mitkRegistrationManipulationInteractor.h

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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.
 
============================================================================*/
 
#ifndef mitkRegistrationManipulationInteractor_h
#define mitkRegistrationManipulationInteractor_h
 
#include <mitkDataInteractor.h>
#include <mitkEventConfig.h>
#include <mitkInteractionPositionEvent.h>
#include <mitkPoint.h>
#include <mitkVector.h>
 
#include <usServiceReference.h>
 
#include <MitkMatchPointRegistrationExports.h>
 
#include <map>
 
namespace mitk
{
  itkEventMacroDeclaration(RegistrationTranslationEvent, itk::AnyEvent);
 
  itkEventMacroDeclaration(RegistrationRotationEvent, itk::AnyEvent);
 
  itkEventMacroDeclaration(RegistrationSelectPositionEvent, itk::AnyEvent);
 
  class MITKMATCHPOINTREGISTRATION_EXPORT RegistrationManipulationInteractor : public DataInteractor
  {
  public:
    mitkClassMacro(RegistrationManipulationInteractor, DataInteractor);
    itkFactorylessNewMacro(Self);
    itkCloneMacro(Self);
 
    void SetCenterOfRotation(const Point3D& center);
 
    struct RotationDelta
    {
      Vector3D Axis;
      double AngleDeg;
    };
 
    const Vector3D& GetTranslationDelta() const;
 
    const RotationDelta& GetRotationDelta() const;
 
    const Point3D& GetSelectPosition() const;
 
    void DisableOriginalInteraction();
 
    void EnableOriginalInteraction();
 
    void PushManipulationCursor();
 
    void PopManipulationCursor();
 
  private:
    RegistrationManipulationInteractor();
    ~RegistrationManipulationInteractor() override;
 
    void ConnectActionsAndFunctions() override;
 
    // State machine actions: hover cursor foreshadowing
    void HintTranslate(StateMachineAction*, InteractionEvent*);
    void HintRotate(StateMachineAction*, InteractionEvent*);
    void HintNeutral(StateMachineAction*, InteractionEvent*);
 
    // State machine actions: drag gestures
    void InitTranslation(StateMachineAction*, InteractionEvent*);
    void Translate(StateMachineAction*, InteractionEvent*);
    void EndTranslation(StateMachineAction*, InteractionEvent*);
 
    void InitRotation(StateMachineAction*, InteractionEvent*);
    void Rotate(StateMachineAction*, InteractionEvent*);
    void EndRotation(StateMachineAction*, InteractionEvent*);
 
    void SelectPosition(StateMachineAction*, InteractionEvent*);
 
    // Interaction state
    Point2D m_InitialClickPosition2D;
    double m_InitialClickPosition2DZ = 0.0;
    Point3D m_InitialClickPosition3D;
 
    Point2D m_CenterOfRotation2D;
    Point3D m_CenterOfRotation;
 
    // Output deltas / positions (populated before emitting events)
    Vector3D m_TranslationDelta;
    RotationDelta m_RotationDelta;
    Point3D m_SelectPosition;
 
    // Cursor management helpers
    void PushCursorFromResource(const std::string& resourceName);
    void PopCursorSafe();
    int m_NumPushedCursors = 0;
 
    // Hover hint cursor tracking
    enum class HintMode { None, Translate, Rotate };
    HintMode m_CurrentHintMode = HintMode::None;
 
    // Saved DisplayActionEventBroadcast configs for restore on EnableOriginalInteraction()
    bool m_OriginalInteractionDisabled = false;
    std::map<us::ServiceReferenceU, EventConfig> m_DisplayInteractionConfigs;
  };
 
} // namespace mitk
 
#endif