connect(showStatusbar, SIGNAL(toggled(bool)), statusBar(), SLOT(setVisible(bool)));
connect(showStatusbar, SIGNAL(toggled(bool)), this, SLOT(saveStatusBarStatus(bool)));
connect(showStatusbar, SIGNAL(toggled(bool)), statusBar(), SLOT(setVisible(bool)));
connect(showStatusbar, SIGNAL(toggled(bool)), this, SLOT(saveStatusBarStatus(bool)));