On Mon, Nov 12, 2018 at 09:22:59PM +1300, Bruce Mutton via Therion wrote:
This bug has been around ever since mouse wheel zooming was introduced. An attempt was made to fix it I recall, but it did not have the desired effect. It manifests for bitmap background images, but not for xvi 'images'. A work around is to never roll the mouse wheel when working with th2 with bitmaps inserted. Very hard to do!.
There have been (at least) two changes that apparently fix bugs with zooming in xtherion using the mouse wheel since the last release: https://github.com/therion/therion/commit/82fc78e8931d36b215ab676754ede0cc54... https://github.com/therion/therion/commit/99d3347abaa96dde6ef3ba702a6040da65... It's been more than 18 months since the last release, and there are a significant number of changes (~150 commits ignoring merge commits) - perhaps it's time to make a new release? It would be useful to have one before the end of the year from a Debian perspective so we can get it into the next stable release. Cheers, Olly