progress.hpp

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#ifndef BARRY_PROGRESS_HPP
#define BARRY_PROGRESS_HPP
 
#ifndef BARRY_PROGRESS_BAR_WIDTH
#define BARRY_PROGRESS_BAR_WIDTH 80
#endif
 
class Progress {
private:
    int    width;     
    int    n;         
    double step_size; 
    int last_loc;     
    int cur_loc;      
    int i;            
    
public:
 
    Progress(int n_, int width_);
    ~Progress() {};
 
    void next();
    void end();
 
};
 
inline Progress::Progress(int n_, int width_) {
 
 
    width     = std::max(7, width_ - 7);
    n         = n_;
    step_size = static_cast<double>(width)/static_cast<double>(n);
    last_loc  = 0;
    i         = 0;
 
}
 
inline void Progress::next() {
 
    cur_loc = std::floor((++i) * step_size);
 
    for (int j = 0; j < (cur_loc - last_loc); ++j)
        printf_barry("|");
 
    last_loc = cur_loc;
 
}
 
inline void Progress::end() {
 
    printf_barry(" done.\n");
 
}
 
#endif