Copied from my post on Arch Linux bugs:
With gpicview, I open an image with a higher resolution than the gpicview window's. I click the button to view it at 100%. I can't scroll the image to view the bottom of it (or the right edge if it's wider than the window): when I use the mouse wheel or drag the scroll bar, the image immediately jumps back up to the top (or left) (even though the scroll bar shows it's showing the bottom (or right)). With a PNG that has a transparent background, the image smears when I drag the scroll bars.
I reinstalled gpicview-0.2.1 and no longer had this problem.
Arch Linux bug report: https://bugs.archlinux.org/task/25544
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attempting to scroll a PNG with a transparent background
This has been reported in Debian too : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637713
As I commented in the bug report there, this is due to the change in aba809cf57681285888f1500658823adffc6df14: "Fix compilation for GTK3 for image-view.c", but I'm not sure what a proper fix will be, though.
I recognized when the image isn't at 100% but something like 95% then scrolling works as expected.
I confirm this bug on Opensuse 11.4 all up-to-date.
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This issue is still present in 0.2.3.
Cannot reproduce with current version 0.2.6.
So its probably fixed.
Last edit: Flavius 2019-09-04