hlwm: simplify panel

xdg-config-dir/herbstluftwm/autostart

@@ -1,6 +1,6 @@
 #!/bin/sh
 # env
-# Written in 2019 by Lucas
+# Written in 2019-2020 by Lucas
 # CC0 1.0 Universal/Public domain - No rights reserved
 #
 # To the extent possible under law, the author(s) have dedicated all
@@ -166,16 +166,6 @@ hc unlock
 
 hc detect_monitors
 
-if [ -f ~/.config/herbstluftwm/herbstpanel.sh ]; then
-	bar_height=$(($hlwm_font_height))
 for m in $(hc list_monitors | cut -d : -f 1); do
-		hc monitor_rect "$m" | {
+	sh ~/.config/herbstluftwm/herbstpanel.sh "$m" &
-			read -r x y w h
+done
-			# `lemonbar -b` is relative from the bottom, so no need
-			# to do arithmetic in here
-			#y=$(($y + $h - $bar_height))
-			printf "%s\t%u\t%u\t%u\t%u\n" \
-			    "$m" "$x" "$y" "$w" $bar_height
-		}
-	done | sh ~/.config/herbstluftwm/herbstpanel.sh &
-fi

xdg-config-dir/herbstluftwm/herbstpanel.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 # env
-# Written in 2019 by Lucas
+# Written in 2019-2020 by Lucas
 # CC0 1.0 Universal/Public domain - No rights reserved
 #
 # To the extent possible under law, the author(s) have dedicated all
@@ -14,7 +14,16 @@ if [ -f ~/.config/herbstluftwm/theme ]; then
 	. ~/.config/herbstluftwm/theme
 fi
 
-show_tags() {
+bar_geomtry()
+{
+	herbstclient monitor_rect "$m" | {
+		read -r mx my mw mh
+		printf "%ux%u+%u+%u\n" "$mw" "$hlwm_font_height" "$mx" "$my"
+	}
+}
+
+show_tags()
+{
 	mon=$1
 	herbstclient tag_status "$mon" | tr "\t" "\n" | {
 		focused=$(herbstclient attr tags.focus.name)
@@ -33,7 +42,8 @@ show_tags() {
 	}
 }
 
-tags_status() {
+tags_status()
+{
 	mon=$1
 	show_tags "$mon"
 	herbstclient -i "tag_(changed|flags)" | while read -r discard; do
@@ -41,12 +51,13 @@ tags_status() {
 	done
 }
 
-if [ $# -ne 0 ]; then
+if [ $# -ne 1 ]; then
-	printf "Usage: %s monitor x y width height\n" "${0##*/}" >&2
+	printf "Usage: %s monitor\n" "${0##*/}" >&2
 	exit 1
 fi
 
-while IFS="	" read -r m x y w h; do
+geometry=$(bar_geometry "$m")
+
 left=
 center=
 right=
@@ -66,8 +77,8 @@ while IFS="	" read -r m x y w h; do
 		;;
 	esac
 	printf "%s%s%s\n" "$left" "$center" "$right"
-	done | lemonbar-xft -b -g "${w}x${h}+${x}+${y}" \
+done | lemonbar-xft -b -g "$geometry" \
     -B "$hlwm_background" -F "$hlwm_foreground" -f "$hlwm_face" &
-done
+
 herbstclient -w reload
 kill 0