1 | <?php |
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2 | /* vim: set expandtab tabstop=4 shiftwidth=4: */ |
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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 | // | Lorenzo Alberton <l dot alberton at quipo dot it> | |
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19 | // +----------------------------------------------------------------------+ |
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20 | // |
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21 | // $Id: Weekday.php,v 1.3 2004/08/16 12:25:15 hfuecks Exp $ |
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22 | // |
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23 | /** |
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24 | * @package Calendar |
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25 | * @version $Id: Weekday.php,v 1.3 2004/08/16 12:25:15 hfuecks Exp $ |
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26 | */ |
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27 | |
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28 | /** |
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29 | * Allows Calendar include path to be redefined |
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30 | * @ignore |
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31 | */ |
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32 | if (!defined('CALENDAR_ROOT')) { |
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33 | define('CALENDAR_ROOT', 'Calendar'.DIRECTORY_SEPARATOR); |
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34 | } |
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35 | |
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36 | /** |
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37 | * Load Calendar decorator base class |
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38 | */ |
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39 | require_once CALENDAR_ROOT.'Decorator.php'; |
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40 | |
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41 | /** |
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42 | * Load a Calendar_Day |
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43 | */ |
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44 | require_once CALENDAR_ROOT.'Day.php'; |
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45 | /** |
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46 | * Decorator for fetching the day of the week |
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47 | * <code> |
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48 | * $Day = new Calendar_Day(2003, 10, 23); |
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49 | * $Weekday = & new Calendar_Decorator_Weekday($Day); |
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50 | * $Weekday->setFirstDay(0); // Set first day of week to Sunday (default Mon) |
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51 | * echo $Weekday->thisWeekDay(); // Displays 5 - fifth day of week relative to Sun |
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52 | * </code> |
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53 | * @package Calendar |
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54 | * @access public |
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55 | */ |
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56 | class Calendar_Decorator_Weekday extends Calendar_Decorator |
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57 | { |
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58 | /** |
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59 | * First day of week |
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60 | * @var int (default = 1 for Monday) |
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61 | * @access private |
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62 | */ |
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63 | var $firstDay = 1; |
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64 | |
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65 | /** |
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66 | * Constructs Calendar_Decorator_Weekday |
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67 | * @param object subclass of Calendar |
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68 | * @access public |
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69 | */ |
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70 | function Calendar_Decorator_Weekday(& $Calendar) |
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71 | { |
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72 | parent::Calendar_Decorator($Calendar); |
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73 | } |
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74 | |
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75 | /** |
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76 | * Sets the first day of the week (0 = Sunday, 1 = Monday (default) etc) |
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77 | * @param int first day of week |
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78 | * @return void |
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79 | * @access public |
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80 | */ |
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81 | function setFirstDay($firstDay) { |
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82 | $this->firstDay = (int)$firstDay; |
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83 | } |
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84 | |
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85 | /** |
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86 | * Returns the previous weekday |
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87 | * @param string (default = 'int') return value format |
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88 | * @return int numeric day of week or timestamp |
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89 | * @access public |
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90 | */ |
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91 | function prevWeekDay($format = 'int') |
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92 | { |
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93 | $ts = $this->calendar->prevDay('timestamp'); |
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94 | $Day = new Calendar_Day(2000,1,1); |
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95 | $Day->setTimeStamp($ts); |
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96 | $day = $this->calendar->cE->getDayOfWeek($Day->thisYear(),$Day->thisMonth(),$Day->thisDay()); |
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97 | $day = $this->adjustWeekScale($day); |
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98 | return $this->returnValue('Day', $format, $ts, $day); |
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99 | } |
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100 | |
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101 | /** |
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102 | * Returns the current weekday |
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103 | * @param string (default = 'int') return value format |
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104 | * @return int numeric day of week or timestamp |
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105 | * @access public |
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106 | */ |
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107 | function thisWeekDay($format = 'int') |
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108 | { |
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109 | $ts = $this->calendar->thisDay('timestamp'); |
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110 | $day = $this->calendar->cE->getDayOfWeek($this->calendar->year,$this->calendar->month,$this->calendar->day); |
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111 | $day = $this->adjustWeekScale($day); |
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112 | return $this->returnValue('Day', $format, $ts, $day); |
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113 | } |
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114 | |
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115 | /** |
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116 | * Returns the next weekday |
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117 | * @param string (default = 'int') return value format |
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118 | * @return int numeric day of week or timestamp |
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119 | * @access public |
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120 | */ |
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121 | function nextWeekDay($format = 'int') |
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122 | { |
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123 | $ts = $this->calendar->nextDay('timestamp'); |
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124 | $Day = new Calendar_Day(2000,1,1); |
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125 | $Day->setTimeStamp($ts); |
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126 | $day = $this->calendar->cE->getDayOfWeek($Day->thisYear(),$Day->thisMonth(),$Day->thisDay()); |
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127 | $day = $this->adjustWeekScale($day); |
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128 | return $this->returnValue('Day', $format, $ts, $day); |
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129 | } |
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130 | |
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131 | /** |
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132 | * Adjusts the day of the week relative to the first day of the week |
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133 | * @param int day of week calendar from Calendar_Engine |
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134 | * @return int day of week adjusted to first day |
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135 | * @access private |
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136 | */ |
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137 | function adjustWeekScale($dayOfWeek) { |
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138 | $dayOfWeek = $dayOfWeek - $this->firstDay; |
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139 | if ( $dayOfWeek >= 0 ) { |
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140 | return $dayOfWeek; |
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141 | } else { |
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142 | return $this->calendar->cE->getDaysInWeek( |
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143 | $this->calendar->year,$this->calendar->month,$this->calendar->day |
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144 | ) + $dayOfWeek; |
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145 | } |
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146 | } |
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147 | } |
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148 | ?> |
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