Canvas scrollbars / rulers too wide in gtk3 builds

[Kale Kundert]

I just upgraded to inkscape 0.92 in Fedora 26. As shown in the attached screenshot, the scrollbar troughs are about 5x wider than the actual scrollbars. I think this might be because the "Zoom drawing if window size changes" button (pressed in the screenshot) is taking an extra ~10 px around the actual icon.

I can't find any mention of anyone else having a similar problem, so maybe this is somehow related to my setup. But I just installed this operating system, and I can't fathom what sort of configuration option would mess up the scrollbar widths.

[Patrick Storz (ede123)]

Confirmed on Windows 10 with Adwaita gtk3 theme. This should be addressed for 0.93 as it's a highly visible part of the UI.

[Patrick Storz (ede123)]

I fixed the width "a little" in
https://gitlab.com/inkscape/inkscape/commit/8a097e957fac49ee3a34b26776d1b7738a11a308

Citing from this commit:

The underlying issue are the three icons that are squished into the
corners of scrollbars/rulers:
- in gtk2 they where shrunk down till they fit into the available
  space (which probably wasn't a great solution either)
- in gtk3 they blow up the container till it fits

A proper fix would probably be to either
a) moving those buttons elsewhere or
b) specifically design small buttons/icons for this purpose

[Patrick Storz (ede123)]

Changing title to point out this also affects rulers.