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Correctly set temporary pdf/pgf backends #27869

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Merged
merged 1 commit into from
Mar 6, 2024
Merged

Correctly set temporary pdf/pgf backends #27869

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3 changes: 1 addition & 2 deletions lib/matplotlib/backends/backend_pdf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2755,8 +2755,7 @@ def savefig(self, figure=None, **kwargs):
raise ValueError(f"No figure {figure}")
figure = manager.canvas.figure
# Force use of pdf backend, as PdfPages is tightly coupled with it.
with cbook._setattr_cm(figure, canvas=FigureCanvasPdf(figure)):
figure.savefig(self, format="pdf", **kwargs)
figure.savefig(self, format="pdf", backend="pdf", **kwargs)

def get_pagecount(self):
"""Return the current number of pages in the multipage pdf file."""
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39 changes: 19 additions & 20 deletions lib/matplotlib/backends/backend_pgf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -987,26 +987,25 @@ def savefig(self, figure=None, **kwargs):
raise ValueError(f"No figure {figure}")
figure = manager.canvas.figure

with cbook._setattr_cm(figure, canvas=FigureCanvasPgf(figure)):
width, height = figure.get_size_inches()
if self._n_figures == 0:
self._write_header(width, height)
else:
# \pdfpagewidth and \pdfpageheight exist on pdftex, xetex, and
# luatex<0.85; they were renamed to \pagewidth and \pageheight
# on luatex>=0.85.
self._file.write(
(
r'\newpage'
r'\ifdefined\pdfpagewidth\pdfpagewidth'
fr'\else\pagewidth\fi={width}in'
r'\ifdefined\pdfpageheight\pdfpageheight'
fr'\else\pageheight\fi={height}in'
'%%\n'
).encode("ascii")
)
figure.savefig(self._file, format="pgf", **kwargs)
self._n_figures += 1
width, height = figure.get_size_inches()
if self._n_figures == 0:
self._write_header(width, height)
else:
# \pdfpagewidth and \pdfpageheight exist on pdftex, xetex, and
# luatex<0.85; they were renamed to \pagewidth and \pageheight
# on luatex>=0.85.
self._file.write(
(
r'\newpage'
r'\ifdefined\pdfpagewidth\pdfpagewidth'
fr'\else\pagewidth\fi={width}in'
r'\ifdefined\pdfpageheight\pdfpageheight'
fr'\else\pageheight\fi={height}in'
'%%\n'
).encode("ascii")
)
figure.savefig(self._file, format="pgf", backend="pgf", **kwargs)
self._n_figures += 1

def get_pagecount(self):
"""Return the current number of pages in the multipage pdf file."""
Expand Down