8000 Add a `Slider::update_while_editing(bool)` API by mbernat · Pull Request #5978 · emilk/egui · GitHub
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Add a Slider::update_while_editing(bool) API #5978

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merged 1 commit into from
Apr 22, 2025
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Add a Slider::update_while_editing(bool) API #5978

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15 changes: 14 additions & 1 deletion crates/egui/src/widgets/slider.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,7 @@ pub struct Slider<'a> {
custom_parser: Option<NumParser<'a>>,
trailing_fill: Option<bool>,
handle_shape: Option<HandleShape>,
update_while_editing: bool,
}

impl<'a> Slider<'a> {
Expand Down Expand Up @@ -167,6 +168,7 @@ impl<'a> Slider<'a> {
custom_parser: None,
trailing_fill: None,
handle_shape: None,
update_while_editing: true,
}
}

Expand Down Expand Up @@ -641,6 +643,16 @@ impl<'a> Slider<'a> {
let normalized = normalized_from_value(value, self.range(), &self.spec);
lerp(position_range, normalized as f32)
}

/// Update the value on each key press when text-editing the value.
///
/// Default: `true`.
/// If `false`, the value will only be updated when user presses enter or deselects the value.
#[inline]
pub fn update_while_editing(mut self, update: bool) -> Self {
self.update_while_editing = update;
self
}
}

impl Slider<'_> {
Expand Down Expand Up @@ -900,7 +912,8 @@ impl Slider<'_> {
.min_decimals(self.min_decimals)
.max_decimals_opt(self.max_decimals)
.suffix(self.suffix.clone())
.prefix(self.prefix.clone());
.prefix(self.prefix.clone())
.update_while_editing(self.update_while_editing);

match self.clamping {
SliderClamping::Never => {}
Expand Down
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