Method Update

Modules/Core/src/DataManagement/mitkLevelWindowManager.cpp:258–354

}

void mitk::LevelWindowManager::Update(const itk::EventObject &)
{
  if (m_LevelWindowMutex) // no mutex, should still help
  {
    return;
  }

  m_DataNodesForLevelWindow.clear();
  if (m_AutoTopMost)
  {
    this->SetAutoTopMostImage(true);
    return;
  }

  if (m_SelectedImagesMode)
  {
    this->SetSelectedImages(true);
    return;
  }

  int maxVisibleLayer = itk::NumericTraits<int>::min();
  DataNode::Pointer topLevelNode = nullptr;
  std::vector<DataNode::Pointer> nodesForLevelWindow;

  DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes();
  for (DataStorage::SetOfObjects::ConstIterator it = all->Begin(); it != all->End(); ++it)
  {
    DataNode::Pointer node = it->Value();
    if (node.IsNull())
    {
      continue;
    }

    if (false == node->IsVisible(nullptr))
    {
      continue;
    }

    bool validRenderingMode = HasLevelWindowRenderingMode(node);
    if (false == validRenderingMode)
    {
      continue;
    }

    bool prop = false;
    node->GetBoolProperty("imageForLevelWindow", prop);
    if (prop)
    {
      nodesForLevelWindow.push_back(node);
      continue;
    }

    int layer = -1;
    node->GetIntProperty("layer", layer);
    if (layer <= maxVisibleLayer)
    {
      continue;
    }