434 lines
16 KiB
Python
Executable File
434 lines
16 KiB
Python
Executable File
"""
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Inkycal Calendar Module
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Copyright by aceinnolab
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"""
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# pylint: disable=logging-fstring-interpolation
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import calendar as cal
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import arrow
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from inkycal.modules.template import inkycal_module
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from inkycal.custom import *
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logger = logging.getLogger(__name__)
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class Calendar(inkycal_module):
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"""Calendar class
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Create monthly calendar and show events from given icalendars
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"""
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name = "Calendar - Show monthly calendar with events from iCalendars"
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optional = {
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"week_starts_on": {
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"label": "When does your week start? (default=Monday)",
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"options": ["Monday", "Sunday"],
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"default": "Monday",
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},
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"show_events": {
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"label": "Show parsed events? (default = True)",
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"options": [True, False],
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"default": True,
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},
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"ical_urls": {
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"label": "iCalendar URL/s, separate multiple ones with a comma",
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},
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"ical_files": {
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"label": "iCalendar filepaths, separated with a comma",
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},
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"date_format": {
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"label": "Use an arrow-supported token for custom date formatting "
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+ "see https://arrow.readthedocs.io/en/stable/#supported-tokens, e.g. D MMM",
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"default": "D MMM",
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},
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"time_format": {
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"label": "Use an arrow-supported token for custom time formatting "
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+ "see https://arrow.readthedocs.io/en/stable/#supported-tokens, e.g. HH:mm",
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"default": "HH:mm",
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},
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}
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def __init__(self, config):
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"""Initialize inkycal_calendar module"""
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super().__init__(config)
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config = config['config']
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self.ical = None
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self.month_events = None
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self._upcoming_events = None
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self._days_with_events = None
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# optional parameters
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self.weekstart = config['week_starts_on']
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self.show_events = config['show_events']
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self.date_format = config["date_format"]
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self.time_format = config['time_format']
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self.language = config['language']
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if config['ical_urls'] and isinstance(config['ical_urls'], str):
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self.ical_urls = config['ical_urls'].split(',')
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else:
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self.ical_urls = config['ical_urls']
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if config['ical_files'] and isinstance(config['ical_files'], str):
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self.ical_files = config['ical_files'].split(',')
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else:
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self.ical_files = config['ical_files']
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# additional configuration
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self.timezone = get_system_tz()
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self.num_font = ImageFont.truetype(
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fonts['NotoSans-SemiCondensed'], size=self.fontsize
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)
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# give an OK message
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print(f'{__name__} loaded')
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@staticmethod
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def flatten(values):
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"""Flatten the values."""
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return [x for y in values for x in y]
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def generate_image(self):
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"""Generate image for this module"""
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# Define new image size with respect to padding
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im_width = int(self.width - (2 * self.padding_left))
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im_height = int(self.height - (2 * self.padding_top))
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im_size = im_width, im_height
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events_height = 0
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logger.info(f'Image size: {im_size}')
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# Create an image for black pixels and one for coloured pixels
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im_black = Image.new('RGB', size=im_size, color='white')
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im_colour = Image.new('RGB', size=im_size, color='white')
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# Allocate space for month-names, weekdays etc.
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month_name_height = int(im_height * 0.10)
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text_bbox_height = self.font.getbbox("hg")
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weekdays_height = int((text_bbox_height[3] - text_bbox_height[1])* 1.25)
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logger.debug(f"month_name_height: {month_name_height}")
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logger.debug(f"weekdays_height: {weekdays_height}")
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if self.show_events:
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logger.debug("Allocating space for events")
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calendar_height = int(im_height * 0.6)
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events_height = (
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im_height - month_name_height - weekdays_height - calendar_height
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)
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logger.debug(f'calendar-section size: {im_width} x {calendar_height} px')
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logger.debug(f'events-section size: {im_width} x {events_height} px')
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else:
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logger.debug("Not allocating space for events")
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calendar_height = im_height - month_name_height - weekdays_height
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logger.debug(f'calendar-section size: {im_width} x {calendar_height} px')
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# Create a 7x6 grid and calculate icon sizes
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calendar_rows, calendar_cols = 6, 7
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icon_width = im_width // calendar_cols
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icon_height = calendar_height // calendar_rows
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logger.debug(f"icon_size: {icon_width}x{icon_height}px")
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# Calculate spacings for calendar area
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x_spacing_calendar = int((im_width % calendar_cols) / 2)
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y_spacing_calendar = int((im_height % calendar_rows) / 2)
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logger.debug(f"x_spacing_calendar: {x_spacing_calendar}")
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logger.debug(f"y_spacing_calendar :{y_spacing_calendar}")
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# Calculate positions for days of month
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grid_start_y = month_name_height + weekdays_height + y_spacing_calendar
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grid_start_x = x_spacing_calendar
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grid_coordinates = [
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(grid_start_x + icon_width * x, grid_start_y + icon_height * y)
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for y in range(calendar_rows)
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for x in range(calendar_cols)
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]
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weekday_pos = [
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(grid_start_x + icon_width * _, month_name_height)
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for _ in range(calendar_cols)
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]
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now = arrow.now(tz=self.timezone)
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# Set weekstart of calendar to specified weekstart
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if self.weekstart == "Monday":
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cal.setfirstweekday(cal.MONDAY)
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weekstart = now.shift(days=-now.weekday())
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else:
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cal.setfirstweekday(cal.SUNDAY)
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weekstart = now.shift(days=-now.isoweekday())
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# Write the name of current month
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write(
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im_black,
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(0, 0),
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(im_width, month_name_height),
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str(now.format('MMMM', locale=self.language)),
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font=self.font,
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autofit=True,
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)
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# Set up weeknames in local language and add to main section
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weekday_names = [
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weekstart.shift(days=+_).format('ddd', locale=self.language)
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for _ in range(7)
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]
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logger.debug(f'weekday names: {weekday_names}')
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for index, weekday in enumerate(weekday_pos):
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write(
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im_black,
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weekday,
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(icon_width, weekdays_height),
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weekday_names[index],
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font=self.font,
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autofit=True,
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fill_height=0.9,
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)
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# Create a calendar template and flatten (remove nestings)
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calendar_flat = self.flatten(cal.monthcalendar(now.year, now.month))
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# logger.debug(f" calendar_flat: {calendar_flat}")
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# Map days of month to co-ordinates of grid -> 3: (row2_x,col3_y)
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grid = {}
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for i in calendar_flat:
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if i != 0:
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grid[i] = grid_coordinates[calendar_flat.index(i)]
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# logger.debug(f"grid:{grid}")
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# remove zeros from calendar since they are not required
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calendar_flat = [num for num in calendar_flat if num != 0]
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# ensure all numbers have the same size
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fontsize_numbers = int(min(icon_width, icon_height) * 0.5)
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number_font = ImageFont.truetype(self.font.path, fontsize_numbers)
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# Add the numbers on the correct positions
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for number in calendar_flat:
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if number != int(now.day):
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write(
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im_black,
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grid[number],
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(icon_width, icon_height),
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str(number),
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font=number_font,
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)
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# Draw a red/black circle with the current day of month in white
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icon = Image.new('RGBA', (icon_width, icon_height))
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current_day_pos = grid[int(now.day)]
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x_circle, y_circle = int(icon_width / 2), int(icon_height / 2)
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radius = int(icon_width * 0.2)
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ImageDraw.Draw(icon).ellipse(
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(
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x_circle - radius,
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y_circle - radius,
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x_circle + radius,
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y_circle + radius,
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),
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fill='black',
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outline=None,
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)
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write(
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icon,
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(0, 0),
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(icon_width, icon_height),
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str(now.day),
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font=self.num_font,
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fill_height=0.5,
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colour='white',
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)
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im_colour.paste(icon, current_day_pos, icon)
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# If events should be loaded and shown...
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if self.show_events:
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# If this month requires 5 instead of 6 rows, increase event section height
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if len(cal.monthcalendar(now.year, now.month)) == 5:
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events_height += icon_height
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# If this month requires 4 instead of 6 rows, increase event section height
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elif len(cal.monthcalendar(now.year, now.month)) == 4:
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events_height += icon_height * 2
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# import the ical-parser
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# pylint: disable=import-outside-toplevel
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from inkycal.modules.ical_parser import iCalendar
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# find out how many lines can fit at max in the event section
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line_spacing = 2
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text_bbox_height = self.font.getbbox("hg")
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line_height = text_bbox_height[3] + line_spacing
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max_event_lines = events_height // (line_height + line_spacing)
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# generate list of coordinates for each line
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events_offset = im_height - events_height
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event_lines = [
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(0, events_offset + int(events_height / max_event_lines * _))
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for _ in range(max_event_lines)
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]
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# logger.debug(f"event_lines {event_lines}")
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# timeline for filtering events within this month
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month_start = arrow.get(now.floor('month'))
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month_end = arrow.get(now.ceil('month'))
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# fetch events from given icalendars
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self.ical = iCalendar()
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parser = self.ical
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if self.ical_urls:
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parser.load_url(self.ical_urls)
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if self.ical_files:
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parser.load_from_file(self.ical_files)
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# Filter events for full month (even past ones) for drawing event icons
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month_events = parser.get_events(month_start, month_end, self.timezone)
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parser.sort()
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self.month_events = month_events
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# Initialize days_with_events as an empty list
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days_with_events = []
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# Handle multi-day events by adding all days between start and end
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for event in month_events:
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start_date = event['begin'].date()
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end_date = event['end'].date()
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# Convert start and end dates to arrow objects with timezone
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start = arrow.get(event['begin'].date(), tzinfo=self.timezone)
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end = arrow.get(event['end'].date(), tzinfo=self.timezone)
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# Use arrow's range function for generating dates
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for day in arrow.Arrow.range('day', start, end):
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day_num = int(day.format('D')) # get day number using arrow's format method
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if day_num not in days_with_events:
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days_with_events.append(day_num)
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# remove duplicates (more than one event in a single day)
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days_with_events = sorted(set(days_with_events))
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self._days_with_events = days_with_events
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# Draw a border with specified parameters around days with events
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for days in days_with_events:
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if days in grid:
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draw_border(
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im_colour,
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grid[days],
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(icon_width, icon_height),
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radius=6,
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thickness=1,
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shrinkage=(0.4, 0.2),
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)
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# Filter upcoming events until 4 weeks in the future
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parser.clear_events()
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upcoming_events = parser.get_events(now, now.shift(weeks=4), self.timezone)
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self._upcoming_events = upcoming_events
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# delete events which won't be able to fit (more events than lines)
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upcoming_events = upcoming_events[:max_event_lines]
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# Check if any events were found in the given timerange
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if upcoming_events:
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# Find out how much space (width) the date format requires
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lang = self.language
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date_width = int(max((
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self.font.getlength(events['begin'].format(self.date_format, locale=lang))
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for events in upcoming_events))* 1.1
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)
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time_width = int(max((
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self.font.getlength(events['begin'].format(self.time_format, locale=lang))
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for events in upcoming_events))* 1.1
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)
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text_bbox_height = self.font.getbbox("hg")
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line_height = text_bbox_height[3] + line_spacing
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event_width_s = im_width - date_width - time_width
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event_width_l = im_width - date_width
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# Display upcoming events below calendar TODO: not used?
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# tomorrow = now.shift(days=1).floor('day')
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# in_two_days = now.shift(days=2).floor('day')
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cursor = 0
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for event in upcoming_events:
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if cursor < len(event_lines):
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event_duration = (event['end'] - event['begin']).days
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if event_duration > 1:
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# Format the duration using Arrow's localization
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days_translation = arrow.get().shift(days=event_duration).humanize(only_distance=True, locale=lang)
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the_name = f"{event['title']} ({days_translation})"
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else:
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the_name = event['title']
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the_date = event['begin'].format(self.date_format, locale=lang)
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the_time = event['begin'].format(self.time_format, locale=lang)
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# logger.debug(f"name:{the_name} date:{the_date} time:{the_time}")
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if now < event['end']:
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write(
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im_colour,
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event_lines[cursor],
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(date_width, line_height),
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the_date,
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font=self.font,
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alignment='left',
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)
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# Check if event is all day
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if parser.all_day(event):
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write(
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im_black,
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(date_width, event_lines[cursor][1]),
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(event_width_l, line_height),
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the_name,
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font=self.font,
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alignment='left',
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)
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else:
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write(
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im_black,
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(date_width, event_lines[cursor][1]),
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(time_width, line_height),
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the_time,
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font=self.font,
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alignment='left',
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)
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write(
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im_black,
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(date_width + time_width, event_lines[cursor][1]),
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(event_width_s, line_height),
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the_name,
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font=self.font,
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alignment='left',
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)
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cursor += 1
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else:
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symbol = '- '
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while self.font.getlength(symbol) < im_width * 0.9:
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symbol += ' -'
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write(
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im_black,
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event_lines[0],
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(im_width, line_height),
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symbol,
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font=self.font,
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)
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# return the images ready for the display
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return im_black, im_colour
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