MNT: ensure that defaults are cached init

tacaswell · tacaswell · commit bb37ab6fd1e2 · 2016-12-12T15:58:55.000-05:00
This appears to already be the case for all of these properties, but
remove the rcparams lookup from the get_* methods just to be sure.
diff --git a/lib/matplotlib/font_manager.py b/lib/matplotlib/font_manager.py
@@ -682,11 +682,11 @@ def __init__(self,
                  _init   = None  # used only by copy()
                  ):
         self._family = None
-        self._slant = None
-        self._variant = None
-        self._weight = None
-        self._stretch = None
-        self._size = None
+        self._slant = rcParams['font.style']
+        self._variant = rcParams['font.variant']
+        self._weight = rcParams['font.weight']
+        self._stretch = rcParams['font.stretch']
+        self._size = rcParams['font.size']
         self._file = None
 
         # This is used only by copy()
@@ -740,11 +740,6 @@ def get_family(self):
         """
         Return a list of font names that comprise the font family.
         """
-        if self._family is None:
-            family = rcParams['font.family']
-            if is_string_like(family):
-                return [family]
-            return family
         return self._family
 
     def get_name(self):
@@ -759,8 +754,6 @@ def get_style(self):
         Return the font style.  Values are: 'normal', 'italic' or
         'oblique'.
         """
-        if self._slant is None:
-            return rcParams['font.style']
         return self._slant
     get_slant = get_style
 
@@ -769,8 +762,6 @@ def get_variant(self):
         Return the font variant.  Values are: 'normal' or
         'small-caps'.
         """
-        if self._variant is None:
-            return rcParams['font.variant']
         return self._variant
 
     def get_weight(self):
@@ -780,8 +771,6 @@ def get_weight(self):
         'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold',
         'heavy', 'extra bold', 'black'
         """
-        if self._weight is None:
-            return rcParams['font.weight']
         return self._weight
 
     def get_stretch(self):
@@ -790,26 +779,16 @@ def get_stretch(self):
         'extra-condensed', 'condensed', 'semi-condensed', 'normal',
         'semi-expanded', 'expanded', 'extra-expanded', 'ultra-expanded'.
         """
-        if self._stretch is None:
-            return rcParams['font.stretch']
         return self._stretch
 
     def get_size(self):
         """
         Return the font size.
         """
-        if self._size is None:
-            return rcParams['font.size']
         return self._size
 
     def get_size_in_points(self):
-        if self._size is not None:
-            try:
-                return float(self._size)
-            except ValueError:
-                pass
-        default_size = FontManager.get_default_size()
-        return default_size * font_scalings.get(self._size)
+        return self._size
 
     def get_file(self):
         """
diff --git a/lib/matplotlib/text.py b/lib/matplotlib/text.py
@@ -355,7 +355,7 @@ def _get_layout(self, renderer):
 
         baseline = 0
         for i, line in enumerate(lines):
-            clean_line, ismath = self.is_math_text(line)
+            clean_line, ismath = self.is_math_text(line, self.get_usetex())
             if clean_line:
                 w, h, d = renderer.get_text_width_height_descent(clean_line,
                                                         self._fontproperties,
@@ -782,7 +782,7 @@ def draw(self, renderer):
                 y = y + posy
                 if renderer.flipy():
                     y = canvash - y
-                clean_line, ismath = textobj.is_math_text(line)
+                clean_line, ismath = textobj.is_math_text(line, self.get_usetex())
 
                 if textobj.get_path_effects():
                     from matplotlib.patheffects import PathEffectRenderer
@@ -1212,7 +1212,7 @@ def set_text(self, s):
         self.stale = True
 
     @staticmethod
-    def is_math_text(s):
+    def is_math_text(s, usetex=None):
         """
         Returns a cleaned string and a boolean flag.
         The flag indicates if the given string *s* contains any mathtext,
@@ -1222,7 +1222,9 @@ def is_math_text(s):
         """
         # Did we find an even number of non-escaped dollar signs?
         # If so, treat is as math text.
-        if self.get_usetex():
+        if usetex is None:
+            usetex = rcParams['text.usetex']
+        if usetex:
             if s == ' ':
                 s = r'\ '
             return s, 'TeX'
