#include "stdafx.h"

void gotoxy(int xpos, int ypos)
{
    COORD scrn;
    HANDLE hOuput = GetStdHandle(STD_OUTPUT_HANDLE);
    scrn.X = xpos; scrn.Y = ypos;
    SetConsoleCursorPosition(hOuput, scrn);
}

void printMatrix(int **d, int n) {
    cout << "Ваш граф: " << endl;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cout.width(5);
            if (d[i][j] == INF) {
                cout << 0 << " ";
            }
            else {
                cout << d[i][j] << " ";
            }
            cout.width();
        }
        cout << endl;
    }
}

void getFromConsole(int **a, int&n, int &A, int &B, int& C, int &D) {
    cls;

    bool error = false;
    do {
        error = false;
        cout << "Введiть розряднiсть матрицi (n >= 4) >: ";
        cin >> n;

        if (cin.fail() || n < 4) {
            cin.clear();
            cin.sync();
            cout << "Некоректi даннi. Спробуйте ще раз" << endl;
            error = true;
        }
    } while (error);
    for (int i = 0; i < n; i++) {
        a[i] = new int[n];
        for (int j = 0; j < n; j++) {
            do {
                error = false;
                cout << " Введiть елемент [" << i << "," << j << "] >: ";
                cin >> a[i][j];

                if (i != j && (a[i][j] == 0 || a[i][j] == -1)) {
                    a[i][j] = INF;
                }

                if (cin.fail() || a[i][j] < 0) {
                    cin.clear();
                    cin.sync();
                    cout << "Некоректi даннi. Спробуйте ще раз" << endl;
                    error = true;
                }
            } while (error);
        }
    }
    do {
        error = false;
        cout << "Введiть вершини A,B,C,D >: ";
        cin >> A >> B >> C >> D;

        if (cin.fail() || A <= 0 || B <= 0 || C <= 0 || D <= 0) {
            cin.clear();
            cin.sync();
            cout << "Некоректi даннi. Спробуйте ще раз" << endl;
            error = true;
        }
        if (A > n || B > n || C > n || D > n) {
            cout << "Некоректi даннi. Спробуйте ще раз" << endl;
            error = true;
        }
    } while (error);
}

bool getFromFile(int**a, int &n, int &A, int &B, int& C, int &D) {
    cls;
    ifstream in("input.txt");
    if (!in) {
        return false;
    }
    in >> n;
    if (in.fail() || n < 4) {
        cout << "N=" << n << endl;
        wait;
        in.clear();
        in.sync();
        return false;
    }
    for (int i = 0; i < n; i++) {
        a[i] = new int[n];
        for (int j = 0; j < n; j++) {
            in >> a[i][j];
            if (i != j && (a[i][j] == 0 || a[i][j] == -1)) {
                a[i][j] = INF;
            }
            if (in.fail() || a[i][j] < 0) {
                in.clear();
                in.sync();
                return false;
            }
        }
    }
    in >> A >> B >> C >> D;
    if (in.fail() || A <= 0 || B <= 0 || C <= 0 || D <= 0) {
        in.clear();
        in.sync();
        return false;
    }
    if (A > n || B > n || C > n || D > n) {
        return false;
    }
    return true;

}

int showMenu(const char* menu[], int itemsCount) {
    int code = 0, p = 0;
    do
    {
        cls;
        puts("------------------------------- Зробiть вибiр: --------------------------------");
        for (int i = 0; i < itemsCount; i++)
        {
            int k = (80 - strlen(menu[i])) / 2;
            if (i == p)
            {
                gotoxy(29, 8 + i * 2);
                putchar('>');
            }
            gotoxy(k, 8 + i * 2); puts(menu[i]);
        }
        code = _getch();
        if (code == 80)
            p > itemsCount - 2 ? p = 0 : ++p;
        if (code == 72)
            p < 1 ? p = itemsCount - 1 : --p;
    } while (code != 13);
    return p;
}

void showAbout() {
    cls;
    ifstream fAbout("about.txt");
    if (!fAbout) {
        cout << "Файл справки не знайдено" << endl;
        wait;
        return;
    }
    while (!fAbout.eof()) {
        string st;
        getline(fAbout, st);
        puts(st.c_str());
    }
    system("pause");
}