Re: Document App or not?
Re: Document App or not?
- Subject: Re: Document App or not?
- From: "M. Uli Kusterer" <email@hidden>
- Date: Mon, 9 Feb 2004 21:24:24 +0100
At 20:38 Uhr -0800 08.02.2004, Dustin Voss wrote:
I'm no expert, but the document framework has some pros and cons. On the con
Definitely true :-)
One thing I found out the hard way is that the document architecture
doesn't easily let you modify a saved file. Generally, it expects you
to read in the entire file, and to write it out in its entirety. So,
if your documents are actually databases where you don't want to load
the entire DB, you can't just save by changing the file you're
handed. Apparently, even when you've set the document not to *keep* a
backup copy, it still creates one. It merely deletes it again
afterwards.
While this is great to avoid loss of data for simple file formats,
it absolutely sucks for huge files of which you only want to
load/write out parts.
At least that goes for a run-of-the-mill NSDocument. Maybe it's easy
to subclass the critter at certain strategic points to get around the
intermediate files and I just haven't noticed them yet.
--
Cheers,
M. Uli Kusterer
------------------------------------------------------------
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de
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