use extended Group instead of property

Author: FoamyGuy

adafruit_button.py

@@ -100,14 +100,13 @@ def __init__(
         selected_outline=None,
         selected_label=None
     ):
-        super().__init__()
+        super().__init__(x=x, y=y)
         self.x = x
         self.y = y
         self.width = width
         self.height = height
         self._font = label_font
         self._selected = False
-        self.group = displayio.Group()
         self.name = name
         self._label = label
         self.body = self.fill = self.shadow = None
@@ -129,17 +128,17 @@ def __init__(
         if (outline_color is not None) or (fill_color is not None):
             if style == Button.RECT:
                 self.body = Rect(
-                    x,
-                    y,
+                    0,
+                    0,
                     width,
                     height,
                     fill=self.fill_color,
                     outline=self.outline_color,
                 )
             elif style == Button.ROUNDRECT:
                 self.body = RoundRect(
-                    x,
-                    y,
+                    0,
+                    0,
                     width,
                     height,
                     r=10,
@@ -148,32 +147,32 @@ def __init__(
                 )
             elif style == Button.SHADOWRECT:
                 self.shadow = Rect(
-                    x + 2, y + 2, width - 2, height - 2, fill=outline_color
+                    0 + 2, 0 + 2, width - 2, height - 2, fill=outline_color
                 )
                 self.body = Rect(
-                    x,
-                    y,
+                    0,
+                    0,
                     width - 2,
                     height - 2,
                     fill=self.fill_color,
                     outline=self.outline_color,
                 )
             elif style == Button.SHADOWROUNDRECT:
                 self.shadow = RoundRect(
-                    x + 2, y + 2, width - 2, height - 2, r=10, fill=self.outline_color
+                    0 + 2, 0 + 2, width - 2, height - 2, r=10, fill=self.outline_color
                 )
                 self.body = RoundRect(
-                    x,
-                    y,
+                    0,
+                    0,
                     width - 2,
                     height - 2,
                     r=10,
                     fill=self.fill_color,
                     outline=self.outline_color,
                 )
             if self.shadow:
-                self.group.append(self.shadow)
-            self.group.append(self.body)
+                self.append(self.shadow)
+            self.append(self.body)
 
         self.label = label
 
@@ -184,8 +183,8 @@ def label(self):
 
     @label.setter
     def label(self, newtext):
-        if self._label and self.group and (self.group[-1] == self._label):
-            self.group.pop()
+        if self._label and self and (self[-1] == self._label):
+            self.pop()
 
         self._label = None
         if not newtext or (self._label_color is None):  # no new text
@@ -197,10 +196,10 @@ def label(self, newtext):
         dims = self._label.bounding_box
         if dims[2] >= self.width or dims[3] >= self.height:
             raise RuntimeError("Button not large enough for label")
-        self._label.x = self.x + (self.width - dims[2]) // 2
-        self._label.y = self.y + self.height // 2
+        self._label.x = 0 + (self.width - dims[2]) // 2
+        self._label.y = 0 + self.height // 2
         self._label.color = self._label_color
-        self.group.append(self._label)
+        self.append(self._label)
 
         if (self.selected_label is None) and (self._label_color is not None):
             self.selected_label = (~self._label_color) & 0xFFFFFF