[Octave-bug-tracker] [bug #59128] Bad default font choices on macOS 10.15 Catalina

[Rik]

Follow-up Comment #9, bug #59128 (project octave):

According to the Wikipedia entry for "American Typewriter"
(https://en.wikipedia.org/wiki/American_Typewriter):

"American Typewriter is a slab serif typeface created in 1974 by Joel Kaden
and Tony Stan for International Typeface Corporation.[4] It is based on the
slab serif style of typewriters; however, unlike most true typewriter fonts,
it is a proportional design: the characters do not all have the same width."

So, it looks cool but is not an appropriate font for code.  It could be bad
hinting in the font information which Qt then relies on.  Or Qt may only be
taking the StyleHint as a hint, and not a directive.  Or the Qt match
algorithm may be taking the hint "QFont::TypeWriter" and finding "Typewriter"
in the name of the font assumes it is a match.

Given that Mac & Windows platforms are a little different from Linux (they
ship a guaranteed set of fonts) it might be easiest to resolve this by picking
a font of the appropriate class and availability for those platforms.

There was a thread about default fonts way back in 2013 which also featured
Torsten
(https://octave.1599824.n4.nabble.com/Default-editor-fonts-td4659463.html).



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