screen-layout

#!/bin/bash

set -e

MAIN_SCREEN=LVDS1
MAIN_SCREEN_RESOLUTION=1920x1080
#MAIN_SCREEN_RESOLUTION=$(xrandr | grep $MAIN_SCREEN | sed -n 's/.* \([0-9]\+x[0-9]\+\)+.*/\1/p')
#MAIN_SCREEN_RESOLUTION_AND_PANNING=$(xrandr | grep $MAIN_SCREEN | sed -n 's/.* \([0-9]\+x[0-9]\++[0-9]\++[0-9]\+\).*/\1/p')

connected_screens() {
    xrandr | sed -n 's/\([-a-zA-Z0-9]\+\) connected.*/\1/p' | grep -v "$MAIN_SCREEN" | xargs
}

CONNECTED_SCREENS=$(connected_screens)

if [ -z "$CONNECTED_SCREENS" ]; then
    echo "No connected screens found"
else
    for screen in $CONNECTED_SCREENS; do
        echo "Configuring $screen:"
        select MODE in mirror above off; do
            case $MODE in
            mirror)
                xrandr --output $screen --off
                xrandr --output $screen --auto
                xrandr --output $MAIN_SCREEN --primary --auto --same-as $screen --mode $MAIN_SCREEN_RESOLUTION
            ;;
            above)
                screen_resolution=$(xrandr | grep $screen | sed -n 's/.* \([0-9]\+x[0-9]\+\)+.*/\1/p')
                xrandr --nograb --output $screen --mode $screen_resolution
                # xrandr --nograb --output $screen --panning 0x0+0+0
                xrandr --nograb --output $screen --panning $screen_resolution+0+0/0x0+0+0/0/0/0/-1200
                xrandr --output $MAIN_SCREEN --primary --auto --below $screen --panning 0x0+0+0/0x0+0+0 # --auto
            ;;
            off)
                xrandr --output $screen --off
            ;;
            esac
            exit 0
        done
    done
fi