Widgets don't receive hover event in windows style

[schrute]

I am trying to change the appearance of QMenuBar item on hover, however, it seems the widget doesn't receive the hover event. Only the sunken state is getting honoured. Following is my style code

class MenuBarStyle : public QProxyStyle
{
public:
	PtMenuBarStyle()
		:QProxyStyle("windows") 
	{}

	void drawControl(ControlElement element, const QStyleOption* pOption,
		QPainter* pPainter, const QWidget* pWidget = nullptr) const override
	{
		if (element == CE_MenuBarItem)
		{
			if (pOption->state & QStyle::State_MouseOver
				|| pOption->state & QStyle::State_Sunken)
			{
				pPainter->fillRect(pOption->rect, QColor("#FF0000"));
			}
			QCommonStyle::drawControl(element, pOption, pPainter, pWidget);
		}
		else if (element == CE_MenuBarEmptyArea)
		{

		}
		else {
			QProxyStyle::drawControl(element, pOption, pPainter, pWidget);
		}
	}

	int pixelMetric(PixelMetric metric, const QStyleOption* pOption = nullptr,
		const QWidget* pWidget = nullptr) const override
	{
		if (metric == PM_MenuBarItemSpacing) {
			return PtUtil::getDimensionBasedOnDPI(16);
		}
		else {
			return QProxyStyle::pixelMetric(metric, pOption, pWidget);
		}
	}


};

I have also called setAttribute(Qt::WA_Hover) and setMouseTracking(true) on the QMenuBar object but it still doesn't work.

[Christian Ehrlicher]

QMenuBar::paintEvent() does not set the MouseOver state: https://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/widgets/qmenubar.cpp#n882 and https://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/widgets/qmenubar.cpp#n882

Looks like you have to derive from QMenuBar, override initStyleOption() and set it by your yourself.