Fix over-zealous caching in mathtext that causes one plot's font settings to affect the next. (This resulted in bold tick labels in log_demo.py when building the docs).

mdboom · mdboom · commit a1bdd9086070 · 2008-10-15T18:35:57.000Z
svn path=/trunk/matplotlib/; revision=6212
diff --git a/lib/matplotlib/mathtext.py b/lib/matplotlib/mathtext.py
@@ -565,8 +565,6 @@ class TruetypeFonts(Fonts):
     A generic base class for all font setups that use Truetype fonts
     (through ft2font)
     """
-    _fonts = {}
-
     class CachedFont:
         def __init__(self, font):
             self.font     = font
@@ -579,13 +577,12 @@ def __repr__(self):
 
     def __init__(self, default_font_prop, mathtext_backend):
         Fonts.__init__(self, default_font_prop, mathtext_backend)
-        self.glyphd           = {}
-
-        if self._fonts == {}:
-            filename = findfont(default_font_prop)
-            default_font = self.CachedFont(FT2Font(str(filename)))
+        self.glyphd = {}
+        self._fonts = {}
 
-            self._fonts['default'] = default_font
+        filename = findfont(default_font_prop)
+        default_font = self.CachedFont(FT2Font(str(filename)))
+        self._fonts['default'] = default_font
 
     def destroy(self):
         self.glyphd = None
