Re: Multiple Document Types
Re: Multiple Document Types
- Subject: Re: Multiple Document Types
- From: mmalcolm crawford <email@hidden>
- Date: Sat, 29 Oct 2005 21:27:32 -0700
On Oct 29, 2005, at 9:07 PM, Thom McGrath wrote:
I'm trying to implement a three document type structure. This is a
sample of one of the methods used to create a document simply known
as "MyClass" in the example. This class is also the default, so in
essence, I'm trying to mimick the default behavior.
The result is a usable class. But no window appears for it. Why? I
would love to use the simpler openUntitled... methods, but those
have been depreciated. What simple step am I missing? It should be
noted that I do get a default window upon application launch, so my
window outlet *is* connected properly.
NSDocumentController *controller = [NSDocumentController
sharedDocumentController];
NSError *outError = nil;
MyClass *me = [controller makeUntitledDocumentOfType:@"MyClass"
error:&outError];
if (me != nil) {
[me showWindows];
[controller addDocument:paper];
} else {
NSAlert *alert = [NSAlert alertWithError:outError];
[alert runModal];
}
It's not entirely clear what you're doing here.
Is the code above in a method of a subclass of NSDocument?
There should be no need for this. An appropriate instance will be
created and opened automatically if you have set up the document
descriptions correctly in Xcode. If you need a means to create new
instances of specific classes, create a custom subclass of
NSDocumentController.
See <http://developer.apple.com/documentation/Cocoa/Conceptual/
Documents/Concepts/RolesOfDocObjects.html#//apple_ref/doc/uid/20000025>
<http://developer.apple.com/documentation/Cocoa/Conceptual/Documents/
Tasks/SubclassController.html#//apple_ref/doc/uid/20000953>
<http://developer.apple.com/documentation/Cocoa/Conceptual/Documents/
Concepts/DocTypePList.html#//apple_ref/doc/uid/20000024-BHADAGHF>
etc.
mmalc
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