When a tab was moved by dragging, the tab's rectangle was drawn empty,
without the tab text. When a tab was moved by animated snap back to
its original position, the tab text was already drawn on the original
position, while the rectangle was still moving due to animation.
Adds the enum value QStyleOptionTab::TabPosition::Moving
When this option is set, QCommonStyle draws the tab text at the
current position instead of the original home position of the tab.
The QMacStyle switches over the TabPosition enum. As a moving tab
is laid out like the last tab in the given orientation, the enum value
Moving is treated like End.
Fixes: QTBUG-112277
Change-Id: I42a2d9c269dadfe9819c12dbc69e3ae995a45b09
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
d4b40fa96b