Simplify 3d axes callback setup. #15855
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I am a little uneasy about this change. How does the regular 2d axes object handle this stuff? I am also realizing that it was possible to accidentally connect multiple sets of the same callbacks through repeated calls, which is technically "fixed" by this.. |
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2d axes don't generate their own callbacks (they are completely ignorant of the callback system), they are set up by the canvas (more specifically, by the toolbar) and attached to the canvas object. |
6 tasks
QuLogic
approved these changes
Mar 9, 2020
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Please rebase so that Travis can run. |
Always setup the 3d mouse rotate/zoom callbacks and don't store their cids; instead, handle their disconnection by disabling all mouse buttons (which has the same observable effect). This is in preparation of restoring the pan/zoom callbacks upon unpickling: after a pickle/unpickle cycle, even if we restore the callbacks, we can't guarantee that the callback numeric ids will stay the same, and so self._cids would become incorrect.
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done |
timhoffm
approved these changes
Mar 9, 2020
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Always setup the 3d mouse rotate/zoom callbacks and don't store their
cids; instead, handle their disconnection by disabling all mouse buttons
(which has the same observable effect).
This is in preparation of restoring the pan/zoom callbacks upon
unpickling (#10843): after a pickle/unpickle cycle, even if we restore the
callbacks, we can't guarantee that the callback numeric ids will stay
the same, and so self._cids would become incorrect.
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