MeVisLab/Standard/Sources/Inventor/SoView2D/extensions/SoView2DSlicer.h

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#ifndef __SoView2DSlicer_H
#define __SoView2DSlicer_H
//----------------------------------------------------------------------------------
// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------

#ifndef __SoView2DInteractionExtension_H
#include "SoView2DInteractionExtension.h"
#endif

class SOVIEW2D_API SoView2DSlicer : public SoView2DInteractionExtension {

  SO_NODE_HEADER(SoView2DSlicer);

public:
  SoSFFloat sensitivity;

  static void   initClass();

  SoView2DSlicer();

  SoSFBool permitInteractionOutsideImage;

  void   updateValues();

  bool   evalEvent(SoView2D* view2d, View2DSliceList* slicelist,
    View2DEvent* ec, View2DEventPhase phase);

protected:
  void doSliceByMouse(float diffY, SoView2D* view2d);


  virtual void startPressAt(const SoPointerPosition& pos);
  virtual void dragMoveTo(const SoPointerPosition& pos);
  virtual SoPointingAction* endPress(int clickCount);

  int    _oldY;
  int    _sumY;
  unsigned _prevWheelCode;
  int    _sumWheel;
};

#endif