Float/int argument mismatch in wxPython calls

[pchemguy]

Envirnoment:

Windows 10
Python 3.10.6 / Anaconda
Most libraries are installed from conda-forge, some, including wxPython, from PyPi.

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Python 3.10 no longer does automatic float to int conversion where necessary. wxPython functions usually expect pixel coordinates as integers and fail if floats are supplied. I have spotted a few places during source startup. See details in the associated pull request.