//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
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// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
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// ********************************************************************
//

// Frederick Jones TRIUMF 07 January 2018


#ifndef G4OPENINVENTORQTEXAMINERVIEWER_HH
#define G4OPENINVENTORQTEXAMINERVIEWER_HH

#if defined (G4VIS_BUILD_OIQT_DRIVER) || defined (G4VIS_USE_OIQT)

//#include <map>
//#include <vector>
//#include <fstream>
//#include <Inventor/SbLinear.h>
//#include <Inventor/nodes/SoLineSet.h>
#include <Inventor/nodes/SoEventCallback.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.h>
#include <Inventor/events/SoKeyboardEvent.h>

class SoCoordinate3;
class SoFont;
class SoText2;
class SoPointSet;

class G4OpenInventorQtExaminerViewer : public SoQtExaminerViewer {

  //  friend class G4OpenInventorQtExaminerViewerMessenger;
  // FWJ
  friend class G4OpenInventorQtViewer;

private:

  static G4OpenInventorQtExaminerViewer* viewer;
   //  void (*escapeCallback)(void *);
   //  void * examinerObject;
   //  SbBool lshiftdown, rshiftdown, lctrldown, rctrldown;
  
public:

  // Same constructor as the SoQtExaminerViewer
  G4OpenInventorQtExaminerViewer(QWidget* parent = NULL,
	     const char* name = NULL,
	     SbBool embed = TRUE, 
	     SoQtFullViewer::BuildFlag flag = BUILD_ALL,
	     SoQtViewer::Type type = BROWSER);

  ~G4OpenInventorQtExaminerViewer();

protected:
  // FWJ why this?
  // Same constructor as the SoQtExaminerViewer 
  //  G4OpenInventorQtExaminerViewer(QWidget parent,
  //	     const char *name,
  //	     SbBool embed,
  //	     SoQtFullViewer::BuildFlag flag,
  //	     SoQtViewer::Type type,
  //	     SbBool build);

  // FWJ try to handle events as in XtExaminerViewer
  SbBool processSoEvent(const SoEvent* const event);

   void construct(const SbBool build);
   void buildWidget(QWidget* parent);


};

#endif

#endif /* G4OPENINVENTORQTEXAMINERVIEWER_HH */