Re: Are there any generic controller classes?
Re: Are there any generic controller classes?
- Subject: Re: Are there any generic controller classes?
- From: Jon Hull <email@hidden>
- Date: Sun, 2 Sep 2007 05:21:47 -0700
On Sep 2, 2007, at 1:39 AM, Andrew Farmer wrote:
On 02 Sep 07, at 00:43, Frank Bettger wrote:
I'm reading the book Cocoa Programming, by Anguish,Buck and
Yacktman. It was
written in 2002. In a section discussing MVC they say that M is
mature since
there is a Foundation framwork and also that V is mature since
there is the
AppKit framework. However C is not mature as it could be. Here's a
small
quote.
If you are creating a document-centric application, then the
various classes
surrounding the NSDocument class will provide much of the
controller logic
you need. Sadly, in other parts of the controller layer, Cocoa
does not yet
provide much help. … There is no generic "controller framework....
The lack
of a controller framework is one area that could stand
improvement. Note
that Apple does have some generic controller objects that would help.
My question is if there has been any improving in this area the
last 5 years
since the book was written.
That's a rather odd statement for the book to be making. The
Foundation storage classes (NS[Mutable]Array, et. al.) are only a
small part of the framework, and certainly aren't a viable
substitute for a model class in anything but the simplest
applications. Similarly, AppKit views don't suit the needs of all
applications either - they're certainly useful, but most
applications will need at least one subclassed or custom view
somewhere.
I would definitely like to see some more support for custom views.
Especially since Apple is changing their look with every other
release or so. Instead of having to make new buttons in Photoshop (to
match Apple's style) it would be nice to be able to draw pieces of
controls into a custom view (e.g. a beveled edge, or the pill shape
for Mail's toolbar buttons (not that they should be emulated... but
you get the point)).
Claiming that controllers can be prepackaged in a similar fashion
is just silly. In most applications, the controllers are where much
of your application's unique logic will live. These can't be
written for you! _______________________________________________
What about Bindings with NSObjectController, NSArrayController, etc... ?
Thanks,
Jon_______________________________________________
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