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iOS: show stem level inside the fader track

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
rootandClaude Opus 5.5 committed 2026-11-10 17:30:45 -08:00
1 parent ae5eead73b
commit 567e557968
1 file changed
+13 -16
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ios/Stemify/UI/Screens/NowPlayingScreen.swift
+13 -16
View File
@@ -806,20 +806,10 @@ private struct StemFader: View {
var body: some View {
let color = Color(hex: Stems.color(name))
FaderRow(dot: setting.muted ? p.label3 : color, label: Stems.label(name), percent: Int(stemTaper(setting.level) * 100), dim: setting.muted, height: height, stacked: roomy) {
VStack(spacing: 0) {
FaderSlider(value: setting.level, fill: setting.muted ? p.label3 : color, detent: StemSetting.unity, enabled: enabled, thumb: roomy ? 26 : 24) {
pm.setStemLevel(name, $0)
}
// Live level under the fader, -48..0 dBFS.
GeometryReader { geo in
// Live level, -48..0 dBFS, drawn as a light band inside the fader's fill.
let f = CGFloat(min(1, max(0, (20 * log10(level + 1e-5) + 48) / 48)))
ZStack(alignment: .leading) {
Capsule().fill(p.fill)
Capsule().fill(color).frame(width: geo.size.width * f)
}
}
.frame(height: 3)
.padding(.horizontal, 12)
FaderSlider(value: setting.level, fill: setting.muted ? p.label3 : color, detent: StemSetting.unity, enabled: enabled, thumb: roomy ? 26 : 24, meter: enabled && !setting.muted ? f : nil) {
pm.setStemLevel(name, $0)
}
} trailing: {
if enabled {
@@ -905,17 +895,19 @@ struct FaderSlider: View {
var detent: Float?
var enabled = true
var thumb: CGFloat = 24
/// 0...1 live level, shown as a lighter band over the filled part of the track.
var meter: CGFloat?
let onChange: (Float) -> Void
@Environment(\.palette) private var p
@State private var start: Float?
@State private var caught = false
init(value: Float, fill: Color, detent: Float? = nil, enabled: Bool = true, thumb: CGFloat = 24, onChange: @escaping (Float) -> Void) {
self.value = value; self.fill = fill; self.detent = detent; self.enabled = enabled; self.thumb = thumb; self.onChange = onChange
init(value: Float, fill: Color, detent: Float? = nil, enabled: Bool = true, thumb: CGFloat = 24, meter: CGFloat? = nil, onChange: @escaping (Float) -> Void) {
self.value = value; self.fill = fill; self.detent = detent; self.enabled = enabled; self.thumb = thumb; self.meter = meter; self.onChange = onChange
}
private var bar: CGFloat { thumb >= 26 ? 5 : 4 }
private var bar: CGFloat { meter == nil ? (thumb >= 26 ? 5 : 4) : 6 }
var body: some View {
GeometryReader { geo in
@@ -924,6 +916,11 @@ struct FaderSlider: View {
ZStack(alignment: .leading) {
Capsule().fill(p.fillStrong).frame(height: bar).padding(.horizontal, thumb / 2)
Capsule().fill(fill).frame(width: x + thumb / 2, height: bar).padding(.leading, thumb / 2 - 0.01)
if let meter, meter > 0.01 {
Capsule().fill(.white.opacity(0.5)).frame(width: meter * (x + thumb / 2), height: bar)
.padding(.leading, thumb / 2 - 0.01)
.animation(.linear(duration: 1 / 30), value: meter)
}
if let detent {
p.label3.frame(width: 2, height: 10).offset(x: CGFloat(detent) * track + thumb / 2 - 1)
}