https://bugs.documentfoundation.org/show_bug.cgi?id=122218
--- Comment #145 from Emmeran Seehuber <roto...@rototor.de> ---
I also tried to look into it. (master on MacOS 10.15.2 with SDK 10.15)
AquaSalGraphics::CheckContext(): The backingScaleFactor of the window is
correct (2.0 for Retina) and so is the size of the CGLayer used as draw buffer
for the window (i.e. twice the window width x height). That looks all fine.
For me it seems something gets into a broken state in the CGContextRef while
painting the document content. Because not only the text but also all lines are
blurred.
This is just guessing, but maybe a scale with a factor other than 2 or
something like this? It would have to be something affected at compile time,
i.e. a constant of the SDK headers which changed between SDK 10.12 and 10.13.
Or a helper function in a SDK library.
The strange thing is, the print preview of Calc looks fine, i.e. not blurry,
everything sharp. The print preview of Writer on the other side is blurry. I
have this effect both with my master build and the official 6.3.4.2 build.
So the print preview of Calc does something different than the rest, because it
seems the CGContextRef is not getting in this bogus blurry state.
Any idea how to investigate this future? (I'm new to the LibreOffice code base;
Pointers are welcome)
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