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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>                      |

// |          Lorenzo Alberton <l dot alberton at quipo dot it>           |

// +----------------------------------------------------------------------+

//

// $Id: Textual.php,v 1.2 2004/08/16 13:13:09 hfuecks Exp $

//

/**

 * @package Calendar

 * @version $Id: Textual.php,v 1.2 2004/08/16 13:13:09 hfuecks Exp $

 */

/**

 * Allows Calendar include path to be redefined

 * @ignore

 */

if (!defined('CALENDAR_ROOT')) {

    define('CALENDAR_ROOT', 'Calendar'.DIRECTORY_SEPARATOR);

}

/**

 * Load Calendar decorator base class

 */

require_once CALENDAR_ROOT.'Decorator.php';

/**

 * Static utlities to help with fetching textual representations of months and

 * days of the week.

 * @package Calendar

 * @access public

 */

class Calendar_Util_Textual

{

    /**

     * Returns an array of 12 month names (first index = 1)

     * @param string (optional) format of returned months (one,two,short or long)

     * @return array

     * @access public

     * @static

     */

    function monthNames($format='long')

    {

        $formats = array('one'=>'%b', 'two'=>'%b', 'short'=>'%b', 'long'=>'%B');

        if (!array_key_exists($format,$formats)) {

            $format = 'long';

        }

        $months = array();

        for ($i=1; $i<=12; $i++) {

            $stamp = mktime(0, 0, 0, $i, 1, 2003);

            $month = strftime($formats[$format], $stamp);

            switch($format) {

                case 'one':

                    $month = substr($month, 0, 1);

                break;

                case 'two':

                    $month = substr($month, 0, 2);

                break;

            }

            $months[$i] = $month;

        }

        return $months;

    }

    /**

     * Returns an array of 7 week day names (first index = 0)

     * @param string (optional) format of returned days (one,two,short or long)

     * @return array

     * @access public

     * @static

     */

    function weekdayNames($format='long')

    {

        $formats = array('one'=>'%a', 'two'=>'%a', 'short'=>'%a', 'long'=>'%A');

        if (!array_key_exists($format,$formats)) {

            $format = 'long';

        }

        $days = array();

        for ($i=0; $i<=6; $i++) {

            $stamp = mktime(0, 0, 0, 11, $i+2, 2003);

            $day = strftime($formats[$format], $stamp);

            switch($format) {

                case 'one':

                    $day = substr($day, 0, 1);

                break;

                case 'two':

                    $day = substr($day, 0, 2);

                break;

            }

            $days[$i] = $day;

        }

        return $days;

    }

    /**

     * Returns textual representation of the previous month of the decorated calendar object

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function prevMonthName($Calendar, $format='long')

    {

        $months = Calendar_Util_Textual::monthNames($format);

        return $months[$Calendar->prevMonth()];

    }

    /**

     * Returns textual representation of the month of the decorated calendar object

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function thisMonthName($Calendar, $format='long')

    {

        $months = Calendar_Util_Textual::monthNames($format);

        return $months[$Calendar->thisMonth()];

    }

    /**

     * Returns textual representation of the next month of the decorated calendar object

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function nextMonthName($Calendar, $format='long')

    {

        $months = Calendar_Util_Textual::monthNames($format);

        return $months[$Calendar->nextMonth()];

    }

    /**

     * Returns textual representation of the previous day of week of the decorated calendar object

     * <b>Note:</b> Requires PEAR::Date

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function prevDayName($Calendar, $format='long')

    {

        $days = Calendar_Util_Textual::weekdayNames($format);

        $stamp = $Calendar->prevDay('timestamp');

        $cE = $Calendar->getEngine();

        require_once 'Date/Calc.php';

        $day = Date_Calc::dayOfWeek($cE->stampToDay($stamp),

            $cE->stampToMonth($stamp), $cE->stampToYear($stamp));

        return $days[$day];

    }

    /**

     * Returns textual representation of the day of week of the decorated calendar object

     * <b>Note:</b> Requires PEAR::Date

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function thisDayName($Calendar, $format='long')

    {

        $days = Calendar_Util_Textual::weekdayNames($format);

        require_once 'Date/Calc.php';

        $day = Date_Calc::dayOfWeek($Calendar->thisDay(), $Calendar->thisMonth(), $Calendar->thisYear());

        return $days[$day];

    }

    /**

     * Returns textual representation of the next day of week of the decorated calendar object

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return string

     * @access public

     * @static

     */

    function nextDayName($Calendar, $format='long')

    {

        $days = Calendar_Util_Textual::weekdayNames($format);

        $stamp = $Calendar->nextDay('timestamp');

        $cE = $Calendar->getEngine();

        require_once 'Date/Calc.php';

        $day = Date_Calc::dayOfWeek($cE->stampToDay($stamp),

            $cE->stampToMonth($stamp), $cE->stampToYear($stamp));

        return $days[$day];

    }

    /**

     * Returns the days of the week using the order defined in the decorated

     * calendar object. Only useful for Calendar_Month_Weekdays, Calendar_Month_Weeks

     * and Calendar_Week. Otherwise the returned array will begin on Sunday

     * @param object subclass of Calendar e.g. Calendar_Month

     * @param string (optional) format of returned months (one,two,short or long)

     * @return array ordered array of week day names

     * @access public

     * @static

     */

    function orderedWeekdays($Calendar, $format='long')

    {

        $days = Calendar_Util_Textual::weekdayNames($format);

        // Not so good - need methods to access this information perhaps...

        if (isset($Calendar->tableHelper)) {

            $ordereddays = $Calendar->tableHelper->daysOfWeek;

        } else {

            $ordereddays = array(0, 1, 2, 3, 4, 5, 6);

        }

        $ordereddays = array_flip($ordereddays);

        $i = 0;

        $returndays = array();

        foreach ($ordereddays as $key => $value) {

            $returndays[$i] = $days[$key];

            $i++;

        }

        return $returndays;

    }

}

?>