<?

/*

 img_shadow.php
  - overlay copyright notice

  Parameters:
	id: ####-SS
	idalt: alternate filename, if available
	size:  "F" = full, "T" = thumbnail
	wm: nonzero = apply watermark (full image only)

*/

$id = $_GET["id"];
$idalt = $_GET["idalt"];
$size = $_GET["size"];
$msize = $_GET["msize"];
$fsize = $_GET["fsize"];


$imgname_cache = "imgcache/".$id.$size."Sh.jpg";
//if (file_exists($imgname_cache) && 0)
if (file_exists($imgname_cache))
{
	$usecache = 1;
	$imgname = $imgname_cache;
}
else
{
	$usecache = 0;

	if ($idalt != "")
		$imgname = "images_new/".$idalt.".jpg";
	else
		$imgname = "images_new/".$id."-img.jpg";

	if (!file_exists($imgname))
	{
		$imgname = "images_new/".$id.".jpg";
		if (!file_exists($imgname))
		{
			$imgname = "images_new/".$id;
			if (!file_exists($imgname))
			{ exit(); }
		}
	}
}

header('Content-type: image/jpeg');
header('Content-transfer-encoding: binary');
if (!$usecache)
//if (1)
{
	if ($size == "F")
	{
	$max_dim = 500;
	$offset = 25;
	}

	else
	{
	$max_dim = 175;
	$offset = 16;
	}
	$offset = 2;  // force to 2 to make white outline

	$img_src = imagecreatefromjpeg($imgname);
//	$img_bg =  imagecreatefromjpeg("shadow_bg.jpg");
	$img_bg =  imagecreatefromjpeg("white_bg.jpg");


	// Horizontal or Vertical

	if (imagesx($img_src) > imagesy($img_src)) {
		$dest_w = $max_dim;
		$dest_h = imagesy($img_src) * $max_dim / imagesx($img_src);
	}

	else {
		$dest_w = imagesx($img_src) * $max_dim / imagesy($img_src);
		$dest_h = $max_dim;
	}

	if (isset($scale))
	{
		$dest_w = $dest_w * $scale / 100;
		$dest_h = $dest_h * $scale / 100;
	}

	// Create the final output image

	$img_dest = imagecreatetruecolor($dest_w,$dest_h);

	// Generate the final image

	// first the background

	imagecopyresampled($img_dest, $img_bg, 0, 0, 0, 0,
		$dest_w, $dest_h,
		imagesx($img_bg), imagesy($img_bg));

	// then the image

//	imagecopyresampled($img_dest, $img_src, 0, 0, 0, 0,
//		$dest_w - $offset, $dest_h - $offset,
//		imagesx($img_src), imagesy($img_src));
	imagecopyresampled($img_dest, $img_src, $offset, $offset, 0, 0,
		$dest_w - ($offset*2), $dest_h - ($offset*2),
		imagesx($img_src), imagesy($img_src));

	// apply a watermark

	if ($size == "F" && isset($wm))
	{
		$color = imagecolorallocatealpha($img_dest, 255, 200, 100, 60);
		imagettftext($img_dest, 20, 0, 20, $dest_h - 40, $color, "fonts/BOOKOS.TTF", "(c) Matt Schrier 2004");
	}
	else if ($size == "T" && isset($overlay))
	{
		$color = imagecolorallocatealpha($img_dest, 255, 200, 100, 0);
		imagettftext($img_dest, 11, 0, 10, $dest_h - 20, $color, "fonts/BOOKOS.TTF", $overlay);
	}

	// Output the image

    imageJPEG($img_dest,$imgname_cache,80);
	imageJPEG($img_dest,"",80);
    imageDestroy($img_dest);
    imageDestroy($img_src);
}
else // we are using cache
{
	readfile($imgname_cache);
}
?>