#!/bin/sh
#
# $Id$
#
# Copyright 1989-2016 MINES ParisTech
#
# This file is part of PIPS.
#
# PIPS is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# PIPS is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.
#
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with PIPS.  If not, see <http://www.gnu.org/licenses/>.
#


# This takes a PIPS output file in the GRAPH format
# and display it using the given viewer or the one by default.


usage="                                                              \n"\
"usage: $0 format graph [viewer]                                      \n"\
"\tformat : it can be davinci or dot                                  \n"\
"\tgraph  : it should be an output pips file such as graph.pref-graph \n"\
"\tviewer : viewer to use, default is daVinci or evince               \n\n"


viewer="default"

if [ $# -eq 3 -o $# -eq 2 ]
then

    if [ $# -eq 3 ]
    then
	# set the viewer if given in the command line
	viewer=$3 
    fi
    # set the format and input-file nme from the command line
    format=$1
    input_file_name=$2
    if [ "$format" = "davinci" ]
    then
	# daVinci case
	output_file_name="$input_file_name"".da"
	pips_unstructured2daVinci $input_file_name > $output_file_name
	if [ $# -eq 2 ]
	then
	    # no viewer given by command line set it to daVinci
	    viewer="daVinci"
	fi
    elif [ "$format" = "dot" ]
    then
	# dot case
	output_file_name="$input_file_name"".ps"
	pips_unstructured2dot $input_file_name
	if [ $# -eq 2 ]
	then
	    # no viewer given by command line set it to evince
	    viewer="evince"
	fi
    else
	# unsuported case
	echo $usage
	exit 1
    fi

    # display the result
    $viewer $output_file_name&

    exit 0
fi

echo $usage
exit 1