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Add a ParamSlider style that overlays all options

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This commit is contained in:
Robbert van der Helm 2022-03-19 19:42:50 +01:00
parent c3134fb5ef
commit c5d4671f06
1 changed files with 47 additions and 7 deletions
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46
nih_plug_vizia/src/widgets/param_slider.rs
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@ -47,7 +47,9 @@ pub enum ParamSliderStyle {
/// Show the current step instead of filling a portion fothe bar, useful for discrete
/// parameters.
CurrentStep,
// TODO: A CurrentStepWithLabel that overlays the label over the step
/// The same as `CurrentStep`, but overlay the labels over the steps instead of showing the
/// active value. Only useful for discrete parameters with two, maybe three possible values.
CurrentStepLabeled,
}
enum ParamSliderEvent {
@ -150,6 +152,12 @@ impl ParamSlider {
move |cx, text_input_active| {
let param_display_value_lens =
params.map(move |params| params_to_param(params).to_string());
let param_preview_display_value_lens = |normalized_value| {
params.map(move |params| {
params_to_param(params)
.normalized_value_to_string(normalized_value, true)
})
};
let normalized_param_value_lens =
params.map(move |params| params_to_param(params).normalized_value());
@ -189,7 +197,8 @@ impl ParamSlider {
}
ParamSliderStyle::Centered
| ParamSliderStyle::FromLeft => (0.0, current_value),
ParamSliderStyle::CurrentStep => {
ParamSliderStyle::CurrentStep
| ParamSliderStyle::CurrentStepLabeled => {
let previous_step = unsafe {
param_ptr
.previous_normalized_step(current_value)
@ -212,11 +221,42 @@ impl ParamSlider {
// not affect that
.hoverable(false);
Label::new(cx, param_display_value_lens)
// Either display the current value, or display all values over the
// parameter's steps
match (style, step_count) {
(ParamSliderStyle::CurrentStepLabeled, Some(step_count)) => {
HStack::new(cx, |cx| {
// There are step_count + 1 possible values for a
// discrete parameter
for value in 0..step_count + 1 {
let normalized_value =
value as f32 / step_count as f32;
Label::new(
cx,
param_preview_display_value_lens(
normalized_value,
),
)
.class("value")
.class("value--multiple")
.height(Stretch(1.0))
.width(Stretch(1.0))
.hoverable(false);
}
})
.height(Stretch(1.0))
.width(Stretch(1.0))
.hoverable(false);
}
_ => {
Label::new(cx, param_display_value_lens)
.class("value")
.class("value--single")
.height(Stretch(1.0))
.width(Stretch(1.0))
.hoverable(false);
}
};
})
.hoverable(false);
}