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QT has a open bug regarding filling the contents of a QMenu in aboutShow:
https://bugreports.qt.io/browse/QTBUG-54421
This commit presents a work-around this bug.
The two step procedure of this commit, forces a recalculation of the size
from the slot and then manually moves the widget to the right position.
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The NotificationBox is extended to take the QRect in global coordinates. Then
it will try to dimension the label within this area. If a fixed width is provided, that
is enforced (take precedence).
The NotificationArea passes the QRect of the main window to the NotificationBox.
This is intended to fix:
https://github.com/FreeCAD/FreeCAD/issues/8940
======================
A notification area consisting of one area for non-intrusive notifications, and a widget showing previous
errors, warnings, critical messages and notifications.
Notifications being marked with QT_TRANSLATION_NOOP with context "Notifications" are translated.
Messages are shown during a minimum show time, unless pop up (clicked inside). Messages stay until
a maximum show time. Between the minimum and the maximum show times left mouse button events make
the non-intrusive notification disappear.
The widget stores a configurable amount of messages after which old messages are removed to make room for
new ones.
Unread messages are shown in bold.
