Apply hinting factor rcParam in all cases.

QuLogic · QuLogic · commit 0f4d99e723ea · 2017-10-19T15:05:45.000-04:00
This is only explicitly used in Agg, so any other users get the default
in the C++ code. Thus if you modify this setting and use some other
backend, you get very weird behaviour. Positioning sometimes breaks and
glyphs are shrunk or cropped.
diff --git a/lib/matplotlib/backends/backend_agg.py b/lib/matplotlib/backends/backend_agg.py
@@ -267,9 +267,7 @@ def _get_agg_font(self, prop):
         Get the font for text instance t, cacheing for efficiency
         """
         fname = findfont(prop)
-        font = get_font(
-            fname,
-            hinting_factor=rcParams['text.hinting_factor'])
+        font = get_font(fname)
 
         font.clear()
         size = prop.get_size_in_points()
diff --git a/lib/matplotlib/font_manager.py b/lib/matplotlib/font_manager.py
@@ -1366,7 +1366,12 @@ def is_opentype_cff_font(filename):
 _fmcache = None
 
 
-get_font = lru_cache(64)(ft2font.FT2Font)
+_get_font = lru_cache(64)(ft2font.FT2Font)
+
+def get_font(filename, hinting_factor=None):
+    if hinting_factor is None:
+        hinting_factor = rcParams['text.hinting_factor']
+    return _get_font(filename, hinting_factor)
 
 
 # The experimental fontconfig-based backend.
