Passing event to parent

QPissedOff · 26th April 2006, 16:23

Hi all,
I have a widget (OpArea) that reimplements QWidget's wheelEvent handler. The parent of this widget is a scrollArea. I need the wheelEvent of OpArea to be called and under certain circumstances (no Alt modifier) the event needs to be propagated to the parent, to scroll the window.

Qt Code:

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void OpArea::wheelEvent(QWheelEvent *event)
{
	if(event->modifiers() == Qt::AltModifier)
	{
		//handle the event in OpArea
		static int theta = 0;
		if (event->delta()>=0)
		{
			 theta= theta +20;
		}
		else
			theta = theta -20;
 
		if (theta <0) 
			theta = 340;
		if (theta> 340)
			theta = 0;
		cout << theta <<endl;
	}
	else
	{
		//send to parent's wheelEvent...		
	}
 
}

void OpArea::wheelEvent(QWheelEvent *event)
{
	if(event->modifiers() == Qt::AltModifier)
	{
		//handle the event in OpArea
		static int theta = 0;
		if (event->delta()>=0)
		{
			 theta= theta +20;
		}
		else
			theta = theta -20;
			
		if (theta <0) 
			theta = 340;
		if (theta> 340)
			theta = 0;
		cout << theta <<endl;
	}
	else
	{
		//send to parent's wheelEvent...		
	}
	
}

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I think i should be using QApplication::notify() or maybe postEvent() but I am not sure exactly how.... I would appreciate any ideas, thanks