With header QTreeView::mapToGlobal returns an unexpected value

[jronald]

Env

• OS: Linux
• Qt: 6.2.0

Problem

If QtreeView has no header, QTreeView::mapToGlobal returns the expected value.
If QtreeView has a header, QTreeView::mapToGlobal returns an unexpected value, if plus it with the height of the header, it'll be as expected.

More Info

Post with the same issue in 2011: https://forum.qt.io/topic/3747/qtreeview-maptoglobal-is-this-considered-a-bug

[eyllanesc]

@jronald try with: view.viewport()->mapToGlobal(...).

[jronald]

@eyllanesc said in With header QTreeView::mapToGlobal returns an unexpected value:

try with: view.viewport()->mapToGlobal(...).

It works, but why?

Thanks

[eyllanesc]

@jronald The positions of the mouseXEvent methods of the classes that inherit from QAbstractScrollArea such as QTreeView are relative to the viewport.