Bracket each call to new_gc() by a corresponding call to gc.restore() to avoid

bugs in the Cairo and Mac OS X backends.

svn path=/trunk/matplotlib/; revision=7969

Author: mdehoon

lib/matplotlib/patheffects.py

@@ -119,6 +119,7 @@ def draw_path(self, renderer, gc, tpath, affine, rgbFace):
 
         gc0 = self._update_gc(gc0, self._gc)
         renderer.draw_path(gc0, tpath, affine, None)
+        gc0.restore()
 
 
 class withStroke(Stroke):
@@ -183,6 +184,7 @@ def draw_path(self, renderer, gc, tpath, affine, rgbFace):
 
         gc0 = self._update_gc(gc0, self._gc)
         renderer.draw_path(gc0, tpath, affine0, shadow_rgbFace)
+        gc0.restore()
 
 
 class withSimplePatchShadow(SimplePatchShadow):
@@ -198,6 +200,7 @@ def draw_path(self, renderer, gc, tpath, affine, rgbFace):
         gc1.copy_properties(gc)
         gc1.set_alpha(gc1.get_alpha()*self._patch_alpha)
         renderer.draw_path(gc1, tpath, affine, rgbFace)
+        gc1.restore()
 
 
 if __name__ == '__main__':

lib/matplotlib/text.py

@@ -590,6 +590,7 @@ def draw(self, renderer):
                 else:
                     renderer.draw_tex(gc, x, y, clean_line,
                                       self._fontproperties, angle)
+            gc.restore()
             renderer.close_group('text')
             return