+ // We have cleared everything including the placeholder-text
+ mImpl->PlaceholderCleared();
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+}
+
+void Controller::TextReplacedEvent()
+{
+ // Reset buffers.
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mLogicalModel->mCharacterDirections.Clear();
+ mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
+ mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
+ mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+}
+
+void Controller::TextInsertedEvent()
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
+
+ // TODO - Optimize this
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mLogicalModel->mCharacterDirections.Clear();
+ mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
+ mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
+ mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+}
+
+void Controller::TextDeletedEvent()
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
+
+ // TODO - Optimize this
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mLogicalModel->mCharacterDirections.Clear();
+ mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
+ mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
+ mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+ mImpl->mVisualModel->mGlyphsToCharacters.Clear();
+ mImpl->mVisualModel->mCharactersToGlyph.Clear();
+ mImpl->mVisualModel->mCharactersPerGlyph.Clear();
+ mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
+ mImpl->mVisualModel->mGlyphPositions.Clear();
+ mImpl->mVisualModel->mLines.Clear();
+ mImpl->mVisualModel->ClearCaches();
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ mImpl->UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ ALIGN |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+
+ // Queue a cursor reposition event; this must wait until after DoRelayout()
+ mImpl->mEventData->mUpdateCursorPosition = true;
+ mImpl->mEventData->mScrollAfterUpdateCursorPosition = true;
+}
+
+bool Controller::DoRelayout( const Size& size,
+ OperationsMask operationsRequired,
+ Size& layoutSize )
+{
+ bool viewUpdated( false );
+
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
+
+ if( LAYOUT & operations )
+ {
+ // Some vectors with data needed to layout and reorder may be void
+ // after the first time the text has been laid out.
+ // Fill the vectors again.
+
+ Length numberOfGlyphs = mImpl->mVisualModel->GetNumberOfGlyphs();
+
+ if( 0u == numberOfGlyphs )