[17073] | 1 | <?php |
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| 2 | /* vim: set expandtab tabstop=4 shiftwidth=4: */ |
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[23143] | 3 | // |
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| 4 | // +----------------------------------------------------------------------+ |
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| 5 | // | PHP Version 4 | |
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| 6 | // +----------------------------------------------------------------------+ |
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| 7 | // | Copyright (c) 1997-2002 The PHP Group | |
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| 8 | // +----------------------------------------------------------------------+ |
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| 9 | // | This source file is subject to version 2.02 of the PHP license, | |
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| 10 | // | that is bundled with this package in the file LICENSE, and is | |
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| 11 | // | available at through the world-wide-web at | |
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| 12 | // | http://www.php.net/license/3_0.txt. | |
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| 13 | // | If you did not receive a copy of the PHP license and are unable to | |
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| 14 | // | obtain it through the world-wide-web, please send a note to | |
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| 15 | // | license@php.net so we can mail you a copy immediately. | |
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| 16 | // +----------------------------------------------------------------------+ |
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| 17 | // | Authors: Harry Fuecks <hfuecks@phppatterns.com> | |
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| 18 | // +----------------------------------------------------------------------+ |
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| 19 | // |
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| 20 | // $Id: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $ |
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| 21 | // |
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[17073] | 22 | /** |
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[23143] | 23 | * @package Calendar |
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| 24 | * @version $Id: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $ |
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[17073] | 25 | */ |
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| 26 | |
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| 27 | /** |
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| 28 | * Used by Calendar_Month_Weekdays, Calendar_Month_Weeks and Calendar_Week to |
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| 29 | * help with building the calendar in tabular form |
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[23143] | 30 | * @package Calendar |
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| 31 | * @access protected |
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[17073] | 32 | */ |
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| 33 | class Calendar_Table_Helper |
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| 34 | { |
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| 35 | /** |
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| 36 | * Instance of the Calendar object being helped. |
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| 37 | * @var object |
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| 38 | * @access private |
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| 39 | */ |
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| 40 | var $calendar; |
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| 41 | |
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| 42 | /** |
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| 43 | * Instance of the Calendar_Engine |
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| 44 | * @var object |
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| 45 | * @access private |
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| 46 | */ |
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| 47 | var $cE; |
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| 48 | |
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| 49 | /** |
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| 50 | * First day of the week |
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| 51 | * @access private |
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| 52 | * @var string |
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| 53 | */ |
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| 54 | var $firstDay; |
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| 55 | |
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| 56 | /** |
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| 57 | * The seven days of the week named |
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| 58 | * @access private |
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| 59 | * @var array |
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| 60 | */ |
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| 61 | var $weekDays; |
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| 62 | |
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| 63 | /** |
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| 64 | * Days of the week ordered with $firstDay at the beginning |
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| 65 | * @access private |
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| 66 | * @var array |
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| 67 | */ |
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| 68 | var $daysOfWeek = array(); |
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| 69 | |
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| 70 | /** |
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| 71 | * Days of the month built from days of the week |
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| 72 | * @access private |
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| 73 | * @var array |
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| 74 | */ |
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| 75 | var $daysOfMonth = array(); |
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| 76 | |
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| 77 | /** |
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| 78 | * Number of weeks in month |
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| 79 | * @var int |
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| 80 | * @access private |
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| 81 | */ |
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| 82 | var $numWeeks = null; |
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| 83 | |
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| 84 | /** |
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| 85 | * Number of emtpy days before real days begin in month |
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| 86 | * @var int |
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| 87 | * @access private |
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| 88 | */ |
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| 89 | var $emptyBefore = 0; |
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| 90 | |
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| 91 | /** |
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| 92 | * Constructs Calendar_Table_Helper |
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[23143] | 93 | * @param object Calendar_Month_Weekdays, Calendar_Month_Weeks, Calendar_Week |
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| 94 | * @param int (optional) first day of the week e.g. 1 for Monday |
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[17073] | 95 | * @access protected |
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| 96 | */ |
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| 97 | function Calendar_Table_Helper(& $calendar, $firstDay=null) |
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| 98 | { |
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| 99 | $this->calendar = & $calendar; |
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| 100 | $this->cE = & $calendar->getEngine(); |
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| 101 | if (is_null($firstDay)) { |
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| 102 | $firstDay = $this->cE->getFirstDayOfWeek( |
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| 103 | $this->calendar->thisYear(), |
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| 104 | $this->calendar->thisMonth(), |
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| 105 | $this->calendar->thisDay() |
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| 106 | ); |
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| 107 | } |
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| 108 | $this->firstDay = $firstDay; |
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| 109 | $this->setFirstDay(); |
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| 110 | $this->setDaysOfMonth(); |
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| 111 | } |
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| 112 | |
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| 113 | /** |
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| 114 | * Constructs $this->daysOfWeek based on $this->firstDay |
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| 115 | * @return void |
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| 116 | * @access private |
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| 117 | */ |
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| 118 | function setFirstDay() |
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| 119 | { |
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| 120 | $weekDays = $this->cE->getWeekDays( |
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| 121 | $this->calendar->thisYear(), |
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| 122 | $this->calendar->thisMonth(), |
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| 123 | $this->calendar->thisDay() |
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| 124 | ); |
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| 125 | $endDays = array(); |
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| 126 | $tmpDays = array(); |
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| 127 | $begin = false; |
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| 128 | foreach ($weekDays as $day) { |
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| 129 | if ($begin) { |
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| 130 | $endDays[] = $day; |
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| 131 | } else if ($day === $this->firstDay) { |
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| 132 | $begin = true; |
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| 133 | $endDays[] = $day; |
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| 134 | } else { |
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| 135 | $tmpDays[] = $day; |
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| 136 | } |
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| 137 | } |
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| 138 | $this->daysOfWeek = array_merge($endDays, $tmpDays); |
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| 139 | } |
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| 140 | |
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| 141 | /** |
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| 142 | * Constructs $this->daysOfMonth |
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| 143 | * @return void |
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| 144 | * @access private |
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| 145 | */ |
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| 146 | function setDaysOfMonth() |
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| 147 | { |
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| 148 | $this->daysOfMonth = $this->daysOfWeek; |
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| 149 | $daysInMonth = $this->cE->getDaysInMonth( |
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| 150 | $this->calendar->thisYear(), $this->calendar->thisMonth()); |
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| 151 | $firstDayInMonth = $this->cE->getFirstDayInMonth( |
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| 152 | $this->calendar->thisYear(), $this->calendar->thisMonth()); |
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| 153 | $this->emptyBefore=0; |
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| 154 | foreach ($this->daysOfMonth as $dayOfWeek) { |
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| 155 | if ($firstDayInMonth == $dayOfWeek) { |
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| 156 | break; |
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| 157 | } |
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| 158 | $this->emptyBefore++; |
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| 159 | } |
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| 160 | $this->numWeeks = ceil( |
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| 161 | ($daysInMonth + $this->emptyBefore) |
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| 162 | / |
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| 163 | $this->cE->getDaysInWeek( |
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| 164 | $this->calendar->thisYear(), |
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| 165 | $this->calendar->thisMonth(), |
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| 166 | $this->calendar->thisDay() |
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| 167 | ) |
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| 168 | ); |
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| 169 | for ($i=1; $i < $this->numWeeks; $i++) { |
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| 170 | $this->daysOfMonth = |
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| 171 | array_merge($this->daysOfMonth, $this->daysOfWeek); |
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| 172 | } |
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| 173 | } |
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| 174 | |
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| 175 | /** |
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| 176 | * Returns the first day of the month |
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[23143] | 177 | * @see Calendar_Engine_Interface::getFirstDayOfWeek() |
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[17073] | 178 | * @return int |
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| 179 | * @access protected |
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| 180 | */ |
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| 181 | function getFirstDay() |
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| 182 | { |
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| 183 | return $this->firstDay; |
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| 184 | } |
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| 185 | |
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| 186 | /** |
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| 187 | * Returns the order array of days in a week |
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| 188 | * @return int |
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| 189 | * @access protected |
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| 190 | */ |
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| 191 | function getDaysOfWeek() |
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| 192 | { |
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| 193 | return $this->daysOfWeek; |
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| 194 | } |
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| 195 | |
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| 196 | /** |
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| 197 | * Returns the number of tabular weeks in a month |
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| 198 | * @return int |
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| 199 | * @access protected |
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| 200 | */ |
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| 201 | function getNumWeeks() |
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| 202 | { |
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| 203 | return $this->numWeeks; |
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| 204 | } |
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| 205 | |
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| 206 | /** |
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| 207 | * Returns the number of real days + empty days |
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| 208 | * @return int |
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| 209 | * @access protected |
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| 210 | */ |
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| 211 | function getNumTableDaysInMonth() |
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| 212 | { |
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| 213 | return count($this->daysOfMonth); |
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| 214 | } |
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| 215 | |
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| 216 | /** |
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| 217 | * Returns the number of empty days before the real days begin |
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| 218 | * @return int |
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| 219 | * @access protected |
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| 220 | */ |
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| 221 | function getEmptyDaysBefore() |
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| 222 | { |
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| 223 | return $this->emptyBefore; |
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| 224 | } |
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| 225 | |
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| 226 | /** |
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| 227 | * Returns the index of the last real day in the month |
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| 228 | * @todo Potential performance optimization with static |
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| 229 | * @return int |
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| 230 | * @access protected |
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| 231 | */ |
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| 232 | function getEmptyDaysAfter() |
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| 233 | { |
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| 234 | // Causes bug when displaying more than one month |
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[23143] | 235 | // static $index; |
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| 236 | // if (!isset($index)) { |
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[17073] | 237 | $index = $this->getEmptyDaysBefore() + $this->cE->getDaysInMonth( |
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| 238 | $this->calendar->thisYear(), $this->calendar->thisMonth()); |
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[23143] | 239 | // } |
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[17073] | 240 | return $index; |
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| 241 | } |
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| 242 | |
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| 243 | /** |
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| 244 | * Returns the index of the last real day in the month, relative to the |
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| 245 | * beginning of the tabular week it is part of |
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| 246 | * @return int |
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| 247 | * @access protected |
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| 248 | */ |
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| 249 | function getEmptyDaysAfterOffset() |
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| 250 | { |
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| 251 | $eAfter = $this->getEmptyDaysAfter(); |
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| 252 | return $eAfter - ( |
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| 253 | $this->cE->getDaysInWeek( |
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| 254 | $this->calendar->thisYear(), |
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| 255 | $this->calendar->thisMonth(), |
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| 256 | $this->calendar->thisDay() |
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[23143] | 257 | ) * ($this->numWeeks-1) ); |
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[17073] | 258 | } |
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| 259 | |
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| 260 | /** |
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| 261 | * Returns the timestamp of the first day of the current week |
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| 262 | */ |
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| 263 | function getWeekStart($y, $m, $d, $firstDay=1) |
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| 264 | { |
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| 265 | $dow = $this->cE->getDayOfWeek($y, $m, $d); |
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| 266 | if ($dow > $firstDay) { |
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| 267 | $d -= ($dow - $firstDay); |
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| 268 | } |
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| 269 | if ($dow < $firstDay) { |
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| 270 | $d -= ( |
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| 271 | $this->cE->getDaysInWeek( |
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| 272 | $this->calendar->thisYear(), |
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| 273 | $this->calendar->thisMonth(), |
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| 274 | $this->calendar->thisDay() |
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| 275 | ) - $firstDay + $dow); |
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| 276 | } |
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| 277 | return $this->cE->dateToStamp($y, $m, $d); |
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| 278 | } |
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| 279 | } |
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[23143] | 280 | ?> |
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