interactive image recommendation

Hello,

On a graphicsscene, I want to put an image and divide it into four clickable virtual quarters; and when i click one of them, it should zoom in and activate some buttons(which are also parts of the image) on the image.

Does anybody have an advise to accomplish that in a good way..?

Ive thought embedding a mainwindow into the scene by using proxywidget; and putting the image into mainwindow; and covering some pushbuttons with pixmap;and placing those pushbuttons into the image; and.....Something like that...

But i am wondering if there is a better way to do that job...In the attachment, i put the quarter part of the image, those buttons should be clickable..