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// |
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// MeasurementChartView.swift |
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// USB Meter |
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// |
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// Created by Bogdan Timofte on 06/05/2020. |
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// Copyright © 2020 Bogdan Timofte. All rights reserved. |
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// |
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import SwiftUI |
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private enum PresentTrackingMode: CaseIterable, Hashable {
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case keepDuration |
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case keepStartTimestamp |
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} |
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struct MeasurementChartView: View {
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private enum SeriesKind {
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case power |
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case voltage |
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case current |
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case temperature |
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var unit: String {
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switch self {
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case .power: return "W" |
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case .voltage: return "V" |
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case .current: return "A" |
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case .temperature: return "" |
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} |
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} |
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var tint: Color {
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switch self {
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case .power: return .red |
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case .voltage: return .green |
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case .current: return .blue |
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case .temperature: return .orange |
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} |
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} |
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} |
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private struct SeriesData {
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let kind: SeriesKind |
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let points: [Measurements.Measurement.Point] |
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let samplePoints: [Measurements.Measurement.Point] |
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let context: ChartContext |
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let autoLowerBound: Double |
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let autoUpperBound: Double |
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let maximumSampleValue: Double? |
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} |
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private let minimumTimeSpan: TimeInterval = 1 |
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private let minimumVoltageSpan = 0.5 |
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private let minimumCurrentSpan = 0.5 |
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private let minimumPowerSpan = 0.5 |
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private let minimumTemperatureSpan = 1.0 |
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private let defaultEmptyChartTimeSpan: TimeInterval = 60 |
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let compactLayout: Bool |
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let availableSize: CGSize |
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@EnvironmentObject private var measurements: Measurements |
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@Environment(\.horizontalSizeClass) private var horizontalSizeClass |
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@Environment(\.verticalSizeClass) private var verticalSizeClass |
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var timeRange: ClosedRange<Date>? = nil |
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@State var displayVoltage: Bool = false |
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@State var displayCurrent: Bool = false |
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@State var displayPower: Bool = true |
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@State var displayTemperature: Bool = false |
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@State private var showResetConfirmation: Bool = false |
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@State private var chartNow: Date = Date() |
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@State private var selectedVisibleTimeRange: ClosedRange<Date>? |
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@State private var isPinnedToPresent: Bool = false |
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@State private var presentTrackingMode: PresentTrackingMode = .keepDuration |
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@State private var pinOrigin: Bool = false |
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@State private var useSharedOrigin: Bool = false |
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@State private var sharedAxisOrigin: Double = 0 |
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@State private var sharedAxisUpperBound: Double = 1 |
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@State private var powerAxisOrigin: Double = 0 |
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@State private var voltageAxisOrigin: Double = 0 |
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@State private var currentAxisOrigin: Double = 0 |
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@State private var temperatureAxisOrigin: Double = 0 |
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let xLabels: Int = 4 |
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let yLabels: Int = 4 |
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init( |
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compactLayout: Bool = false, |
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availableSize: CGSize = .zero, |
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timeRange: ClosedRange<Date>? = nil |
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) {
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self.compactLayout = compactLayout |
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self.availableSize = availableSize |
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self.timeRange = timeRange |
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} |
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private var axisColumnWidth: CGFloat {
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if compactLayout {
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return 38 |
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} |
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return isLargeDisplay ? 62 : 46 |
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} |
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private var chartSectionSpacing: CGFloat {
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compactLayout ? 6 : 8 |
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} |
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private var xAxisHeight: CGFloat {
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if compactLayout {
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return 24 |
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} |
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return isLargeDisplay ? 36 : 28 |
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} |
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private var isPortraitLayout: Bool {
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guard availableSize != .zero else { return verticalSizeClass != .compact }
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return availableSize.height >= availableSize.width |
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} |
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private var isIPhone: Bool {
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#if os(iOS) |
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return UIDevice.current.userInterfaceIdiom == .phone |
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#else |
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return false |
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#endif |
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} |
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private enum OriginControlsPlacement {
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case aboveXAxisLegend |
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case overXAxisLegend |
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case belowXAxisLegend |
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} |
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private var originControlsPlacement: OriginControlsPlacement {
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if isIPhone {
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return isPortraitLayout ? .aboveXAxisLegend : .overXAxisLegend |
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} |
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return .belowXAxisLegend |
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} |
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private var plotSectionHeight: CGFloat {
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if availableSize == .zero {
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return compactLayout ? 300 : 380 |
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} |
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if isPortraitLayout {
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// Keep the rendered plot area (plot section minus X axis) above half of the display height. |
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let minimumPlotHeight = max(availableSize.height * 0.52, compactLayout ? 250 : 320) |
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return minimumPlotHeight + xAxisHeight |
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} |
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if compactLayout {
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return min(max(availableSize.height * 0.36, 240), 300) |
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} |
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return min(max(availableSize.height * 0.5, 300), 440) |
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} |
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private var stackedToolbarLayout: Bool {
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if availableSize.width > 0 {
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return availableSize.width < 640 |
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} |
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return horizontalSizeClass == .compact && verticalSizeClass != .compact |
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} |
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private var showsLabeledOriginControls: Bool {
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!compactLayout && !stackedToolbarLayout |
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} |
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private var isLargeDisplay: Bool {
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#if os(iOS) |
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if UIDevice.current.userInterfaceIdiom == .phone {
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return false |
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} |
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#endif |
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if availableSize.width > 0 {
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return availableSize.width >= 900 || availableSize.height >= 700 |
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} |
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return !compactLayout && horizontalSizeClass == .regular && verticalSizeClass == .regular |
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} |
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private var chartBaseFont: Font {
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if isIPhone && isPortraitLayout {
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return .caption |
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} |
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return isLargeDisplay ? .callout : .footnote |
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} |
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private var usesCompactLandscapeOriginControls: Bool {
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isIPhone && !isPortraitLayout && availableSize.width > 0 && availableSize.width <= 740 |
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} |
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var body: some View {
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let availableTimeRange = availableSelectionTimeRange() |
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let visibleTimeRange = resolvedVisibleTimeRange(within: availableTimeRange) |
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let powerSeries = series( |
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for: measurements.power, |
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kind: .power, |
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minimumYSpan: minimumPowerSpan, |
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visibleTimeRange: visibleTimeRange |
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) |
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let voltageSeries = series( |
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for: measurements.voltage, |
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kind: .voltage, |
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minimumYSpan: minimumVoltageSpan, |
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visibleTimeRange: visibleTimeRange |
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) |
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let currentSeries = series( |
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for: measurements.current, |
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kind: .current, |
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minimumYSpan: minimumCurrentSpan, |
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visibleTimeRange: visibleTimeRange |
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) |
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let temperatureSeries = series( |
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for: measurements.temperature, |
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kind: .temperature, |
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minimumYSpan: minimumTemperatureSpan, |
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visibleTimeRange: visibleTimeRange |
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) |
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let primarySeries = displayedPrimarySeries( |
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powerSeries: powerSeries, |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries |
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) |
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let selectorSeries = primarySeries.map { overviewSeries(for: $0.kind) }
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Group {
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if let primarySeries {
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VStack(alignment: .leading, spacing: 12) {
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chartToggleBar() |
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GeometryReader { geometry in
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let plotHeight = max(geometry.size.height - xAxisHeight, compactLayout ? 180 : 220) |
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VStack(spacing: 6) {
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HStack(spacing: chartSectionSpacing) {
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primaryAxisView( |
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height: plotHeight, |
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powerSeries: powerSeries, |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries |
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) |
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.frame(width: axisColumnWidth, height: plotHeight) |
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ZStack {
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RoundedRectangle(cornerRadius: 18, style: .continuous) |
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.fill(Color.primary.opacity(0.05)) |
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RoundedRectangle(cornerRadius: 18, style: .continuous) |
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.stroke(Color.secondary.opacity(0.16), lineWidth: 1) |
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horizontalGuides(context: primarySeries.context) |
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verticalGuides(context: primarySeries.context) |
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discontinuityMarkers(points: primarySeries.points, context: primarySeries.context) |
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renderedChart( |
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powerSeries: powerSeries, |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries, |
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temperatureSeries: temperatureSeries |
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) |
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} |
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.clipShape(RoundedRectangle(cornerRadius: 18, style: .continuous)) |
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.frame(maxWidth: .infinity) |
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.frame(height: plotHeight) |
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secondaryAxisView( |
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height: plotHeight, |
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powerSeries: powerSeries, |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries, |
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temperatureSeries: temperatureSeries |
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) |
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.frame(width: axisColumnWidth, height: plotHeight) |
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} |
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.overlay(alignment: .bottom) {
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if originControlsPlacement == .aboveXAxisLegend {
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scaleControlsPill( |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries |
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) |
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.padding(.bottom, compactLayout ? 6 : 10) |
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} |
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} |
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switch originControlsPlacement {
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case .aboveXAxisLegend: |
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xAxisLabelsView(context: primarySeries.context) |
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.frame(height: xAxisHeight) |
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case .overXAxisLegend: |
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xAxisLabelsView(context: primarySeries.context) |
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.frame(height: xAxisHeight) |
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.overlay(alignment: .center) {
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scaleControlsPill( |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries |
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) |
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.offset(y: usesCompactLandscapeOriginControls ? 2 : (compactLayout ? 8 : 10)) |
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} |
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case .belowXAxisLegend: |
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xAxisLabelsView(context: primarySeries.context) |
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.frame(height: xAxisHeight) |
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HStack {
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Spacer(minLength: 0) |
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scaleControlsPill( |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries |
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) |
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Spacer(minLength: 0) |
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} |
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} |
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if let availableTimeRange, |
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let selectorSeries, |
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shouldShowRangeSelector( |
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availableTimeRange: availableTimeRange, |
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series: selectorSeries |
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) {
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TimeRangeSelectorView( |
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points: selectorSeries.points, |
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context: selectorSeries.context, |
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availableTimeRange: availableTimeRange, |
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accentColor: selectorSeries.kind.tint, |
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compactLayout: compactLayout, |
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minimumSelectionSpan: minimumTimeSpan, |
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selectedTimeRange: $selectedVisibleTimeRange, |
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isPinnedToPresent: $isPinnedToPresent, |
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presentTrackingMode: $presentTrackingMode |
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) |
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} |
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} |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top) |
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} |
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.frame(height: plotSectionHeight) |
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} |
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} else {
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VStack(alignment: .leading, spacing: 12) {
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chartToggleBar() |
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Text("Select at least one measurement series.")
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.foregroundColor(.secondary) |
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} |
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} |
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} |
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.font(chartBaseFont) |
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
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.onReceive(Timer.publish(every: 1, on: .main, in: .common).autoconnect()) { now in
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guard timeRange == nil else { return }
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chartNow = now |
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} |
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} |
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private func chartToggleBar() -> some View {
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let condensedLayout = compactLayout || verticalSizeClass == .compact |
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let sectionSpacing: CGFloat = condensedLayout ? 8 : (isLargeDisplay ? 12 : 10) |
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let controlsPanel = HStack(alignment: .center, spacing: sectionSpacing) {
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seriesToggleRow(condensedLayout: condensedLayout) |
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} |
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.padding(.horizontal, condensedLayout ? 10 : (isLargeDisplay ? 14 : 12)) |
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.padding(.vertical, condensedLayout ? 8 : (isLargeDisplay ? 12 : 10)) |
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.background( |
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RoundedRectangle(cornerRadius: condensedLayout ? 14 : 16, style: .continuous) |
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.fill(Color.primary.opacity(0.045)) |
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) |
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.overlay( |
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RoundedRectangle(cornerRadius: condensedLayout ? 14 : 16, style: .continuous) |
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.stroke(Color.secondary.opacity(0.14), lineWidth: 1) |
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) |
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return Group {
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if stackedToolbarLayout {
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VStack(alignment: .leading, spacing: condensedLayout ? 8 : 10) {
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controlsPanel |
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HStack {
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Spacer(minLength: 0) |
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resetBufferButton(condensedLayout: condensedLayout) |
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} |
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} |
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} else {
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HStack(alignment: .top, spacing: isLargeDisplay ? 14 : 12) {
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controlsPanel |
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Spacer(minLength: 0) |
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resetBufferButton(condensedLayout: condensedLayout) |
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} |
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} |
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} |
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.frame(maxWidth: .infinity, alignment: .leading) |
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} |
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private var shouldFloatScaleControlsOverChart: Bool {
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#if os(iOS) |
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if availableSize.width > 0, availableSize.height > 0 {
|
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return availableSize.width > availableSize.height |
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} |
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return horizontalSizeClass != .compact && verticalSizeClass == .compact |
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#else |
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return false |
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#endif |
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} |
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private func scaleControlsPill( |
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voltageSeries: SeriesData, |
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currentSeries: SeriesData |
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) -> some View {
|
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let condensedLayout = compactLayout || verticalSizeClass == .compact |
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let showsCardBackground = !(isIPhone && isPortraitLayout) && !shouldFloatScaleControlsOverChart |
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let horizontalPadding: CGFloat = usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 10 : (isLargeDisplay ? 12 : 10)) |
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let verticalPadding: CGFloat = usesCompactLandscapeOriginControls ? 5 : (condensedLayout ? 8 : (isLargeDisplay ? 10 : 8)) |
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return originControlsRow( |
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voltageSeries: voltageSeries, |
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currentSeries: currentSeries, |
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condensedLayout: condensedLayout, |
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showsLabel: !shouldFloatScaleControlsOverChart && showsLabeledOriginControls |
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) |
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.padding(.horizontal, horizontalPadding) |
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.padding(.vertical, verticalPadding) |
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.background( |
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Capsule(style: .continuous) |
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.fill(showsCardBackground ? Color.primary.opacity(0.08) : Color.clear) |
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) |
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.overlay( |
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Capsule(style: .continuous) |
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.stroke( |
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showsCardBackground ? Color.secondary.opacity(0.18) : Color.clear, |
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lineWidth: 1 |
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) |
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) |
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} |
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| 432 | ||
| 433 |
private func seriesToggleRow(condensedLayout: Bool) -> some View {
|
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HStack(spacing: condensedLayout ? 6 : 8) {
|
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seriesToggleButton(title: "Voltage", isOn: displayVoltage, condensedLayout: condensedLayout) {
|
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displayVoltage.toggle() |
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if displayVoltage {
|
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displayPower = false |
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if displayTemperature && displayCurrent {
|
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displayCurrent = false |
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} |
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} |
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| 443 |
} |
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| 444 | ||
| 445 |
seriesToggleButton(title: "Current", isOn: displayCurrent, condensedLayout: condensedLayout) {
|
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displayCurrent.toggle() |
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| 447 |
if displayCurrent {
|
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displayPower = false |
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| 449 |
if displayTemperature && displayVoltage {
|
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displayVoltage = false |
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} |
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| 452 |
} |
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| 453 |
} |
|
| 454 | ||
| 455 |
seriesToggleButton(title: "Power", isOn: displayPower, condensedLayout: condensedLayout) {
|
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displayPower.toggle() |
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if displayPower {
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displayCurrent = false |
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displayVoltage = false |
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} |
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| 461 |
} |
|
| 462 | ||
| 463 |
seriesToggleButton(title: "Temp", isOn: displayTemperature, condensedLayout: condensedLayout) {
|
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| 464 |
displayTemperature.toggle() |
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| 465 |
if displayTemperature && displayVoltage && displayCurrent {
|
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displayCurrent = false |
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} |
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} |
|
| 469 |
} |
|
| 470 |
} |
|
| 471 | ||
| 472 |
private func originControlsRow( |
|
| 473 |
voltageSeries: SeriesData, |
|
| 474 |
currentSeries: SeriesData, |
|
| 475 |
condensedLayout: Bool, |
|
| 476 |
showsLabel: Bool |
|
| 477 |
) -> some View {
|
|
| 478 |
HStack(spacing: usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 8 : 10)) {
|
|
| 479 |
if supportsSharedOrigin {
|
|
| 480 |
symbolControlChip( |
|
| 481 |
systemImage: "equal.circle", |
|
| 482 |
enabled: true, |
|
| 483 |
active: useSharedOrigin, |
|
| 484 |
condensedLayout: condensedLayout, |
|
| 485 |
showsLabel: showsLabel, |
|
| 486 |
label: "Match Y Scale", |
|
| 487 |
accessibilityLabel: "Match Y scale" |
|
| 488 |
) {
|
|
| 489 |
toggleSharedOrigin( |
|
| 490 |
voltageSeries: voltageSeries, |
|
| 491 |
currentSeries: currentSeries |
|
| 492 |
) |
|
| 493 |
} |
|
| 494 |
} |
|
| 495 | ||
| 496 |
symbolControlChip( |
|
| 497 |
systemImage: pinOrigin ? "pin.fill" : "pin.slash", |
|
| 498 |
enabled: true, |
|
| 499 |
active: pinOrigin, |
|
| 500 |
condensedLayout: condensedLayout, |
|
| 501 |
showsLabel: showsLabel, |
|
| 502 |
label: pinOrigin ? "Origin Locked" : "Origin Auto", |
|
| 503 |
accessibilityLabel: pinOrigin ? "Unlock origin" : "Lock origin" |
|
| 504 |
) {
|
|
| 505 |
togglePinnedOrigin( |
|
| 506 |
voltageSeries: voltageSeries, |
|
| 507 |
currentSeries: currentSeries |
|
| 508 |
) |
|
| 509 |
} |
|
| 510 | ||
| 511 |
if !pinnedOriginIsZero {
|
|
| 512 |
symbolControlChip( |
|
| 513 |
systemImage: "0.circle", |
|
| 514 |
enabled: true, |
|
| 515 |
active: false, |
|
| 516 |
condensedLayout: condensedLayout, |
|
| 517 |
showsLabel: showsLabel, |
|
| 518 |
label: "Origin 0", |
|
| 519 |
accessibilityLabel: "Set origin to zero" |
|
| 520 |
) {
|
|
| 521 |
setVisibleOriginsToZero() |
|
| 522 |
} |
|
| 523 |
} |
|
| 524 | ||
| 525 |
} |
|
| 526 |
} |
|
| 527 | ||
| 528 |
private func seriesToggleButton( |
|
| 529 |
title: String, |
|
| 530 |
isOn: Bool, |
|
| 531 |
condensedLayout: Bool, |
|
| 532 |
action: @escaping () -> Void |
|
| 533 |
) -> some View {
|
|
| 534 |
Button(action: action) {
|
|
| 535 |
Text(title) |
|
| 536 |
.font(seriesToggleFont(condensedLayout: condensedLayout)) |
|
| 537 |
.lineLimit(1) |
|
| 538 |
.minimumScaleFactor(0.82) |
|
| 539 |
.foregroundColor(isOn ? .white : .blue) |
|
| 540 |
.padding(.horizontal, condensedLayout ? 10 : (isLargeDisplay ? 16 : 12)) |
|
| 541 |
.padding(.vertical, condensedLayout ? 7 : (isLargeDisplay ? 10 : 8)) |
|
| 542 |
.frame(minWidth: condensedLayout ? 0 : (isLargeDisplay ? 104 : 84)) |
|
| 543 |
.frame(maxWidth: stackedToolbarLayout ? .infinity : nil) |
|
| 544 |
.background( |
|
| 545 |
RoundedRectangle(cornerRadius: condensedLayout ? 13 : 15, style: .continuous) |
|
| 546 |
.fill(isOn ? Color.blue.opacity(0.88) : Color.blue.opacity(0.12)) |
|
| 547 |
) |
|
| 548 |
.overlay( |
|
| 549 |
RoundedRectangle(cornerRadius: condensedLayout ? 13 : 15, style: .continuous) |
|
| 550 |
.stroke(Color.blue, lineWidth: 1.5) |
|
| 551 |
) |
|
| 552 |
} |
|
| 553 |
.buttonStyle(.plain) |
|
| 554 |
} |
|
| 555 | ||
| 556 |
private func symbolControlChip( |
|
| 557 |
systemImage: String, |
|
| 558 |
enabled: Bool, |
|
| 559 |
active: Bool, |
|
| 560 |
condensedLayout: Bool, |
|
| 561 |
showsLabel: Bool, |
|
| 562 |
label: String, |
|
| 563 |
accessibilityLabel: String, |
|
| 564 |
action: @escaping () -> Void |
|
| 565 |
) -> some View {
|
|
| 566 |
Button(action: {
|
|
| 567 |
action() |
|
| 568 |
}) {
|
|
| 569 |
Group {
|
|
| 570 |
if showsLabel {
|
|
| 571 |
Label(label, systemImage: systemImage) |
|
| 572 |
.font(controlChipFont(condensedLayout: condensedLayout)) |
|
| 573 |
.padding(.horizontal, usesCompactLandscapeOriginControls ? 8 : (condensedLayout ? 10 : 12)) |
|
| 574 |
.padding(.vertical, usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 7 : (isLargeDisplay ? 9 : 8))) |
|
| 575 |
} else {
|
|
| 576 |
Image(systemName: systemImage) |
|
| 577 |
.font(.system(size: usesCompactLandscapeOriginControls ? 13 : (condensedLayout ? 15 : (isLargeDisplay ? 18 : 16)), weight: .semibold)) |
|
| 578 |
.frame( |
|
| 579 |
width: usesCompactLandscapeOriginControls ? 30 : (condensedLayout ? 34 : (isLargeDisplay ? 42 : 38)), |
|
| 580 |
height: usesCompactLandscapeOriginControls ? 30 : (condensedLayout ? 34 : (isLargeDisplay ? 42 : 38)) |
|
| 581 |
) |
|
| 582 |
} |
|
| 583 |
} |
|
| 584 |
.background( |
|
| 585 |
Capsule(style: .continuous) |
|
| 586 |
.fill(active ? Color.orange.opacity(0.18) : Color.secondary.opacity(0.10)) |
|
| 587 |
) |
|
| 588 |
} |
|
| 589 |
.buttonStyle(.plain) |
|
| 590 |
.foregroundColor(enabled ? .primary : .secondary) |
|
| 591 |
.opacity(enabled ? 1 : 0.55) |
|
| 592 |
.accessibilityLabel(accessibilityLabel) |
|
| 593 |
} |
|
| 594 | ||
| 595 |
private func resetBufferButton(condensedLayout: Bool) -> some View {
|
|
| 596 |
Button(action: {
|
|
| 597 |
showResetConfirmation = true |
|
| 598 |
}) {
|
|
| 599 |
Label(condensedLayout ? "Reset" : "Reset Buffer", systemImage: "trash") |
|
| 600 |
.font(controlChipFont(condensedLayout: condensedLayout)) |
|
| 601 |
.padding(.horizontal, condensedLayout ? 14 : 16) |
|
| 602 |
.padding(.vertical, condensedLayout ? 10 : (isLargeDisplay ? 12 : 11)) |
|
| 603 |
} |
|
| 604 |
.buttonStyle(.plain) |
|
| 605 |
.foregroundColor(.white) |
|
| 606 |
.background( |
|
| 607 |
Capsule(style: .continuous) |
|
| 608 |
.fill(Color.red.opacity(0.8)) |
|
| 609 |
) |
|
| 610 |
.fixedSize(horizontal: true, vertical: false) |
|
| 611 |
.confirmationDialog("Reset captured measurements?", isPresented: $showResetConfirmation, titleVisibility: .visible) {
|
|
| 612 |
Button("Reset series", role: .destructive) {
|
|
| 613 |
measurements.resetSeries() |
|
| 614 |
} |
|
| 615 |
Button("Cancel", role: .cancel) {}
|
|
| 616 |
} |
|
| 617 |
} |
|
| 618 | ||
| 619 |
private func seriesToggleFont(condensedLayout: Bool) -> Font {
|
|
| 620 |
if isLargeDisplay {
|
|
| 621 |
return .body.weight(.semibold) |
|
| 622 |
} |
|
| 623 |
return (condensedLayout ? Font.callout : .body).weight(.semibold) |
|
| 624 |
} |
|
| 625 | ||
| 626 |
private func controlChipFont(condensedLayout: Bool) -> Font {
|
|
| 627 |
if isLargeDisplay {
|
|
| 628 |
return .callout.weight(.semibold) |
|
| 629 |
} |
|
| 630 |
return (condensedLayout ? Font.callout : .footnote).weight(.semibold) |
|
| 631 |
} |
|
| 632 | ||
| 633 |
@ViewBuilder |
|
| 634 |
private func primaryAxisView( |
|
| 635 |
height: CGFloat, |
|
| 636 |
powerSeries: SeriesData, |
|
| 637 |
voltageSeries: SeriesData, |
|
| 638 |
currentSeries: SeriesData |
|
| 639 |
) -> some View {
|
|
| 640 |
if displayPower {
|
|
| 641 |
yAxisLabelsView( |
|
| 642 |
height: height, |
|
| 643 |
context: powerSeries.context, |
|
| 644 |
seriesKind: .power, |
|
| 645 |
measurementUnit: powerSeries.kind.unit, |
|
| 646 |
tint: powerSeries.kind.tint |
|
| 647 |
) |
|
| 648 |
} else if displayVoltage {
|
|
| 649 |
yAxisLabelsView( |
|
| 650 |
height: height, |
|
| 651 |
context: voltageSeries.context, |
|
| 652 |
seriesKind: .voltage, |
|
| 653 |
measurementUnit: voltageSeries.kind.unit, |
|
| 654 |
tint: voltageSeries.kind.tint |
|
| 655 |
) |
|
| 656 |
} else if displayCurrent {
|
|
| 657 |
yAxisLabelsView( |
|
| 658 |
height: height, |
|
| 659 |
context: currentSeries.context, |
|
| 660 |
seriesKind: .current, |
|
| 661 |
measurementUnit: currentSeries.kind.unit, |
|
| 662 |
tint: currentSeries.kind.tint |
|
| 663 |
) |
|
| 664 |
} |
|
| 665 |
} |
|
| 666 | ||
| 667 |
@ViewBuilder |
|
| 668 |
private func renderedChart( |
|
| 669 |
powerSeries: SeriesData, |
|
| 670 |
voltageSeries: SeriesData, |
|
| 671 |
currentSeries: SeriesData, |
|
| 672 |
temperatureSeries: SeriesData |
|
| 673 |
) -> some View {
|
|
| 674 |
if self.displayPower {
|
|
| 675 |
Chart(points: powerSeries.points, context: powerSeries.context, strokeColor: .red) |
|
| 676 |
.opacity(0.72) |
|
| 677 |
} else {
|
|
| 678 |
if self.displayVoltage {
|
|
| 679 |
Chart(points: voltageSeries.points, context: voltageSeries.context, strokeColor: .green) |
|
| 680 |
.opacity(0.78) |
|
| 681 |
} |
|
| 682 |
if self.displayCurrent {
|
|
| 683 |
Chart(points: currentSeries.points, context: currentSeries.context, strokeColor: .blue) |
|
| 684 |
.opacity(0.78) |
|
| 685 |
} |
|
| 686 |
} |
|
| 687 | ||
| 688 |
if displayTemperature {
|
|
| 689 |
Chart(points: temperatureSeries.points, context: temperatureSeries.context, strokeColor: .orange) |
|
| 690 |
.opacity(0.86) |
|
| 691 |
} |
|
| 692 |
} |
|
| 693 | ||
| 694 |
@ViewBuilder |
|
| 695 |
private func secondaryAxisView( |
|
| 696 |
height: CGFloat, |
|
| 697 |
powerSeries: SeriesData, |
|
| 698 |
voltageSeries: SeriesData, |
|
| 699 |
currentSeries: SeriesData, |
|
| 700 |
temperatureSeries: SeriesData |
|
| 701 |
) -> some View {
|
|
| 702 |
if displayTemperature {
|
|
| 703 |
yAxisLabelsView( |
|
| 704 |
height: height, |
|
| 705 |
context: temperatureSeries.context, |
|
| 706 |
seriesKind: .temperature, |
|
| 707 |
measurementUnit: measurementUnit(for: .temperature), |
|
| 708 |
tint: temperatureSeries.kind.tint |
|
| 709 |
) |
|
| 710 |
} else if displayVoltage && displayCurrent {
|
|
| 711 |
yAxisLabelsView( |
|
| 712 |
height: height, |
|
| 713 |
context: currentSeries.context, |
|
| 714 |
seriesKind: .current, |
|
| 715 |
measurementUnit: currentSeries.kind.unit, |
|
| 716 |
tint: currentSeries.kind.tint |
|
| 717 |
) |
|
| 718 |
} else {
|
|
| 719 |
primaryAxisView( |
|
| 720 |
height: height, |
|
| 721 |
powerSeries: powerSeries, |
|
| 722 |
voltageSeries: voltageSeries, |
|
| 723 |
currentSeries: currentSeries |
|
| 724 |
) |
|
| 725 |
} |
|
| 726 |
} |
|
| 727 | ||
| 728 |
private func displayedPrimarySeries( |
|
| 729 |
powerSeries: SeriesData, |
|
| 730 |
voltageSeries: SeriesData, |
|
| 731 |
currentSeries: SeriesData |
|
| 732 |
) -> SeriesData? {
|
|
| 733 |
if displayPower {
|
|
| 734 |
return powerSeries |
|
| 735 |
} |
|
| 736 |
if displayVoltage {
|
|
| 737 |
return voltageSeries |
|
| 738 |
} |
|
| 739 |
if displayCurrent {
|
|
| 740 |
return currentSeries |
|
| 741 |
} |
|
| 742 |
return nil |
|
| 743 |
} |
|
| 744 | ||
| 745 |
private func series( |
|
| 746 |
for measurement: Measurements.Measurement, |
|
| 747 |
kind: SeriesKind, |
|
| 748 |
minimumYSpan: Double, |
|
| 749 |
visibleTimeRange: ClosedRange<Date>? = nil |
|
| 750 |
) -> SeriesData {
|
|
| 751 |
let points = filteredPoints( |
|
| 752 |
measurement, |
|
| 753 |
visibleTimeRange: visibleTimeRange |
|
| 754 |
) |
|
| 755 |
let samplePoints = points.filter { $0.isSample }
|
|
| 756 |
let context = ChartContext() |
|
| 757 | ||
| 758 |
let autoBounds = automaticYBounds( |
|
| 759 |
for: samplePoints, |
|
| 760 |
minimumYSpan: minimumYSpan |
|
| 761 |
) |
|
| 762 |
let xBounds = xBounds( |
|
| 763 |
for: samplePoints, |
|
| 764 |
visibleTimeRange: visibleTimeRange |
|
| 765 |
) |
|
| 766 |
let lowerBound = resolvedLowerBound( |
|
| 767 |
for: kind, |
|
| 768 |
autoLowerBound: autoBounds.lowerBound |
|
| 769 |
) |
|
| 770 |
let upperBound = resolvedUpperBound( |
|
| 771 |
for: kind, |
|
| 772 |
lowerBound: lowerBound, |
|
| 773 |
autoUpperBound: autoBounds.upperBound, |
|
| 774 |
maximumSampleValue: samplePoints.map(\.value).max(), |
|
| 775 |
minimumYSpan: minimumYSpan |
|
| 776 |
) |
|
| 777 | ||
| 778 |
context.setBounds( |
|
| 779 |
xMin: CGFloat(xBounds.lowerBound.timeIntervalSince1970), |
|
| 780 |
xMax: CGFloat(xBounds.upperBound.timeIntervalSince1970), |
|
| 781 |
yMin: CGFloat(lowerBound), |
|
| 782 |
yMax: CGFloat(upperBound) |
|
| 783 |
) |
|
| 784 | ||
| 785 |
return SeriesData( |
|
| 786 |
kind: kind, |
|
| 787 |
points: points, |
|
| 788 |
samplePoints: samplePoints, |
|
| 789 |
context: context, |
|
| 790 |
autoLowerBound: autoBounds.lowerBound, |
|
| 791 |
autoUpperBound: autoBounds.upperBound, |
|
| 792 |
maximumSampleValue: samplePoints.map(\.value).max() |
|
| 793 |
) |
|
| 794 |
} |
|
| 795 | ||
| 796 |
private func overviewSeries(for kind: SeriesKind) -> SeriesData {
|
|
| 797 |
series( |
|
| 798 |
for: measurement(for: kind), |
|
| 799 |
kind: kind, |
|
| 800 |
minimumYSpan: minimumYSpan(for: kind) |
|
| 801 |
) |
|
| 802 |
} |
|
| 803 | ||
| 804 |
private func measurement(for kind: SeriesKind) -> Measurements.Measurement {
|
|
| 805 |
switch kind {
|
|
| 806 |
case .power: |
|
| 807 |
return measurements.power |
|
| 808 |
case .voltage: |
|
| 809 |
return measurements.voltage |
|
| 810 |
case .current: |
|
| 811 |
return measurements.current |
|
| 812 |
case .temperature: |
|
| 813 |
return measurements.temperature |
|
| 814 |
} |
|
| 815 |
} |
|
| 816 | ||
| 817 |
private func minimumYSpan(for kind: SeriesKind) -> Double {
|
|
| 818 |
switch kind {
|
|
| 819 |
case .power: |
|
| 820 |
return minimumPowerSpan |
|
| 821 |
case .voltage: |
|
| 822 |
return minimumVoltageSpan |
|
| 823 |
case .current: |
|
| 824 |
return minimumCurrentSpan |
|
| 825 |
case .temperature: |
|
| 826 |
return minimumTemperatureSpan |
|
| 827 |
} |
|
| 828 |
} |
|
| 829 | ||
| 830 |
private var supportsSharedOrigin: Bool {
|
|
| 831 |
displayVoltage && displayCurrent && !displayPower |
|
| 832 |
} |
|
| 833 | ||
| 834 |
private var minimumSharedScaleSpan: Double {
|
|
| 835 |
max(minimumVoltageSpan, minimumCurrentSpan) |
|
| 836 |
} |
|
| 837 | ||
| 838 |
private var pinnedOriginIsZero: Bool {
|
|
| 839 |
if useSharedOrigin && supportsSharedOrigin {
|
|
| 840 |
return pinOrigin && sharedAxisOrigin == 0 |
|
| 841 |
} |
|
| 842 | ||
| 843 |
if displayPower {
|
|
| 844 |
return pinOrigin && powerAxisOrigin == 0 |
|
| 845 |
} |
|
| 846 | ||
| 847 |
let visibleOrigins = [ |
|
| 848 |
displayVoltage ? voltageAxisOrigin : nil, |
|
| 849 |
displayCurrent ? currentAxisOrigin : nil |
|
| 850 |
] |
|
| 851 |
.compactMap { $0 }
|
|
| 852 | ||
| 853 |
guard !visibleOrigins.isEmpty else { return false }
|
|
| 854 |
return pinOrigin && visibleOrigins.allSatisfy { $0 == 0 }
|
|
| 855 |
} |
|
| 856 | ||
| 857 |
private func toggleSharedOrigin( |
|
| 858 |
voltageSeries: SeriesData, |
|
| 859 |
currentSeries: SeriesData |
|
| 860 |
) {
|
|
| 861 |
guard supportsSharedOrigin else { return }
|
|
| 862 | ||
| 863 |
if useSharedOrigin {
|
|
| 864 |
useSharedOrigin = false |
|
| 865 |
return |
|
| 866 |
} |
|
| 867 | ||
| 868 |
captureCurrentOrigins( |
|
| 869 |
voltageSeries: voltageSeries, |
|
| 870 |
currentSeries: currentSeries |
|
| 871 |
) |
|
| 872 |
sharedAxisOrigin = min(voltageAxisOrigin, currentAxisOrigin) |
|
| 873 |
sharedAxisUpperBound = max(voltageSeries.autoUpperBound, currentSeries.autoUpperBound) |
|
| 874 |
ensureSharedScaleSpan() |
|
| 875 |
useSharedOrigin = true |
|
| 876 |
pinOrigin = true |
|
| 877 |
} |
|
| 878 | ||
| 879 |
private func togglePinnedOrigin( |
|
| 880 |
voltageSeries: SeriesData, |
|
| 881 |
currentSeries: SeriesData |
|
| 882 |
) {
|
|
| 883 |
if pinOrigin {
|
|
| 884 |
pinOrigin = false |
|
| 885 |
return |
|
| 886 |
} |
|
| 887 | ||
| 888 |
captureCurrentOrigins( |
|
| 889 |
voltageSeries: voltageSeries, |
|
| 890 |
currentSeries: currentSeries |
|
| 891 |
) |
|
| 892 |
pinOrigin = true |
|
| 893 |
} |
|
| 894 | ||
| 895 |
private func setVisibleOriginsToZero() {
|
|
| 896 |
if useSharedOrigin && supportsSharedOrigin {
|
|
| 897 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 898 |
sharedAxisOrigin = 0 |
|
| 899 |
sharedAxisUpperBound = currentSpan |
|
| 900 |
voltageAxisOrigin = 0 |
|
| 901 |
currentAxisOrigin = 0 |
|
| 902 |
ensureSharedScaleSpan() |
|
| 903 |
} else {
|
|
| 904 |
if displayPower {
|
|
| 905 |
powerAxisOrigin = 0 |
|
| 906 |
} |
|
| 907 |
if displayVoltage {
|
|
| 908 |
voltageAxisOrigin = 0 |
|
| 909 |
} |
|
| 910 |
if displayCurrent {
|
|
| 911 |
currentAxisOrigin = 0 |
|
| 912 |
} |
|
| 913 |
if displayTemperature {
|
|
| 914 |
temperatureAxisOrigin = 0 |
|
| 915 |
} |
|
| 916 |
} |
|
| 917 | ||
| 918 |
pinOrigin = true |
|
| 919 |
} |
|
| 920 | ||
| 921 |
private func captureCurrentOrigins( |
|
| 922 |
voltageSeries: SeriesData, |
|
| 923 |
currentSeries: SeriesData |
|
| 924 |
) {
|
|
| 925 |
powerAxisOrigin = displayedLowerBoundForSeries(.power) |
|
| 926 |
voltageAxisOrigin = voltageSeries.autoLowerBound |
|
| 927 |
currentAxisOrigin = currentSeries.autoLowerBound |
|
| 928 |
temperatureAxisOrigin = displayedLowerBoundForSeries(.temperature) |
|
| 929 |
sharedAxisOrigin = min(voltageAxisOrigin, currentAxisOrigin) |
|
| 930 |
sharedAxisUpperBound = max(voltageSeries.autoUpperBound, currentSeries.autoUpperBound) |
|
| 931 |
ensureSharedScaleSpan() |
|
| 932 |
} |
|
| 933 | ||
| 934 |
private func displayedLowerBoundForSeries(_ kind: SeriesKind) -> Double {
|
|
| 935 |
let visibleTimeRange = activeVisibleTimeRange |
|
| 936 | ||
| 937 |
switch kind {
|
|
| 938 |
case .power: |
|
| 939 |
return pinOrigin |
|
| 940 |
? powerAxisOrigin |
|
| 941 |
: automaticYBounds( |
|
| 942 |
for: filteredSamplePoints( |
|
| 943 |
measurements.power, |
|
| 944 |
visibleTimeRange: visibleTimeRange |
|
| 945 |
), |
|
| 946 |
minimumYSpan: minimumPowerSpan |
|
| 947 |
).lowerBound |
|
| 948 |
case .voltage: |
|
| 949 |
if pinOrigin && useSharedOrigin && supportsSharedOrigin {
|
|
| 950 |
return sharedAxisOrigin |
|
| 951 |
} |
|
| 952 |
return pinOrigin |
|
| 953 |
? voltageAxisOrigin |
|
| 954 |
: automaticYBounds( |
|
| 955 |
for: filteredSamplePoints( |
|
| 956 |
measurements.voltage, |
|
| 957 |
visibleTimeRange: visibleTimeRange |
|
| 958 |
), |
|
| 959 |
minimumYSpan: minimumVoltageSpan |
|
| 960 |
).lowerBound |
|
| 961 |
case .current: |
|
| 962 |
if pinOrigin && useSharedOrigin && supportsSharedOrigin {
|
|
| 963 |
return sharedAxisOrigin |
|
| 964 |
} |
|
| 965 |
return pinOrigin |
|
| 966 |
? currentAxisOrigin |
|
| 967 |
: automaticYBounds( |
|
| 968 |
for: filteredSamplePoints( |
|
| 969 |
measurements.current, |
|
| 970 |
visibleTimeRange: visibleTimeRange |
|
| 971 |
), |
|
| 972 |
minimumYSpan: minimumCurrentSpan |
|
| 973 |
).lowerBound |
|
| 974 |
case .temperature: |
|
| 975 |
return pinOrigin |
|
| 976 |
? temperatureAxisOrigin |
|
| 977 |
: automaticYBounds( |
|
| 978 |
for: filteredSamplePoints( |
|
| 979 |
measurements.temperature, |
|
| 980 |
visibleTimeRange: visibleTimeRange |
|
| 981 |
), |
|
| 982 |
minimumYSpan: minimumTemperatureSpan |
|
| 983 |
).lowerBound |
|
| 984 |
} |
|
| 985 |
} |
|
| 986 | ||
| 987 |
private var activeVisibleTimeRange: ClosedRange<Date>? {
|
|
| 988 |
resolvedVisibleTimeRange(within: availableSelectionTimeRange()) |
|
| 989 |
} |
|
| 990 | ||
| 991 |
private func filteredPoints( |
|
| 992 |
_ measurement: Measurements.Measurement, |
|
| 993 |
visibleTimeRange: ClosedRange<Date>? = nil |
|
| 994 |
) -> [Measurements.Measurement.Point] {
|
|
| 995 |
measurement.points.filter { point in
|
|
| 996 |
guard timeRange?.contains(point.timestamp) ?? true else { return false }
|
|
| 997 |
return visibleTimeRange?.contains(point.timestamp) ?? true |
|
| 998 |
} |
|
| 999 |
} |
|
| 1000 | ||
| 1001 |
private func filteredSamplePoints( |
|
| 1002 |
_ measurement: Measurements.Measurement, |
|
| 1003 |
visibleTimeRange: ClosedRange<Date>? = nil |
|
| 1004 |
) -> [Measurements.Measurement.Point] {
|
|
| 1005 |
filteredPoints(measurement, visibleTimeRange: visibleTimeRange).filter { point in
|
|
| 1006 |
point.isSample |
|
| 1007 |
} |
|
| 1008 |
} |
|
| 1009 | ||
| 1010 |
private func xBounds( |
|
| 1011 |
for samplePoints: [Measurements.Measurement.Point], |
|
| 1012 |
visibleTimeRange: ClosedRange<Date>? = nil |
|
| 1013 |
) -> ClosedRange<Date> {
|
|
| 1014 |
if let visibleTimeRange {
|
|
| 1015 |
return normalizedTimeRange(visibleTimeRange) |
|
| 1016 |
} |
|
| 1017 | ||
| 1018 |
if let timeRange {
|
|
| 1019 |
return normalizedTimeRange(timeRange) |
|
| 1020 |
} |
|
| 1021 | ||
| 1022 |
let upperBound = max(samplePoints.last?.timestamp ?? chartNow, chartNow) |
|
| 1023 |
let lowerBound = samplePoints.first?.timestamp ?? upperBound.addingTimeInterval(-defaultEmptyChartTimeSpan) |
|
| 1024 | ||
| 1025 |
return normalizedTimeRange(lowerBound...upperBound) |
|
| 1026 |
} |
|
| 1027 | ||
| 1028 |
private func availableSelectionTimeRange() -> ClosedRange<Date>? {
|
|
| 1029 |
if let timeRange {
|
|
| 1030 |
return normalizedTimeRange(timeRange) |
|
| 1031 |
} |
|
| 1032 | ||
| 1033 |
let samplePoints = timelineSamplePoints() |
|
| 1034 |
guard let lowerBound = samplePoints.first?.timestamp else {
|
|
| 1035 |
return nil |
|
| 1036 |
} |
|
| 1037 | ||
| 1038 |
let upperBound = max(samplePoints.last?.timestamp ?? chartNow, chartNow) |
|
| 1039 |
return normalizedTimeRange(lowerBound...upperBound) |
|
| 1040 |
} |
|
| 1041 | ||
| 1042 |
private func timelineSamplePoints() -> [Measurements.Measurement.Point] {
|
|
| 1043 |
let candidates = [ |
|
| 1044 |
filteredSamplePoints(measurements.power), |
|
| 1045 |
filteredSamplePoints(measurements.voltage), |
|
| 1046 |
filteredSamplePoints(measurements.current), |
|
| 1047 |
filteredSamplePoints(measurements.temperature) |
|
| 1048 |
] |
|
| 1049 | ||
| 1050 |
return candidates.first(where: { !$0.isEmpty }) ?? []
|
|
| 1051 |
} |
|
| 1052 | ||
| 1053 |
private func resolvedVisibleTimeRange( |
|
| 1054 |
within availableTimeRange: ClosedRange<Date>? |
|
| 1055 |
) -> ClosedRange<Date>? {
|
|
| 1056 |
guard let availableTimeRange else { return nil }
|
|
| 1057 |
guard let selectedVisibleTimeRange else { return availableTimeRange }
|
|
| 1058 | ||
| 1059 |
if isPinnedToPresent {
|
|
| 1060 |
let pinnedRange: ClosedRange<Date> |
|
| 1061 | ||
| 1062 |
switch presentTrackingMode {
|
|
| 1063 |
case .keepDuration: |
|
| 1064 |
let selectionSpan = selectedVisibleTimeRange.upperBound.timeIntervalSince(selectedVisibleTimeRange.lowerBound) |
|
| 1065 |
pinnedRange = availableTimeRange.upperBound.addingTimeInterval(-selectionSpan)...availableTimeRange.upperBound |
|
| 1066 |
case .keepStartTimestamp: |
|
| 1067 |
pinnedRange = selectedVisibleTimeRange.lowerBound...availableTimeRange.upperBound |
|
| 1068 |
} |
|
| 1069 | ||
| 1070 |
return clampedTimeRange(pinnedRange, within: availableTimeRange) |
|
| 1071 |
} |
|
| 1072 | ||
| 1073 |
return clampedTimeRange(selectedVisibleTimeRange, within: availableTimeRange) |
|
| 1074 |
} |
|
| 1075 | ||
| 1076 |
private func clampedTimeRange( |
|
| 1077 |
_ candidateRange: ClosedRange<Date>, |
|
| 1078 |
within bounds: ClosedRange<Date> |
|
| 1079 |
) -> ClosedRange<Date> {
|
|
| 1080 |
let normalizedBounds = normalizedTimeRange(bounds) |
|
| 1081 |
let boundsSpan = normalizedBounds.upperBound.timeIntervalSince(normalizedBounds.lowerBound) |
|
| 1082 | ||
| 1083 |
guard boundsSpan > 0 else {
|
|
| 1084 |
return normalizedBounds |
|
| 1085 |
} |
|
| 1086 | ||
| 1087 |
let minimumSpan = min(max(minimumTimeSpan, 0.1), boundsSpan) |
|
| 1088 |
let requestedSpan = min( |
|
| 1089 |
max(candidateRange.upperBound.timeIntervalSince(candidateRange.lowerBound), minimumSpan), |
|
| 1090 |
boundsSpan |
|
| 1091 |
) |
|
| 1092 | ||
| 1093 |
if requestedSpan >= boundsSpan {
|
|
| 1094 |
return normalizedBounds |
|
| 1095 |
} |
|
| 1096 | ||
| 1097 |
var lowerBound = max(candidateRange.lowerBound, normalizedBounds.lowerBound) |
|
| 1098 |
var upperBound = min(candidateRange.upperBound, normalizedBounds.upperBound) |
|
| 1099 | ||
| 1100 |
if upperBound.timeIntervalSince(lowerBound) < requestedSpan {
|
|
| 1101 |
if lowerBound == normalizedBounds.lowerBound {
|
|
| 1102 |
upperBound = lowerBound.addingTimeInterval(requestedSpan) |
|
| 1103 |
} else {
|
|
| 1104 |
lowerBound = upperBound.addingTimeInterval(-requestedSpan) |
|
| 1105 |
} |
|
| 1106 |
} |
|
| 1107 | ||
| 1108 |
if upperBound > normalizedBounds.upperBound {
|
|
| 1109 |
let delta = upperBound.timeIntervalSince(normalizedBounds.upperBound) |
|
| 1110 |
upperBound = normalizedBounds.upperBound |
|
| 1111 |
lowerBound = lowerBound.addingTimeInterval(-delta) |
|
| 1112 |
} |
|
| 1113 | ||
| 1114 |
if lowerBound < normalizedBounds.lowerBound {
|
|
| 1115 |
let delta = normalizedBounds.lowerBound.timeIntervalSince(lowerBound) |
|
| 1116 |
lowerBound = normalizedBounds.lowerBound |
|
| 1117 |
upperBound = upperBound.addingTimeInterval(delta) |
|
| 1118 |
} |
|
| 1119 | ||
| 1120 |
return lowerBound...upperBound |
|
| 1121 |
} |
|
| 1122 | ||
| 1123 |
private func normalizedTimeRange(_ range: ClosedRange<Date>) -> ClosedRange<Date> {
|
|
| 1124 |
let span = range.upperBound.timeIntervalSince(range.lowerBound) |
|
| 1125 |
guard span < minimumTimeSpan else { return range }
|
|
| 1126 | ||
| 1127 |
let expansion = (minimumTimeSpan - span) / 2 |
|
| 1128 |
return range.lowerBound.addingTimeInterval(-expansion)...range.upperBound.addingTimeInterval(expansion) |
|
| 1129 |
} |
|
| 1130 | ||
| 1131 |
private func shouldShowRangeSelector( |
|
| 1132 |
availableTimeRange: ClosedRange<Date>, |
|
| 1133 |
series: SeriesData |
|
| 1134 |
) -> Bool {
|
|
| 1135 |
series.samplePoints.count > 1 && |
|
| 1136 |
availableTimeRange.upperBound.timeIntervalSince(availableTimeRange.lowerBound) > minimumTimeSpan |
|
| 1137 |
} |
|
| 1138 | ||
| 1139 |
private func automaticYBounds( |
|
| 1140 |
for samplePoints: [Measurements.Measurement.Point], |
|
| 1141 |
minimumYSpan: Double |
|
| 1142 |
) -> (lowerBound: Double, upperBound: Double) {
|
|
| 1143 |
let negativeAllowance = max(0.05, minimumYSpan * 0.08) |
|
| 1144 | ||
| 1145 |
guard |
|
| 1146 |
let minimumSampleValue = samplePoints.map(\.value).min(), |
|
| 1147 |
let maximumSampleValue = samplePoints.map(\.value).max() |
|
| 1148 |
else {
|
|
| 1149 |
return (0, minimumYSpan) |
|
| 1150 |
} |
|
| 1151 | ||
| 1152 |
var lowerBound = minimumSampleValue |
|
| 1153 |
var upperBound = maximumSampleValue |
|
| 1154 |
let currentSpan = upperBound - lowerBound |
|
| 1155 | ||
| 1156 |
if currentSpan < minimumYSpan {
|
|
| 1157 |
let expansion = (minimumYSpan - currentSpan) / 2 |
|
| 1158 |
lowerBound -= expansion |
|
| 1159 |
upperBound += expansion |
|
| 1160 |
} |
|
| 1161 | ||
| 1162 |
if minimumSampleValue >= 0, lowerBound < -negativeAllowance {
|
|
| 1163 |
let shift = -negativeAllowance - lowerBound |
|
| 1164 |
lowerBound += shift |
|
| 1165 |
upperBound += shift |
|
| 1166 |
} |
|
| 1167 | ||
| 1168 |
let snappedLowerBound = snappedOriginValue(lowerBound) |
|
| 1169 |
let resolvedUpperBound = max(upperBound, snappedLowerBound + minimumYSpan) |
|
| 1170 |
return (snappedLowerBound, resolvedUpperBound) |
|
| 1171 |
} |
|
| 1172 | ||
| 1173 |
private func resolvedLowerBound( |
|
| 1174 |
for kind: SeriesKind, |
|
| 1175 |
autoLowerBound: Double |
|
| 1176 |
) -> Double {
|
|
| 1177 |
guard pinOrigin else { return autoLowerBound }
|
|
| 1178 | ||
| 1179 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 1180 |
return sharedAxisOrigin |
|
| 1181 |
} |
|
| 1182 | ||
| 1183 |
switch kind {
|
|
| 1184 |
case .power: |
|
| 1185 |
return powerAxisOrigin |
|
| 1186 |
case .voltage: |
|
| 1187 |
return voltageAxisOrigin |
|
| 1188 |
case .current: |
|
| 1189 |
return currentAxisOrigin |
|
| 1190 |
case .temperature: |
|
| 1191 |
return temperatureAxisOrigin |
|
| 1192 |
} |
|
| 1193 |
} |
|
| 1194 | ||
| 1195 |
private func resolvedUpperBound( |
|
| 1196 |
for kind: SeriesKind, |
|
| 1197 |
lowerBound: Double, |
|
| 1198 |
autoUpperBound: Double, |
|
| 1199 |
maximumSampleValue: Double?, |
|
| 1200 |
minimumYSpan: Double |
|
| 1201 |
) -> Double {
|
|
| 1202 |
guard pinOrigin else {
|
|
| 1203 |
return autoUpperBound |
|
| 1204 |
} |
|
| 1205 | ||
| 1206 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 1207 |
return max(sharedAxisUpperBound, sharedAxisOrigin + minimumSharedScaleSpan) |
|
| 1208 |
} |
|
| 1209 | ||
| 1210 |
if kind == .temperature {
|
|
| 1211 |
return autoUpperBound |
|
| 1212 |
} |
|
| 1213 | ||
| 1214 |
return max( |
|
| 1215 |
maximumSampleValue ?? lowerBound, |
|
| 1216 |
lowerBound + minimumYSpan, |
|
| 1217 |
autoUpperBound |
|
| 1218 |
) |
|
| 1219 |
} |
|
| 1220 | ||
| 1221 |
private func applyOriginDelta(_ delta: Double, kind: SeriesKind) {
|
|
| 1222 |
let baseline = displayedLowerBoundForSeries(kind) |
|
| 1223 |
let proposedOrigin = snappedOriginValue(baseline + delta) |
|
| 1224 | ||
| 1225 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 1226 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 1227 |
sharedAxisOrigin = min(proposedOrigin, maximumVisibleSharedOrigin()) |
|
| 1228 |
sharedAxisUpperBound = sharedAxisOrigin + currentSpan |
|
| 1229 |
ensureSharedScaleSpan() |
|
| 1230 |
} else {
|
|
| 1231 |
switch kind {
|
|
| 1232 |
case .power: |
|
| 1233 |
powerAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .power)) |
|
| 1234 |
case .voltage: |
|
| 1235 |
voltageAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .voltage)) |
|
| 1236 |
case .current: |
|
| 1237 |
currentAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .current)) |
|
| 1238 |
case .temperature: |
|
| 1239 |
temperatureAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .temperature)) |
|
| 1240 |
} |
|
| 1241 |
} |
|
| 1242 | ||
| 1243 |
pinOrigin = true |
|
| 1244 |
} |
|
| 1245 | ||
| 1246 |
private func clearOriginOffset(for kind: SeriesKind) {
|
|
| 1247 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 1248 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 1249 |
sharedAxisOrigin = 0 |
|
| 1250 |
sharedAxisUpperBound = currentSpan |
|
| 1251 |
ensureSharedScaleSpan() |
|
| 1252 |
voltageAxisOrigin = 0 |
|
| 1253 |
currentAxisOrigin = 0 |
|
| 1254 |
} else {
|
|
| 1255 |
switch kind {
|
|
| 1256 |
case .power: |
|
| 1257 |
powerAxisOrigin = 0 |
|
| 1258 |
case .voltage: |
|
| 1259 |
voltageAxisOrigin = 0 |
|
| 1260 |
case .current: |
|
| 1261 |
currentAxisOrigin = 0 |
|
| 1262 |
case .temperature: |
|
| 1263 |
temperatureAxisOrigin = 0 |
|
| 1264 |
} |
|
| 1265 |
} |
|
| 1266 | ||
| 1267 |
pinOrigin = true |
|
| 1268 |
} |
|
| 1269 | ||
| 1270 |
private func handleAxisTap(locationY: CGFloat, totalHeight: CGFloat, kind: SeriesKind) {
|
|
| 1271 |
guard totalHeight > 1 else { return }
|
|
| 1272 | ||
| 1273 |
let normalized = max(0, min(1, locationY / totalHeight)) |
|
| 1274 |
if normalized < (1.0 / 3.0) {
|
|
| 1275 |
applyOriginDelta(-1, kind: kind) |
|
| 1276 |
} else if normalized < (2.0 / 3.0) {
|
|
| 1277 |
clearOriginOffset(for: kind) |
|
| 1278 |
} else {
|
|
| 1279 |
applyOriginDelta(1, kind: kind) |
|
| 1280 |
} |
|
| 1281 |
} |
|
| 1282 | ||
| 1283 |
private func maximumVisibleOrigin(for kind: SeriesKind) -> Double {
|
|
| 1284 |
let visibleTimeRange = activeVisibleTimeRange |
|
| 1285 | ||
| 1286 |
switch kind {
|
|
| 1287 |
case .power: |
|
| 1288 |
return snappedOriginValue( |
|
| 1289 |
filteredSamplePoints( |
|
| 1290 |
measurements.power, |
|
| 1291 |
visibleTimeRange: visibleTimeRange |
|
| 1292 |
).map(\.value).min() ?? 0 |
|
| 1293 |
) |
|
| 1294 |
case .voltage: |
|
| 1295 |
return snappedOriginValue( |
|
| 1296 |
filteredSamplePoints( |
|
| 1297 |
measurements.voltage, |
|
| 1298 |
visibleTimeRange: visibleTimeRange |
|
| 1299 |
).map(\.value).min() ?? 0 |
|
| 1300 |
) |
|
| 1301 |
case .current: |
|
| 1302 |
return snappedOriginValue( |
|
| 1303 |
filteredSamplePoints( |
|
| 1304 |
measurements.current, |
|
| 1305 |
visibleTimeRange: visibleTimeRange |
|
| 1306 |
).map(\.value).min() ?? 0 |
|
| 1307 |
) |
|
| 1308 |
case .temperature: |
|
| 1309 |
return snappedOriginValue( |
|
| 1310 |
filteredSamplePoints( |
|
| 1311 |
measurements.temperature, |
|
| 1312 |
visibleTimeRange: visibleTimeRange |
|
| 1313 |
).map(\.value).min() ?? 0 |
|
| 1314 |
) |
|
| 1315 |
} |
|
| 1316 |
} |
|
| 1317 | ||
| 1318 |
private func maximumVisibleSharedOrigin() -> Double {
|
|
| 1319 |
min( |
|
| 1320 |
maximumVisibleOrigin(for: .voltage), |
|
| 1321 |
maximumVisibleOrigin(for: .current) |
|
| 1322 |
) |
|
| 1323 |
} |
|
| 1324 | ||
| 1325 |
private func measurementUnit(for kind: SeriesKind) -> String {
|
|
| 1326 |
switch kind {
|
|
| 1327 |
case .temperature: |
|
| 1328 |
let locale = Locale.autoupdatingCurrent |
|
| 1329 |
if #available(iOS 16.0, *) {
|
|
| 1330 |
switch locale.measurementSystem {
|
|
| 1331 |
case .us: |
|
| 1332 |
return "°F" |
|
| 1333 |
default: |
|
| 1334 |
return "°C" |
|
| 1335 |
} |
|
| 1336 |
} |
|
| 1337 | ||
| 1338 |
let regionCode = locale.regionCode ?? "" |
|
| 1339 |
let fahrenheitRegions: Set<String> = ["US", "BS", "BZ", "KY", "PW", "LR", "FM", "MH"] |
|
| 1340 |
return fahrenheitRegions.contains(regionCode) ? "°F" : "°C" |
|
| 1341 |
default: |
|
| 1342 |
return kind.unit |
|
| 1343 |
} |
|
| 1344 |
} |
|
| 1345 | ||
| 1346 |
private func ensureSharedScaleSpan() {
|
|
| 1347 |
sharedAxisUpperBound = max(sharedAxisUpperBound, sharedAxisOrigin + minimumSharedScaleSpan) |
|
| 1348 |
} |
|
| 1349 | ||
| 1350 |
private func snappedOriginValue(_ value: Double) -> Double {
|
|
| 1351 |
if value >= 0 {
|
|
| 1352 |
return value.rounded(.down) |
|
| 1353 |
} |
|
| 1354 | ||
| 1355 |
return value.rounded(.up) |
|
| 1356 |
} |
|
| 1357 | ||
| 1358 |
private func yGuidePosition( |
|
| 1359 |
for labelIndex: Int, |
|
| 1360 |
context: ChartContext, |
|
| 1361 |
height: CGFloat |
|
| 1362 |
) -> CGFloat {
|
|
| 1363 |
let value = context.yAxisLabel(for: labelIndex, of: yLabels) |
|
| 1364 |
let anchorPoint = CGPoint(x: context.origin.x, y: CGFloat(value)) |
|
| 1365 |
return context.placeInRect(point: anchorPoint).y * height |
|
| 1366 |
} |
|
| 1367 | ||
| 1368 |
private func xGuidePosition( |
|
| 1369 |
for labelIndex: Int, |
|
| 1370 |
context: ChartContext, |
|
| 1371 |
width: CGFloat |
|
| 1372 |
) -> CGFloat {
|
|
| 1373 |
let value = context.xAxisLabel(for: labelIndex, of: xLabels) |
|
| 1374 |
let anchorPoint = CGPoint(x: CGFloat(value), y: context.origin.y) |
|
| 1375 |
return context.placeInRect(point: anchorPoint).x * width |
|
| 1376 |
} |
|
| 1377 | ||
| 1378 |
// MARK: Cu iteratie nu functioneaza deoarece view-ul din bucla nu este reimprospatat la modificare obiectului observat |
|
| 1379 |
fileprivate func xAxisLabelsView( |
|
| 1380 |
context: ChartContext |
|
| 1381 |
) -> some View {
|
|
| 1382 |
var timeFormat: String? |
|
| 1383 |
switch context.size.width {
|
|
| 1384 |
case 0..<3600: timeFormat = "HH:mm:ss" |
|
| 1385 |
case 3600...86400: timeFormat = "HH:mm" |
|
| 1386 |
default: timeFormat = "E HH:mm" |
|
| 1387 |
} |
|
| 1388 |
let labels = (1...xLabels).map {
|
|
| 1389 |
Date(timeIntervalSince1970: context.xAxisLabel(for: $0, of: self.xLabels)).format(as: timeFormat!) |
|
| 1390 |
} |
|
| 1391 |
let axisLabelFont: Font = {
|
|
| 1392 |
if isIPhone && isPortraitLayout {
|
|
| 1393 |
return .caption2.weight(.semibold) |
|
| 1394 |
} |
|
| 1395 |
return (isLargeDisplay ? Font.callout : .caption).weight(.semibold) |
|
| 1396 |
}() |
|
| 1397 | ||
| 1398 |
return HStack(spacing: chartSectionSpacing) {
|
|
| 1399 |
Color.clear |
|
| 1400 |
.frame(width: axisColumnWidth) |
|
| 1401 | ||
| 1402 |
GeometryReader { geometry in
|
|
| 1403 |
let labelWidth = max( |
|
| 1404 |
geometry.size.width / CGFloat(max(xLabels - 1, 1)), |
|
| 1405 |
1 |
|
| 1406 |
) |
|
| 1407 | ||
| 1408 |
ZStack(alignment: .topLeading) {
|
|
| 1409 |
Path { path in
|
|
| 1410 |
for labelIndex in 1...self.xLabels {
|
|
| 1411 |
let x = xGuidePosition( |
|
| 1412 |
for: labelIndex, |
|
| 1413 |
context: context, |
|
| 1414 |
width: geometry.size.width |
|
| 1415 |
) |
|
| 1416 |
path.move(to: CGPoint(x: x, y: 0)) |
|
| 1417 |
path.addLine(to: CGPoint(x: x, y: 6)) |
|
| 1418 |
} |
|
| 1419 |
} |
|
| 1420 |
.stroke(Color.secondary.opacity(0.26), lineWidth: 0.75) |
|
| 1421 | ||
| 1422 |
ForEach(Array(labels.enumerated()), id: \.offset) { item in
|
|
| 1423 |
let labelIndex = item.offset + 1 |
|
| 1424 |
let centerX = xGuidePosition( |
|
| 1425 |
for: labelIndex, |
|
| 1426 |
context: context, |
|
| 1427 |
width: geometry.size.width |
|
| 1428 |
) |
|
| 1429 | ||
| 1430 |
Text(item.element) |
|
| 1431 |
.font(axisLabelFont) |
|
| 1432 |
.monospacedDigit() |
|
| 1433 |
.lineLimit(1) |
|
| 1434 |
.minimumScaleFactor(0.74) |
|
| 1435 |
.frame(width: labelWidth) |
|
| 1436 |
.position( |
|
| 1437 |
x: centerX, |
|
| 1438 |
y: geometry.size.height * 0.7 |
|
| 1439 |
) |
|
| 1440 |
} |
|
| 1441 |
} |
|
| 1442 |
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
|
| 1443 |
} |
|
| 1444 | ||
| 1445 |
Color.clear |
|
| 1446 |
.frame(width: axisColumnWidth) |
|
| 1447 |
} |
|
| 1448 |
} |
|
| 1449 | ||
| 1450 |
private func yAxisLabelsView( |
|
| 1451 |
height: CGFloat, |
|
| 1452 |
context: ChartContext, |
|
| 1453 |
seriesKind: SeriesKind, |
|
| 1454 |
measurementUnit: String, |
|
| 1455 |
tint: Color |
|
| 1456 |
) -> some View {
|
|
| 1457 |
let yAxisFont: Font = {
|
|
| 1458 |
if isIPhone && isPortraitLayout {
|
|
| 1459 |
return .caption2.weight(.semibold) |
|
| 1460 |
} |
|
| 1461 |
return (isLargeDisplay ? Font.callout : .footnote).weight(.semibold) |
|
| 1462 |
}() |
|
| 1463 | ||
| 1464 |
let unitFont: Font = {
|
|
| 1465 |
if isIPhone && isPortraitLayout {
|
|
| 1466 |
return .caption2.weight(.bold) |
|
| 1467 |
} |
|
| 1468 |
return (isLargeDisplay ? Font.footnote : .caption2).weight(.bold) |
|
| 1469 |
}() |
|
| 1470 | ||
| 1471 |
return GeometryReader { geometry in
|
|
| 1472 |
let footerHeight: CGFloat = isLargeDisplay ? 30 : 24 |
|
| 1473 |
let topInset: CGFloat = isLargeDisplay ? 34 : 28 |
|
| 1474 |
let labelAreaHeight = max(geometry.size.height - footerHeight - topInset, 1) |
|
| 1475 | ||
| 1476 |
ZStack(alignment: .top) {
|
|
| 1477 |
ForEach(0..<yLabels, id: \.self) { row in
|
|
| 1478 |
let labelIndex = yLabels - row |
|
| 1479 | ||
| 1480 |
Text("\(context.yAxisLabel(for: labelIndex, of: yLabels).format(fractionDigits: 1))")
|
|
| 1481 |
.font(yAxisFont) |
|
| 1482 |
.monospacedDigit() |
|
| 1483 |
.lineLimit(1) |
|
| 1484 |
.minimumScaleFactor(0.8) |
|
| 1485 |
.frame(width: max(geometry.size.width - 10, 0)) |
|
| 1486 |
.position( |
|
| 1487 |
x: geometry.size.width / 2, |
|
| 1488 |
y: topInset + yGuidePosition( |
|
| 1489 |
for: labelIndex, |
|
| 1490 |
context: context, |
|
| 1491 |
height: labelAreaHeight |
|
| 1492 |
) |
|
| 1493 |
) |
|
| 1494 |
} |
|
| 1495 | ||
| 1496 |
Text(measurementUnit) |
|
| 1497 |
.font(unitFont) |
|
| 1498 |
.foregroundColor(tint) |
|
| 1499 |
.padding(.horizontal, isLargeDisplay ? 8 : 6) |
|
| 1500 |
.padding(.vertical, isLargeDisplay ? 5 : 4) |
|
| 1501 |
.background( |
|
| 1502 |
Capsule(style: .continuous) |
|
| 1503 |
.fill(tint.opacity(0.14)) |
|
| 1504 |
) |
|
| 1505 |
.padding(.top, 8) |
|
| 1506 | ||
| 1507 |
} |
|
| 1508 |
} |
|
| 1509 |
.frame(height: height) |
|
| 1510 |
.background( |
|
| 1511 |
RoundedRectangle(cornerRadius: 16, style: .continuous) |
|
| 1512 |
.fill(tint.opacity(0.12)) |
|
| 1513 |
) |
|
| 1514 |
.overlay( |
|
| 1515 |
RoundedRectangle(cornerRadius: 16, style: .continuous) |
|
| 1516 |
.stroke(tint.opacity(0.20), lineWidth: 1) |
|
| 1517 |
) |
|
| 1518 |
.contentShape(RoundedRectangle(cornerRadius: 16, style: .continuous)) |
|
| 1519 |
.gesture( |
|
| 1520 |
DragGesture(minimumDistance: 0) |
|
| 1521 |
.onEnded { value in
|
|
| 1522 |
handleAxisTap(locationY: value.location.y, totalHeight: height, kind: seriesKind) |
|
| 1523 |
} |
|
| 1524 |
) |
|
| 1525 |
} |
|
| 1526 | ||
| 1527 |
fileprivate func horizontalGuides(context: ChartContext) -> some View {
|
|
| 1528 |
GeometryReader { geometry in
|
|
| 1529 |
Path { path in
|
|
| 1530 |
for labelIndex in 1...self.yLabels {
|
|
| 1531 |
let y = yGuidePosition( |
|
| 1532 |
for: labelIndex, |
|
| 1533 |
context: context, |
|
| 1534 |
height: geometry.size.height |
|
| 1535 |
) |
|
| 1536 |
path.addLine(from: CGPoint(x: 0, y: y), to: CGPoint(x: geometry.size.width, y: y)) |
|
| 1537 |
} |
|
| 1538 |
} |
|
| 1539 |
.stroke(Color.secondary.opacity(0.38), lineWidth: 0.85) |
|
| 1540 |
} |
|
| 1541 |
} |
|
| 1542 | ||
| 1543 |
fileprivate func verticalGuides(context: ChartContext) -> some View {
|
|
| 1544 |
GeometryReader { geometry in
|
|
| 1545 |
Path { path in
|
|
| 1546 | ||
| 1547 |
for labelIndex in 2..<self.xLabels {
|
|
| 1548 |
let x = xGuidePosition( |
|
| 1549 |
for: labelIndex, |
|
| 1550 |
context: context, |
|
| 1551 |
width: geometry.size.width |
|
| 1552 |
) |
|
| 1553 |
path.move(to: CGPoint(x: x, y: 0) ) |
|
| 1554 |
path.addLine(to: CGPoint(x: path.currentPoint!.x, y: geometry.size.height) ) |
|
| 1555 |
} |
|
| 1556 |
} |
|
| 1557 |
.stroke(Color.secondary.opacity(0.34), style: StrokeStyle(lineWidth: 0.8, dash: [4, 4])) |
|
| 1558 |
} |
|
| 1559 |
} |
|
| 1560 | ||
| 1561 |
fileprivate func discontinuityMarkers( |
|
| 1562 |
points: [Measurements.Measurement.Point], |
|
| 1563 |
context: ChartContext |
|
| 1564 |
) -> some View {
|
|
| 1565 |
GeometryReader { geometry in
|
|
| 1566 |
Path { path in
|
|
| 1567 |
for point in points where point.isDiscontinuity {
|
|
| 1568 |
let markerX = context.placeInRect( |
|
| 1569 |
point: CGPoint( |
|
| 1570 |
x: point.timestamp.timeIntervalSince1970, |
|
| 1571 |
y: context.origin.y |
|
| 1572 |
) |
|
| 1573 |
).x * geometry.size.width |
|
| 1574 |
path.move(to: CGPoint(x: markerX, y: 0)) |
|
| 1575 |
path.addLine(to: CGPoint(x: markerX, y: geometry.size.height)) |
|
| 1576 |
} |
|
| 1577 |
} |
|
| 1578 |
.stroke(Color.orange.opacity(0.75), style: StrokeStyle(lineWidth: 1, dash: [5, 4])) |
|
| 1579 |
} |
|
| 1580 |
} |
|
| 1581 | ||
| 1582 |
} |
|
| 1583 | ||
| 1584 |
private struct TimeRangeSelectorView: View {
|
|
| 1585 |
private enum DragTarget {
|
|
| 1586 |
case lowerBound |
|
| 1587 |
case upperBound |
|
| 1588 |
case window |
|
| 1589 |
} |
|
| 1590 | ||
| 1591 |
private struct DragState {
|
|
| 1592 |
let target: DragTarget |
|
| 1593 |
let initialRange: ClosedRange<Date> |
|
| 1594 |
} |
|
| 1595 | ||
| 1596 |
let points: [Measurements.Measurement.Point] |
|
| 1597 |
let context: ChartContext |
|
| 1598 |
let availableTimeRange: ClosedRange<Date> |
|
| 1599 |
let accentColor: Color |
|
| 1600 |
let compactLayout: Bool |
|
| 1601 |
let minimumSelectionSpan: TimeInterval |
|
| 1602 | ||
| 1603 |
@Binding var selectedTimeRange: ClosedRange<Date>? |
|
| 1604 |
@Binding var isPinnedToPresent: Bool |
|
| 1605 |
@Binding var presentTrackingMode: PresentTrackingMode |
|
| 1606 |
@State private var dragState: DragState? |
|
| 1607 | ||
| 1608 |
private var totalSpan: TimeInterval {
|
|
| 1609 |
availableTimeRange.upperBound.timeIntervalSince(availableTimeRange.lowerBound) |
|
| 1610 |
} |
|
| 1611 | ||
| 1612 |
private var currentRange: ClosedRange<Date> {
|
|
| 1613 |
resolvedSelectionRange() |
|
| 1614 |
} |
|
| 1615 | ||
| 1616 |
private var trackHeight: CGFloat {
|
|
| 1617 |
compactLayout ? 72 : 86 |
|
| 1618 |
} |
|
| 1619 | ||
| 1620 |
private var cornerRadius: CGFloat {
|
|
| 1621 |
compactLayout ? 14 : 16 |
|
| 1622 |
} |
|
| 1623 | ||
| 1624 |
private var summaryFont: Font {
|
|
| 1625 |
compactLayout ? .caption.weight(.semibold) : .footnote.weight(.semibold) |
|
| 1626 |
} |
|
| 1627 | ||
| 1628 |
private var boundaryFont: Font {
|
|
| 1629 |
compactLayout ? .caption.weight(.semibold) : .footnote.weight(.semibold) |
|
| 1630 |
} |
|
| 1631 | ||
| 1632 |
private var symbolButtonSize: CGFloat {
|
|
| 1633 |
compactLayout ? 28 : 32 |
|
| 1634 |
} |
|
| 1635 | ||
| 1636 |
var body: some View {
|
|
| 1637 |
let coversFullRange = selectionCoversFullRange(currentRange) |
|
| 1638 | ||
| 1639 |
VStack(alignment: .leading, spacing: compactLayout ? 6 : 8) {
|
|
| 1640 |
if !coversFullRange || isPinnedToPresent {
|
|
| 1641 |
HStack(spacing: 8) {
|
|
| 1642 |
alignmentButton( |
|
| 1643 |
systemName: "arrow.left.to.line.compact", |
|
| 1644 |
isActive: currentRange.lowerBound == availableTimeRange.lowerBound && !isPinnedToPresent, |
|
| 1645 |
action: alignSelectionToLeadingEdge, |
|
| 1646 |
accessibilityLabel: "Align selection to start" |
|
| 1647 |
) |
|
| 1648 | ||
| 1649 |
alignmentButton( |
|
| 1650 |
systemName: "arrow.right.to.line.compact", |
|
| 1651 |
isActive: isPinnedToPresent || selectionTouchesPresent(currentRange), |
|
| 1652 |
action: alignSelectionToTrailingEdge, |
|
| 1653 |
accessibilityLabel: "Align selection to present" |
|
| 1654 |
) |
|
| 1655 | ||
| 1656 |
Spacer(minLength: 0) |
|
| 1657 | ||
| 1658 |
if isPinnedToPresent {
|
|
| 1659 |
trackingModeToggleButton() |
|
| 1660 |
} |
|
| 1661 |
} |
|
| 1662 |
} |
|
| 1663 | ||
| 1664 |
GeometryReader { geometry in
|
|
| 1665 |
let selectionFrame = selectionFrame(in: geometry.size) |
|
| 1666 |
let dimmingColor = Color(uiColor: .systemBackground).opacity(0.58) |
|
| 1667 | ||
| 1668 |
ZStack(alignment: .topLeading) {
|
|
| 1669 |
RoundedRectangle(cornerRadius: cornerRadius, style: .continuous) |
|
| 1670 |
.fill(Color.primary.opacity(0.05)) |
|
| 1671 | ||
| 1672 |
Chart( |
|
| 1673 |
points: points, |
|
| 1674 |
context: context, |
|
| 1675 |
areaChart: true, |
|
| 1676 |
strokeColor: accentColor, |
|
| 1677 |
areaFillColor: accentColor.opacity(0.22) |
|
| 1678 |
) |
|
| 1679 |
.opacity(0.94) |
|
| 1680 |
.allowsHitTesting(false) |
|
| 1681 | ||
| 1682 |
Chart( |
|
| 1683 |
points: points, |
|
| 1684 |
context: context, |
|
| 1685 |
strokeColor: accentColor.opacity(0.56) |
|
| 1686 |
) |
|
| 1687 |
.opacity(0.82) |
|
| 1688 |
.allowsHitTesting(false) |
|
| 1689 | ||
| 1690 |
if selectionFrame.minX > 0 {
|
|
| 1691 |
Rectangle() |
|
| 1692 |
.fill(dimmingColor) |
|
| 1693 |
.frame(width: selectionFrame.minX, height: geometry.size.height) |
|
| 1694 |
.allowsHitTesting(false) |
|
| 1695 |
} |
|
| 1696 | ||
| 1697 |
if selectionFrame.maxX < geometry.size.width {
|
|
| 1698 |
Rectangle() |
|
| 1699 |
.fill(dimmingColor) |
|
| 1700 |
.frame( |
|
| 1701 |
width: max(geometry.size.width - selectionFrame.maxX, 0), |
|
| 1702 |
height: geometry.size.height |
|
| 1703 |
) |
|
| 1704 |
.offset(x: selectionFrame.maxX) |
|
| 1705 |
.allowsHitTesting(false) |
|
| 1706 |
} |
|
| 1707 | ||
| 1708 |
RoundedRectangle(cornerRadius: max(cornerRadius - 2, 10), style: .continuous) |
|
| 1709 |
.fill(accentColor.opacity(0.18)) |
|
| 1710 |
.frame(width: max(selectionFrame.width, 2), height: geometry.size.height) |
|
| 1711 |
.offset(x: selectionFrame.minX) |
|
| 1712 |
.allowsHitTesting(false) |
|
| 1713 | ||
| 1714 |
RoundedRectangle(cornerRadius: max(cornerRadius - 2, 10), style: .continuous) |
|
| 1715 |
.stroke(accentColor.opacity(0.52), lineWidth: 1.2) |
|
| 1716 |
.frame(width: max(selectionFrame.width, 2), height: geometry.size.height) |
|
| 1717 |
.offset(x: selectionFrame.minX) |
|
| 1718 |
.allowsHitTesting(false) |
|
| 1719 | ||
| 1720 |
handleView(height: max(geometry.size.height - 18, 16)) |
|
| 1721 |
.offset(x: max(selectionFrame.minX + 6, 6), y: 9) |
|
| 1722 |
.allowsHitTesting(false) |
|
| 1723 | ||
| 1724 |
handleView(height: max(geometry.size.height - 18, 16)) |
|
| 1725 |
.offset(x: max(selectionFrame.maxX - 12, 6), y: 9) |
|
| 1726 |
.allowsHitTesting(false) |
|
| 1727 |
} |
|
| 1728 |
.clipShape(RoundedRectangle(cornerRadius: cornerRadius, style: .continuous)) |
|
| 1729 |
.overlay( |
|
| 1730 |
RoundedRectangle(cornerRadius: cornerRadius, style: .continuous) |
|
| 1731 |
.stroke(Color.secondary.opacity(0.18), lineWidth: 1) |
|
| 1732 |
) |
|
| 1733 |
.contentShape(Rectangle()) |
|
| 1734 |
.gesture(selectionGesture(totalWidth: geometry.size.width)) |
|
| 1735 |
} |
|
| 1736 |
.frame(height: trackHeight) |
|
| 1737 | ||
| 1738 |
HStack {
|
|
| 1739 |
Text(boundaryLabel(for: availableTimeRange.lowerBound)) |
|
| 1740 |
Spacer(minLength: 0) |
|
| 1741 |
Text(boundaryLabel(for: availableTimeRange.upperBound)) |
|
| 1742 |
} |
|
| 1743 |
.font(boundaryFont) |
|
| 1744 |
.foregroundColor(.secondary) |
|
| 1745 |
.monospacedDigit() |
|
| 1746 |
} |
|
| 1747 |
} |
|
| 1748 | ||
| 1749 |
private func handleView(height: CGFloat) -> some View {
|
|
| 1750 |
Capsule(style: .continuous) |
|
| 1751 |
.fill(Color.white.opacity(0.95)) |
|
| 1752 |
.frame(width: 6, height: height) |
|
| 1753 |
.shadow(color: .black.opacity(0.08), radius: 2, x: 0, y: 1) |
|
| 1754 |
} |
|
| 1755 | ||
| 1756 |
private func alignmentButton( |
|
| 1757 |
systemName: String, |
|
| 1758 |
isActive: Bool, |
|
| 1759 |
action: @escaping () -> Void, |
|
| 1760 |
accessibilityLabel: String |
|
| 1761 |
) -> some View {
|
|
| 1762 |
Button(action: action) {
|
|
| 1763 |
Image(systemName: systemName) |
|
| 1764 |
.font(.system(size: compactLayout ? 12 : 13, weight: .semibold)) |
|
| 1765 |
.frame(width: symbolButtonSize, height: symbolButtonSize) |
|
| 1766 |
} |
|
| 1767 |
.buttonStyle(.plain) |
|
| 1768 |
.foregroundColor(isActive ? .white : accentColor) |
|
| 1769 |
.background( |
|
| 1770 |
RoundedRectangle(cornerRadius: 9, style: .continuous) |
|
| 1771 |
.fill(isActive ? accentColor : accentColor.opacity(0.14)) |
|
| 1772 |
) |
|
| 1773 |
.overlay( |
|
| 1774 |
RoundedRectangle(cornerRadius: 9, style: .continuous) |
|
| 1775 |
.stroke(accentColor.opacity(0.28), lineWidth: 1) |
|
| 1776 |
) |
|
| 1777 |
.accessibilityLabel(accessibilityLabel) |
|
| 1778 |
} |
|
| 1779 | ||
| 1780 |
private func trackingModeToggleButton() -> some View {
|
|
| 1781 |
Button {
|
|
| 1782 |
presentTrackingMode = presentTrackingMode == .keepDuration |
|
| 1783 |
? .keepStartTimestamp |
|
| 1784 |
: .keepDuration |
|
| 1785 |
} label: {
|
|
| 1786 |
Image(systemName: trackingModeSymbolName) |
|
| 1787 |
.font(.system(size: compactLayout ? 12 : 13, weight: .semibold)) |
|
| 1788 |
.frame(width: symbolButtonSize, height: symbolButtonSize) |
|
| 1789 |
} |
|
| 1790 |
.buttonStyle(.plain) |
|
| 1791 |
.foregroundColor(.white) |
|
| 1792 |
.background( |
|
| 1793 |
RoundedRectangle(cornerRadius: 9, style: .continuous) |
|
| 1794 |
.fill(accentColor) |
|
| 1795 |
) |
|
| 1796 |
.overlay( |
|
| 1797 |
RoundedRectangle(cornerRadius: 9, style: .continuous) |
|
| 1798 |
.stroke(accentColor.opacity(0.28), lineWidth: 1) |
|
| 1799 |
) |
|
| 1800 |
.accessibilityLabel(trackingModeAccessibilityLabel) |
|
| 1801 |
.accessibilityHint("Toggles how the interval follows the present")
|
|
| 1802 |
} |
|
| 1803 | ||
| 1804 |
private var trackingModeSymbolName: String {
|
|
| 1805 |
switch presentTrackingMode {
|
|
| 1806 |
case .keepDuration: |
|
| 1807 |
return "arrow.left.and.right" |
|
| 1808 |
case .keepStartTimestamp: |
|
| 1809 |
return "arrow.left.to.line.compact" |
|
| 1810 |
} |
|
| 1811 |
} |
|
| 1812 | ||
| 1813 |
private var trackingModeAccessibilityLabel: String {
|
|
| 1814 |
switch presentTrackingMode {
|
|
| 1815 |
case .keepDuration: |
|
| 1816 |
return "Follow present keeping span" |
|
| 1817 |
case .keepStartTimestamp: |
|
| 1818 |
return "Follow present keeping start" |
|
| 1819 |
} |
|
| 1820 |
} |
|
| 1821 | ||
| 1822 |
private func alignSelectionToLeadingEdge() {
|
|
| 1823 |
let alignedRange = normalizedSelectionRange( |
|
| 1824 |
availableTimeRange.lowerBound...currentRange.upperBound |
|
| 1825 |
) |
|
| 1826 |
applySelection(alignedRange, pinToPresent: false) |
|
| 1827 |
} |
|
| 1828 | ||
| 1829 |
private func alignSelectionToTrailingEdge() {
|
|
| 1830 |
let alignedRange = normalizedSelectionRange( |
|
| 1831 |
currentRange.lowerBound...availableTimeRange.upperBound |
|
| 1832 |
) |
|
| 1833 |
applySelection(alignedRange, pinToPresent: true) |
|
| 1834 |
} |
|
| 1835 | ||
| 1836 |
private func selectionGesture(totalWidth: CGFloat) -> some Gesture {
|
|
| 1837 |
DragGesture(minimumDistance: 0) |
|
| 1838 |
.onChanged { value in
|
|
| 1839 |
updateSelectionDrag(value: value, totalWidth: totalWidth) |
|
| 1840 |
} |
|
| 1841 |
.onEnded { _ in
|
|
| 1842 |
dragState = nil |
|
| 1843 |
} |
|
| 1844 |
} |
|
| 1845 | ||
| 1846 |
private func updateSelectionDrag( |
|
| 1847 |
value: DragGesture.Value, |
|
| 1848 |
totalWidth: CGFloat |
|
| 1849 |
) {
|
|
| 1850 |
let startingRange = resolvedSelectionRange() |
|
| 1851 | ||
| 1852 |
if dragState == nil {
|
|
| 1853 |
dragState = DragState( |
|
| 1854 |
target: dragTarget( |
|
| 1855 |
for: value.startLocation.x, |
|
| 1856 |
selectionFrame: selectionFrame(for: startingRange, width: totalWidth) |
|
| 1857 |
), |
|
| 1858 |
initialRange: startingRange |
|
| 1859 |
) |
|
| 1860 |
} |
|
| 1861 | ||
| 1862 |
guard let dragState else { return }
|
|
| 1863 | ||
| 1864 |
let resultingRange = snappedToEdges( |
|
| 1865 |
adjustedRange( |
|
| 1866 |
from: dragState.initialRange, |
|
| 1867 |
target: dragState.target, |
|
| 1868 |
translationX: value.translation.width, |
|
| 1869 |
totalWidth: totalWidth |
|
| 1870 |
), |
|
| 1871 |
target: dragState.target, |
|
| 1872 |
totalWidth: totalWidth |
|
| 1873 |
) |
|
| 1874 | ||
| 1875 |
applySelection( |
|
| 1876 |
resultingRange, |
|
| 1877 |
pinToPresent: shouldKeepPresentPin( |
|
| 1878 |
during: dragState.target, |
|
| 1879 |
initialRange: dragState.initialRange, |
|
| 1880 |
resultingRange: resultingRange |
|
| 1881 |
), |
|
| 1882 |
) |
|
| 1883 |
} |
|
| 1884 | ||
| 1885 |
private func dragTarget( |
|
| 1886 |
for startX: CGFloat, |
|
| 1887 |
selectionFrame: CGRect |
|
| 1888 |
) -> DragTarget {
|
|
| 1889 |
let handleZone: CGFloat = compactLayout ? 20 : 24 |
|
| 1890 | ||
| 1891 |
if abs(startX - selectionFrame.minX) <= handleZone {
|
|
| 1892 |
return .lowerBound |
|
| 1893 |
} |
|
| 1894 | ||
| 1895 |
if abs(startX - selectionFrame.maxX) <= handleZone {
|
|
| 1896 |
return .upperBound |
|
| 1897 |
} |
|
| 1898 | ||
| 1899 |
if selectionFrame.contains(CGPoint(x: startX, y: selectionFrame.midY)) {
|
|
| 1900 |
return .window |
|
| 1901 |
} |
|
| 1902 | ||
| 1903 |
return startX < selectionFrame.minX ? .lowerBound : .upperBound |
|
| 1904 |
} |
|
| 1905 | ||
| 1906 |
private func adjustedRange( |
|
| 1907 |
from initialRange: ClosedRange<Date>, |
|
| 1908 |
target: DragTarget, |
|
| 1909 |
translationX: CGFloat, |
|
| 1910 |
totalWidth: CGFloat |
|
| 1911 |
) -> ClosedRange<Date> {
|
|
| 1912 |
guard totalSpan > 0, totalWidth > 0 else {
|
|
| 1913 |
return availableTimeRange |
|
| 1914 |
} |
|
| 1915 | ||
| 1916 |
let delta = TimeInterval(translationX / totalWidth) * totalSpan |
|
| 1917 |
let minimumSpan = min(max(minimumSelectionSpan, 0.1), totalSpan) |
|
| 1918 | ||
| 1919 |
switch target {
|
|
| 1920 |
case .lowerBound: |
|
| 1921 |
let maximumLowerBound = initialRange.upperBound.addingTimeInterval(-minimumSpan) |
|
| 1922 |
let newLowerBound = min( |
|
| 1923 |
max(initialRange.lowerBound.addingTimeInterval(delta), availableTimeRange.lowerBound), |
|
| 1924 |
maximumLowerBound |
|
| 1925 |
) |
|
| 1926 |
return normalizedSelectionRange(newLowerBound...initialRange.upperBound) |
|
| 1927 | ||
| 1928 |
case .upperBound: |
|
| 1929 |
let minimumUpperBound = initialRange.lowerBound.addingTimeInterval(minimumSpan) |
|
| 1930 |
let newUpperBound = max( |
|
| 1931 |
min(initialRange.upperBound.addingTimeInterval(delta), availableTimeRange.upperBound), |
|
| 1932 |
minimumUpperBound |
|
| 1933 |
) |
|
| 1934 |
return normalizedSelectionRange(initialRange.lowerBound...newUpperBound) |
|
| 1935 | ||
| 1936 |
case .window: |
|
| 1937 |
let span = initialRange.upperBound.timeIntervalSince(initialRange.lowerBound) |
|
| 1938 |
guard span < totalSpan else { return availableTimeRange }
|
|
| 1939 | ||
| 1940 |
var lowerBound = initialRange.lowerBound.addingTimeInterval(delta) |
|
| 1941 |
var upperBound = initialRange.upperBound.addingTimeInterval(delta) |
|
| 1942 | ||
| 1943 |
if lowerBound < availableTimeRange.lowerBound {
|
|
| 1944 |
upperBound = upperBound.addingTimeInterval( |
|
| 1945 |
availableTimeRange.lowerBound.timeIntervalSince(lowerBound) |
|
| 1946 |
) |
|
| 1947 |
lowerBound = availableTimeRange.lowerBound |
|
| 1948 |
} |
|
| 1949 | ||
| 1950 |
if upperBound > availableTimeRange.upperBound {
|
|
| 1951 |
lowerBound = lowerBound.addingTimeInterval( |
|
| 1952 |
-upperBound.timeIntervalSince(availableTimeRange.upperBound) |
|
| 1953 |
) |
|
| 1954 |
upperBound = availableTimeRange.upperBound |
|
| 1955 |
} |
|
| 1956 | ||
| 1957 |
return normalizedSelectionRange(lowerBound...upperBound) |
|
| 1958 |
} |
|
| 1959 |
} |
|
| 1960 | ||
| 1961 |
private func snappedToEdges( |
|
| 1962 |
_ candidateRange: ClosedRange<Date>, |
|
| 1963 |
target: DragTarget, |
|
| 1964 |
totalWidth: CGFloat |
|
| 1965 |
) -> ClosedRange<Date> {
|
|
| 1966 |
guard totalSpan > 0 else {
|
|
| 1967 |
return availableTimeRange |
|
| 1968 |
} |
|
| 1969 | ||
| 1970 |
let snapInterval = edgeSnapInterval(for: totalWidth) |
|
| 1971 |
let selectionSpan = candidateRange.upperBound.timeIntervalSince(candidateRange.lowerBound) |
|
| 1972 |
var lowerBound = candidateRange.lowerBound |
|
| 1973 |
var upperBound = candidateRange.upperBound |
|
| 1974 | ||
| 1975 |
if target != .upperBound, |
|
| 1976 |
lowerBound.timeIntervalSince(availableTimeRange.lowerBound) <= snapInterval {
|
|
| 1977 |
lowerBound = availableTimeRange.lowerBound |
|
| 1978 |
if target == .window {
|
|
| 1979 |
upperBound = lowerBound.addingTimeInterval(selectionSpan) |
|
| 1980 |
} |
|
| 1981 |
} |
|
| 1982 | ||
| 1983 |
if target != .lowerBound, |
|
| 1984 |
availableTimeRange.upperBound.timeIntervalSince(upperBound) <= snapInterval {
|
|
| 1985 |
upperBound = availableTimeRange.upperBound |
|
| 1986 |
if target == .window {
|
|
| 1987 |
lowerBound = upperBound.addingTimeInterval(-selectionSpan) |
|
| 1988 |
} |
|
| 1989 |
} |
|
| 1990 | ||
| 1991 |
return normalizedSelectionRange(lowerBound...upperBound) |
|
| 1992 |
} |
|
| 1993 | ||
| 1994 |
private func edgeSnapInterval( |
|
| 1995 |
for totalWidth: CGFloat |
|
| 1996 |
) -> TimeInterval {
|
|
| 1997 |
guard totalWidth > 0 else { return minimumSelectionSpan }
|
|
| 1998 | ||
| 1999 |
let snapWidth = min( |
|
| 2000 |
max(compactLayout ? 18 : 22, totalWidth * 0.04), |
|
| 2001 |
totalWidth * 0.18 |
|
| 2002 |
) |
|
| 2003 |
let intervalFromWidth = TimeInterval(snapWidth / totalWidth) * totalSpan |
|
| 2004 |
return min( |
|
| 2005 |
max(intervalFromWidth, minimumSelectionSpan * 0.5), |
|
| 2006 |
totalSpan / 4 |
|
| 2007 |
) |
|
| 2008 |
} |
|
| 2009 | ||
| 2010 |
private func resolvedSelectionRange() -> ClosedRange<Date> {
|
|
| 2011 |
guard let selectedTimeRange else { return availableTimeRange }
|
|
| 2012 | ||
| 2013 |
if isPinnedToPresent {
|
|
| 2014 |
switch presentTrackingMode {
|
|
| 2015 |
case .keepDuration: |
|
| 2016 |
let selectionSpan = selectedTimeRange.upperBound.timeIntervalSince(selectedTimeRange.lowerBound) |
|
| 2017 |
return normalizedSelectionRange( |
|
| 2018 |
availableTimeRange.upperBound.addingTimeInterval(-selectionSpan)...availableTimeRange.upperBound |
|
| 2019 |
) |
|
| 2020 |
case .keepStartTimestamp: |
|
| 2021 |
return normalizedSelectionRange( |
|
| 2022 |
selectedTimeRange.lowerBound...availableTimeRange.upperBound |
|
| 2023 |
) |
|
| 2024 |
} |
|
| 2025 |
} |
|
| 2026 | ||
| 2027 |
return normalizedSelectionRange(selectedTimeRange) |
|
| 2028 |
} |
|
| 2029 | ||
| 2030 |
private func normalizedSelectionRange( |
|
| 2031 |
_ candidateRange: ClosedRange<Date> |
|
| 2032 |
) -> ClosedRange<Date> {
|
|
| 2033 |
let availableSpan = totalSpan |
|
| 2034 |
guard availableSpan > 0 else { return availableTimeRange }
|
|
| 2035 | ||
| 2036 |
let minimumSpan = min(max(minimumSelectionSpan, 0.1), availableSpan) |
|
| 2037 |
let requestedSpan = min( |
|
| 2038 |
max(candidateRange.upperBound.timeIntervalSince(candidateRange.lowerBound), minimumSpan), |
|
| 2039 |
availableSpan |
|
| 2040 |
) |
|
| 2041 | ||
| 2042 |
if requestedSpan >= availableSpan {
|
|
| 2043 |
return availableTimeRange |
|
| 2044 |
} |
|
| 2045 | ||
| 2046 |
var lowerBound = max(candidateRange.lowerBound, availableTimeRange.lowerBound) |
|
| 2047 |
var upperBound = min(candidateRange.upperBound, availableTimeRange.upperBound) |
|
| 2048 | ||
| 2049 |
if upperBound.timeIntervalSince(lowerBound) < requestedSpan {
|
|
| 2050 |
if lowerBound == availableTimeRange.lowerBound {
|
|
| 2051 |
upperBound = lowerBound.addingTimeInterval(requestedSpan) |
|
| 2052 |
} else {
|
|
| 2053 |
lowerBound = upperBound.addingTimeInterval(-requestedSpan) |
|
| 2054 |
} |
|
| 2055 |
} |
|
| 2056 | ||
| 2057 |
if upperBound > availableTimeRange.upperBound {
|
|
| 2058 |
let delta = upperBound.timeIntervalSince(availableTimeRange.upperBound) |
|
| 2059 |
upperBound = availableTimeRange.upperBound |
|
| 2060 |
lowerBound = lowerBound.addingTimeInterval(-delta) |
|
| 2061 |
} |
|
| 2062 | ||
| 2063 |
if lowerBound < availableTimeRange.lowerBound {
|
|
| 2064 |
let delta = availableTimeRange.lowerBound.timeIntervalSince(lowerBound) |
|
| 2065 |
lowerBound = availableTimeRange.lowerBound |
|
| 2066 |
upperBound = upperBound.addingTimeInterval(delta) |
|
| 2067 |
} |
|
| 2068 | ||
| 2069 |
return lowerBound...upperBound |
|
| 2070 |
} |
|
| 2071 | ||
| 2072 |
private func shouldKeepPresentPin( |
|
| 2073 |
during target: DragTarget, |
|
| 2074 |
initialRange: ClosedRange<Date>, |
|
| 2075 |
resultingRange: ClosedRange<Date> |
|
| 2076 |
) -> Bool {
|
|
| 2077 |
let startedPinnedToPresent = |
|
| 2078 |
isPinnedToPresent || |
|
| 2079 |
selectionCoversFullRange(initialRange) |
|
| 2080 | ||
| 2081 |
guard startedPinnedToPresent else {
|
|
| 2082 |
return selectionTouchesPresent(resultingRange) |
|
| 2083 |
} |
|
| 2084 | ||
| 2085 |
switch target {
|
|
| 2086 |
case .lowerBound: |
|
| 2087 |
return true |
|
| 2088 |
case .upperBound, .window: |
|
| 2089 |
return selectionTouchesPresent(resultingRange) |
|
| 2090 |
} |
|
| 2091 |
} |
|
| 2092 | ||
| 2093 |
private func applySelection( |
|
| 2094 |
_ candidateRange: ClosedRange<Date>, |
|
| 2095 |
pinToPresent: Bool |
|
| 2096 |
) {
|
|
| 2097 |
let normalizedRange = normalizedSelectionRange(candidateRange) |
|
| 2098 | ||
| 2099 |
if selectionCoversFullRange(normalizedRange) && !pinToPresent {
|
|
| 2100 |
selectedTimeRange = nil |
|
| 2101 |
} else {
|
|
| 2102 |
selectedTimeRange = normalizedRange |
|
| 2103 |
} |
|
| 2104 | ||
| 2105 |
isPinnedToPresent = pinToPresent |
|
| 2106 |
} |
|
| 2107 | ||
| 2108 |
private func selectionTouchesPresent( |
|
| 2109 |
_ range: ClosedRange<Date> |
|
| 2110 |
) -> Bool {
|
|
| 2111 |
let tolerance = max(0.5, minimumSelectionSpan * 0.25) |
|
| 2112 |
return abs(range.upperBound.timeIntervalSince(availableTimeRange.upperBound)) <= tolerance |
|
| 2113 |
} |
|
| 2114 | ||
| 2115 |
private func selectionCoversFullRange( |
|
| 2116 |
_ range: ClosedRange<Date> |
|
| 2117 |
) -> Bool {
|
|
| 2118 |
let tolerance = max(0.5, minimumSelectionSpan * 0.25) |
|
| 2119 |
return abs(range.lowerBound.timeIntervalSince(availableTimeRange.lowerBound)) <= tolerance && |
|
| 2120 |
abs(range.upperBound.timeIntervalSince(availableTimeRange.upperBound)) <= tolerance |
|
| 2121 |
} |
|
| 2122 | ||
| 2123 |
private func selectionFrame(in size: CGSize) -> CGRect {
|
|
| 2124 |
selectionFrame(for: currentRange, width: size.width) |
|
| 2125 |
} |
|
| 2126 | ||
| 2127 |
private func selectionFrame( |
|
| 2128 |
for range: ClosedRange<Date>, |
|
| 2129 |
width: CGFloat |
|
| 2130 |
) -> CGRect {
|
|
| 2131 |
guard width > 0, totalSpan > 0 else {
|
|
| 2132 |
return CGRect(origin: .zero, size: CGSize(width: width, height: trackHeight)) |
|
| 2133 |
} |
|
| 2134 | ||
| 2135 |
let minimumX = xPosition(for: range.lowerBound, width: width) |
|
| 2136 |
let maximumX = xPosition(for: range.upperBound, width: width) |
|
| 2137 |
return CGRect( |
|
| 2138 |
x: minimumX, |
|
| 2139 |
y: 0, |
|
| 2140 |
width: max(maximumX - minimumX, 2), |
|
| 2141 |
height: trackHeight |
|
| 2142 |
) |
|
| 2143 |
} |
|
| 2144 | ||
| 2145 |
private func xPosition(for date: Date, width: CGFloat) -> CGFloat {
|
|
| 2146 |
guard width > 0, totalSpan > 0 else { return 0 }
|
|
| 2147 | ||
| 2148 |
let offset = date.timeIntervalSince(availableTimeRange.lowerBound) |
|
| 2149 |
let normalizedOffset = min(max(offset / totalSpan, 0), 1) |
|
| 2150 |
return CGFloat(normalizedOffset) * width |
|
| 2151 |
} |
|
| 2152 | ||
| 2153 |
private func boundaryLabel(for date: Date) -> String {
|
|
| 2154 |
date.format(as: boundaryDateFormat) |
|
| 2155 |
} |
|
| 2156 | ||
| 2157 |
private func selectionSummary( |
|
| 2158 |
for range: ClosedRange<Date> |
|
| 2159 |
) -> String {
|
|
| 2160 |
"\(range.lowerBound.format(as: summaryDateFormat)) - \(range.upperBound.format(as: summaryDateFormat))" |
|
| 2161 |
} |
|
| 2162 | ||
| 2163 |
private var boundaryDateFormat: String {
|
|
| 2164 |
switch totalSpan {
|
|
| 2165 |
case 0..<86400: |
|
| 2166 |
return "HH:mm" |
|
| 2167 |
case 86400..<604800: |
|
| 2168 |
return "MMM d HH:mm" |
|
| 2169 |
default: |
|
| 2170 |
return "MMM d" |
|
| 2171 |
} |
|
| 2172 |
} |
|
| 2173 | ||
| 2174 |
private var summaryDateFormat: String {
|
|
| 2175 |
switch totalSpan {
|
|
| 2176 |
case 0..<3600: |
|
| 2177 |
return "HH:mm:ss" |
|
| 2178 |
case 3600..<172800: |
|
| 2179 |
return "MMM d HH:mm" |
|
| 2180 |
default: |
|
| 2181 |
return "MMM d" |
|
| 2182 |
} |
|
| 2183 |
} |
|
| 2184 |
} |
|
| 2185 | ||
| 2186 |
struct Chart : View {
|
|
| 2187 | ||
| 2188 |
let points: [Measurements.Measurement.Point] |
|
| 2189 |
let context: ChartContext |
|
| 2190 |
var areaChart: Bool = false |
|
| 2191 |
var strokeColor: Color = .black |
|
| 2192 |
var areaFillColor: Color? = nil |
|
| 2193 | ||
| 2194 |
var body : some View {
|
|
| 2195 |
GeometryReader { geometry in
|
|
| 2196 |
if self.areaChart {
|
|
| 2197 |
let fillColor = areaFillColor ?? strokeColor.opacity(0.2) |
|
| 2198 |
self.path( geometry: geometry ) |
|
| 2199 |
.fill( |
|
| 2200 |
LinearGradient( |
|
| 2201 |
gradient: .init( |
|
| 2202 |
colors: [ |
|
| 2203 |
fillColor.opacity(0.72), |
|
| 2204 |
fillColor.opacity(0.18) |
|
| 2205 |
] |
|
| 2206 |
), |
|
| 2207 |
startPoint: .init(x: 0.5, y: 0.08), |
|
| 2208 |
endPoint: .init(x: 0.5, y: 0.92) |
|
| 2209 |
) |
|
| 2210 |
) |
|
| 2211 |
} else {
|
|
| 2212 |
self.path( geometry: geometry ) |
|
| 2213 |
.stroke(self.strokeColor, style: StrokeStyle(lineWidth: 2, lineCap: .round, lineJoin: .round)) |
|
| 2214 |
} |
|
| 2215 |
} |
|
| 2216 |
} |
|
| 2217 | ||
| 2218 |
fileprivate func path(geometry: GeometryProxy) -> Path {
|
|
| 2219 |
return Path { path in
|
|
| 2220 |
var firstSample: Measurements.Measurement.Point? |
|
| 2221 |
var lastSample: Measurements.Measurement.Point? |
|
| 2222 |
var needsMove = true |
|
| 2223 | ||
| 2224 |
for point in points {
|
|
| 2225 |
if point.isDiscontinuity {
|
|
| 2226 |
needsMove = true |
|
| 2227 |
continue |
|
| 2228 |
} |
|
| 2229 | ||
| 2230 |
let item = context.placeInRect(point: point.point()) |
|
| 2231 |
let renderedPoint = CGPoint( |
|
| 2232 |
x: item.x * geometry.size.width, |
|
| 2233 |
y: item.y * geometry.size.height |
|
| 2234 |
) |
|
| 2235 | ||
| 2236 |
if firstSample == nil {
|
|
| 2237 |
firstSample = point |
|
| 2238 |
} |
|
| 2239 |
lastSample = point |
|
| 2240 | ||
| 2241 |
if needsMove {
|
|
| 2242 |
path.move(to: renderedPoint) |
|
| 2243 |
needsMove = false |
|
| 2244 |
} else {
|
|
| 2245 |
path.addLine(to: renderedPoint) |
|
| 2246 |
} |
|
| 2247 |
} |
|
| 2248 | ||
| 2249 |
if self.areaChart, let firstSample, let lastSample {
|
|
| 2250 |
let lastPointX = context.placeInRect(point: CGPoint(x: lastSample.point().x, y: context.origin.y )) |
|
| 2251 |
let firstPointX = context.placeInRect(point: CGPoint(x: firstSample.point().x, y: context.origin.y )) |
|
| 2252 |
path.addLine(to: CGPoint(x: lastPointX.x * geometry.size.width, y: lastPointX.y * geometry.size.height ) ) |
|
| 2253 |
path.addLine(to: CGPoint(x: firstPointX.x * geometry.size.width, y: firstPointX.y * geometry.size.height ) ) |
|
| 2254 |
// MARK: Nu e nevoie. Fill inchide automat calea |
|
| 2255 |
// path.closeSubpath() |
|
| 2256 |
} |
|
| 2257 |
} |
|
| 2258 |
} |
|
| 2259 | ||
| 2260 |
} |