don't worry that was then, this is now. I've been writing windows software professionally for 9 years! However, in 1996 when I wrote a report generator, I DID use Integer maths to perform the scaling on the print preview to avoid loads of floating point maths and it was pretty quick :-)
readability and reuse is much more important, even if your code runs slower (not that likely).
readability and reuse is much more important, even if your code runs slower (not that likely).