+void Controller::Impl::RetreiveSelection( std::string& selectedText, bool deleteAfterRetreival )
+{
+ if( mEventData->mLeftSelectionPosition == mEventData->mRightSelectionPosition )
+ {
+ // Nothing to select if handles are in the same place.
+ selectedText="";
+ return;
+ }
+
+ //Get start and end position of selection
+ uint32_t startOfSelectedText = mEventData->mLeftSelectionPosition;
+ uint32_t lengthOfSelectedText = mEventData->mRightSelectionPosition - startOfSelectedText;
+
+ // Validate the start and end selection points
+ if( ( startOfSelectedText >= 0 ) && ( ( startOfSelectedText + lengthOfSelectedText ) <= mLogicalModel->mText.Count() ) )
+ {
+ //Get text as a UTF8 string
+ Vector<Character>& utf32Characters = mLogicalModel->mText;
+
+ Utf32ToUtf8( &utf32Characters[startOfSelectedText], lengthOfSelectedText, selectedText );
+
+ if ( deleteAfterRetreival ) // Only delete text if copied successfully
+ {
+ // Delete text between handles
+ Vector<Character>& currentText = mLogicalModel->mText;
+
+ Vector<Character>::Iterator first = currentText.Begin() + startOfSelectedText;
+ Vector<Character>::Iterator last = first + lengthOfSelectedText;
+ currentText.Erase( first, last );
+ }
+ mEventData->mPrimaryCursorPosition = mEventData->mLeftSelectionPosition;
+ mEventData->mScrollAfterDelete = true;
+ mEventData->mDecoratorUpdated = true;
+ }
+}
+
+bool Controller::Impl::CopyStringToClipboard( std::string& source )
+{
+ //Send string to clipboard
+ return ( mClipboard && mClipboard.SetItem( source ) );
+}
+
+void Controller::Impl::SendSelectionToClipboard( bool deleteAfterSending )
+{
+ std::string selectedText;
+ RetreiveSelection( selectedText, deleteAfterSending );
+ CopyStringToClipboard( selectedText );
+ ChangeState( EventData::EDITING );
+}
+
+void Controller::Impl::PasteTextFromClipboard()
+{
+ // Not supported
+}
+
+void Controller::Impl::RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd )
+{
+ if( selectionStart == selectionEnd )
+ {
+ // Nothing to select if handles are in the same place.
+ return;
+ }
+
+ mEventData->mDecorator->ClearHighlights();
+
+ mEventData->mLeftSelectionPosition = selectionStart;
+ mEventData->mRightSelectionPosition = selectionEnd;
+
+ const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+ const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+ const GlyphInfo* const glyphsBuffer = mVisualModel->mGlyphs.Begin();
+ const Vector2* const positionsBuffer = mVisualModel->mGlyphPositions.Begin();
+
+ // TODO: Better algorithm to create the highlight box.
+ // TODO: Multi-line.