Center and Resize MainWindow

En Ar Bg De El Es Fa Fi Fr Hi Hu It Ja Kn Ko Ms Nl Pl Pt Ru Sq Th Tr Uk Zh

The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow):

void MainWindow::centerAndResize() {
    // get the dimension available on this screen
    QSize availableSize = qApp->desktop()->availableGeometry().size();
    int width = availableSize.width();
    int height = availableSize.height();
    qDebug() << "Available dimensions " << width << "x" << height;
    width = 0.9; // 90% of the screen size
    height = 0.9; // 90% of the screen size
    qDebug() << "Computed dimensions " << width << "x" << height;
    QSize newSize( width, height );

    setGeometry(
        QStyle::alignedRect( 
            Qt::LeftToRight,
            Qt::AlignCenter,
            newSize,
            qApp->desktop()->availableGeometry()
        )
    );
}