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use DeviceEvent::MouseMotion to get mouse delta when mouse go out of screen. #1611

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enomado opened this issue May 9, 2022 · 0 comments · Fixed by #4063
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use DeviceEvent::MouseMotion to get mouse delta when mouse go out of screen. #1611

enomado opened this issue May 9, 2022 · 0 comments · Fixed by #4063
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@enomado
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enomado commented May 9, 2022

This could enhance DragValue UX when mouse stuck in screen rect.

For example this http://idflood.github.io/draggable-number.js/ can increment number when mouse is out of screen, So I guesst browsers delta works the same way.

eframe/src/native/run.rs:206
@enomado enomado added the bug Something is broken label May 9, 2022
@enomado enomado mentioned this issue May 10, 2022
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@GiantBlargg GiantBlargg mentioned this issue Feb 17, 2024
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emilk pushed a commit that referenced this issue Feb 20, 2024
@GiantBlargg
Add API for raw mouse motion (#4063)
b804857 
Raw mouse movement is unaccelerated and unclamped by screen boundaries,
and does not relate to any position on the screen.
It is useful in certain situations such as draggable values and 3D
cameras, where screen position does not matter.


https://github.com/emilk/egui/assets/1700581/1400e6a6-0573-41b9-99a1-a9cd305aa1a3

Added `Event::MouseMoved` for integrations to supply raw mouse movement.
Added `Response:drag_motion` to get the raw mouse movement, but will
fall back to delta in case the integration does not supply it.

Nothing should be breaking, but third-party integrations that can send
`Event::MouseMoved` should be updated to do so.

Based on #1614 but updated to the current version, and with better
fallback behaviour.

* Closes #1611
* Supersedes #1614
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Add API for raw mouse motion GiantBlargg/egui
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