Merge "Bidirectional conversion table for multiline." into devel/master

diff --combined dali-toolkit/internal/text/text-controller-impl.cpp
index d4d8fdc,29b5718..800a721
--- 1/dali-toolkit/internal/text/text-controller-impl.cpp
--- 2/dali-toolkit/internal/text/text-controller-impl.cpp
+++ b/dali-toolkit/internal/text/text-controller-impl.cpp
@@@ -154,19 -154,16 +154,19 @@@ bool Controller::Impl::ProcessInputEven
      GetCursorPosition( mEventData->mPrimaryCursorPosition,
                         cursorInfo );
  
 -    if( mEventData->mScrollAfterUpdatePosition )
 +    // Scroll first the text after delete ...
 +    if( mEventData->mScrollAfterDelete )
      {
 -      ScrollToMakePositionVisible( cursorInfo.primaryPosition );
 -      mEventData->mScrollAfterUpdatePosition = false;
 +      ScrollTextToMatchCursor( cursorInfo );
      }
 -    else if( mEventData->mScrollAfterDelete )
 +
 +    // ... then, text can be scrolled to make the cursor visible.
 +    if( mEventData->mScrollAfterUpdatePosition )
      {
 -      ScrollTextToMatchCursor( cursorInfo );
 -      mEventData->mScrollAfterDelete = false;
 +      ScrollToMakePositionVisible( cursorInfo.primaryPosition );
      }
 +    mEventData->mScrollAfterUpdatePosition = false;
 +    mEventData->mScrollAfterDelete = false;
  
      UpdateCursorPosition( cursorInfo );
  
@@@ -1305,7 -1302,6 +1305,7 @@@ void Controller::Impl::OnSelectEvent( c
  
      mEventData->mUpdateLeftSelectionPosition = true;
      mEventData->mUpdateRightSelectionPosition = true;
 +    mEventData->mUpdateCursorPosition = false;
  
      mEventData->mScrollAfterUpdatePosition = ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition );
    }
@@@ -1374,7 -1370,12 +1374,7 @@@ void Controller::Impl::RetrieveSelectio
  
        // Scroll after delete.
        mEventData->mPrimaryCursorPosition = handlesCrossed ? mEventData->mRightSelectionPosition : mEventData->mLeftSelectionPosition;
 -      mEventData->mScrollAfterDelete = true;
      }
 -    // Udpade the cursor position and the decorator.
 -    // Scroll after the position is updated if is not scrolling after delete.
 -    mEventData->mUpdateCursorPosition = true;
 -    mEventData->mScrollAfterUpdatePosition = !mEventData->mScrollAfterDelete;
      mEventData->mDecoratorUpdated = true;
    }
  }
@@@ -1929,7 -1930,7 +1929,7 @@@ CharacterIndex Controller::Impl::GetClo
      return logicalIndex;
    }
  
-   // Find which line is closest
+   // Find which line is closest.
    const LineIndex lineIndex = GetClosestLine( visualY );
    const LineRun& line = mVisualModel->mLines[lineIndex];
  
@@@ -1950,6 -1951,9 +1950,9 @@@
    const CharacterIndex endCharacter   = line.characterRun.characterIndex + line.characterRun.numberOfCharacters;
    DALI_ASSERT_DEBUG( endCharacter <= mLogicalModel->mText.Count() && "Invalid line info" );
  
+   // Whether this line is a bidirectional line.
+   const bool bidiLineFetched = mLogicalModel->FetchBidirectionalLineInfo( startCharacter );
+ 
    // Whether there is a hit on a glyph.
    bool matched = false;
  
@@@ -1959,7 -1963,7 +1962,7 @@@
    for( ; !matched && ( visualIndex < endCharacter ); ++visualIndex )
    {
      // The character in logical order.
-     const CharacterIndex characterLogicalOrderIndex = mLogicalModel->GetLogicalCharacterIndex( visualIndex );
+     const CharacterIndex characterLogicalOrderIndex = ( bidiLineFetched ? mLogicalModel->GetLogicalCharacterIndex( visualIndex ) : visualIndex );
  
      // Get the script of the character.
      const Script script = mLogicalModel->GetScript( characterLogicalOrderIndex );
@@@ -1973,7 -1977,7 +1976,7 @@@
      {
        // Get the first character/glyph of the group of glyphs.
        const CharacterIndex firstVisualCharacterIndex = 1u + visualIndex - numberOfCharacters;
-       const CharacterIndex firstLogicalCharacterIndex = mLogicalModel->GetLogicalCharacterIndex( firstVisualCharacterIndex );
+       const CharacterIndex firstLogicalCharacterIndex = ( bidiLineFetched ? mLogicalModel->GetLogicalCharacterIndex( firstVisualCharacterIndex ) : firstVisualCharacterIndex );
        const GlyphIndex firstLogicalGlyphIndex = *( charactersToGlyphBuffer + firstLogicalCharacterIndex );
  
        // Get the metrics for the group of glyphs.
@@@ -2023,7 -2027,7 +2026,7 @@@
      visualIndex = endCharacter;
    }
  
-   logicalIndex = mLogicalModel->GetLogicalCursorIndex( visualIndex );
+   logicalIndex = ( bidiLineFetched ? mLogicalModel->GetLogicalCursorIndex( visualIndex ) : visualIndex );
    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex );
  
    DALI_ASSERT_DEBUG( ( logicalIndex <= mLogicalModel->mText.Count() && logicalIndex >= 0 ) && "GetClosestCursorIndex - Out of bounds index" );
@@@ -2453,10 -2457,8 +2456,10 @@@ void Controller::Impl::ClampVerticalScr
  
  void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position )
  {
 +  const float cursorWidth = mEventData->mDecorator ? mEventData->mDecorator->GetCursorWidth() : 0.f;
 +
    // position is in actor's coords.
 -  const float positionEnd = position.x + ( mEventData->mDecorator ? mEventData->mDecorator->GetCursorWidth() : 0.f );
 +  const float positionEnd = position.x + cursorWidth;
  
    // Transform the position to decorator coords.
    const float alignment = IsShowingRealText() ? mAlignmentOffset.x : 0.f;
@@@ -2483,9 -2485,6 +2486,9 @@@ void Controller::Impl::ScrollTextToMatc
    mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x;
  
    ClampHorizontalScroll( mVisualModel->GetLayoutSize() );
 +
 +  // Makes the new cursor position visible if needed.
 +  ScrollToMakePositionVisible( cursorInfo.primaryPosition );
  }
  
  void Controller::Impl::RequestRelayout()