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void QSpeedTest::_checkForProgramUpdates()
{
    QNetworkAccessManager manager;
    QNetworkReply *download;
    QEventLoop loop;
    int remoteVersion;

    _w.slotLog(trUtf8("Checking online for an updated version of %1").arg(PROGRAMNAME));
    QTimer::singleShot(UPDATECHECKTIMEOUTSECS * 1000, &loop, SLOT(quit()));
    download = manager.get(QNetworkRequest(QUrl(PROJECTVERSIONURL)));    // From here on, download pointer does not require manual deletion!
    connect(download, SIGNAL(finished()), &loop, SLOT(quit()));
    loop.exec();

    if(download->isRunning() || download->error())
    {
        download->abort();
        _w.sl ... Читать дальше »

void MainWindow::centerOnDesktop()
{
    quint16 screenWidth, width, screenHeight, height, x, y;
    QSize windowSize;

    screenWidth = QApplication::desktop()->width();
    screenHeight = QApplication::desktop()->height();
    windowSize = size();
    width = windowSize.width();
    height = windowSize.height();
    x = (screenWidth - width) / 2;
    y = (screenHeight - height) / 2;
    y -= 100;
    move(x, y);
}

if(!QUrl(string).isValid())
    {
        QMessageBox::critical(NULL, trUtf8("Error"), trUtf8("You have entered an invalid URL."));

        return;
    }