how to implement code completion in qt

Question

i am writing an ide using qt (on c++) and i need to add auto completion feature to it

so i want to know :

how to do that (i am using qtPlainTextEdit) ?

what the data structure i should use ?

Answer 1

That's a big, complex feature. I'd look at how it's been done in the Qt Creator.

Answer 2

I think you should take a look at this:
http://doc.trolltech.com/4.6/tools-customcompleter.html

I used this example to understand CodeCompletion and I think it is fine :)

[edit] Qt has a own class for such purpose called QCompleter: http://doc.trolltech.com/4.6/qcompleter.html