# What does this script do?
# [legacy_conversion]
+# 0) Process command-line arguments
+# [legacy_conversion_step1]
# 1) Call latex to create a DVI file from LaTeX
# [legacy_conversion_step2]
# 2) Call dvips to create one PS file for each DVI page
+# [legacy_conversion_step3]
# 3) If dvips fails look for PDF and call gs to produce bitmaps
# 4) Otherwise call gs on each PostScript file to produce bitmaps
# [legacy_conversion_pdflatex]
from lyxpreview_tools import copyfileobj, error, filter_pages, find_exe, \
find_exe_or_terminate, join_metrics_and_rename, latex_commands, \
- latex_file_re, make_texcolor, mkstemp, progress, run_command, warning, \
- write_metrics_info
+ latex_file_re, make_texcolor, mkstemp, pdflatex_commands, progress, \
+ run_command, run_latex, warning, write_metrics_info
def usage(prog_name):
return dpi * (10.0 / fontsize) * (1000.0 / magnification)
-def legacy_latex_file(latex_file, fg_color, bg_color, bg_color_gr):
- use_preview_dvi_re = re.compile("(\s*\\\\usepackage\[[^]]+)(dvips\]{preview})")
- use_preview_pdf_re = re.compile("(\s*\\\\usepackage\[[^]]+)(pdftex\]{preview})")
+def legacy_latex_file(latex_file, fg_color, bg_color):
+ use_preview_re = re.compile(r"\s*\\usepackage\[([^]]+)\]{preview}")
+ fg_color_gr = make_texcolor(fg_color, True)
+ bg_color_gr = make_texcolor(bg_color, True)
tmp = mkstemp()
success = 0
try:
- for line in open(latex_file, 'r').readlines():
- match = use_preview_dvi_re.match(line)
- if match == None:
- match = use_preview_pdf_re.match(line)
- if match == None:
- tmp.write(line)
- continue
- success = 1
- tmp.write(" \\usepackage{color}\n" \
- " \\pagecolor[rgb]{%s}\n" \
- "%s\n" \
- % (bg_color_gr, match.group()))
- continue
-
- success = 1
- tmp.write("%stightpage,%s\n" \
- " \\AtBeginDocument{\\AtBeginDvi{%%\n" \
- " \\special{!userdict begin/bop-hook{//bop-hook exec\n" \
- " <%s%s>{255 div}forall setrgbcolor\n" \
- " clippath fill setrgbcolor}bind def end}}}\n" \
- % (match.group(1), match.group(2), fg_color, bg_color))
-
+ f = open(latex_file, 'r')
except:
# Unable to open the file, but do nothing here because
# the calling function will act on the value of 'success'.
warning('Warning in legacy_latex_file! Unable to open "%s"' % latex_file)
warning(`sys.exc_type` + ',' + `sys.exc_value`)
+ for line in f.readlines():
+ if success:
+ tmp.write(line)
+ continue
+ match = use_preview_re.match(line)
+ if match == None:
+ tmp.write(line)
+ continue
+ success = 1
+ # Package order: color should be loaded before preview
+ # Preview options: add the options lyx and tightpage
+ tmp.write(r"""
+\usepackage{color}
+\definecolor{fg}{rgb}{%s}
+\definecolor{bg}{rgb}{%s}
+\pagecolor{bg}
+\usepackage[%s,lyx,tightpage]{preview}
+\makeatletter
+\g@addto@macro\preview{\begingroup\color{bg}\special{ps::clippath fill}\color{fg}}
+\g@addto@macro\endpreview{\endgroup}
+\makeatother
+""" % (fg_color_gr, bg_color_gr, match.group(1)))
+
if success:
copyfileobj(tmp, open(latex_file,"wb"), 1)
fg_color = argv[4]
bg_color = argv[5]
- bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
latex = find_exe_or_terminate(latex or latex_commands)
- # Move color information into the latex file.
- if not legacy_latex_file(latex_file, fg_color, bg_color, bg_color_gr):
- error("Unable to move color info into the latex file")
+ pdf_output = latex in pdflatex_commands
- # Compile the latex file.
- latex_call = '%s "%s"' % (latex, latex_file)
+ return legacy_conversion_step1(latex_file, dpi, output_format, fg_color,
+ bg_color, latex, pdf_output, skipMetrics)
+
+
+# Add color info to the latex file, since ghostscript doesn't
+# have the option to set foreground and background colors on
+# the command line. Run the resulting file through latex.
+def legacy_conversion_step1(latex_file, dpi, output_format, fg_color, bg_color,
+ latex, pdf_output = False, skipMetrics = False):
- latex_status, latex_stdout = run_command(latex_call)
- if latex_status:
- warning("%s had problems compiling %s" \
- % (os.path.basename(latex), latex_file))
+ # Move color information, lyx and tightpage options into the latex file.
+ if not legacy_latex_file(latex_file, fg_color, bg_color):
+ error("""Unable to move the color information, and the lyx and tightpage
+ options of preview-latex, into the latex file""")
- return legacy_conversion_step2(latex_file, dpi, output_format, skipMetrics)
+ # Compile the latex file.
+ latex_status, latex_stdout = run_latex(latex, latex_file)
+
+ if pdf_output:
+ return legacy_conversion_step3(latex_file, dpi, output_format, True, skipMetrics)
+ else:
+ return legacy_conversion_step2(latex_file, dpi, output_format, skipMetrics)
# Creates a new LaTeX file from the original with pages specified in
# failed_pages, pass it through pdflatex and updates the metrics
filter_pages(latex_file, pdf_latex_file, failed_pages)
# pdflatex call
- pdflatex_call = '%s "%s"' % (pdflatex, pdf_latex_file)
- pdflatex_status, pdflatex_stdout = run_command(pdflatex_call)
- if pdflatex_status:
- warning("%s had problems compiling %s" \
- % (os.path.basename(pdflatex), pdf_latex_file))
+ pdflatex_status, pdflatex_stdout = run_latex(pdflatex, pdf_latex_file)
pdf_file = latex_file_re.sub(".pdf", pdf_latex_file)
original_bitmap, destination_bitmap)
+# The file has been processed through latex and we expect dvi output.
+# Run dvips, taking note whether it was successful.
def legacy_conversion_step2(latex_file, dpi, output_format, skipMetrics = False):
# External programs used by the script.
dvips = find_exe_or_terminate(["dvips"])
- gs = find_exe_or_terminate(["gswin32c", "gs"])
- pnmcrop = find_exe(["pnmcrop"])
# Run the dvi file through dvips.
dvi_file = latex_file_re.sub(".dvi", latex_file)
ps_file = latex_file_re.sub(".ps", latex_file)
- pdf_file = latex_file_re.sub(".pdf", latex_file)
dvips_call = '%s -i -o "%s" "%s"' % (dvips, ps_file, dvi_file)
dvips_failed = False
% (os.path.basename(dvips), dvi_file))
dvips_failed = True
+ return legacy_conversion_step3(latex_file, dpi, output_format, dvips_failed, skipMetrics)
+
+
+# Either latex and dvips have been run and we have a ps file, or
+# pdflatex has been run and we have a pdf file. Proceed with gs.
+def legacy_conversion_step3(latex_file, dpi, output_format, dvips_failed, skipMetrics = False):
+ # External programs used by the script.
+ gs = find_exe_or_terminate(["gswin32c", "gs"])
+ pnmcrop = find_exe(["pnmcrop"])
+
+ # Files to process
+ pdf_file = latex_file_re.sub(".pdf", latex_file)
+ ps_file = latex_file_re.sub(".ps", latex_file)
+
# Extract resolution data for gs from the log file.
log_file = latex_file_re.sub(".log", latex_file)
resolution = extract_resolution(log_file, dpi)
if __name__ == "__main__":
- exit(legacy_conversion(sys.argv)[0])
+ sys.exit(legacy_conversion(sys.argv)[0])
projects / lyx.git / blobdiff