From: David Vallner <david@...>
Date: 2007-03-04T02:48:24+09:00
Subject: Re: Gui Builders for Ruby

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Kyle Schmitt wrote:
> Reading the tutorials for the GUI toolkits, and
> the tutorial for foxguib, it appears the idea is make you GUI, then
> have your classes inherit the GUI class.

I'd presume it looks so scary because doing a layered design is outside
of the scope of those tutorials.

Usually in my Qt code, I inherit from the GUI class into a class that
only handles the mapping of low-level GUI events into a separate layer
of logic actions. This gives you an extra level of indirection that lets
you reuse the same UI code for let's say a form-input and a read-only
variant of the same GUI, but there's nothing forcing you to put -all-
your logic into that layer. (It's just much simpler in introductory
tutorials - you have to admit that a clean, layered design usually takes
a while to wrap your head around.)

David Vallner


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