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Fix an OverflowError during rapid kinetic scrolling #47

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Fix an OverflowError during rapid kinetic scrolling #47

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@bmjcode bmjcode commented Dec 23, 2025

This is caused by PyQt not enforcing C++ integer size restrictions on QPoint coordinates, which we correct for by implementing our own overflow-safe Point type.

Fixes frescobaldi/frescobaldi#2130.

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Fix an OverflowError during rapid kinetic scrolling
7df61f1 
This is caused by PyQt not enforcing C++ integer size restrictions on
QPoint coordinates, which we correct for by implementing our own
overflow-safe Point type.

Fixes frescobaldi/frescobaldi#2130.
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bmjcode commented Dec 23, 2025

Note I deliberately limited changes to scrollarea.py because that's where overflows have been reported to occur. I left other instances of QPoint alone for now to avoid potentially breaking things I'm not certain how to test.

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OverflowError: argument 2 overflowed: value must be in the range -2147483648 to 2147483647

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