mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-09-20 06:49:56 +00:00
4da67cb792
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7658 a592a061-630c-0410-9148-cb99ea01b6c8
135 lines
3.3 KiB
Bash
135 lines
3.3 KiB
Bash
#! /bin/sh
|
|
|
|
# file fig2pdf.sh
|
|
# This file is part of LyX, the document processor.
|
|
# Licence details can be found in the file COPYING.
|
|
#
|
|
# author Angus Leeming
|
|
#
|
|
# Full author contact details are available in file CREDITS
|
|
|
|
|
|
# This script converts an XFIG image to something that pdflatex can process
|
|
# into high quality PDF.
|
|
|
|
# Usage: sh fig2pdf.sh ${base}.xfig
|
|
# to generate ${base}.pdftex_t
|
|
# Thereafter, you need only '\input{${base}.pdftex_t}' in your latex document.
|
|
|
|
# The external programs
|
|
FIG2DEV=fig2dev
|
|
# Used only by legacy_xfig
|
|
GS=gs
|
|
|
|
find_exe() {
|
|
test $# -eq 1 || exit 1
|
|
|
|
type $1 > /dev/null || {
|
|
echo "Unable to find \"$1\". Please install."
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
# modern_xfig() and legacy_xfig() are the functions that do all the work.
|
|
|
|
# Modern versions of xfig can output the image without "special" text as
|
|
# a PDF file ${base}.pdf and place the text in a LaTeX file
|
|
# ${base}.pdftex_t for typesetting by pdflatex itself.
|
|
modern_xfig() {
|
|
# Can we find fig2dev?
|
|
find_exe ${FIG2DEV}
|
|
|
|
input=$1
|
|
pdftex_t=$2
|
|
pdftex=$3.pdf
|
|
|
|
${FIG2DEV} -Lpdftex -p1 ${input} ${pdftex}
|
|
${FIG2DEV} -Lpdftex_t -p${outbase} ${input} ${pdftex_t}
|
|
|
|
exit 0;
|
|
}
|
|
|
|
|
|
# This function is used only by legacy_xfig.
|
|
# It manipulates the Bounding Box info to enable gs to produce
|
|
# the appropriate PDF file from an EPS one.
|
|
# The generated PostScript commands are extracted from epstopdf, distributed
|
|
# with tetex.
|
|
clean_epsfile() {
|
|
test $# -eq 1 || exit 1
|
|
|
|
# No bounding box info
|
|
grep '%%BoundingBox' $1 > /dev/null || return 1;
|
|
|
|
bbox=`sed -n '/^%%BoundingBox/p' $1`
|
|
llx=`echo ${bbox} | cut -d' ' -f2`
|
|
lly=`echo ${bbox} | cut -d' ' -f3`
|
|
urx=`echo ${bbox} | cut -d' ' -f4`
|
|
ury=`echo ${bbox} | cut -d' ' -f5`
|
|
|
|
width=`expr $urx - $llx`
|
|
height=`expr $ury - $lly`
|
|
xoffset=`expr 0 - $llx`
|
|
yoffset=`expr 0 - $lly`
|
|
|
|
temp=$1.??
|
|
sed "/^%%BoundingBox/{
|
|
s/^\(%%BoundingBox:\).*/\1 0 0 ${width} ${height}\\
|
|
<< \/PageSize [${width} ${height}] >> setpagedevice\\
|
|
gsave ${xoffset} ${yoffset} translate/
|
|
}" $1 > $temp
|
|
|
|
mv -f $temp $1
|
|
}
|
|
|
|
|
|
# Older versions of xfig cannot do this, so we emulate the behaviour using
|
|
# pstex and pstex_t output.
|
|
legacy_xfig() {
|
|
# Can we find fig2dev and epstopdf?
|
|
find_exe ${FIG2DEV}
|
|
find_exe ${GS}
|
|
|
|
input=$1
|
|
pdftex_t=$2
|
|
pdf=$3.pdf
|
|
pstex=$3.pstex
|
|
|
|
${FIG2DEV} -Lpstex ${input} ${pstex}
|
|
${FIG2DEV} -Lpstex_t -p${outbase} ${input} ${pdftex_t}
|
|
|
|
# Convert the ${pstex} EPS file (free of "special" text) to PDF format
|
|
# using gs
|
|
clean_epsfile ${pstex}
|
|
${GS} -q -dNOPAUSE -dBATCH -dSAFER \
|
|
-sDEVICE=pdfwrite -sOutputFile=${pdf} ${pstex}
|
|
rm -f ${pstex}
|
|
|
|
exit 0;
|
|
}
|
|
|
|
# The main logic of the script is below.
|
|
# All it does is ascertain which of the two functions above to call.
|
|
|
|
# We expect two args, the names of the input and output files.
|
|
test $# -eq 2 || exit 1
|
|
|
|
input=$1
|
|
output=$2
|
|
|
|
# Fail silently if the file doesn't exist
|
|
test -r $input || exit 0
|
|
|
|
# Strip the extension from ${output}
|
|
outbase=`echo ${output} | sed 's/[.][^.]*$//'`
|
|
|
|
# Ascertain whether fig2dev is "modern enough".
|
|
# If it is, then the help info will mention "pdftex_t" as one of the
|
|
# available outputs.
|
|
CONVERT_IT=modern_xfig
|
|
${FIG2DEV} -h | grep 'pdftex_t' > /dev/null || CONVERT_IT=legacy_xfig
|
|
|
|
${CONVERT_IT} ${input} ${output} ${outbase}
|
|
|
|
# The end
|