From 52b8d8c9efd7650776d8fb044f0ff019ba9911ce Mon Sep 17 00:00:00 2001
From: Mike Burton <mb-github@niskala.org>
Date: Mon, 22 Jan 2024 18:37:57 -0800
Subject: [PATCH] Update GraphView.dart

Fix for index out of range when changing graph object between renders
---
 lib/GraphView.dart | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/GraphView.dart b/lib/GraphView.dart
index dea5abe..c56b3c8 100644
--- a/lib/GraphView.dart
+++ b/lib/GraphView.dart
@@ -239,14 +239,11 @@ class _GraphViewAnimated extends StatefulWidget {
   final Graph graph;
   final Algorithm algorithm;
   final Paint? paint;
-  final nodes = <Widget>[];
+  final NodeWidgetBuilder builder;
   final stepMilis = 25;
 
   _GraphViewAnimated(
-      {Key? key, required this.graph, required this.algorithm, this.paint, required NodeWidgetBuilder builder}) {
-    graph.nodes.forEach((node) {
-      nodes.add(node.data ?? builder(node));
-    });
+      {Key? key, required this.graph, required this.algorithm, this.paint, required this.builder}) {
   }
 
   @override
@@ -296,7 +293,7 @@ class _GraphViewAnimatedState extends State<_GraphViewAnimated> {
         ...List<Widget>.generate(graph.nodeCount(), (index) {
           return Positioned(
             child: GestureDetector(
-              child: widget.nodes[index],
+              child: graph.nodes[index].data ?? widget.builder(graph.nodes[index]),
               onPanUpdate: (details) {
                 graph.getNodeAtPosition(index).position += details.delta;
                 update();