cs-lab34/text.cpp

#include "text.h"
#include <iostream>
#include <iomanip>
using namespace std;

void show_histogram_text(vector<size_t> bins, size_t bin_count) {
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 15;
    size_t max_bin = bins[0];
    size_t total_count = 0;

    for (size_t i = 0; i < bin_count; i++) {
        if (bins[i] > max_bin) {
            max_bin = bins[i];
        }
        total_count += bins[i];
    }

    for (size_t i = 0; i < bin_count; i++) {
        cout << setw(3) << bins[i] << " |";

        size_t bar_length;
        if (max_bin > MAX_ASTERISK) {
            bar_length = static_cast<size_t>((static_cast<double>(bins[i]) / max_bin) * MAX_ASTERISK);
        } else {
            bar_length = bins[i];
        }

        for (size_t j = 0; j < bar_length; j++) {
            cout << "*";
        }

        if (total_count > 0) {
            int percentage = static_cast<int>((static_cast<double>(bins[i]) / total_count) * 100 + 0.5);
            cout << setw(SCREEN_WIDTH - 7 - bar_length) << right << percentage << "%";
        } else {
            cout << setw(SCREEN_WIDTH - 7 - bar_length) << right << "0%";
        }

        cout << endl;
    }
}