modules/dateplaner/includes/inc.minicalendar.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                                                                                       |
        |       Dateplaner Modul                                                                                                                  |                                                                                                     
        +-----------------------------------------------------------------------------+
        | Copyright (c) 2004 ILIAS open source & University of Applied Sciences Bremen|
        |                                                                             |
        | 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. |
        +-----------------------------------------------------------------------------+
*/

// it is an action required to generate images..
if ($_GET[action] == "show") {
        $im = ImageCreate (162, 160)
      or die ("Kann keinen neuen GD-Bild-Stream erzeugen");
        $im = showMinicalendar($_GET[month],$_GET[year], $im, $_GET[DP_Lang]);
        // Ilias3 + GD >1.6.1
        ImagePNG($im);

        // Ilias2 + GD <1.6.1
        //ImageGif($im);

}



function showMinicalendar($month,$year, $im, $DP_Lang)
{

        //language
        $array_tmp = @file('../lang/dp_'.$DP_Lang.'.lang');
        foreach($array_tmp as $v)
        {
                if ((substr(trim($v),0,13)=='dateplaner#:#') && (substr_count($v,'#:#')>=2))
                {//Line mustn't start with a ';' and must contain at least one '=' symbol.
                        $pos            = strpos($v, '#:#', '13');
                        $offset1        = strpos($v, '#:#', '13')-13;
                        $offset2        = strpos($v, '###', '13')-$offset1-16;
                        if($offset2 != (-$offset1-16)) {
                                $DP_language[trim(substr($v,13,$offset1))] = trim(substr($v, $pos+3,$offset2));
                        }
                        else {
                                $DP_language[trim(substr($v,13,$offset1))] = trim(substr($v, $pos+3));
                        }
                }
        }

        if(!$month || !$year)
        {
                $month = date(m);
                $year = date(Y);        
        }

        //Wieviele Tage hat der vorherige month
        $lastday = strftime("%d.", mktime (0,0,0,$month,0,$year));
        //Welcher Wochentag ist der 1. des Monats
        $firstday = strftime ("%u", mktime(0,0,0,$month,1,$year))-2;
        if ($firstday == -1) $firstday = 6; 
        $startday = $lastday - $firstday;

    $Tagesnamen = array($DP_language[wk_short], $DP_language[Mo_short], $DP_language[Tu_short], $DP_language[We_short], $DP_language[Th_short], $DP_language[Fr_short], $DP_language[Sa_short], $DP_language[Su_short]);
        $Monatabk = array("", $DP_language[short_01], $DP_language[short_02], $DP_language[short_03], $DP_language[short_04], $DP_language[short_05], $DP_language[short_06], $DP_language[short_07], $DP_language[short_08], $DP_language[short_09], $DP_language[short_10],  $DP_language[short_11], $DP_language[short_12]);

        ImageColorAllocate ($im, 144, 144, 144);
        $color[1] = ImageColorAllocate ($im,0,0,0); //schwarz
        $color[2] = ImageColorAllocate ($im,144,144,144); //blau
        $color[3] = ImageColorAllocate ($im,43,43,43); // dunkelblau
        $color[4] = ImageColorAllocate ($im,255,255,255); //weiss
        $color[5] = ImageColorAllocate ($im,200,200,200); //hellblau
        $color[6] = ImageColorAllocate ($im,0,255,0); //ausblenden hellblau
        $color[7] = ImageColorAllocate ($im,255,200,150); //rot

        imagefilledrectangle ($im, 1, 49, 160, 65, $color[3]);
        imagefilledrectangle ($im, 1, 66, 20, 158, $color[3]);

        //ANZEIGE DES jahres und dessen navigation
        imagerectangle ($im, 10, 2, 25, 17, $color[4]);
        imagerectangle ($im, 135, 2, 150, 17, $color[4]);
        ImageString ($im, 5, 64, 2, $year, $color[4]);
        $points = array("20","6","20","12","15","9");
        imagefilledpolygon ($im, $points, 3, $color[4]);
        $points = array("140","6","140","12","145","9");
        imagefilledpolygon ($im, $points, 3, $color[4]);

        //Anzeige des monats und der navigation
        imageline ( $im, 2, 20 ,158 ,20 , $color[3]);
        imageline ( $im, 2, 33 ,158 ,33 , $color[3]);
        imageline ( $im, 2, 47 ,158 ,47 , $color[3]);
        imageline ( $im, 2, 20 ,2 ,47 , $color[3]);
        imageline ( $im, 158, 20 ,158 ,47 , $color[3]);
        
        imageline ( $im, 27, 20 ,27 ,47 , $color[3]);
        imageline ( $im, 54, 20 ,54 ,47 , $color[3]);
        imageline ( $im, 79, 20 ,79 ,47 , $color[3]);
        imageline ( $im, 105, 20 ,105 ,47 , $color[3]);
        imageline ( $im, 131, 20 ,131 ,47 , $color[3]);

        $c0 = 1;
        for($y = 20; $y <= 40; $y = $y+13)
        {
                for($x = 5; $x <= 137; $x = $x+26)
                {
                        if($month == $c0)
                        {
                                $c1=4;
                        }
                        else
                        {
                                $c1=3;
                        }
                        ImageString ($im, 3, $x, $y, $Monatabk[$c0++], $color[$c1]);
                }
        }

        //Kalenderwoche
        $kw=strftime ("%V", mktime(0,0,0,$month,1,$year));
        if (date("w",mktime(0,0,0,$month,1,$year))==1) 
        {
                $kw = $kw-1;
        }
        else 
        {
                $kw = $kw+0;
        }
        for($y = 66; $y <= 145; $y = $y+15)
        {
                ImageString ($im, 3, 4, $y, $kw++, $color[2]);
        }
        
        //Wochentage MO DI MI...
        $c0 = 0;
        for($x = 5; $x <= 145; $x = $x+20)
        {
                ImageString ($im, 3, $x, 50, $Tagesnamen[$c0++], $color[5]);
        }
        
        //Tage des Monats, bzw. der Tagesnummern
        $c0 = 3;
        for($y = 66; $y <= 145; $y = $y+15)
        {
                for($x = 25; $x <= 145; $x = $x+20)
                {
                        if($startday > $lastday)
                        {
                                if ($c0 == 5)
                                {
                                        $c0 = 3;
                                }
                                else
                                {
                                        $c0 = 5;
                                }
                                $startday = 1;          
                                $monat1 = $month;
                                $jahr1 = $year;
                                if($month == 12)
                                {
                                        $monat1 = 0;
                                        $jahr1 = $year + 1;
                                }
                                $lastday = strftime("%d.", mktime (0,0,0,$monat1+1,0,$jahr1));
                                //Prüfung, ob Schaltjahr
                                if($lastday == 29 && !date(L, mktime (0,0,0,$monat1+1,0,$jahr1))) $lastday = 28;
                        }
                        if($c0 == 5 && $startday == $tag)
                        {
                                imagefilledrectangle ($im, $x-2, $y, $x+14, $y+13, $color[3]);
                                if($startday == date("d")&& $year == date("Y") && $month == date("n"))
                                {
                                        ImageString ($im, 3, $x, $y, $startday++ , $color[7]);  
                                }
                                else
                                {
                                        ImageString ($im, 3, $x, $y, $startday++ , $color[4]);
                                }
                        }
                        else if($c0 == 5 && $startday == date("d") && $year == date("Y") && $month == date("n"))
                        {
                                ImageString ($im, 3, $x, $y, $startday++ , $color[7]);
                        }
                        else
                        {       
                                ImageString ($im, 3, $x, $y, $startday++ , $color[$c0]);
                        }
                }
        }

        return $im;
} // end func


function setMinicalendar($month, $year, $DP_Lang, $app)
{
                
        
        if(!$month || !$year)
        {
                $month = date(m);
                $year = date(Y);        
        }


        $lastday                = strftime("%d.", mktime (0,0,0,$month,0,$year));
        $firstday               = strftime ("%u", mktime(0,0,0,$month,1,$year))-2;

        if ($firstday == -1) $firstday = 6; 
        
        $startday = $lastday - $firstday;

        // generiere Bildmaps
        $minical_show = "
<map name='Calendar'>"; 
        
        //Kalenderwoche
        $kw=strftime ("%V", mktime(0,0,0,$month,1,$year));
        $week_ts=mktime (0,0,0,$month,1,$year);
        if (date("w",$week_ts)==1) 
        {
                $week_ts =  strtotime ("-1 week", $week_ts );
        }
        $x = 4;
        for($y = 66; $y <= 145; $y = $y+15)
        {
                        $x1 = $x + 15;
                        $y1 = $y + 15;
                        $minical_show = $minical_show. "
                        <area shape=rect coords='$x,$y,$x1,$y1' href='dateplaner.php?app=week&timestamp=$week_ts'>";
                        $week_ts= strtotime ("+1 week", $week_ts );
        }


        $c0 = false;
        for($y = 66; $y <= 145; $y = $y+15)
        {
                for($x = 25; $x <= 145; $x = $x+20)
                {
                        if($startday > $lastday || $startday == 1)
                        {
                                if ($c0 == true)
                                {
                                        $c0 = false;
                                }
                                else
                                {
                                        $c0 = true;
                                }
                                $startday = 1;          
                                $monat1 = $month;
                                $jahr1 = $year;
                                if($month == 12)
                                {
                                        $monat1 = 0;
                                        $jahr1 = $year + 1;
                                }
                                $monat1 = $month+1;
                                $lastday = strftime("%d.", mktime (0,0,0,$monat1,0,$jahr1));
                        }
                        if($c0)
                                {
                                $x1 = $x + 15;
                                $y1 = $y + 15;
                                $day_ts=mktime (0,0,0,$month,$startday,$year);
                                $minical_show = $minical_show. "
        <area shape=rect coords='$x,$y,$x1,$y1' href='dateplaner.php?app=day&timestamp=$day_ts'>";
                        }
                        $startday++;
                }
        }

        //Monatsnavigation
        $c0 = 1;
        for($y = 20; $y <= 40; $y = $y+13)
                {
                for($x = 5; $x <= 137; $x = $x+26)
                        {
                        $x1 = $x + 20;
                        $y1 = $y + 10;
                        $month_ts=mktime (0,0,0,$c0,1,$year);
                        $minical_show = $minical_show. "
        <area shape=rect coords='$x,$y,$x1,$y1' href='dateplaner.php?app=$app&month=$c0&year=$year&timestamp=$month_ts'>";
                        $c0++;
                }       
        }
        $minical_show = $minical_show. "
        <area shape=rect coords='10,2,25,17' href='dateplaner.php?app=$app&month=$month&year=$year&action=last'>
        <area shape=rect coords='135,2,150,17' href='dateplaner.php?app=$app&month=$month&year=$year&action=next'>
</map>

<img src='.".DATEPLANER_ROOT_DIR."/includes/inc.minicalendar.php?action=show&month=".$month."&year=".$year."&DP_Lang=".$DP_Lang."' usemap='#Calendar' border=0>
";
        return $minical_show;
                
} // end func
?>