SoView2DTransRot.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
 
 
#pragma once
 
#include "SoView2DExtension.h"
 
#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();
 
  bool   evalEvent(SoView2D* view2d, View2DSliceList* slicelist,
                           View2DEvent* ec, View2DEventPhase phase) override;
 
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;
};