line numbering in text editor.

[parulkalra]

I am folllowing this link :
http://qt-project.org/doc/qt-4.8/widgets-codeeditor.html

But in this Example they have created their code editor using coding but i have created my text editor using widget only. So i want code only for line numbering from this code editor example. can anybody help me for extracting the code only for line numbering?

[anda_skoa]

That example also uses just widgets.

Cheers,
_