Re: Initial Thoughts on HIView

Subject: Re: Initial Thoughts on HIView
From: Gordon Apple <email@hidden>
Date: Wed, 25 Jun 2003 18:57:46 -0700
User-agent: Microsoft-Entourage/10.1.1.2418

on 6/25/03 2:55 PM, Mike Rossetti at email@hidden wrote:

> The Wiring editor also understands the data model as described by the
> application--perhaps it goes so far as to create and edit the data model that
> the application uses. It also allows 'controller' objects to be created that
> represent TCommand constructs. These then can be wired together.

I was trying to figure out how these "controller" objects could relate to
TCommands. I really don't understand their concept of MVC
(Model-View-Controller). I'm no expert here, but my own objects do not pass
view data through the controller. I have separate rendering objects to go
from model to view. I did see a mention of "Transform" objects in the
Controller, which sound suspiciously like Larry Rosenstein's "filters" in
the MacApp book examples. I used the latter for a long time until I needed
to support multi-level undo, and had to rewrite everything to get rid of
filters. Now my command classes work more like the Design Pattern classes
that do a single action to "Do" or "Undo" changes to data in the Model.

--
Gordon Apple
Ed4U
Redondo Beach, CA
email@hidden
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References:
	>Initial Thoughts on HIView (From: Mike Rossetti <email@hidden>)

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