function lineHeight( $options = array() )
    {
        if ( is_array( $options ) && isset( $options['size'] ) )
        {
            $size = $options['size'];
        }
        else
        {
            $size = $this->ez['fontSize'];
        }

        if ( is_array( $options ) && isset( $options['leading'] ) )
        {   // use leading instead of spacing
            $height = $options['leading'];
        }
        else if ( is_array( $options ) && isset( $options['spacing'] ) )
        {
            $height = $this->getFontHeight( $size ) * $options['spacing'];
        }
        else
        {
            $height = $this->getFontHeight( $size );
        }

        return $height;
    }