<?

extract($_REQUEST);

include("../../config.inc.php");

$query = "SELECT nome_file, tipo, tipo_allegato FROM $tab_files WHERE id = ".$img;

$riga = mysql_fetch_array(mysql_query($query));
$foto = $riga['nome_file'];
$fname = $path_up.$foto;


// THUMBNAILS VIDEO
if($riga['tipo_allegato']=="video") {$fname .= ".jpg"; $riga['tipo'] = "jpg"; }


function getMemoryRequiredToEdit($sImagePath) {
    $aImageInfo = getimagesize($sImagePath);
    return round((($aImageInfo[0] * $aImageInfo[1] * $aImageInfo['bits'] * $aImageInfo['channels'] / 8 + Pow(2, 16)) * 1.65));
}

#echo getMemoryRequiredToEdit($fname);

switch($riga['tipo']) {
	case 'jpg': $ext = "jpeg"; $image = imagecreatefromjpeg($fname); break;
	case 'gif': $ext = "gif";  $image = imagecreatefromgif($fname); break;
}


header("Cache-Control: private, max-age=10800, pre-check=10800");
header("Pragma: private");
header("Expires: " . date(DATE_RFC822,strtotime("14 day")));

if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) 
       && 
  (strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == filemtime($fname))) {
  // send the last mod time of the file back
  header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($fname)).' GMT', 
  true, 304);
  exit;
}
list($width, $height) = getimagesize($fname);


if (($width <= $x) AND ($height <= $y)) {
	$new_width = $width;
	$new_height = $height;
}
else {
	if($_REQUEST['o']==1) {
		if ($height < $width) {
			$riduzione = $height / $y;
			$new_width = $width / $riduzione;
			$new_height = $y;
		}	
		else {
			$riduzione = $height / $y;
			$new_width = $width / $riduzione;
			$new_height = $y;
			if($new_width>$x) {
				$riduzione = $width / $x;
				$new_height = $height / $riduzione;
				$new_width = $x;				
			}
		}	
	}
	else if($_REQUEST['o']==2) {
		if ($width>$height) {
			// formato landscape
			$new_width=$x;
			if (($height*$new_width/$width)>$y) {
				$new_height=$y;
				$new_width=$width*$new_height/$height;
			}
			else {
				$new_width=$x;
				$new_height=$height*$new_width/$width;
			}
		}
		else if ($width<$height) {
			// formato portrait
			$new_height=$y;
			$new_width=$width*$new_height/$height;
		}
		else if ($width==$height) {
			// formato quadrato
			$limite=$x>$y?$y:$x;
			$new_width=$limite;
			$new_height=$height*$new_width/$width;
		}	
	}
	else if($_REQUEST['o']==3) {
		// formato forzato
		$new_width=$x;
		$new_height=$y;
	}
	else if($_REQUEST['o']==4) {
	
//$thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale

list($source_width, $source_height) = getimagesize($fname);

    if (($source_width / $source_height) == ($x / $y)) {
        $source_x = 0;
        $source_y = 0;
    }

    if (($source_width / $source_height) > ($x / $y)) {
        $source_y = 0;
        $temp_width = $source_height * $x / $y;
        $source_x = ($source_width - $temp_width) / 2;
        $source_width = $temp_width;
    }

    if (($source_width / $source_height) < ($x / $y)) {
        $source_x = 0;
        $temp_height = $source_width * $y / $x;
        $source_y = ($source_height - $temp_height) / 2;
        $source_height = $temp_height;
    }

	header("Content-type: image/$ext");
	header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($fname)) . ' GMT');


	$image_p = imagecreatetruecolor($x, $y);
	imagecopyresampled($image_p,$image,0,0,$source_x,$source_y,$x,$y,$source_width,$source_height);
	imagejpeg($image_p,'',100);
	

	imageDestroy($image);
	imageDestroy($image_p);
exit;

	}
	else {
		if ($height > $width) {
			$riduzione = $width / $x;
			$new_height = $height / $riduzione;
			$new_width = $x;
		}
		else {
			$riduzione = $width / $x;
			$new_height = $height / $riduzione;
			$new_width = $x;
			if($new_height>$y) {
				$riduzione = $height / $y;
				$new_width = $width / $riduzione;
				$new_height = $y;				
			}
		}
	}
}

$image_p = imagecreatetruecolor($new_width, $new_height);
/*
if($riga['tipo']=="gif")
{
	$colore = imagecolorallocate($image_p, 0x53, 0x82, 0xC6);
	imagefill($image_p, 0, 0, $colore); 
	imagefilledrectangle($image_p, 0, 0, $new_width, $new_height, 0x5382C6);
}
*/
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

header("Content-type: image/$ext");
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($fname)) . ' GMT');


switch($riga['tipo']) {
	case 'jpg': $ext = "jpeg"; imagejpeg($image_p, '', 100); break;
	case 'gif': $ext = "gif";  imagegif($image_p); break;
}	

imageDestroy($image);
imageDestroy($image_p);

?>