Add support for pgf.documentclass rcParam

MiniX16 · MiniX16 · commit 23e0b0cf4a04 · 2025-05-22T22:23:59.000+02:00
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -958,6 +958,7 @@ def rc_params_from_file(fname, fail_on_error=False, use_default_template=True):
     # Strip leading comment.
     transform=lambda line: line[1:] if line.startswith("#") else line,
     fail_on_error=True)
+rcParamsDefault["pgf.documentclass"] = "article"
 rcParamsDefault._update_raw(rcsetup._hardcoded_defaults)
 rcParamsDefault._ensure_has_backend()
 
diff --git a/lib/matplotlib/backends/backend_pgf.py b/lib/matplotlib/backends/backend_pgf.py
@@ -29,7 +29,9 @@
 _log = logging.getLogger(__name__)
 
 
-_DOCUMENTCLASS = r"\documentclass{article}"
+_DOCUMENTCLASS = (
+    rf"\documentclass{{{mpl.rcParams.get('pgf.documentclass', 'article')}}}"
+)
 
 
 # Note: When formatting floating point values, it is important to use the
diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
@@ -1336,6 +1336,7 @@ def _convert_validator_spec(key, conv):
     "pgf.texsystem": ["xelatex", "lualatex", "pdflatex"],  # latex variant used
     "pgf.rcfonts":   validate_bool,  # use mpl's rc settings for font config
     "pgf.preamble":  validate_string,  # custom LaTeX preamble
+    "pgf.documentclass": validate_string,  # LaTeX document class used by PGF backend
 
     # write raster image data into the svg file
     "svg.image_inline": validate_bool,
