<?php /**************************************************************************\ * eGroupWare - holidaycalc_JP * * http://www.egroupware.org * * Based on Yoshihiro Kamimura <your@itheart.com> * * http://www.itheart.com * * -------------------------------------------- * * This program 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 2 of the License, or (at your * * option) any later version. * \**************************************************************************/ /* $Id$ */ /** * Calculations for calendar JP holidays * * @package calendar * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License */ class holidaycalc { function calculate_date($holiday, &$holidays, $year) { static $cached_month; static $cached_day; static $cached_observance_rule; if ($holiday['day'] == 0 && $holiday['dow'] != 0 && $holiday['occurence'] != 0) { $dow = $GLOBALS['egw']->datetime->day_of_week($year, $holiday['month'], 1); $dayshift = (($holiday['dow'] + 7) - $dow) % 7; $day = ($holiday['occurence'] - 1) * 7 + $dayshift + 1; // Happy monday law. if ($holiday['month'] == 1) { if ($year < 2000) { $day = 15; } } elseif ($holiday['month'] == 7) { if ($year < 2003) { $day = 20; } } elseif ($holiday['month'] == 9) { if ($year < 2003) { $day = 15; } } elseif ($holiday['month'] == 10) { if ($year < 2000) { $day = 10; } } } elseif ($holiday['day'] == 0 && $holiday['dow'] == 0 && $holiday['occurence'] == 0) { // For the next generation. // over 2151, please set $factor... if ($holiday['month'] == 3) { // for Vernal Equinox if ($year >= 1980 && $year <= 2099) { $factor = 20.8431; } elseif ($year >= 2100 && $year <= 2150) { $factor = 21.851; } } elseif ($holiday['month'] == 9) { // for Autumnal Equinox if ($year >= 1980 && $year <= 2099) { $factor = 23.2488; } elseif ($year >= 2100 && $year <= 2150) { $factor = 24.2488; } } $day = (int)($factor + 0.242194 * ($year - 1980) - (int)(($year - 1980) / 4)); } else { // normal holiday $day = $holiday['day']; } if ($year >= 1985 && $holiday['month'] == $cached_month && $day == $cached_day + 2 && $cached_observance_rule == True && $holiday['observance_rule'] == True) { $pdow = $GLOBALS['egw']->datetime->day_of_week($year,$holiday['month'],$day-1); if ($pdow != 0) { $addcnt = count($holidays) + 1; $holidays[$addcnt]['locale'] = $holiday['locale']; if ($pdow == 1) { $holidays[$addcnt]['name'] = lang('overlap holiday'); } else { $holidays[$addcnt]['name'] = lang('people holiday'); } $holidays[$addcnt]['day'] = $day - 1; $holidays[$addcnt]['month'] = $holiday['month']; $holidays[$addcnt]['occurence'] = 0; $holidays[$addcnt]['dow'] = 0; $holidays[$addcnt]['date'] = mktime(0,0,0,$holiday['month'],$day-1,$year); $holidays[$addcnt]['observance_rule'] = 0; } } $cached_month = $holiday['month']; $cached_day = $day; $cached_observance_rule = $holiday['observance_rule']; if ($year >= 1985 && $holiday['month'] == 5 && $day == 3) { ; } elseif ($holiday['observance_rule'] == True) { $dow = $GLOBALS['egw']->datetime->day_of_week($year,$holiday['month'],$day); // This now calulates Observed holidays and creates a new entry for them. if($dow == 0) { $addcnt = count($holidays) + 1; $holidays[$addcnt]['locale'] = $holiday['locale']; $holidays[$addcnt]['name'] = lang('overlap holiday'); $holidays[$addcnt]['day'] = $day + 1; $holidays[$addcnt]['month'] = $holiday['month']; $holidays[$addcnt]['occurence'] = $holiday['occurence']; $holidays[$addcnt]['dow'] = $holiday['dow']; $holidays[$addcnt]['date'] = mktime(0,0,0,$holiday['month'],$day+1,$year); $holidays[$addcnt]['observance_rule'] = 0; } } $date = mktime(0,0,0,$holiday['month'],$day,$year); return $date; } } ?>