SliderRenderable — range slider

A track-and-thumb slider over a numeric range. Focusable. Use it for settings like speed, volume, or zoom.

SliderRenderable::new(orientation: SliderOrientation) -> Self
pub enum SliderOrientation { Horizontal, Vertical }

Range and value

The thumb length is proportional to view_port_size / (range + view_port_size) — a small viewport yields a large thumb (most of the content visible).

Colors

set_track_color(Option<ColorInput>)   // default #252527
set_thumb_color(Option<ColorInput>)   // default #9a9ea3
track_color() -> RGBA
thumb_color() -> RGBA

Rendering

render_self fills the track across the whole area, then draws the thumb proportionally positioned within it. Rendering works at half-cell resolution (a virtual track of 2 × render_size) so the thumb can start and end inside a cell; edge cells show half-block characters (▌, ▐, ▀, ▄) for smooth sub-cell positioning.

Example

use cosh_tui::core::renderables::slider::{SliderRenderable, SliderOrientation};

let mut volume = SliderRenderable::new(SliderOrientation::Horizontal);
volume.set_min(0.0);
volume.set_max(100.0);
volume.set_value(42.0);
assert_eq!(volume.value(), 42.0);
volume.set_value(999.0);      // clamps to max
assert_eq!(volume.value(), 100.0);

Next: scroll_bar — the scroll bar.