Add initial crop rect param

Author: marshallino16

Demo-macOS/Demo-macOS/ContentView.swift

@@ -11,19 +11,19 @@ import ImageCropper
 struct ContentView: View {
 
   @State var ratio: CropperRatio = CropperRatio.r_1_1
+  @State var cropRect: CGRect? = nil
 
   var body: some View {
     VStack {
       Text("Image Cropper Demo")
 
       Spacer()
 
-      ImageCropperView(image:
-                        Image("stock"),
-                       ratio: ratio
-      )
+      ImageCropperView(image: Image("stock"),
+                       cropRect: cropRect,
+                       ratio: ratio)
       .onCropChanged { (newCrop) in
-        print(newCrop)
+        cropRect = newCrop
       }
 
 
@@ -34,18 +34,21 @@ struct ContentView: View {
 
         Button(action: {
           ratio = CropperRatio.r_1_1
+          cropRect = nil
         }) {
           Text("1:1")
         }
 
         Button(action: {
           ratio = CropperRatio.r_3_2
+          cropRect = nil
         }) {
           Text("3:2")
         }
 
         Button(action: {
           ratio = CropperRatio.r_4_3
+          cropRect = nil
         }) {
           Text("4:3")
         }

Sources/ImageCropper/CropperView.swift

@@ -103,16 +103,16 @@ final class CropperViewModel: ObservableObject {
   var onCropChanged : ((CGRect) -> Void)?
 
   init(parentProxy: GeometryProxy,
-       initialCropRect: CGRect? = nil,
+       cropRect: CGRect? = nil,
        ratio: CropperRatio,
        onCropChanged : ((CGRect) -> Void)? = nil) {
 
     self.onCropChanged = onCropChanged
     self.parentProxy = parentProxy
     self.ratio = ratio
 
-    if let initialCropRect = initialCropRect {
-      self.cropperRect = cropRectToCropView(with: initialCropRect)
+    if let cropRect = cropRect {
+      self.cropperRect = cropRectToCropView(with: cropRect)
     }
     else {
       initializeCropRect()
@@ -123,7 +123,10 @@ final class CropperViewModel: ObservableObject {
     cropperRect = createCropperFrame(for: parentProxy.size)
 
     // Save initial crop
-    onCropChanged?(cropViewToCropRect())
+    DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.5) {
+      self.onCropChanged?(self.cropViewToCropRect())
+    }
+    
   }
 
   fileprivate func cropViewToCropRect() -> CGRect {

Sources/ImageCropper/ImageCropperView.swift

@@ -8,16 +8,19 @@
 import SwiftUI
 
 public struct ImageCropperView: View {
-  
-  var ratio: CropperRatio
-  
+
   let image: Image
+  let ratio: CropperRatio
+  let cropRect: CGRect?
+  
   var onCropChanged : ((CGRect) -> Void)?
 
   public init(image: Image,
+              cropRect: CGRect? = nil,
               ratio: CropperRatio) {
     self.image = image
     self.ratio = ratio
+    self.cropRect = cropRect
   }
 
   public var body: some View {
@@ -27,7 +30,7 @@ public struct ImageCropperView: View {
       .overlay(
         GeometryReader { reader in
           CropperView(viewModel: CropperViewModel(parentProxy: reader,
-                                                  initialCropRect: nil,
+                                                  cropRect: cropRect,
                                                   ratio: ratio,
                                                   onCropChanged: onCropChanged))
         }