[MacRuby-devel] Yellow Fade Technique on NSTableView

[Morgan Schweers]

Greetings,
My application updates items periodically (and sometimes by user request) so
I wanted to show the user that something had changed should they be looking,
or have manually requested an update.  One example is that double-clicking
can cause an item to update...  Once I got the code working, I thought it
might be something other folks would like to use. A little extraction, and
here it is:

http://gist.github.com/846047

(It also shows how to set up double-click detection, which is easy, but I
hadn't figured out before, and took a little searching. :/ )

The code is based off an old blog post (
http://www.bdunagan.com/2009/04/26/core-animation-on-the-mac/ ) but
_heavily_ translated into Ruby-ish stylings.  It might also be used as a
cool example of using Core Animation in your UI; I'm sure happy with how it
came out!  I have to imagine that the right way to use it for real will be
to make it a module, and 'include' it into delegates as needed.

Hope folks enjoy!

--  Morgan Schweers

p.s. Please don't hesitate to let me know if you have problems with it, or
if I'm making some tyro mistakes!
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