From ea23831c7810a7091d3f4284eb8a2c7104fc386e Mon Sep 17 00:00:00 2001
From: Gabriel Perez <gabriel@techandpeople.com>
Date: Fri, 8 Nov 2024 14:39:44 -0400
Subject: [PATCH] set property to enable or disable Gesture to resize crop area

---
 example/lib/crop_page.dart          |  1 +
 lib/src/widgets/crop/crop_grid.dart | 53 +++++++++++++++++++----------
 2 files changed, 36 insertions(+), 18 deletions(-)

diff --git a/example/lib/crop_page.dart b/example/lib/crop_page.dart
index 2a1466df..635d080b 100644
--- a/example/lib/crop_page.dart
+++ b/example/lib/crop_page.dart
@@ -36,6 +36,7 @@ class CropPage extends StatelessWidget {
               child: CropGridViewer.edit(
                 controller: controller,
                 rotateCropArea: false,
+                enableGestureResizeCrop: true,
                 margin: const EdgeInsets.symmetric(horizontal: 20),
               ),
             ),
diff --git a/lib/src/widgets/crop/crop_grid.dart b/lib/src/widgets/crop/crop_grid.dart
index c5fe916d..1b43d55a 100644
--- a/lib/src/widgets/crop/crop_grid.dart
+++ b/lib/src/widgets/crop/crop_grid.dart
@@ -27,6 +27,7 @@ class CropGridViewer extends StatefulWidget {
     required this.controller,
   })  : showGrid = false,
         rotateCropArea = true,
+        enableGestureResizeCrop = false,
         margin = EdgeInsets.zero;
 
   const CropGridViewer.edit({
@@ -34,6 +35,7 @@ class CropGridViewer extends StatefulWidget {
     required this.controller,
     this.margin = const EdgeInsets.symmetric(horizontal: 20),
     this.rotateCropArea = true,
+    this.enableGestureResizeCrop = true,
   }) : showGrid = true;
 
   /// The [controller] param is mandatory so every change in the controller settings will propagate in the crop view
@@ -54,6 +56,11 @@ class CropGridViewer extends StatefulWidget {
   /// Defaults to `true` (like iOS Photos app crop)
   final bool rotateCropArea;
 
+  /// The [enableGestureResizeCrop] parameters specifies if the crop area can be resized
+  ///
+  /// Defaults to `true`
+  final bool enableGestureResizeCrop;
+
   @override
   State<CropGridViewer> createState() => _CropGridViewerState();
 }
@@ -163,24 +170,26 @@ class _CropGridViewerState extends State<CropGridViewer> with CropPreviewMixin {
       _boundary = CropBoundaries.inside;
 
       // CORNERS
-      if (_expandedPosition(rect.value.topLeft).contains(pos)) {
-        _boundary = CropBoundaries.topLeft;
-      } else if (_expandedPosition(rect.value.topRight).contains(pos)) {
-        _boundary = CropBoundaries.topRight;
-      } else if (_expandedPosition(rect.value.bottomRight).contains(pos)) {
-        _boundary = CropBoundaries.bottomRight;
-      } else if (_expandedPosition(rect.value.bottomLeft).contains(pos)) {
-        _boundary = CropBoundaries.bottomLeft;
-      } else if (_controller.preferredCropAspectRatio == null) {
-        // CENTERS
-        if (_expandedPosition(rect.value.centerLeft).contains(pos)) {
-          _boundary = CropBoundaries.centerLeft;
-        } else if (_expandedPosition(rect.value.topCenter).contains(pos)) {
-          _boundary = CropBoundaries.topCenter;
-        } else if (_expandedPosition(rect.value.centerRight).contains(pos)) {
-          _boundary = CropBoundaries.centerRight;
-        } else if (_expandedPosition(rect.value.bottomCenter).contains(pos)) {
-          _boundary = CropBoundaries.bottomCenter;
+      if (widget.enableGestureResizeCrop) {
+        if (_expandedPosition(rect.value.topLeft).contains(pos)) {
+          _boundary = CropBoundaries.topLeft;
+        } else if (_expandedPosition(rect.value.topRight).contains(pos)) {
+          _boundary = CropBoundaries.topRight;
+        } else if (_expandedPosition(rect.value.bottomRight).contains(pos)) {
+          _boundary = CropBoundaries.bottomRight;
+        } else if (_expandedPosition(rect.value.bottomLeft).contains(pos)) {
+          _boundary = CropBoundaries.bottomLeft;
+        } else if (_controller.preferredCropAspectRatio == null) {
+          // CENTERS
+          if (_expandedPosition(rect.value.centerLeft).contains(pos)) {
+            _boundary = CropBoundaries.centerLeft;
+          } else if (_expandedPosition(rect.value.topCenter).contains(pos)) {
+            _boundary = CropBoundaries.topCenter;
+          } else if (_expandedPosition(rect.value.centerRight).contains(pos)) {
+            _boundary = CropBoundaries.centerRight;
+          } else if (_expandedPosition(rect.value.bottomCenter).contains(pos)) {
+            _boundary = CropBoundaries.bottomCenter;
+          }
         }
       }
       setState(() {}); // to update selected boundary color
@@ -203,18 +212,26 @@ class _CropGridViewerState extends State<CropGridViewer> with CropPreviewMixin {
         break;
       //CORNERS
       case CropBoundaries.topLeft:
+        if (!widget.enableGestureResizeCrop) break;
+
         final Offset pos = rect.value.topLeft + delta;
         _changeRect(left: pos.dx, top: pos.dy);
         break;
       case CropBoundaries.topRight:
+        if (!widget.enableGestureResizeCrop) break;
+
         final Offset pos = rect.value.topRight + delta;
         _changeRect(right: pos.dx, top: pos.dy);
         break;
       case CropBoundaries.bottomRight:
+        if (!widget.enableGestureResizeCrop) break;
+
         final Offset pos = rect.value.bottomRight + delta;
         _changeRect(right: pos.dx, bottom: pos.dy);
         break;
       case CropBoundaries.bottomLeft:
+        if (!widget.enableGestureResizeCrop) break;
+
         final Offset pos = rect.value.bottomLeft + delta;
         _changeRect(left: pos.dx, bottom: pos.dy);
         break;