Re: Memory management with nibs

FROM : Dirk van Oosterbosch
DATE : Thu Apr 21 13:49:57 2005

Hi Julien,

AFAIK the standard way to deal with multiple types of documents and 
multiple different UI's is to make multiple different subclasses of 
NSDocument.
These then are set in the corresponding nib to be the File's Owner, you 
override - (NSString *)windowNibName to return the appropriate nibname 
and you change the NSDocumentClass keys in your Info.plist so the 
NSDocumentController knows which NSDocument subclass to use to open 
your files with.

or review the documentation again
http://developer.apple.com/documentation/Cocoa/Conceptual/Documents/
index.html?http://developer.apple.com/documentation/Cocoa/Conceptual/
Documents/Tasks/SubclassNSDocument.html


I believe then everything is managed for you and you don't have to 
concern about releasing of the nib's

HTH

Best,
dirk


On 21-apr-05, at 11:05, Julien Palmas wrote:

> I have a document based app with only one window per document.
>
> This application can open a large variety of different documents, so I 
> decided to create several nib files, each containing the corresponding 
> view for the document.
>
> When opening the document, I check its kind and load the according 
> nib. This helps reduce the application footprint and the load time, as 
> I don't open all the nibs ...
>
> Still, This is my first document based app and I have issues about the 
> files owner. For each different nib, I created a subclass of NSObject 
> and set it as the file owner when I load the nib with [NSBundle 
> loadNibNamed:] This owner has several IBOultets, but not for every 
> single element in the nib.
>
> The thing is that when I release the owner, I don't think the nib is 
> released as well, as my nib owner is not a sub-class of 
> NSWindowController. But as I only have one window (that already has 
> its NSWindowController), I didn't wanted to use a sub-class of 
> NSWindowController for the nib owner.
>
> How could I do to make sure my nib is released ?
>
> Some "good-coding" advices would be greatly appreciated.
>
> Julien
>
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