I'm a newbie using 4.4.3 and I've noticed something in the examples 
documentation that should be updated for 4.5 if it hasn't already been done:

 From doc/html/qstyleditemdelegate.html:

QStyledItemDelegate and QItemDelegate

QStyledItemDelegate has taken over the job as default delegate - leaving 
QItemDelegate behind. They will now co-exist peacefully as independent 
alternatives to painting and providing editors for items in views. The 
difference between them is that the new delegate uses the current style 
to paint its items. We therefore recommend using QStyledItemDelegate as 
base when implementing custom delegates. The code required should be 
equal unless the custom delegate also wishes to use the style for drawing.

However, the examples that use delegates in the "Item View" section have 
not been updated to use QStyledItemDelegate. Luckily for me there's a 
code snippet in doc/src/snippets/widgetdelegate.cpp that shows how to 
use QApplication::style()->drawControl to paint controls in the correct 
style, but the example docs just got in the way. If I had any hair to 
begin with, I'd have less now.... :)
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