https://bugs.kde.org/show_bug.cgi?id=427309
Bug ID: 427309
Summary: Japanese Glyphs have unreliable Cell Widths
Product: konsole
Version: 20.08.1
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: font
Assignee: konsole-de...@kde.org
Reporter: flyingwaf...@pm.me
Target Milestone: ---
SUMMARY
Japanese glyphs have unreliable cell widths, causing entire lines to shift
left/right with certain glyphs. This was noticed while playing around with the
unimatrix script: https://github.com/will8211/unimatrix
STEPS TO REPRODUCE
1. Get unimatrix script: https://github.com/will8211/unimatrix
2. Run it with 'unimatrix -s 80 -l k' or 'unimatrix -s 80 -l m' (higher number
will have faster scrolling).
3. Watch as the glyphs scroll past, it will be noticeable that when including
Japanese glyphs the lines will shift left/right as the fall past. Comparison
with other terminal emulators makes this much easier to notice.
OBSERVED RESULT
Shifting left/right of lines with certain Japanese font glyphs.
EXPECTED RESULT
Consistent spacing and width of lines that contain Japanese font glyphs.
SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
Kernel Version: 5.8.13-gentoo
OS Type: 64-bit
Processors: 8 × AMD Ryzen 7 PRO 3700U w/ Radeon Vega Mobile Gfx
Memory: 13.6 GiB of RAM
Graphics Processor: AMD RAVEN
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