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Merged
tacaswell merged 1 commit into from
Jun 8, 2019
Merged

fstringify backend_ps more. #14479

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94 changes: 39 additions & 55 deletions lib/matplotlib/backends/backend_ps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -991,9 +991,9 @@ def print_figure_impl(fh):
if is_eps:
print("%!PS-Adobe-3.0 EPSF-3.0", file=fh)
else:
print("%!PS-Adobe-3.0\n"
"%%DocumentPaperSizes: {papertype}\n"
"%%Pages: 1\n".format(papertype=papertype),
print(f"%!PS-Adobe-3.0\n"
f"%%DocumentPaperSizes: {papertype}\n"
f"%%Pages: 1\n",
end="", file=fh)
if title:
print("%%Title: " + title, file=fh)
Expand All @@ -1005,13 +1005,11 @@ def print_figure_impl(fh):
int(source_date_epoch)).strftime("%a %b %d %H:%M:%S %Y")
else:
source_date = time.ctime()
print("%%Creator: {creator_str}\n"
"%%CreationDate: {source_date}\n"
"%%Orientation: {orientation}\n"
"%%BoundingBox: {bbox[0]} {bbox[1]} {bbox[2]} {bbox[3]}\n"
"%%EndComments\n"
.format(creator_str=creator_str, source_date=source_date,
orientation=orientation, bbox=bbox),
print(f"%%Creator: {creator_str}\n"
f"%%CreationDate: {source_date}\n"
f"%%Orientation: {orientation}\n"
f"%%BoundingBox: {bbox[0]} {bbox[1]} {bbox[2]} {bbox[3]}\n"
f"%%EndComments\n",
end="", file=fh)

Ndict = len(psDefs)
Expand Down Expand Up @@ -1188,51 +1186,37 @@ def write(self, *args, **kwargs):

with TemporaryDirectory() as tmpdir:
tmpfile = os.path.join(tmpdir, "tmp.ps")
with open(tmpfile, 'w', encoding='latin-1') as fh:
# write the Encapsulated PostScript headers
print("%!PS-Adobe-3.0 EPSF-3.0", file=fh)
if title:
print("%%Title: "+title, file=fh)
# get source date from SOURCE_DATE_EPOCH, if set
# See https://reproducible-builds.org/specs/source-date-epoch/
source_date_epoch = os.getenv("SOURCE_DATE_EPOCH")
if source_date_epoch:
source_date = datetime.datetime.utcfromtimestamp(
int(source_date_epoch)).strftime(
"%a %b %d %H:%M:%S %Y")
else:
source_date = time.ctime()
print(
"%%Creator: {creator_str}\n"
"%%CreationDate: {source_date}\n"
"%%BoundingBox: {bbox[0]} {bbox[1]} {bbox[2]} {bbox[3]}\n"
"%%EndComments\n"
.format(creator_str=creator_str, source_date=source_date,
bbox=bbox),
end="", file=fh)

print("%%BeginProlog\n"
"/mpldict {len_psDefs} dict def\n"
"mpldict begin\n"
"{psDefs}\n"
"end\n"
"%%EndProlog\n"
.format(len_psDefs=len(psDefs),
psDefs="\n".join(psDefs)),
end="", file=fh)

print("mpldict begin", file=fh)
print("%s translate" % _nums_to_str(xo, yo), file=fh)
print("%s clipbox" % _nums_to_str(width*72, height*72, 0, 0),
file=fh)

# write the figure
print(self._pswriter.getvalue(), file=fh)

# write the trailer
print("end", file=fh)
print("showpage", file=fh)
fh.flush()
# get source date from SOURCE_DATE_EPOCH, if set
# See https://reproducible-builds.org/specs/source-date-epoch/
source_date_epoch = os.getenv("SOURCE_DATE_EPOCH")
if source_date_epoch:
source_date = datetime.datetime.utcfromtimestamp(
int(source_date_epoch)).strftime("%a %b %d %H:%M:%S %Y")
else:
source_date = time.ctime()
pathlib.Path(tmpfile).write_text(
f"""\
%!PS-Adobe-3.0 EPSF-3.0
{f'''%%Title: {title}
''' if title else ""}\
%%Creator: {creator_str}
%%CreationDate: {source_date}
%%BoundingBox: {bbox[0]} {bbox[1]} {bbox[2]} {bbox[3]}
%%EndComments
%%BeginProlog
/mpldict {len(psDefs)} dict def
mpldict begin
{"".join(psDefs)}
end
%%EndProlog
mpldict begin
{_nums_to_str(xo, yo)} translate
{_nums_to_str(width*72, height*72)} 0 0 clipbox
{self._pswriter.getvalue()}
end
showpage
""",
encoding="latin-1")

if is_landscape: # now we are ready to rotate
is_landscape = True
Expand Down