Struct Number 

pub struct Number {
    pub label: String,
    pub value: f64,
    pub unit: Unit,
    pub range: Option<[f64; 2]>,
    pub step: f64,
    pub text: Option<String>,
    pub error: Option<String>,
    pub handle: Option<Track>,
}

A number field — of a plain number, or of one that may also be given as a formula of the part’s parameters (see Number::text).

Fields

label: String

value: f64

The value — of a formula, what it evaluates to now.

unit: Unit

range: Option<[f64; 2]>

What a slider offers, not what is valid.

step: f64

text: Option<String>

For a field that takes formulas, the value as given — a plain number or a formula — shown and edited in place of value, and sent back as super::Value::Text.

error: Option<String>

Why its formula does not evaluate, if it does not.

handle: Option<Track>

The handle to drag it by, drawn by the editor.

Implementations

impl Number

pub fn new(label: impl Into<String>, value: f64, unit: Unit) -> Self

pub fn numeric( input: &NumericInput, label: impl Into<String>, reader: &Reader<'_>, unit: Unit, ) -> Self

A number field of input, labelled label, showing what it comes to as reader reads the parameters — or, where it does not evaluate, why.

A value that follows a formula is neither slid nor dragged: moving it would have to either break the formula or move the parameters it reads, and neither is what a drag means. So such a field has no slider and no handle (Number::range and Number::handle keep none); to drag the value again, type a number.

pub fn follows_formula(&self) -> bool

Whether its value follows a formula.

pub fn range(self, min: f64, max: f64) -> Self

With a slider from min to max, in 200 steps — unless it follows a formula.

pub fn handle(self, handle: Option<Track>) -> Self

With handle to drag it by — unless it follows a formula.

Trait Implementations

impl Clone for Number

fn clone(&self) -> Number

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Number

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Number

fn eq(&self, other: &Number) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Number

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Number