* * 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. * \**************************************************************************/ /* $Id$ */ class holidaycalc { function add($holiday,&$holidays,$year,&$i,$day_offset=0) { $i++; $holidays[$i]= $holiday; if ($day_offset) { $holidays[$i]['name'] .= ' (Observed)'; } $holidays[$i]['date'] = mktime(0,0,0,$holiday['month'],$holiday['day']+$day_offset,$year); foreach(array('day'=>'d','month'=>'m','occurence'=>'Y') as $key => $frmt) { $holidays[$i][$key] = date($frmt,$holidays[$i]['date']); } $holidays[$i]['obervance_rule'] = 0; //echo "

holidaycalc::add(".print_r($holiday,True).",,$year,,$day_offset)=".print_r($holidays[$i],True)."

"; } function calculate_date($holiday, &$holidays, $year, &$i) { //echo "

holidaycalc::calculate_date(".print_r($holiday,True).",,$year,)

"; if($holiday['day'] == 0 && $holiday['occurence'] != 0) { if($holiday['occurence'] != 99) { $dow = $GLOBALS['phpgw']->datetime->day_of_week($year,$holiday['month'],1); $day = (((7 * $holiday['occurence']) - 6) + ((($holiday['dow'] + 7) - $dow) % 7)); $day += ($day < 1 ? 7 : 0); // Sometimes the 5th occurance of a weekday (ie the 5th monday) // can spill over to the next month. This prevents that. $ld = $GLOBALS['phpgw']->datetime->days_in_month($holiday['month'],$year); if ($day > $ld) { return; } } else { $ld = $GLOBALS['phpgw']->datetime->days_in_month($holiday['month'],$year); $dow = $GLOBALS['phpgw']->datetime->day_of_week($year,$holiday['month'],$ld); $day = $ld - (($dow + 7) - $holiday['dow']) % 7 ; } } else { $day = $holiday['day']; if($holiday['observance_rule'] == True) { $dow = $GLOBALS['phpgw']->datetime->day_of_week($year,$holiday['month'],$day); // This now calulates Observed holidays and creates a new entry for them. // 0 = sundays are observed on monday (+1), 6 = saturdays are observed on fridays (-1) if($dow == 0 || $dow == 6) { $this->add($holiday,&$holidays,$year,$i,$dow == 0 ? 1 : -1); } if ($holiday['month'] == 1 && $day == 1) { $dow = $GLOBALS['phpgw']->datetime->day_of_week($year+1,$holiday['month'],$day); // checking if next year's newyear might be observed in this year if ($dow == 6) { $this->add($holiday,&$holidays,$year+1,$i,-1); } // add the next years newyear, to show it in a week- or month-view $this->add($holiday,&$holidays,$year+1,$i); } // checking if last year's new year's eve might be observed in this year if ($holiday['month'] == 12 && $day == 31) { $dow = $GLOBALS['phpgw']->datetime->day_of_week($year-1,$holiday['month'],$day); if ($dow == 0) { $this->add($holiday,&$holidays,$year-1,$i,1); } // add the last years new year's eve, to show it in a week- or month-view $this->add($holiday,&$holidays,$year-1,$i); } } } $date = mktime(0,0,0,$holiday['month'],$day,$year); return $date; } } ?>