progression.cxx

#include "progression.h"
 
#include <iostream>
 
namespace cgv {
    namespace utils {

progression::progression() 
{
    enumerations = -1; 
}

progression::progression(const std::string& process, size_t total, int count) 
{
    init(process, total, count); 
}

void progression::init(const std::string& process, size_t total, int count) 
{
    if (count > 0) {
        std::cout << process << ":"; std::cout.flush();
        percent      = 0;
        enumerations = 0;
        next_shown   = next_step = (total-1.1)/count;
        percent_step = 100.0f/count;
    }
    else
        enumerations = -1;
}

void progression::step()
{
    if (enumerations < 0) 
        return;
    if (++enumerations > next_shown) {
        next_shown += next_step;
        percent   += percent_step;
        std::cout << " " << percent << "%";
        if (percent > 99.9f)
            std::cout << std::endl;
        else
            std::cout.flush();
    }
}
 
    }
}