From 100a23fb037a67473e4f5e1992637e9a7f5897e8 Mon Sep 17 00:00:00 2001
From: Vincent Bernat <vincent@bernat.ch>
Date: Tue, 2 Nov 2021 13:29:31 +0100
Subject: [PATCH] picom: compute an offset for shadows

---
 bin/picom-configure | 2 ++
 dotfiles/picom.conf | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/bin/picom-configure b/bin/picom-configure
index 8c1f8d7..eee1bc2 100755
--- a/bin/picom-configure
+++ b/bin/picom-configure
@@ -4,11 +4,13 @@ dpi=$(xrdb -query | sed -nE 's/^Xft\.dpi:\s*//p')
 
 POLYBAR_HEIGHT=$((20 * dpi / 96))
 SHADOW_RADIUS=$((12 * dpi / 96))
+SHADOW_OFFSET=$((SHADOW_RADIUS*2/3))
 
 # Configure picom
 cat ~/.config/i3/dotfiles/picom.conf \
     | sed -e "s/@POLYBAR_HEIGHT@/$POLYBAR_HEIGHT/" \
     | sed -e "s/@SHADOW_RADIUS@/$SHADOW_RADIUS/" \
+    | sed -e "s/@SHADOW_OFFSET@/$SHADOW_OFFSET/" \
           > $XDG_RUNTIME_DIR/i3/picom.conf.new
 
 # Put new configuration file in place
diff --git a/dotfiles/picom.conf b/dotfiles/picom.conf
index b412330..c498455 100644
--- a/dotfiles/picom.conf
+++ b/dotfiles/picom.conf
@@ -37,10 +37,10 @@ opacity-rule = [
 # Shadow and fading
 fade-in-step = 0.08;
 fade-out-step = 0.08;
-shadow-opacity = 0.5;
+shadow-opacity = 1;
 shadow-radius = @SHADOW_RADIUS@;
-shadow-offset-x = 0;
-shadow-offset-y = 0;
+shadow-offset-x = -@SHADOW_OFFSET@;
+shadow-offset-y = -@SHADOW_OFFSET@;
 shadow-exclude-reg = "x@POLYBAR_HEIGHT@+0+0"
 wintypes:
 {