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source: OpenPNE/branches/ebihara/prj_pnebiz/lib/include/Calendar/Month/Weekdays.php @ 557

Last change on this file since 557 was 557, checked in by ebihara, 14 years ago

create prj_pnebiz

File size: 5.7 KB
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1<?php
2/* vim: set expandtab tabstop=4 shiftwidth=4: */
3//
4// +----------------------------------------------------------------------+
5// | PHP Version 4                                                        |
6// +----------------------------------------------------------------------+
7// | Copyright (c) 1997-2002 The PHP Group                                |
8// +----------------------------------------------------------------------+
9// | This source file is subject to version 2.02 of the PHP license,      |
10// | that is bundled with this package in the file LICENSE, and is        |
11// | available at through the world-wide-web at                           |
12// | http://www.php.net/license/3_0.txt.                                  |
13// | If you did not receive a copy of the PHP license and are unable to   |
14// | obtain it through the world-wide-web, please send a note to          |
15// | license@php.net so we can mail you a copy immediately.               |
16// +----------------------------------------------------------------------+
17// | Authors: Harry Fuecks <hfuecks@phppatterns.com>                      |
18// +----------------------------------------------------------------------+
19//
20// $Id: Weekdays.php,v 1.4 2005/10/22 10:28:49 quipo Exp $
21//
22/**
23 * @package Calendar
24 * @version $Id: Weekdays.php,v 1.4 2005/10/22 10:28:49 quipo Exp $
25 */
26
27/**
28 * Allows Calendar include path to be redefined
29 * @ignore
30 */
31if (!defined('CALENDAR_ROOT')) {
32    define('CALENDAR_ROOT', 'Calendar'.DIRECTORY_SEPARATOR);
33}
34
35/**
36 * Load Calendar base class
37 */
38require_once CALENDAR_ROOT.'Calendar.php';
39
40/**
41 * Load base month
42 */
43require_once CALENDAR_ROOT.'Month.php';
44
45/**
46 * Represents a Month and builds Days in tabular form<br>
47 * <code>
48 * require_once 'Calendar/Month/Weekdays.php';
49 * $Month = & new Calendar_Month_Weekdays(2003, 10); // Oct 2003
50 * $Month->build(); // Build Calendar_Day objects
51 * while ($Day = & $Month->fetch()) {
52 *     if ($Day->isFirst()) {
53 *         echo '<tr>';
54 *     }
55 *     if ($Day->isEmpty()) {
56 *         echo '<td>&nbsp;</td>';
57 *     } else {
58 *         echo '<td>'.$Day->thisDay().'</td>';
59 *     }
60 *     if ($Day->isLast()) {
61 *         echo '</tr>';
62 *     }
63 * }
64 * </code>
65 * @package Calendar
66 * @access public
67 */
68class Calendar_Month_Weekdays extends Calendar_Month
69{
70    /**
71     * Instance of Calendar_Table_Helper
72     * @var Calendar_Table_Helper
73     * @access private
74     */
75    var $tableHelper;
76
77    /**
78     * First day of the week
79     * @access private
80     * @var string
81     */
82    var $firstDay;
83
84    /**
85     * Constructs Calendar_Month_Weekdays
86     * @param int year e.g. 2003
87     * @param int month e.g. 5
88     * @param int (optional) first day of week (e.g. 0 for Sunday, 2 for Tuesday etc.)
89     * @access public
90     */
91    function Calendar_Month_Weekdays($y, $m, $firstDay=null)
92    {
93        Calendar_Month::Calendar_Month($y, $m, $firstDay);
94    }
95
96    /**
97     * Builds Day objects in tabular form, to allow display of calendar month
98     * with empty cells if the first day of the week does not fall on the first
99     * day of the month.
100     * @see Calendar_Day::isEmpty()
101     * @see Calendar_Day_Base::isFirst()
102     * @see Calendar_Day_Base::isLast()
103     * @param array (optional) Calendar_Day objects representing selected dates
104     * @return boolean
105     * @access public
106     */
107    function build($sDates=array())
108    {
109        require_once CALENDAR_ROOT.'Table/Helper.php';
110        $this->tableHelper = & new Calendar_Table_Helper($this, $this->firstDay);
111        Calendar_Month::build($sDates);
112        $this->buildEmptyDaysBefore();
113        $this->shiftDays();
114        $this->buildEmptyDaysAfter();
115        $this->setWeekMarkers();
116        return true;
117    }
118
119    /**
120     * Prepends empty days before the real days in the month
121     * @return void
122     * @access private
123     */
124    function buildEmptyDaysBefore()
125    {
126        $eBefore = $this->tableHelper->getEmptyDaysBefore();
127        for ($i=0; $i < $eBefore; $i++) {
128            $stamp = $this->cE->dateToStamp($this->year, $this->month, -$i);
129            $Day = new Calendar_Day(
130                                $this->cE->stampToYear($stamp),
131                                $this->cE->stampToMonth($stamp),
132                                $this->cE->stampToDay($stamp));
133            $Day->setEmpty();
134            $Day->adjust();
135            array_unshift($this->children, $Day);
136        }
137    }
138
139    /**
140     * Shifts the array of children forward, if necessary
141     * @return void
142     * @access private
143     */
144    function shiftDays()
145    {
146        if (isset ($this->children[0])) {
147            array_unshift($this->children, null);
148            unset($this->children[0]);
149        }
150    }
151
152    /**
153     * Appends empty days after the real days in the month
154     * @return void
155     * @access private
156     */
157    function buildEmptyDaysAfter()
158    {
159        $eAfter = $this->tableHelper->getEmptyDaysAfter();
160        $sDOM = $this->tableHelper->getNumTableDaysInMonth();
161        for ($i = 1; $i <= $sDOM-$eAfter; $i++) {
162            $Day = new Calendar_Day($this->year, $this->month+1, $i);
163            $Day->setEmpty();
164            $Day->adjust();
165            array_push($this->children, $Day);
166        }
167    }
168
169    /**
170     * Sets the "markers" for the beginning and of a of week, in the
171     * built Calendar_Day children
172     * @return void
173     * @access private
174     */
175    function setWeekMarkers()
176    {
177        $dIW  = $this->cE->getDaysInWeek(
178            $this->thisYear(),
179            $this->thisMonth(),
180            $this->thisDay()
181        );
182        $sDOM = $this->tableHelper->getNumTableDaysInMonth();
183        for ($i=1; $i <= $sDOM; $i+= $dIW) {
184            $this->children[$i]->setFirst();
185            $this->children[$i+($dIW-1)]->setLast();
186        }
187    }
188}
189?>
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