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dotfiles/scripts/dpi

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#!/bin/sh
set -e
# Based on https://github.com/vincentbernat/awesome-configuration/blob/master/bin/xsettingsd-setup
dpi=$1
if [ -z "$1" ]; then
>&2 printf "Usage\n\t%s: <dpi>" "$(basename "$0")"
exit 1
fi
CONF_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/xsettingsd"
# Build xsettingsd.local
{
cat $CONF_DIR/xsettingsd.conf 2>/dev/null || true
echo Xft/DPI $(( $dpi*1024 ))
echo Gdk/WindowScalingFactor $(( $dpi/96 ))
echo Gdk/UnscaledDPI $(( $dpi*1024/($dpi/96) ))
} > $CONF_DIR/xsettingsd.local
pid=$(xprop -name xsettingsd _NET_WM_PID 2> /dev/null | awk '{print $NF}')
if [ -z "$pid" ]; then
xsettingsd -c $CONF_DIR/xsettingsd.local &
else
kill -HUP $pid
fi
echo Xft.dpi: $dpi | xrdb -merge