cairo: save a pair of ctx.save/ctx.restore.

anntzer · anntzer · commit 14d7893d138c · 2018-02-03T04:25:38.000-08:00
The removed pair of ctx.save and ctx.restore was clearly unnecessary
(the outer one is still there, and the font is reset at each loop
iteration).
diff --git a/lib/matplotlib/backends/backend_cairo.py b/lib/matplotlib/backends/backend_cairo.py
@@ -282,7 +282,6 @@ def _draw_mathtext(self, gc, x, y, s, prop, angle):
             ctx.move_to(ox, oy)
 
             fontProp = ttfFontProperty(font)
-            ctx.save()
             ctx.select_font_face(fontProp.name,
                                  self.fontangles[fontProp.style],
                                  self.fontweights[fontProp.weight])
@@ -292,7 +291,6 @@ def _draw_mathtext(self, gc, x, y, s, prop, angle):
             if not six.PY3 and isinstance(s, six.text_type):
                 s = s.encode("utf-8")
             ctx.show_text(s)
-            ctx.restore()
 
         for ox, oy, w, h in rects:
             ctx.new_path()
