[Qt-interest] Owner draw QTextEdit?

[Bob Hood]

I'm using v4.4.3, and I'm interested in enhancing the way text is being
displayed in a multi-line QTextEdit.  Specifically, I want to be able to
draw character representations for things that are not printable, like
tabs, spaces and carriage returns.  Looking through the class (and its
inheritance), I'm not seeing a straight-forward way of accomplishing
this via some kind of "owner draw" mechanism.  I also didn't see
anything (or perhaps I missed it) in the examples.

Can somebody point me in the right direction on this?  Perhaps a link to
some code example that does custom drawing of text?

-- 
Render me gone,                       |||
Bob                                 ^(===)^
---------------------------------oOO--(_)--OOo---------------------------------
 With devotion's visage, and pious action, we do sugar o'er the devil himself.
                                                      - Hamlet, Act 3, Scene 1