CTime.cpp

#include <iostream>
#include "CTime.h"

using namespace std;

CTime::CTime()
{
}

CTime::CTime(int gio_i, int phut_i, int giay_i)
{
    this->gio_i_ = gio_i;
    this->phut_i_ = phut_i;
    this->giay_i_ = giay_i;
}

CTime::~CTime()
{
}

void CTime::nhap(int gio_i, int phut_i, int giay_i)
{
    this->gio_i_ = gio_i;
    this->phut_i_ = phut_i;
    this->giay_i_ = giay_i;
}

void CTime::xuat()
{
    cout << gio_i_ << " gio, " << phut_i_ << " phut, " << giay_i_ << " giay." << endl;
}

int CTime::covert_to_sec()
{
    int time_i;
    time_i = this->gio_i_ * 3600 + this->phut_i_ * 60 + this->giay_i_;
    return time_i;
}

void CTime::covert_to_time(int sec_i)
{
    int gio_i_ = 0;
    int phut_i_ = 0;
    int giay_i_ = 0;
    gio_i_ = sec_i / 3600;
    sec_i %= 3600;
    phut_i_ = sec_i / 60;
    giay_i_ = sec_i % 60;
    this->nhap( gio_i_, phut_i_, giay_i_);
}

void CTime::cong(int sec_i)
{
    this->covert_to_time(this->covert_to_sec() + sec_i);
}

bool CTime::tru(int sec_i)
{
    if (this->covert_to_sec() - sec_i >= 0)
    {
        this->covert_to_time(this->covert_to_sec() - sec_i);
        return 1;
    }
    return 0;
}

CTimeSpan CTime::tru_to_span(CTime time)
{
    CTimeSpan span;
    if (this->covert_to_sec() - time.covert_to_sec() >= 0)
    {
        span.covert_to_time_span(this -> covert_to_sec() - time.covert_to_sec());
    }
    return span;
}

void CTime::cong1giay()
{
    this->covert_to_time(this->covert_to_sec()+1);
}

void CTime::tru1giay()
{
    this->covert_to_time(this->covert_to_sec() - 1);
}

void nhap(CTime &time)
{
    int gio_i, phut_i, giay_i;
    do
    {
        cout << "Nhap thoi gian (gio phut giay) : ";
        cin >> gio_i >> phut_i >> giay_i;
    } while (gio_i < 0 || phut_i < 0 || giay_i<0);

    if (giay_i > 60)
    {
        phut_i += giay_i / 60;
        giay_i %= 60;

    }
    if (phut_i > 60)
    {
        gio_i += phut_i / 60;
        phut_i %= 60;
    }
    time.nhap(gio_i, phut_i, giay_i);
}

int main()
{
    CTime a(1, 1, 1);
    CTime b(24, 59, 59);
    CTimeSpan c = b.tru_to_span(a);
    c.xuat();
    system("pause");
}