Fix mirror axis handle viewport constraint
- Fix axis direction so initial handle position is back to top and left, same as in 4.4
- Scale the bounding viewport down by the devicePixelRatio so that it works on high-DPI
I suspect the first change is related to the change in 49b7a460.
Test Plan
Check horizontal/vertical mirror axis handle on high-DPI.
Formalities Checklist
-
I confirmed this builds. -
I confirmed Krita ran and the relevant functions work. -
I tested the relevant unit tests and can confirm they are not broken. (If not possible, don't hesitate to ask for help!) -
I made sure my commits build individually and have good descriptions as per KDE guidelines. -
I made sure my code conforms to the standards set in the HACKING file. -
I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.