FWTEveViewer.h

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#ifndef Subsystem_Package_FWTEveViewer_h
#define Subsystem_Package_FWTEveViewer_h
// -*- C++ -*-
//
// Package:     Subsystem/Package
// Class  :     FWTEveViewer
//
//
// Original Author:
//         Created:  Tue, 03 Feb 2015 21:46:04 GMT
//
 
// system include files
 
#include <thread>
#include <future>
#include <mutex>
#include <condition_variable>
 
// user include files
 
#include "TEveViewer.h"
 
// forward declarations
 
class FWTGLViewer;
 
class FWTEveViewer : public TEveViewer {
public:
  FWTEveViewer(const char* n = "FWTEveViewer", const char* t = "");
  ~FWTEveViewer() override;
 
  // ---------- const member functions ---------------------
 
  // ---------- static member functions --------------------
 
  static bool SavePng(const TString& file, UChar_t* xx, int ww, int hh);
  static bool SaveJpg(const TString& file, UChar_t* xx, int ww, int hh);
 
  // ---------- member functions ---------------------------
 
  FWTGLViewer* fwGlViewer() { return m_fwGlViewer; }
 
  FWTGLViewer* SpawnFWTGLViewer();
 
  std::future<int> CaptureAndSaveImage(const TString& file, int height = -1);
 
private:
  FWTEveViewer(const FWTEveViewer&) = delete;  // stop default
 
  const FWTEveViewer& operator=(const FWTEveViewer&) = delete;  // stop default
 
  void spawn_image_thread();
 
  // ---------- member data --------------------------------
 
  FWTGLViewer* m_fwGlViewer;
 
  std::vector<unsigned char> m_imgBuffer;
 
  TString m_name;
  int m_ww, m_hh;
  bool m_thr_exit = false;
  std::thread* m_thr = nullptr;
  std::promise<int> m_prom;
  std::mutex m_moo;
  std::condition_variable m_cnd;
};
 
#endif