# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

"""Simple test script for 4.2" 400x300 tri-color displays.

Supported products:
  * WaveShare 4.2" Color
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper-b.htm
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper-c.htm
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper-module-c.htm
    * https://www.waveshare.com/product/modules/oleds-lcds/e-paper/4.2inch-e-paper-module-b.htm
"""

import time

import board
import displayio
from fourwire import FourWire

import adafruit_il0398

displayio.release_displays()

# This pinout works on a Feather M4 and may need to be altered for other boards.
spi = board.SPI()  # Uses SCK and MOSI
epd_cs = board.D9
epd_dc = board.D10
epd_reset = board.D5
epd_busy = board.D6

display_bus = FourWire(spi, command=epd_dc, chip_select=epd_cs, reset=epd_reset, baudrate=1000000)
time.sleep(1)

display = adafruit_il0398.IL0398(
    display_bus,
    width=400,
    height=300,
    seconds_per_frame=20,
    highlight_color=0xFF0000,
    busy_pin=epd_busy,
)

g = displayio.Group()

pic = displayio.OnDiskBitmap("/display-ruler.bmp")
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

display.root_group = g

display.refresh()

time.sleep(120)