#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::quitSlot()
{
    qApp->quit();
}

void MainWindow::startTimer()
{
    imageCount = 9;
    QString num;
    num.setNum(imageCount);
    ui->label->setText(num);
    timer->start(1000);
}

void MainWindow::update()
{
    if (imageCount > 0)
    {
        imageCount--;
        QString num;
        num.setNum(imageCount);
        ui->label->setText(num);
    }
    else
    {
        timer->stop();
    }
}