+ else
+ {
+ modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.End() );
+ }
+
+ // Advance the cursor position
+ ++cursorIndex;
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+}
+
+void Controller::DeleteTextEvent()
+{
+ DALI_ASSERT_DEBUG( NULL != mImpl->mTextInput && "Unexpected InsertTextEvent" );
+
+ // TODO - Optimize this
+ mImpl->mLogicalModel->mScriptRuns.Clear();
+ mImpl->mLogicalModel->mFontRuns.Clear();
+ mImpl->mLogicalModel->mLineBreakInfo.Clear();
+ mImpl->mLogicalModel->mWordBreakInfo.Clear();
+ mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
+ mImpl->mVisualModel->mGlyphs.Clear();
+
+ // Delte at current cursor position
+ Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
+ CharacterIndex& cursorIndex = mImpl->mTextInput->mPrimaryCursorPosition;
+
+ if( cursorIndex > 0 &&
+ cursorIndex-1 < modifyText.Count() )
+ {
+ modifyText.Remove( modifyText.Begin() + cursorIndex - 1 );
+
+ // Cursor position retreat
+ --cursorIndex;
+ }
+
+ // The natural size needs to be re-calculated.
+ mImpl->mRecalculateNaturalSize = true;
+
+ // Apply modifications to the model; TODO - Optimize this
+ mImpl->mOperationsPending = ALL_OPERATIONS;
+ UpdateModel( ALL_OPERATIONS );
+ mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
+ UPDATE_ACTUAL_SIZE |
+ REORDER );
+}
+
+void Controller::UpdateModel( OperationsMask operationsRequired )
+{
+ // Calculate the operations to be done.
+ const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
+
+ Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;