mirror of
https://git.lyx.org/repos/lyx.git
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f7b9d57a45
The fixes are simple and on line with the changes made during
the 2.3 development. It was an oversight to leave them out.
With this commit all the python scripts should be supported by
python 2 and 3.
(cherry picked from 5b160e82be)
105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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# file fig2pdf.py
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# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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#
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# \author Angus Leeming
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# \author Bo Peng
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#
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# Full author contact details are available in file CREDITS
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# This script converts an XFIG image to something that pdflatex can process
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# into high quality PDF.
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# Usage:
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# python fig2pdftex.py ${base}.fig ${base}.pdft
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# This command generates
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# ${base}.pdf the converted pdf file
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# ${base}.pdft a tex file that can be included in your latex document
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# using '\input{${base}.pdft}'
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#
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# Note:
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# Do not use this command as
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# python fig2pdftex.py file.fig file.pdf
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# the real pdf file will be overwritten by a tex file named file.pdf.
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#
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from __future__ import print_function
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import os, sys, re
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def runCommand(cmd):
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''' Utility function:
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run a command, quit if fails
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'''
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if os.system(cmd) != 0:
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print("Command '%s' fails." % cmd)
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sys.exit(1)
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# We expect two args, the names of the input and output files.
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if len(sys.argv) != 3:
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sys.exit(1)
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input, output = sys.argv[1:]
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# Fail silently if the file doesn't exist
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if not os.path.isfile(input):
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sys.exit(0)
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# Strip the extension from ${output}
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outbase = os.path.splitext(output)[0]
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# Ascertain whether fig2dev is "modern enough".
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# If it is, then the help info will mention "pdftex_t" as one of the
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# available outputs.
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fout = os.popen('fig2dev -h')
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help_msg = fout.read()
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fout.close()
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if 'pdftex_t' in help_msg:
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# Modern versions of xfig can output the image without "special" text as
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# a PDF file ${base}.pdf and place the text in a LaTeX file
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# ${base}.pdftex_t for typesetting by pdflatex itself.
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runCommand('fig2dev -Lpdftex -p1 %s %s.pdf' % (input, outbase))
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runCommand('fig2dev -Lpdftex_t -p%s %s %s' % (outbase, input, output))
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else:
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# Older versions of xfig cannot do this, so we emulate the behaviour using
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# pstex and pstex_t output.
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runCommand('fig2dev -Lpstex %s %s.pstex' % (input, outbase))
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runCommand('fig2dev -Lpstex_t -p %s %s %s' % (outbase, input, output))
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# manipulates the Bounding Box info to enable gs to produce
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# the appropriate PDF file from an EPS one.
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# The generated PostScript commands are extracted from epstopdf, distributed
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# with tetex.
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epsfile = outbase + '.pstex'
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tmp = mkstemp()
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boundingboxline = re.compile(b'%%BoundingBox:\s+(\d*)\s+(\d*)\s+(\d*)\s+(\d*)')
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for line in open(epsfile, 'rb'):
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if line[:13] == b'%%BoundingBox':
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(llx, lly, urx, ury) = list(map(int, boundingboxline.search(line).groups()))
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width = urx - llx
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height = ury - lly
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xoffset = - llx
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yoffset = - lly
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tmp.write(b'''%%%%BoundingBox: 0 0 %d %d
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<< /PageSize [%d %d] >> setpagedevice
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gsave %d %d translate
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''' % (width, height, width, height, xoffset, yoffset))
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else:
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tmp.write(line)
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tmp.close()
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# direct move(rename) may fail under windows
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os.unlink(epsfile)
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os.rename(epsfile + '.??', epsfile)
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# Convert the ${pstex} EPS file (free of "special" text) to PDF format
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# using gs
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runCommand('gs -q -dNOPAUSE -dBATCH -dSAFER -sDEVICE=pdfwrite -sOutputFile=%s.pdf %s.pstex'\
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% (outbase, outbase))
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os.unlink(epsfile)
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