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Allow previewing images generated through postscript specials which are

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not correctly handled by dvipng. When a ps special is detected in the dvi
file, the old good legacy method is used. Patch from Ale.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36685 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri 2010-12-03 17:37:38 +00:00
parent 69b228f9af
commit 32ea5966c5
2 changed files with 36 additions and 2 deletions
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19
lib/scripts/lyxpreview-lytex2bitmap.py
View File

@ -222,8 +222,25 @@ def main(argv):
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# Run the dvi file through dvipng.
# The dvi output file name
dvi_file = latex_file_re.sub(".dvi", latex_file)
# 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)
dv2dt_call = '%s %s' % (dv2dt, dvi_file)
# The output from dv2dt goes to stdout
dv2dt_status, dv2dt_output = run_command(dv2dt_call)
psliteral_re = re.compile("^special[1-4] [0-9]+ '(\"|ps:)")
for dtl_line in dv2dt_output.split("\n"):
if psliteral_re.match(dtl_line) != None:
# Literal PostScript special detected!
# Fallback to legacy conversion
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
return legacy_conversion(vec)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" "%s"' \
% (dvipng, dpi, fg_color, bg_color, dvi_file)

19
lib/scripts/lyxpreview2bitmap.py
View File

@ -207,8 +207,25 @@ def main(argv):
# FIXME: skip unnecessary dvips trial in legacy_conversion_step2
return legacy_conversion_step2(latex_file, dpi, output_format)
# Run the dvi file through dvipng.
# The dvi output file name
dvi_file = latex_file_re.sub(".dvi", latex_file)
# 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)
dv2dt_call = '%s %s' % (dv2dt, dvi_file)
# The output from dv2dt goes to stdout
dv2dt_status, dv2dt_output = run_command(dv2dt_call)
psliteral_re = re.compile("^special[1-4] [0-9]+ '(\"|ps:)")
for dtl_line in dv2dt_output.split("\n"):
if psliteral_re.match(dtl_line) != None:
# Literal PostScript special detected!
# Fallback to legacy conversion
vec = [argv[0], argv[2], argv[3], argv[1], argv[4], argv[5], latex]
return legacy_conversion(vec)
# Run the dvi file through dvipng.
dvipng_call = '%s -Ttight -depth -height -D %d -fg "%s" -bg "%s" "%s"' \
% (dvipng, dpi, fg_color, bg_color, dvi_file)