Re: re-factoring a category into a class instance
Re: re-factoring a category into a class instance
- Subject: Re: re-factoring a category into a class instance
- From: Brian Stern <email@hidden>
- Date: Tue, 10 Jun 2008 18:04:09 -0400
On Jun 10, 2008, at 5:05 PM, Paul Archibald wrote:
Comrades:
I am working on a file-handling Cocoa app that (at this point) has a
single window. We are adding a second window (really sort of a non-
modal dialog) to do some extra processing of the target files. The
interface for the new window is already built (with IB), but is not
hooked up yet.
So, the way this started was as a AppController(ExtraCategory)
thing, with the NIB file having a single controller object. I don't
like that method, because there is a lot of data and code that would
need to be replicated in the main AppController to handle the work
that the ExtraCategory does. What I would like to do is put all the
ExtraCategory stuff into its own class, but I am not sure how. My
inclination is toward making the ExtraCategory into a
NSWindowResponder, but the documentation I have read so far makes it
look like that is more intended for document-based apps, which this
is not. Also, I don't quite see (looking at some example code) how
an extra controller is instantiated by the main app controller.
Since there's no such thing as NSWindowResponder I assume what you
meant was NSWindowController. And that's what you should use.
There's no limitation of NSWindowController being only available or
useful in document based apps.
You can instantiate it in the nib with IB or in code. I usually
instantiate it in code and have it load the nib and be the file's owner.
@implementation MyWinController
- (id)initWithWhatever:(whatever*)whatever
{
self = [super initWithWindowNibName:kMyWindowNibName];
if (self) {
// Add your subclass-specific initialization here.
// If an error occurs here, send a [self release] message and
return nil.
}
return self;
}
// etc.
// instantiate it in your app controller something like this:
- (void)showMyWindow
{
if (! mMyWinController)
{
mMyWinController = [[MyWinController alloc]
initWithWhatever:whatever];
}
[mMyWinController showWindow:self];
}
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