if (!QFileInfo::exists(params->refLib)) {
params->loadReferencesFromXml();
int ret = QMessageBox::question(this,tr("Building references library"),tr("The reference block library does not exists.\n References have been read directly from the xml descriptions of blocks.\n It can be saved into a library in order to start application faster. "), QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
if (!QFileInfo::exists(params->refLib)) {
params->loadReferencesFromXml();
int ret = QMessageBox::question(this,tr("Building references library"),tr("The reference block library does not exists.\n References have been read directly from the xml descriptions of blocks.\n It can be saved into a library in order to start application faster. "), QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);