feat: add cropViewControllerDidImageTransformed (#222)

add a new function cropViewControllerDidImageTransformed to CropViewControllerDelegate
guoyingtao · Oct 31, 2022 · 8fee217 · 8fee217
1 parent 1a48c8c
commit 8fee217
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Showing 4 changed files with 17 additions and 7 deletions.
diff --git a/Example/ViewController.swift b/Example/ViewController.swift
@@ -35,7 +35,8 @@ class ViewController: UIViewController, CropViewControllerDelegate {
             return
         }
 
-        let config = Mantis.Config()
+        var config = Mantis.Config()
+        config.cropToolbarConfig.toolbarButtonOptions = [.clockwiseRotate, .reset, .ratio, .horizontallyFlip]
         let cropViewController = Mantis.cropViewController(image: image,
                                                            config: config)
         cropViewController.delegate = self
@@ -273,6 +274,10 @@ class ViewController: UIViewController, CropViewControllerDelegate {
     func cropViewControllerDidCancel(_ cropViewController: CropViewController, original: UIImage) {
         dismiss(animated: true)
     }
+
+    func cropViewControllerDidImageTransformed(_ cropViewController: CropViewController) {
+        print("image is transformed.")
+    }
 }
 
 extension ViewController: ImagePickerDelegate {

diff --git a/Sources/Mantis/CropView/CropView.swift b/Sources/Mantis/CropView/CropView.swift
@@ -216,6 +216,7 @@ class CropView: UIView {
         scrollView.resetBy(rect: viewModel.cropBoxFrame)
 
         imageContainer.frame = CGRect(x: 0, y: 0, width: scrollView.contentSize.width, height: scrollView.contentSize.height)
+
         scrollView.contentOffset = CGPoint(x: (imageContainer.frame.width - scrollView.frame.width) / 2,
                                            y: (imageContainer.frame.height - scrollView.frame.height) / 2)
 
@@ -777,6 +778,8 @@ extension CropView {
 
         viewModel.reset(forceFixedRatio: forceFixedRatio)
         resetUIFrame()
+        viewModel.setInitialStatus()
+
         delegate?.cropViewDidBecomeUnResettable(self)
         delegate?.cropViewDidEndResize(self)
     }
@@ -850,11 +853,13 @@ extension CropView {
     func horizontallyFlip() {
         viewModel.horizontallyFlip.toggle()
         flip(isHorizontal: true)
+        checkImageStatusChanged()
     }
 
     func verticallyFlip() {
         viewModel.verticallyFlip.toggle()
         flip(isHorizontal: false)
+        checkImageStatusChanged()
     }
 
     private func flip(isHorizontal: Bool = true, animated: Bool = true) {

diff --git a/Sources/Mantis/CropView/CropViewModel.swift b/Sources/Mantis/CropView/CropViewModel.swift
@@ -94,8 +94,6 @@ class CropViewModel: NSObject {
 
         cropLeftTopOnImage = .zero
         cropRightBottomOnImage = CGPoint(x: 1, y: 1)
-
-        setInitialStatus()
     }
 
     func rotateBy90(rotateAngle: CGFloat) {

diff --git a/Sources/Mantis/CropViewController/CropViewController.swift b/Sources/Mantis/CropViewController/CropViewController.swift
@@ -33,13 +33,15 @@ public protocol CropViewControllerDelegate: AnyObject {
     func cropViewControllerDidCancel(_ cropViewController: CropViewController, original: UIImage)
 
     func cropViewControllerDidBeginResize(_ cropViewController: CropViewController)
-    func cropViewControllerDidEndResize(_ cropViewController: CropViewController, original: UIImage, cropInfo: CropInfo)    
+    func cropViewControllerDidEndResize(_ cropViewController: CropViewController, original: UIImage, cropInfo: CropInfo)
+    func cropViewControllerDidImageTransformed(_ cropViewController: CropViewController)
 }
 
 public extension CropViewControllerDelegate where Self: UIViewController {
     func cropViewControllerDidFailToCrop(_ cropViewController: CropViewController, original: UIImage) {}
     func cropViewControllerDidBeginResize(_ cropViewController: CropViewController) {}
-    func cropViewControllerDidEndResize(_ cropViewController: CropViewController, original: UIImage, cropInfo: CropInfo) {}   
+    func cropViewControllerDidEndResize(_ cropViewController: CropViewController, original: UIImage, cropInfo: CropInfo) {}
+    func cropViewControllerDidImageTransformed(_ cropViewController: CropViewController) {}
 }
 
 public enum CropViewControllerMode {
@@ -513,10 +515,10 @@ extension CropViewController {
     }
 }
 
-extension CropViewController: CropViewDelegate {
-
+extension CropViewController: CropViewDelegate {    
     func cropViewDidBecomeResettable(_ cropView: CropView) {
         cropToolbar.handleCropViewDidBecomeResettable()
+        delegate?.cropViewControllerDidImageTransformed(self)
     }
 
     func cropViewDidBecomeUnResettable(_ cropView: CropView) {