Hi, all. I have received so much help from this list that I wanted to
share a small something back. It is a subclass of NSNumberFormatter to
format time duration. It works for me but I'm sure it could be
improved as well. You can download it from my iDisk public folder (http://idisk.mac.com/jrphelps-Public
from the web) under Code/JPDurationToDecimalNumberFormatter.zip
I wrote this class for a calculator application for computing selling
prices for products based on time required and an hourly rate. It
could also be used for a billing application or anywhere else time
formatting is desirable.
It handles times in the format [dd:]hh:mm meaning that if there are
two components, it reads as hours and minutes but if you add a third
component it reads as days, hours, and minutes. It then converts this
value into a decimal number representing the number of hours. So,
12:15 would be 12.25, 1:13:45 would be 37.75. If the user enters
anything other than a colon separated string, it falls back to super.
It can also handle input as a decimal and then convert it to time
formatted string so 8.5 can be entered and display as 8:30.
Anyway, I hope someone finds it useful and I welcome your thoughts,
comments, and improvements. I have licensed it as a Creative Commons
Attribution-Share Alike 3.0 United States license. If this is too
restrictive, tell me. What I want is the "Don't Be a Jerk" and "Tell
Me If You Use It" license. :)
Cheers,
Jamie
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