#!/usr/bin/env zsh
# Generates an FVWM menu for selecting the PNG images found in a given
# directory.  Thumbnails for the images are generated on the fly using convert
# from ImageMagick, and stored in the .thumbs subdirectory.  The menu items
# run the specified function with the filename as the first argument.

menu="MenuWallpaper"
func="SetWallpaper"
thumber="$FVWM_USERDIR/scripts/thumbnail.zsh"

if [ ! -d "$1" ]; then
	echo "usage: $0 <directory> [menuname]" 1>&2
	exit 1
fi
[ -n "$2" ] && menu="$2"

for i in "$1"/*$($FVWM_USERDIR/scripts/C/xaspect).png; do
	thumb="`$thumber --size x160 "$i"`"
	echo "AddToMenu $menu \"`basename "${i%.png}"`*$thumb*\" $func \"$i\""
done