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minor improvements

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Ace 2020-05-30 00:48:12 +02:00
parent 39e8da6388
commit 3b3c42cec7
1 changed files with 70 additions and 64 deletions
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134
inkycal/display/epaper.py
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@ -4,88 +4,94 @@
Inky-Calendar epaper functions Inky-Calendar epaper functions
Copyright by aceisace Copyright by aceisace
""" """
from importlib import import_module
from PIL import Image
class Display: class Display:
"""Display class for inkycal """Display class for inkycal
Handles rendering on display""" Handles rendering on display"""
_allowed_models = [] def __init__(self, epaper_model):
def __init__(self, epaper_model, supports_colour = False):
"""Load the drivers for this epaper model""" """Load the drivers for this epaper model"""
if 'colour' in epaper_model:
self.supports_colour = True
else:
self.supports_colour = False
self.supports_colour = supports_colour
try: try:
importer = 'from inkycal.display.drivers import {} as driver'.format( driver_path = 'inkycal.display.drivers.{}'.format(epaper_model)
epaper_model) driver = import_module(driver_path)
exec(importer) self._epaper = driver.EPD()
except ModuleNotFoundError: except ImportError:
raise Exception('This module is not supported. Check your spellings?') raise Exception('This module is not supported. Check your spellings?')
except FileNotFoundError: except FileNotFoundError:
raise Exception('SPI could not be found. Please check if SPI is enabled') raise Exception('SPI could not be found. Please check if SPI is enabled')
self._epaper = driver.EPD() self._epaper.init()
self._epaper.sleep()
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 def render(self, im_black, im_colour = None):
"""Render an image on the epaper
if self.supports_colour == False: im_colour is required for three-colour epapers"""
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 = self._epaper
epaper.sleep()
if self.supports_colour == False:
print('Initialising..', end = '')
epaper.init()
print('Updating display......', end = '')
epaper.display(epaper.getbuffer(im_black))
print('Done') print('Done')
def calibrate(self, cycles=3): elif self.supports_colour == True:
"""Flush display with single colour to prevent burn-ins (ghosting) if not im_colour:
cycles -> int. How many times should each colour be flushed? raise Exception('im_colour is required for coloured epaper displays')
recommended cycles = 3""" print('Initialising..', end = '')
epaper = self._epaper
epaper.init() epaper.init()
print('Updating display......', end = '')
epaper.display(epaper.getbuffer(im_black), epaper.getbuffer(im_colour))
print('Done')
white = Image.new('1', (display_width, display_height), 'white') print('Sending E-Paper to deep sleep...', end = '')
black = Image.new('1', (display_width, display_height), 'black') epaper.sleep()
print('Done')
print('----------Started calibration of ePaper display----------') def calibrate(self, cycles=3):
if self.supports_colour == True: """Flush display with single colour to prevent burn-ins (ghosting)
for _ in range(cycles): cycles -> int. How many times should each colour be flushed?
print('Calibrating...', end= ' ') recommended cycles = 3"""
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 = self._epaper
epaper.sleep() epaper.init()
white = Image.new('1', (epaper.width, epaper.height), 'white')
black = Image.new('1', (epaper.width, epaper.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, cycles))
if self.supports_colour == False:
for _ in range(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, cycles))
print('-----------Calibration complete----------')
epaper.sleep()