Get bounds

Example/SnowflakeDemo/SnowflakeDemo/Sources/ViewController.swift

@@ -68,6 +68,8 @@ class ViewController: UIViewController {
 
     let svgView = document.svg.view
     self.view.addSubview(svgView)
+
+    print(document.svg.bounds())
   }
 
   override func viewDidLayoutSubviews() {

Sources/iOS/Document/SVG.swift

@@ -29,3 +29,22 @@ public class SVG {
     return view
   }
 }
+
+public extension SVG {
+
+  func bounds() -> CGRect {
+    var rect = CGRect.zero
+
+    items.forEach { item in
+      if let item = item as? ShapeAware {
+        rect = item.path.bounds.union(rect)
+      }
+    }
+
+    return rect
+  }
+
+  func layers(size: CGSize) -> [CALayer] {
+    return []
+  }
+}

Sources/iOS/Item/Shape/ShapeAware.swift

@@ -8,7 +8,10 @@ public protocol ShapeAware {
 
 public extension ShapeAware {
 
-  var layer: CALayer {
+  func layer(transform: CGAffineTransform) -> CAShapeLayer {
+    var path = self.path
+    path.apply(transform)
+
     let layer = CAShapeLayer()
     layer.path = path.cgPath