mitkDisplayActionEventBroadcast.cpp

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/*============================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.

Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.

============================================================================*/

#include "mitkDisplayActionEventBroadcast.h"

 // us
#include "usGetModuleContext.h"
#include "usModuleContext.h"

// mitk core module
#include <mitkCompositePixelValueToString.h>
#include <mitkDisplayActionEvents.h>
#include <mitkImage.h>
#include <mitkImagePixelReadAccessor.h>
#include <mitkInteractionConst.h>
#include <mitkInteractionPositionEvent.h>
#include <mitkLine.h>
#include <mitkNodePredicateDataType.h>
#include <mitkPixelTypeMultiplex.h>
#include <mitkRotationOperation.h>
#include <mitkStatusBar.h>

#include <rotate_cursor.xpm>

mitk::DisplayActionEventBroadcast::DisplayActionEventBroadcast()
  : m_AlwaysReact(false)
  , m_AutoRepeat(false)
  , m_IndexToSliceModifier(4)
  , m_InvertScrollDirection(false)
  , m_InvertZoomDirection(false)
  , m_ZoomFactor(2)
  , m_InvertMoveDirection(false)
  , m_InvertLevelWindowDirection(false)
  , m_LinkPlanes(true)
{
  m_StartCoordinateInMM.Fill(0);
  m_LastDisplayCoordinate.Fill(0);
  m_LastCoordinateInMM.Fill(0);
  m_CurrentDisplayCoordinate.Fill(0);

  // register the broadcast class (itself) as an interaction event observer via micro services
  us::ServiceProperties props;
  props["name"] = std::string("DisplayActionEventBroadcast");
  m_ServiceRegistration = us::GetModuleContext()->RegisterService<InteractionEventObserver>(this, props);
}

mitk::DisplayActionEventBroadcast::~DisplayActionEventBroadcast()
{
  m_ServiceRegistration.Unregister();
}

void mitk::DisplayActionEventBroadcast::Notify(InteractionEvent* interactionEvent, bool isHandled)
{
  // the event is passed to the state machine interface to be handled
  if (!isHandled || m_AlwaysReact)
  {
    HandleEvent(interactionEvent, nullptr);
  }
}

void mitk::DisplayActionEventBroadcast::ConnectActionsAndFunctions()
{
  CONNECT_CONDITION("check_position_event", CheckPositionEvent);
  CONNECT_CONDITION("check_can_rotate", CheckRotationPossible);
  CONNECT_CONDITION("check_can_swivel", CheckSwivelPossible);

  CONNECT_FUNCTION("init", Init);
  CONNECT_FUNCTION("move", Move);
  CONNECT_FUNCTION("zoom", Zoom);
  CONNECT_FUNCTION("scroll", Scroll);
  CONNECT_FUNCTION("ScrollOneUp", ScrollOneUp);
  CONNECT_FUNCTION("ScrollOneDown", ScrollOneDown);
  CONNECT_FUNCTION("levelWindow", AdjustLevelWindow);
  CONNECT_FUNCTION("setCrosshair", SetCrosshair);

  CONNECT_FUNCTION("updateStatusbar", UpdateStatusbar)

  CONNECT_FUNCTION("startRotation", StartRotation);
  CONNECT_FUNCTION("endRotation", EndRotation);
  CONNECT_FUNCTION("rotate", Rotate);

  CONNECT_FUNCTION("swivel", Swivel);

  CONNECT_FUNCTION("IncreaseTimeStep", IncreaseTimeStep);
  CONNECT_FUNCTION("DecreaseTimeStep", DecreaseTimeStep);
}

void mitk::DisplayActionEventBroadcast::ConfigurationChanged()
{
  PropertyList::Pointer properties = GetAttributes();

  // allwaysReact
  std::string strAlwaysReact = "";
  m_AlwaysReact = false;
  if (properties->GetStringProperty("alwaysReact", strAlwaysReact))
  {
    if (strAlwaysReact == "true")
    {
      m_AlwaysReact = true;
    }
  }

  // auto repeat
  std::string strAutoRepeat = "";
  m_AutoRepeat = false;
  if (properties->GetStringProperty("autoRepeat", strAutoRepeat))
  {
    if (strAutoRepeat == "true")
    {
      m_AutoRepeat = true;
    }
  }

  // pixel movement for scrolling one slice
  std::string strPixelPerSlice = "";
  m_IndexToSliceModifier = 4;
  if (properties->GetStringProperty("pixelPerSlice", strPixelPerSlice))
  {
    m_IndexToSliceModifier = atoi(strPixelPerSlice.c_str());
  }

  // scroll direction
  if (!properties->GetStringProperty("scrollDirection", m_ScrollDirection))
  {
    m_ScrollDirection = "updown";
  }

  m_InvertScrollDirection = GetBoolProperty(properties, "invertScrollDirection", false);

  // zoom direction
  if (!properties->GetStringProperty("zoomDirection", m_ZoomDirection))
  {
    m_ZoomDirection = "updown";
  }

  m_InvertZoomDirection = GetBoolProperty(properties, "invertZoomDirection", false);
  m_InvertMoveDirection = GetBoolProperty(properties, "invertMoveDirection", false);

  if (!properties->GetStringProperty("levelWindowDirection", m_LevelDirection))
  {
    m_LevelDirection = "leftright";
  }

  m_InvertLevelWindowDirection = GetBoolProperty(properties, "invertLevelWindowDirection", false);

  // coupled rotation
  std::string strCoupled = "";
  m_LinkPlanes = false;
  if (properties->GetStringProperty("coupled", strCoupled))
  {
    if (strCoupled == "true")
    {
      m_LinkPlanes = true;
    }
  }

  // zoom factor
  std::string strZoomFactor = "";
  properties->GetStringProperty("zoomFactor", strZoomFactor);
  m_ZoomFactor = .05;
  if (atoi(strZoomFactor.c_str()) > 0)
  {
    m_ZoomFactor = 1.0 + (atoi(strZoomFactor.c_str()) / 100.0);
  }
}

bool mitk::DisplayActionEventBroadcast::FilterEvents(InteractionEvent* interactionEvent, DataNode * /*dataNode*/)
{
  BaseRenderer* sendingRenderer = interactionEvent->GetSender();
  if (nullptr == sendingRenderer)
  {
    return false;
  }

  if (BaseRenderer::Standard3D == sendingRenderer->GetMapperID())
  {
    return false;
  }

  return true;
}

bool mitk::DisplayActionEventBroadcast::CheckPositionEvent(const InteractionEvent *interactionEvent)
{
  const auto* positionEvent = dynamic_cast<const InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return false;
  }

  return true;
}

bool mitk::DisplayActionEventBroadcast::CheckRotationPossible(const InteractionEvent *interactionEvent)
{
  // Decide between moving and rotation slices.
  /*
  Detailed logic:

  1. Find the SliceNavigationController that has sent the event: this one defines our rendering plane and will NOT be
  rotated. Needs not even be counted or checked.
  2. Inspect every other SliceNavigationController
  - calculate the line intersection of this SliceNavigationController's plane with our rendering plane
  - if there is NO intersection, ignore and continue
  - IF there is an intersection
  - check the mouse cursor's distance from that line.
  0. if the line is NOT near the cursor, remember the plane as "one of the other planes" (which can be rotated in
  "locked" mode)
  1. on first line near the cursor,  just remember this intersection line as THE other plane that we want to rotate
  2. on every consecutive line near the cursor, check if the line is geometrically identical to the line that we want to
  rotate
  - if yes, we just push this line to the "other" lines and rotate it along
  - if no, then we have a situation where the mouse is near two other lines (e.g. crossing point) and don't want to
  rotate
  */
  const auto* positionEvent = dynamic_cast<const InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return false;
  }

  BaseRenderer* renderer = positionEvent->GetSender();
  if (nullptr == renderer)
  {
    return false;
  }

  const PlaneGeometry* rendererWorldPlaneGeometry = renderer->GetCurrentWorldPlaneGeometry();
  if (nullptr == rendererWorldPlaneGeometry)
  {
    return false;
  }

  Point3D position = positionEvent->GetPositionInWorld();
  const auto spacing = rendererWorldPlaneGeometry->GetSpacing();
  const PlaneGeometry *geometryToBeRotated = nullptr; // this one is under the mouse cursor
  const PlaneGeometry *anyOtherGeometry = nullptr;    // this is also visible (for calculation of intersection ONLY)
  Line3D intersectionLineWithGeometryToBeRotated;

  bool hitMultipleLines(false);
  m_SNCsToBeRotated.clear();

  const ScalarType threshholdDistancePixels = 12.0;

  auto allRenderWindows = RenderingManager::GetInstance()->GetAllRegisteredRenderWindows();
  for (auto renderWindow : allRenderWindows)
  {
    SliceNavigationController* snc = BaseRenderer::GetInstance(renderWindow)->GetSliceNavigationController();

    // If the mouse cursor is in 3D Renderwindow, do not check for intersecting planes.
    if (BaseRenderer::Standard3D == BaseRenderer::GetInstance(renderWindow)->GetMapperID())
    {
      continue;
    }

    const PlaneGeometry* rendererPlaneGeometry = snc->GetCurrentPlaneGeometry();
    if (nullptr == rendererPlaneGeometry)
    {
      continue; // ignore, we don't see a plane
    }

    // check if there is an intersection between rendered / clicked geometry and the one being analyzed
    Line3D intersectionLine;
    if (!rendererWorldPlaneGeometry->IntersectionLine(rendererPlaneGeometry, intersectionLine))
    {
      continue; // we ignore this plane, it's parallel to our plane
    }

    // check distance from intersection line
    const double distanceFromIntersectionLine = intersectionLine.Distance(position) / spacing[snc->GetDefaultViewDirection()];

    // far away line, only remember for linked rotation if necessary
    if (distanceFromIntersectionLine > threshholdDistancePixels)
    {
      // we just take the last one, so overwrite each iteration (we just need some crossing point)
      // TODO what about multiple crossings? NOW we have undefined behavior / random crossing point is used
      anyOtherGeometry = rendererPlaneGeometry;
      if (m_LinkPlanes)
      {
        // if planes are linked, apply rotation to all planes
        m_SNCsToBeRotated.push_back(snc);
      }
    }
    else // close to cursor
    {
      if (nullptr == geometryToBeRotated) // first one close to the cursor
      {
        geometryToBeRotated = rendererPlaneGeometry;
        intersectionLineWithGeometryToBeRotated = intersectionLine;
        m_SNCsToBeRotated.push_back(snc);
      }
      else
      {
        // compare to the line defined by geometryToBeRotated: if identical, just rotate this otherRenderersRenderPlane
        // together with the primary one
        //                                                     if different, DON'T rotate
        if (intersectionLine.IsParallel(intersectionLineWithGeometryToBeRotated)
         && intersectionLine.Distance(intersectionLineWithGeometryToBeRotated.GetPoint1()) < eps)
        {
          m_SNCsToBeRotated.push_back(snc);
        }
        else
        {
          hitMultipleLines = true;
        }
      }
    }
  }

  bool moveSlices(true);

  if (geometryToBeRotated && anyOtherGeometry && rendererWorldPlaneGeometry && !hitMultipleLines)
  {
    // assure all three are valid, so calculation of center of rotation can be done
    moveSlices = false;
  }
  // question in state machine is: "rotate?"
  if (moveSlices) // i.e. NOT rotate
  {
    return false;
  }
  else
  {
    // we have enough information for rotation
    // remember where the last cursor position ON THE LINE has been observed
    m_LastCursorPosition = intersectionLineWithGeometryToBeRotated.Project(position);

    // find center of rotation by intersection with any of the OTHER lines
    if (anyOtherGeometry->IntersectionPoint(intersectionLineWithGeometryToBeRotated, m_CenterOfRotation))
    {
      return true;
    }
    else
    {
      return false;
    }
  }
  return false;
}

bool mitk::DisplayActionEventBroadcast::CheckSwivelPossible(const InteractionEvent *interactionEvent)
{
  // Decide between moving and rotation: if we're close to the crossing
  // point of the planes, moving mode is entered, otherwise
  // rotation/swivel mode
  const auto* positionEvent = dynamic_cast<const InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return false;
  }

  BaseRenderer* renderer = positionEvent->GetSender();
  if (nullptr == renderer)
  {
    return false;
  }

  const Point3D& position = positionEvent->GetPositionInWorld();

  m_SNCsToBeRotated.clear();

  const PlaneGeometry* clickedGeometry(nullptr);
  const PlaneGeometry* otherGeometry1(nullptr);
  const PlaneGeometry* otherGeometry2(nullptr);

  const ScalarType threshholdDistancePixels = 6.0;

  auto allRenderWindows = RenderingManager::GetInstance()->GetAllRegisteredRenderWindows();
  for (auto renderWindow : allRenderWindows)
  {
    SliceNavigationController* snc = BaseRenderer::GetInstance(renderWindow)->GetSliceNavigationController();

    // If the mouse cursor is in 3D Renderwindow, do not check for intersecting planes.
    if (BaseRenderer::Standard3D == BaseRenderer::GetInstance(renderWindow)->GetMapperID())
    {
      continue;
    }

    const PlaneGeometry* rendererPlaneGeometry = snc->GetCurrentPlaneGeometry();
    if (nullptr == rendererPlaneGeometry)
    {
      continue; // ignore, we don't see a plane
    }

    if (snc == renderer->GetSliceNavigationController())
    {
      clickedGeometry = rendererPlaneGeometry;
      m_SNCsToBeRotated.push_back(snc);
    }
    else
    {
      if (nullptr == otherGeometry1)
      {
        otherGeometry1 = rendererPlaneGeometry;
      }
      else
      {
        otherGeometry2 = rendererPlaneGeometry;
      }
      if (m_LinkPlanes)
      {
        // if planes are linked, apply rotation to all planes
        m_SNCsToBeRotated.push_back(snc);
      }
    }
  }

  Line3D line;
  Point3D point;
  if ((nullptr != clickedGeometry) && (nullptr != otherGeometry1) && (nullptr != otherGeometry2)
   && clickedGeometry->IntersectionLine(otherGeometry1, line) && otherGeometry2->IntersectionPoint(line, point))
  {
    m_CenterOfRotation = point;
    if (m_CenterOfRotation.EuclideanDistanceTo(position) < threshholdDistancePixels)
    {
      return false;
    }
    else
    {
      m_ReferenceCursor = positionEvent->GetPointerPositionOnScreen();

      // Get main axes of rotation plane and store it for rotation step
      m_RotationPlaneNormal = clickedGeometry->GetNormal();

      ScalarType xVector[] = { 1.0, 0.0, 0.0 };
      ScalarType yVector[] = { 0.0, 1.0, 0.0 };
      clickedGeometry->BaseGeometry::IndexToWorld(Vector3D(xVector), m_RotationPlaneXVector);
      clickedGeometry->BaseGeometry::IndexToWorld(Vector3D(yVector), m_RotationPlaneYVector);

      m_RotationPlaneNormal.Normalize();
      m_RotationPlaneXVector.Normalize();
      m_RotationPlaneYVector.Normalize();

      m_PreviousRotationAxis.Fill(0.0);
      m_PreviousRotationAxis[2] = 1.0;
      m_PreviousRotationAngle = 0.0;

      return true;
    }
  }
  else
  {
    return false;
  }
  return false;
}

void mitk::DisplayActionEventBroadcast::Init(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  m_LastDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();
  m_CurrentDisplayCoordinate = m_LastDisplayCoordinate;
  positionEvent->GetSender()->DisplayToPlane(m_LastDisplayCoordinate, m_StartCoordinateInMM);
  m_LastCoordinateInMM = m_StartCoordinateInMM;
}

void mitk::DisplayActionEventBroadcast::Move(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  BaseRenderer* sender = interactionEvent->GetSender();
  Vector2D moveVector = m_LastDisplayCoordinate - positionEvent->GetPointerPositionOnScreen();

  if (m_InvertMoveDirection)
  {
    moveVector *= -1.0;
  }

  moveVector *= sender->GetScaleFactorMMPerDisplayUnit(); // #TODO: put here?

  // store new display coordinate
  m_LastDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();

  // propagate move event with computed geometry values
  InvokeEvent(DisplayMoveEvent(interactionEvent, moveVector));
}

void mitk::DisplayActionEventBroadcast::SetCrosshair(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  Point3D position = positionEvent->GetPositionInWorld();

  // propagate set crosshair event with computed geometry values
  InvokeEvent(DisplaySetCrosshairEvent(interactionEvent, position));
}

void mitk::DisplayActionEventBroadcast::Zoom(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  float factor = 1.0;
  float distance = 0;

  if (m_ZoomDirection == "updown")
  {
    distance = m_CurrentDisplayCoordinate[1] - m_LastDisplayCoordinate[1];
  }
  else
  {
    distance = m_CurrentDisplayCoordinate[0] - m_LastDisplayCoordinate[0];
  }

  if (m_InvertZoomDirection)
  {
    distance *= -1.0;
  }

  // set zooming speed
  if (distance < 0.0)
  {
    factor = 1.0 / m_ZoomFactor;
  }
  else if (distance > 0.0)
  {
    factor = 1.0 * m_ZoomFactor;
  }

  // store new display coordinates
  m_LastDisplayCoordinate = m_CurrentDisplayCoordinate;
  m_CurrentDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();

  // propagate zoom event with computed geometry values
  InvokeEvent(DisplayZoomEvent(interactionEvent, factor, m_StartCoordinateInMM));
}

void mitk::DisplayActionEventBroadcast::Scroll(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  int sliceDelta = 0;

  // scroll direction
  if (m_ScrollDirection == "updown")
  {
    sliceDelta = static_cast<int>(m_CurrentDisplayCoordinate[1] - m_LastDisplayCoordinate[1]);
  }
  else
  {
    sliceDelta = static_cast<int>(m_CurrentDisplayCoordinate[0] - m_LastDisplayCoordinate[0]);
  }

  if (m_InvertScrollDirection)
  {
    sliceDelta *= -1;
  }

  // set how many pixels the mouse has to be moved to scroll one slice
  // if the mouse has been moved less than 'm_IndexToSliceModifier', pixels slice ONE slice only
  if (sliceDelta > 0 && sliceDelta < m_IndexToSliceModifier)
  {
    sliceDelta = m_IndexToSliceModifier;
  }
  else if (sliceDelta < 0 && sliceDelta > -m_IndexToSliceModifier)
  {
    sliceDelta = -m_IndexToSliceModifier;
  }
  sliceDelta /= m_IndexToSliceModifier;

  // store new display coordinates
  m_LastDisplayCoordinate = m_CurrentDisplayCoordinate;
  m_CurrentDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();

  // propagate scroll event with computed geometry values
  InvokeEvent(DisplayScrollEvent(interactionEvent, sliceDelta));
}

void mitk::DisplayActionEventBroadcast::ScrollOneUp(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  int sliceDelta = 1;
  if (m_InvertScrollDirection)
  {
    sliceDelta = -1;
  }

  // propagate scroll event with a single slice delta (increase)
  InvokeEvent(DisplayScrollEvent(interactionEvent, sliceDelta));
}

void mitk::DisplayActionEventBroadcast::ScrollOneDown(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  int sliceDelta = -1;
  if (m_InvertScrollDirection)
  {
    sliceDelta = 1;
  }

  // propagate scroll event with a single slice delta (decrease)
  InvokeEvent(DisplayScrollEvent(interactionEvent, sliceDelta));
}

void mitk::DisplayActionEventBroadcast::AdjustLevelWindow(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  ScalarType level;
  ScalarType window;

  if (m_LevelDirection == "leftright")
  {
    level = m_CurrentDisplayCoordinate[0] - m_LastDisplayCoordinate[0];
    window = m_CurrentDisplayCoordinate[1] - m_LastDisplayCoordinate[1];
  }
  else
  {
    level = m_CurrentDisplayCoordinate[1] - m_LastDisplayCoordinate[1];
    window = m_CurrentDisplayCoordinate[0] - m_LastDisplayCoordinate[0];
  }

  if (m_InvertLevelWindowDirection)
  {
    level *= -1;
    window *= -1;
  }

  level *= static_cast<ScalarType>(2);
  window *= static_cast<ScalarType>(2);

  // store new display coordinates
  m_LastDisplayCoordinate = m_CurrentDisplayCoordinate;
  m_CurrentDisplayCoordinate = positionEvent->GetPointerPositionOnScreen();

  // propagate set level window event with the level and window delta
  InvokeEvent(DisplaySetLevelWindowEvent(interactionEvent, level, window));
}

void mitk::DisplayActionEventBroadcast::StartRotation(StateMachineAction* /*stateMachineAction*/, InteractionEvent* /*interactionEvent*/)
{
  SetMouseCursor(rotate_cursor_xpm, 0, 0);
}

void mitk::DisplayActionEventBroadcast::EndRotation(StateMachineAction* /*stateMachineAction*/, InteractionEvent* /*interactionEvent*/)
{
  ResetMouseCursor();
}

void mitk::DisplayActionEventBroadcast::Rotate(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  Point3D position = positionEvent->GetPositionInWorld();

  Vector3D toProjected = m_LastCursorPosition - m_CenterOfRotation;
  Vector3D toCursor = position - m_CenterOfRotation;

  // cross product: | A x B | = |A| * |B| * sin(angle)
  Vector3D axisOfRotation;
  vnl_vector_fixed<ScalarType, 3> vnlDirection = vnl_cross_3d(toCursor.GetVnlVector(), toProjected.GetVnlVector());
  axisOfRotation.SetVnlVector(vnlDirection);

  // scalar product: A * B = |A| * |B| * cos(angle)
  // tan = sin / cos
  ScalarType angle = -atan2((double)(axisOfRotation.GetNorm()), (double)(toCursor * toProjected));
  angle *= 180.0 / vnl_math::pi;
  m_LastCursorPosition = position;

  // create RotationOperation and apply to all SNCs that should be rotated
  RotationOperation rotationOperation(OpROTATE, m_CenterOfRotation, axisOfRotation, angle);

  // iterate the OTHER slice navigation controllers
  for (auto iter = m_SNCsToBeRotated.begin(); iter != m_SNCsToBeRotated.end(); ++iter)
  {
    TimeGeometry* timeGeometry = (*iter)->GetCreatedWorldGeometry();
    if (nullptr == timeGeometry)
    {
      continue;
    }

    timeGeometry->ExecuteOperation(&rotationOperation);

    (*iter)->SendCreatedWorldGeometryUpdate();
  }

  RenderingManager::GetInstance()->RequestUpdateAll();
}

void mitk::DisplayActionEventBroadcast::Swivel(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  // Determine relative mouse movement projected onto world space
  Point2D position = positionEvent->GetPointerPositionOnScreen();

  Vector2D relativeCursor = position - m_ReferenceCursor;
  Vector3D relativeCursorAxis = m_RotationPlaneXVector * relativeCursor[0] + m_RotationPlaneYVector * relativeCursor[1];

  // Determine rotation axis (perpendicular to rotation plane and cursor movement)
  Vector3D rotationAxis = itk::CrossProduct(m_RotationPlaneNormal, relativeCursorAxis);

  ScalarType rotationAngle = relativeCursor.GetNorm() / 2.0;

  // Restore the initial plane pose by undoing the previous rotation operation
  RotationOperation op(OpROTATE, m_CenterOfRotation, m_PreviousRotationAxis, -m_PreviousRotationAngle);

  SNCVector::iterator iter;
  for (iter = m_SNCsToBeRotated.begin(); iter != m_SNCsToBeRotated.end(); ++iter)
  {
    if (!(*iter)->GetSliceRotationLocked())
    {
      TimeGeometry* timeGeometry = (*iter)->GetCreatedWorldGeometry();
      if (nullptr == timeGeometry)
      {
        continue;
      }

      timeGeometry->ExecuteOperation(&op);
      (*iter)->SendCreatedWorldGeometryUpdate();
    }
  }

  // Apply new rotation operation to all relevant SNCs
  RotationOperation op2(OpROTATE, m_CenterOfRotation, rotationAxis, rotationAngle);

  for (iter = m_SNCsToBeRotated.begin(); iter != m_SNCsToBeRotated.end(); ++iter)
  {
    if (!(*iter)->GetSliceRotationLocked())
    {
      // Retrieve the TimeGeometry of this SliceNavigationController
      TimeGeometry *timeGeometry = (*iter)->GetCreatedWorldGeometry();
      if (nullptr == timeGeometry)
      {
        continue;
      }

      // Execute the new rotation
      timeGeometry->ExecuteOperation(&op2);

      // Notify listeners
      (*iter)->SendCreatedWorldGeometryUpdate();
    }
  }

  m_PreviousRotationAxis = rotationAxis;
  m_PreviousRotationAngle = rotationAngle;

  RenderingManager::GetInstance()->RequestUpdateAll();
  return;
}

void mitk::DisplayActionEventBroadcast::IncreaseTimeStep(StateMachineAction*, InteractionEvent*)
{
  auto sliceNaviController = RenderingManager::GetInstance()->GetTimeNavigationController();
  auto stepper = sliceNaviController->GetTime();
  stepper->SetAutoRepeat(true);
  stepper->Next();
}

void mitk::DisplayActionEventBroadcast::DecreaseTimeStep(StateMachineAction*, InteractionEvent*)
{
  auto sliceNaviController = RenderingManager::GetInstance()->GetTimeNavigationController();
  auto stepper = sliceNaviController->GetTime();
  stepper->SetAutoRepeat(true);
  stepper->Previous();
}

void mitk::DisplayActionEventBroadcast::UpdateStatusbar(StateMachineAction* /*stateMachineAction*/, InteractionEvent* interactionEvent)
{
  const auto* positionEvent = dynamic_cast<InteractionPositionEvent*>(interactionEvent);
  if (nullptr == positionEvent)
  {
    return;
  }

  BaseRenderer::Pointer renderer = positionEvent->GetSender();

  TNodePredicateDataType<Image>::Pointer isImageData = TNodePredicateDataType<Image>::New();
  DataStorage::SetOfObjects::ConstPointer nodes = renderer->GetDataStorage()->GetSubset(isImageData).GetPointer();
  if (nodes.IsNull())
  {
    return;
  }

  Point3D worldposition;
  renderer->DisplayToWorld(positionEvent->GetPointerPositionOnScreen(), worldposition);
  auto globalCurrentTimePoint = renderer->GetTime();

  Image::Pointer image3D;
  DataNode::Pointer node;
  DataNode::Pointer topSourceNode;

  int component = 0;

  node = FindTopmostVisibleNode(nodes, worldposition, globalCurrentTimePoint, renderer);
  if (node.IsNull())
  {
    return;
  }

  bool isBinary(false);
  node->GetBoolProperty("binary", isBinary);
  if (isBinary)
  {
    DataStorage::SetOfObjects::ConstPointer sourcenodes = renderer->GetDataStorage()->GetSources(node, nullptr, true);
    if (!sourcenodes->empty())
    {
      topSourceNode = FindTopmostVisibleNode(nodes, worldposition, globalCurrentTimePoint, renderer);
    }
    if (topSourceNode.IsNotNull())
    {
      image3D = dynamic_cast<Image*>(topSourceNode->GetData());
      topSourceNode->GetIntProperty("Image.Displayed Component", component);
    }
    else
    {
      image3D = dynamic_cast<Image*>(node->GetData());
      node->GetIntProperty("Image.Displayed Component", component);
    }
  }
  else
  {
    image3D = dynamic_cast<Image *>(node->GetData());
    node->GetIntProperty("Image.Displayed Component", component);
  }

  // get the position and pixel value from the image and build up status bar text
  auto statusBar = StatusBar::GetInstance();
  if (image3D.IsNotNull() && statusBar != nullptr)
  {
    itk::Index<3> p;
    image3D->GetGeometry()->WorldToIndex(worldposition, p);

    auto pixelType = image3D->GetChannelDescriptor().GetPixelType().GetPixelType();
    if (pixelType == itk::ImageIOBase::RGB || pixelType == itk::ImageIOBase::RGBA)
    {
      std::string pixelValue = "Pixel RGB(A) value: ";
      pixelValue.append(ConvertCompositePixelValueToString(image3D, p));
      statusBar->DisplayImageInfo(worldposition, p, renderer->GetTime(), pixelValue.c_str());
    }
    else if (pixelType == itk::ImageIOBase::DIFFUSIONTENSOR3D || pixelType == itk::ImageIOBase::SYMMETRICSECONDRANKTENSOR)
    {
      std::string pixelValue = "See ODF Details view. ";
      statusBar->DisplayImageInfo(worldposition, p, renderer->GetTime(), pixelValue.c_str());
    }
    else
    {
      ScalarType pixelValue;
      mitkPixelTypeMultiplex5(
        FastSinglePixelAccess,
        image3D->GetChannelDescriptor().GetPixelType(),
        image3D,
        image3D->GetVolumeData(renderer->GetTimeStep()),
        p,
        pixelValue,
        component);
      statusBar->DisplayImageInfo(worldposition, p, renderer->GetTime(), pixelValue);
    }
  }
  else
  {
    statusBar->DisplayImageInfoInvalid();
  }
}

bool mitk::DisplayActionEventBroadcast::GetBoolProperty(PropertyList::Pointer propertyList, const char* propertyName, bool defaultValue)
{
  std::string valueAsString;
  if (!propertyList->GetStringProperty(propertyName, valueAsString))
  {
    return defaultValue;
  }
  else
  {
    if (valueAsString == "true")
    {
      return true;
    }
    else
    {
      return false;
    }
  }
}