Description of problem

In the "Trade > Curve" view, the mouse wheel only zooms in one direction. It always zooms as if clicking on the <-> icon (zooms always out, never zooms in).

User Impact

It's impossible to use the wheel effectively in order to change the zoom factor. User has to resort to clickin on the <-> and <+> icons or use the -/= keys.

Steps to reproduce

Open up "Trade > Curve" view.
Scroll the mouse wheel up.
Scroll the mouse wheel down. Note how you can't zoom back.

Expected Behavior

Scrolling the wheel up and then down should revert the zoom level. Scrolling down should zoom out. Scrolling up should zoom in. (Or the other way around if you prefer it that way.)

Probable Cause

This is likely due to a missing sign in the callback handler for the wheel. Most likely you guys aren't using the feature much - T&T are "clickers" as far as I can tell - and haven't noticed. (This would be a typical bug caused by a feature quickly put together.)

Suggested improvements

N/A

Attachments

N/A

Platform Details

TW version: 1.14.2
OS: Linux PopOS! (System76 derivatives of Ubuntu 20.10)
Java: Zulu11
lumia:~$ java -version
openjdk version "11.0.11" 2021-04-20 LTS
OpenJDK Runtime Environment Zulu11.48+21-CA (build 11.0.11+9-LTS)
OpenJDK 64-Bit Server VM Zulu11.48+21-CA (build 11.0.11+9-LTS, mixed mode)

I hope this helps. Thank you!

blais commented 3 years ago

Resolution 2021-05-03 Thank you for reaching out. This behavior is is a know issue, and is specific to Linux. We do not have an estimated time frame for when this will be resolved, but the team is working consistently to resolve issues and roll out improvements to our trading platforms.