Move compound-ios package into the project.

compound-ios/Sources/Compound/Layout/ScaledFrameModifier.swift

@@ -0,0 +1,56 @@
+//
+// Copyright 2023, 2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+// Please see LICENSE files in the repository root for full details.
+//
+
+import SwiftUI
+
+public extension View {
+    /// Positions this view within an invisible frame with a square size that scales relative to the user's selected font size.
+    func scaledFrame(size: CGFloat, alignment: Alignment = .center, relativeTo textStyle: Font.TextStyle = .body) -> some View {
+        scaledFrame(width: size, height: size, alignment: alignment, relativeTo: textStyle)
+    }
+    
+    /// Positions this view within an invisible frame with a size that scales relative to the user's selected font size.
+    func scaledFrame(width: CGFloat, height: CGFloat, alignment: Alignment = .center, relativeTo textStyle: Font.TextStyle = .body) -> some View {
+        modifier(ScaledFrameModifier(width: width, height: height, alignment: alignment, relativeTo: textStyle))
+    }
+}
+
+private struct ScaledFrameModifier: ViewModifier {
+    @ScaledMetric var width: CGFloat
+    @ScaledMetric var height: CGFloat
+    let alignment: Alignment
+    
+    init(width: CGFloat, height: CGFloat, alignment: Alignment, relativeTo textStyle: Font.TextStyle) {
+        _width = ScaledMetric(wrappedValue: width, relativeTo: textStyle)
+        _height = ScaledMetric(wrappedValue: height, relativeTo: textStyle)
+        self.alignment = alignment
+    }
+    
+    func body(content: Content) -> some View {
+        content.frame(width: width, height: height, alignment: alignment)
+    }
+}
+
+// MARK: - Previews
+
+struct ScaledFrameModifier_Previews: PreviewProvider, TestablePreview {
+    static var previews: some View {
+        VStack {
+            ForEach(DynamicTypeSize.allCases, id: \.self) { size in
+                likeButtonLabel
+                    .dynamicTypeSize(size)
+            }
+        }
+    }
+    
+    static var likeButtonLabel: some View {
+        Image(systemSymbol: .heartCircleFill)
+            .resizable()
+            .foregroundStyle(.compound.iconAccentTertiary)
+            .scaledFrame(size: 24, relativeTo: .title)
+    }
+}