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Lots of minor improvements

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Switched from using bitmap images to png images for images with transparency mask (event, today, weekday). Also, using a custom processing function that processes the generated image so it can be displayed much better on the E-Paper Display.
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Ace 2019-03-04 20:22:49 +01:00 committed by GitHub
parent 214917b5f6
commit 8dd1342928
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1 changed files with 65 additions and 38 deletions
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103
Calendar/E-Paper.py
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@ -11,14 +11,13 @@ from __future__ import print_function
import calendar
from datetime import datetime, date, timedelta
from time import sleep
from settings import *
from icon_positions_locations import *
from dateutil.rrule import *
from dateutil.parser import parse
import re
from settings import *
from icon_positions_locations import *
from PIL import Image, ImageDraw, ImageFont, ImageOps
import pyowm
from ics import Calendar
@ -63,8 +62,7 @@ def main():
"""Create a blank white page, for debugging, change mode to
to 'RGB' and and save the image by uncommenting the image.save
line at the bottom"""
image = Image.new('L', (EPD_HEIGHT, EPD_WIDTH), 'white')
draw = (ImageDraw.Draw(image)).bitmap
image = Image.new('RGB', (EPD_HEIGHT, EPD_WIDTH), 'white')
"""Draw the icon with the current month's name"""
image.paste(im_open(mpath+str(time.strftime("%B")+'.jpeg')), monthplace)
@ -77,12 +75,12 @@ def main():
if (week_starts_on == "Monday"):
calendar.setfirstweekday(calendar.MONDAY)
image.paste(weekmon, weekplace)
draw(weekdaysmon[(time.strftime("%a"))], weekday)
image.paste(weekday, weekdaysmon[(time.strftime("%a"))], weekday)
if (week_starts_on == "Sunday"):
calendar.setfirstweekday(calendar.SUNDAY)
image.paste(weeksun, weekplace)
draw(weekdayssun[(time.strftime("%a"))], weekday)
image.paste(weekday, weekdayssun[(time.strftime("%a"))], weekday)
"""Using the built-in calendar function, draw icons for each
number of the month (1,2,3,...28,29,30)"""
@ -113,8 +111,8 @@ def main():
else:
x = int((box_width / 2) - (text_width / 2))
y = int((box_height / 2) - (text_height / 2))
space = Image.new('L', (box_width, box_height), color=255)
ImageDraw.Draw(space).text((x, y), text, fill=0, font=font)
space = Image.new('RGB', (box_width, box_height), color='white')
ImageDraw.Draw(space).text((x, y), text, fill='black', font=font)
image.paste(space, tuple)
""" Handling Openweathermap API"""
@ -240,14 +238,14 @@ def main():
text=text[0:-1]
text_width, text_height = font.getsize(text)
y = int((box_height / 2) - (text_height / 2))
space = Image.new('L', (box_width, box_height), color=255)
ImageDraw.Draw(space).text((0, y), text, fill=0, font=font)
space = Image.new('RGB', (box_width, box_height), color='white')
ImageDraw.Draw(space).text((0, y), text, fill='black', font=font)
image.paste(space, tuple)
"""Write event dates and names on the E-Paper"""
if len(cal) == 5:
del upcoming[6:]
for dates in range(len(upcoming)):
readable_date = datetime.strptime(upcoming[dates]['date'], '%Y %m %d').strftime('%-d %b')
write_text(70, 25, readable_date, date_positions['d'+str(dates+1)])
@ -256,7 +254,7 @@ def main():
if len(cal) == 6:
del upcoming[4:]
for dates in range(len(upcoming)):
readable_date = datetime.strptime(upcoming[dates]['date'], '%Y %m %d').strftime('%-d %b')
write_text(70, 25, readable_date, date_positions['d'+str(dates+3)])
@ -266,49 +264,78 @@ def main():
"""Draw smaller squares on days with events"""
for numbers in events_this_month:
if numbers in cal[0]:
draw(positions['a'+str(cal[0].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['a'+str(cal[0].index(numbers)+1)], eventicon)
if numbers in cal[1]:
draw(positions['b'+str(cal[1].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['b'+str(cal[1].index(numbers)+1)], eventicon)
if numbers in cal[2]:
draw(positions['c'+str(cal[2].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['c'+str(cal[2].index(numbers)+1)], eventicon)
if numbers in cal[3]:
draw(positions['d'+str(cal[3].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['d'+str(cal[3].index(numbers)+1)], eventicon)
if numbers in cal[4]:
draw(positions['e'+str(cal[4].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['e'+str(cal[4].index(numbers)+1)], eventicon)
if len(cal) == 6:
if numbers in cal[5]:
draw(positions['f'+str(cal[5].index(numbers)+1)], eventicon)
image.paste(eventicon, positions['f'+str(cal[5].index(numbers)+1)], eventicon)
"""Draw a larger square on today's date"""
today = time.day
if today in cal[0]:
draw(positions['a'+str(cal[0].index(today)+1)], dateicon)
image.paste(dateicon, positions['a'+str(cal[0].index(today)+1)], dateicon)
if today in cal[1]:
draw(positions['b'+str(cal[1].index(today)+1)], dateicon)
image.paste(dateicon, positions['b'+str(cal[1].index(today)+1)], dateicon)
if today in cal[2]:
draw(positions['c'+str(cal[2].index(today)+1)], dateicon)
image.paste(dateicon, positions['c'+str(cal[2].index(today)+1)], dateicon)
if today in cal[3]:
draw(positions['d'+str(cal[3].index(today)+1)], dateicon)
image.paste(dateicon, positions['d'+str(cal[3].index(today)+1)], dateicon)
if today in cal[4]:
draw(positions['e'+str(cal[4].index(today)+1)], dateicon)
image.paste(dateicon, positions['e'+str(cal[4].index(today)+1)], dateicon)
if len(cal) == 6:
if today in cal[5]:
draw(positions['f'+str(cal[5].index(today)+1)], dateicon)
image.paste(dateicon, positions['f'+str(cal[5].index(today)+1)], dateicon)
print('Initialising E-Paper Display')
epd.init()
sleep(5)
print('Converting image to data and sending it to the display')
print('This will take about a minute...'+'\n')
epd.display_frame(epd.get_frame_buffer(image.rotate(270, expand=1)))
# Uncomment following line to save image
#image.save(path+'test.png')
"""
The function below will take care of displaying the image correctly on E-Paper-Displays. It works by analysing
2 bands of each pixel (for example, red and green) and re-writes the values in a way so the image only contains
3 colours, without anytyhing in between. As a result, the image looks much more better on E-Paper.
Currently in beta-phase.
"""
def display_corrected_image(image):
# Uncomment following line to save the unprocessed image
# image.save(path+'before.bmp')
width, height = image.size
pixels = image.load()
# To-Do: Use lambda instead of double-loop
for x in range(width):
for y in range(height):
pixel = image.getpixel((x, y))
red = pixel[0]
green = pixel[1]
if red > 240 and green > 240: #white
pixels[x, y] = (255, 255, 255)
elif red > 250 and green < 180: #red
pixels[x, y] = (255, 0, 0)
else:
pixels[x, y] = (0, 0, 0)
# Uncomment following line to save the processed image
image.save(path+'after.bmp')
print('Initialising E-Paper Display')
epd.init()
sleep(5)
print('Converting image to data and sending it to the display')
print('This will take about a minute...'+'\n')
epd.display_frame(epd.get_frame_buffer(image.rotate(270, expand=1)))
print('Data sent successfully')
print('______Powering off the E-Paper until the next loop______'+'\n')
epd.sleep()
del image
display_improved_image(image)
del events_this_month[:]
del upcoming[:]
print('Data sent successfully')
print('______Powering off the E-Paper until the next loop______'+'\n')
epd.sleep()
for i in range(1):
nexthour = ((60 - int(time.strftime("%-M")))*60) - (int(time.strftime("%-S")))
sleep(nexthour)