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Re: Struggling with Swing

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  To: comp.lang.java.gui
Rogan Dawes wrote:
> Hi folks,
> 
> I am struggling to figure out what I am doing wrong in this TreeModel 
> implementation. It seems like certain nodes are not being rendered, even 
> though I can see that the (custom) renderer *is* actually being called 
> for all the rows. Which is just weird!
> 
> I am trying to show a JSON Object hierarchy in a JTree (actually a 
> SwingX JXTreeTable, which is where this first manifested).
> 
> The example shows a broken example, and a working example (if you 
> uncomment the code in main() at the bottom). As can be seen from the 
> println statements in the TreeCellRenderer, it *is* being called for 
> each row, but the row is not actually being rendered at all.
> 
> The obvious difference between the two examples is that the non-rendered 
> nodes now have a child, but I'd hope that that shouldn't make any real 
> difference!
> 
> Any ideas?
> 
> Rogan
> 

Gah!

Replying to myself! :-(

So, it turns out that the problem is in the TreePath code, since it 
doesn't use == for equality checks, but rather .equals().

Since the empty maps are equivalent, the TreePaths constructed are 
equals(). Which means that the JTree gets confused :-(

See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4257782

So much for that!

Rogan

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Struggling with Swingx Tr "Rogan Dawes" <rogan.dawes@THRWHITE.remove-dii-this> - 2011-04-27 15:41 +0000
  Re: Struggling with Swing "Rogan Dawes" <rogan.dawes@THRWHITE.remove-dii-this> - 2011-04-27 15:41 +0000

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