Problem regarding item selection/GraphicsItems/GraphicsScene and event propagation

[fres]

I have a scene with some items, when I click in the view/scene I want to perform some operations, like draw with the mouse etc., but when I click on an item I want to do stuff with that item. Problem is when I click near the edges of an item. The event is handled by both the item and my custom event handler.

In my subclassed scene code i have(pseudo)

mousePressed(event)
{
	// send events to items
	QGraphicsScene::mousePressed(event);
	if(event->isAccepted())
	{
		return;
	}
	// send event to active state
	emit(myMousePressed(event));
}

mousePressed(event)
{
	// send events to items
	QGraphicsScene::mousePressed(event);
	if(event->isAccepted())
	{
		return;
	}
	// send event to active state
	emit(myMousePressed(event));
}

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I'm fairly new to qt so maybe I've designed the custom event handler in a bad way.

The way it's done is by a somewhat modified state pattern. I have some state classes that connects to the custom event signals. The active state object is determined by a setState in the graphicsscene subclass. When state A is active, A's code for e.g left mouse press is run. By doing it this way a massive switch/case is avoided.

But again, it's the events which reach both items and my event handler that causes the trouble

Any ideas or comments?

[marcel]

The simplest way that comes to mind is:

mousePressEvent(event)
{
  if( itemAt( event->pos()) ) 
  {
    //you clicked on an item
  } 
  else 
  {
     //no item there
  }
}

mousePressEvent(event)
{
  if( itemAt( event->pos()) ) 
  {
    //you clicked on an item
  } 
  else 
  {
     //no item there
  }
}

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Using accepted() is a bit ambiguous. The item can reject the event, for example.