82 lines
1.5 KiB
Bash
82 lines
1.5 KiB
Bash
#!/bin/sh
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# env
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# Written in 2022-2023 by Lucas
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# CC0 1.0 Universal/Public domain - No rights reserved
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#
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# To the extent possible under law, the author(s) have dedicated all
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# copyright and related and neighboring rights to this software to the
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# public domain worldwide. This software is distributed without any
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# warranty. You should have received a copy of the CC0 Public Domain
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# Dedication along with this software. If not, see
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# <http://creativecommons.org/publicdomain/zero/1.0/>.
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usage()
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{
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printf "Usage: %s [-n] [targetdpi]\n" "${0##*/}" >&2
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exit 1
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}
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err()
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{
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printf "%s: %s\n" "${0##*/}" "$*" >&2
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exit 1
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}
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show=false
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while getopts n flag; do
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case $flag in
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n) show=true ;;
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*) usage ;;
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esac
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done
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shift $((OPTIND - 1))
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if [ $# -gt 1 ]; then
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usage
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fi
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FACESIZES="8.0 4.0 6.0 7.0 8.0 9.0 10.0 12.0"
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basedpi=$(xdpyinfo | grep '^ resolution:' | {
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min=
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while read -r line; do
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set -- $line
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dpi_x=${2%%x*}
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dpi_y=${2##*x}
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dpi_sum=$(( $dpi_x + $dpi_y ))
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if [ -z "$min" ]; then
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min=$dpi_sum
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else
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min=$(( $dpi_sum < $min ? $dpi_sum : $dpi ))
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fi
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done
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if [ -n "$min" ]; then
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echo "$min / 2" | bc -l
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fi
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})
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if [ -z "$basedpi" ]; then
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err "Can't find DPI"
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fi
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targetdpi=${1:-96}
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for facesize in $FACESIZES; do
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echo "$basedpi * $facesize / $targetdpi"
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done | bc -l | {
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i=0
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printf "Xft.dpi:\t%.1f\n" "$targetdpi"
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while read -r v; do
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if [ $i -eq 0 ]; then
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printf "XTerm.VT100.faceSize:\t%f\n" "$v"
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else
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printf "XTerm.VT100.faceSize%d:\t%f\n" $i "$v"
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fi
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i=$(($i + 1))
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done
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} | if $show; then
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cat
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else
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xrdb -merge
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fi
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