calendar/classes/class.ilMiniCal.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        |       Dateplaner Modul                                                      |                                                                                                 
        +-----------------------------------------------------------------------------+
        | Copyright (c) 2005 ILIAS open source                                        |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+

*/


// get ilias conectivity 

class ilMiniCal {
        

        var $ilias;
        var $tpl;
        var $lng;

        var $cal_month; // private variable containing the month that will be displayed
        var $cal_year;
        var $cal;

        
        function ilMiniCal()
        {
                global $ilias, $tpl, $lng;

                $this->ilias =& $ilias;
                $this->tpl = & $tpl;
                $this->lng =& $lng;
        }

        
        function show($month, $year)
        {
        
                $cal_month = $month;
                $cal_year = $year;
                $cal_day = date(j);
        
                $lastday                = strftime("%d", mktime (0,0,0,$cal_month,0,$cal_year));        // was last month's last day the 30rd, 31st, ...?
                // the %u option fails on windows (see bug 1624)
                $firstday               = strftime ("%w", mktime(0,0,0,$cal_month,1,$cal_year)) - 2;    // which day is this month's first day ? (Monday,...)
                if ($firstday == -2)
                {
                        $firstday = 5;
                }

                $startday = $lastday - $firstday;
        
                if ($lastday != 31 || $cal_month == "8" || $cal_month == "1")
                {
                        $days_in_month = 31;                            // decide how many days the actual month has
                }
                else
                {       
                        if ($cal_month != 02)
                        {
                                $days_in_month = 30;
                        }
                        else
                        {
                                if ($cal_year % 4 == 0)
                                {
                                        $days_in_month = 29;            // decide we're about to display a leap year and need to adjust the number of days
                                }       
                                else
                                {
                                        $days_in_month = 28;
                                }
                        }
        
                }
                $next = $cal_year + 1;
                $last = $cal_year - 1;
                $next_ts = mktime (0,0,0,$cal_month,1,$next);                   // timestamps for displaying day views for next and last year button
                $last_ts = mktime (0,0,0,$cal_month,1,$last);
        
                // beginning of html-code for table     
                $cal = "<table tableborder='1' rules='none' frame='box' bgcolor='#FFFFFF' style='margin-right: 10px;'><tr><td class=\"il_CalNextMonth\">".
                        "<a href=\"dateplaner.php?app=".$_GET["app"]."&month=$cal_month&year=$last&timestamp=$last_ts\">".
                        " < </a></td> <td align=\"center\" class=\"il_CalMonth\" colspan=\"6\">".
                        $this->lng->txt("short_".$cal_month)." $cal_year </td><td class=\"il_CalNextMonth\"> <a href=\"dateplaner.php?app=".
                        $_GET["app"]."&month=$cal_month&year=$next&timestamp=$next_ts\"> > </a> </td></tr>\n";
                $cal = $cal."<tr><td></td>";
                for($i = 1; $i <= 12; $i++)
                {
                        if ($i <= 9)
                        {
                                $tmp = "0".$i;          // standardizes content of $tmp to two digits representing months
                        }
                        else
                        {       
                                $tmp = $i;
                        }
                        $ts = mktime (0,0,0,$tmp,1,$cal_year);          // create timestamps to enable dayviews for months in actual year
                        $cal = $cal."<td class=\"il_CalShortMonth\"><a href=\"dateplaner.php?app=".$_GET["app"]."&month=".$tmp."&year=".$cal_year."&timestamp=".$ts."\">".$this->lng->txt("short_".$tmp)."</td>";
                        if ($i == 6) $cal = $cal."<td></td></tr> \n <tr><td></td>";
                        
                }
                $cal = $cal."<td></td></tr> \n ";
                // html code for displaying days of week using ilias lng-module
                $cal = $cal."<tr bgcolor='#AAAAAA'><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("wk_short").
                        "</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Mo_short")."</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Tu_short").
                        "</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("We_short")."</td>";
                $cal = $cal."<td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Th_short").
                        "</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Fr_short").
                        "</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Sa_short").
                        "</td><td class=\"il_CalShortDayOfWeek\">".$this->lng->txt("Su_short")."</td></tr>";
                
                $kw = strftime ("%V", mktime(0,0,0,$cal_month,1,$cal_year)); // get actual number of week to start with
        
                $counter = 1; // general counter; calendar will always dislpay 42 days
                $day = 1;       // variable needed for displaying first week, if first week is split into different month
                $ts_week = mktime (0,0,0,$cal_month,1,$cal_year); // timestamp that contains the week and is updated every loop inside brackets
        
                // loop to generate html-code for actual weeks and days in month
                for ($x = 1; $x <= 6; $x++)
                {               
                                $cal = $cal. " <tr><td bgcolor='#AAAAAA' class=\"il_CalShortWeek\"><a href=\"dateplaner.php?app=week&month=".$cal_month."&year=".$cal_year."&timestamp=".$ts_week."\">$kw</td> ";
                                $ts_week = strtotime ("+1 week", $ts_week );
        
                                if ($x == 1)
                                {                               
                                        $tmp = $startday;
                                        while ($tmp <= $lastday)
                                        {
                                                $cal = $cal." <td class=\"il_CalDay\"> $tmp</td> "; // displays days in old month if first day in month isn't Monday
                                                $tmp++;
                                                $counter++;
                                        }
                                        
                                        $empty_string ="";
                                        while ($counter <=7)
                                        {
                                                $ts_day = mktime (0,0,0, $cal_month, $day, $cal_year);  // timestamps to display different day views
                                                if ($day == $cal_day&& $cal_month == date (m) && $cal_year == date (Y)) $empty_string = " bgcolor='FF8000'";
        
                                                // html-code for table entry and according link
                                                $cal = $cal." <td class=\"il_CalDay\" ".$empty_string."><a href=\"dateplaner.php?app=day&month=".$cal_month."&year=".$cal_year."&timestamp=".$ts_day."\">$day</a></td> ";
                                                $day++;
                                                $tmp++;
                                                $counter++;
                                                $empty_string ="";
                                                        
                                        }
                                        if ($kw >= 52 ) $kw = 0; // adjusts week numbers if you display january or december 
                                        $day = 1; // resets variable...
                                        
                                }
                                else                    
                                {
                                        for ($c = 7 - $firstday + ($x-2) * 7; $c <= 6 - $firstday + ($x-1) *7 && $counter <= 42; $c++) // c represents the actual day in month
                                        {
                                                if ($c <= $days_in_month)
                                                {
                                                        $ts_day = mktime (0,0,0, $cal_month, $c, $cal_year);  // timestamps to display different day views
                                                        if ($c == $cal_day && $cal_month == date (m) && $cal_year == date (Y)) $empty_string = " bgcolor='FF8000'";
                                                                                                        
                                                        // html-code for table entry and according link
                                                        $cal = $cal. "<td class=\"il_CalDay\" ".$empty_string."><a href=\"dateplaner.php?app=day&month=".$cal_month."&year=".$cal_year."&timestamp=".$ts_day."\"> $c</a></td>";
                                                        $counter++;
                                                        $empty_string ="";
                                                }
                                                else  // clause displays days that belong to next month
                                                {
                                                        $cal = $cal. "<td class=\"il_CalDay\"> $day</td>";
                                                        $day++;
                                                        $counter++;
                                                }                                                               
                                        } 
                                }                       
                                $cal = $cal. "</tr> \n "; // complete table row
                                $kw++;                                  // update weeknumber
                }
                $cal = $cal." </table>"; // complete table
                
                return $cal;
        
        }

}

?>