Merge pull request #7 from prcutler/root-group-fix

Update with display.root_group for CircuitPython 9 compatibility

Author: FoamyGuy

README.rst

@@ -121,7 +121,7 @@ Usage Example
     epd_reset = board.D11
     epd_busy = board.D12
 
-    display_bus = displayio.FourWire(
+    display_bus = fourwire.FourWire(
         spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
     )
 
@@ -138,7 +138,7 @@ Usage Example
         t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
         g.append(t)
 
-        display.show(g)
+        display.root_group = g
 
         display.refresh()
 

adafruit_spd1656.py

@@ -23,7 +23,7 @@
 
 import struct
 
-import displayio
+import epaperdisplay
 
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_SPD1656.git"
@@ -48,7 +48,7 @@
 
 
 # pylint: disable=too-few-public-methods
-class SPD1656(displayio.EPaperDisplay):
+class SPD1656(epaperdisplay.EPaperDisplay):
     r"""SPD1656 display driver
 
     :param bus: The data bus the display is on

docs/conf.py

@@ -27,7 +27,7 @@
 # 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 = ["epaperdisplay"]
 
 autodoc_preserve_defaults = True
 

examples/spd1656_4in_acep.py

@@ -11,8 +11,10 @@
 import time
 import board
 import displayio
+import fourwire
 import adafruit_spd1656
 
+
 displayio.release_displays()
 
 # This pinout works on a Feather RP2040 and may need to be altered for other boards.
@@ -22,7 +24,7 @@
 epd_reset = board.D11
 epd_busy = board.D12
 
-display_bus = displayio.FourWire(
+display_bus = fourwire.FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 
@@ -39,7 +41,7 @@
     t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
     g.append(t)
 
-    display.show(g)
+    display.root_group = g
 
     display.refresh()
 

examples/spd1656_color_stripes.py

@@ -10,8 +10,10 @@
 import board
 import displayio
 import bitmaptools
+import fourwire
 import adafruit_spd1656
 
+
 displayio.release_displays()
 
 # This pinout works on a Feather RP2040 and may need to be altered for other boards.
@@ -21,7 +23,7 @@
 epd_reset = board.D11
 epd_busy = board.D12
 
-display_bus = displayio.FourWire(
+display_bus = fourwire.FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 
@@ -56,7 +58,7 @@
 tg = displayio.TileGrid(bitmap=bmp, pixel_shader=p)
 g.append(tg)
 
-display.show(g)
+display.root_group = g
 
 display.refresh()
 

examples/spd1656_colors_and_text.py

@@ -13,8 +13,10 @@
 import terminalio
 import bitmaptools
 from adafruit_display_text.bitmap_label import Label
+import fourwire
 import adafruit_spd1656
 
+
 displayio.release_displays()
 
 # This pinout works on a Feather RP2040 and may need to be altered for other boards.
@@ -24,7 +26,7 @@
 epd_reset = board.D11
 epd_busy = board.D12
 
-display_bus = displayio.FourWire(
+display_bus = fourwire.FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 
@@ -55,7 +57,7 @@
 lbl.anchored_position = (display.width // 2, display.height // 2)
 g.append(lbl)
 
-display.show(g)
+display.root_group = g
 display.refresh()
 
 while True:

examples/spd1656_simpletest.py

@@ -10,8 +10,10 @@
 import time
 import board
 import displayio
+import fourwire
 import adafruit_spd1656
 
+
 displayio.release_displays()
 
 # This pinout works on a Feather RP2040 and may need to be altered for other boards.
@@ -21,7 +23,7 @@
 epd_reset = board.D11
 epd_busy = board.D12
 
-display_bus = displayio.FourWire(
+display_bus = fourwire.FourWire(
     spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000
 )
 
@@ -38,7 +40,7 @@
     t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
     g.append(t)
 
-    display.show(g)
+    display.root_group = g
 
     display.refresh()