Simpe OCC with Qt (visualization)

Hello everyone,

I am new to opencascade and I am trying to start with a simple example. I used some primitives like gp_Pnt, TopoDS_Shape etc. and I successed to compile and run them. However, when it comes to displaying those geometries, I get stucked. I searched for examples and I got this http://myweb.tiscali.co.uk/dolbey/QtOpenCascade/. But this one only supplies source code does not talk about what is needed to be done and very complicated for a new starter. Can you give me a very simple example which just draws something on qt with opencascade ? Or help me about what I must do for visualization ?

Note : I use fedora 64 bit system.