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// |
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// MeterView.swift |
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// USB Meter |
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// |
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// Created by Bogdan Timofte on 04/03/2020. |
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// Copyright © 2020 Bogdan Timofte. All rights reserved. |
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// |
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// MARK: Parent frame https://stackoverflow.com/questions/56832865/how-to-access-parents-frame-in-swiftui |
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import SwiftUI |
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import CoreBluetooth |
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struct MeterView: View {
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@EnvironmentObject private var meter: Meter |
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@State var dataGroupsViewVisibility: Bool = false |
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@State var recordingViewVisibility: Bool = false |
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@State var measurementsViewVisibility: Bool = false |
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private var myBounds: CGRect { UIScreen.main.bounds }
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private let actionStripPadding: CGFloat = 10 |
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private let actionDividerWidth: CGFloat = 1 |
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private let actionButtonMaxWidth: CGFloat = 156 |
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private let actionButtonMinWidth: CGFloat = 88 |
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private let actionButtonHeight: CGFloat = 108 |
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var body: some View {
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GeometryReader { proxy in
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let landscape = isLandscape(size: proxy.size) |
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Group {
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if landscape {
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landscapeDeck(size: proxy.size) |
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} else {
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portraitContent |
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} |
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} |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top) |
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.navigationBarHidden(landscape) |
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} |
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.background(meterBackground) |
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.navigationBarTitle("Meter")
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.navigationBarItems(trailing: HStack (spacing: 6) {
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if meter.operationalState > .notPresent {
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RSSIView(RSSI: meter.btSerial.RSSI) |
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.frame(width: 18, height: 18) |
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.padding(.leading, 6) |
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.padding(.vertical) |
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} |
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NavigationLink(destination: MeterInfoView().environmentObject(meter)) {
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Image(systemName: "info.circle.fill") |
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.padding(.vertical) |
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} |
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NavigationLink(destination: MeterSettingsView().environmentObject(meter)) {
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Image(systemName: "gearshape.fill") |
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.padding(.vertical) |
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} |
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}) |
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} |
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private var portraitContent: some View {
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ScrollView {
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VStack(alignment: .leading, spacing: 16) {
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connectionCard() |
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if meter.operationalState == .dataIsAvailable {
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actionGrid() |
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LiveView() |
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.padding(18) |
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.meterCard(tint: meter.color, fillOpacity: 0.12, strokeOpacity: 0.20) |
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if meter.measurements.power.context.isValid {
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MeasurementChartView() |
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.environmentObject(meter.measurements) |
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.frame(minHeight: myBounds.height / 3.4) |
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.padding(16) |
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.meterCard(tint: meter.color, fillOpacity: 0.12, strokeOpacity: 0.20) |
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} |
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} |
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} |
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.padding() |
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} |
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} |
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private func landscapeDeck(size: CGSize) -> some View {
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TabView {
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landscapeFace {
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if meter.operationalState == .dataIsAvailable {
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HStack(alignment: .top, spacing: 16) {
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connectionCard(compact: true) |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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landscapeActionPanel(size: size) |
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} |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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} else {
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connectionCard(compact: true) |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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} |
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} |
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if meter.operationalState == .dataIsAvailable {
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landscapeFace {
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LiveView(compactLayout: true, availableSize: size) |
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.padding(16) |
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.frame(maxWidth: .infinity, alignment: .topLeading) |
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.meterCard(tint: meter.color, fillOpacity: 0.12, strokeOpacity: 0.20) |
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} |
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if meter.measurements.power.context.isValid {
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landscapeFace {
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MeasurementChartView() |
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.environmentObject(meter.measurements) |
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.frame(height: max(250, size.height - 44)) |
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.padding(10) |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .center) |
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.meterCard(tint: meter.color, fillOpacity: 0.12, strokeOpacity: 0.20) |
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} |
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} |
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} |
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} |
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.tabViewStyle(PageTabViewStyle(indexDisplayMode: .automatic)) |
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} |
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private func landscapeFace<Content: View>(@ViewBuilder content: () -> Content) -> some View {
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content() |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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.padding(.horizontal, 12) |
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.padding(.vertical, 12) |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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} |
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private var meterBackground: some View {
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LinearGradient( |
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colors: [ |
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meter.color.opacity(0.22), |
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Color.secondary.opacity(0.08), |
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Color.clear |
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], |
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startPoint: .topLeading, |
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endPoint: .bottomTrailing |
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) |
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.ignoresSafeArea() |
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} |
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private func isLandscape(size: CGSize) -> Bool {
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size.width > size.height |
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} |
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private func connectionCard(compact: Bool = false) -> some View {
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VStack(alignment: .leading, spacing: compact ? 12 : 18) {
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HStack(alignment: .top) {
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VStack(alignment: .leading, spacing: 6) {
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Text(meter.name) |
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.font(.system(compact ? .title3 : .title2, design: .rounded).weight(.bold)) |
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Text(meter.deviceModelSummary) |
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.font(.subheadline.weight(.semibold)) |
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.foregroundColor(.secondary) |
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} |
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Spacer() |
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Group {
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if compact {
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HStack(spacing: 8) {
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statusBadge |
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if meter.operationalState > .notPresent {
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Text("RSSI \(meter.btSerial.RSSI)")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} |
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} |
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} else {
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VStack(alignment: .trailing, spacing: 6) {
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statusBadge |
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if meter.operationalState > .notPresent {
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Text("RSSI \(meter.btSerial.RSSI)")
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.font(.caption) |
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.foregroundColor(.secondary) |
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} |
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} |
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} |
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} |
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} |
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if compact {
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Spacer(minLength: 0) |
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} |
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connectionActionArea(compact: compact) |
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} |
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.padding(compact ? 16 : 20) |
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.frame(maxWidth: .infinity, maxHeight: compact ? .infinity : nil, alignment: .topLeading) |
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.meterCard(tint: meter.color, fillOpacity: 0.22, strokeOpacity: 0.24) |
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} |
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private func actionGrid(compact: Bool = false, embedded: Bool = false) -> some View {
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let currentActionHeight = compact ? CGFloat(86) : actionButtonHeight |
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return GeometryReader { proxy in
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let buttonWidth = actionButtonWidth(for: proxy.size.width) |
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let stripWidth = actionStripWidth(for: buttonWidth) |
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let stripContent = HStack(spacing: 0) {
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meterSheetButton(icon: "square.grid.2x2.fill", title: meter.dataGroupsTitle, tint: .teal, width: buttonWidth, height: currentActionHeight, compact: compact) {
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dataGroupsViewVisibility.toggle() |
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} |
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.sheet(isPresented: $dataGroupsViewVisibility) {
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DataGroupsView(visibility: $dataGroupsViewVisibility) |
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.environmentObject(meter) |
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} |
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if meter.supportsRecordingView {
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actionStripDivider(height: currentActionHeight) |
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meterSheetButton(icon: "gauge.with.dots.needle.50percent", title: "Charge Record", tint: .pink, width: buttonWidth, height: currentActionHeight, compact: compact) {
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recordingViewVisibility.toggle() |
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} |
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.sheet(isPresented: $recordingViewVisibility) {
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RecordingView(visibility: $recordingViewVisibility) |
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.environmentObject(meter) |
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} |
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} |
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actionStripDivider(height: currentActionHeight) |
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meterSheetButton(icon: "clock.arrow.circlepath", title: "App History", tint: .blue, width: buttonWidth, height: currentActionHeight, compact: compact) {
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measurementsViewVisibility.toggle() |
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} |
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.sheet(isPresented: $measurementsViewVisibility) {
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MeasurementsView(visibility: $measurementsViewVisibility) |
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.environmentObject(meter.measurements) |
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} |
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} |
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.padding(actionStripPadding) |
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.frame(width: stripWidth) |
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HStack {
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Spacer(minLength: 0) |
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if embedded {
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stripContent |
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} else {
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stripContent |
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.meterCard(tint: Color.secondary, fillOpacity: 0.10, strokeOpacity: 0.16) |
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} |
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Spacer(minLength: 0) |
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} |
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} |
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.frame(height: currentActionHeight + (actionStripPadding * 2)) |
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} |
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private func landscapeActionPanel(size: CGSize) -> some View {
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VStack(alignment: .leading, spacing: 14) {
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Text("Actions")
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.font(.headline) |
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Spacer(minLength: 0) |
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actionGrid(compact: true, embedded: true) |
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Spacer(minLength: 0) |
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} |
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.padding(18) |
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.frame(width: min(420, max(320, size.width * 0.34))) |
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.frame(maxHeight: .infinity, alignment: .topLeading) |
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.meterCard(tint: Color.secondary, fillOpacity: 0.10, strokeOpacity: 0.16) |
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} |
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private func connectionActionArea(compact: Bool = false) -> some View {
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let connected = meter.operationalState >= .peripheralConnectionPending |
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let tint = connected ? disconnectActionTint : connectActionTint |
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return Group {
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if meter.operationalState == .notPresent {
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HStack(spacing: 10) {
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Image(systemName: "exclamationmark.triangle.fill") |
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.foregroundColor(.orange) |
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Text("Not found at this time.")
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.fontWeight(.semibold) |
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Spacer() |
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} |
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.padding(compact ? 12 : 16) |
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.meterCard(tint: .orange, fillOpacity: 0.14, strokeOpacity: 0.18) |
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} else {
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Button(action: {
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if meter.operationalState < .peripheralConnectionPending {
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meter.connect() |
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} else {
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meter.disconnect() |
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} |
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}) {
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HStack(spacing: 12) {
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Image(systemName: connected ? "xmark.circle.fill" : "bolt.horizontal.circle.fill") |
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.foregroundColor(tint) |
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.frame(width: 30, height: 30) |
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.background(Circle().fill(tint.opacity(0.12))) |
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Text(connected ? "Disconnect" : "Connect") |
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.fontWeight(.semibold) |
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.foregroundColor(.primary) |
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Spacer() |
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} |
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.padding(.horizontal, 18) |
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.padding(.vertical, compact ? 10 : 14) |
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.frame(maxWidth: .infinity) |
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.meterCard(tint: tint, fillOpacity: 0.14, strokeOpacity: 0.20) |
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} |
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.buttonStyle(.plain) |
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} |
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} |
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} |
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fileprivate func meterSheetButton(icon: String, title: String, tint: Color, width: CGFloat, height: CGFloat, compact: Bool = false, action: @escaping () -> Void) -> some View {
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Button(action: action) {
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VStack(spacing: compact ? 8 : 10) {
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Image(systemName: icon) |
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.font(.system(size: compact ? 18 : 20, weight: .semibold)) |
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.frame(width: compact ? 34 : 40, height: compact ? 34 : 40) |
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.background(Circle().fill(tint.opacity(0.14))) |
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Text(title) |
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.font((compact ? Font.caption : .footnote).weight(.semibold)) |
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.multilineTextAlignment(.center) |
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.lineLimit(2) |
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.minimumScaleFactor(0.9) |
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} |
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.foregroundColor(tint) |
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.frame(width: width, height: height) |
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.contentShape(Rectangle()) |
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} |
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.buttonStyle(.plain) |
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} |
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private var visibleActionButtonCount: CGFloat {
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meter.supportsRecordingView ? 3 : 2 |
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} |
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private func actionButtonWidth(for availableWidth: CGFloat) -> CGFloat {
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let dividerWidth = actionDividerWidth * max(visibleActionButtonCount - 1, 0) |
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let contentWidth = availableWidth - (actionStripPadding * 2) - dividerWidth |
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let fittedWidth = floor(contentWidth / visibleActionButtonCount) |
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return min(actionButtonMaxWidth, max(actionButtonMinWidth, fittedWidth)) |
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} |
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private func actionStripWidth(for buttonWidth: CGFloat) -> CGFloat {
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let dividerWidth = actionDividerWidth * max(visibleActionButtonCount - 1, 0) |
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return (buttonWidth * visibleActionButtonCount) + dividerWidth + (actionStripPadding * 2) |
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} |
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private func actionStripDivider(height: CGFloat) -> some View {
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Rectangle() |
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.fill(Color.secondary.opacity(0.16)) |
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.frame(width: actionDividerWidth, height: max(44, height - 22)) |
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} |
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private var statusBadge: some View {
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Text(statusText) |
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.font(.caption.weight(.bold)) |
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.padding(.horizontal, 12) |
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.padding(.vertical, 6) |
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.meterCard(tint: statusColor, fillOpacity: 0.24, strokeOpacity: 0.30, cornerRadius: 999) |
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} |
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private var connectActionTint: Color {
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Color(red: 0.20, green: 0.46, blue: 0.43) |
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} |
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private var disconnectActionTint: Color {
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Color(red: 0.66, green: 0.39, blue: 0.35) |
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} |
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private var statusText: String {
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switch meter.operationalState {
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case .notPresent: |
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return "Missing" |
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case .peripheralNotConnected: |
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return "Ready" |
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case .peripheralConnectionPending: |
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return "Connecting" |
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case .peripheralConnected: |
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return "Linked" |
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case .peripheralReady: |
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return "Preparing" |
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case .comunicating: |
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return "Syncing" |
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case .dataIsAvailable: |
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return "Live" |
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} |
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} |
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private var statusColor: Color {
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Meter.operationalColor(for: meter.operationalState) |
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} |
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} |
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private struct MeterInfoView: View {
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@EnvironmentObject private var meter: Meter |
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var body: some View {
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ScrollView {
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VStack(spacing: 14) {
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MeterInfoCard(title: "Overview", tint: meter.color) {
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MeterInfoRow(label: "Name", value: meter.name) |
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MeterInfoRow(label: "Displayed Model", value: meter.deviceModelSummary) |
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MeterInfoRow(label: "Advertised Model", value: meter.modelString) |
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MeterInfoRow(label: "Working Voltage", value: meter.documentedWorkingVoltage) |
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MeterInfoRow(label: "Temperature Unit", value: meter.temperatureUnitDescription) |
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} |
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MeterInfoCard(title: "Identifiers", tint: .blue) {
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MeterInfoRow(label: "MAC", value: meter.btSerial.macAddress.description) |
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if meter.modelNumber != 0 {
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MeterInfoRow(label: "Model Code", value: "\(meter.modelNumber)") |
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} |
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} |
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MeterInfoCard(title: "Screen Reporting", tint: .orange) {
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if meter.reportsCurrentScreenIndex {
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MeterInfoRow(label: "Current Screen", value: meter.currentScreenDescription) |
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Text("The active screen index is reported by the meter and mapped by the app to a known label.")
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.font(.footnote) |
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.foregroundColor(.secondary) |
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} else {
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MeterInfoRow(label: "Current Screen", value: "Not Reported") |
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Text("The current screen is not reported by the device payload, or we have not yet identified where and how the protocol announces it.")
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.font(.footnote) |
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.foregroundColor(.secondary) |
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} |
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} |
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if meter.operationalState == .dataIsAvailable {
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MeterInfoCard(title: "Live Device Details", tint: .indigo) {
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if !meter.firmwareVersion.isEmpty {
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MeterInfoRow(label: "Firmware", value: meter.firmwareVersion) |
|
| 429 |
} |
|
| 430 |
if meter.serialNumber != 0 {
|
|
| 431 |
MeterInfoRow(label: "Serial", value: "\(meter.serialNumber)") |
|
| 432 |
} |
|
| 433 |
if meter.bootCount != 0 {
|
|
| 434 |
MeterInfoRow(label: "Boot Count", value: "\(meter.bootCount)") |
|
| 435 |
} |
|
| 436 |
} |
|
| 437 |
} else {
|
|
| 438 |
MeterInfoCard(title: "Live Device Details", tint: .secondary) {
|
|
| 439 |
Text("Connect to the meter to load firmware, serial, and boot details.")
|
|
| 440 |
.font(.footnote) |
|
| 441 |
.foregroundColor(.secondary) |
|
| 442 |
} |
|
| 443 |
} |
|
| 444 |
} |
|
| 445 |
.padding() |
|
| 446 |
} |
|
| 447 |
.background( |
|
| 448 |
LinearGradient( |
|
| 449 |
colors: [meter.color.opacity(0.14), Color.clear], |
|
| 450 |
startPoint: .topLeading, |
|
| 451 |
endPoint: .bottomTrailing |
|
| 452 |
) |
|
| 453 |
.ignoresSafeArea() |
|
| 454 |
) |
|
| 455 |
.navigationBarTitle("Meter Info")
|
|
| 456 |
.navigationBarItems(trailing: RSSIView(RSSI: meter.btSerial.RSSI).frame(width: 18, height: 18)) |
|
| 457 |
} |
|
| 458 |
} |
|
| 459 | ||
| 460 |
private struct MeterInfoCard<Content: View>: View {
|
|
| 461 |
let title: String |
|
| 462 |
let tint: Color |
|
| 463 |
@ViewBuilder var content: Content |
|
| 464 | ||
| 465 |
var body: some View {
|
|
| 466 |
VStack(alignment: .leading, spacing: 12) {
|
|
| 467 |
Text(title) |
|
| 468 |
.font(.headline) |
|
| 469 |
content |
|
| 470 |
} |
|
| 471 |
.frame(maxWidth: .infinity, alignment: .leading) |
|
| 472 |
.padding(18) |
|
| 473 |
.meterCard(tint: tint, fillOpacity: 0.18, strokeOpacity: 0.24) |
|
| 474 |
} |
|
| 475 |
} |
|
| 476 | ||
| 477 |
private struct MeterInfoRow: View {
|
|
| 478 |
let label: String |
|
| 479 |
let value: String |
|
| 480 | ||
| 481 |
var body: some View {
|
|
| 482 |
HStack {
|
|
| 483 |
Text(label) |
|
| 484 |
Spacer() |
|
| 485 |
Text(value) |
|
| 486 |
.foregroundColor(.secondary) |
|
| 487 |
.multilineTextAlignment(.trailing) |
|
| 488 |
} |
|
| 489 |
.font(.footnote) |
|
| 490 |
} |
|
| 491 |
} |