I have a UI control that can be adjusted up and down using touch & drag.
I've been asked to provide a control value based on how far the drag is via
distance. So far so good.

What my designer wants is a value change of every 20 pixels or so (control
is 150px tall @ the moment) - so every 20 pixels = a change of 1. This will
require multiple touch and drags but he's fine with it.

The math is probably simple, but it's eluding me this morning. How can I
easily convert my distance (I also have an increment Bool so I know whether
it's addition or subtraction) to an appropriate value?

Eric
_______________________________________________

Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com

This email sent to arch...@mail-archive.com

Reply via email to