Headphones icon in the preview column on the first row doesn't change position

[David Chocholatý]

If the width of the preview column with a headphones icon is changed, the first row headphones icon position is static on previous position and the position is changed after the mouse button is released. It doesn't matter if it's playlist, crate or tracks preview column. The whole situation is captured in the attached video.

Mixxx version: 2.3.2
OS: Windows 10 Education (OS build 19042.1586)

[ronso0 (ronso0)]

Works perfectly on Xubuntu 20.04 with 2.3 and main branch, both built with Qt 5.12.8.

[Daniel Schürmann (daschuer)]

I can confirm the issue on Windows 10.
Only the last hoovered box is affected.

[Daniel Schürmann (daschuer)]

Got it:
https://github.com/mixxxdj/mixxx/blob/f2d670edeb483efb066bf7f00255d01df2f0017c/src/library/previewbuttondelegate.cpp#L184

It happens when the mouse leaves the table from a hovered cell.
In this case we do not receive a cellEntered event from another cell that disables the Button overlay.

I have found this post with a suggested workaround:
https://www.qtcentre.org/threads/26044-QAbstractItemView-entered-signal-where-is-QAbstractItemView-left-signal

Now I can also confirm it on somehow on Ubuntu.
If I leave the cell over the left table border, during resizing the cell is painted delayed. When I leave the cell crossing other cells it paints normally.

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/10710