i3lock-simple

#!/bin/bash
# i3lock-simle
# This script will:
# 1. take screenshot of the screen
# 2. pixelize the image, by scaling down and them scale up the image
# 3. if an overlay image exist, merge the screenshot with the overlay
# 4. lock the screen with the image
# Author: Bruno de Lima <github.com/brunodles>

tmp=/tmp/screen.png
cfg_pixelize_scale='10'
scale_down=$(( 100/cfg_pixelize_scale ))
scale_up=$(( 100*cfg_pixelize_scale ))
scrot -e "convert \$f -scale "$scale_down"% -scale "$scale_up"% ${tmp}" "${tmp}"

if [[ -f $1 ]] ; then
	img=$1 
else
	img=~/.config/i3/lock.png
fi

if [[ -f $img ]] 
then
    # placement x/y
    PX=0
    PY=0
    # lockscreen image info
    R=$(file $img | grep -o '[0-9]* x [0-9]*')
    RX=$(echo $R | cut -d' ' -f 1)
    RY=$(echo $R | cut -d' ' -f 3)

    SR=$(xrandr --query | grep ' connected' | sed 's/primary //' | cut -f3 -d' ')
    for RES in $SR
    do
        # monitor position/offset
        SRX=$(echo $RES | cut -d'x' -f 1)                   # x pos
        SRY=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 1)  # y pos
        SROX=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 2) # x offset
        SROY=$(echo $RES | cut -d'x' -f 2 | cut -d'+' -f 3) # y offset
        PX=$(($SROX + $SRX / 2 - $RX / 2))
        PY=$(($SROY + $SRY / 2 - $RY / 2))

        convert /tmp/screen.png $img -geometry +$PX+$PY -composite -matte  /tmp/screen.png
        #echo "done"
    done
fi 
# dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop
# i3lock  -I 10 -d -e -u -n -i /tmp/screen.png
i3lock -e -u -n -i /tmp/screen.png