feat: add tapThrough property to allow tap passthrough

Author: AndersKlint

packages/flutter_box_transform/lib/src/transformable_box.dart

@@ -125,6 +125,10 @@ class TransformableBox extends StatefulWidget {
   /// all moving operations.
   final bool draggable;
 
+  /// Whether the box ignores tap events and allows them to pass through to widgets
+  /// behind it. Dragging and resizing interactions are still possible.
+  final bool tapThrough;
+
   /// Whether to allow flipping of the box while resizing. If this is set to
   /// true, the box will flip when the user drags the handles to opposite
   /// corners of the rect.
@@ -255,6 +259,7 @@ class TransformableBox extends StatefulWidget {
     // Additional controls.
     this.resizable = true,
     this.draggable = true,
+    this.tapThrough = false,
     this.allowFlippingWhileResizing = true,
 
     // Tap events
@@ -597,7 +602,7 @@ class _TransformableBoxState extends State<TransformableBox> {
       content = GestureDetector(
         behavior: HitTestBehavior.translucent,
         supportedDevices: widget.supportedDragDevices,
-        onTap: onTap,
+        onTap: widget.tapThrough ? null : onTap,
         onPanStart: onDragPanStart,
         onPanUpdate: onDragPanUpdate,
         onPanEnd: onDragPanEnd,