On 11/06/2009, at 18:41 , Jo Meder wrote:
It would be great to be able to do this for NSViews but I haven't
been able to find any equivalent. Are there any ingenious ways that
you might be aware of so I could bolt this on to NSView?
I have yet to find a good solution to this.
It would be fantastic if NSView had an NSDictionary field and
Interface Builder let you set values in the dictionary. Given the
pain of writing Interface Builder plugins, this would be a much easier
solution to a bunch of problems where you want a custom view to have
some configuration.
The only vaguely approximate thing is the tag field in NSControl,
which you can subvert for some purposes, but it is very limited.
I'm trying to avoid setting up a map from NSViews to UI framework
objects, but I suspect it will be inevitable. Not really a big deal,
but less hassle to be able to associate the data directly so that
would be a preferable solution.
The only alternative I could see would be to create a global
NSDictionary mapping NSView* to UI framework objects, use message
swizzling on NSView to swap out its init and dealloc methods, and add
a category on NSView to access the UI framework objects via the global
dictionary. Slightly ugly to write and then trivial to use. You
probably don't need to swizzle the init methods, just create the
global dictionary entry on demand as necessary, but you do need to
swizzle the dealloc method to know when to get rid of the entry.
Enjoy,
Peter.
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