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Allow overriding ParamSlider display value

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This commit is contained in:
Robbert van der Helm 2022-11-07 15:08:50 +01:00
parent 1c3ac492b0
commit bf0f4d56fe
1 changed files with 23 additions and 1 deletions
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24
nih_plug_vizia/src/widgets/param_slider.rs
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@ -32,6 +32,8 @@ pub struct ParamSlider {
// These fields are set through modifiers:
/// What style to use for the slider.
style: ParamSliderStyle,
/// A specific label to use instead of displaying the parameter's value.
label_override: Option<String>,
}
/// How the [`ParamSlider`] should display its values. Set this using
@ -93,6 +95,7 @@ impl ParamSlider {
granular_drag_start_x_value: None,
style: ParamSliderStyle::Centered,
label_override: None,
}
.build(
cx,
@ -174,6 +177,7 @@ impl ParamSlider {
style,
display_value_lens,
make_preview_value_lens,
ParamSlider::label_override,
);
})
.hoverable(false);
@ -265,6 +269,7 @@ impl ParamSlider {
style: ParamSliderStyle,
display_value_lens: impl Lens<Target = String>,
make_preview_value_lens: impl Fn(f32) -> L,
label_override_lens: impl Lens<Target = Option<String>>,
) {
let step_count = param.step_count();
@ -296,13 +301,20 @@ impl ParamSlider {
.hoverable(false);
}
_ => {
Label::new(cx, display_value_lens)
Binding::new(cx, label_override_lens, move |cx, label_override_lens| {
// If the label override is set then we'll use that. If not, the parameter's
// current display value (before modulation) is used.
match label_override_lens.get(cx) {
Some(label_override) => Label::new(cx, &label_override),
None => Label::new(cx, display_value_lens.clone()),
}
.class("value")
.class("value--single")
.child_space(Stretch(1.0))
.height(Stretch(1.0))
.width(Stretch(1.0))
.hoverable(false);
});
}
};
}
@ -548,10 +560,20 @@ impl View for ParamSlider {
pub trait ParamSliderExt {
/// Change how the [`ParamSlider`] visualizes the current value.
fn set_style(self, style: ParamSliderStyle) -> Self;
/// Manually set a fixed label for the slider instead of displaying the current value. This is
/// currently not reactive.
fn with_label(self, value: impl Into<String>) -> Self;
}
impl ParamSliderExt for Handle<'_, ParamSlider> {
fn set_style(self, style: ParamSliderStyle) -> Self {
self.modify(|param_slider: &mut ParamSlider| param_slider.style = style)
}
fn with_label(self, value: impl Into<String>) -> Self {
self.modify(|param_slider: &mut ParamSlider| {
param_slider.label_override = Some(value.into())
})
}
}