[Octave-bug-tracker] [bug #49053] figure scaling issue with Qt 5 on macOS with Retina / HiDPI scaling

[John Swensen]

Follow-up Comment #28, bug #49053 (project octave):

OK. I reworked the patch to store the information in the display_info object
and have the scale default to 1. Only on machines that have QT 5.0 or greater
will we query for the screen scale and then set it during the construction of
the QtHandles object.

This patch should also take care of the image objects and the colorbar (which
is technically also an image).

I am sure there are a whole slew of other OpenGL-drawn objects that might need
an update based on this screen scale factor, but I haven't seen them yet. 

I also suspect I am in violation of many Octave code style standards. Please
let me know what I need to fix and test away!

In particular, it would be nice to have one of the Linux folks with QT4.8 give
it a whirl to make sure I didn't break anything.



(file #42946)
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Additional Item Attachment:

File name: retina_scale_hg_displayinfo.patch Size:6 KB


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