From cfc84cac169d52b5a846ba6d77b58f45249ec63b Mon Sep 17 00:00:00 2001
From: Marco Carvalho <marcoacarvalho@gmail.com>
Date: Tue, 19 Jun 2018 16:20:38 -0300
Subject: [PATCH] Updated for multihead systems

This update takes one separate screenshot per display connected, apply all the effects, merge the padlock image and stich them in order to have one padlock image per screen
---
 .config/i3/lock.sh | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/.config/i3/lock.sh b/.config/i3/lock.sh
index c50e0c2..20beaf4 100755
--- a/.config/i3/lock.sh
+++ b/.config/i3/lock.sh
@@ -1,13 +1,26 @@
 #!/bin/bash
+#!/bin/bash
 
 # Approximate timeout rate in milliseconds (checked every 5 seconds).
 timeout="10000"
 
-# Take a screenshot:
-scrot /tmp/screen.png
+# Take a screenshot of every screen available:
+xdpyinfo -ext XINERAMA | sed '/^  head #/!d;s///' |
+{
+  while IFS=' :x@,' read i w h x y; do
+    INDEX=$i
+    import -window root -crop ${w}x$h+$x+$y /tmp/head_$i.png
+  done
 
-# Add the lock to the swirled and blurred image:
-[[ -f ~/.config/i3/lock.png ]] && convert /tmp/screen.png -paint 1 -swirl 360  ~/.config/i3/lock.png -gravity center -composite -matte /tmp/screen.png
+# Add the lock to the swirled and blurred images:
+  for i in `seq 0 ${INDEX}`;
+    do
+      convert /tmp/head_${i}.png -paint 1 -swirl 360 ~/.config/i3/lock.png -gravity center -composite -matte /tmp/head_${i}.png;
+    done
+}
+
+#Combine all screen images into one big image
+convert +append /tmp/head_*.png /tmp/screen.png
 
 # Pause music (mocp and mpd):
 mocp -P
@@ -18,6 +31,6 @@ i3lock -e -f -c 000000 -i /tmp/screen.png
 
 # If still locked after $timeout milliseconds, turn off screen.
 while [[ $(pgrep -x i3lock) ]]; do
-	[[ $timeout -lt $(xssstate -i) ]] && xset dpms force off
-	sleep 5
+  [[ $timeout -lt $(xssstate -i) ]] && xset dpms force off
+  sleep 5
 done