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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> | |
| // +----------------------------------------------------------------------+ |
| // |
| // $Id: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $ |
| // |
| /** |
| * @package Calendar |
| * @version $Id: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $ |
| */ |
| |
| /** |
| * Used by Calendar_Month_Weekdays, Calendar_Month_Weeks and Calendar_Week to |
| * help with building the calendar in tabular form |
| * @package Calendar |
| * @access protected |
| */ |
| 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_Month_Weekdays, Calendar_Month_Weeks, Calendar_Week |
| * @param int (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 |
| * @see Calendar_Engine_Interface::getFirstDayOfWeek() |
| * @return int |
| * @access protected |
| */ |
| 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 |
| */ |
| 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); |
| } |
| } |
| ?> |