source: branches/version-2_13_0/data/module/Calendar/Table/Helper.php @ 23143

Revision 23143, 7.7 KB checked in by m_uehara, 7 years ago (diff)

#2348 r23140 をマージ

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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: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $
21//
22/**
23 * @package Calendar
24 * @version $Id: Helper.php,v 1.5 2005/10/22 09:51:53 quipo Exp $
25 */
26
27/**
28 * Used by Calendar_Month_Weekdays, Calendar_Month_Weeks and Calendar_Week to
29 * help with building the calendar in tabular form
30 * @package Calendar
31 * @access protected
32 */
33class Calendar_Table_Helper
34{
35    /**
36     * Instance of the Calendar object being helped.
37     * @var object
38     * @access private
39     */
40    var $calendar;
41
42    /**
43     * Instance of the Calendar_Engine
44     * @var object
45     * @access private
46     */
47    var $cE;
48
49    /**
50     * First day of the week
51     * @access private
52     * @var string
53     */
54    var $firstDay;
55
56    /**
57     * The seven days of the week named
58     * @access private
59     * @var array
60     */
61    var $weekDays;
62
63    /**
64     * Days of the week ordered with $firstDay at the beginning
65     * @access private
66     * @var array
67     */
68    var $daysOfWeek = array();
69
70    /**
71     * Days of the month built from days of the week
72     * @access private
73     * @var array
74     */
75    var $daysOfMonth = array();
76
77    /**
78     * Number of weeks in month
79     * @var int
80     * @access private
81     */
82    var $numWeeks = null;
83
84    /**
85     * Number of emtpy days before real days begin in month
86     * @var int
87     * @access private
88     */
89    var $emptyBefore = 0;
90
91    /**
92     * Constructs Calendar_Table_Helper
93     * @param object Calendar_Month_Weekdays, Calendar_Month_Weeks, Calendar_Week
94     * @param int (optional) first day of the week e.g. 1 for Monday
95     * @access protected
96     */
97    function Calendar_Table_Helper(& $calendar, $firstDay=null)
98    {
99        $this->calendar = & $calendar;
100        $this->cE = & $calendar->getEngine();
101        if (is_null($firstDay)) {
102            $firstDay = $this->cE->getFirstDayOfWeek(
103                $this->calendar->thisYear(),
104                $this->calendar->thisMonth(),
105                $this->calendar->thisDay()
106            );
107        }
108        $this->firstDay = $firstDay;
109        $this->setFirstDay();
110        $this->setDaysOfMonth();
111    }
112
113    /**
114     * Constructs $this->daysOfWeek based on $this->firstDay
115     * @return void
116     * @access private
117     */
118    function setFirstDay()
119    {
120        $weekDays = $this->cE->getWeekDays(
121            $this->calendar->thisYear(),
122            $this->calendar->thisMonth(),
123            $this->calendar->thisDay()
124        );
125        $endDays  = array();
126        $tmpDays  = array();
127        $begin = false;
128        foreach ($weekDays as $day) {
129            if ($begin) {
130                $endDays[] = $day;
131            } else if ($day === $this->firstDay) {
132                $begin = true;
133                $endDays[] = $day;
134            } else {
135                $tmpDays[] = $day;
136            }
137        }
138        $this->daysOfWeek = array_merge($endDays, $tmpDays);
139    }
140
141    /**
142     * Constructs $this->daysOfMonth
143     * @return void
144     * @access private
145     */
146    function setDaysOfMonth()
147    {
148        $this->daysOfMonth = $this->daysOfWeek;
149        $daysInMonth = $this->cE->getDaysInMonth(
150            $this->calendar->thisYear(), $this->calendar->thisMonth());
151        $firstDayInMonth = $this->cE->getFirstDayInMonth(
152            $this->calendar->thisYear(), $this->calendar->thisMonth());
153        $this->emptyBefore=0;
154        foreach ($this->daysOfMonth as $dayOfWeek) {
155            if ($firstDayInMonth == $dayOfWeek) {
156                break;
157            }
158            $this->emptyBefore++;
159        }
160        $this->numWeeks = ceil(
161            ($daysInMonth + $this->emptyBefore)
162                /
163            $this->cE->getDaysInWeek(
164                $this->calendar->thisYear(),
165                $this->calendar->thisMonth(),
166                $this->calendar->thisDay()
167            )
168        );
169        for ($i=1; $i < $this->numWeeks; $i++) {
170            $this->daysOfMonth =
171                array_merge($this->daysOfMonth, $this->daysOfWeek);
172        }
173    }
174
175    /**
176     * Returns the first day of the month
177     * @see Calendar_Engine_Interface::getFirstDayOfWeek()
178     * @return int
179     * @access protected
180     */
181    function getFirstDay()
182    {
183        return $this->firstDay;
184    }
185
186    /**
187     * Returns the order array of days in a week
188     * @return int
189     * @access protected
190     */
191    function getDaysOfWeek()
192    {
193        return $this->daysOfWeek;
194    }
195
196    /**
197     * Returns the number of tabular weeks in a month
198     * @return int
199     * @access protected
200     */
201    function getNumWeeks()
202    {
203        return $this->numWeeks;
204    }
205
206    /**
207     * Returns the number of real days + empty days
208     * @return int
209     * @access protected
210     */
211    function getNumTableDaysInMonth()
212    {
213        return count($this->daysOfMonth);
214    }
215
216    /**
217     * Returns the number of empty days before the real days begin
218     * @return int
219     * @access protected
220     */
221    function getEmptyDaysBefore()
222    {
223        return $this->emptyBefore;
224    }
225
226    /**
227     * Returns the index of the last real day in the month
228     * @todo Potential performance optimization with static
229     * @return int
230     * @access protected
231     */
232    function getEmptyDaysAfter()
233    {
234        // Causes bug when displaying more than one month
235//        static $index;
236//        if (!isset($index)) {
237            $index = $this->getEmptyDaysBefore() + $this->cE->getDaysInMonth(
238                $this->calendar->thisYear(), $this->calendar->thisMonth());
239//        }
240        return $index;
241    }
242
243    /**
244     * Returns the index of the last real day in the month, relative to the
245     * beginning of the tabular week it is part of
246     * @return int
247     * @access protected
248     */
249    function getEmptyDaysAfterOffset()
250    {
251        $eAfter = $this->getEmptyDaysAfter();
252        return $eAfter - (
253            $this->cE->getDaysInWeek(
254                $this->calendar->thisYear(),
255                $this->calendar->thisMonth(),
256                $this->calendar->thisDay()
257            ) * ($this->numWeeks-1) );
258    }
259
260    /**
261     * Returns the timestamp of the first day of the current week
262     */
263    function getWeekStart($y, $m, $d, $firstDay=1)
264    {
265        $dow = $this->cE->getDayOfWeek($y, $m, $d);
266        if ($dow > $firstDay) {
267            $d -= ($dow - $firstDay);
268        }
269        if ($dow < $firstDay) {
270            $d -= (
271                $this->cE->getDaysInWeek(
272                    $this->calendar->thisYear(),
273                    $this->calendar->thisMonth(),
274                    $this->calendar->thisDay()
275                ) - $firstDay + $dow);
276        }
277        return $this->cE->dateToStamp($y, $m, $d);
278    }
279}
280?>
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