Scale wheel event value according to whether they're lines or pixels

[rivertam]

When using this with bevy in the browser, this previously would give some whacky behavior with the scroll wheel. Previously, this library was just using event.y, which was 53 on my machine. When I ran with a desktop backend, it was using Line, so it was just feeding back 1, so I assume that's what you were testing with because that looked fine.

[bonsairobo]

What is a "line" in this context? MouseScrollUnit doesn't have docs.

[rivertam]

I think it's a click of the scroll wheel, maybe corresponding to a line of text (like a line of code, sort of like pressing the up or down arrow key). I don't think I was able to make it do more than one, and I don't happen to have any other mice to test it with, so the only difference I've noticed for myself is "it's Pixels/53 in my browser and Lines/1 on native" (and it scrolls way too fast in the browser).

The answer is likely in the source code of winit.