DiskUsageInteractive/include/Display.hpp

#ifndef H_Display
#define H_Display

#include <iostream>
#include <string>

#include <sys/ioctl.h> //ioctl() and TIOCGWINSZ
#include <unistd.h> // for STDOUT_FILENO

class Display
{
    public:
        Display();

        unsigned int Rows() const;
        unsigned int Cols() const;

        /// Returns a winsize structure with size.ws_row is the number of rows, size.ws_col is the number of columns.
        static winsize GetTerminalSize();

        /// Clears the whole screen.
        static void ClearScreen();

    protected:
        unsigned int screenRows;//<! Number of rows currently displayed in the screen
        unsigned int screenCols;//<! Number of columns currently displayed in the screen
};

/// Creates a progress bar
std::string GenerateProgressBar(unsigned int width, unsigned int current, unsigned int total, bool showPercentage = true, std::string const& fillChar = "\u25A0");

/// Converts a size in bytes to a human readable size (To, Go, Mo, ko, o).
/// If SI_units is false, the size will be displayed using powers of 1024 instead of 1000, producing Mio, kio etc.
/// The suffix can be specified. Default is 'o' for 'octet'. Use 'b' for bits or 'B' for bytes.
std::string Bytes2HumanReadable(uint64_t size, bool SI_units = true, const char* suffix = "o");

#endif