-#! /usr/bin/env python -tt
-# -*- coding: iso-8859-1 -*-
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
# file lyxpreview2bitmap.py
# This file is part of LyX, the document processor.
# author Angus Leeming
# with much advice from members of the preview-latex project:
# David Kastrup, dak@gnu.org and
-# Jan-Åke Larsson, jalar@mai.liu.se.
+# Jan-Åke Larsson, jalar@mai.liu.se.
# Full author contact details are available in file CREDITS
import glob, os, re, string, sys
-from legacy_lyxpreview2ppm import legacy_conversion
+from legacy_lyxpreview2ppm import legacy_conversion, \
+ legacy_conversion_step2
-from lyxpreview_tools import error, find_exe, \
- find_exe_or_terminate, run_command
+from lyxpreview_tools import copyfileobj, error, find_exe, \
+ find_exe_or_terminate, make_texcolor, mkstemp, run_command, warning
# Pre-compiled regular expressions.
-hexcolor_re = re.compile("^[0-9a-fA-F]{6}$")
latex_file_re = re.compile("\.tex$")
% prog_name
-def make_texcolor(hexcolor):
- # Test that the input string contains 6 hexadecimal chars.
- if not hexcolor_re.match(hexcolor):
- error("Cannot convert color '%s'" % hexcolor)
-
- red = float(string.atoi(hexcolor[0:2], 16)) / 255.0
- green = float(string.atoi(hexcolor[2:4], 16)) / 255.0
- blue = float(string.atoi(hexcolor[4:6], 16)) / 255.0
-
- return "rgb %f %f %f" % (red, green, blue)
-
-
def extract_metrics_info(dvipng_stdout, metrics_file):
metrics = open(metrics_file, 'w')
# "\[[0-9]+" can match two kinds of numbers: page numbers from dvipng
return success
+def color_pdf(latex_file, bg_color):
+ use_preview_pdf_re = re.compile("(\s*\\\\usepackage\[[^]]+)(pdftex\]{preview})")
+
+ tmp = mkstemp()
+
+ success = 0
+ try:
+ for line in open(latex_file, 'r').readlines():
+ 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, match.group()))
+ continue
+
+ except:
+ # Unable to open the file, but do nothing here because
+ # the calling function will act on the value of 'success'.
+ warning('Warning in color_pdf! Unable to open "%s"' % latex_file)
+ warning(`sys.exc_type` + ',' + `sys.exc_value`)
+
+ if success:
+ copyfileobj(tmp, open(latex_file,"wb"), 1)
+
+ return success
+
+
def convert_to_ppm_format(pngtopnm, basename):
png_file_re = re.compile("\.png$")
os.chdir(dir)
dpi = string.atoi(argv[3])
- fg_color = make_texcolor(argv[4])
- bg_color = make_texcolor(argv[5])
+ fg_color = make_texcolor(argv[4], False)
+ bg_color = make_texcolor(argv[5], False)
+
+ bg_color_gr = make_texcolor(argv[5], True)
# External programs used by the script.
path = string.split(os.environ["PATH"], os.pathsep)
- latex = find_exe_or_terminate(["pplatex", "latex2e", "latex"], path)
+ latex = find_exe_or_terminate(["latex", "pplatex", "platex", "latex2e"], path)
# This can go once dvipng becomes widespread.
dvipng = find_exe(["dvipng"], path)
if dvipng == None:
- if output_format == "ppm":
- # The data is input to legacy_conversion in as similar
- # as possible a manner to that input to the code used in
- # LyX 1.3.x.
- vec = [ argv[0], argv[2], argv[3], argv[1], argv[4], argv[5] ]
- return legacy_conversion(vec)
- else:
- error("The old 'dvi->ps->ppm' conversion requires "
- "ppm as the output format")
+ # The data is input to legacy_conversion in as similar
+ # as possible a manner to that input to the code used in
+ # LyX 1.3.x.
+ vec = [ argv[0], argv[2], argv[3], argv[1], argv[4], argv[5] ]
+ return legacy_conversion(vec)
pngtopnm = ""
if output_format == "ppm":
pngtopnm = find_exe_or_terminate(["pngtopnm"], path)
+ # Move color information for PDF into the latex file.
+ if not color_pdf(latex_file, bg_color_gr):
+ error("Unable to move color info into the latex file")
+
# Compile the latex file.
latex_call = '%s "%s"' % (latex, latex_file)
latex_status, latex_stdout = run_command(latex_call)
if latex_status != None:
- error("%s failed to compile %s" \
+ warning("%s failed to compile %s" \
% (os.path.basename(latex), latex_file))
# Run the dvi file through dvipng.
dvipng_status, dvipng_stdout = run_command(dvipng_call)
if dvipng_status != None:
- error("%s failed to generate images from %s" \
+ warning("%s failed to generate images from %s ... looking for PDF" \
% (os.path.basename(dvipng), dvi_file))
+ return legacy_conversion_step2(latex_file, dpi, output_format)
# Extract metrics info from dvipng_stdout.
metrics_file = latex_file_re.sub(".metrics", latex_file)