Initial commit

.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/
+DerivedData/
+.swiftpm/config/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

Example/Example.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

Example/Example/Assets.xcassets/AccentColor.colorset/Contents.json

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+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Example/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Example/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Example/Example/ContentView.swift

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+//
+//  ContentView.swift
+//  Example
+//
+//  Created by andooown on 2023/08/29.
+//
+
+import SwiftUI
+import ChartCore
+
+struct ContentView: View {
+    enum Destination: Hashable {
+        case simple
+        case lines
+        case fill
+        case interaction
+        case smooth
+        case animation
+        case demo
+    }
+
+    var body: some View {
+        NavigationStack {
+            List {
+                Section("Basic") {
+                    NavigationLink("Simple Chart", value: Destination.simple)
+                    NavigationLink("Lines", value: Destination.lines)
+                    NavigationLink("Fill", value: Destination.fill)
+                    NavigationLink("Interaction", value: Destination.interaction)
+                    NavigationLink("Smoothing", value: Destination.smooth)
+                    NavigationLink("Animation", value: Destination.animation)
+                }
+                Section("Advanced") {
+                    NavigationLink("Demo", value: Destination.demo)
+                }
+            }
+            .navigationTitle("Example")
+            .navigationDestination(for: Destination.self) {
+                switch $0 {
+                case .simple:
+                    SimpleChart()
+
+                case .lines:
+                    LinesChart()
+
+                case .fill:
+                    FillChart()
+
+                case .interaction:
+                    InteractionChart()
+
+                case .smooth:
+                    SmoothChart()
+
+                case .animation:
+                    AnimationChart()
+
+                case .demo:
+                    DemoChart()
+                }
+            }
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}

Example/Example/ExampleApp.swift

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+//
+//  ExampleApp.swift
+//  Example
+//
+//  Created by andooown on 2023/08/29.
+//
+
+import SwiftUI
+
+@main
+struct ExampleApp: App {
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+        }
+    }
+}

Example/Example/Examples/AnimationChart.swift

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+//
+//  AnimationChart.swift
+//  Example
+//
+//  Created by andooown on 2023/08/30.
+//
+
+import SwiftUI
+import ChartCore
+import LineChart
+
+struct AnimationChart: View {
+    @State
+    private var showsDetail = false
+    @State
+    private var showsPoints = true
+
+    var body: some View {
+        VStack(alignment: .leading) {
+            AnimatableChart(
+                entries: SampleData.entries,
+                showsPoints: showsPoints,
+                ratio: showsDetail ? 1 : 0
+            )
+
+            Divider()
+                .padding(.vertical)
+
+            Button("Toggle", action: {
+                withAnimation {
+                    showsDetail.toggle()
+                }
+            })
+            .frame(maxWidth: .infinity)
+
+            Toggle("Show Points:", isOn: $showsPoints)
+
+            Spacer()
+        }
+        .padding()
+        .navigationTitle("Animation")
+    }
+}
+
+private struct AnimatableChart: View, Animatable {
+    let entries: [OptionalEntry]
+    let showsPoints: Bool
+    var ratio: Double
+
+    var animatableData: Double {
+        get { ratio }
+        set { ratio = newValue }
+    }
+
+    var body: some View {
+        LineChart(entries) { context in
+            let mixed = mixedContext(context)
+
+            ZStack {
+                if ratio < 0.5 {
+                    SplineLine(context: mixed)
+                        .stroke(style: StrokeStyle(lineWidth: 1, lineCap: .round))
+                        .fill(Color.orange)
+                } else {
+                    LinearLine(context: mixed)
+                        .stroke(style: StrokeStyle(lineWidth: 1, lineCap: .round))
+                        .fill(Color.orange)
+                }
+
+                if showsPoints {
+                    Point(context: mixed, radius: 3)
+                        .fill(Color.orange)
+                }
+            }
+            .frame(height: 200)
+            .markAsChartContent()
+        }
+        .chartScale(y: 0.8)
+    }
+
+    func mixedContext(_ context: ChartContext) -> ChartContext {
+        context.transformEntries { entries in
+            let base = MovingAverageCalculator(range: 3)(entries)
+            let detail = entries
+
+            return MixedValueCalculator(ratio: ratio)(base, detail)
+        }
+    }
+}