Merge pull request #6 from BuddhiLW/master

Added option to output wallpaper to specific monitor

lazywal-cli

@@ -9,6 +9,23 @@ _help()
 	echo "		-r		- Restore last wallpaper"
 	echo "		-k		- Kill wallpaper"
 	echo "		-d		- Debug"
+	echo "		-D		- Display with specification (e.g., 1980x1080+0)"
+}
+
+xwinwrap_func()
+{
+	if [ "$display" = "" ];then
+		# https://superuser.com/questions/196532/how-do-i-find-out-my-screen-resolution-from-a-shell-script
+		display=$(xdpyinfo | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
+		xwinwrap_args="-g $display -ni -b -st -un -o 1.0 -ov -debug"
+	fi
+
+	xwinwrap_args="-g $display -ni -b -st -un -o 1.0 -ov -debug"
+}
+
+_set_display()
+{
+	display=$1
 }
 
 _kill()
@@ -21,7 +38,7 @@ _use_wal()
 {
 	_kill
 	file_path=$1
-	xwinwrap_args="-fs -ni -b -nf -un -o 1.0 -ov -debug"
+	xwinwrap_func
 	mpv_args="-wid WID --loop --no-audio --no-resume-playback --panscan=1.0"
 
 	if [ "$debug" = "true" ];
@@ -45,7 +62,7 @@ then
 	exit 1
 fi
 
-while getopts "hdrk" option; do
+while getopts "hdrkD:" option; do
 	case $option in
 		h) # display Help
 			_help
@@ -60,13 +77,17 @@ while getopts "hdrk" option; do
 		r) # restore wal
 			_restore
 			exit;;
+		D) # display on specification (use this for external monitors)
+			_set_display ${OPTARG}
+			_restore
+			exit;;
 		*) # Illegal option
 			_help
 			exit;;
 	esac
 done
 
-for i in $*; do
+for i in "$@"; do
 	if [ -e $i ]
 	then
 		file_path=$(realpath $i)