Struct EuvSliderHelpers 

pub struct EuvSliderHelpers;

Stateless helper functions backing the euv_slider component.

The slider needs two operations that are pure functions of their arguments — percentage mapping and the value-writing input handler. Grouping them here keeps the #[component] body free of arithmetic and event plumbing.

Implementations

impl EuvSliderHelpers

pub fn percent(value: f64, min: f64, max: f64) -> f64

Maps value onto the 0.0..=100.0 percentage range spanned by min..=max.

A degenerate range (min == max) reports 0.0 instead of dividing by zero, and values outside the range are clamped so a mis-typed signal can never produce a nonsensical percentage.

Arguments

• f64 - The value to map.
• f64 - The low end of the range.
• f64 - The high end of the range.

Returns

• f64 - The percentage position of value within the range.

pub fn on_slider_input( signal: Signal<f64>, min: f64, max: f64, ) -> Option<Rc<dyn Fn(Event)>>

Builds an input handler that writes the range value into signal.

The parsed value is clamped to the [min, max] window so a keyboard-driven overshoot cannot push the signal outside the range the component advertises.

Arguments

• Signal<f64> - The signal updated with the new value.
• f64 - The low end of the accepted range.
• f64 - The high end of the accepted range.

Returns

• Option<Rc<dyn Fn(Event)>> - An input handler writing the clamped range value into the signal.