DOC: move usage tutorial info to Users guide rst [skip actions] [skip azp] [skip appveyor]

Author: jklymak

lib/matplotlib/artist.py

@@ -300,7 +300,7 @@ def stale(self, val):
         if val and self.stale_callback is not None:
             self.stale_callback(self, val)
 
-    def get_window_extent(self, renderer=None):
+    def get_window_extent(self):
         """
         Get the axes bounding box in display space.
 

lib/matplotlib/collections.py

@@ -303,7 +303,7 @@ def get_datalim(self, transData):
                     return bbox
         return transforms.Bbox.null()
 
-    def get_window_extent(self, renderer=None):
+    def get_window_extent(self):
         # TODO: check to ensure that this does not fail for
         # cases other than scatter plot legend
         return self.get_datalim(transforms.IdentityTransform())

lib/matplotlib/image.py

@@ -1409,11 +1409,12 @@ def __init__(self, bbox,
         self.bbox = bbox
 
     def get_window_extent(self, renderer=None):
+        if renderer is None:
+            renderer = self.get_figure()._cachedRenderer
+
         if isinstance(self.bbox, BboxBase):
             return self.bbox
         elif callable(self.bbox):
-            if renderer is None:
-                renderer = self.get_figure()._cachedRenderer    
             return self.bbox(renderer)
         else:
             raise ValueError("Unknown type of bbox")

lib/matplotlib/lines.py

@@ -619,7 +619,7 @@ def set_picker(self, p):
             self.pickradius = p
         self._picker = p
 
-    def get_window_extent(self, renderer=None):
+    def get_window_extent(self, renderer):
         bbox = Bbox([[0, 0], [0, 0]])
         trans_data_to_xy = self.get_transform().transform
         bbox.update_from_data_xy(trans_data_to_xy(self.get_xydata()),