V incent, THat's part of the point. Custom class B is not a class which is linked into IB via a palette or anything else so it is one which is defined in source code.. NSClassSwapper's job is to swap out the class which is linked in (i.e. one which is known) with a class which the user has defined in his or her project.
On Mon, Jul 1, 2013 at 9:13 AM, Vincent R. <[email protected]> wrote: > Le 01.07.2013 10:57, Luboš Doležel a écrit : > > On Wed, 26 Jun 2013 01:35:17 -0400, Gregory Casamento wrote: >> >>> Lubos, >>> >>> I'm not sure why you're saying it should only be used for looking up >>> the name. What leads you to the conclusion that this is all it's >>> used for. When I wrote it I did many backtraces to determine how it >>> worked. >>> >>> If you have known object A and custom class B. "Known" classes are >>> classes which IB knows about (e.g. Cocoa classes) and can >>> archive. A is what is actually archived in the .nib file because >>> that is what Interface Builder can instantiate and save, but in the >>> data structures which are saved in the nib, there is a map which >>> indicates that object A should be replace by an instance of custom >>> class B. The way this is indicated by the user is when you select >>> the custom class in the class inspector in IB. >>> >>> NSClassSwapper is certainly doing what it is supposed to be doing in >>> this case. The only fault, I believe is what Fred pointed out in an >>> earlier email. The cell contents and settings are not being copied >>> and, perhaps, they should be. >>> >>> Anyway, just adding my 0.02 to the conversation. >>> >>> GC >>> >> >> Hi, >> >> in your example, I'd assume that custom class B is a subclass of A. >> Meaning an instance of B can be fully treated as an instance of A. >> So why not instantiate and unarchive it as class B from the start? >> >> I'm not implying there's anything wrong here, I just don't understand >> why it works like that. >> > > Are you sure that from the "interface builder" you have access to the > Custom Class B ? > How could it be instantiated ? Let's say the code is not compiled, how can > you instantiate > something just from its source code ? I am asking but I am not an expert > in this domain... > > > ______________________________**_________________ > Gnustep-dev mailing list > [email protected] > https://lists.gnu.org/mailman/**listinfo/gnustep-dev<https://lists.gnu.org/mailman/listinfo/gnustep-dev> > -- Gregory Casamento Open Logic Corporation, Principal Consultant yahoo/skype: greg_casamento, aol: gjcasa (240)274-9630 (Cell) http://www.gnustep.org http://heronsperch.blogspot.com
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