fix: tvOS & watchOS

SwiftDraw.podspec.json

@@ -20,12 +20,20 @@
   },
   "source_files": "SwiftDraw/**/*.swift",
   "ios": {
-	  "exclude_files": "SwiftDraw/NSImage+Image.swift",
-	  "frameworks": ["UIKit", "Foundation"]
+    "exclude_files": "SwiftDraw/NSImage+Image.swift",
+    "frameworks": ["UIKit", "Foundation"]
   },
   "osx": {
-	  "exclude_files": "SwiftDraw/UIImage+Image.swift",
-	  "frameworks": ["AppKit", "Foundation"]
+    "exclude_files": "SwiftDraw/UIImage+Image.swift",
+    "frameworks": ["AppKit", "Foundation"]
+  },
+  "tvos": {
+    "exclude_files": "SwiftDraw/NSImage+Image.swift",
+    "frameworks": ["UIKit", "Foundation"]
+  },
+  "watchos": {
+    "exclude_files": "SwiftDraw/NSImage+Image.swift",
+    "frameworks": ["UIKit", "WatchKit", "Foundation"]
   },
   "swift_version": "5.0"
 }

SwiftDraw/Renderer.CoreGraphics.swift

@@ -32,10 +32,10 @@
 #if canImport(CoreGraphics)
 import Foundation
 import CoreText
-#if os(macOS)
-import AppKit
-#elseif os(iOS)
+#if canImport(UIKit)
 import UIKit
+#elseif canImport(AppKit)
+import AppKit
 #endif
 
 struct CGTypes: RendererTypes {
@@ -295,9 +295,9 @@ struct CGProvider: RendererTypeProvider {
 //TODO: replace with CG implementation
 private extension CGImage {
     static func from(data: Data) -> CGImage? {
-#if os(iOS)
+#if canImport(UIKit)
         return UIImage(data: data)?.cgImage
-#elseif os(macOS)
+#elseif canImport(AppKit)
         guard let image = NSImage(data: data) else { return nil }
         var rect = NSRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
         return image.cgImage(forProposedRect: &rect, context: nil, hints: nil)

SwiftDraw/UIImage+Image.swift

@@ -31,6 +31,9 @@
 
 #if canImport(UIKit)
 import UIKit
+#if canImport(WatchKit)
+import WatchKit
+#endif
 
 public extension UIImage {
 
@@ -72,6 +75,22 @@ public extension SVG {
         return rasterize(with: size)
     }
 
+#if os(watchOS)
+    func rasterize(with size: CGSize? = nil, scale: CGFloat = 0, insets: UIEdgeInsets = .zero) -> UIImage {
+        let insets = Insets(top: insets.top, left: insets.left, bottom: insets.bottom, right: insets.right)
+        let (bounds, pixelsWide, pixelsHigh) = makeBounds(size: size, scale: 1, insets: insets)
+
+        let actualScale = scale <= 0 ? WKInterfaceDevice.current().screenScale : scale
+        UIGraphicsBeginImageContextWithOptions(CGSize(width: pixelsWide, height: pixelsHigh), false, actualScale)
+        defer { UIGraphicsEndImageContext() }
+
+        if let context = UIGraphicsGetCurrentContext() {
+            context.draw(self, in: bounds)
+        }
+
+        return UIGraphicsGetImageFromCurrentImageContext() ?? UIImage()
+    }
+#else
     private func makeFormat() -> UIGraphicsImageRendererFormat {
         guard #available(iOS 12.0, *) else {
             let f = UIGraphicsImageRendererFormat.default()
@@ -87,13 +106,14 @@ public extension SVG {
         let insets = Insets(top: insets.top, left: insets.left, bottom: insets.bottom, right: insets.right)
         let (bounds, pixelsWide, pixelsHigh) = makeBounds(size: size, scale: 1, insets: insets)
         let f = makeFormat()
-        f.scale = scale
+        f.scale = scale <= 0 ? UIScreen.main.scale : scale
         f.opaque = false
         let r = UIGraphicsImageRenderer(size: CGSize(width: pixelsWide, height: pixelsHigh), format: f)
         return r.image{
             $0.cgContext.draw(self, in: bounds)
         }
     }
+#endif
 
     func pngData(size: CGSize? = nil, scale: CGFloat = 0, insets: UIEdgeInsets = .zero) throws -> Data {
         let image = rasterize(with: size, scale: scale, insets: insets)
@@ -125,8 +145,14 @@ extension SVG {
     }
 
     func makeBounds(size: CGSize?, scale: CGFloat, insets: Insets) -> (bounds: CGRect, pixelsWide: Int, pixelsHigh: Int) {
-        let scale = scale == 0 ? UIScreen.main.scale : scale
-        return Self.makeBounds(size: size, defaultSize: self.size, scale: scale, insets: insets)
+        let newScale: CGFloat = {
+#if os(watchOS)
+            return scale <= 0 ? WKInterfaceDevice.current().screenScale : scale
+#else
+            return scale <= 0 ? UIScreen.main.scale : scale
+#endif
+        }()
+        return Self.makeBounds(size: size, defaultSize: self.size, scale: newScale, insets: insets)
     }
 
     private struct Error: LocalizedError {

SwiftDraw/Utilities/TextOutputStream+StandardError.swift

@@ -47,7 +47,7 @@ struct StandardErrorStream: TextOutputStream {
     fileprivate static var shared = StandardErrorStream()
 
     func write(_ string: String) {
-        if #available(macOS 10.15.4, iOS 13.4, *) {
+        if #available(macOS 10.15.4, iOS 13.4, tvOS 13.4, watchOS 6.2, *) {
             try! FileHandle.standardError.write(contentsOf: string.data(using: .utf8)!)
         } else {
             FileHandle.standardError.write(string.data(using: .utf8)!)

SwiftDrawTests/Parser.XML.ImageTests.swift

@@ -39,9 +39,9 @@ import CoreGraphics
 
 extension CGImage {
   static func from(data: Data) -> CGImage? {
-    #if os(iOS)
+    #if canImport(UIKit)
     return UIImage(data: data)?.cgImage
-    #elseif os(macOS)
+    #elseif canImport(AppKit)
     guard let image = NSImage(data: data) else { return nil }
     var rect = NSRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
     return image.cgImage(forProposedRect: &rect, context: nil, hints: nil)