#!/bin/bash
#
# Syntax:  fig2jpg [-h] [-c] [-d density] filename [...]
#
# Purpose: Transforms .fig files into .jpg files using fig2dev and convert.
#          By default the fig files are taken from ~/fig/xfig.
#          However, if the -c flag is given, then the fig files are taken
#          from the current directory.
#          The output is always placed into the current directory.
#          With the -d flag you can specify the density; the default value is
#          300.
#          The -h flag shows the help info for this command.
#
# See also: fig2eps, fig2png, eps2jpg

# Created: Jul 26, 2007       by Bart De Schutter
# Last revised: Jan  2, 2011  by Bart De Schutter
#
# See http://www.deschutter.info/util/scripts.html for the latest version of
# this script.

# Status: public
# Category: images, xfig

#
# Process input arguments.
#

fig_dir=~/fig/xfig
density=300
while getopts :hcd: option
do
   case "$option" in
      h) sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
         exit 1
         ;;
      c) fig_dir=$(pwd)
         ;;
      d) density=${OPTARG}
         ;;
      :) echo >&2
         echo >&2 "Option -$OPTARG requires an argument."
         echo >&2
         sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
         echo >&2
         exit 1
         ;;
     \?) echo >&2
         echo >&2 "Unknown option: $OPTARG"
         echo >&2
         sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
         exit 1
         ;;
   esac
done
shift $(($OPTIND-1))

if [ $# -eq 0 ];
then 
   echo >&2
   echo >&2 "ERROR: ${0##*/} requires at least 1 input argument."
   echo >&2
   sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
   exit 1
fi

#
# Convert fig files into jpg files.
#

for fname in "$@"
do
   filename="${fname%.fig}"
   basename="${filename##*/}"
   if [ -f "$fig_dir/${filename}.fig" ]
   then
      fig2dev -L eps -c "$fig_dir/${filename}.fig" | \
         convert -antialias -density $density - "${basename}.jpg"
   else
      echo >&2
      echo >&2 "ERROR: file ${filename}.fig not found."
      echo >&2
   fi
done