[Qt-interest] Hiding QTreeWidget heirarchy

[Santhosh Y]

Sean Harmer wrote:
> Hi,
>
> On Tuesday 02 Jun 2009 12:59:45 Santhosh Y wrote:
>   
>> Santhosh Y wrote:
>>     
>>> Hi,
>>>
>>> By default QTreeWidget shows a QTreeWidgetItem children with hierarchy
>>> levels. Please see the attached image.
>>> Can I hide this.
>>>
>>> Any help is appreciated.
>>>       
> The branch lines are drawn by the current style. Check out the screen shots in 
> the documentation for QTreeView (from which QTreeWidget is derived). So one 
> option is to use a style that simply does nothing when asked to draw this type 
> of primitive. That is you could derive a new style from your currently used 
> widget style and override the drawing of that one primitive or simply find 
> another widget style that already does this. The call is made on line 1739 of 
> qtreeview.cpp (in the Qt 4.5.1 source).
>
> Another option is to derive a new class from QTreeWidget (and hence QtreeView) 
> and override the drawBranches() function where the above call is made so that 
> is doesn't ask for that primitive to be drawn ever no matter what widget style 
> the user has selected to use.
>
> Which option you go for depends on how much you as the app developer think you 
> know better than your users as to what they want to see. I would be tempted to 
> do nothing and just let the user choose a style that draws the branch lines as 
> they prefer.
>
> HTH,
>
> Sean
>   
Thanks a lot. I was exactly looking for this.

I have over ridden drawBranches() funciton  over MyTreeWidget. Now it is 
not drawing the branch structure.

But I dont know the side effects of it.
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>   


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Y Santhosh Kumar
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