void ProjectModel::copymodel(QModelIndex idx){

  const mo::model model(modelList.at(idx.row()));

  std::ostream *stream;
  stream << &model;

  QByteArray itemData;
  QDataStream datastream(&itemData, QIODevice::WriteOnly);

  QMimeData *mimeData = new QMimeData;
  mimeData->setData("test", itemData);

  QApplication::clipboard()->setMimeData(mimeData);}