I recently discovered "QtWaitingSpinner":https://github.com/snowwlex/QtWaitingSpinner and just want to get the word out there that there is another progress spinner for use by Qt developers :)
I have been chatting to Alex (the original author) and we'd love to get some feedback and ideas for improvements so please have a look and let us know.
We've provided a comprehensive test app as a convenient entry point that also assists in the visualisation of different configurations so it is really straightforward to take it for a spin (no pun intended) :P
Thanks in anticipation,
I remember I've stumbled upon it a long time ago :)
Thanks for sharing :)