#!/usr/bin/env bash

SR="$(xrandr -q | grep ' connected ' | grep -o '[0-9]*x[0-9]*+[0-9]*+[0-9]*')"

for RES in $SR; do
    W="$(awk -F '[x+]' '{print $1}' <<< "$RES")"
    H="$(awk -F '[x+]' '{print $2}' <<< "$RES")"
    Xoff="$(awk -F '[x+]' '{print $3}' <<< "$RES")"
    Yoff="$(awk -F '[x+]' '{print $4}' <<< "$RES")"
    MIDX=$(($W / 2 + $Xoff - 60  / 2))
    MIDY=$(($H / 2 + $Yoff - 60  / 2))
    printf "X: $W\nY: $H\nX-offset: $Xoff\nY-offset: $Yoff\nmiddlex: $MIDX\nmiddley: $MIDY\n"
done

while read LINE
do
    if [[ "$LINE" =~ ([0-9]+)x([0-9]+)\+([0-9]+)\+([0-9]+) ]]; then
        W=${BASH_REMATCH[1]}
        H=${BASH_REMATCH[2]}
        Xoff=${BASH_REMATCH[3]}
        Yoff=${BASH_REMATCH[4]}
        MIDX=$(($W / 2 + $Xoff - 60  / 2))
        MIDY=$(($H / 2 + $Yoff - 60  / 2))
        printf "X: $W\nY: $H\nX-offset: $Xoff\nY-offset: $Yoff\nmiddlex: $MIDX\nmiddley: $MIDY\n"
    fi
done <<<"$(xrandr)"