YImage::setAutoScale seems not to work

[anaselli]

Here you can find a silly test case for YImage, change the png file with some you have in the system using the full path-name, and uncomment the line img->setAutoScale(true);
https://gist.github.com/anaselli/10959245

[ancorgs]

Since the Gtk backend is not developed or maintained by the YaST Team at SUSE, I'm adding the "other-maintainer" label to this in order to help filtering the various list of issues.