import glob, os, pipes, re, string, sys
-from lyxpreview_tools import copyfileobj, error, filter_pages, find_exe, \
- find_exe_or_terminate, join_metrics_and_rename, latex_commands, \
+from lyxpreview_tools import check_latex_log, copyfileobj, error, filter_pages,\
+ find_exe, find_exe_or_terminate, join_metrics_and_rename, latex_commands, \
latex_file_re, make_texcolor, mkstemp, pdflatex_commands, progress, \
run_command, run_latex, warning, write_metrics_info
\definecolor{bg}{rgb}{%s}
\pagecolor{bg}
\usepackage[%s,tightpage]{preview}
-\IfFileExists{lmodern.sty}{\usepackage{lmodern}}{\usepackage{ae,aecomp}}
\makeatletter
+\def\t@a{cmr}
+\if\f@family\t@a
+\IfFileExists{lmodern.sty}{\usepackage{lmodern}}{\usepackage{ae,aecompl}}
+\fi
\g@addto@macro\preview{\begingroup\color{bg}\special{ps::clippath fill}\color{fg}}
\g@addto@macro\endpreview{\endgroup}
\makeatother
# Compile the latex file.
latex_status, latex_stdout = run_latex(latex, latex_file)
if latex_status:
- warning("trying to recover from failed compilation")
+ progress("Will try to recover from %s failure" % latex)
if pdf_output:
return legacy_conversion_step3(latex_file, dpi, output_format, True, skipMetrics)
def legacy_conversion_pdflatex(latex_file, failed_pages, legacy_metrics,
use_pdftocairo, conv, gs_device, gs_ext, alpha, resolution, output_format):
+ error_count = 0
+
# Search for pdflatex executable
pdflatex = find_exe(["pdflatex"])
if pdflatex == None:
warning("Can't find pdflatex. Some pages failed with all the possible routes.")
+ failed_pages = []
else:
# Create a new LaTeX file from the original but only with failed pages
pdf_latex_file = latex_file_re.sub("_pdflatex.tex", latex_file)
filter_pages(latex_file, pdf_latex_file, failed_pages)
# pdflatex call
+ error_pages = []
pdflatex_status, pdflatex_stdout = run_latex(pdflatex, pdf_latex_file)
+ if pdflatex_status:
+ error_pages = check_latex_log(latex_file_re.sub(".log", pdf_latex_file))
pdf_file = latex_file_re.sub(".pdf", pdf_latex_file)
latex_file_root = latex_file_re.sub("", pdf_latex_file)
if conv_status:
# Give up!
warning("Some pages failed with all the possible routes")
+ failed_pages = []
else:
# We've done it!
pdf_log_file = latex_file_re.sub(".log", pdf_latex_file)
pdf_metrics = legacy_extract_metrics_info(pdf_log_file)
+ # Invalidate metrics for pages that produced errors
+ if len(error_pages) > 0:
+ for index in error_pages:
+ pdf_metrics.pop(index - 1)
+ pdf_metrics.insert(index - 1, (index, -1.0))
+ error_count += 1
+
original_bitmap = latex_file_re.sub("%d." + output_format, pdf_latex_file)
destination_bitmap = latex_file_re.sub("%d." + output_format, latex_file)
join_metrics_and_rename(legacy_metrics, pdf_metrics, failed_pages,
original_bitmap, destination_bitmap)
+ return error_count
+
# The file has been processed through latex and we expect dvi output.
# Run dvips, taking note whether it was successful.
log_file = latex_file_re.sub(".log", latex_file)
resolution = extract_resolution(log_file, dpi)
+ # Check whether some pages produced errors
+ error_pages = check_latex_log(log_file)
+
# Older versions of gs have problems with a large degree of
# anti-aliasing at high resolutions
alpha = 4
# Pass failed pages to pdflatex
if len(failed_pages) > 0:
warning("Now trying to obtain failed previews through pdflatex")
- legacy_conversion_pdflatex(latex_file, failed_pages, legacy_metrics,
- use_pdftocairo, conv, gs_device, gs_ext, alpha, resolution,
- output_format)
+ error_count = legacy_conversion_pdflatex(latex_file, failed_pages,
+ legacy_metrics, use_pdftocairo, conv, gs_device, gs_ext, alpha,
+ resolution, output_format)
+ else:
+ error_count = 0
+
+ # Invalidate metrics for pages that produced errors
+ if len(error_pages) > 0:
+ for index in error_pages:
+ if index not in failed_pages:
+ legacy_metrics.pop(index - 1)
+ legacy_metrics.insert(index - 1, (index, -1.0))
+ error_count += 1
# Crop the ppm images
if pnmcrop != None and output_format == "ppm":
# Extract metrics info from the log file.
metrics_file = latex_file_re.sub(".metrics", latex_file)
write_metrics_info(legacy_metrics, metrics_file)
+ if error_count:
+ warning("Failed to produce %d preview snippet(s)" % error_count)
return (0, legacy_metrics)