/**
* @param int $flags The model flags
* @return int The default calc order ID whose file formats use that signature
*/
public static function getDefaultOrderIDFromFlags($flags = 0)
{
return self::isValidFlags($flags) ? self::$models[$flags]['orderID'] : -1;
}
/**
* @param string $sig The signature
* @return string The minimum compatibility flags for that signaure
*/
public static function getMinFlagsFromSignature($sig = '')
{
return self::isValidSignature($sig) ? self::$models[$sig]['flags'] : 0;
}
public static function isValidFlags($flags = 0)
{
return $flags !== 0 && isset(self::$models[$flags]);
}
public static function isValidName($name = '')
{
return $name !== '' && isset(self::$models[$name]);
}
public static function isValidSignature($sig = '')
{
return $sig !== '' && isset(self::$models[$sig]);
}
}
TIModels::initTIModelsArray();
/**
* @param string $sig The signature (magic bytes)
* @return TIModel
* @throws \Exception
*/
public static function createFromSignature($sig = '')
{
if (TIModels::isValidSignature($sig)) {
$instance = new self();
$instance->sig = $sig;
$instance->orderID = TIModels::getDefaultOrderIDFromSignature($sig);
$instance->flags = TIModels::getMinFlagsFromSignature($sig);
$instance->name = TIModels::getDefaultNameFromSignature($sig);
return $instance;
} else {
throw new \Exception("Invalid version signature");
}
}