";
}
$result = $result . $orderNameEmpty;
}
$result = $result . $quantityStr . str_repeat(" ", self::MAX_QUANTITY_CHAR_LEN - $quantityLen);
$result = $result . $priceStr . str_repeat(" ", self::MAX_PRICE_CHAR_LEN - $priceLen);
// $result = ''.$result . "
";
return $result;
}
/**
* 大趋智能格式化菜品列表（用于58mm打印机）
* @param $foodName
* @param $quantity
* @param $price
* @return string
*/
public static function trenditFormatOrderItem($foodName, $quantity, $price)
{
$orderNameEmpty = str_repeat(" ", self::MAX_NAME_CHAR_LEN);
$foodNameLen = self::CalcGbkLenForPrint($foodName);
// print("foodNameLen=".$foodNameLen."\n");
$quantityStr = '*' . $quantity;
$quantityLen = self::CalcAsciiLenForPrint($quantityStr);
// print("quantityLen=".$quantityLen."\n");
$priceStr = '' . round($price, 2);
$priceLen = self::CalcAsciiLenForPrint($priceStr);
// print("priceLen=".$priceLen);
$result = $foodName;
$mod = $foodNameLen % self::ROW_MAX_CHAR_LEN;
// print("mod=".$mod."\n");
if ($mod <= self::LAST_ROW_MAX_NAME_CHAR_LEN) {
// 保证各个列的宽度固定，不足部分，利用空格填充
//make sure all the column length fixed, fill with space if not enough
$result = $result . str_repeat(" ", self::MAX_NAME_CHAR_LEN - $mod);
} else {
// 另起新行
// new line
// $result = $result . '
';
$result = $result . $orderNameEmpty;
}
$result = $result . $quantityStr . str_repeat(" ", self::MAX_QUANTITY_CHAR_LEN - $quantityLen);
$result = $result . $priceStr . str_repeat(" ", self::MAX_PRICE_CHAR_LEN - $priceLen);
$result = ''.$result . '
';
return $result;
}
public static function CalcGbkLenForPrint($data)
{
return (strlen($data) + mb_strlen($data, "UTF8")) / 2;
}
public static function CalcAsciiLenForPrint($data)
{
return strlen($data);
}
/**
* @return string
*/
public function getErrorMsg(): string
{
return $this->errorMsg;
}
}