QGraphicsItem and focus for key input

[fossill]

I just started learning QT in the past week or so and I am an experienced programmer (java, c++, scripting, etc). I've looked through much of the documentation on the graphics view framework including the examples. Since I still did not completely understand, I took the mouse collision demo and started playing with it. What I want to do is restrict the scene to one mouse and be able to control that mouse with the arrow keys.

I'm calling

this->setFlag(ItemIsFocusable,true);

this->setFlag(ItemIsFocusable,true);

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In the constructor of my item. I also thought that I could call

this->setFocus()

this->setFocus()

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to get the focus for that item too - but my item is not yet visible when it is being constructed (it hasn't even been added to the scene yet!).

I got around this by utilizing the timerEvent, calling setFocus in there, and then it will accept keyPressEvent - but I don't want to do that! Thats crazy talk!

What is the correct way to handle this so that I can give my item focus after being added to the scene?

Do I do something like this?

void MyScene::keyPressEvent(QKeyEvent *event)
 {
	 printf("scene pressed!!!\n");
	 QList<QGraphicsItem *> myItems = items();
	 foreach (QGraphicsItem *item, myItems)
	 {
		 item->setFocus();
	 }
 }

void MyScene::keyPressEvent(QKeyEvent *event)
 {
	 printf("scene pressed!!!\n");
	 QList<QGraphicsItem *> myItems = items();
	 foreach (QGraphicsItem *item, myItems)
	 {
		 item->setFocus();
	 }
 }

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And then somehow pass on the event to my item? Any thoughts would be appreciated!