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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');/*** CodeIgniter** An open source application development framework for PHP 4.3.2 or newer** @package CodeIgniter* @author ExpressionEngine Dev Team* @copyright Copyright (c) 2008, EllisLab, Inc.* @license http://codeigniter.com/user_guide/license.html* @link http://codeigniter.com* @since Version 1.0* @filesource*/// ------------------------------------------------------------------------/*** CodeIgniter Calendar Class** This class enables the creation of calendars** @package CodeIgniter* @subpackage Libraries* @category Libraries* @author ExpressionEngine Dev Team* @link http://codeigniter.com/user_guide/libraries/calendar.html*/class CI_Calendar {var $CI;var $lang;var $local_time;var $template = '';var $start_day = 'sunday';var $month_type = 'long';var $day_type = 'abr';var $show_next_prev = FALSE;var $next_prev_url = '';/*** Constructor** Loads the calendar language file and sets the default time reference** @access public*/function CI_Calendar($config = array()){$this->CI =& get_instance();if ( ! in_array('calendar_lang'.EXT, $this->CI->lang->is_loaded, TRUE)){$this->CI->lang->load('calendar');}$this->local_time = time();if (count($config) > 0){$this->initialize($config);}log_message('debug', "Calendar Class Initialized");}// --------------------------------------------------------------------/*** Initialize the user preferences** Accepts an associative array as input, containing display preferences** @access public* @param array config preferences* @return void*/function initialize($config = array()){foreach ($config as $key => $val){if (isset($this->$key)){$this->$key = $val;}}}// --------------------------------------------------------------------/*** Generate the calendar** @access public* @param integer the year* @param integer the month* @param array the data to be shown in the calendar cells* @return string*/function generate($year = '', $month = '', $data = array()){// Set and validate the supplied month/yearif ($year == '')$year = date("Y", $this->local_time);if ($month == '')$month = date("m", $this->local_time);if (strlen($year) == 1)$year = '200'.$year;if (strlen($year) == 2)$year = '20'.$year;if (strlen($month) == 1)$month = '0'.$month;$adjusted_date = $this->adjust_date($month, $year);$month = $adjusted_date['month'];$year = $adjusted_date['year'];// Determine the total days in the month$total_days = $this->get_total_days($month, $year);// Set the starting day of the week$start_days = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6);$start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day];// Set the starting day number$local_date = mktime(12, 0, 0, $month, 1, $year);$date = getdate($local_date);$day = $start_day + 1 - $date["wday"];while ($day > 1){$day -= 7;}// Set the current month/year/day// We use this to determine the "today" date$cur_year = date("Y", $this->local_time);$cur_month = date("m", $this->local_time);$cur_day = date("j", $this->local_time);$is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE;// Generate the template data array$this->parse_template();// Begin building the calendar output$out = $this->temp['table_open'];$out .= "\n";$out .= "\n";$out .= $this->temp['heading_row_start'];$out .= "\n";// "previous" month linkif ($this->show_next_prev == TRUE){// Add a trailing slash to the URL if needed$this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/", $this->next_prev_url);$adjusted_date = $this->adjust_date($month - 1, $year);$out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']);$out .= "\n";}// Heading containing the month/year$colspan = ($this->show_next_prev == TRUE) ? 5 : 7;$this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']);$this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)." ".$year, $this->temp['heading_title_cell']);$out .= $this->temp['heading_title_cell'];$out .= "\n";// "next" month linkif ($this->show_next_prev == TRUE){$adjusted_date = $this->adjust_date($month + 1, $year);$out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']);}$out .= "\n";$out .= $this->temp['heading_row_end'];$out .= "\n";// Write the cells containing the days of the week$out .= "\n";$out .= $this->temp['week_row_start'];$out .= "\n";$day_names = $this->get_day_names();for ($i = 0; $i < 7; $i ++){$out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->temp['week_day_cell']);}$out .= "\n";$out .= $this->temp['week_row_end'];$out .= "\n";// Build the main body of the calendarwhile ($day <= $total_days){$out .= "\n";$out .= $this->temp['cal_row_start'];$out .= "\n";for ($i = 0; $i < 7; $i++){$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];if ($day > 0 AND $day <= $total_days){if (isset($data[$day])){// Cells with content$temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];$out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp));}else{// Cells with no content$temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content'];$out .= str_replace('{day}', $day, $temp);}}else{// Blank cells$out .= $this->temp['cal_cell_blank'];}$out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];$day++;}$out .= "\n";$out .= $this->temp['cal_row_end'];$out .= "\n";}$out .= "\n";$out .= $this->temp['table_close'];return $out;}// --------------------------------------------------------------------/*** Get Month Name** Generates a textual month name based on the numeric* month provided.** @access public* @param integer the month* @return string*/function get_month_name($month){if ($this->month_type == 'short'){$month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec');}else{$month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_may', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');}$month = $month_names[$month];if ($this->CI->lang->line($month) === FALSE){return ucfirst(str_replace('cal_', '', $month));}return $this->CI->lang->line($month);}// --------------------------------------------------------------------/*** Get Day Names** Returns an array of day names (Sunday, Monday, etc.) based* on the type. Options: long, short, abrev** @access public* @param string* @return array*/function get_day_names($day_type = ''){if ($day_type != '')$this->day_type = $day_type;if ($this->day_type == 'long'){$day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');}elseif ($this->day_type == 'short'){$day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');}else{$day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');}$days = array();foreach ($day_names as $val){$days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val);}return $days;}// --------------------------------------------------------------------/*** Adjust Date** This function makes sure that we have a valid month/year.* For example, if you submit 13 as the month, the year will* increment and the month will become January.** @access public* @param integer the month* @param integer the year* @return array*/function adjust_date($month, $year){$date = array();$date['month'] = $month;$date['year'] = $year;while ($date['month'] > 12){$date['month'] -= 12;$date['year']++;}while ($date['month'] <= 0){$date['month'] += 12;$date['year']--;}if (strlen($date['month']) == 1){$date['month'] = '0'.$date['month'];}return $date;}// --------------------------------------------------------------------/*** Total days in a given month** @access public* @param integer the month* @param integer the year* @return integer*/function get_total_days($month, $year){$days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);if ($month < 1 OR $month > 12){return 0;}// Is the year a leap year?if ($month == 2){if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)){return 29;}}return $days_in_month[$month - 1];}// --------------------------------------------------------------------/*** Set Default Template Data** This is used in the event that the user has not created their own template** @access public* @return array*/function default_template(){return array ('table_open' => '<table border="0" cellpadding="4" cellspacing="0">','heading_row_start' => '<tr>','heading_previous_cell' => '<th><a href="{previous_url}"><<</a></th>','heading_title_cell' => '<th colspan="{colspan}">{heading}</th>','heading_next_cell' => '<th><a href="{next_url}">>></a></th>','heading_row_end' => '</tr>','week_row_start' => '<tr>','week_day_cell' => '<td>{week_day}</td>','week_row_end' => '</tr>','cal_row_start' => '<tr>','cal_cell_start' => '<td>','cal_cell_start_today' => '<td>','cal_cell_content' => '<a href="{content}">{day}</a>','cal_cell_content_today' => '<a href="{content}"><strong>{day}</strong></a>','cal_cell_no_content' => '{day}','cal_cell_no_content_today' => '<strong>{day}</strong>','cal_cell_blank' => ' ','cal_cell_end' => '</td>','cal_cell_end_today' => '</td>','cal_row_end' => '</tr>','table_close' => '</table>');}// --------------------------------------------------------------------/*** Parse Template** Harvests the data within the template {pseudo-variables}* used to display the calendar** @access public* @return void*/function parse_template(){$this->temp = $this->default_template();if ($this->template == ''){return;}$today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today');foreach (array('table_open', 'table_close', 'heading_row_start', 'heading_previous_cell', 'heading_title_cell', 'heading_next_cell', 'heading_row_end', 'week_row_start', 'week_day_cell', 'week_row_end', 'cal_row_start', 'cal_cell_start', 'cal_cell_content', 'cal_cell_no_content', 'cal_cell_blank', 'cal_cell_end', 'cal_row_end', 'cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today') as $val){if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match)){$this->temp[$val] = $match['1'];}else{if (in_array($val, $today, TRUE)){$this->temp[$val] = $this->temp[str_replace('_today', '', $val)];}}}}}// END CI_Calendar class/* End of file Calendar.php *//* Location: ./system/libraries/Calendar.php */