/**
* A smart thumbnailing function. Generates thumbnail images without
* distorting the output of the final image.
*
* @param string $file
* @param string $width
* @param string $height
* @param string $head
* @return string
*/
public static function thumbnail($file, $width, $height, $head = false)
{
if (!is_file($file)) {
return;
}
$uuid = md5($file);
$src = SOFTWARE_HOME . "app/temp/{$uuid}.thumb.{$width}.{$height}.jpeg";
if (!is_file($src) || filectime($file) > filectime($src)) {
$im = imagecreatefromjpeg($file);
$i_width = imagesx($im);
$i_height = imagesy($im);
imagedestroy($im);
$tempImage = uniqid() . ".jpeg";
if ($width > $height) {
ImageCache::resize_image($file, SOFTWARE_HOME . "app/temp/{$tempImage}", $width, 0);
ImageCache::crop_image(SOFTWARE_HOME . "app/temp/{$tempImage}", $src, $width, $height, $head);
} else {
if ($height > $width) {
ImageCache::resize_image($file, SOFTWARE_HOME . "app/temp/{$tempImage}", $height, 0);
ImageCache::crop_image(SOFTWARE_HOME . "app/temp/{$tempImage}", $src, $width, $height, $head);
} else {
if ($i_width > $i_height) {
ImageCache::resize_image($file, SOFTWARE_HOME . "app/temp/{$tempImage}", 0, $height);
} else {
ImageCache::resize_image($file, SOFTWARE_HOME . "app/temp/{$tempImage}", $width, 0);
}
ImageCache::crop_image(SOFTWARE_HOME . "app/temp/{$tempImage}", $src, $width, $height, $head);
}
}
unlink(SOFTWARE_HOME . "app/temp/{$tempImage}");
}
return $src;
}
