Re: [Rubycocoa-talk] Forcing a trip through the event loop?

[Jonathan P. <jp...@dc...>]

On 11 Feb 2006, at 9:20, Jonathan Paisley wrote:

> Passing a plain Ruby doesn't work because it gets a new (and  
> therefore unique) ObjC wrapper object each time it gets passed to  
> Cocoa-land. I'm not 100% sure about this -- will investigate.

The problem described above is an issue. However, even if it were  
modified it doesn't really help[*].

Make your model objects - Project in your example - subclasses of  
NSObject and pass them directly as items to NSOutlineView. If you  
don't like having to do the 'alloc.init' dance, you can make a wrapper:

class Project < OSX::NSObject
   def self.new(*args)
     self.alloc.init(*args)
   end

   ...
end


[*] NSOutlineView doesn't retain items, so the persistent objc  
wrapper for the ruby object gets released but is still referenced by  
NSOutlineView - boom