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<?php
function thumbnail($album, $file, $maxwidth, $maxheight) {
global $ALBUMS_DIR;
if($file =="") return "No such image";
// Config
$quality = 70;
$width = $maxwidth;
$height = $maxheight;
// Filenames
$thumbnaildir = $ALBUMS_DIR . "/" . $album . "/thumbnails/";
$thumbnail = $thumbnaildir . $maxwidth . "x" . $maxheight . "_" . $file;
$original = $ALBUMS_DIR . "/" . $album . "/" . $file;
if(!file_exists($thumbnaildir)) {
// The thumbnaildir doesn't exist, create it.
mkdir($thumbnaildir, 0755);
}
// Create thumbnail
if(!file_exists($thumbnail)) {
list($width_orig, $height_orig) = getimagesize($original);
if ($width && ($width_orig < $height_orig)) {
$width = ($height / $height_orig) * $width_orig;
} else {
$height = ($width / $width_orig) * $height_orig;
}
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($original);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
imagejpeg($image_p, $thumbnail, $quality);
}
// Return thumbnail filename
return $thumbnail;
}
?>
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