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Improved snippet for fetching & displaying events

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Contains a lot of minor improvements like better output, fixing some 'crude' sections. The algorithm for fetching events has been improved (faster) and is more dynamic. Users can specify the range in days for fetching events form the future. Also fixed a bug where past events were not marked with circles on the monthly calendar. Also improved some output messages.
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Ace 2019-02-25 22:14:16 +01:00 committed by GitHub
parent fd48d75077
commit 4cc260251c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 35 additions and 35 deletions
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62
Calendar/E-Paper.py
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@ -9,7 +9,7 @@ Copyright by aceisace
""" """
from __future__ import print_function from __future__ import print_function
import calendar import calendar
from datetime import datetime from datetime import datetime, date, timedelta
from time import sleep from time import sleep
from settings import * from settings import *
@ -41,7 +41,6 @@ im_open = Image.open
"""Main loop starts from here""" """Main loop starts from here"""
def main(): def main():
while True: while True:
time = datetime.now() time = datetime.now()
hour = int(time.strftime("%-H")) hour = int(time.strftime("%-H"))
month = int(time.now().strftime('%-m')) month = int(time.now().strftime('%-m'))
@ -49,14 +48,13 @@ def main():
for i in range(1): for i in range(1):
print('_________Starting new loop___________'+'\n') print('_________Starting new loop___________'+'\n')
"""At the following hours (midnight, midday and 6 pm), perform """At the following hours (midnight, midday and 6 pm), perform
a calibration of the display's colours""" a calibration of the display's colours"""
if hour is 0 or hour is 12 or hour is 18: if hour is 0 or hour is 12 or hour is 18:
print('performing calibration for colours now')
calibration() calibration()
print('Date:', time.strftime('%a %-d %b %y')+', time: '+time.strftime('%H:%M')+'\n') print('Date:', time.strftime('%a %-d %b %y')+', Time: '+time.strftime('%H:%M')+'\n')
"""Create a blank white page, for debugging, change mode to """Create a blank white page, for debugging, change mode to
to 'RGB' and and save the image by uncommenting the image.save to 'RGB' and and save the image by uncommenting the image.save
@ -97,11 +95,9 @@ def main():
image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['d'+str(cal[3].index(numbers)+1)]) image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['d'+str(cal[3].index(numbers)+1)])
for numbers in cal[4]: for numbers in cal[4]:
image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['e'+str(cal[4].index(numbers)+1)]) image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['e'+str(cal[4].index(numbers)+1)])
try: if len(cal) == 6:
for numbers in cal[5]: for numbers in cal[5]:
image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['f'+str(cal[5].index(numbers)+1)]) image.paste(im_open(dpath+str(numbers)+'.jpeg'), positions['f'+str(cal[5].index(numbers)+1)])
except IndexError:
pass
"""Custom function to display text on the E-Paper. """Custom function to display text on the E-Paper.
Tuple refers to the x and y coordinates of the E-Paper display, Tuple refers to the x and y coordinates of the E-Paper display,
@ -190,37 +186,33 @@ def main():
print('Fetching events from your calendar'+'\n') print('Fetching events from your calendar'+'\n')
events_this_month = [] events_this_month = []
upcoming = [] upcoming = []
today = date.today()
time_span = today + timedelta(days=int(events_max_range))
for icalendars in ical_urls: for icalendars in ical_urls:
decode = str(urlopen(icalendars).read().decode()) decode = str(urlopen(icalendars).read().decode())
#fix a bug related to Alarm action by replacing parts of the icalendar
fix_e_1 = decode.replace('BEGIN:VALARM\r\nACTION:NONE','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:') fix_e_1 = decode.replace('BEGIN:VALARM\r\nACTION:NONE','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:')
fix_e_2 = fix_e_1.replace('BEGIN:VALARM\r\nACTION:EMAIL','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:') fix_e_2 = fix_e_1.replace('BEGIN:VALARM\r\nACTION:EMAIL','BEGIN:VALARM\r\nACTION:DISPLAY\r\nDESCRIPTION:')
# uncomment line below to display your calendar in ical format # uncomment line below to display your calendar in ical format
# print(fix_e_2) # print(fix_e_2)
ical = Calendar(fix_e_2) ical = Calendar(fix_e_2)
for events in ical.events: for events in ical.events:
if time.now().strftime('%-m %Y') == (events.begin).format('M YYYY') and (events.begin).format('DD') >= time.now().strftime('%d'): if events.begin.date().month == today.month:
upcoming.append({'date':events.begin.format('DD MMM'), 'event':events.name})
events_this_month.append(int((events.begin).format('D'))) events_this_month.append(int((events.begin).format('D')))
if month == 12: if today <= events.begin.date() <= time_span:
if (1, year+1) == (1, int((events.begin).year)): upcoming.append({'date':events.begin.format('YYYY MM DD'), 'event':events.name})
upcoming.append({'date':events.begin.format('DD MMM'), 'event':events.name})
if month != 12:
if (month+1, year) == (events.begin).format('M YYYY'):
upcoming.append({'date':events.begin.format('DD MMM'), 'event':events.name}) # HS sort events by date
def takeDate(elem): def takeDate(elem):
return elem['date'] return elem['date']
upcoming.sort(key=takeDate) upcoming.sort(key=takeDate)
del upcoming[4:]
# uncomment the following 2 lines to display the fetched events # uncomment the following 2 lines to display the fetched events
# from your iCalendar # from your iCalendar
print('Upcoming events:') # print('Upcoming events:')
print(upcoming) # print(upcoming)
#Credit to Hubert for suggesting truncating event names
def write_text_left(box_width, box_height, text, tuple): def write_text_left(box_width, box_height, text, tuple):
text_width, text_height = font.getsize(text) text_width, text_height = font.getsize(text)
while (text_width, text_height) > (box_width, box_height): while (text_width, text_height) > (box_width, box_height):
@ -232,12 +224,24 @@ def main():
image.paste(space, tuple) image.paste(space, tuple)
"""Write event dates and names on the E-Paper""" """Write event dates and names on the E-Paper"""
for dates in range(len(upcoming)): if len(cal) == 5:
write_text(70, 25, (upcoming[dates]['date']), date_positions['d'+str(dates+1)]) 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)])
for events in range(len(upcoming)): for events in range(len(upcoming)):
write_text_left(314, 25, (upcoming[events]['event']), event_positions['e'+str(events+1)]) write_text_left(314, 25, (upcoming[events]['event']), event_positions['e'+str(events+1)])
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)])
for events in range(len(upcoming)):
write_text_left(314, 25, (upcoming[events]['event']), event_positions['e'+str(events+3)])
"""Draw smaller squares on days with events""" """Draw smaller squares on days with events"""
for numbers in events_this_month: for numbers in events_this_month:
if numbers in cal[0]: if numbers in cal[0]:
@ -250,11 +254,9 @@ def main():
draw(positions['d'+str(cal[3].index(numbers)+1)], eventicon) draw(positions['d'+str(cal[3].index(numbers)+1)], eventicon)
if numbers in cal[4]: if numbers in cal[4]:
draw(positions['e'+str(cal[4].index(numbers)+1)], eventicon) draw(positions['e'+str(cal[4].index(numbers)+1)], eventicon)
try: if len(cal) == 6:
if numbers in cal[5]: if numbers in cal[5]:
draw(positions['f'+str(cal[5].index(numbers)+1)], eventicon) draw(positions['f'+str(cal[5].index(numbers)+1)], eventicon)
except IndexError:
pass
"""Draw a larger square on today's date""" """Draw a larger square on today's date"""
today = time.day today = time.day
@ -268,24 +270,22 @@ def main():
draw(positions['d'+str(cal[3].index(today)+1)], dateicon) draw(positions['d'+str(cal[3].index(today)+1)], dateicon)
if today in cal[4]: if today in cal[4]:
draw(positions['e'+str(cal[4].index(today)+1)], dateicon) draw(positions['e'+str(cal[4].index(today)+1)], dateicon)
try: if len(cal) == 6:
if today in cal[5]: if today in cal[5]:
draw(positions['f'+str(cal[5].index(today)+1)], dateicon) draw(positions['f'+str(cal[5].index(today)+1)], dateicon)
except IndexError:
pass
print('Initialising E-Paper Display') print('Initialising E-Paper Display')
epd.init() epd.init()
sleep(5) sleep(5)
print('Converting image to data and sending it to the display') print('Converting image to data and sending it to the display')
print('This may take a while...'+'\n') print('This will take about a minute...'+'\n')
epd.display_frame(epd.get_frame_buffer(image.rotate(270, expand=1))) epd.display_frame(epd.get_frame_buffer(image.rotate(270, expand=1)))
# Uncomment following line to save image # Uncomment following line to save image
#image.save(path+'test.png') #image.save(path+'test.png')
del events_this_month[:] del events_this_month[:]
del upcoming[:] del upcoming[:]
print('Data sent successfully') print('Data sent successfully')
print('Powering off the E-Paper until the next loop'+'\n') print('______Powering off the E-Paper until the next loop______'+'\n')
epd.sleep() epd.sleep()
for i in range(1): for i in range(1):