Re: Subclassed NSTextField can't bind backgroundColor to NSCollectionViewItem

FROM : David Carlisle
DATE : Sat Dec 01 20:16:25 2007

Just override the bind method in the NSTextField subclass.  Then when 
it is called to bind to "value", add a binding to "backgroundColor."

On Dec 1, 2007, at 2:19 AM, David Carlisle wrote:

> I'm trying to simulate an NSTableView using an NSCollectionView 
> because [[(NSTableView *)tv animator] reloadData] won't work.  I 
> thought it would be more likely I could animate an 
> NSCollectionView.  I have at least one NSTextField in my 
> CollectionViewItem NSView where I want to be able to control the 
> background color.
>
> Since the text of the NSTextField is bound in Interface Builder to 
> the NSCollectionViewItem, I thought that to bind to the 
> backgroundColor in my NSTextField subclass, I could put the 
> following method in its initWithCoder method.  The "cvi" variable is 
> an IBOutlet connected in IB to the NSCollectionViewItem.
>
> [self bind: @"backgroundColor"
>       toObject:cvi
>  withKeyPath:@"representedObject.backgroundColor"
>       options:nil];
>
> The problem is that when NSTextField initWithCoder is called, cvi is 
> nil.
>
> Is there a workable approach? And is there a good reason why 
> backgroundColor shouldn't be bindable in Interface Builder?
>
>
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