> On Mon, 2009/07/27, Graham Cox <graham....@bigpond.com> wrote:
> From: Graham Cox <graham....@bigpond.com>
> Subject: Re: Document-Based Application
> To: "David Blanton" <aired...@tularosa.net>
> Cc: "cocoa-dev" <cocoa-dev@lists.apple.com>
> Date: Monday, 2009 July 27, 00:10
>> On 2009/07/27, at 2:09 PM, Quincey Morris wrote:
>>> On 2009 Jul 26, at 20:39, David Blanton wrote:
>>> I have 22 file types, each with its own C++
>>> methods for extracting its data.
>>>
>>> Now, I could use just one subclass of NSDocument
or you could have 22 classes, and use setDelegate
in your NSDocument sub-class to control which one
gets used for each file.
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