Method OnCreateNewSyncGroupRequested

Modules/QtWidgets/src/QmitkMxNMultiWidget.cpp:1694–1710

}

void QmitkMxNMultiWidget::OnCreateNewSyncGroupRequested(QmitkSynchronizedNodeSelectionWidget* synchronizedWidget)
{
  // Guard against the slot firing before the editor has a data storage attached
  // (e.g. during teardown, or if SetDataStorage(nullptr) was called after init).
  // AddSynchronizationGroup would otherwise throw, and Qt slots must not let
  // exceptions escape into the event dispatcher.
  if (nullptr == this->GetDataStorage())
  {
    MITK_WARN << "Ignoring 'create new synchronization group' request: no data storage set on the multi widget.";
    return;
  }

  // 'SetSynchronizationGroup' auto-creates the group via 'AddSynchronizationGroup'
  // on first reference, so a separate Add call here would be redundant.
  const auto next = this->NextFreeSyncGroupIndex();
  this->SetSynchronizationGroup(synchronizedWidget, next);
}