QMenuBar doesn't show up properly

[Cruz]

Hello!

I have a problem with a QMenuBar. It doesn't show up properly. Instead of all the QMenu and QAction inside it, it only shows a ">>" symbol like this:
menu.jpg

I can press the symbol and a menu of menus shows up and everything works fine. But this is still a problem. I tried playing around with the size of the widget the QMenuBar is inside, removed all relevant style sheet entries and reduced the contents of the QMenuBar to a single QMenu with one QAction inside. Nothing helps. This happens only on one of two PCs where I tested it (Win XP does not work, Win7 works). The code to produce the menu looks like this:

// Build the menu bar.
QMenuBar* menuBar = new QMenuBar();
QHBoxLayout* menuLayout = new QHBoxLayout(ui.menuWidget);
menuLayout->setMargin(0);
menuLayout->addWidget(menuBar);
menuLayout->addStretch(1);
ui.menuWidget->setLayout(menuLayout);
 
QMenu* fileMenu = menuBar->addMenu(tr("&File"));
 
QAction* saveStateAction = fileMenu->addAction(tr("&Save State"));
saveStateAction->setToolTip(tr("Saves the state history."));
saveStateAction->setShortcut(QKeySequence(tr("Ctrl+S")));
connect(saveStateAction, SIGNAL(triggered()), this, SLOT(saveStateHistory()));
 
// ...and more QMenus and QActions follow.

// Build the menu bar.
QMenuBar* menuBar = new QMenuBar();
QHBoxLayout* menuLayout = new QHBoxLayout(ui.menuWidget);
menuLayout->setMargin(0);
menuLayout->addWidget(menuBar);
menuLayout->addStretch(1);
ui.menuWidget->setLayout(menuLayout);

QMenu* fileMenu = menuBar->addMenu(tr("&File"));

QAction* saveStateAction = fileMenu->addAction(tr("&Save State"));
saveStateAction->setToolTip(tr("Saves the state history."));
saveStateAction->setShortcut(QKeySequence(tr("Ctrl+S")));
connect(saveStateAction, SIGNAL(triggered()), this, SLOT(saveStateHistory()));

// ...and more QMenus and QActions follow.

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Any advice?

thanks,
Cruz

[anda_skoa]

If you want a menu bar, maybe you could use QMainWindow instead? It already has a menu bar and proper layout to handle it.

Cheers,
_