SoShowFPS.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
**
**************************************************************************************/
 
#ifndef SO_SHOW_FPS_H
#define SO_SHOW_FPS_H
 
 
 
#include "SoUtilsSystem.h"
#include "mlTimeCounter.h"
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFColor.h>
#include <Inventor/fields/SoSFFloat.h>
 
//=============================================================
//=============================================================
class SOUTILS_EXPORT SoShowFPS : public SoNode {
 
  SO_NODE_HEADER(SoShowFPS);
 
public:
  // Constructor
  SoShowFPS();
 
  static void    initClass();
 
  void   GLRender(SoGLRenderAction *action) override;
 
  bool affectsState() const override { return false; }
 
 
  SoSFInt32 numAverageFrames;
 
  SoSFBool  drawRepaintCount;
  SoSFBool  drawFPS;
 
  SoSFInt32 fontSize;
 
  SoSFColor color;
 
  SoSFFloat alpha;
 
protected:
  ~SoShowFPS() override;
 
private:
  ml::TimeCounter _timer;
  std::vector<float> _recentTimeSpent;
 
  int _repaintCount;
};
 
#endif