Struct ParameterRange 

pub struct ParameterRange {
    pub min: f32,
    pub max: f32,
    pub default: f32,
    pub scale: ParameterScale,
}

Parameter range with scaling for automation and plugin parameters.

Stores the valid range and default value, and provides conversion between normalized (0.0-1.0) and real parameter values.

Fields

min: f32

max: f32

default: f32

scale: ParameterScale

Implementations

impl ParameterRange

pub fn new(min: f32, max: f32, default: f32, scale: ParameterScale) -> Self

pub fn linear(min: f32, max: f32, default: f32) -> Self

pub fn logarithmic(min: f32, max: f32, default: f32) -> Self

Create a logarithmic parameter range (for frequencies, gains).

Panics

Panics in debug mode if min <= 0.

pub fn exponential(min: f32, max: f32, default: f32, curve: f32) -> Self

curve shape factor: values > 1.0 give more resolution at low end.

pub fn toggle(off_value: f32, on_value: f32, default_on: bool) -> Self

pub fn integer(min: i32, max: i32, default: i32) -> Self

pub fn normalize(&self, value: f32) -> f32

pub fn denormalize(&self, normalized: f32) -> f32

pub fn clamp(&self, value: f32) -> f32

pub fn default_normalized(&self) -> f32

pub fn contains(&self, value: f32) -> bool

pub fn span(&self) -> f32

pub fn db_to_linear(db: f32) -> f32

pub fn linear_to_db(linear: f32) -> f32

Returns -inf for amplitude <= 0.

Trait Implementations

impl Clone for ParameterRange

fn clone(&self) -> ParameterRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParameterRange

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

Formats the value using the given formatter.

impl Default for ParameterRange

fn default() -> Self

Returns the “default value” for a type.