[PyQt] How to show just a picture upon a window

[projetmbc]

Hello,
I would like to show just a picture upon my window. I've find the 
following method.

============================
pixmap = QtGui.QPixmap("Collines.jpg")
splash = QtGui.QSplashScreen(pixmap)
splash.setMask(pixmap.mask())
splash.show()
splash.showMessage(u'')
t = time.sleep(1)
============================

This works but I would like to do something more usefull.
             1. The picture must appear near the position of the mouse.
             2. The picture must be visible for a time such 5 seconds 
except if the user do something like pressing a key, or clicking on the 
picture.

Every klind of information is welcome.
Best regards.

Christophe.