progress.h

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/**
 * @file progress.h
 * @author Ozgur Taylan Turan
 *
 * Simple Progress thread safe progress bar for Learning Curve Generation 
 *  tracking
 */
 
#ifndef __PROGRESS_H
#define __PROGRESS_H
namespace utils {
//-----------------------------------------------------------------------------
// ProgresssBar : A Simple Progress Bar that shows the perc. of your loop
//-----------------------------------------------------------------------------
class ProgressBar
{
public:
  ProgressBar(int total) : tot_(total), curr_(0), what_("Loop") 
  { }
  ProgressBar(std::string what, int total) : tot_(total), curr_(0), what_(what) 
  { }
 
  void Update()
  {
    #pragma omp critical
    {
      ++curr_;
      Show();
    }
  }
 
private:
  int tot_;
  int curr_;
  std::string what_;
 
  void Show()
  {
    double prog = static_cast<double>(curr_) / tot_;
    int perc = static_cast<int>(prog * 100.0);
    std::cout << "\r" << std::setw(3) << perc << " %" 
                                              << "  : " << what_ << std::flush;
    if (curr_ == tot_)
      std::cout << "\n\n" ;
    
  }
};
} // namespace utils
 
#endif