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fototeddy
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import SwiftUI
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#if canImport(UIKit)
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import UIKit
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#endif
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/// Der Ausrichtungs-Assistent: begleitet das Rangieren und sagt, ob es besser
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/// oder schlechter wird und wo es am besten stand.
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struct AlignmentAssistantView: View {
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let device: ConfiguredDevice
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let profile: Profile?
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@Environment(BluetoothManager.self) private var bluetooth
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@Environment(\.dismiss) private var dismiss
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@State private var assistant = AlignmentAssistant()
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@State private var didAnnounceTarget = false
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@AppStorage("levelDisplayStyle") private var displayStyle: LevelDisplayStyle = .bubble
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private var state: LevelState { bluetooth.levelStates[device.id] ?? LevelState() }
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var body: some View {
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NavigationStack {
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ScrollView {
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VStack(spacing: 24) {
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Picker("Darstellung", selection: $displayStyle) {
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ForEach(LevelDisplayStyle.allCases) { style in
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Text(style.title).tag(style)
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}
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}
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.pickerStyle(.segmented)
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.padding(.top, 8)
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switch displayStyle {
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case .bubble:
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LevelBubble(pitch: state.pitch, roll: state.roll)
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.frame(maxWidth: 320)
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case .vehicle:
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VehicleTiltView(pitch: state.pitch, roll: state.roll)
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}
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if !isLive { disconnectedBanner }
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adviceBanner
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readings
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if let best = assistant.best, let gain = assistant.improvementAtBest,
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let seconds = assistant.timeSinceBest {
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bestPointCard(best: best, gain: gain, seconds: seconds)
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}
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wedgeSection
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Button("Neu beginnen", systemImage: "arrow.counterclockwise") {
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assistant.reset()
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didAnnounceTarget = false
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}
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.buttonStyle(.bordered)
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.padding(.bottom, 24)
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}
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.padding(.horizontal)
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.frame(maxWidth: .infinity)
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}
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.background(Color(.systemGroupedBackground))
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.navigationTitle("Ausrichtungs-Assistent")
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.navigationBarTitleDisplayMode(.inline)
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.toolbar {
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ToolbarItem(placement: .confirmationAction) {
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Button("Fertig") { dismiss() }
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}
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}
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}
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.onChange(of: state) { _, new in
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guard let pitch = new.pitch, let roll = new.roll else { return }
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assistant.add(pitch: pitch, roll: roll)
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announceIfReached()
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}
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.onAppear {
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// Den anliegenden Wert gleich übernehmen. Sonst stünde bis zur
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// nächsten Messung "Warte auf Messwerte", obwohl längst welche da
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// sind – die Ansicht wirkt dann tot.
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if let pitch = state.pitch, let roll = state.roll {
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assistant.add(pitch: pitch, roll: roll)
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}
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// Beim Rangieren schaut man immer wieder aufs Display; es darf
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// dabei nicht dunkel werden.
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#if canImport(UIKit)
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UIApplication.shared.isIdleTimerDisabled = true
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#endif
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}
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.onDisappear {
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#if canImport(UIKit)
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UIApplication.shared.isIdleTimerDisabled = false
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#endif
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}
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}
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// MARK: - Bausteine
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private var isLive: Bool { bluetooth.linkStates[device.id] == .live }
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/// Reisst die Verbindung beim Rangieren ab, stehen die Zahlen still. Ohne
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/// Hinweis sähe das aus, als hinge die App – man rangiert dann nach einem
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/// Wert, der längst nicht mehr gilt.
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private var disconnectedBanner: some View {
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Label {
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VStack(alignment: .leading, spacing: 2) {
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Text("Nicht verbunden").font(.headline)
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Text("Die Anzeige steht still, bis der Neigungsmesser wieder da ist.")
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.font(.callout)
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.foregroundStyle(.secondary)
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}
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} icon: {
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Image(systemName: "antenna.radiowaves.left.and.right.slash")
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.font(.title)
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.foregroundStyle(.orange)
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding()
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.background(Color.orange.opacity(0.15), in: .rect(cornerRadius: 16))
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}
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private var adviceBanner: some View {
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HStack(spacing: 12) {
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Image(systemName: assistant.hasReachedTarget
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? "checkmark.circle.fill" : assistant.trend.symbol)
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.font(.title)
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.foregroundStyle(assistant.hasReachedTarget ? Color.green : Color.accentColor)
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Text(assistant.advice)
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.font(.title3.weight(.medium))
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.frame(maxWidth: .infinity, alignment: .leading)
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}
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.padding()
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.background(assistant.hasReachedTarget ? Color.green.opacity(0.15)
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: Color(.secondarySystemGroupedBackground),
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in: .rect(cornerRadius: 16))
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}
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private var readings: some View {
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HStack(spacing: 12) {
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reading("Längs", state.pitch)
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reading("Quer", state.roll)
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reading("Gesamt", assistant.current?.deviation)
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}
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}
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private func reading(_ title: String, _ value: Double?) -> some View {
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VStack(spacing: 4) {
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Text(value.map { String(format: "%.1f°", $0) } ?? "–")
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.font(.title2.weight(.semibold).monospacedDigit())
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Text(title)
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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.frame(maxWidth: .infinity)
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.padding(.vertical, 12)
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.background(Color(.secondarySystemGroupedBackground), in: .rect(cornerRadius: 12))
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}
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private func bestPointCard(best: AlignmentAssistant.Sample,
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gain: Double,
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seconds: TimeInterval) -> some View {
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VStack(alignment: .leading, spacing: 6) {
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Label("Bester Punkt", systemImage: "flag.checkered")
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.font(.headline)
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Text(String(format: "Vor %.0f Sekunden stand das Fahrzeug %.1f° flacher (%.1f° statt %.1f°).",
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seconds.rounded(), gain, best.deviation,
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assistant.current?.deviation ?? 0))
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.font(.callout)
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.foregroundStyle(.secondary)
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding()
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.background(Color(.secondarySystemGroupedBackground), in: .rect(cornerRadius: 16))
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}
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@ViewBuilder
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private var wedgeSection: some View {
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// Gerechnet wird über alle vier Räder auf einmal. Getrennte Angaben für
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// quer und längs beschreiben dasselbe Fahrzeug und lassen sich nicht
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// getrennt ausführen: Unter „rechts" liegen zwei Räder, unter „vorne"
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// auch, und eines davon ist dasselbe.
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let lift: LevelingLift? = {
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guard let width = profile?.trackWidth, let base = profile?.wheelbase,
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let pitch = state.pitch, let roll = state.roll else { return nil }
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return LevelingLift.compute(pitch: pitch, roll: roll,
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trackWidth: width, wheelbase: base)
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}()
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VStack(alignment: .leading, spacing: 10) {
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Label("Auffahrkeile", systemImage: "triangle.fill")
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.font(.headline)
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if profile?.trackWidth == nil || profile?.wheelbase == nil {
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Text("Für die Keilhöhe fehlen Spurweite und Radstand. Beides lässt "
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+ "sich beim Fahrzeug hinterlegen.")
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.font(.callout)
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.foregroundStyle(.secondary)
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} else if let lift, !lift.isNegligible {
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WheelLiftPlan(lift: lift)
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.frame(maxWidth: .infinity)
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Text("Zentimeter unter das jeweilige Rad. Das höchststehende Rad "
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+ "bleibt liegen, die übrigen werden auf seine Höhe gebracht.")
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.font(.caption)
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.foregroundStyle(.secondary)
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} else {
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Text("Keine Keile nötig.")
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.font(.callout)
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.foregroundStyle(.secondary)
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}
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}
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding()
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.background(Color(.secondarySystemGroupedBackground), in: .rect(cornerRadius: 16))
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}
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/// Einmal spürbar melden, wenn die Waage erreicht ist – man schaut beim
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/// Rangieren nicht dauernd aufs Display.
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private func announceIfReached() {
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guard assistant.hasReachedTarget else {
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didAnnounceTarget = false
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return
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}
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guard !didAnnounceTarget else { return }
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didAnnounceTarget = true
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#if canImport(UIKit)
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UINotificationFeedbackGenerator().notificationOccurred(.success)
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#endif
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}
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}
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