<?
// PHP Thumbnail generator
// Damir Kasipovic
// dkasipovic@gmail.com

//=======================================================================================
//		English						|			Srpski									|
//																						|
// takes "file" and "size"			|	uzima "file" i "size"							|
// as variables						|	kao promjenljive								|
//																						|
// Longer side of the image "file"	|	Duza strana slike koja se nalazi fajlu "file"	|
// will be set to "size", and 		|	ce biti duzine "size", a						|
// the other side will be resized	|	drugoj strani ce dimenzija biti promjenjena		|
// proportionally					|	proporcionalno									|
//=======================================================================================

$file=$_GET["file"];
$file = str_replace("\\","",$file);
$imgsize=$_GET["size"];
$imgsize1=$_GET["size1"];

function Error ($text) {
global $imgsize;
$lines=explode("|",$text);
$vstart = intval (($imgsize / 2)-(count($lines)*10));
$im = imagecreate ($imgsize, $imgsize); /* Create a blank image */
$bgc = imagecolorallocate ($im, 255, 255, 255);
$tc = imagecolorallocate ($im, 255, 0, 0);
imagefilledrectangle ($im, 0, 0, $imgsize, $imgsize, $bgc);
for ($i=0;$i<count($lines);$i++) {
$len = strlen ($lines[$i]);
$chrlen = intval (5.9 * $len);
$hoffset = intval (($imgsize - $chrlen) / 2);
imagestring($im,2,$hoffset,$vstart+($i*10),$lines[$i],$tc);
}
header ("Content-type: image/jpeg");
imagejpeg ($im);
imagedestroy ($im);
exit;
}

if (!$file) {
$imgsize=200;
Error("Morate odabrati fajl!|Must specify file!");
}

if (!file_exists($file)) {
$imgsize=200;
Error("Fajl ne postoji!|File does not exist!");
}

if (!$imgsize && !$imgsize1) {
$imgsize=200;
Error("Morate izabrati velicinu slike!|Must specify thumbnail size!");
}

if ($imgsize>1000) {
$imgsize=200;
Error("Maksimalna velicina je 500!|Maximum size is 1000!");
}

if (!function_exists("getimagesize")) { Error("Funkcija GetImageSize ne postoji!|Function GetImageSize does not exist!"); }
$size=getimagesize($file);

if (!$imgsize1) {
	if ($size[0]>$size[1]) {
	$x=$imgsize;
	$y=$size[1]*($imgsize/$size[0]);
	} else {
	$y=$imgsize;
	$x=$size[0]*($imgsize/$size[1]);
	}
} else {
	$x=$imgsize1;
	$y=$size[1]*($imgsize1/$size[0]);
}
$ext=explode(".",$file);
$ext=$ext[count($ext)-1];

$handled=0;
switch (strtolower($ext)) {
case "gif":
	$oldimg=imagecreatefromgif($file);
	$handled=1;
	break;
case "jpg":
	$oldimg=imagecreatefromjpeg($file);
	$handled=1;
	break;
case "jpeg":
	$oldimg=imagecreatefromjpeg($file);
	$handled=1;
	break;
case "png":
	$oldimg=imagecreatefrompng($file);
	$handled=1;
	break;
}

if ($handled==0) { Error("Nepoznat tip fajla!|Unknown file type!"); }

if (!function_exists("imagecreatetruecolor")) { Error("Ne mogu raditi sa TrueColor slikama!|Cannot work with TrueColor images!"); }
$newimg=imagecreatetruecolor($x,$y);
if (!function_exists("imagecopyresampled")) { Error("Ne mogu promjeniti velicinu slike!|Cannot resample picture!"); }

imagecopyresampled($newimg,$oldimg,0,0,0,0,$x,$y,$size[0],$size[1]);
Header ("content-type: image/jpeg");
imagejpeg($newimg);
imagedestroy($oldimg);
imagedestroy($newimg);
?>