[okular] [Bug 410723] Freehand annotation jagged lines with stylus

[Andreas Hurka]

https://bugs.kde.org/show_bug.cgi?id=410723

Andreas Hurka <andreas at qvxb.de> changed:

           What    |Removed                     |Added
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                 CC|                            |andreas at qvxb.de

--- Comment #22 from Andreas Hurka <andreas at qvxb.de> ---
I had a similar issue where there was a more or less constant zig zag pattern
in the freehand lines using the surface pen on surface book with ferenOS
(bionic, neon(I think)).
After the installation of a lot of dev libraries I removed the input from the
pen much like independent-squirrel did in comment 15 with similar results:
zig zag is gone, although the lines aren't really smooth, probably X only
simulating so many mouse actions in a given time frame. I somehow managed to
get okular to crash when I select a custom annotation preset and mix the
buttons up (freehand line is underline, squiggle is freehand line etc.) in the
process.
Btw: Can someone link me a resource for uninstalling stuff installed trough
sudo make install?
I do not really understand the underlying functionality of those annotations,
but I would suggest ignoring mouse input when pen input is being detected, or
an option to ignore the pen which gets automatically suggested when a repeated
two point pattern or simultaneous input through mouse and pen is detected.

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