| // | Lorenzo Alberton | // +----------------------------------------------------------------------+ // // $Id$ // /** * @package Calendar * @version $Id$ */ /** * Allows Calendar include path to be redefined * @ignore */ if (!defined('CALENDAR_ROOT')) { define('CALENDAR_ROOT', 'Calendar'.DIRECTORY_SEPARATOR); } /** * Load Calendar decorator base class */ require_once CALENDAR_ROOT.'Decorator.php'; /** * Load a Calendar_Day */ require_once CALENDAR_ROOT.'Day.php'; /** * Decorator for fetching the day of the week * * $Day = new Calendar_Day(2003, 10, 23); * $Weekday = & new Calendar_Decorator_Weekday($Day); * $Weekday->setFirstDay(0); // Set first day of week to Sunday (default Mon) * echo $Weekday->thisWeekDay(); // Displays 5 - fifth day of week relative to Sun * * @package Calendar * @access public */ class Calendar_Decorator_Weekday extends Calendar_Decorator { /** * First day of week * @var int (default = 1 for Monday) * @access private */ var $firstDay = 1; /** * Constructs Calendar_Decorator_Weekday * @param object subclass of Calendar * @access public */ function Calendar_Decorator_Weekday(& $Calendar) { parent::Calendar_Decorator($Calendar); } /** * Sets the first day of the week (0 = Sunday, 1 = Monday (default) etc) * @param int first day of week * @return void * @access public */ function setFirstDay($firstDay) { $this->firstDay = (int)$firstDay; } /** * Returns the previous weekday * @param string (default = 'int') return value format * @return int numeric day of week or timestamp * @access public */ function prevWeekDay($format = 'int') { $ts = $this->calendar->prevDay('timestamp'); $Day = new Calendar_Day(2000,1,1); $Day->setTimeStamp($ts); $day = $this->calendar->cE->getDayOfWeek($Day->thisYear(),$Day->thisMonth(),$Day->thisDay()); $day = $this->adjustWeekScale($day); return $this->returnValue('Day', $format, $ts, $day); } /** * Returns the current weekday * @param string (default = 'int') return value format * @return int numeric day of week or timestamp * @access public */ function thisWeekDay($format = 'int') { $ts = $this->calendar->thisDay('timestamp'); $day = $this->calendar->cE->getDayOfWeek($this->calendar->year,$this->calendar->month,$this->calendar->day); $day = $this->adjustWeekScale($day); return $this->returnValue('Day', $format, $ts, $day); } /** * Returns the next weekday * @param string (default = 'int') return value format * @return int numeric day of week or timestamp * @access public */ function nextWeekDay($format = 'int') { $ts = $this->calendar->nextDay('timestamp'); $Day = new Calendar_Day(2000,1,1); $Day->setTimeStamp($ts); $day = $this->calendar->cE->getDayOfWeek($Day->thisYear(),$Day->thisMonth(),$Day->thisDay()); $day = $this->adjustWeekScale($day); return $this->returnValue('Day', $format, $ts, $day); } /** * Adjusts the day of the week relative to the first day of the week * @param int day of week calendar from Calendar_Engine * @return int day of week adjusted to first day * @access private */ function adjustWeekScale($dayOfWeek) { $dayOfWeek = $dayOfWeek - $this->firstDay; if ( $dayOfWeek >= 0 ) { return $dayOfWeek; } else { return $this->calendar->cE->getDaysInWeek( $this->calendar->year,$this->calendar->month,$this->calendar->day ) + $dayOfWeek; } } } ?>