from lyxpreview_tools import copyfileobj, error, find_exe, \
find_exe_or_terminate, make_texcolor, mkstemp, run_command, warning, \
- write_metrics_info
+ write_metrics_info, filter_pages, join_metrics_and_rename
# Pre-compiled regular expression.
latex_file_re = re.compile("\.tex$")
if frac < 0 or frac > 1:
frac = 0.5
- results.append((match.group(1), frac))
+ results.append((int(match.group(1)), frac))
else:
tp_descent = string.atof(match.group(2))
# the calling function will act on the value of 'success'.
warning('Warning in legacy_extract_metrics_info! Unable to open "%s"' % log_file)
warning(`sys.exc_type` + ',' + `sys.exc_value`)
-
+
if success == 0:
error("Failed to extract metrics info from %s" % log_file)
return results
-
def extract_resolution(log_file, dpi):
fontsize_re = re.compile("Preview: Fontsize")
magnification_re = re.compile("Preview: Magnification")
gs_device = "pnmraw"
gs_ext = "ppm"
+ # Extract the metrics from the log file
+ legacy_metrics = legacy_extract_metrics_info(log_file)
+
+ # List of pages which failed to produce a correct output
+ failed_pages = []
+
# Generate the bitmap images
-
if dvips_failed:
gs_call = '%s -dNOPAUSE -dBATCH -dSAFER -sDEVICE=%s ' \
'-sOutputFile="%s%%d.%s" ' \
i = 0
ps_files = glob.glob("%s.[0-9][0-9][0-9]" % latex_file_re.sub("", latex_file))
ps_files.sort()
+
+ # Call GhostScript for each page
for file in ps_files:
i = i + 1
gs_status, gs_stdout = run_command(gs_call % (i, file))
if gs_status != None:
- warning("Failed: %s %s" % (os.path.basename(gs), file))
+ # gs failed, keep track of this
+ failed_pages.append(i)
+
+
+ # Pass failed pages to pdflatex
+ if len(failed_pages) > 0:
+ pdflatex = find_exe(["pdflatex"], path)
+ if pdflatex != None:
+ # 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
+ pdflatex_call = '%s "%s"' % (pdflatex, pdf_latex_file)
+ pdflatex_status, pdflatex_stdout = run_command(pdflatex_call)
+
+ pdf_file = latex_file_re.sub(".pdf", pdf_latex_file)
+
+ # GhostScript call to produce bitmaps
+ gs_call = '%s -dNOPAUSE -dBATCH -dSAFER -sDEVICE=%s ' \
+ '-sOutputFile="%s%%d.%s" ' \
+ '-dGraphicsAlphaBit=%d -dTextAlphaBits=%d ' \
+ '-r%f "%s"' \
+ % (gs, gs_device, latex_file_re.sub("", pdf_latex_file), \
+ gs_ext, alpha, alpha, resolution, pdf_file)
+
+ gs_status, gs_stdout = run_command(gs_call)
+ if gs_status != None:
+ # Give up!
+ warning("Some pages failed with all the possible routes")
else:
- os.remove(file)
+ # We've done it!
+ pdf_log_file = latex_file_re.sub(".log", pdf_latex_file)
+ pdf_metrics = legacy_extract_metrics_info(pdf_log_file)
+
+ original_bitmap = latex_file_re.sub("%d." + output_format, pdf_latex_file)
+ destination_bitmap = latex_file_re.sub("%d." + output_format, latex_file)
+
+ # Join the metrics with the those from dvips and rename the bitmap images
+ join_metrics_and_rename(legacy_metrics, pdf_metrics, failed_pages, original_bitmap, destination_bitmap)
# Crop the images
if pnmcrop != None:
if not skipMetrics:
# Extract metrics info from the log file.
metrics_file = latex_file_re.sub(".metrics", latex_file)
- write_metrics_info(legacy_extract_metrics_info(log_file), metrics_file)
+ write_metrics_info(legacy_metrics, metrics_file)
- return 0
+ return (0, legacy_metrics)
if __name__ == "__main__":
- legacy_conversion(sys.argv)
+ exit(legacy_conversion(sys.argv)[0])
import glob, os, re, string, sys
from legacy_lyxpreview2ppm import legacy_conversion, \
- legacy_conversion_step2, legacy_extract_metrics_info
-
+ legacy_conversion_step2, legacy_extract_metrics_info, filter_pages
+
from lyxpreview_tools import copyfileobj, error, find_exe, \
find_exe_or_terminate, make_texcolor, mkstemp, run_command, warning, \
- write_metrics_info
+ write_metrics_info, join_metrics_and_rename
# Pre-compiled regular expressions.
if frac < 0:
frac = 0.5
- results.append((page, frac))
+ results.append((int(page), frac))
pos = match.end() + 2
if success == 0:
# The dvi output file name
dvi_file = latex_file_re.sub(".dvi", latex_file)
+ # latex failed
+ # FIXME: try with pdflatex
+ if not os.path.isfile(dvi_file):
+ error("No DVI output.")
+
# Check for PostScript specials in the dvi, badly supported by dvipng
# This is required for correct rendering of PSTricks and TikZ
dv2dt = find_exe_or_terminate(["dv2dt"], path)
page_has_ps = True
pages_parameter = ""
+
if len(ps_pages) == page_index:
# All pages need PostScript, so directly use the legacy method.
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
+ dvipng_metrics = []
if len(ps_pages) > 0:
# Some pages require PostScript.
# Create a new LaTeX file just for the snippets needing
# the legacy method
- original_latex = open(latex_file, "r")
legacy_latex_file = latex_file_re.sub("_legacy.tex", latex_file)
- legacy_latex = open(legacy_latex_file, "w")
-
- page_index = 0
- skip_page = False
- for line in original_latex:
- if line.startswith("\\begin{preview}"):
- page_index += 1
- # Skips all pages processed by dvipng
- skip_page = page_index not in ps_pages
-
- if not skip_page:
- legacy_latex.write(line)
-
- if line.startswith("\\end{preview}"):
- skip_page = False
-
- legacy_latex.close()
- original_latex.close()
+ filter_pages(latex_file, legacy_latex_file, ps_pages)
# Pass the new LaTeX file to the legacy method
vec = [ argv[0], latex_file_re.sub("_legacy.tex", argv[2]), \
argv[3], argv[1], argv[4], argv[5], latex ]
- legacy_conversion(vec, True)
-
+ legacy_metrics = legacy_conversion(vec, True)[1]
+
# Now we need to mix metrics data from dvipng and the legacy method
metrics_file = latex_file_re.sub(".metrics", latex_file)
-
dvipng_metrics = extract_metrics_info(dvipng_stdout)
- legacy_metrics = legacy_extract_metrics_info(latex_file_re.sub("_legacy.log", latex_file))
+
+ original_bitmap = latex_file_re.sub("%d." + output_format, legacy_latex_file)
+ destination_bitmap = latex_file_re.sub("%d." + output_format, latex_file)
- # Check whether a page is present in dvipng_metrics, otherwise
- # add it getting the metrics from legacy_metrics
- legacy_index = -1;
- for i in range(page_index):
- # If we exceed the array bounds or the dvipng_metrics doesn't
- # match the current one, this page belongs to the legacy method
- if (i > len(dvipng_metrics) - 1) or (dvipng_metrics[i][0] != str(i + 1)):
- legacy_index += 1
-
- # Add this metric from the legacy output
- dvipng_metrics.insert(i, (str(i + 1), legacy_metrics[legacy_index][1]))
- # Legacy output filename
- legacy_output = os.path.join(dir, latex_file_re.sub("_legacy%s.%s" %
- (legacy_metrics[legacy_index][0], output_format), latex_file))
-
- # Check whether legacy method actually created the file
- if os.path.isfile(legacy_output):
- # Rename the file by removing the "_legacy" suffix
- # and adjusting the index
- bitmap_output = os.path.join(dir, latex_file_re.sub("%s.%s" %
- (str(i + 1), output_format), latex_file))
- os.rename(legacy_output, bitmap_output)
-
- # Actually create the .metrics file
- write_metrics_info(dvipng_metrics, metrics_file)
+ # Join metrics from dvipng and legacy, and rename legacy bitmaps
+ join_metrics_and_rename(dvipng_metrics, legacy_metrics, ps_pages,
+ original_bitmap, destination_bitmap)
+
else:
# Extract metrics info from dvipng_stdout.
# In this case we just used dvipng, so no special metrics
# handling is needed.
metrics_file = latex_file_re.sub(".metrics", latex_file)
- write_metrics_info(extract_metrics_info(dvipng_stdout), metrics_file)
+ dvipng_metrics = extract_metrics_info(dvipng_stdout)
# Convert images to ppm format if necessary.
if output_format == "ppm":
convert_to_ppm_format(pngtopnm, latex_file_re.sub("", latex_file))
- return 0
-
+ # Actually create the .metrics file
+ write_metrics_info(dvipng_metrics, metrics_file)
+
+ return (0, dvipng_metrics)
if __name__ == "__main__":
- main(sys.argv)
+ exit(main(sys.argv)[0])
for metric in metrics_info:
metrics.write("Snippet %s %f\n" % metric)
metrics.close()
+
+# Reads a .tex files and create an identical file but only with
+# pages whose index is in pages_to_keep
+def filter_pages(source_path, destination_path, pages_to_keep):
+ source_file = open(source_path, "r")
+ destination_file = open(destination_path, "w")
+
+ page_index = 0
+ skip_page = False
+ for line in source_file:
+ # We found a new page
+ if line.startswith("\\begin{preview}"):
+ page_index += 1
+ # If the page index isn't in pages_to_keep we don't copy it
+ skip_page = page_index not in pages_to_keep
+
+ if not skip_page:
+ destination_file.write(line)
+
+ # End of a page, we reset the skip_page bool
+ if line.startswith("\\end{preview}"):
+ skip_page = False
+
+ destination_file.close()
+ source_file.close()
+
+# Joins two metrics list, that is a list of tuple (page_index, metric)
+# new_page_indexes contains the original page number of the pages in new_metrics
+# e.g. new_page_indexes[3] == 14 means that the 4th item in new_metrics is the 15th in the original counting
+# original_bitmap and destination_bitmap are file name models used to rename the new files
+# e.g. image_new%d.png and image_%d.png
+def join_metrics_and_rename(original_metrics, new_metrics, new_page_indexes, original_bitmap, destination_bitmap):
+ legacy_index = 0
+ for (index, metric) in new_metrics:
+ # If the file exists we rename it
+ if os.path.isfile(original_bitmap % (index)):
+ os.rename(original_bitmap % (index), destination_bitmap % new_page_indexes[index-1])
+
+ # Extract the original page index
+ index = new_page_indexes[index-1]
+ # Goes through the array until the end is reached or the correct index is found
+ while legacy_index < len(original_metrics) and original_metrics[legacy_index][0] < index:
+ legacy_index += 1
+
+
+ # Add or update the metric for this page
+ if legacy_index < len(original_metrics) and original_metrics[legacy_index][0] == index:
+ original_metrics[legacy_index] = (index, metric)
+ else:
+ original_metrics.insert(legacy_index, (index, metric))
#include "LyXRC.h"
#include "output.h"
#include "OutputParams.h"
-#include "PDFOptions.h"
#include "TexRow.h"
#include "frontends/Application.h" // hexName
// FIXME what about LuaTeX?
if (buffer_.params().useNonTeXFonts)
cs << " xelatex";
- // DVI output fails sometimes with hyperref
- // (probably a preview-latex/hyperref bug)
- else if (buffer_.params().pdfoptions().use_hyperref)
- cs << " pdflatex";
string const command = libScriptSearch(cs.str());
projects / features.git / commitdiff