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lyx_mirror/lib/scripts/fig2pdftex.py
Richard Heck f9de88c53c Remove the shebang line from our python scripts, per Jose's suggestion.
Fedora ships these chmod 644 and has never seen a problem. The advantage
to doing this is that it better controls what version of python we are
using to launch the script, and it will reveal if we're somehow somewhere
not controlling that properly.
2014-01-28 12:52:16 -05:00

105 lines
3.2 KiB
Python

# -*- coding: utf-8 -*-
# file fig2pdf.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
#
# \author Angus Leeming
# \author Bo Peng
#
# 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:
# python fig2pdftex.py ${base}.fig ${base}.pdft
# This command generates
# ${base}.pdf the converted pdf file
# ${base}.pdft a tex file that can be included in your latex document
# using '\input{${base}.pdft}'
#
# Note:
# Do not use this command as
# python fig2pdftex.py file.fig file.pdf
# the real pdf file will be overwritten by a tex file named file.pdf.
#
import os, sys, re
def runCommand(cmd):
''' Utility function:
run a command, quit if fails
'''
if os.system(cmd) != 0:
print "Command '%s' fails." % cmd
sys.exit(1)
# We expect two args, the names of the input and output files.
if len(sys.argv) != 3:
sys.exit(1)
input, output = sys.argv[1:]
# Fail silently if the file doesn't exist
if not os.path.isfile(input):
sys.exit(0)
# Strip the extension from ${output}
outbase = os.path.splitext(output)[0]
# Ascertain whether fig2dev is "modern enough".
# If it is, then the help info will mention "pdftex_t" as one of the
# available outputs.
fout = os.popen('fig2dev -h')
help_msg = fout.read()
fout.close()
if 'pdftex_t' in help_msg:
# 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.
runCommand('fig2dev -Lpdftex -p1 %s %s.pdf' % (input, outbase))
runCommand('fig2dev -Lpdftex_t -p%s %s %s' % (outbase, input, output))
else:
# Older versions of xfig cannot do this, so we emulate the behaviour using
# pstex and pstex_t output.
runCommand('fig2dev -Lpstex %s %s.pstex' % (input, outbase))
runCommand('fig2dev -Lpstex_t -p %s %s %s' % (outbase, input, output))
# 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.
epsfile = outbase + '.pstex'
tmp = mkstemp()
boundingboxline = re.compile('%%BoundingBox:\s+(\d*)\s+(\d*)\s+(\d*)\s+(\d*)')
for line in open(epsfile).xreadlines():
if line[:13] == '%%BoundingBox':
(llx, lly, urx, ury) = map(int, boundingboxline.search(line).groups())
width = urx - llx
height = ury - lly
xoffset = - llx
yoffset = - lly
tmp.write('''%%%%BoundingBox: 0 0 %d %d
<< /PageSize [%d %d] >> setpagedevice
gsave %d %d translate
''' % (width, height, width, height, xoffset, yoffset))
else:
tmp.write(line)
tmp.close()
# direct move(rename) may fail under windows
os.unlink(epsfile)
os.rename(epsfile + '.??', epsfile)
# Convert the ${pstex} EPS file (free of "special" text) to PDF format
# using gs
runCommand('gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile=%s.pdf %s.pstex'\
% (outbase, outbase))
os.unlink(epsfile)