Source code for timelinelib.calendar.gregorian.timetype.durationformatter
# 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/>.
[docs]class DurationFormatter:
[docs] def __init__(self, duration):
"""Duration is a list containing days and seconds like [days, seconds]."""
self._duration = duration
[docs] def format(self, duration_parts):
"""
Return a string describing a time duration. Such a string
can look like::
2 years 1 month 3 weeks
The argument duration_parts is a tuple where each element
describes a duration type like YEARS, WEEKS etc.
"""
values = self._calc_duration_values(duration_parts)
return self._format_parts(zip(values, duration_parts))
def _calc_duration_values(self, duration_parts):
values = []
for duration_part in duration_parts:
value = duration_part.value_fn(self._duration)
self._duration[0], self._duration[1] = duration_part.remainder_fn(self._duration)
values.append(value)
return values
def _format_parts(self, duration_parts):
durations = self._remov_zero_value_parts(duration_parts)
return " ". join(self._format_durations_parts(durations))
@staticmethod
def _remov_zero_value_parts(duration_parts):
return [duration for duration in duration_parts
if duration[0] > 0]
def _format_durations_parts(self, durations):
return [self._format_part(duration_value, duration_type) for
duration_value, duration_type in durations]
@staticmethod
def _format_part(value, duration_type):
if value == 1:
heading = duration_type.single_name
else:
heading = duration_type.name
return f'{value} {heading}'