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xsettings: use xrandr to compute appropriate DPI

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Vincent Bernat 2015-07-23 13:23:09 +02:00
parent 5710a37455
commit e0ceb40259
1 changed files with 13 additions and 5 deletions
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18
bin/xsettingsd-setup
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@ -1,12 +1,20 @@
#!/bin/sh
# Compute DPI. We extract the value from xrandr output. The screen
# size is correctly reported (while the X server is lying to respect
# the provided DPI). We round to the nearest quarter of 96 DPI (96,
# 120, 144, 168, 192...).
eval $(xrandr --current | sed -n 's/.* connected primary \([0-9]*\)x.* \([0-9]*\)mm x .*/wd=\1\nwm=\2/p')
if [ -n "$wd" -a -n "$wm" ]; then
dpi=$(echo "$wd/($wm*0.03937)" | bc)
dpi=$(printf "%.0f" $(echo "scale=1;$dpi*4/96" | bc))
dpi=$((dpi*96/4))
else
dpi=96
fi
# Build xsettingsd.local
cp ~/.config/awesome/xsettingsd ~/.config/awesome/xsettingsd.local
if [ -f ~/.config/awesome/xsettingsd.dpi ]; then
dpi=$(cat ~/.config/awesome/xsettingsd.dpi)
else
dpi=$(xdpyinfo | awk '$1 ~ /resolution:/ { print $2 }' | sed 's/x.*//')
fi
echo Xft/DPI $(( $dpi * 1024 )) >> ~/.config/awesome/xsettingsd.local
# Signal xsettingsd