Method SetDataStorage

Modules/QtWidgets/src/QmitkAbstractNodeSelectionWidget.cpp:64–109

}

void QmitkAbstractNodeSelectionWidget::SetDataStorage(mitk::DataStorage* dataStorage)
{
  if (m_DataStorage == dataStorage)
  {
    return;
  }

  auto oldStorage = m_DataStorage.Lock();
  if (oldStorage.IsNotNull())
  {
    // remove Listener for the data storage itself
    oldStorage->RemoveObserver(m_DataStorageDeletedTag);

    // remove "add node listener" from old data storage
    oldStorage->AddNodeEvent.RemoveListener(
      mitk::MessageDelegate1<QmitkAbstractNodeSelectionWidget, const mitk::DataNode*>(this, &QmitkAbstractNodeSelectionWidget::NodeAddedToStorage));

    // remove "remove node listener" from old data storage
    oldStorage->RemoveNodeEvent.RemoveListener(
      mitk::MessageDelegate1<QmitkAbstractNodeSelectionWidget, const mitk::DataNode*>(this, &QmitkAbstractNodeSelectionWidget::NodeRemovedFromStorage));
  }

  m_DataStorage = dataStorage;

  auto newStorage = m_DataStorage.Lock();

  if (newStorage.IsNotNull())
  {
    // add Listener for the data storage itself
    auto command = itk::SimpleMemberCommand<QmitkAbstractNodeSelectionWidget>::New();
    command->SetCallbackFunction(this, &QmitkAbstractNodeSelectionWidget::SetDataStorageDeleted);
    m_DataStorageDeletedTag = newStorage->AddObserver(itk::DeleteEvent(), command);

    // add "add node listener" for new data storage
    newStorage->AddNodeEvent.AddListener(
      mitk::MessageDelegate1<QmitkAbstractNodeSelectionWidget, const mitk::DataNode*>(this, &QmitkAbstractNodeSelectionWidget::NodeAddedToStorage));

    // add remove node listener for new data storage
    newStorage->RemoveNodeEvent.AddListener(
      mitk::MessageDelegate1<QmitkAbstractNodeSelectionWidget, const mitk::DataNode*>(this, &QmitkAbstractNodeSelectionWidget::NodeRemovedFromStorage));
  }

  this->OnDataStorageChanged();

  this->HandleChangeOfInternalSelection({});
}

void QmitkAbstractNodeSelectionWidget::SetNodePredicate(const mitk::NodePredicateBase* nodePredicate)
{