Quoting Jeannette Gorrin <[EMAIL PROTECTED]>: > Hi everybody: > > I'm using Gorm. In my application it's necesary to > instantiate NSDocumentController class. In the Classes > Menu, the Instantiate option is unsensitive, i can't > click it and i'm selecting NSDocumentController > classes in the dialog, is there any reason that i > don't know?
Hi Jeanette. Under normal circumstances you don't have to *instantiate* an NSDocumentController. See http://developer.apple.com/documentation/Cocoa/Conceptual/Documents/Concepts/OverviewDocArchitecture.html#//apple_ref/doc/uid/20000023 for the class-diagram of document-based apps. Looking at the diagram in Apple's docs you'll see that when modelling some interface in Gorm you are doing stuff from the 'Window' side. The NSDocumentController, however, lives on the other side of the diagram, so you're doing it the wrong way around. If, for whatever reason, you need to instantiate an NSDocumentController *manually* in your app (please note that in the common case of document-based apps the AppKit framework does this for you automagically) you should do it in Objective-C code, not using Gorm. However, I guess what you actually want to do is model some interface for your document window. Is that it? In case it is you don't need to instantiate anything manually. Instead set the NSOwner object in the 'Objects' tab to of the correct class that will load the gorm file (either NSDocument or NSWindowController or (more precisely) actually some subclass of them you create. See http://developer.apple.com/documentation/Cocoa/Conceptual/Documents/index.html for a detailed description of what you can and should do in document-based apps. > I also realise that it happens to some classes in the > dialog. > > Thanks in advance... > Jeannette. > > P.S: i attached class menu.. Yes, Gorm doesn't allow you to instantiate stuff that's not logical to create by instantiation, such as NSWindow (if you want a window, drag it from the 'Palettes' panel) or a general NSView (if you want a custom view drag a 'Custom View' from the Palette and put it in the window you where you want it to be). It does, however, allow you to do so with non-graphical objects (such as an NSDocument, or a custom subclass of NSObject, or perhaps an NSDictionary), because non graphical stuff is created by instantiation, not by dragging it from the Palette. Sorry if I underestimated your knowledge in this post, I didn't mean to insult you. I just want to make sure we understand each other. ;-) Cheers -- Saso _______________________________________________ Help-gnustep mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnustep
