void MainWindow::on_actionShowTextUnderIcons_toggled(bool b)
{
    ui->mainToolBar->setToolButtonStyle(b? Qt::ToolButtonTextUnderIcon : Qt::ToolButtonIconOnly);
    Settings.setTextUnderIcons(b);
}
void MainWindow::on_actionShowTextUnderIcons_toggled(bool b)
{
    ui->mainToolBar->setToolButtonStyle(b? Qt::ToolButtonTextUnderIcon : Qt::ToolButtonIconOnly);
    Settings.setTextUnderIcons(b);
}