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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/3_0.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Harry Fuecks <hfuecks@phppatterns.com> |
// | Lorenzo Alberton <l dot alberton at quipo dot it> |
// +----------------------------------------------------------------------+
//
// $Id: Weekday.php,v 1.1 2005-09-30 14:58:00 ddelon Exp $
//
/**
* @package Calendar
* @version $Id: Weekday.php,v 1.1 2005-09-30 14:58:00 ddelon Exp $
*/
/**
* 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
* <code>
* $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
* </code>
* @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;
}
}
}
?>