102 lines
3.2 KiB
Python
102 lines
3.2 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2001 Donald N. Allingham
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Gregorian calendar module for GRAMPS.
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The original algorithms for this module came from Scott E. Lee's
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C implementation. The original C source can be found at Scott's
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web site at http://www.scottlee.com
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"""
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__author__ = "Donald N. Allingham"
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__version__ = "$Revision$"
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#-------------------------------------------------------------------------
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#
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# python modules
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#
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#-------------------------------------------------------------------------
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import math
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#-------------------------------------------------------------------------
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#
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# Gramps Modules
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#
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#-------------------------------------------------------------------------
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import Calendar
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from gettext import gettext as _
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#-------------------------------------------------------------------------
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#
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# Islamic
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#
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#-------------------------------------------------------------------------
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class Islamic(Calendar.Calendar):
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"""Islamic calendar"""
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EPOCH = 1948439.5
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MONTHS = [
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"Muharram", "Safar", "Rabi`al-Awwal", "Rabi`ath-Thani",
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"Jumada l-Ula", "Jumada t-Tania", "Rajab", "Sha`ban",
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"Ramadan", "Shawwal", "Dhu l-Qa`da", "Dhu l-Hijja"
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]
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M2NUM = {
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"muharram" : 1, "safar" : 2, "rabi`al-awwal" : 3,
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"rabi`ath-thani" : 4, "jumada l-ula" : 5 , "jumada t-tania" : 6,
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"rajab" : 7, "sha`ban" : 8, "ramadan" : 9,
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"shawwal" : 10, "dhu l-qa`da" : 11, "dhu l-hijja" : 12
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}
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NAME = "Islamic"
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TNAME = _("Islamic")
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def quote_display(self,year,month,day,mode):
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return "%s (%s)" % (self.display(year,month,day,mode),Islamic.NAME)
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def set_month_string(self,text):
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try:
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return Islamic.M2NUM[unicode(text.lower())]
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except KeyError:
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return Calendar.UNDEF
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def month(self,val):
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try:
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return Islamic.MONTHS[val-1]
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except:
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return "Illegal Month"
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def get_sdn(self,year, month, day):
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v1 = math.ceil(29.5 * (month - 1))
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v2 = (year - 1) * 354
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v3 = math.floor((3 + (11 *year)) / 30)
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return int(math.ceil((day + v1 + v2 + v3 + Islamic.EPOCH) - 1))
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def get_ymd(self,sdn):
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sdn = math.floor(sdn) + 0.5
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year = int(math.floor(((30*(sdn-Islamic.EPOCH))+10646)/10631))
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month = int(min(12, math.ceil((sdn-(29+self.get_sdn(year,1,1)))/29.5) + 1))
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day = int((sdn - self.get_sdn(year,month,1)) + 1)
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return (year,month,day)
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Calendar.register(Islamic)
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