Merge pull request #13 from makermelissa/master

Changed button to subclass of Group

Author: ladyada

adafruit_button.py

@@ -56,7 +56,7 @@ def _check_color(color):
     return color
 
 
-class Button():
+class Button(displayio.Group):
     # pylint: disable=too-many-instance-attributes, too-many-locals
     """Helper class for creating UI buttons for ``displayio``.
 
@@ -87,6 +87,7 @@ def __init__(self, *, x, y, width, height, name=None, style=RECT,
                  label=None, label_font=None, label_color=0x0,
                  selected_fill=None, selected_outline=None,
                  selected_label=None):
+        super().__init__()
         self.x = x
         self.y = y
         self.width = width
@@ -135,10 +136,6 @@ def __init__(self, *, x, y, width, height, name=None, style=RECT,
 
         self.label = label
 
-        # else: # ok just a bounding box
-        # self.bodyshape = displayio.Shape(width, height)
-        # self.group.append(self.bodyshape)
-
     @property
     def label(self):
         """The text label of the button"""