MeVisLab/Standard/Sources/Inventor/SoView2D/extensions/SoView2DTransRot.h

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#ifndef __SoView2DTransRot_H
#define __SoView2DTransRot_H
//----------------------------------------------------------------------------------
// **InsertLicense** code
//----------------------------------------------------------------------------------

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

#ifndef __SoView2DExtension_H
#include "SoView2DExtension.h"
#endif

#include <Inventor/fields/SoSFRotation.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/projectors/SbSphereSheetProjector.h>

class SoView2D;

class SOVIEW2D_API SoView2DTransRot : public SoView2DExtension {

  SO_NODE_HEADER(SoView2DTransRot);

public:
    SoSFEnum  mouseFunctionButton1;
    SoSFEnum  mouseFunctionButton2;
    SoSFEnum  mouseFunctionButton1and2;

    SoSFEnum  mouseFunctionWheel;  // mouse wheel is handled like a key pair
    SoSFEnum  keyFunctionHoriCursor;
    SoSFEnum  keyFunctionVertCursor;
    SoSFEnum  keyFunctionPageKeys;

    SoSFBool  adaptCursorShape;

  SoSFRotation    rotation;
  SoSFVec3f       translation;

  SoSFFloat       fieldOfView;

  static void   initClass();

  SoView2DTransRot();

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

private:
    void doMouseFunction (int function, View2DSliceList* slicelist, View2DEvent* ec);

    void rotate      (View2DSliceList* slicelist, const SbVec2f& relMousePos,
                      float sensitivity);
    void rotateXAxis (View2DSliceList* slicelist,const SbVec2f& newMousePos,
                     const SbVec2f& deviceSize, float sensitivity);
    void rotateYAxis (View2DSliceList* slicelist, const SbVec2f& newMousePos,
                     const SbVec2f& deviceSize, float sensitivity);
    void rotateZAxis (View2DSliceList* slicelist, const SbVec2f& relMousePos,
                      float sensitivity);
    void pan         (View2DSliceList* slicelist, const SbVec2f& newMousePos,
                      float sensitivity);
    void slice       (View2DSliceList* slicelist, const SbVec2f& newMousePos,
                      float sensitivity);
    void zoom        (View2DSliceList* slicelist, const SbVec2f& newMousePos,
                      const SbVec2f& deviceSize, float sensitivity);

    virtual int getSuitableCursorShape (int function);

    void doStepFunction (int function, View2DSliceList* slicelist, bool up, bool shift);

    void panXStep   (View2DSliceList* slicelist, float step);
    void panYStep   (View2DSliceList* slicelist, float step);
    void sliceStep  (View2DSliceList* slicelist, float step);
    void rotXStep   (View2DSliceList* slicelist, float step);
    void rotYStep   (View2DSliceList* slicelist, float step);
    void rotZStep   (View2DSliceList* slicelist, float step);
    void zoomStep   (float offset);

private:
  SbSphereSheetProjector spinprojector;
  SbVec2f                lastMousePos;
  SbVec2f                deviceOrigin, deviceSize;
  bool                   mouseDown;
  bool                   onImage;
  
  unsigned               _prevWheelCode;
  int                    _sumWheel;
};

#endif