https://bugs.kde.org/show_bug.cgi?id=428138
Bug ID: 428138
Summary: Strange values of units.iconSizes.smallMedium with
different DPI scaling
Product: frameworks-plasma
Version: 5.75.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: libplasma
Assignee: notm...@gmail.com
Reporter: popov...@ukr.net
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
I'm not sure is it a bug or feature. I decided to check how the Plasma scales
icon sizes with different DPI scaling. What I expected to get for
units.iconSizes.smallMedium:
100% - 22
125% - 27 or 28
150% - 33
175% - 38 or 39
200% - 44
And here's what I got:
100% - 22
125% - 22
150% - 33
175% - 33
200% - 44
Why are the values so strange? Then I found some function that adjusts the
sizes of the icons
(https://invent.kde.org/frameworks/plasma-framework/-/blob/master/src/declarativeimports/kirigamiplasmadesktopstyle/Units.qml#L119):
function roundedIconSize(size) {
if (size < 16) {
return size;
} else if (size < 22) {
return 16;
} else if (size < 32) {
return 22;
} else if (size < 48) {
return 32;
} else if (size < 64) {
return 48;
} else {
return size;
}
}
Why are icon sizes adjusted? It seems like svg icons should render fine at any
scaling. Or am I missing something?
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE neon 5.20 User Edition / X11
KDE Plasma Version: 5.20.1
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
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