void DoubleStringsListSelectionWidget::selectAllStrings() {
  if (outputList->getMaxListSize() == 0) {
    for (int i = 0 ; i < inputList->count() ; ++i) {
      outputList->addItem(new QListWidgetItem(*(inputList->item(i))));
    }

    clearUnselectedStringsList();
  }
}
void GraphPropertiesSelectionWidget::clearLists() {
  clearSelectedStringsList();
  clearUnselectedStringsList();
}