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Merged
merged 2 commits into from
Jun 27, 2025
Merged

Use new OnDiskBitmap API #21

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3a27d03
use new OnDiskBitmap API
FoamyGuy Jun 27, 2025
bf45e79
Merge branch 'refs/heads/use_ruff_remove_8x_compat' into odb_api_update
FoamyGuy Jun 27, 2025
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19 changes: 9 additions & 10 deletions README.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -87,24 +87,23 @@ Usage Example

g = displayio.Group()

f = open("/display-ruler.bmp", "rb")

pic = displayio.OnDiskBitmap(f)
# CircuitPython 6 & 7 compatible
t = displayio.TileGrid(
pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())
)
# CircuitPython 7 compatible only
# t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
pic = displayio.OnDiskBitmap("/display-ruler.bmp")
# Create a Tilegrid with the bitmap and put in the displayio group
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

# Place the display group on the screen (does not refresh)
display.root_group = g

# Show the image on the display
display.refresh()

print("refreshed")

time.sleep(120)
# Do Not refresh the screen more often than every 180 seconds
# for eInk displays! Rapid refreshes will damage the panel.
time.sleep(180)


Documentation
=============
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39 changes: 17 additions & 22 deletions examples/il91874_simpletest.py
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Expand Up @@ -47,25 +47,20 @@
g = displayio.Group()

# Display a ruler graphic from the root directory of the CIRCUITPY drive
with open("/display-ruler.bmp", "rb") as f:
pic = displayio.OnDiskBitmap(f)
# Create a Tilegrid with the bitmap and put in the displayio group
# CircuitPython 6 & 7 compatible
t = displayio.TileGrid(
pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())
)
# CircuitPython 7 compatible only
# t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

# Place the display group on the screen (does not refresh)
display.root_group = g

# Show the image on the display
display.refresh()

print("refreshed")

# Do Not refresh the screen more often than every 180 seconds
# for eInk displays! Rapid refreshes will damage the panel.
time.sleep(180)

pic = displayio.OnDiskBitmap("/display-ruler.bmp")
# Create a Tilegrid with the bitmap and put in the displayio group
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

# Place the display group on the screen (does not refresh)
display.root_group = g

# Show the image on the display
display.refresh()

print("refreshed")

# Do Not refresh the screen more often than every 180 seconds
# for eInk displays! Rapid refreshes will damage the panel.
time.sleep(180)