#!/usr/bin/env bash
# Copyright 2019  Luke Shumaker

(
	export LC_ALL=C
xrandr | sed -rn -e 's@(.*) connected( .*)? ([0-9]+)x([0-9]+)\+([0-9]+)\+([0-9]+)( .*)? ([0-9]+)mm x ([0-9]+)mm( .*)?@\1 \3 \4@p'
#                      1             2      3        4         5         6       7      8            9         10
#                      `-outputName  |      `-fb_xpx `-fb_ypx  `-fb_xoff `-fb_yoff      `- hw_xmm    `- hw_ymm |
#                                    `-discard                                  `- discard                     `- discard
) | (
	case $# in
		0)
			cat
			;;
		1)
			while read -r output x y; do
				if [[ $output == "$1" ]]; then
					printf '%s %s\n' "$x" "$y"
				fi
			done
			;;
		*)
			echo 'Usage: get-res [OUTPUT]' >&2
			exit 2
			;;
	esac
)