Source code for timelinelib.calendar.pharaonic.timetype.strips.stripcentury
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Rickard Lindberg, Roger Lindberg
#
# This file is part of Timeline.
#
# Timeline is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Timeline is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Timeline. If not, see <http://www.gnu.org/licenses/>.
from timelinelib.calendar.pharaonic.pharaonic import PharaonicDateTime
from timelinelib.calendar.pharaonic.timetype.formatters import BC
from timelinelib.canvas.drawing.interface import Strip
[docs]class StripCentury(Strip):
"""
Year Name | Year integer | Decade name
----------+--------------+------------
.. | .. |
200 BC | -199 | 200s BC (100 years)
----------+--------------+------------
199 BC | -198 |
... | ... | 100s BC (100 years)
100 BC | -99 |
----------+--------------+------------
99 BC | -98 |
... | ... | 0s BC (only 99 years)
1 BC | 0 |
----------+--------------+------------
1 | 1 |
... | ... | 0s (only 99 years)
99 | 99 |
----------+--------------+------------
100 | 100 |
.. | .. | 100s (100 years)
199 | 199 |
----------+--------------+------------
200 | 200 | 200s (100 years)
.. | .. |
"""
[docs] def label(self, time, major=False):
if major:
pharaonic_time = PharaonicDateTime.from_time(time)
return self._format_century(
self._century_number(
self._century_start_year(pharaonic_time.year)
),
pharaonic_time.is_bc()
)
else:
return ""
[docs] def start(self, time):
return PharaonicDateTime.from_ymd(
self._century_start_year(PharaonicDateTime.from_time(time).year),
1,
1
).to_time()
[docs] def increment(self, time):
pharaonic_time = PharaonicDateTime.from_time(time)
return pharaonic_time.replace(
year=self._next_century_start_year(pharaonic_time.year)
).to_time()
def _century_number(self, century_start_year):
if century_start_year > 99:
return century_start_year
elif century_start_year >= -98:
return 0
else: # century_start_year < -98:
return self._century_number(-century_start_year - 98)
def _next_century_start_year(self, start_year):
return start_year + self._century_year_len(start_year)
@staticmethod
def _century_year_len(start_year):
if start_year in [-98, 1]:
return 99
else:
return 100
@staticmethod
def _format_century(century_number, is_bc):
if is_bc:
return "{century}s {bc}".format(century=century_number, bc=BC)
else:
return "{century}s".format(century=century_number)
def _century_start_year(self, year):
if year > 99:
return year - int(year) % 100
elif year >= 1:
return 1
elif year >= -98:
return -98
else: # year < -98
return -self._century_start_year(-year + 1) - 98