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Make PyFT2Font a subclass of FT2Font#30324
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This factor existed only to preserve test images, but as ofmatplotlib#29816, itis set to 0 (i.e., disabled and providing default behaviour). In thefuture, with libraqm, it will have no effect no matter its setting(because we won't be applying kerning ourselves at all.)
This makes it easier to do later refactors.
The goal here is to avoid having to this whole |
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Documentation: user guidefiles in galleries/users_explain or doc/users status: waiting for other PRtopic: rcparamstopic: text/fonts
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PR summary
This avoids a level of indirection, and also means that a
FT2Fontis aPyFT2Font(since there are no other subclasses), which helps with some future work. The only downside is that the constructor/destructor order is fixed and slightly different, so we need to split the open/close stages for theFT_Faceand explicitly call them inPyFT2Font.There are currentlystill two copies of the fallback list, one on each level. The one on
FT2Fontis what's actually used, but the one onPyFT2Fontis the actual owner (because pybind11 owns the objects, so we need a Python object to own them). I think it may be possible to drop that extra copy by switching tostd::shared_ptr, but that will likely require the smart holders that are new in pybind11 v3, and I haven't fully tested that out yet.This PR is based on/waiting for#30322.
PR checklist