Right a bit more information. Having installed 5.4.4 last night on a Windows machine I noticed that canvas scrolling did not work as it had done using 5.4.1. I thought it was really slow but on further investigation it seems that the zooming only happens after scrolling the mouse wheel quite vigorously 3 times in quick succession. This works for zooming in and out and is consistently repeatable although it does seem to confuse itself occasionally. The scrolling has to be done in quick succession or zooming does not occur they also have to be big scrolls. Ctrl + zoom is the same. I find scroll zoom very useful and it would be good to have it sorted in 5.4.4 but I am afraid that is a bit beyond my meagre talents, sorry.
Nick From: Therion [mailto:therion-boun...@speleo.sk] On Behalf Of Bruce Mutton Sent: 17 July 2019 09:27 To: 'List for Therion users' <therion@speleo.sk> Subject: Re: [Therion] XtTherion canvas zoom with the mouse wheel bug I think this feature was implemented mid-2017, and it was about then that I raised the issue<https://www.mail-archive.com/therion@speleo.sk/msg06518.html> of a bug with canvas zooming and bitmap background images. There were a couple of commits<https://github.com/therion/therion/search?q=zoom&type=Commits> to resolve this 25 June 2018, and the effect for me since then has been is that mouse wheel zooming has been non-existent (although the code edits suggest something should happen on wheel rotation). So I am intrigued that you say it is working, even if very slowly. I seem to recall that the functionality was; Ctrl+mouse-wheel to zoom in and out the XTherion canvas. Currently version 5.4.4+bd62e22 does not respond at all to this control (and it does it quickly ie no hint that a redraw is being attempted or that there is an error condition). Same behaviour for all versions (on Windows 10) since 25 June 2018. So what am I missing? How does one activate the mouse wheel scrolling? It is a nice feature (so long as its not too slow as Nick has experienced). Bruce From: Therion <therion-boun...@speleo.sk<mailto:therion-boun...@speleo.sk>> On Behalf Of Nick Bairstow Sent: Wednesday, 17 July 2019 07:54 To: therion@speleo.sk<mailto:therion@speleo.sk> Subject: Re: [Therion] XtTherion canvas zoom with the mouse wheel bug 5.4.4 seems to have cured this very annoying issue (so hard not to scroll) but now with this latest release any scrolling is so ridiculously slow on my Windows machine, I'm going back to 5.4.1 which scrolled fine. I will dig out a none scroll wheel mouse for the few times I have to use a scanned image. Nick
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