From: Ryan Leavengood <leavengood@...>
Date: 2006-05-18T03:27:17+09:00
Subject: Re: Need help designing UI

On 5/17/06, Scott L Holmes <scottlholmes@gmail.com> wrote:
>
> Some form of context. A toolbarbutton is on a toolbar is on a viewer. In
> a generic way, when the viewer gets created, it would register a context
> which could be a simple random number. All sub-parts get the context?
> When the toolbarbutton fires it broadcasts a command constant and the
> context? Thinking out loud. Does avoid the references but now I gotta
> pass around a random number. In Ruby - that's a reference too. hmmmmm.

For the command constant you should use Ruby symbols:

:this_is_a_symbol
:another_one

In other words anything starting with a colon. These are unique per
invocation of Ruby, and :this will always equals :this through-out the
program. So in your case using something like :cmd_close or :CMD_CLOSE
would be the best choice.

Ryan