Update docs and pylint fixes

Author: Kevin Matocha

displayio_scrollbox.py

@@ -25,7 +25,14 @@
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
-# autodoc_mock_imports = ["digitalio", "busio"]
+autodoc_mock_imports = [
+    "displayio",
+    "fontio",
+    "terminalio",
+    "bitmaptools",
+    "adafruit_display_text",
+    "adafruit_displayio_layout",
+]
 
 
 intersphinx_mapping = {

docs/conf.py

@@ -3,75 +3,68 @@
 
 # Example demonstrating the CircuitPython ScrollBox widget for vertical scrolling of text.
 
-import displayio_scrollbox
-
-import gc
 import board
+import math
 import time
-import displayio
-import fontio
 import terminalio
 
-from adafruit_bitmap_font import bitmap_font
-
-import math
+import displayio_scrollbox
 
-display=board.DISPLAY
+display = board.DISPLAY
 
 text_string = "CircuitPython is a programming language designed to simplify experimenting and learning to code on low-cost microcontroller boards."
-text_string = text_string+("\n\nWith CircuitPython, there are no upfront desktop downloads needed. Once you get your board set up, open any text editor, and start editing code. It's that simple.")
+text_string = text_string + (
+    "\n\nWith CircuitPython, there are no upfront desktop downloads needed. Once you get your board set up, open any text editor, and start editing code. It's that simple."
+)
 # text_string = text_string+("\n\nCreate a file, edit your code, save the file, and it runs immediately. There is no compiling or uploading needed.")
 # text_string = text_string+("\n\nCircuitPython is designed with education in mind. It's an easy way to start learning how to code and you get immediate feedback from the board.")
 
-
 ## Base example uses the builtin monospace font: terminalio.FONT
 font = terminalio.FONT
 
 # Initialize the scroll box
-my_scroll_box = displayio_scrollbox.ScrollBox(display=display,
-                          x=20, y=20,
-                          width=150, height=100,
-                          text=text_string,
-                          starting_row=0,
-                          font=font,
-                          background_color=0x333333,
-                          animation_time=1.2,
-                          x_offset=5,
-                          y_offset=5,
-                          )
+my_scroll_box = displayio_scrollbox.ScrollBox(
+    display=display,
+    x=20,
+    y=20,
+    width=150,
+    height=100,
+    text=text_string,
+    starting_row=0,
+    font=font,
+    background_color=0x333333,
+    animation_time=1.2,
+    x_offset=5,
+    y_offset=5,
+)
 
 # Set the x and y positions of the ScrollBox
-my_scroll_box.x=(display.width - my_scroll_box.width)//2
-my_scroll_box.y=(display.height - my_scroll_box.height)//2
+my_scroll_box.x = (display.width - my_scroll_box.width) // 2
+my_scroll_box.y = (display.height - my_scroll_box.height) // 2
 
 
 # Set the number of scrolling rows and number of steps based on the ScrollBox dimensions
 move_rows = my_scroll_box.height - 10
-steps = math.floor(my_scroll_box.max_row/move_rows)
-sleep_time=0.8
+steps = math.floor(my_scroll_box.max_row / move_rows)
+sleep_time = 0.8
 
 # Add the ScrollBox to the display
 display.show(my_scroll_box)
 
-while True:    
+while True:
 
     for i in range(steps):
         # Scroll up by the "move_rows" number of pixels
         my_scroll_box.scroll(ypixels=+move_rows)
         time.sleep(sleep_time)
 
-    time.sleep(2*sleep_time)
+    time.sleep(2 * sleep_time)
+
+    my_scroll_box.text = "This is a shorter line now"
 
     for i in range(steps):
         # Scroll down by the "move_rows" number of pixels
         my_scroll_box.scroll(ypixels=-move_rows)
         time.sleep(sleep_time)
 
-    time.sleep(2*sleep_time)
-    
-
-
-
-
-
-
+    time.sleep(2 * sleep_time)