Method LoadTask

Modules/SegmentationUI/src/QmitkSegmentationTaskListWidget.cpp:850–1131

Load/activate the currently displayed task. The task must specify an image * or a scene. The segmentation is either created from scratch with an optional * name for the first label, possibly based on a label set preset specified by * the task, or loaded as specified by the task. If a result file does * exist, it is chosen as segmentation instead. */

 * exist, it is chosen as segmentation instead.
 */
void QmitkSegmentationTaskListWidget::LoadTask(mitk::DataNode::Pointer imageNode)
{
  const auto current = m_CurrentTaskIndex.value();

  mitk::Image::Pointer image;
  mitk::MultiLabelSegmentation::Pointer segmentation;
  mitk::DataStorage::Pointer scene;

  // If the task has a scene, unload everything from before and load the scene.
  // If the task has an image instead, unload everything but the previous image
  // if it is the same image and can be reused. Otherwise load the new image.

  if (m_TaskList->HasScene(current))
  {
    this->UnloadTasks();

    try
    {
      const auto scenePath = m_TaskList->GetAbsolutePath(m_TaskList->GetScene(current).Path);
      auto sceneIO = mitk::SceneIO::New();

      switch (mitk::ClassifyTaskListSceneFile(scenePath))
      {
        case mitk::SceneFileForm::Zip:
        case mitk::SceneFileForm::JsonStandalone:
          scene = sceneIO->LoadScene(scenePath.string());
          break;

        case mitk::SceneFileForm::UnpackedIndex:
          scene = sceneIO->LoadSceneUnzipped(scenePath.string());
          break;
      }
    }
    catch (const mitk::Exception& e)
    {
      QMessageBox::critical(this, "Error while loading scene", e.GetDescription());
      MITK_ERROR << e.GetDescription();
      return;
    }
  }
  else
  {
    this->UnloadTasks(imageNode);

    if (imageNode.IsNull())
    {
      try
      {
        const auto imagePath = m_TaskList->GetAbsolutePath(m_TaskList->GetImage(current));
        image = mitk::IOUtil::Load<mitk::Image>(imagePath.string());
      }
      catch (const mitk::Exception& e)
      {
        QMessageBox::critical(this, "Error while loading image", e.GetDescription());
        MITK_ERROR << e.GetDescription();
        return;
      }
    }