[Development] QTreeView: vertical bar between columns

Laszlo Papp lpapp at kde.org
Tue May 17 15:19:50 CEST 2022

> As mentioned in the JIRA ticket: perhaps a treeview, which is designed to
> show rows of data, not cells of data, is not the right UI component for the
> job, and the problem you try to solve seems very application specific (I’m
> not aware of a native tree view on macOS or Windows that provides a strong
> visual border between columns; ie macOS’s folder has a specific Column view
> mode for that). Override the delegate and make each cell stand out more if
> you want, or override the view’s paintEvent and render whatever you want
> after the view is done. I don’t think this belongs into QTreeView.

I appreciate your views and answers, but hope you allow me to mention that
when you say it is not "cells of data", I start thinking... Actually, a
QHeaderView is "cells of data".
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