Newer
■
■
■
■
■
■
■
■
■
■
Older
1296 lines
|
47.759kb
| 1 |
// |
|
| 2 |
// MeasurementChartView.swift |
|
| 3 |
// USB Meter |
|
| 4 |
// |
|
| 5 |
// Created by Bogdan Timofte on 06/05/2020. |
|
| 6 |
// Copyright © 2020 Bogdan Timofte. All rights reserved. |
|
| 7 |
// |
|
| 8 | ||
| 9 |
import SwiftUI |
|
| 10 | ||
| 11 |
struct MeasurementChartView: View {
|
|
| 12 |
private enum SeriesKind {
|
|
| 13 |
case power |
|
| 14 |
case voltage |
|
| 15 |
case current |
|
| 16 | ||
| 17 |
var unit: String {
|
|
| 18 |
switch self {
|
|
| 19 |
case .power: return "W" |
|
| 20 |
case .voltage: return "V" |
|
| 21 |
case .current: return "A" |
|
| 22 |
} |
|
| 23 |
} |
|
| 24 | ||
| 25 |
var tint: Color {
|
|
| 26 |
switch self {
|
|
| 27 |
case .power: return .red |
|
| 28 |
case .voltage: return .green |
|
| 29 |
case .current: return .blue |
|
| 30 |
} |
|
| 31 |
} |
|
| 32 |
} |
|
| 33 | ||
| 34 |
private struct SeriesData {
|
|
| 35 |
let kind: SeriesKind |
|
| 36 |
let points: [Measurements.Measurement.Point] |
|
| 37 |
let samplePoints: [Measurements.Measurement.Point] |
|
| 38 |
let context: ChartContext |
|
| 39 |
let autoLowerBound: Double |
|
| 40 |
let autoUpperBound: Double |
|
| 41 |
let maximumSampleValue: Double? |
|
| 42 |
} |
|
| 43 | ||
| 44 |
private let minimumTimeSpan: TimeInterval = 1 |
|
| 45 |
private let minimumVoltageSpan = 0.5 |
|
| 46 |
private let minimumCurrentSpan = 0.5 |
|
| 47 |
private let minimumPowerSpan = 0.5 |
|
| 48 |
private let defaultEmptyChartTimeSpan: TimeInterval = 60 |
|
| 49 | ||
| 50 |
let compactLayout: Bool |
|
| 51 |
let availableSize: CGSize |
|
| 52 | ||
| 53 |
@EnvironmentObject private var measurements: Measurements |
|
| 54 |
@Environment(\.horizontalSizeClass) private var horizontalSizeClass |
|
| 55 |
@Environment(\.verticalSizeClass) private var verticalSizeClass |
|
| 56 |
var timeRange: ClosedRange<Date>? = nil |
|
| 57 | ||
| 58 |
@State var displayVoltage: Bool = false |
|
| 59 |
@State var displayCurrent: Bool = false |
|
| 60 |
@State var displayPower: Bool = true |
|
| 61 |
@State private var showResetConfirmation: Bool = false |
|
| 62 |
@State private var chartNow: Date = Date() |
|
| 63 |
@State private var pinOrigin: Bool = false |
|
| 64 |
@State private var useSharedOrigin: Bool = false |
|
| 65 |
@State private var sharedAxisOrigin: Double = 0 |
|
| 66 |
@State private var sharedAxisUpperBound: Double = 1 |
|
| 67 |
@State private var powerAxisOrigin: Double = 0 |
|
| 68 |
@State private var voltageAxisOrigin: Double = 0 |
|
| 69 |
@State private var currentAxisOrigin: Double = 0 |
|
| 70 |
let xLabels: Int = 4 |
|
| 71 |
let yLabels: Int = 4 |
|
| 72 | ||
| 73 |
init( |
|
| 74 |
compactLayout: Bool = false, |
|
| 75 |
availableSize: CGSize = .zero, |
|
| 76 |
timeRange: ClosedRange<Date>? = nil |
|
| 77 |
) {
|
|
| 78 |
self.compactLayout = compactLayout |
|
| 79 |
self.availableSize = availableSize |
|
| 80 |
self.timeRange = timeRange |
|
| 81 |
} |
|
| 82 | ||
| 83 |
private var axisColumnWidth: CGFloat {
|
|
| 84 |
if compactLayout {
|
|
| 85 |
return 38 |
|
| 86 |
} |
|
| 87 |
return isLargeDisplay ? 62 : 46 |
|
| 88 |
} |
|
| 89 | ||
| 90 |
private var chartSectionSpacing: CGFloat {
|
|
| 91 |
compactLayout ? 6 : 8 |
|
| 92 |
} |
|
| 93 | ||
| 94 |
private var xAxisHeight: CGFloat {
|
|
| 95 |
if compactLayout {
|
|
| 96 |
return 24 |
|
| 97 |
} |
|
| 98 |
return isLargeDisplay ? 36 : 28 |
|
| 99 |
} |
|
| 100 | ||
| 101 |
private var isPortraitLayout: Bool {
|
|
| 102 |
guard availableSize != .zero else { return verticalSizeClass != .compact }
|
|
| 103 |
return availableSize.height >= availableSize.width |
|
| 104 |
} |
|
| 105 | ||
| 106 |
private var isIPhone: Bool {
|
|
| 107 |
#if os(iOS) |
|
| 108 |
return UIDevice.current.userInterfaceIdiom == .phone |
|
| 109 |
#else |
|
| 110 |
return false |
|
| 111 |
#endif |
|
| 112 |
} |
|
| 113 | ||
| 114 |
private enum OriginControlsPlacement {
|
|
| 115 |
case aboveXAxisLegend |
|
| 116 |
case overXAxisLegend |
|
| 117 |
case belowXAxisLegend |
|
| 118 |
} |
|
| 119 | ||
| 120 |
private var originControlsPlacement: OriginControlsPlacement {
|
|
| 121 |
if isIPhone {
|
|
| 122 |
return isPortraitLayout ? .aboveXAxisLegend : .overXAxisLegend |
|
| 123 |
} |
|
| 124 |
return .belowXAxisLegend |
|
| 125 |
} |
|
| 126 | ||
| 127 |
private var plotSectionHeight: CGFloat {
|
|
| 128 |
if availableSize == .zero {
|
|
| 129 |
return compactLayout ? 300 : 380 |
|
| 130 |
} |
|
| 131 | ||
| 132 |
if isPortraitLayout {
|
|
| 133 |
// Keep the rendered plot area (plot section minus X axis) above half of the display height. |
|
| 134 |
let minimumPlotHeight = max(availableSize.height * 0.52, compactLayout ? 250 : 320) |
|
| 135 |
return minimumPlotHeight + xAxisHeight |
|
| 136 |
} |
|
| 137 | ||
| 138 |
if compactLayout {
|
|
| 139 |
return min(max(availableSize.height * 0.36, 240), 300) |
|
| 140 |
} |
|
| 141 | ||
| 142 |
return min(max(availableSize.height * 0.5, 300), 440) |
|
| 143 |
} |
|
| 144 | ||
| 145 |
private var stackedToolbarLayout: Bool {
|
|
| 146 |
if availableSize.width > 0 {
|
|
| 147 |
return availableSize.width < 640 |
|
| 148 |
} |
|
| 149 | ||
| 150 |
return horizontalSizeClass == .compact && verticalSizeClass != .compact |
|
| 151 |
} |
|
| 152 | ||
| 153 |
private var showsLabeledOriginControls: Bool {
|
|
| 154 |
!compactLayout && !stackedToolbarLayout |
|
| 155 |
} |
|
| 156 | ||
| 157 |
private var isLargeDisplay: Bool {
|
|
| 158 |
#if os(iOS) |
|
| 159 |
if UIDevice.current.userInterfaceIdiom == .phone {
|
|
| 160 |
return false |
|
| 161 |
} |
|
| 162 |
#endif |
|
| 163 | ||
| 164 |
if availableSize.width > 0 {
|
|
| 165 |
return availableSize.width >= 900 || availableSize.height >= 700 |
|
| 166 |
} |
|
| 167 |
return !compactLayout && horizontalSizeClass == .regular && verticalSizeClass == .regular |
|
| 168 |
} |
|
| 169 | ||
| 170 |
private var chartBaseFont: Font {
|
|
| 171 |
if isIPhone && isPortraitLayout {
|
|
| 172 |
return .caption |
|
| 173 |
} |
|
| 174 |
return isLargeDisplay ? .callout : .footnote |
|
| 175 |
} |
|
| 176 | ||
| 177 |
private var usesCompactLandscapeOriginControls: Bool {
|
|
| 178 |
isIPhone && !isPortraitLayout && availableSize.width > 0 && availableSize.width <= 740 |
|
| 179 |
} |
|
| 180 | ||
| 181 |
var body: some View {
|
|
| 182 |
let powerSeries = series(for: measurements.power, kind: .power, minimumYSpan: minimumPowerSpan) |
|
| 183 |
let voltageSeries = series(for: measurements.voltage, kind: .voltage, minimumYSpan: minimumVoltageSpan) |
|
| 184 |
let currentSeries = series(for: measurements.current, kind: .current, minimumYSpan: minimumCurrentSpan) |
|
| 185 |
let primarySeries = displayedPrimarySeries( |
|
| 186 |
powerSeries: powerSeries, |
|
| 187 |
voltageSeries: voltageSeries, |
|
| 188 |
currentSeries: currentSeries |
|
| 189 |
) |
|
| 190 | ||
| 191 |
Group {
|
|
| 192 |
if let primarySeries {
|
|
| 193 |
VStack(alignment: .leading, spacing: 12) {
|
|
| 194 |
chartToggleBar() |
|
| 195 | ||
| 196 |
GeometryReader { geometry in
|
|
| 197 |
let plotHeight = max(geometry.size.height - xAxisHeight, compactLayout ? 180 : 220) |
|
| 198 | ||
| 199 |
VStack(spacing: 6) {
|
|
| 200 |
HStack(spacing: chartSectionSpacing) {
|
|
| 201 |
primaryAxisView( |
|
| 202 |
height: plotHeight, |
|
| 203 |
powerSeries: powerSeries, |
|
| 204 |
voltageSeries: voltageSeries, |
|
| 205 |
currentSeries: currentSeries |
|
| 206 |
) |
|
| 207 |
.frame(width: axisColumnWidth, height: plotHeight) |
|
| 208 | ||
| 209 |
ZStack {
|
|
| 210 |
RoundedRectangle(cornerRadius: 18, style: .continuous) |
|
| 211 |
.fill(Color.primary.opacity(0.05)) |
|
| 212 | ||
| 213 |
RoundedRectangle(cornerRadius: 18, style: .continuous) |
|
| 214 |
.stroke(Color.secondary.opacity(0.16), lineWidth: 1) |
|
| 215 | ||
| 216 |
horizontalGuides(context: primarySeries.context) |
|
| 217 |
verticalGuides(context: primarySeries.context) |
|
| 218 |
discontinuityMarkers(points: primarySeries.points, context: primarySeries.context) |
|
| 219 |
renderedChart( |
|
| 220 |
powerSeries: powerSeries, |
|
| 221 |
voltageSeries: voltageSeries, |
|
| 222 |
currentSeries: currentSeries |
|
| 223 |
) |
|
| 224 |
} |
|
| 225 |
.clipShape(RoundedRectangle(cornerRadius: 18, style: .continuous)) |
|
| 226 |
.frame(maxWidth: .infinity) |
|
| 227 |
.frame(height: plotHeight) |
|
| 228 | ||
| 229 |
secondaryAxisView( |
|
| 230 |
height: plotHeight, |
|
| 231 |
powerSeries: powerSeries, |
|
| 232 |
voltageSeries: voltageSeries, |
|
| 233 |
currentSeries: currentSeries |
|
| 234 |
) |
|
| 235 |
.frame(width: axisColumnWidth, height: plotHeight) |
|
| 236 |
} |
|
| 237 |
.overlay(alignment: .bottom) {
|
|
| 238 |
if originControlsPlacement == .aboveXAxisLegend {
|
|
| 239 |
scaleControlsPill( |
|
| 240 |
voltageSeries: voltageSeries, |
|
| 241 |
currentSeries: currentSeries |
|
| 242 |
) |
|
| 243 |
.padding(.bottom, compactLayout ? 6 : 10) |
|
| 244 |
} |
|
| 245 |
} |
|
| 246 | ||
| 247 |
switch originControlsPlacement {
|
|
| 248 |
case .aboveXAxisLegend: |
|
| 249 |
xAxisLabelsView(context: primarySeries.context) |
|
| 250 |
.frame(height: xAxisHeight) |
|
| 251 |
case .overXAxisLegend: |
|
| 252 |
xAxisLabelsView(context: primarySeries.context) |
|
| 253 |
.frame(height: xAxisHeight) |
|
| 254 |
.overlay(alignment: .center) {
|
|
| 255 |
scaleControlsPill( |
|
| 256 |
voltageSeries: voltageSeries, |
|
| 257 |
currentSeries: currentSeries |
|
| 258 |
) |
|
| 259 |
.offset(y: usesCompactLandscapeOriginControls ? 2 : (compactLayout ? 8 : 10)) |
|
| 260 |
} |
|
| 261 |
case .belowXAxisLegend: |
|
| 262 |
xAxisLabelsView(context: primarySeries.context) |
|
| 263 |
.frame(height: xAxisHeight) |
|
| 264 | ||
| 265 |
HStack {
|
|
| 266 |
Spacer(minLength: 0) |
|
| 267 |
scaleControlsPill( |
|
| 268 |
voltageSeries: voltageSeries, |
|
| 269 |
currentSeries: currentSeries |
|
| 270 |
) |
|
| 271 |
Spacer(minLength: 0) |
|
| 272 |
} |
|
| 273 |
} |
|
| 274 |
} |
|
| 275 |
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top) |
|
| 276 |
} |
|
| 277 |
.frame(height: plotSectionHeight) |
|
| 278 |
} |
|
| 279 |
} else {
|
|
| 280 |
VStack(alignment: .leading, spacing: 12) {
|
|
| 281 |
chartToggleBar() |
|
| 282 |
Text("Select at least one measurement series.")
|
|
| 283 |
.foregroundColor(.secondary) |
|
| 284 |
} |
|
| 285 |
} |
|
| 286 |
} |
|
| 287 |
.font(chartBaseFont) |
|
| 288 |
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
|
| 289 |
.onReceive(Timer.publish(every: 1, on: .main, in: .common).autoconnect()) { now in
|
|
| 290 |
guard timeRange == nil else { return }
|
|
| 291 |
chartNow = now |
|
| 292 |
} |
|
| 293 |
} |
|
| 294 | ||
| 295 |
private func chartToggleBar() -> some View {
|
|
| 296 |
let condensedLayout = compactLayout || verticalSizeClass == .compact |
|
| 297 |
let sectionSpacing: CGFloat = condensedLayout ? 8 : (isLargeDisplay ? 12 : 10) |
|
| 298 | ||
| 299 |
let controlsPanel = HStack(alignment: .center, spacing: sectionSpacing) {
|
|
| 300 |
seriesToggleRow(condensedLayout: condensedLayout) |
|
| 301 |
} |
|
| 302 |
.padding(.horizontal, condensedLayout ? 10 : (isLargeDisplay ? 14 : 12)) |
|
| 303 |
.padding(.vertical, condensedLayout ? 8 : (isLargeDisplay ? 12 : 10)) |
|
| 304 |
.background( |
|
| 305 |
RoundedRectangle(cornerRadius: condensedLayout ? 14 : 16, style: .continuous) |
|
| 306 |
.fill(Color.primary.opacity(0.045)) |
|
| 307 |
) |
|
| 308 |
.overlay( |
|
| 309 |
RoundedRectangle(cornerRadius: condensedLayout ? 14 : 16, style: .continuous) |
|
| 310 |
.stroke(Color.secondary.opacity(0.14), lineWidth: 1) |
|
| 311 |
) |
|
| 312 | ||
| 313 |
return Group {
|
|
| 314 |
if stackedToolbarLayout {
|
|
| 315 |
VStack(alignment: .leading, spacing: condensedLayout ? 8 : 10) {
|
|
| 316 |
controlsPanel |
|
| 317 |
HStack {
|
|
| 318 |
Spacer(minLength: 0) |
|
| 319 |
resetBufferButton(condensedLayout: condensedLayout) |
|
| 320 |
} |
|
| 321 |
} |
|
| 322 |
} else {
|
|
| 323 |
HStack(alignment: .top, spacing: isLargeDisplay ? 14 : 12) {
|
|
| 324 |
controlsPanel |
|
| 325 |
Spacer(minLength: 0) |
|
| 326 |
resetBufferButton(condensedLayout: condensedLayout) |
|
| 327 |
} |
|
| 328 |
} |
|
| 329 |
} |
|
| 330 |
.frame(maxWidth: .infinity, alignment: .leading) |
|
| 331 |
} |
|
| 332 | ||
| 333 |
private var shouldFloatScaleControlsOverChart: Bool {
|
|
| 334 |
#if os(iOS) |
|
| 335 |
if availableSize.width > 0, availableSize.height > 0 {
|
|
| 336 |
return availableSize.width > availableSize.height |
|
| 337 |
} |
|
| 338 |
return horizontalSizeClass != .compact && verticalSizeClass == .compact |
|
| 339 |
#else |
|
| 340 |
return false |
|
| 341 |
#endif |
|
| 342 |
} |
|
| 343 | ||
| 344 |
private func scaleControlsPill( |
|
| 345 |
voltageSeries: SeriesData, |
|
| 346 |
currentSeries: SeriesData |
|
| 347 |
) -> some View {
|
|
| 348 |
let condensedLayout = compactLayout || verticalSizeClass == .compact |
|
| 349 |
let showsCardBackground = !(isIPhone && isPortraitLayout) && !shouldFloatScaleControlsOverChart |
|
| 350 |
let horizontalPadding: CGFloat = usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 10 : (isLargeDisplay ? 12 : 10)) |
|
| 351 |
let verticalPadding: CGFloat = usesCompactLandscapeOriginControls ? 5 : (condensedLayout ? 8 : (isLargeDisplay ? 10 : 8)) |
|
| 352 | ||
| 353 |
return originControlsRow( |
|
| 354 |
voltageSeries: voltageSeries, |
|
| 355 |
currentSeries: currentSeries, |
|
| 356 |
condensedLayout: condensedLayout, |
|
| 357 |
showsLabel: !shouldFloatScaleControlsOverChart && showsLabeledOriginControls |
|
| 358 |
) |
|
| 359 |
.padding(.horizontal, horizontalPadding) |
|
| 360 |
.padding(.vertical, verticalPadding) |
|
| 361 |
.background( |
|
| 362 |
Capsule(style: .continuous) |
|
| 363 |
.fill(showsCardBackground ? Color.primary.opacity(0.08) : Color.clear) |
|
| 364 |
) |
|
| 365 |
.overlay( |
|
| 366 |
Capsule(style: .continuous) |
|
| 367 |
.stroke( |
|
| 368 |
showsCardBackground ? Color.secondary.opacity(0.18) : Color.clear, |
|
| 369 |
lineWidth: 1 |
|
| 370 |
) |
|
| 371 |
) |
|
| 372 |
} |
|
| 373 | ||
| 374 |
private func seriesToggleRow(condensedLayout: Bool) -> some View {
|
|
| 375 |
HStack(spacing: condensedLayout ? 6 : 8) {
|
|
| 376 |
seriesToggleButton(title: "Voltage", isOn: displayVoltage, condensedLayout: condensedLayout) {
|
|
| 377 |
displayVoltage.toggle() |
|
| 378 |
if displayVoltage {
|
|
| 379 |
displayPower = false |
|
| 380 |
} |
|
| 381 |
} |
|
| 382 | ||
| 383 |
seriesToggleButton(title: "Current", isOn: displayCurrent, condensedLayout: condensedLayout) {
|
|
| 384 |
displayCurrent.toggle() |
|
| 385 |
if displayCurrent {
|
|
| 386 |
displayPower = false |
|
| 387 |
} |
|
| 388 |
} |
|
| 389 | ||
| 390 |
seriesToggleButton(title: "Power", isOn: displayPower, condensedLayout: condensedLayout) {
|
|
| 391 |
displayPower.toggle() |
|
| 392 |
if displayPower {
|
|
| 393 |
displayCurrent = false |
|
| 394 |
displayVoltage = false |
|
| 395 |
} |
|
| 396 |
} |
|
| 397 |
} |
|
| 398 |
} |
|
| 399 | ||
| 400 |
private func originControlsRow( |
|
| 401 |
voltageSeries: SeriesData, |
|
| 402 |
currentSeries: SeriesData, |
|
| 403 |
condensedLayout: Bool, |
|
| 404 |
showsLabel: Bool |
|
| 405 |
) -> some View {
|
|
| 406 |
HStack(spacing: usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 8 : 10)) {
|
|
| 407 |
if supportsSharedOrigin {
|
|
| 408 |
symbolControlChip( |
|
| 409 |
systemImage: "equal.circle", |
|
| 410 |
enabled: true, |
|
| 411 |
active: useSharedOrigin, |
|
| 412 |
condensedLayout: condensedLayout, |
|
| 413 |
showsLabel: showsLabel, |
|
| 414 |
label: "Match Y Scale", |
|
| 415 |
accessibilityLabel: "Match Y scale" |
|
| 416 |
) {
|
|
| 417 |
toggleSharedOrigin( |
|
| 418 |
voltageSeries: voltageSeries, |
|
| 419 |
currentSeries: currentSeries |
|
| 420 |
) |
|
| 421 |
} |
|
| 422 |
} |
|
| 423 | ||
| 424 |
symbolControlChip( |
|
| 425 |
systemImage: pinOrigin ? "pin.fill" : "pin.slash", |
|
| 426 |
enabled: true, |
|
| 427 |
active: pinOrigin, |
|
| 428 |
condensedLayout: condensedLayout, |
|
| 429 |
showsLabel: showsLabel, |
|
| 430 |
label: pinOrigin ? "Origin Locked" : "Origin Auto", |
|
| 431 |
accessibilityLabel: pinOrigin ? "Unlock origin" : "Lock origin" |
|
| 432 |
) {
|
|
| 433 |
togglePinnedOrigin( |
|
| 434 |
voltageSeries: voltageSeries, |
|
| 435 |
currentSeries: currentSeries |
|
| 436 |
) |
|
| 437 |
} |
|
| 438 | ||
| 439 |
if !pinnedOriginIsZero {
|
|
| 440 |
symbolControlChip( |
|
| 441 |
systemImage: "0.circle", |
|
| 442 |
enabled: true, |
|
| 443 |
active: false, |
|
| 444 |
condensedLayout: condensedLayout, |
|
| 445 |
showsLabel: showsLabel, |
|
| 446 |
label: "Origin 0", |
|
| 447 |
accessibilityLabel: "Set origin to zero" |
|
| 448 |
) {
|
|
| 449 |
setVisibleOriginsToZero() |
|
| 450 |
} |
|
| 451 |
} |
|
| 452 | ||
| 453 |
} |
|
| 454 |
} |
|
| 455 | ||
| 456 |
private func seriesToggleButton( |
|
| 457 |
title: String, |
|
| 458 |
isOn: Bool, |
|
| 459 |
condensedLayout: Bool, |
|
| 460 |
action: @escaping () -> Void |
|
| 461 |
) -> some View {
|
|
| 462 |
Button(action: action) {
|
|
| 463 |
Text(title) |
|
| 464 |
.font(seriesToggleFont(condensedLayout: condensedLayout)) |
|
| 465 |
.lineLimit(1) |
|
| 466 |
.minimumScaleFactor(0.82) |
|
| 467 |
.foregroundColor(isOn ? .white : .blue) |
|
| 468 |
.padding(.horizontal, condensedLayout ? 10 : (isLargeDisplay ? 16 : 12)) |
|
| 469 |
.padding(.vertical, condensedLayout ? 7 : (isLargeDisplay ? 10 : 8)) |
|
| 470 |
.frame(minWidth: condensedLayout ? 0 : (isLargeDisplay ? 104 : 84)) |
|
| 471 |
.frame(maxWidth: stackedToolbarLayout ? .infinity : nil) |
|
| 472 |
.background( |
|
| 473 |
RoundedRectangle(cornerRadius: condensedLayout ? 13 : 15, style: .continuous) |
|
| 474 |
.fill(isOn ? Color.blue.opacity(0.88) : Color.blue.opacity(0.12)) |
|
| 475 |
) |
|
| 476 |
.overlay( |
|
| 477 |
RoundedRectangle(cornerRadius: condensedLayout ? 13 : 15, style: .continuous) |
|
| 478 |
.stroke(Color.blue, lineWidth: 1.5) |
|
| 479 |
) |
|
| 480 |
} |
|
| 481 |
.buttonStyle(.plain) |
|
| 482 |
} |
|
| 483 | ||
| 484 |
private func symbolControlChip( |
|
| 485 |
systemImage: String, |
|
| 486 |
enabled: Bool, |
|
| 487 |
active: Bool, |
|
| 488 |
condensedLayout: Bool, |
|
| 489 |
showsLabel: Bool, |
|
| 490 |
label: String, |
|
| 491 |
accessibilityLabel: String, |
|
| 492 |
action: @escaping () -> Void |
|
| 493 |
) -> some View {
|
|
| 494 |
Button(action: {
|
|
| 495 |
action() |
|
| 496 |
}) {
|
|
| 497 |
Group {
|
|
| 498 |
if showsLabel {
|
|
| 499 |
Label(label, systemImage: systemImage) |
|
| 500 |
.font(controlChipFont(condensedLayout: condensedLayout)) |
|
| 501 |
.padding(.horizontal, usesCompactLandscapeOriginControls ? 8 : (condensedLayout ? 10 : 12)) |
|
| 502 |
.padding(.vertical, usesCompactLandscapeOriginControls ? 6 : (condensedLayout ? 7 : (isLargeDisplay ? 9 : 8))) |
|
| 503 |
} else {
|
|
| 504 |
Image(systemName: systemImage) |
|
| 505 |
.font(.system(size: usesCompactLandscapeOriginControls ? 13 : (condensedLayout ? 15 : (isLargeDisplay ? 18 : 16)), weight: .semibold)) |
|
| 506 |
.frame( |
|
| 507 |
width: usesCompactLandscapeOriginControls ? 30 : (condensedLayout ? 34 : (isLargeDisplay ? 42 : 38)), |
|
| 508 |
height: usesCompactLandscapeOriginControls ? 30 : (condensedLayout ? 34 : (isLargeDisplay ? 42 : 38)) |
|
| 509 |
) |
|
| 510 |
} |
|
| 511 |
} |
|
| 512 |
.background( |
|
| 513 |
Capsule(style: .continuous) |
|
| 514 |
.fill(active ? Color.orange.opacity(0.18) : Color.secondary.opacity(0.10)) |
|
| 515 |
) |
|
| 516 |
} |
|
| 517 |
.buttonStyle(.plain) |
|
| 518 |
.foregroundColor(enabled ? .primary : .secondary) |
|
| 519 |
.opacity(enabled ? 1 : 0.55) |
|
| 520 |
.accessibilityLabel(accessibilityLabel) |
|
| 521 |
} |
|
| 522 | ||
| 523 |
private func resetBufferButton(condensedLayout: Bool) -> some View {
|
|
| 524 |
Button(action: {
|
|
| 525 |
showResetConfirmation = true |
|
| 526 |
}) {
|
|
| 527 |
Label(condensedLayout ? "Reset" : "Reset Buffer", systemImage: "trash") |
|
| 528 |
.font(controlChipFont(condensedLayout: condensedLayout)) |
|
| 529 |
.padding(.horizontal, condensedLayout ? 14 : 16) |
|
| 530 |
.padding(.vertical, condensedLayout ? 10 : (isLargeDisplay ? 12 : 11)) |
|
| 531 |
} |
|
| 532 |
.buttonStyle(.plain) |
|
| 533 |
.foregroundColor(.white) |
|
| 534 |
.background( |
|
| 535 |
Capsule(style: .continuous) |
|
| 536 |
.fill(Color.red.opacity(0.8)) |
|
| 537 |
) |
|
| 538 |
.fixedSize(horizontal: true, vertical: false) |
|
| 539 |
.confirmationDialog("Reset captured measurements?", isPresented: $showResetConfirmation, titleVisibility: .visible) {
|
|
| 540 |
Button("Reset series", role: .destructive) {
|
|
| 541 |
measurements.resetSeries() |
|
| 542 |
} |
|
| 543 |
Button("Cancel", role: .cancel) {}
|
|
| 544 |
} |
|
| 545 |
} |
|
| 546 | ||
| 547 |
private func seriesToggleFont(condensedLayout: Bool) -> Font {
|
|
| 548 |
if isLargeDisplay {
|
|
| 549 |
return .body.weight(.semibold) |
|
| 550 |
} |
|
| 551 |
return (condensedLayout ? Font.callout : .body).weight(.semibold) |
|
| 552 |
} |
|
| 553 | ||
| 554 |
private func controlChipFont(condensedLayout: Bool) -> Font {
|
|
| 555 |
if isLargeDisplay {
|
|
| 556 |
return .callout.weight(.semibold) |
|
| 557 |
} |
|
| 558 |
return (condensedLayout ? Font.callout : .footnote).weight(.semibold) |
|
| 559 |
} |
|
| 560 | ||
| 561 |
@ViewBuilder |
|
| 562 |
private func primaryAxisView( |
|
| 563 |
height: CGFloat, |
|
| 564 |
powerSeries: SeriesData, |
|
| 565 |
voltageSeries: SeriesData, |
|
| 566 |
currentSeries: SeriesData |
|
| 567 |
) -> some View {
|
|
| 568 |
if displayPower {
|
|
| 569 |
yAxisLabelsView( |
|
| 570 |
height: height, |
|
| 571 |
context: powerSeries.context, |
|
| 572 |
seriesKind: .power, |
|
| 573 |
measurementUnit: powerSeries.kind.unit, |
|
| 574 |
tint: powerSeries.kind.tint |
|
| 575 |
) |
|
| 576 |
} else if displayVoltage {
|
|
| 577 |
yAxisLabelsView( |
|
| 578 |
height: height, |
|
| 579 |
context: voltageSeries.context, |
|
| 580 |
seriesKind: .voltage, |
|
| 581 |
measurementUnit: voltageSeries.kind.unit, |
|
| 582 |
tint: voltageSeries.kind.tint |
|
| 583 |
) |
|
| 584 |
} else if displayCurrent {
|
|
| 585 |
yAxisLabelsView( |
|
| 586 |
height: height, |
|
| 587 |
context: currentSeries.context, |
|
| 588 |
seriesKind: .current, |
|
| 589 |
measurementUnit: currentSeries.kind.unit, |
|
| 590 |
tint: currentSeries.kind.tint |
|
| 591 |
) |
|
| 592 |
} |
|
| 593 |
} |
|
| 594 | ||
| 595 |
@ViewBuilder |
|
| 596 |
private func renderedChart( |
|
| 597 |
powerSeries: SeriesData, |
|
| 598 |
voltageSeries: SeriesData, |
|
| 599 |
currentSeries: SeriesData |
|
| 600 |
) -> some View {
|
|
| 601 |
if self.displayPower {
|
|
| 602 |
Chart(points: powerSeries.points, context: powerSeries.context, strokeColor: .red) |
|
| 603 |
.opacity(0.72) |
|
| 604 |
} else {
|
|
| 605 |
if self.displayVoltage {
|
|
| 606 |
Chart(points: voltageSeries.points, context: voltageSeries.context, strokeColor: .green) |
|
| 607 |
.opacity(0.78) |
|
| 608 |
} |
|
| 609 |
if self.displayCurrent {
|
|
| 610 |
Chart(points: currentSeries.points, context: currentSeries.context, strokeColor: .blue) |
|
| 611 |
.opacity(0.78) |
|
| 612 |
} |
|
| 613 |
} |
|
| 614 |
} |
|
| 615 | ||
| 616 |
@ViewBuilder |
|
| 617 |
private func secondaryAxisView( |
|
| 618 |
height: CGFloat, |
|
| 619 |
powerSeries: SeriesData, |
|
| 620 |
voltageSeries: SeriesData, |
|
| 621 |
currentSeries: SeriesData |
|
| 622 |
) -> some View {
|
|
| 623 |
if displayVoltage && displayCurrent {
|
|
| 624 |
yAxisLabelsView( |
|
| 625 |
height: height, |
|
| 626 |
context: currentSeries.context, |
|
| 627 |
seriesKind: .current, |
|
| 628 |
measurementUnit: currentSeries.kind.unit, |
|
| 629 |
tint: currentSeries.kind.tint |
|
| 630 |
) |
|
| 631 |
} else {
|
|
| 632 |
primaryAxisView( |
|
| 633 |
height: height, |
|
| 634 |
powerSeries: powerSeries, |
|
| 635 |
voltageSeries: voltageSeries, |
|
| 636 |
currentSeries: currentSeries |
|
| 637 |
) |
|
| 638 |
} |
|
| 639 |
} |
|
| 640 | ||
| 641 |
private func displayedPrimarySeries( |
|
| 642 |
powerSeries: SeriesData, |
|
| 643 |
voltageSeries: SeriesData, |
|
| 644 |
currentSeries: SeriesData |
|
| 645 |
) -> SeriesData? {
|
|
| 646 |
if displayPower {
|
|
| 647 |
return powerSeries |
|
| 648 |
} |
|
| 649 |
if displayVoltage {
|
|
| 650 |
return voltageSeries |
|
| 651 |
} |
|
| 652 |
if displayCurrent {
|
|
| 653 |
return currentSeries |
|
| 654 |
} |
|
| 655 |
return nil |
|
| 656 |
} |
|
| 657 | ||
| 658 |
private func series( |
|
| 659 |
for measurement: Measurements.Measurement, |
|
| 660 |
kind: SeriesKind, |
|
| 661 |
minimumYSpan: Double |
|
| 662 |
) -> SeriesData {
|
|
| 663 |
let points = measurement.points.filter { point in
|
|
| 664 |
guard let timeRange else { return true }
|
|
| 665 |
return timeRange.contains(point.timestamp) |
|
| 666 |
} |
|
| 667 |
let samplePoints = points.filter { $0.isSample }
|
|
| 668 |
let context = ChartContext() |
|
| 669 | ||
| 670 |
let autoBounds = automaticYBounds( |
|
| 671 |
for: samplePoints, |
|
| 672 |
minimumYSpan: minimumYSpan |
|
| 673 |
) |
|
| 674 |
let xBounds = xBounds(for: samplePoints) |
|
| 675 |
let lowerBound = resolvedLowerBound( |
|
| 676 |
for: kind, |
|
| 677 |
autoLowerBound: autoBounds.lowerBound |
|
| 678 |
) |
|
| 679 |
let upperBound = resolvedUpperBound( |
|
| 680 |
for: kind, |
|
| 681 |
lowerBound: lowerBound, |
|
| 682 |
autoUpperBound: autoBounds.upperBound, |
|
| 683 |
maximumSampleValue: samplePoints.map(\.value).max(), |
|
| 684 |
minimumYSpan: minimumYSpan |
|
| 685 |
) |
|
| 686 | ||
| 687 |
context.setBounds( |
|
| 688 |
xMin: CGFloat(xBounds.lowerBound.timeIntervalSince1970), |
|
| 689 |
xMax: CGFloat(xBounds.upperBound.timeIntervalSince1970), |
|
| 690 |
yMin: CGFloat(lowerBound), |
|
| 691 |
yMax: CGFloat(upperBound) |
|
| 692 |
) |
|
| 693 | ||
| 694 |
return SeriesData( |
|
| 695 |
kind: kind, |
|
| 696 |
points: points, |
|
| 697 |
samplePoints: samplePoints, |
|
| 698 |
context: context, |
|
| 699 |
autoLowerBound: autoBounds.lowerBound, |
|
| 700 |
autoUpperBound: autoBounds.upperBound, |
|
| 701 |
maximumSampleValue: samplePoints.map(\.value).max() |
|
| 702 |
) |
|
| 703 |
} |
|
| 704 | ||
| 705 |
private var supportsSharedOrigin: Bool {
|
|
| 706 |
displayVoltage && displayCurrent && !displayPower |
|
| 707 |
} |
|
| 708 | ||
| 709 |
private var minimumSharedScaleSpan: Double {
|
|
| 710 |
max(minimumVoltageSpan, minimumCurrentSpan) |
|
| 711 |
} |
|
| 712 | ||
| 713 |
private var pinnedOriginIsZero: Bool {
|
|
| 714 |
if useSharedOrigin && supportsSharedOrigin {
|
|
| 715 |
return pinOrigin && sharedAxisOrigin == 0 |
|
| 716 |
} |
|
| 717 | ||
| 718 |
if displayPower {
|
|
| 719 |
return pinOrigin && powerAxisOrigin == 0 |
|
| 720 |
} |
|
| 721 | ||
| 722 |
let visibleOrigins = [ |
|
| 723 |
displayVoltage ? voltageAxisOrigin : nil, |
|
| 724 |
displayCurrent ? currentAxisOrigin : nil |
|
| 725 |
] |
|
| 726 |
.compactMap { $0 }
|
|
| 727 | ||
| 728 |
guard !visibleOrigins.isEmpty else { return false }
|
|
| 729 |
return pinOrigin && visibleOrigins.allSatisfy { $0 == 0 }
|
|
| 730 |
} |
|
| 731 | ||
| 732 |
private func toggleSharedOrigin( |
|
| 733 |
voltageSeries: SeriesData, |
|
| 734 |
currentSeries: SeriesData |
|
| 735 |
) {
|
|
| 736 |
guard supportsSharedOrigin else { return }
|
|
| 737 | ||
| 738 |
if useSharedOrigin {
|
|
| 739 |
useSharedOrigin = false |
|
| 740 |
return |
|
| 741 |
} |
|
| 742 | ||
| 743 |
captureCurrentOrigins( |
|
| 744 |
voltageSeries: voltageSeries, |
|
| 745 |
currentSeries: currentSeries |
|
| 746 |
) |
|
| 747 |
sharedAxisOrigin = min(voltageAxisOrigin, currentAxisOrigin) |
|
| 748 |
sharedAxisUpperBound = max(voltageSeries.autoUpperBound, currentSeries.autoUpperBound) |
|
| 749 |
ensureSharedScaleSpan() |
|
| 750 |
useSharedOrigin = true |
|
| 751 |
pinOrigin = true |
|
| 752 |
} |
|
| 753 | ||
| 754 |
private func togglePinnedOrigin( |
|
| 755 |
voltageSeries: SeriesData, |
|
| 756 |
currentSeries: SeriesData |
|
| 757 |
) {
|
|
| 758 |
if pinOrigin {
|
|
| 759 |
pinOrigin = false |
|
| 760 |
return |
|
| 761 |
} |
|
| 762 | ||
| 763 |
captureCurrentOrigins( |
|
| 764 |
voltageSeries: voltageSeries, |
|
| 765 |
currentSeries: currentSeries |
|
| 766 |
) |
|
| 767 |
pinOrigin = true |
|
| 768 |
} |
|
| 769 | ||
| 770 |
private func setVisibleOriginsToZero() {
|
|
| 771 |
if useSharedOrigin && supportsSharedOrigin {
|
|
| 772 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 773 |
sharedAxisOrigin = 0 |
|
| 774 |
sharedAxisUpperBound = currentSpan |
|
| 775 |
voltageAxisOrigin = 0 |
|
| 776 |
currentAxisOrigin = 0 |
|
| 777 |
ensureSharedScaleSpan() |
|
| 778 |
} else {
|
|
| 779 |
if displayPower {
|
|
| 780 |
powerAxisOrigin = 0 |
|
| 781 |
} |
|
| 782 |
if displayVoltage {
|
|
| 783 |
voltageAxisOrigin = 0 |
|
| 784 |
} |
|
| 785 |
if displayCurrent {
|
|
| 786 |
currentAxisOrigin = 0 |
|
| 787 |
} |
|
| 788 |
} |
|
| 789 | ||
| 790 |
pinOrigin = true |
|
| 791 |
} |
|
| 792 | ||
| 793 |
private func captureCurrentOrigins( |
|
| 794 |
voltageSeries: SeriesData, |
|
| 795 |
currentSeries: SeriesData |
|
| 796 |
) {
|
|
| 797 |
powerAxisOrigin = displayedLowerBoundForSeries(.power) |
|
| 798 |
voltageAxisOrigin = voltageSeries.autoLowerBound |
|
| 799 |
currentAxisOrigin = currentSeries.autoLowerBound |
|
| 800 |
sharedAxisOrigin = min(voltageAxisOrigin, currentAxisOrigin) |
|
| 801 |
sharedAxisUpperBound = max(voltageSeries.autoUpperBound, currentSeries.autoUpperBound) |
|
| 802 |
ensureSharedScaleSpan() |
|
| 803 |
} |
|
| 804 | ||
| 805 |
private func displayedLowerBoundForSeries(_ kind: SeriesKind) -> Double {
|
|
| 806 |
switch kind {
|
|
| 807 |
case .power: |
|
| 808 |
return pinOrigin ? powerAxisOrigin : automaticYBounds(for: filteredSamplePoints(measurements.power), minimumYSpan: minimumPowerSpan).lowerBound |
|
| 809 |
case .voltage: |
|
| 810 |
if pinOrigin && useSharedOrigin && supportsSharedOrigin {
|
|
| 811 |
return sharedAxisOrigin |
|
| 812 |
} |
|
| 813 |
return pinOrigin ? voltageAxisOrigin : automaticYBounds(for: filteredSamplePoints(measurements.voltage), minimumYSpan: minimumVoltageSpan).lowerBound |
|
| 814 |
case .current: |
|
| 815 |
if pinOrigin && useSharedOrigin && supportsSharedOrigin {
|
|
| 816 |
return sharedAxisOrigin |
|
| 817 |
} |
|
| 818 |
return pinOrigin ? currentAxisOrigin : automaticYBounds(for: filteredSamplePoints(measurements.current), minimumYSpan: minimumCurrentSpan).lowerBound |
|
| 819 |
} |
|
| 820 |
} |
|
| 821 | ||
| 822 |
private func filteredSamplePoints(_ measurement: Measurements.Measurement) -> [Measurements.Measurement.Point] {
|
|
| 823 |
measurement.points.filter { point in
|
|
| 824 |
point.isSample && (timeRange?.contains(point.timestamp) ?? true) |
|
| 825 |
} |
|
| 826 |
} |
|
| 827 | ||
| 828 |
private func xBounds( |
|
| 829 |
for samplePoints: [Measurements.Measurement.Point] |
|
| 830 |
) -> ClosedRange<Date> {
|
|
| 831 |
if let timeRange {
|
|
| 832 |
return timeRange |
|
| 833 |
} |
|
| 834 | ||
| 835 |
let upperBound = max(samplePoints.last?.timestamp ?? chartNow, chartNow) |
|
| 836 |
let lowerBound = samplePoints.first?.timestamp ?? upperBound.addingTimeInterval(-defaultEmptyChartTimeSpan) |
|
| 837 | ||
| 838 |
if upperBound.timeIntervalSince(lowerBound) >= minimumTimeSpan {
|
|
| 839 |
return lowerBound...upperBound |
|
| 840 |
} |
|
| 841 | ||
| 842 |
return upperBound.addingTimeInterval(-minimumTimeSpan)...upperBound |
|
| 843 |
} |
|
| 844 | ||
| 845 |
private func automaticYBounds( |
|
| 846 |
for samplePoints: [Measurements.Measurement.Point], |
|
| 847 |
minimumYSpan: Double |
|
| 848 |
) -> (lowerBound: Double, upperBound: Double) {
|
|
| 849 |
let negativeAllowance = max(0.05, minimumYSpan * 0.08) |
|
| 850 | ||
| 851 |
guard |
|
| 852 |
let minimumSampleValue = samplePoints.map(\.value).min(), |
|
| 853 |
let maximumSampleValue = samplePoints.map(\.value).max() |
|
| 854 |
else {
|
|
| 855 |
return (0, minimumYSpan) |
|
| 856 |
} |
|
| 857 | ||
| 858 |
var lowerBound = minimumSampleValue |
|
| 859 |
var upperBound = maximumSampleValue |
|
| 860 |
let currentSpan = upperBound - lowerBound |
|
| 861 | ||
| 862 |
if currentSpan < minimumYSpan {
|
|
| 863 |
let expansion = (minimumYSpan - currentSpan) / 2 |
|
| 864 |
lowerBound -= expansion |
|
| 865 |
upperBound += expansion |
|
| 866 |
} |
|
| 867 | ||
| 868 |
if minimumSampleValue >= 0, lowerBound < -negativeAllowance {
|
|
| 869 |
let shift = -negativeAllowance - lowerBound |
|
| 870 |
lowerBound += shift |
|
| 871 |
upperBound += shift |
|
| 872 |
} |
|
| 873 | ||
| 874 |
let snappedLowerBound = snappedOriginValue(lowerBound) |
|
| 875 |
let resolvedUpperBound = max(upperBound, snappedLowerBound + minimumYSpan) |
|
| 876 |
return (snappedLowerBound, resolvedUpperBound) |
|
| 877 |
} |
|
| 878 | ||
| 879 |
private func resolvedLowerBound( |
|
| 880 |
for kind: SeriesKind, |
|
| 881 |
autoLowerBound: Double |
|
| 882 |
) -> Double {
|
|
| 883 |
guard pinOrigin else { return autoLowerBound }
|
|
| 884 | ||
| 885 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 886 |
return sharedAxisOrigin |
|
| 887 |
} |
|
| 888 | ||
| 889 |
switch kind {
|
|
| 890 |
case .power: |
|
| 891 |
return powerAxisOrigin |
|
| 892 |
case .voltage: |
|
| 893 |
return voltageAxisOrigin |
|
| 894 |
case .current: |
|
| 895 |
return currentAxisOrigin |
|
| 896 |
} |
|
| 897 |
} |
|
| 898 | ||
| 899 |
private func resolvedUpperBound( |
|
| 900 |
for kind: SeriesKind, |
|
| 901 |
lowerBound: Double, |
|
| 902 |
autoUpperBound: Double, |
|
| 903 |
maximumSampleValue: Double?, |
|
| 904 |
minimumYSpan: Double |
|
| 905 |
) -> Double {
|
|
| 906 |
guard pinOrigin else {
|
|
| 907 |
return autoUpperBound |
|
| 908 |
} |
|
| 909 | ||
| 910 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 911 |
return max(sharedAxisUpperBound, sharedAxisOrigin + minimumSharedScaleSpan) |
|
| 912 |
} |
|
| 913 | ||
| 914 |
return max( |
|
| 915 |
maximumSampleValue ?? lowerBound, |
|
| 916 |
lowerBound + minimumYSpan, |
|
| 917 |
autoUpperBound |
|
| 918 |
) |
|
| 919 |
} |
|
| 920 | ||
| 921 |
private func applyOriginDelta(_ delta: Double, kind: SeriesKind) {
|
|
| 922 |
let baseline = displayedLowerBoundForSeries(kind) |
|
| 923 |
let proposedOrigin = snappedOriginValue(baseline + delta) |
|
| 924 | ||
| 925 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 926 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 927 |
sharedAxisOrigin = min(proposedOrigin, maximumVisibleSharedOrigin()) |
|
| 928 |
sharedAxisUpperBound = sharedAxisOrigin + currentSpan |
|
| 929 |
ensureSharedScaleSpan() |
|
| 930 |
} else {
|
|
| 931 |
switch kind {
|
|
| 932 |
case .power: |
|
| 933 |
powerAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .power)) |
|
| 934 |
case .voltage: |
|
| 935 |
voltageAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .voltage)) |
|
| 936 |
case .current: |
|
| 937 |
currentAxisOrigin = min(proposedOrigin, maximumVisibleOrigin(for: .current)) |
|
| 938 |
} |
|
| 939 |
} |
|
| 940 | ||
| 941 |
pinOrigin = true |
|
| 942 |
} |
|
| 943 | ||
| 944 |
private func clearOriginOffset(for kind: SeriesKind) {
|
|
| 945 |
if useSharedOrigin && supportsSharedOrigin && (kind == .voltage || kind == .current) {
|
|
| 946 |
let currentSpan = max(sharedAxisUpperBound - sharedAxisOrigin, minimumSharedScaleSpan) |
|
| 947 |
sharedAxisOrigin = 0 |
|
| 948 |
sharedAxisUpperBound = currentSpan |
|
| 949 |
ensureSharedScaleSpan() |
|
| 950 |
voltageAxisOrigin = 0 |
|
| 951 |
currentAxisOrigin = 0 |
|
| 952 |
} else {
|
|
| 953 |
switch kind {
|
|
| 954 |
case .power: |
|
| 955 |
powerAxisOrigin = 0 |
|
| 956 |
case .voltage: |
|
| 957 |
voltageAxisOrigin = 0 |
|
| 958 |
case .current: |
|
| 959 |
currentAxisOrigin = 0 |
|
| 960 |
} |
|
| 961 |
} |
|
| 962 | ||
| 963 |
pinOrigin = true |
|
| 964 |
} |
|
| 965 | ||
| 966 |
private func handleAxisTap(locationY: CGFloat, totalHeight: CGFloat, kind: SeriesKind) {
|
|
| 967 |
guard totalHeight > 1 else { return }
|
|
| 968 | ||
| 969 |
let normalized = max(0, min(1, locationY / totalHeight)) |
|
| 970 |
if normalized < (1.0 / 3.0) {
|
|
| 971 |
applyOriginDelta(-1, kind: kind) |
|
| 972 |
} else if normalized < (2.0 / 3.0) {
|
|
| 973 |
clearOriginOffset(for: kind) |
|
| 974 |
} else {
|
|
| 975 |
applyOriginDelta(1, kind: kind) |
|
| 976 |
} |
|
| 977 |
} |
|
| 978 | ||
| 979 |
private func maximumVisibleOrigin(for kind: SeriesKind) -> Double {
|
|
| 980 |
switch kind {
|
|
| 981 |
case .power: |
|
| 982 |
return snappedOriginValue(filteredSamplePoints(measurements.power).map(\.value).min() ?? 0) |
|
| 983 |
case .voltage: |
|
| 984 |
return snappedOriginValue(filteredSamplePoints(measurements.voltage).map(\.value).min() ?? 0) |
|
| 985 |
case .current: |
|
| 986 |
return snappedOriginValue(filteredSamplePoints(measurements.current).map(\.value).min() ?? 0) |
|
| 987 |
} |
|
| 988 |
} |
|
| 989 | ||
| 990 |
private func maximumVisibleSharedOrigin() -> Double {
|
|
| 991 |
min( |
|
| 992 |
maximumVisibleOrigin(for: .voltage), |
|
| 993 |
maximumVisibleOrigin(for: .current) |
|
| 994 |
) |
|
| 995 |
} |
|
| 996 | ||
| 997 |
private func ensureSharedScaleSpan() {
|
|
| 998 |
sharedAxisUpperBound = max(sharedAxisUpperBound, sharedAxisOrigin + minimumSharedScaleSpan) |
|
| 999 |
} |
|
| 1000 | ||
| 1001 |
private func snappedOriginValue(_ value: Double) -> Double {
|
|
| 1002 |
if value >= 0 {
|
|
| 1003 |
return value.rounded(.down) |
|
| 1004 |
} |
|
| 1005 | ||
| 1006 |
return value.rounded(.up) |
|
| 1007 |
} |
|
| 1008 | ||
| 1009 |
private func yGuidePosition( |
|
| 1010 |
for labelIndex: Int, |
|
| 1011 |
context: ChartContext, |
|
| 1012 |
height: CGFloat |
|
| 1013 |
) -> CGFloat {
|
|
| 1014 |
let value = context.yAxisLabel(for: labelIndex, of: yLabels) |
|
| 1015 |
let anchorPoint = CGPoint(x: context.origin.x, y: CGFloat(value)) |
|
| 1016 |
return context.placeInRect(point: anchorPoint).y * height |
|
| 1017 |
} |
|
| 1018 | ||
| 1019 |
private func xGuidePosition( |
|
| 1020 |
for labelIndex: Int, |
|
| 1021 |
context: ChartContext, |
|
| 1022 |
width: CGFloat |
|
| 1023 |
) -> CGFloat {
|
|
| 1024 |
let value = context.xAxisLabel(for: labelIndex, of: xLabels) |
|
| 1025 |
let anchorPoint = CGPoint(x: CGFloat(value), y: context.origin.y) |
|
| 1026 |
return context.placeInRect(point: anchorPoint).x * width |
|
| 1027 |
} |
|
| 1028 | ||
| 1029 |
// MARK: Cu iteratie nu functioneaza deoarece view-ul din bucla nu este reimprospatat la modificare obiectului observat |
|
| 1030 |
fileprivate func xAxisLabelsView( |
|
| 1031 |
context: ChartContext |
|
| 1032 |
) -> some View {
|
|
| 1033 |
var timeFormat: String? |
|
| 1034 |
switch context.size.width {
|
|
| 1035 |
case 0..<3600: timeFormat = "HH:mm:ss" |
|
| 1036 |
case 3600...86400: timeFormat = "HH:mm" |
|
| 1037 |
default: timeFormat = "E HH:mm" |
|
| 1038 |
} |
|
| 1039 |
let labels = (1...xLabels).map {
|
|
| 1040 |
Date(timeIntervalSince1970: context.xAxisLabel(for: $0, of: self.xLabels)).format(as: timeFormat!) |
|
| 1041 |
} |
|
| 1042 |
let axisLabelFont: Font = {
|
|
| 1043 |
if isIPhone && isPortraitLayout {
|
|
| 1044 |
return .caption2.weight(.semibold) |
|
| 1045 |
} |
|
| 1046 |
return (isLargeDisplay ? Font.callout : .caption).weight(.semibold) |
|
| 1047 |
}() |
|
| 1048 | ||
| 1049 |
return HStack(spacing: chartSectionSpacing) {
|
|
| 1050 |
Color.clear |
|
| 1051 |
.frame(width: axisColumnWidth) |
|
| 1052 | ||
| 1053 |
GeometryReader { geometry in
|
|
| 1054 |
let labelWidth = max( |
|
| 1055 |
geometry.size.width / CGFloat(max(xLabels - 1, 1)), |
|
| 1056 |
1 |
|
| 1057 |
) |
|
| 1058 | ||
| 1059 |
ZStack(alignment: .topLeading) {
|
|
| 1060 |
Path { path in
|
|
| 1061 |
for labelIndex in 1...self.xLabels {
|
|
| 1062 |
let x = xGuidePosition( |
|
| 1063 |
for: labelIndex, |
|
| 1064 |
context: context, |
|
| 1065 |
width: geometry.size.width |
|
| 1066 |
) |
|
| 1067 |
path.move(to: CGPoint(x: x, y: 0)) |
|
| 1068 |
path.addLine(to: CGPoint(x: x, y: 6)) |
|
| 1069 |
} |
|
| 1070 |
} |
|
| 1071 |
.stroke(Color.secondary.opacity(0.26), lineWidth: 0.75) |
|
| 1072 | ||
| 1073 |
ForEach(Array(labels.enumerated()), id: \.offset) { item in
|
|
| 1074 |
let labelIndex = item.offset + 1 |
|
| 1075 |
let centerX = xGuidePosition( |
|
| 1076 |
for: labelIndex, |
|
| 1077 |
context: context, |
|
| 1078 |
width: geometry.size.width |
|
| 1079 |
) |
|
| 1080 | ||
| 1081 |
Text(item.element) |
|
| 1082 |
.font(axisLabelFont) |
|
| 1083 |
.monospacedDigit() |
|
| 1084 |
.lineLimit(1) |
|
| 1085 |
.minimumScaleFactor(0.74) |
|
| 1086 |
.frame(width: labelWidth) |
|
| 1087 |
.position( |
|
| 1088 |
x: centerX, |
|
| 1089 |
y: geometry.size.height * 0.7 |
|
| 1090 |
) |
|
| 1091 |
} |
|
| 1092 |
} |
|
| 1093 |
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading) |
|
| 1094 |
} |
|
| 1095 | ||
| 1096 |
Color.clear |
|
| 1097 |
.frame(width: axisColumnWidth) |
|
| 1098 |
} |
|
| 1099 |
} |
|
| 1100 | ||
| 1101 |
private func yAxisLabelsView( |
|
| 1102 |
height: CGFloat, |
|
| 1103 |
context: ChartContext, |
|
| 1104 |
seriesKind: SeriesKind, |
|
| 1105 |
measurementUnit: String, |
|
| 1106 |
tint: Color |
|
| 1107 |
) -> some View {
|
|
| 1108 |
let yAxisFont: Font = {
|
|
| 1109 |
if isIPhone && isPortraitLayout {
|
|
| 1110 |
return .caption2.weight(.semibold) |
|
| 1111 |
} |
|
| 1112 |
return (isLargeDisplay ? Font.callout : .footnote).weight(.semibold) |
|
| 1113 |
}() |
|
| 1114 | ||
| 1115 |
let unitFont: Font = {
|
|
| 1116 |
if isIPhone && isPortraitLayout {
|
|
| 1117 |
return .caption2.weight(.bold) |
|
| 1118 |
} |
|
| 1119 |
return (isLargeDisplay ? Font.footnote : .caption2).weight(.bold) |
|
| 1120 |
}() |
|
| 1121 | ||
| 1122 |
return GeometryReader { geometry in
|
|
| 1123 |
let footerHeight: CGFloat = isLargeDisplay ? 30 : 24 |
|
| 1124 |
let topInset: CGFloat = isLargeDisplay ? 34 : 28 |
|
| 1125 |
let labelAreaHeight = max(geometry.size.height - footerHeight - topInset, 1) |
|
| 1126 | ||
| 1127 |
ZStack(alignment: .top) {
|
|
| 1128 |
ForEach(0..<yLabels, id: \.self) { row in
|
|
| 1129 |
let labelIndex = yLabels - row |
|
| 1130 | ||
| 1131 |
Text("\(context.yAxisLabel(for: labelIndex, of: yLabels).format(fractionDigits: 1))")
|
|
| 1132 |
.font(yAxisFont) |
|
| 1133 |
.monospacedDigit() |
|
| 1134 |
.lineLimit(1) |
|
| 1135 |
.minimumScaleFactor(0.8) |
|
| 1136 |
.frame(width: max(geometry.size.width - 10, 0)) |
|
| 1137 |
.position( |
|
| 1138 |
x: geometry.size.width / 2, |
|
| 1139 |
y: topInset + yGuidePosition( |
|
| 1140 |
for: labelIndex, |
|
| 1141 |
context: context, |
|
| 1142 |
height: labelAreaHeight |
|
| 1143 |
) |
|
| 1144 |
) |
|
| 1145 |
} |
|
| 1146 | ||
| 1147 |
Text(measurementUnit) |
|
| 1148 |
.font(unitFont) |
|
| 1149 |
.foregroundColor(tint) |
|
| 1150 |
.padding(.horizontal, isLargeDisplay ? 8 : 6) |
|
| 1151 |
.padding(.vertical, isLargeDisplay ? 5 : 4) |
|
| 1152 |
.background( |
|
| 1153 |
Capsule(style: .continuous) |
|
| 1154 |
.fill(tint.opacity(0.14)) |
|
| 1155 |
) |
|
| 1156 |
.padding(.top, 8) |
|
| 1157 | ||
| 1158 |
} |
|
| 1159 |
} |
|
| 1160 |
.frame(height: height) |
|
| 1161 |
.background( |
|
| 1162 |
RoundedRectangle(cornerRadius: 16, style: .continuous) |
|
| 1163 |
.fill(tint.opacity(0.12)) |
|
| 1164 |
) |
|
| 1165 |
.overlay( |
|
| 1166 |
RoundedRectangle(cornerRadius: 16, style: .continuous) |
|
| 1167 |
.stroke(tint.opacity(0.20), lineWidth: 1) |
|
| 1168 |
) |
|
| 1169 |
.contentShape(RoundedRectangle(cornerRadius: 16, style: .continuous)) |
|
| 1170 |
.gesture( |
|
| 1171 |
DragGesture(minimumDistance: 0) |
|
| 1172 |
.onEnded { value in
|
|
| 1173 |
handleAxisTap(locationY: value.location.y, totalHeight: height, kind: seriesKind) |
|
| 1174 |
} |
|
| 1175 |
) |
|
| 1176 |
} |
|
| 1177 | ||
| 1178 |
fileprivate func horizontalGuides(context: ChartContext) -> some View {
|
|
| 1179 |
GeometryReader { geometry in
|
|
| 1180 |
Path { path in
|
|
| 1181 |
for labelIndex in 1...self.yLabels {
|
|
| 1182 |
let y = yGuidePosition( |
|
| 1183 |
for: labelIndex, |
|
| 1184 |
context: context, |
|
| 1185 |
height: geometry.size.height |
|
| 1186 |
) |
|
| 1187 |
path.addLine(from: CGPoint(x: 0, y: y), to: CGPoint(x: geometry.size.width, y: y)) |
|
| 1188 |
} |
|
| 1189 |
} |
|
| 1190 |
.stroke(Color.secondary.opacity(0.38), lineWidth: 0.85) |
|
| 1191 |
} |
|
| 1192 |
} |
|
| 1193 | ||
| 1194 |
fileprivate func verticalGuides(context: ChartContext) -> some View {
|
|
| 1195 |
GeometryReader { geometry in
|
|
| 1196 |
Path { path in
|
|
| 1197 | ||
| 1198 |
for labelIndex in 2..<self.xLabels {
|
|
| 1199 |
let x = xGuidePosition( |
|
| 1200 |
for: labelIndex, |
|
| 1201 |
context: context, |
|
| 1202 |
width: geometry.size.width |
|
| 1203 |
) |
|
| 1204 |
path.move(to: CGPoint(x: x, y: 0) ) |
|
| 1205 |
path.addLine(to: CGPoint(x: path.currentPoint!.x, y: geometry.size.height) ) |
|
| 1206 |
} |
|
| 1207 |
} |
|
| 1208 |
.stroke(Color.secondary.opacity(0.34), style: StrokeStyle(lineWidth: 0.8, dash: [4, 4])) |
|
| 1209 |
} |
|
| 1210 |
} |
|
| 1211 | ||
| 1212 |
fileprivate func discontinuityMarkers( |
|
| 1213 |
points: [Measurements.Measurement.Point], |
|
| 1214 |
context: ChartContext |
|
| 1215 |
) -> some View {
|
|
| 1216 |
GeometryReader { geometry in
|
|
| 1217 |
Path { path in
|
|
| 1218 |
for point in points where point.isDiscontinuity {
|
|
| 1219 |
let markerX = context.placeInRect( |
|
| 1220 |
point: CGPoint( |
|
| 1221 |
x: point.timestamp.timeIntervalSince1970, |
|
| 1222 |
y: context.origin.y |
|
| 1223 |
) |
|
| 1224 |
).x * geometry.size.width |
|
| 1225 |
path.move(to: CGPoint(x: markerX, y: 0)) |
|
| 1226 |
path.addLine(to: CGPoint(x: markerX, y: geometry.size.height)) |
|
| 1227 |
} |
|
| 1228 |
} |
|
| 1229 |
.stroke(Color.orange.opacity(0.75), style: StrokeStyle(lineWidth: 1, dash: [5, 4])) |
|
| 1230 |
} |
|
| 1231 |
} |
|
| 1232 | ||
| 1233 |
} |
|
| 1234 | ||
| 1235 |
struct Chart : View {
|
|
| 1236 | ||
| 1237 |
let points: [Measurements.Measurement.Point] |
|
| 1238 |
let context: ChartContext |
|
| 1239 |
var areaChart: Bool = false |
|
| 1240 |
var strokeColor: Color = .black |
|
| 1241 | ||
| 1242 |
var body : some View {
|
|
| 1243 |
GeometryReader { geometry in
|
|
| 1244 |
if self.areaChart {
|
|
| 1245 |
self.path( geometry: geometry ) |
|
| 1246 |
.fill(LinearGradient( gradient: .init(colors: [Color.red, Color.green]), startPoint: .init(x: 0.5, y: 0.1), endPoint: .init(x: 0.5, y: 0.9))) |
|
| 1247 |
} else {
|
|
| 1248 |
self.path( geometry: geometry ) |
|
| 1249 |
.stroke(self.strokeColor, style: StrokeStyle(lineWidth: 2, lineCap: .round, lineJoin: .round)) |
|
| 1250 |
} |
|
| 1251 |
} |
|
| 1252 |
} |
|
| 1253 | ||
| 1254 |
fileprivate func path(geometry: GeometryProxy) -> Path {
|
|
| 1255 |
return Path { path in
|
|
| 1256 |
var firstSample: Measurements.Measurement.Point? |
|
| 1257 |
var lastSample: Measurements.Measurement.Point? |
|
| 1258 |
var needsMove = true |
|
| 1259 | ||
| 1260 |
for point in points {
|
|
| 1261 |
if point.isDiscontinuity {
|
|
| 1262 |
needsMove = true |
|
| 1263 |
continue |
|
| 1264 |
} |
|
| 1265 | ||
| 1266 |
let item = context.placeInRect(point: point.point()) |
|
| 1267 |
let renderedPoint = CGPoint( |
|
| 1268 |
x: item.x * geometry.size.width, |
|
| 1269 |
y: item.y * geometry.size.height |
|
| 1270 |
) |
|
| 1271 | ||
| 1272 |
if firstSample == nil {
|
|
| 1273 |
firstSample = point |
|
| 1274 |
} |
|
| 1275 |
lastSample = point |
|
| 1276 | ||
| 1277 |
if needsMove {
|
|
| 1278 |
path.move(to: renderedPoint) |
|
| 1279 |
needsMove = false |
|
| 1280 |
} else {
|
|
| 1281 |
path.addLine(to: renderedPoint) |
|
| 1282 |
} |
|
| 1283 |
} |
|
| 1284 | ||
| 1285 |
if self.areaChart, let firstSample, let lastSample {
|
|
| 1286 |
let lastPointX = context.placeInRect(point: CGPoint(x: lastSample.point().x, y: context.origin.y )) |
|
| 1287 |
let firstPointX = context.placeInRect(point: CGPoint(x: firstSample.point().x, y: context.origin.y )) |
|
| 1288 |
path.addLine(to: CGPoint(x: lastPointX.x * geometry.size.width, y: lastPointX.y * geometry.size.height ) ) |
|
| 1289 |
path.addLine(to: CGPoint(x: firstPointX.x * geometry.size.width, y: firstPointX.y * geometry.size.height ) ) |
|
| 1290 |
// MARK: Nu e nevoie. Fill inchide automat calea |
|
| 1291 |
// path.closeSubpath() |
|
| 1292 |
} |
|
| 1293 |
} |
|
| 1294 |
} |
|
| 1295 | ||
| 1296 |
} |