Merge pull request #232 from FoamyGuy/text_box_fix_tilegrid_prop

fix TextBox.text setter & Add tilegrid property to BitmapLabel

Author: FoamyGuy

adafruit_display_text/bitmap_label.py

@@ -1057,3 +1057,10 @@ def text(self):
     def text(self, new_text):
         self.full_text = new_text
         self.update(True)
+
+    @property
+    def tilegrid(self) -> displayio.TileGrid:
+        """
+        The TileGrid that contains the Bitmap for this Label.
+        """
+        return self._tilegrid

adafruit_display_text/text_box.py

@@ -383,11 +383,11 @@ def text(self, text: str) -> None:
         self.lines = wrap_text_to_pixels(
             text, self._width - self._padding_left - self._padding_right, self.font
         )
-        self._text = self._replace_tabs(text)
-        self._original_text = self._text
-        self._text = "\n".join(self.lines)
+        self._full_text = self._replace_tabs(text)
+        self._original_text = self._full_text
+        self._full_text = "\n".join(self.lines)
 
-        self._set_text(self._text, self.scale)
+        self._set_text(self._full_text, self.scale)
 
     @property
     def align(self):