Introduce a _create_label_group method to reduce code duplication.

This method can be used to reduce code duplication in several areas
of the library, and introduces common shared defaults such as black
for the font color.

Author: nnja

adafruit_pybadger.py

@@ -141,6 +141,21 @@ def __init__(self, i2c=None, *, pixels_brightness=1.0):
         self._sine_wave = None
         self._sine_wave_sample = None
 
+    def _create_label_group(self, text, font, scale, height_adjustment, color=0xFFFFFF, width_adjustment=2, line_spacing=0.75):
+        """Create a label group with the given text, font, scale, and spacing."""
+        # If the given font is a string, treat it as a file path and try to load it
+        if isinstance(font, str):
+            font = load_font(font)
+
+        group = displayio.Group(scale=scale)
+        label = Label(font, text=text, line_spacing=line_spacing)
+        _, _, width, _ = label.bounding_box
+        label.x = ((self.display.width // (width_adjustment * scale)) - width // 2)
+        label.y = int(self.display.height * (height_adjustment / scale))
+        label.color = color
+        group.append(label)
+        return group
+
     def _check_for_movement(self, movement_threshold=10):
         """Checks to see if board is moving. Used to auto-dim display when not moving."""
         current_accelerometer = self.acceleration