RFR: 8303038: Glass gtk3 sends scroll events with delta(x,y) = 0

[Glavo]

On Wed, 22 Feb 2023 10:56:01 GMT, Thiago Milczarek Sayao <tsayao at openjdk.org> wrote:

>> Are you sure this PR fixes this problem? 
>> 
>> I tested it and not only did it not fix the scroll up issue, the scroll down was broken too.
>
> @Glavo  I'm never sure :)
> 
> It fixed for me using your example with a laptop touchpad. 
> 
> Which device are you using?

@tsayao I think your latest submission seems to have reversed something.

Now I can scroll up and down, but the direction of the scroll wheel is opposite.

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PR: https://git.openjdk.org/jfx/pull/1044