FIX: Update macosx animation handling #22175
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- Emit a resize_event signal when the pixel ratio is updated. This enables an animation to move between hidpi and standard dpi screens without ruining the blitting. - Init the draw in the animation. This is only necessary for macosx because an initial resize isn't emitted upon figure manager creation, versus the other backends where it is. This would cause the first frame to be stale on the macosx animations when used with blitting.
QuLogic
approved these changes
Jan 25, 2022
|
Pinging for another mac review if someone wants to test it out and push it through. |
tacaswell
approved these changes
Mar 4, 2022
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PR Summary
Emit a resize_event signal when the pixel ratio is updated. This
enables an animation to move between hidpi and standard dpi screens
without ruining the blitting.
Init the draw in the animation. This is only necessary for macosx
because an initial resize isn't emitted upon figure manager creation,
versus the other backends where it is. This would cause the first frame
to be stale on the macosx animations when used with blitting.
Closes #18451
This is the example I was testing with that kept the first frame previously, but now updates as expected like the other backends.
https://matplotlib.org/stable/gallery/animation/simple_anim.html
I'm not sure if there is a simple test for these updates as they are interactive-based primarily. Happy to add one if someone has a good idea for how to verify this without seeing it.
PR Checklist
Tests and Styling
pytestpasses).flake8-docstringsand runflake8 --docstring-convention=all).Documentation
doc/users/next_whats_new/(follow instructions in README.rst there).doc/api/next_api_changes/(follow instructions in README.rst there).