[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] x11: emit mouse wheel events, drop the ctrl+arrow workaround (#303)

[Tom Beckmann]

These changes fixed the horizontal scrolling issues for me. Cursory testing revealed no unintended sideeffects, but more testing should be done. I did not find an easy way to test if horizontal scrolling works as intended, plainly logging the events looks good, however.

No image-side changes were necessary, so I would claim that the VMs for the other platforms can continue to work as normal, even with this change just on x11.

Using the workaround to mark a scroll event by detecting all modifiers being pressed down instead, will require an image-side change though.
You can view, comment on, or merge this pull request online at:

  https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/303

-- Commit Summary --

  * x11: emit mouse wheel events, drop the ctrl+arrow workaround

-- File Changes --

    M platforms/unix/vm-display-X11/sqUnixX11.c (23)
    M platforms/unix/vm/sqUnixEvent.c (12)

-- Patch Links --

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/303.patch
https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/303.diff

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