Created attachment 861714 [details]
Patch diff

macrofusion.py does not show a preview of a merge HDR image any more.

(I repaired macrofusion before in Bug
https://bugzilla.opensuse.org/show_bug.cgi?id=1186902
Developer was aloisio@gmx.com)

Workaround:
If you process two times and toggle between them they are shown.

Fix:
Some APIs of Python3 and GTK3 have changed.
I don't know Python or GTK3, but I followed the proposed fixes in the warnings
on the console and it works again.

I've attached a diff patch.

TODO:
- pyramid level is 9 by default, but warning says my sample image can only
process 8 levels !?
- Effect of the check boxes are inverted. Check on "align" does not align any
more. I like this default but this feature is really a bug.
- there are some warnings when selecting files or saving, but it works.
- if I learn enough Python I would like to code a better default file name to
save. This should be the current folder and the first file name with "_HDR"
inserted before the ".jpg" ending.