SmViewpointWrapper.h

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#ifndef SM_VIEWPOINTWRAPPER_H
#define SM_VIEWPOINTWRAPPER_H

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#include <Inventor/nodes/SoPerspectiveCamera.h>
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/actions/SoSearchAction.h>
#include <Inventor/SoLists.h>
#include <SmallChange/basic.h>

class SoPath;
class SoFullPath;
class SoPathSensor;
class SoSensor;
class SoFieldSensor;
class SoGetMatrixAction;

class SMALLCHANGE_DLL_API SmViewpointWrapper : public SoPerspectiveCamera {
  typedef SoPerspectiveCamera inherited;
  SO_NODE_HEADER(SmViewpointWrapper);
public:
  static void initClass(void);
  SmViewpointWrapper(void);

  void setSceneGraph(SoNode * root);

  static SbBool hasViewpoints(SoNode * root);

protected:
  ~SmViewpointWrapper();

private:
  void setViewpoint(SoPath * path);

  static void fieldsensor_cb(void * data, SoSensor * sensor);
  static void pathsensor_cb(void * data, SoSensor * sensor);
  static void set_bind_cb(void * data, SoSensor * sensor);

  void updateCamera(void);
  void updateViewpoint(void);

  void attachFieldSensors(void);
  void detachFieldSensors(void);


  void truncateLists(void);

  SoNodeList nodelist;
  SbPList set_bind_sensorlist;
  SoSearchAction sa;
  SoNode * scenegraph;
  SoFullPath * pathtoviewpoint;
  SoPathSensor * pathsensor;
  SoFieldSensor * positionsensor;
  SoFieldSensor * orientationsensor;
  SoFieldSensor * heightanglesensor;
  SoGetMatrixAction * gmaction;

  void attachSetBindSensors(void);
  void detachSetBindSensors(void);

  void sendBindEvents(SoNode * node, const SbBool onoff);
  void bindTopOfStack(void);

};

#endif //  SM_VIEWPOINTWRAPPER_H