRectFromCharacterPosition(std::size_t characterPosition) c return GetRowRectFromCharacterPosition( characterPosition, min, max ); } -Size TextInput::GetRowRectFromCharacterPosition(std::size_t characterPosition, Vector2& min, Vector2& max) const +Size TextInput::GetRowRectFromCharacterPosition( std::size_t characterPosition, Vector2& min, Vector2& max ) const { // if we have no text content, then return position 0,0 with width 0, and height the same as cursor height. if( mTextLayoutInfo.mCharacterLayoutInfoTable.empty() ) @@ -4439,85 +4416,55 @@ Size TextInput::GetRowRectFromCharacterPosition(std::size_t characterPosition, V return max; } - // TODO: This info should be readily available from text-view, we should not have to search hard for it. - Toolkit::TextView::CharacterLayoutInfoContainer::const_iterator begin = mTextLayoutInfo.mCharacterLayoutInfoTable.begin(); - Toolkit::TextView::CharacterLayoutInfoContainer::const_iterator end = mTextLayoutInfo.mCharacterLayoutInfoTable.end(); - - // If cursor is pointing to end of line, then start from last character. - characterPosition = std::min( characterPosition, static_cast(mTextLayoutInfo.mCharacterLayoutInfoTable.size() - 1) ); + DALI_ASSERT_DEBUG( characterPosition <= mTextLayoutInfo.mCharacterLayoutInfoTable.size() ); - Toolkit::TextView::CharacterLayoutInfoContainer::const_iterator it = mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + characterPosition; + // Initializes the min and max position. + const std::size_t initialPosition = ( characterPosition == mTextLayoutInfo.mCharacterLayoutInfoTable.size() ) ? characterPosition - 1u : characterPosition; + min = ( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + initialPosition ) ).mPosition.GetVectorXY(); + max = min; - // 0. Find first a visible character. Draw a cursor beyound text-input bounds is not wanted. - if( !it->mIsVisible ) + bool found = false; + // 1) Find the line where the character is laid-out. + for( Toolkit::TextView::LineLayoutInfoContainer::const_iterator lineIt = mTextLayoutInfo.mLines.begin(), lineEndIt = mTextLayoutInfo.mLines.end(); + !found && ( lineIt != mTextLayoutInfo.mLines.end() ); + ++lineIt ) { - characterPosition = FindVisibleCharacter( Left, characterPosition ); - it = mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + characterPosition; - } - - // Scan characters left and right of cursor, stopping when end of line/string reached or - // y position greater than threshold of reference line. + const Toolkit::TextView::LineLayoutInfo& lineInfo( *lineIt ); - // 1. scan left until we reach the beginning or a different line. - Toolkit::TextView::CharacterLayoutInfoContainer::const_iterator validCharIt = it; - float referenceLine = it->mPosition.y - CHARACTER_THRESHOLD; - // min-x position is the left-most char's left (x) - // max-x position is the right-most char's right (x) - // min-y position is the minimum of all character's top (y) - // max-y position is the maximum of all character's bottom (y+height) - min.y = validCharIt->mPosition.y; - max.y = validCharIt->mPosition.y + validCharIt->mSize.y; + // Index within the whole text to the last character of the current line. + std::size_t lastCharacterOfLine = 0u; - while(true) - { - validCharIt = it; - min.y = std::min(min.y, validCharIt->mPosition.y); - max.y = std::max(max.y, validCharIt->mPosition.y + validCharIt->mSize.y); - - if(it == begin) + Toolkit::TextView::LineLayoutInfoContainer::const_iterator lineNextIt = lineIt + 1u; + if( lineNextIt != lineEndIt ) { - break; + lastCharacterOfLine = (*lineNextIt).mCharacterGlobalIndex - 1u; } - - --it; - - if( (it->mPosition.y < referenceLine) || - (it->mIsNewParagraphChar) || - (!it->mIsVisible) ) + else { - break; + lastCharacterOfLine = mTextLayoutInfo.mCharacterLayoutInfoTable.size() - 1u; } - } - - // info refers to the first character on this line. - min.x = validCharIt->mPosition.x; - - // 2. scan right until we reach end or a different line - it = mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + characterPosition; - referenceLine = it->mPosition.y + CHARACTER_THRESHOLD; - while(it != end) - { - if( (it->mPosition.y > referenceLine) || - (it->mIsNewParagraphChar) || - (!it->mIsVisible) ) + // Check if the given chracter position is within the line. + if( ( lineInfo.mCharacterGlobalIndex <= initialPosition ) && ( initialPosition <= lastCharacterOfLine ) ) { - break; - } + // 2) Get the row rect of all laid-out characters on the line. - validCharIt = it; - min.y = std::min(min.y, validCharIt->mPosition.y); - max.y = std::max(max.y, validCharIt->mPosition.y + validCharIt->mSize.y); - - ++it; - } + // Need to scan all characters of the line because they are in the logical position. + for( Toolkit::TextView::CharacterLayoutInfoContainer::const_iterator it = mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + lineInfo.mCharacterGlobalIndex, + endIt = mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + lastCharacterOfLine + 1u; + it != endIt; + ++it ) + { + const Toolkit::TextView::CharacterLayoutInfo& characterInfo( *it ); - DALI_ASSERT_DEBUG ( validCharIt != end && "validCharIt invalid") + min.x = std::min( min.x, characterInfo.mPosition.x ); + min.y = std::min( min.y, characterInfo.mPosition.y ); + max.x = std::max( max.x, characterInfo.mPosition.x + characterInfo.mSize.width ); + max.y = std::max( max.y, characterInfo.mPosition.y + characterInfo.mSize.height ); + } - if ( validCharIt != end ) - { - // info refers to the last character on this line. - max.x = validCharIt->mPosition.x + validCharIt->mSize.x; + found = true; + } } return Size( max.x - min.x, max.y - min.y ); @@ -4884,9 +4831,10 @@ void TextInput::UpdateLineHeight() } } -std::size_t TextInput::FindVisibleCharacter( const FindVisibleCharacterDirection direction , const std::size_t cursorPosition ) const +std::size_t TextInput::FindVisibleCharacter( FindVisibleCharacterDirection direction , std::size_t cursorPosition ) const { - std::size_t position = 0; + // VCC check if we need do this in the visual order ... + std::size_t position = 0u; const std::size_t tableSize = mTextLayoutInfo.mCharacterLayoutInfoTable.size(); @@ -4896,7 +4844,7 @@ std::size_t TextInput::FindVisibleCharacter( const FindVisibleCharacterDirection { position = FindVisibleCharacterLeft( cursorPosition, mTextLayoutInfo.mCharacterLayoutInfoTable ); - if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + ( tableSize == position ? position - 1 : position ) ) ).mIsVisible ) + if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + ( tableSize == position ? position - 1u : position ) ) ).mIsVisible ) { position = FindVisibleCharacterRight( cursorPosition, mTextLayoutInfo.mCharacterLayoutInfoTable ); } @@ -4905,7 +4853,7 @@ std::size_t TextInput::FindVisibleCharacter( const FindVisibleCharacterDirection case Right: { position = FindVisibleCharacterRight( cursorPosition, mTextLayoutInfo.mCharacterLayoutInfoTable ); - if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + ( tableSize == position ? position - 1 : position ) ) ).mIsVisible ) + if( !( *( mTextLayoutInfo.mCharacterLayoutInfoTable.begin() + ( tableSize == position ? position - 1u : position ) ) ).mIsVisible ) { position = FindVisibleCharacterLeft( cursorPosition, mTextLayoutInfo.mCharacterLayoutInfoTable ); } @@ -4913,7 +4861,7 @@ std::size_t TextInput::FindVisibleCharacter( const FindVisibleCharacterDirection } case ByEnd: { - position = FindVisibleCharacterLeft( 0, mTextLayoutInfo.mCharacterLayoutInfoTable ); + position = FindVisibleCharacterLeft( 0u, mTextLayoutInfo.mCharacterLayoutInfoTable ); break; } default: