Follow PyQt6 API changes in diverging-mode editor

[dnadlinger]

As per the title – it appears the diverging-mode-specific code hasn't been tested since moving to PyQt6 by default.

[dnadlinger]

This could also be boundingRect(…).width().

[mfisher87]

Woops! That was probably my fault :) Thanks for the PR! I'll try and find time to review soon, but ... yeesh. I don't want to promise it'll be quick right now 😬

[dnadlinger]

Thanks!

I'll note that it should be fairly straightforward to review, as it only adds the explicit enum types, like already done in the other places.

(No rush – I'm aware that the last commit to main was almost three years ago – but since I'm reviving the tool for my own needs anyway, incl. some fixes to diverging mode and a port to colour-science for broader colour space support, it seemed a shame not to share my fixes.)

[mfisher87]

(No rush – I'm aware that the last commit to main was almost three years ago – but since I'm reviving the tool for my own needs anyway, incl. some fixes to diverging mode and a port to colour-science for broader colour space support, it seemed a shame not to share my fixes.)

Whoa, time really flies! That's the exact situation I was in 3 years ago. It doesn't feel like it was 3 years ago though! I was giving a workshop and needed viscm as a visual/exploratory aide for talking about perceptual uniformity. Thanks so much for continuing the cycle and sharing the fixes back :)