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Nice Tree Effect

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Submitted by Herzi on Tue, 19.12.2006 18:36
in

Did you ever wonder why applications like nautilus display a node called »(empty)« in the tree? I didn't. There are several reasons that could be brought up here, but in my opinion the Windows Explorer just got it right:

  1. if you don't know, display an expander
  2. if you look at it and it's empty, just remove the expander

So I tried to implement this behaviour in GQ. It wasn't very easy, but it works. As I wrote last week, I suspected a bug in that code, so I developed a small test case to play with that feature. If you're interested in it for your application, take my example and build your own tree model.

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