Initial Import

1 files changed, 473 insertions, 0 deletions

diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
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+++ b/system/libraries/Calendar.php
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+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		Rick Ellis
+ * @copyright	Copyright (c) 2006, pMachine, Inc.
+ * @license		http://www.codeignitor.com/user_guide/license.html 
+ * @link		http://www.codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+ 
+// ------------------------------------------------------------------------
+
+/**
+ * Code Igniter Calendar Class
+ *
+ * This class enables the creation of calendars 
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		Rick Ellis
+ * @link		http://www.codeigniter.com/user_guide/libraries/calendar.html
+ */
+class CI_Calendar {
+
+	var $lang;
+	var $obj;
+	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()
+	{		
+		$this->obj =& get_instance();
+		if ( ! in_array('calendar_lang'.EXT, $this->obj->lang->is_loaded))
+		{
+			$this->obj->lang->load('calendar');
+		}
+
+		$this->local_time = time();
+		log_message('debug', "Calendar Class Initialized");
+	}
+	// END CI_Calendar()
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * Initialize the user preferences
+	 *
+	 * Accepts an associative array as input, containing display preferences
+	 *
+	 * @access	public
+	 * @param	array	config preferences
+	 * @return	void
+	 */	
+	function initialize($config = array())
+	{
+		foreach ($config as $key => $val)
+		{
+			if (isset($this->$key))
+			{
+				$this->$key = $val;
+			}
+		}
+	} 
+	// END initialize()
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Generate the calendar
+	 *
+	 * @access	public
+	 * @param	integer	the year
+	 * @param	integer	the month
+	 * @param	array	the data to be shown in the calendar cells
+	 * @return	string
+	 */
+    function generate($year = '', $month = '', $data = array())
+    {
+		// Set and validate the supplied month/year
+    	if ($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'];
+		$out .= "\n";
+		
+		// "previous" month link
+		if ($this->show_next_prev == TRUE)
+		{
+			$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)."&nbsp;".$year, $this->temp['heading_title_cell']);
+		
+		$out .= $this->temp['heading_title_cell'];
+		$out .= "\n";
+
+		// "next" month link
+		if ($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'];
+		$out .= "\n";
+
+		// Build the main body of the calendar        
+		while ($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 $out;
+    }
+	// END generate()
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Get Month Name
+	 *
+	 * Generates a texual month name based on the numeric 
+	 * month provided.
+	 *
+	 * @access	public
+	 * @parm	integer	the month
+	 * @return	string
+	 */
+	function get_month_name($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_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_novermber', '12' => 'cal_december');
+		}
+		
+		$month = $month_names[$month];
+		
+		if ($this->obj->lang->line($month) === FALSE)
+		{
+			return ucfirst(str_replace('cal_', '', $month));
+		}
+
+		return $this->obj->lang->line($month);
+	}
+	// END get_month_name()
+	
+	// --------------------------------------------------------------------
+ 
+	/**
+	 * 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->obj->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->obj->lang->line('cal_'.$val);
+		}
+	
+		return $days;
+	}
+ 	// END get_day_names()
+ 	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Adjust Date
+	 *
+	 * This function makes sure that we have a valid month/year.
+	 * For example, if you submit 13 as the month, the year will
+	 * increment and the month will become January.
+	 *
+	 * @access	public
+	 * @param	integer	the month
+	 * @param	integer	the year
+	 * @return	array
+	 */
+    function adjust_date($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 $date;
+    }
+ 	// END adjust_date()
+ 	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Total days in a given month
+	 *
+	 * @access	public
+	 * @param	integer	the month
+	 * @param	integer	the year
+	 * @return	integer
+	 */
+    function get_total_days($month, $year)
+    {
+    	$days_in_month	= array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+    
+        if ($month < 1 OR $month > 12)
+        {
+            return 0;
+        }
+        
+        if ($month == 2)
+        {        
+			if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0))
+			{
+				return 29;
+			}
+        }
+    
+        return $days_in_month[$month - 1];
+    }
+	// END get_total_days()
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * 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}">&lt;&lt;</a></th>',
+						'heading_title_cell' => '<th colspan="{colspan}">{heading}</th>',
+						'heading_next_cell' => '<th><a href="{next_url}">&gt;&gt;</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' => '&nbsp;',
+						'cal_cell_end' => '</td>',
+						'cal_cell_end_today' => '</td>',
+						'cal_row_end' => '</tr>',
+						'table_close' => '</table>'
+					);	
+	}
+	// END default_template()
+	
+	// --------------------------------------------------------------------
+
+	/**
+	 * 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))
+				{
+					$this->temp[$val] = $this->temp[str_replace('_today', '', $val)];
+				}
+			}
+		} 	
+ 	}
+	// END parse_template()
+
+}
+
+// END CI_Calendar class
+?>
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