Here is the problem: I want to have a black background and a lot of planets drawn on the map. I want to be able to click on a planet, and then this planet should send a signal to a slot that will show information about this specific planet.

The question is then how to do this.
Should I draw a large image and then just scroll it, and when I click on the image, should I search for the planet to see if any one was selected?

Any ideas on this?