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<?php
/**
* Description: demonstrates a decorator used to "attach a payload" to a selection
* to make it available when iterating over calendar children
*/

//if you use ISO-8601 dates, switch to PearDate engine
define('CALENDAR_ENGINE', 'PearDate');

if ( !@include 'Calendar/Calendar.php' ) {
    define('CALENDAR_ROOT','../../');
}

require_once CALENDAR_ROOT . 'Month/Weekdays.php';
require_once CALENDAR_ROOT . 'Day.php';
require_once CALENDAR_ROOT . 'Decorator.php';

// accepts multiple entries
class DiaryEvent extends Calendar_Decorator
{
    var $entries = array();

    function DiaryEvent($calendar) {
        Calendar_Decorator::Calendar_Decorator($calendar);
    }

    function addEntry($entry) {
        $this->entries[] = $entry;
    }

    function getEntry() {
        $entry = each($this->entries);
        if ($entry) {
            return $entry['value'];
        } else {
            reset($this->entries);
            return false;
        }
    }
}

class MonthPayload_Decorator extends Calendar_Decorator
{
    //Calendar engine
    var $cE;
    var $tableHelper;

    var $year;
    var $month;
    var $firstDay = false;

    function build($events=array())
    {
        require_once CALENDAR_ROOT . 'Day.php';
        require_once CALENDAR_ROOT .  'Table/Helper.php';

        $this->tableHelper = & new Calendar_Table_Helper($this, $this->firstDay);
        $this->cE = & $this->getEngine();
        $this->year  = $this->thisYear();
        $this->month = $this->thisMonth();

        $daysInMonth = $this->cE->getDaysInMonth($this->year, $this->month);
        for ($i=1; $i<=$daysInMonth; $i++) {
            $Day = new Calendar_Day(2000,1,1); // Create Day with dummy values
            $Day->setTimeStamp($this->cE->dateToStamp($this->year, $this->month, $i));
            $this->children[$i] = new DiaryEvent($Day);
        }
        if (count($events) > 0) {
            $this->setSelection($events);
        }
        Calendar_Month_Weekdays::buildEmptyDaysBefore();
        Calendar_Month_Weekdays::shiftDays();
        Calendar_Month_Weekdays::buildEmptyDaysAfter();
        Calendar_Month_Weekdays::setWeekMarkers();
        return true;
    }

    function setSelection($events)
    {
        $daysInMonth = $this->cE->getDaysInMonth($this->year, $this->month);
        for ($i=1; $i<=$daysInMonth; $i++) {
            $stamp1 = $this->cE->dateToStamp($this->year, $this->month, $i);
            $stamp2 = $this->cE->dateToStamp($this->year, $this->month, $i+1);
            foreach ($events as $event) {
                if (($stamp1 >= $event['start'] && $stamp1 < $event['end']) ||
                    ($stamp2 >= $event['start'] && $stamp2 < $event['end']) ||
                    ($stamp1 <= $event['start'] && $stamp2 > $event['end'])
                ) {
                    $this->children[$i]->addEntry($event);
                    $this->children[$i]->setSelected();
                }
            }
        }
    }

    function fetch()
    {
        $child = each($this->children);
        if ($child) {
            return $child['value'];
        } else {
            reset($this->children);
            return false;
        }
    }
}

// Calendar instance used to get the dates in the preferred format:
// you can switch Calendar Engine and the example still works
$cal = new Calendar;

$events = array();
//add some events
$events[] = array(
    'start' => $cal->cE->dateToStamp(2004, 6, 1, 10),
    'end'   => $cal->cE->dateToStamp(2004, 6, 1, 12),
    'desc'  => 'Important meeting'
);
$events[] = array(
    'start' => $cal->cE->dateToStamp(2004, 6, 1, 21),
    'end'   => $cal->cE->dateToStamp(2004, 6, 1, 23, 59),
    'desc'  => 'Dinner with the boss'
);
$events[] = array(
    'start' => $cal->cE->dateToStamp(2004, 6, 5),
    'end'   => $cal->cE->dateToStamp(2004, 6, 10, 23, 59),
    'desc'  => 'Holidays!'
);



$Month = & new Calendar_Month_Weekdays(2004, 6);
$MonthDecorator = new MonthPayload_Decorator($Month);
$MonthDecorator->build($events);

?>
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>

<head>

<title> Calendar </title>

<style text="text/css">

table {

    border-collapse: collapse;

}

caption {

    font-family: verdana;

    font-size: 14pt;

    padding-bottom: 4pt;

}

th {

    font-family: verdana;

    font-size: 11px;

    text-align: center;
    background-color: #e7e3e7;
    padding: 5pt;
    line-height: 150%;

    border: 1px solid #ccc;

}

td {

    font-family: verdana;

    font-size: 11px;

    text-align: left;
    vertical-align: top;

}

td.calCell {

    border: 1px solid #b5bece;

    padding: 3px;

}

td.calCellEmpty {

    background-color: #f3f3f7;

}

td.calCellBusy {

    background-color: #efeffa;

}

div.dayNumber {
    text-align: right;
    background-color: #f8f8f8;
    border-bottom: 1px solid #ccc;
}
ul {
    margin-left: 0;
    margin-top: 5pt;

    padding: 0 10pt 0 12pt;

    list-style-type: square;

}

</style>

</head>



<body>


<h2>Sample Calendar Payload Decorator (using <?php echo CALENDAR_ENGINE; ?> engine)</h2>

<table class="calendar" width="98%" cellspacing="0" cellpadding="0">

<caption>

    <?php echo $MonthDecorator->thisMonth().' / '.$MonthDecorator->thisYear(); ?>

</caption>

<tr>

    <th>Monday</th>

    <th>Tuesday</th>

    <th>Wednesday</th>

    <th>Thursday</th>

    <th>Friday</th>

    <th>Saturday</th>

    <th>Sunday</th>

</tr>

<?php

while ($Day = $MonthDecorator->fetch()) {



    if ($Day->isFirst()) {

        echo "<tr>\n";

    }



    echo '<td class="calCell';
    if ($Day->isSelected()) {
        echo ' calCellBusy';
    } elseif ($Day->isEmpty()) {
        echo ' calCellEmpty';
    }
    echo '">';
    echo '<div class="dayNumber">'.$Day->thisDay().'</div>';

    if ($Day->isEmpty()) {

        echo '&nbsp;';

    } else {

        echo '<div class="dayContents"><ul>';
        while ($entry = $Day->getEntry()) {
            echo  '<li>'.$entry['desc'].'</li>';
            //you can print the time range as well
        }
        echo '</ul></div>';
    }
    echo '</td>';



    if ($Day->isLast()) {

        echo "</tr>\n";
    }

}

?>

</table>

</body>

</html>