[Qt-interest] mask for spin box

[Ian Thomson]

Hi,

Robert Wood wrote:
> It does it as standard. You can prove this to yourself very simply by 
> simply sticking one on a form and keeping the up arrow depressed. You'll 
> soon see it flip from 9 to 10. :~)

I'm guessing he meant trailing digits, e.g. 01 instead of 1. This could 
probably be done by inheriting from the class and overriding 
textFromValue and valueFromText.

Cheers,
Ian.