Esempio n. 1
0
bool mitk::DisplayInteractor::AdjustLevelWindow(StateMachineAction*, InteractionEvent* interactionEvent)
{
  BaseRenderer::Pointer sender = interactionEvent->GetSender();
  InteractionPositionEvent* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (positionEvent == NULL)
  {
    MITK_WARN<< "DisplayVectorInteractor::Scroll cannot process the event: " << interactionEvent->GetNameOfClass();
    return false;
  }
  m_LastDisplayCoordinate = m_CurrentDisplayCoordinate;
  m_CurrentDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();
  // search for active image
  mitk::DataStorage::Pointer storage = sender->GetDataStorage();
  mitk::DataNode::Pointer node = NULL;
  mitk::DataStorage::SetOfObjects::ConstPointer allImageNodes = storage->GetSubset(mitk::NodePredicateDataType::New("Image"));
  for (unsigned int i = 0; i < allImageNodes->size(); i++)
  {
    bool isActiveImage = false;
    bool propFound = allImageNodes->at(i)->GetBoolProperty("imageForLevelWindow", isActiveImage);

    if (propFound && isActiveImage)
    {
      node = allImageNodes->at(i);
      continue;
    }
  }
  if (node.IsNull())
  {
    node = storage->GetNode(mitk::NodePredicateDataType::New("Image"));
  }
  if (node.IsNull())
  {
    return false;
  }

  mitk::LevelWindow lv = mitk::LevelWindow();
  node->GetLevelWindow(lv);
  ScalarType level = lv.GetLevel();
  ScalarType window = lv.GetWindow();
  // calculate adjustments from mouse movements
  level += (m_CurrentDisplayCoordinate[0] - m_LastDisplayCoordinate[0]) * static_cast<ScalarType>(2);
  window += (m_CurrentDisplayCoordinate[1] - m_LastDisplayCoordinate[1]) * static_cast<ScalarType>(2);

  lv.SetLevelWindow(level, window);
  dynamic_cast<mitk::LevelWindowProperty*>(node->GetProperty("levelwindow"))->SetLevelWindow(lv);

  sender->GetRenderingManager()->RequestUpdateAll();
  return true;
}
mitk::StdFunctionCommand::ActionFunction mitk::DisplayActionEventFunctions::SetLevelWindowAction()
{
  auto actionFunction = [](const itk::EventObject& displayInteractorEvent)
  {
    if (DisplaySetLevelWindowEvent().CheckEvent(&displayInteractorEvent))
    {
      const DisplaySetLevelWindowEvent* displayActionEvent = dynamic_cast<const DisplaySetLevelWindowEvent*>(&displayInteractorEvent);
      const BaseRenderer::Pointer sendingRenderer = displayActionEvent->GetSender();
      if (nullptr == sendingRenderer)
      {
        return;
      }

      // get the the topmost visible image of the sending renderer
      DataStorage::Pointer storage = sendingRenderer->GetDataStorage();
      DataStorage::SetOfObjects::ConstPointer allImageNodes = storage->GetSubset(NodePredicateDataType::New("Image"));
      Point3D worldposition;
      const auto* positionEvent = dynamic_cast<const InteractionPositionEvent*>(displayActionEvent->GetInteractionEvent());
      sendingRenderer->DisplayToWorld(positionEvent->GetPointerPositionOnScreen(), worldposition);
      auto globalCurrentTimePoint = sendingRenderer->GetTime();
      DataNode::Pointer node = FindTopmostVisibleNode(allImageNodes, worldposition, globalCurrentTimePoint, sendingRenderer);
      if (node.IsNull())
      {
        return;
      }

      LevelWindow levelWindow = LevelWindow();
      node->GetLevelWindow(levelWindow);
      ScalarType level = levelWindow.GetLevel();
      ScalarType window = levelWindow.GetWindow();

      level += displayActionEvent->GetLevel();
      window += displayActionEvent->GetWindow();

      levelWindow.SetLevelWindow(level, window);
      auto* levelWindowProperty = dynamic_cast<LevelWindowProperty*>(node->GetProperty("levelwindow"));
      if (nullptr != levelWindowProperty)
      {
        levelWindowProperty->SetLevelWindow(levelWindow);
        sendingRenderer->GetRenderingManager()->RequestUpdateAll();
      }
    }
  };

  return actionFunction;
}
bool mitk::DisplayInteractor::AdjustLevelWindow(StateMachineAction*, InteractionEvent* interactionEvent)
{
  BaseRenderer::Pointer sender = interactionEvent->GetSender();
  InteractionPositionEvent* positionEvent = static_cast<InteractionPositionEvent*>(interactionEvent);

  m_LastDisplayCoordinate = m_CurrentDisplayCoordinate;
  m_CurrentDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();
  // search for active image
  mitk::DataStorage::Pointer storage = sender->GetDataStorage();
  mitk::DataNode::Pointer node = NULL;
  mitk::DataStorage::SetOfObjects::ConstPointer allImageNodes = storage->GetSubset(mitk::NodePredicateDataType::New("Image"));
  for (unsigned int i = 0; i < allImageNodes->size(); i++)
  {
    bool isActiveImage = false;
    bool propFound = allImageNodes->at(i)->GetBoolProperty("imageForLevelWindow", isActiveImage);

    if (propFound && isActiveImage)
    {
      node = allImageNodes->at(i);
      continue;
    }
  }
  if (node.IsNull())
  {
    node = storage->GetNode(mitk::NodePredicateDataType::New("Image"));
  }
  if (node.IsNull())
  {
    return false;
  }

  mitk::LevelWindow lv = mitk::LevelWindow();
  node->GetLevelWindow(lv);
  ScalarType level = lv.GetLevel();
  ScalarType window = lv.GetWindow();

  int levelIndex = 0;
  int windowIndex = 1;

  if ( m_LevelDirection != "leftright" )
  {
    levelIndex = 1;
    windowIndex = 0;
  }

  int directionModifier = 1;
  if ( m_InvertLevelWindowDirection )
  {
    directionModifier = -1;
  }

  // calculate adjustments from mouse movements
  level += (m_CurrentDisplayCoordinate[levelIndex] - m_LastDisplayCoordinate[levelIndex]) * static_cast<ScalarType>(2) * directionModifier;
  window += (m_CurrentDisplayCoordinate[windowIndex] - m_LastDisplayCoordinate[windowIndex]) * static_cast<ScalarType>(2) * directionModifier;

  lv.SetLevelWindow(level, window);
  dynamic_cast<mitk::LevelWindowProperty*>(node->GetProperty("levelwindow"))->SetLevelWindow(lv);

  sender->GetRenderingManager()->RequestUpdateAll();
  return true;
}