dattr

#!/bin/sh
# 
# Copyright (c) 2015 Laserswald, liscensed under the WTFPL
# Get the geometry of the given display.

# Global order of things. 
order=""

## Function definitions.

usage () {
    echo "usage: $(basename $0) [-axywh] DISPLAY"
    exit 1
}

# Convert width and height coords to absolute coords
absolute () {
    w=$(( $1 + $3 ))
    h=$(( $2 + $4 ))
    echo $w $h $3 $4
}
## Get the geometries of the connected monitors.
#  
# @return a table of connected monitors, with the name of the monitor and then the XYWH of the monitor as fields.
function get_geos() {
    echo "$(xrandr | grep -e " connected" | sed "s/ primary//g"  | cut --delimiter=' ' --fields='1,3')"
}

function show_geo() { w=$1;  h=$2;  x=$3;  y=$4; 
    for item in $order; do
        case $item in
             x) printf "$x " ;;
             y) printf "$y " ;;
             w) printf "$w " ;;
             h) printf "$h " ;;
        esac        
    done
    printf "\n"
}

# Parse them options. Do it.
while getopts axywh flag; do
    case $flag in 
        a) GIVE_ABS=1 ;;
        x|y|w|h) order=$(echo $order $flag);; # crude queue
        ?) usage ;;
    esac
done
shift $(( OPTIND - 1 ))

display=$1

# No given display? Ain't having that.
test -z $display && usage

# Default order
test $order || order='x y w h '

# Get the current display's geometry
geo=$(echo "$(get_geos)" | grep $display | cut -d' ' -f2 | tr '+x' ' ')
test $GIVE_ABS && geo=$(absolute $geo)
show_geo $geo