92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
#!/usr/bin/python3
|
|
# -*- coding: utf-8 -*-
|
|
"""
|
|
Inky-Calendar epaper functions
|
|
Copyright by aceisace
|
|
"""
|
|
class Display:
|
|
"""Display class for inkycal
|
|
Handles rendering on display"""
|
|
|
|
_allowed_models = []
|
|
|
|
def __init__(self, epaper_model, supports_colour = False):
|
|
"""Load the drivers for this epaper model"""
|
|
|
|
self.supports_colour = supports_colour
|
|
|
|
try:
|
|
importer = 'from inkycal.display.drivers import {} as driver'.format(
|
|
epaper_model)
|
|
exec(importer)
|
|
|
|
except ModuleNotFoundError:
|
|
raise Exception('This module is not supported. Check your spellings?')
|
|
|
|
except FileNotFoundError:
|
|
raise Exception('SPI could not be found. Please check if SPI is enabled')
|
|
|
|
self._epaper = driver.EPD()
|
|
|
|
def render(self, im_black, im_colour = None):
|
|
"""Render an image on the epaper
|
|
im_colour is required for three-colour epapers"""
|
|
|
|
epaper = self._epaper
|
|
|
|
if self.supports_colour == False:
|
|
print('Initialising..', end = '')
|
|
epaper.init()
|
|
print('Updating display......', end = '')
|
|
epaper.display(epaper.getbuffer(im_black))
|
|
print('Done')
|
|
|
|
elif self.supports_colour == True:
|
|
if not im_colour:
|
|
raise Exception('im_colour is required for coloured epaper displays')
|
|
print('Initialising..', end = '')
|
|
epaper.init()
|
|
print('Updating display......', end = '')
|
|
epaper.display(epaper.getbuffer(im_black))
|
|
print('Done')
|
|
|
|
print('Sending E-Paper to deep sleep...', end = '')
|
|
epaper.sleep()
|
|
print('Done')
|
|
|
|
def calibrate(self, cycles=3):
|
|
"""Flush display with single colour to prevent burn-ins (ghosting)
|
|
cycles -> int. How many times should each colour be flushed?
|
|
recommended cycles = 3"""
|
|
|
|
epaper = self._epaper
|
|
epaper.init()
|
|
|
|
white = Image.new('1', (display_width, display_height), 'white')
|
|
black = Image.new('1', (display_width, display_height), 'black')
|
|
|
|
print('----------Started calibration of ePaper display----------')
|
|
if self.supports_colour == True:
|
|
for _ in range(cycles):
|
|
print('Calibrating...', end= ' ')
|
|
print('black...', end= ' ')
|
|
epaper.display(epaper.getbuffer(black), epaper.getbuffer(white))
|
|
print('colour...', end = ' ')
|
|
epaper.display(epaper.getbuffer(white), epaper.getbuffer(black))
|
|
print('white...')
|
|
epaper.display(epaper.getbuffer(white), epaper.getbuffer(white))
|
|
print('Cycle {0} of {1} complete'.format(_+1, no_of_cycles))
|
|
if self.supports_colour == False:
|
|
for _ in range(no_of_cycles):
|
|
print('Calibrating...', end= ' ')
|
|
print('black...', end = ' ')
|
|
epaper.display(epaper.getbuffer(black))
|
|
print('white...')
|
|
epaper.display(epaper.getbuffer(white)),
|
|
print('Cycle {0} of {1} complete'.format(_+1, no_of_cycles))
|
|
|
|
print('-----------Calibration complete----------')
|
|
epaper.sleep()
|
|
|
|
|