From d43d46e84646d25a40e2df07c5839b60a3d4a42b Mon Sep 17 00:00:00 2001
From: zmtzawqlp <zmtzawqlp@live.com>
Date: Wed, 27 Nov 2024 23:48:35 +0800
Subject: [PATCH] Fix SetState will Reset ExtendedImage and clear the Crop
 State.

---
 CHANGELOG.md                                  |  1 +
 .../lib/pages/complex/image_editor_demo.dart  |  7 ++-
 lib/src/editor/editor.dart                    | 51 +++++++++++++++----
 3 files changed, 46 insertions(+), 13 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5563dbd..ea33be5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 9.0.8
 
 * Fix the issue with 90-degree judgment when rotate image.
+* Fix SetState will Reset ExtendedImage and clear the Crop State. (#712)
 
 ## 9.0.7
 
diff --git a/example/lib/pages/complex/image_editor_demo.dart b/example/lib/pages/complex/image_editor_demo.dart
index e850711..3f2b2c3 100644
--- a/example/lib/pages/complex/image_editor_demo.dart
+++ b/example/lib/pages/complex/image_editor_demo.dart
@@ -50,6 +50,9 @@ class _ImageEditorDemoState extends State<ImageEditorDemo> {
     AspectRatioItem(text: '9*16', value: CropAspectRatios.ratio9_16)
   ];
 
+  EdgeInsets cropRectPadding = const EdgeInsets.all(20.0);
+  double maxScale = 8.0;
+
   late ValueNotifier<AspectRatioItem> _aspectRatio;
 
   bool _cropping = false;
@@ -117,8 +120,8 @@ class _ImageEditorDemoState extends State<ImageEditorDemo> {
                 // extendedImageEditorKey: editorKey,
                 initEditorConfigHandler: (ExtendedImageState? state) {
                   return EditorConfig(
-                    maxScale: 8.0,
-                    cropRectPadding: const EdgeInsets.all(20.0),
+                    maxScale: maxScale,
+                    cropRectPadding: cropRectPadding,
                     hitTestSize: 20.0,
                     cropLayerPainter: _cropLayerPainter.value,
                     initCropRectType: InitCropRectType.imageRect,
diff --git a/lib/src/editor/editor.dart b/lib/src/editor/editor.dart
index 107d2f2..1578bba 100644
--- a/lib/src/editor/editor.dart
+++ b/lib/src/editor/editor.dart
@@ -104,7 +104,29 @@ class ExtendedImageEditorState extends State<ExtendedImageEditor>
     super.dispose();
   }
 
-  void _initGestureConfig() {
+  void _initGestureConfig([ExtendedImageEditor? oldWidget]) {
+    if (oldWidget != null &&
+        widget.extendedImageState.extendedImageInfo !=
+            oldWidget.extendedImageState.extendedImageInfo) {
+      // reset
+      _editActionDetails = null;
+    }
+
+    if (_editActionDetails == null) {
+      final int length = _history.length;
+      _history.clear();
+      if (length != _history.length) {
+        _safeUpdate(
+          () {
+            _editorConfig?.controller?._notifyListeners();
+          },
+        );
+      }
+    }
+
+    // check config
+    final EditorConfig? oldConfig = _editorConfig?.copyWith();
+
     _editorConfig = widget
             .extendedImageState.imageWidget.initEditorConfigHandler
             ?.call(widget.extendedImageState) ??
@@ -127,14 +149,21 @@ class ExtendedImageEditorState extends State<ExtendedImageEditor>
       _editActionDetails!.cropAspectRatio = _editorConfig!.cropAspectRatio;
     }
 
-    final int length = _history.length;
-    _history.clear();
-    if (length != _history.length) {
-      _safeUpdate(
-        () {
-          _editorConfig!.controller?._notifyListeners();
-        },
-      );
+    if (oldConfig != null &&
+        oldConfig.cropAspectRatio != config.cropAspectRatio) {
+      updateCropAspectRatio(config.cropAspectRatio);
+    }
+
+    if (_editActionDetails!.totalScale > config.maxScale) {
+      _editActionDetails!.totalScale = config.maxScale;
+      _editActionDetails!.getFinalDestinationRect();
+      _recalculateCropRect();
+    }
+
+    if (oldConfig != null &&
+        oldConfig.cropRectPadding != config.cropRectPadding) {
+      _editActionDetails!.cropRectPadding = config.cropRectPadding;
+      _recalculateCropRect();
     }
 
     // save after afterPaintImage
@@ -144,8 +173,8 @@ class ExtendedImageEditorState extends State<ExtendedImageEditor>
 
   @override
   void didUpdateWidget(ExtendedImageEditor oldWidget) {
-    _editActionDetails = null;
-    _initGestureConfig();
+    // _editActionDetails = null;
+    _initGestureConfig(oldWidget);
     super.didUpdateWidget(oldWidget);
   }