/**
* This function will do the actual work of creating a thumbnail image.
*
* @param $width The maximum width of the thumbnail.
* @param $height The maximum height of the thumbnail.
* @param $cache (optional) Indicate if the thumbnails should be cached. By default, caching is turned off.
*
* @internal
*/
function &_createThumbnail($width, $height, $cache = true)
{
// Check if the GD library is loaded.
if (!extension_loaded('gd')) {
$this->_error('YD_gd_not_installed');
}
// Include phpThumb
require_once 'phpThumb/phpthumb.class.php';
// Create a new thumbnail object
$thumb = new phpThumb();
$thumb->src = $this->getAbsolutePath();
// Set the options for the creation of thumbnails
$thumb->config_nohotlink_enabled = false;
$thumb->config_cache_directory = YD_DIR_TEMP;
// Set the width and the height
$thumb->w = $width;
$thumb->h = $height;
// Create the cached thumbnail
$cacheFName = $thumb->GenerateCachedFilename();
$cacheFName .= $this->getLastModified();
$cacheFName .= $this->getAbsolutePath();
$cacheFName = YD_TMP_PRE . 'N_' . md5($cacheFName) . '.tmn';
$cacheFName = YD_DIR_TEMP . '/' . $cacheFName;
// Check if caching is enabled
if ($cache == true) {
// Output the cached version if any
if (is_file($cacheFName)) {
$img = new YDFSImage($cacheFName);
header('Content-type: ' . $img->getMimeType());
echo $img->getContents();
die;
}
}
// Width should be positive integer
if ($width < 1) {
$this->_error();
}
// Height should be positive integer
if ($width < 1) {
$this->_error();
}
// Generate the thumbnail
$thumb->GenerateThumbnail();
// Check if caching is enabled
if ($cache == true) {
$thumb->RenderToFile($cacheFName);
}
// Return the thumbnail object
return $thumb;
}
$CanPassThroughDirectly = false;
break;
}
}
if ($CanPassThroughDirectly && !empty($_REQUEST['src'])) {
// no parameters set, passthru
$SourceFilename = $phpThumb->ResolveFilenameToAbsolute($_REQUEST['src']);
if ($getimagesize = @GetImageSize($SourceFilename)) {
header('Content-type: ' . phpthumb_functions::ImageTypeToMIMEtype($getimagesize[2]));
@readfile($SourceFilename);
exit;
}
}
// check to see if file already exists in cache, and output it with no processing if it does
if (!empty($phpThumb->config_cache_directory) && empty($_REQUEST['phpThumbDebug'])) {
$cache_filename = $phpThumb->GenerateCachedFilename();
if (is_file($cache_filename)) {
header('Content-type: image/' . $phpThumb->thumbnailFormat);
@readfile($cache_filename);
exit;
}
}
////////////////////////////////////////////////////////////////
// You may want to pull data from a database rather than a physical file
// If so, uncomment the following $SQLquery line (modified to suit your database)
// Note: this must be the actual binary data of the image, not a URL or filename
// see http://www.billy-corgan.com/blog/archive/000143.php for a brief tutorial on this section
//$SQLquery = 'SELECT `Picture` FROM `products` WHERE (`ProductID` = \''.mysql_escape_string($_REQUEST['id']).'\')';
if (!empty($SQLquery)) {
// change this information to match your server
$server = 'localhost';
