Method UnloadTasks

Modules/SegmentationUI/src/QmitkSegmentationTaskListWidget.cpp:788–824

Unload all task data nodes but spare the passed image data node. */

/* Unload all task data nodes but spare the passed image data node.
 */
void QmitkSegmentationTaskListWidget::UnloadTasks(const mitk::DataNode* skip)
{
  this->UnsubscribeFromActiveSegmentation();

  auto prefs = GetSegmentationPreferences();
  if (prefs != nullptr)
  {
    prefs->RemoveOverride("default label naming");
    prefs->RemoveOverride("external label suggestions");
    prefs->RemoveOverride("replace standard suggestions");
    prefs->RemoveOverride("suggest once");
  }

  m_ImageNode = nullptr;
  m_SegmentationNode = nullptr;

  if (m_TaskListNode.IsNotNull())
  {
    auto notSkip = mitk::NodePredicateFunction::New([skip](const mitk::DataNode* node) {
      return skip != node;
    });

    auto taskNodes = m_DataStorage->GetDerivations(m_TaskListNode, notSkip, false);

    m_DataStorage->Remove(taskNodes);

    // Removal is done in a random order instead of traveling upwards from
    // child nodes to parent nodes. This may result in temporary orphan nodes
    // hierarchically existing outside of the segmentation task list parent
    // node. To prevent the detection of unrelated data, which would put this
    // widget into a warning mode, do a final data storage check after
    // everything was removed.
    this->CheckDataStorage();
  }

  this->SetActiveTaskIndex(std::nullopt);
}

void QmitkSegmentationTaskListWidget::LoadNextUnfinishedTask()
{