Viewing file:  Helper.php (9.12 KB) -rw-rw-rw-
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
/**
* Contains the Calendar_Decorator_Wrapper class
*
* PHP versions 4 and 5
*
* LICENSE: Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FREEBSD PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category Date and Time
* @package Calendar
* @author Harry Fuecks <hfuecks@phppatterns.com>
* @copyright 2003-2007 Harry Fuecks
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @version CVS: $Id: Helper.php 246317 2007-11-16 20:05:32Z quipo $
* @link http://pear.php.net/package/Calendar
*/
/**
* Used by Calendar_Month_Weekdays, Calendar_Month_Weeks and Calendar_Week to
* help with building the calendar in tabular form
*
* @category Date and Time
* @package Calendar
* @author Harry Fuecks <hfuecks@phppatterns.com>
* @copyright 2003-2007 Harry Fuecks
* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
* @link http://pear.php.net/package/Calendar
* @access public
*/
class Calendar_Table_Helper
{
/**
* Instance of the Calendar object being helped.
* @var object
* @access private
*/
var $calendar;
/**
* Instance of the Calendar_Engine
* @var object
* @access private
*/
var $cE;
/**
* First day of the week
* @access private
* @var string
*/
var $firstDay;
/**
* The seven days of the week named
* @access private
* @var array
*/
var $weekDays;
/**
* Days of the week ordered with $firstDay at the beginning
* @access private
* @var array
*/
var $daysOfWeek = array();
/**
* Days of the month built from days of the week
* @access private
* @var array
*/
var $daysOfMonth = array();
/**
* Number of weeks in month
* @var int
* @access private
*/
var $numWeeks = null;
/**
* Number of emtpy days before real days begin in month
* @var int
* @access private
*/
var $emptyBefore = 0;
/**
* Constructs Calendar_Table_Helper
*
* @param object &$calendar Calendar_Month_Weekdays, Calendar_Month_Weeks, Calendar_Week
* @param int $firstDay (optional) first day of the week e.g. 1 for Monday
*
* @access protected
*/
function Calendar_Table_Helper(& $calendar, $firstDay=null)
{
$this->calendar = & $calendar;
$this->cE = & $calendar->getEngine();
if (is_null($firstDay)) {
$firstDay = $this->cE->getFirstDayOfWeek(
$this->calendar->thisYear(),
$this->calendar->thisMonth(),
$this->calendar->thisDay()
);
}
$this->firstDay = $firstDay;
$this->setFirstDay();
$this->setDaysOfMonth();
}
/**
* Constructs $this->daysOfWeek based on $this->firstDay
*
* @return void
* @access private
*/
function setFirstDay()
{
$weekDays = $this->cE->getWeekDays(
$this->calendar->thisYear(),
$this->calendar->thisMonth(),
$this->calendar->thisDay()
);
$endDays = array();
$tmpDays = array();
$begin = false;
foreach ($weekDays as $day) {
if ($begin) {
$endDays[] = $day;
} else if ($day === $this->firstDay) {
$begin = true;
$endDays[] = $day;
} else {
$tmpDays[] = $day;
}
}
$this->daysOfWeek = array_merge($endDays, $tmpDays);
}
/**
* Constructs $this->daysOfMonth
*
* @return void
* @access private
*/
function setDaysOfMonth()
{
$this->daysOfMonth = $this->daysOfWeek;
$daysInMonth = $this->cE->getDaysInMonth(
$this->calendar->thisYear(), $this->calendar->thisMonth());
$firstDayInMonth = $this->cE->getFirstDayInMonth(
$this->calendar->thisYear(), $this->calendar->thisMonth());
$this->emptyBefore=0;
foreach ($this->daysOfMonth as $dayOfWeek) {
if ($firstDayInMonth == $dayOfWeek) {
break;
}
$this->emptyBefore++;
}
$this->numWeeks = ceil(
($daysInMonth + $this->emptyBefore)
/
$this->cE->getDaysInWeek(
$this->calendar->thisYear(),
$this->calendar->thisMonth(),
$this->calendar->thisDay()
)
);
for ($i=1; $i < $this->numWeeks; $i++) {
$this->daysOfMonth =
array_merge($this->daysOfMonth, $this->daysOfWeek);
}
}
/**
* Returns the first day of the month
*
* @return int
* @access protected
* @see Calendar_Engine_Interface::getFirstDayOfWeek()
*/
function getFirstDay()
{
return $this->firstDay;
}
/**
* Returns the order array of days in a week
*
* @return int
* @access protected
*/
function getDaysOfWeek()
{
return $this->daysOfWeek;
}
/**
* Returns the number of tabular weeks in a month
*
* @return int
* @access protected
*/
function getNumWeeks()
{
return $this->numWeeks;
}
/**
* Returns the number of real days + empty days
*
* @return int
* @access protected
*/
function getNumTableDaysInMonth()
{
return count($this->daysOfMonth);
}
/**
* Returns the number of empty days before the real days begin
*
* @return int
* @access protected
*/
function getEmptyDaysBefore()
{
return $this->emptyBefore;
}
/**
* Returns the index of the last real day in the month
*
* @todo Potential performance optimization with static
* @return int
* @access protected
*/
function getEmptyDaysAfter()
{
// Causes bug when displaying more than one month
//static $index;
//if (!isset($index)) {
$index = $this->getEmptyDaysBefore() + $this->cE->getDaysInMonth(
$this->calendar->thisYear(), $this->calendar->thisMonth());
//}
return $index;
}
/**
* Returns the index of the last real day in the month, relative to the
* beginning of the tabular week it is part of
*
* @return int
* @access protected
*/
function getEmptyDaysAfterOffset()
{
$eAfter = $this->getEmptyDaysAfter();
return $eAfter - (
$this->cE->getDaysInWeek(
$this->calendar->thisYear(),
$this->calendar->thisMonth(),
$this->calendar->thisDay()
) * ($this->numWeeks-1));
}
/**
* Returns the timestamp of the first day of the current week
*
* @param int $y year
* @param int $m month
* @param int $d day
* @param int $firstDay first day of the week (default 1 = Monday)
*
* @return int timestamp
*/
function getWeekStart($y, $m, $d, $firstDay=1)
{
$dow = $this->cE->getDayOfWeek($y, $m, $d);
if ($dow > $firstDay) {
$d -= ($dow - $firstDay);
}
if ($dow < $firstDay) {
$d -= (
$this->cE->getDaysInWeek(
$this->calendar->thisYear(),
$this->calendar->thisMonth(),
$this->calendar->thisDay()
) - $firstDay + $dow);
}
return $this->cE->dateToStamp($y, $m, $d);
}
}
?>
|