vtkInteractorStyleImage.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkInteractorStyleImage_h
#define vtkInteractorStyleImage_h
 
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyleTrackballCamera.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
 
// Motion flags
 
#define VTKIS_WINDOW_LEVEL 1024
#define VTKIS_SLICE 1025
 
// Style flags
 
#define VTKIS_IMAGE2D 2
#define VTKIS_IMAGE3D 3
#define VTKIS_IMAGE_SLICING 4
 
VTK_ABI_NAMESPACE_BEGIN
class vtkImageProperty;
 
class VTKINTERACTIONSTYLE_EXPORT VTK_MARSHALAUTO vtkInteractorStyleImage
  : public vtkInteractorStyleTrackballCamera
{
public:
  static vtkInteractorStyleImage* New();
  vtkTypeMacro(vtkInteractorStyleImage, vtkInteractorStyleTrackballCamera);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkGetVector2Macro(WindowLevelStartPosition, int);
  vtkGetVector2Macro(WindowLevelCurrentPosition, int);


  void OnMouseMove() override;
  void OnLeftButtonDown() override;
  void OnLeftButtonUp() override;
  void OnMiddleButtonDown() override;
  void OnMiddleButtonUp() override;
  void OnRightButtonDown() override;
  void OnRightButtonUp() override;

  void OnChar() override;
 
  // These methods for the different interactions in different modes
  // are overridden in subclasses to perform the correct motion. Since
  // they might be called from OnTimer, they do not have mouse coord parameters
  // (use interactor's GetEventPosition and GetLastEventPosition)
  virtual void WindowLevel();
  virtual void Pick();
  virtual void Slice();
 
  // Interaction mode entry points used internally.
  virtual void StartWindowLevel();
  virtual void EndWindowLevel();
  virtual void StartPick();
  virtual void EndPick();
  virtual void StartSlice();
  virtual void EndSlice();


  vtkSetClampMacro(InteractionMode, int, VTKIS_IMAGE2D, VTKIS_IMAGE_SLICING);
  vtkGetMacro(InteractionMode, int);
  void SetInteractionModeToImage2D() { this->SetInteractionMode(VTKIS_IMAGE2D); }
  void SetInteractionModeToImage3D() { this->SetInteractionMode(VTKIS_IMAGE3D); }
  void SetInteractionModeToImageSlicing() { this->SetInteractionMode(VTKIS_IMAGE_SLICING); }


  vtkSetVector3Macro(XViewRightVector, double);
  vtkGetVector3Macro(XViewRightVector, double);
  vtkSetVector3Macro(XViewUpVector, double);
  vtkGetVector3Macro(XViewUpVector, double);
  vtkSetVector3Macro(YViewRightVector, double);
  vtkGetVector3Macro(YViewRightVector, double);
  vtkSetVector3Macro(YViewUpVector, double);
  vtkGetVector3Macro(YViewUpVector, double);
  vtkSetVector3Macro(ZViewRightVector, double);
  vtkGetVector3Macro(ZViewRightVector, double);
  vtkSetVector3Macro(ZViewUpVector, double);
  vtkGetVector3Macro(ZViewUpVector, double);

  void SetImageOrientation(const double leftToRight[3], const double bottomToTop[3]);

  virtual void SetCurrentImageNumber(int i);
  int GetCurrentImageNumber() { return this->CurrentImageNumber; }

  vtkImageProperty* GetCurrentImageProperty() { return this->CurrentImageProperty; }
 
protected:
  vtkInteractorStyleImage();
  ~vtkInteractorStyleImage() override;
 
  int WindowLevelStartPosition[2];
  int WindowLevelCurrentPosition[2];
  double WindowLevelInitial[2];
  vtkImageProperty* CurrentImageProperty;
  int CurrentImageNumber;
 
  int InteractionMode;
  double XViewRightVector[3];
  double XViewUpVector[3];
  double YViewRightVector[3];
  double YViewUpVector[3];
  double ZViewRightVector[3];
  double ZViewUpVector[3];
 
private:
  vtkInteractorStyleImage(const vtkInteractorStyleImage&) = delete;
  void operator=(const vtkInteractorStyleImage&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif