[Development] QTreeView: vertical bar between columns

[Laszlo Papp]

>
> Hi László,
>
> Knee-jerk reaction is that I’m sceptical that this belongs into QTreeView
> itself, given how hard it is to make this look good for all the different
> styles, and how easy it evidently is to do this in a subclass that can
> solve a specific problem and doesn’t have to worry about making this look
> right with every style.
>
> Not to speak about being testing yet another property in combination with
> all other properties, which makes the number of visual tests we have to
> have for this grow exponentially.
>
> At the very least, start with writing up a suggestion as a JIRA ticket so
> that we can see if anyone votes for this to be part of upstream Qt and so
> that we can discuss what this should look like with different styles, style
> sheets, scale factors etc.
>
> Volker
>

For the record:

https://codereview.qt-project.org/c/qt/qtbase/+/411663
https://bugreports.qt.io/browse/QTBUG-103535
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