https://bugs.kde.org/show_bug.cgi?id=509739
Bug ID: 509739
Summary: The smoothing effect of Mouse Marks lines renders on a
shadow rectangle anchored to the mouse instead the
whole screen
Classification: Plasma
Product: kwin
Version First 6.4.5
Reported In:
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
While drawing with Mouse Mark a rectangle (presumably a smoothing effect for
the drawn lines) gets anchored to the cursor and it increases in size the
further the cursor gets from the screens topleft 0,0.
For example on an 1920x1080 screen, if the cursor is drawing say at 0,540 the
(anchored) smoothing box is now the size of 0,540 ie. it now touches the edge
of the screen.
So I presume the origo of the smoothing effect for Mouse Mark lines is being
drawn to the mouse position (as a rectangle?) instead on top of the of the
whole screen.
STEPS TO REPRODUCE
1. Draw a lot of lines
2. Draw more on top of other lines and you'll see a shadow rectangle anchored
under the mouse
3. Observe the shadow smoothing the drawn lines.
OBSERVED RESULT
The rectangle flickers the screen as it smoothes/unsmoothes the lines.
EXPECTED RESULT
No flicker and the lines are smoothed properly.
SOFTWARE/OS VERSIONS
kinfo:
Operating System: Manjaro Linux
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.16.8-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X3D 8-Core Processor
Memory: 128 GiB of RAM (125.4 GiB usable)
Graphics Processor: AMD Radeon RX 7900 XTX
ADDITIONAL INFORMATION
In the attachment the rectangle is very faint, it's a lot more noticeable on my
monitor/with my eyes (I'm not sure why).
Possibly related bugs:
https://bugs.kde.org/show_bug.cgi?id=337044
https://bugs.kde.org/show_bug.cgi?id=501215
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