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Re: automatic refreshing

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  To: comp.lang.java.gui
Qu0ll wrote:
> "Brandon McCombs" <none@none.com> wrote in message 
> news:464a7cdf$0$502$4c368faf@roadrunner.com...
>> Hello,
>>
>> I'm having a hell of a time trying to get a JTree to automatically 
>> refresh to show that a node has been moved from one parent node to 
>> another.
>>
>> I'm using the following statement to move the node to the new parent:
>>     model.getTreeModel().insertNodeInto(movedNode,
>> newParent,newParent.getChildCount());
>>
>> I'm trying to implement cut/copy/paste functionality and I'm working 
>> to get cut/paste functionality working first so in my paste method I 
>> test for the original operation. If it was a "cut" then I do the 
>> following:
>>     model.getTreeModel().removeNodeFromParent(movedNode);
>>
>> However both of the statements above do not make the tree refresh 
>> automatically to show the changes. I thought using the above were 
>> supposed to do that?  I tried the reload() method of the tree model 
>> and of course when I do that the entire tree collapses and that isn't 
>> what I want (I have a feeling hardly anyone finds that "feature" of 
>> the reload() method useful).
>>
>> Is reloading the tree the only way to make the change in the node's 
>> location visible in the tree? If so, what the hell is the point of 
>> those particular methods when I could just do, for an insertion, 
>> newParent.add(movedNode) instead?
> 
> 
> Are you notifying the tree that a new node has been inserted or removed?
> 

I forgot to mention that my tree model is in fact the DefaultTreeModel 
so that's why I thought the notifications should happen automatically as 
long as I used the methods above.

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automatic refreshing of J "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
  Re: automatic refreshing "Qu0ll" <qu0ll@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
    Re: automatic refreshing "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
    Re: automatic refreshing "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
      Re: automatic refreshing "Qu0ll" <qu0ll@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
        Re: automatic refreshing "Brandon McCombs" <brandon.mccombs@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
  Re: automatic refreshing "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000

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