def __msgActionWarning(self, newAction: QAction, actionId: ItemId, oldAction: QAction or None):
"""
:returns: a Warning text with the given Action's and ItemId's properties
:param newAction: Action to take strings from
:param actionId: ItemId to take strings from
"""
oldActionMsg = " {}/{}".format(oldAction.objectName(), oldAction.text()) if oldAction else ""
msg = "addOverrideAction {}/{}: Action{} is already registered for context {} {}.".format(
newAction.objectName(), newAction.text(), oldActionMsg, actionId.uniqueIdentifier, actionId.toSetting())
return msg
