Add font ratio option

[xarkes]

Allow to increase/decrease global font size (not only disasm)

[xarkes]

Qt doesn't recommand overwritting default font.
The best is to use environment variables like QT_SCALE_FACTOR.
Feel free to reopen.

[xarkes]

Reopening because I think it's still useful anyway. People don't have to do hack through the command lines.

[jamie-cyc]

This would be good for my poor vision (#675). Are you saying that I can 'hack' this manually by setting the QA_SCALE_FACTOR envvar in bash and then opening Cutter?

[xarkes]

Exactly, or directly in command line:
QT_SCALE_FACTOR=2.0 ./Cutter

[jamie-cyc]

Ah interesting, that might help me. Is there an equivalent for Windows 10?

If not, I guess you could just compile Cutter in Cygwin and launch it that way with the scaling.

[xarkes]

You can do the same in the cmd prompt:

set QT_SCALE_FACTOR=2.0
Cutter.exe

[jamie-cyc]

Ah right, that's actually really helped. I guess the default value is 1.0?

It's just issue #675 causing issues now.

Thank you.

[karliss]

I am closing this. There is no need to "hack through the command lines". Every sane operating system has display scaling factor configuration and Qt respects that.

Situation was a bit worse 2 years ago using an older Qt version and older desktop environment versions. Using latest Qt everything is mostly working. Most of the remaining tasks are linked in high dpi project https://github.com/radareorg/cutter/projects/16 and also my attempt updating Qt #1868 (5.14 has better fractional scaling support on Windows).