Views for demos

Package.swift

@@ -5,11 +5,14 @@ import PackageDescription
 
 let package = Package(
     name: "AudioKitUI",
-    platforms: [.macOS(.v12), .iOS(.v14)],
+    platforms: [.macOS(.v12), .iOS(.v15)],
     products: [.library(name: "AudioKitUI", targets: ["AudioKitUI"])],
-    dependencies: [.package(url: "https://github.com/AudioKit/AudioKit.git", from: "5.3.0")],
+    dependencies: [
+        .package(url: "https://github.com/AudioKit/AudioKit.git", from: "5.3.0"),
+        .package(url: "https://github.com/AudioKit/Controls.git", from: "1.1.0"),
+    ],
     targets: [
-        .target(name: "AudioKitUI", dependencies: ["AudioKit"], resources: [.process("Resources")]),
+        .target(name: "AudioKitUI", dependencies: ["AudioKit", "Controls"], resources: [.process("Resources")]),
         .testTarget(name: "AudioKitUITests", dependencies: ["AudioKitUI"]),
     ]
 )

Sources/AudioKitUI/Controls/ADSRWidget.swift

@@ -0,0 +1,18 @@
+import AudioKit
+import AVFoundation
+import SwiftUI
+
+struct ADSRWidget: UIViewRepresentable {
+    typealias UIViewType = ADSRView
+    var callback: (AUValue, AUValue, AUValue, AUValue) -> Void
+
+    func makeUIView(context _: Context) -> ADSRView {
+        let view = ADSRView(callback: callback)
+        view.bgColor = .systemBackground
+        return view
+    }
+
+    func updateUIView(_: ADSRView, context _: Context) {
+        //
+    }
+}

Sources/AudioKitUI/Controls/ParameterEditor2.swift

@@ -0,0 +1,76 @@
+// Copyright AudioKit. All Rights Reserved. Revision History at http://github.com/AudioKit/AudioKitUI/
+
+import AudioKit
+import Controls
+import SwiftUI
+import CoreMIDI
+
+/// Hack to get SwiftUI to poll and refresh our UI.
+class Refresher: ObservableObject {
+    @Published var version = 0
+}
+
+public struct ParameterEditor2: View {
+    var param: NodeParameter
+    @StateObject var refresher = Refresher()
+
+    public init(param: NodeParameter) {
+        self.param = param
+    }
+
+    func floatToDoubleRange(_ floatRange: ClosedRange<Float>) -> ClosedRange<Double> {
+        Double(floatRange.lowerBound) ... Double(floatRange.upperBound)
+    }
+
+    func getBinding() -> Binding<Float> {
+        Binding(
+            get: { param.value },
+            set: { param.value = $0; refresher.version += 1}
+        )
+    }
+
+    func getIntBinding() -> Binding<Int> {
+        Binding(get: { Int(param.value) }, set: { param.value = AUValue($0); refresher.version += 1 })
+    }
+
+    func intValues() -> [Int] {
+        Array(Int(param.range.lowerBound) ... Int(param.range.upperBound))
+    }
+    var format: String {
+        if (param.range.upperBound - param.range.lowerBound) > 20 {
+            return "%0.0f"
+        } else {
+            return "%0.2f"
+        }
+    }
+
+    public var body: some View {
+        VStack(alignment: .center) {
+            Text(param.def.name).font(.title2)
+            Text("\(String(format: format, param.value))")
+
+            switch param.def.unit {
+            case .boolean:
+                Toggle(isOn: Binding(get: { param.value == 1.0 }, set: {
+                    param.value = $0 ? 1.0 : 0.0; refresher.version += 1
+                }), label: { Text(param.def.name) })
+            case .indexed:
+                if param.range.upperBound - param.range.lowerBound < 5 {
+                    Picker(param.def.name, selection: getIntBinding()) {
+                        ForEach(intValues(), id: \.self) { value in
+                            Text("\(value)").tag(value)
+                        }
+                    }
+                    .pickerStyle(.segmented)
+                } else {
+                    SmallKnob(value: getBinding(), range: param.range)
+                        .frame(maxHeight: 200)
+
+                }
+            default:
+                SmallKnob(value: getBinding(), range: param.range)
+                    .frame(maxHeight: 200)
+            }
+        }
+    }
+}