Mouse wheel delta

[immortalx74]

There seems to be a mouse wheel delta issue with specific mice. I described the problem in imgui's issues here: url

[eliasdaler]

Please write a test program which catches sf::Event::MouseWheelMoved and writes event.mouseWheel.delta to console. What values do you get when you rotate the mouse?

[eliasdaler]

Ah, I see that it has been deprecated in SFML 2.5.
Try out this event: sf::Event::MouseWheelScrollEvent and see what values event.mouseWheelScroll.delta outputs.

See this

[immortalx74]

Thanks for looking in to this. When I move the wheel slowly (in which case it actually doesn't scroll at all) I get this output:
wheel type: vertical wheel movement: 0.75 mouse x: 464 mouse y: 265 wheel type: vertical wheel movement: -0.5 mouse x: 464 mouse y: 265 wheel type: vertical wheel movement: -0.25 mouse x: 464 mouse y: 265 wheel type: vertical wheel movement: -0.25 mouse x: 464 mouse y: 265 wheel type: vertical wheel movement: -0.25 mouse x: 464 mouse y: 265 wheel type: vertical wheel movement: -0.25 mouse x: 464 mouse y: 265

And when I move it fast (which is when it actually scrolls) I get this:
wheel type: vertical wheel movement: -1 mouse x: 379 mouse y: 321 wheel type: vertical wheel movement: -1 mouse x: 379 mouse y: 321 wheel type: vertical wheel movement: -1.5 mouse x: 379 mouse y: 321 wheel type: vertical wheel movement: -1.75 mouse x: 378 mouse y: 320 wheel type: vertical wheel movement: -1 mouse x: 374 mouse y: 311 wheel type: vertical wheel movement: -1 mouse x: 370 mouse y: 302 wheel type: vertical wheel movement: -0.75 mouse x: 368 mouse y: 299 wheel type: vertical wheel movement: -1 mouse x: 368 mouse y: 296

[eliasdaler]

Okay.
Can you try out this branch, please?
https://github.com/eliasdaler/imgui-sfml/tree/mouse-scroll-fix

[immortalx74]

That works perfectly! Thank you very much for taking the time to do it!

[eliasdaler]

Nice. I'll merge it into master and release 2.0.2 later today. :)