From c41b43ea0667569b9c31da914b8537d5c28d2bbc Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Thu, 23 Apr 2020 03:09:38 +1000
Subject: [PATCH] nodeview: don't try to delete nodes marked as undeletable

---
 app/widget/nodeview/nodeview.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/app/widget/nodeview/nodeview.cpp b/app/widget/nodeview/nodeview.cpp
index e61255ed2..5483d50cf 100644
--- a/app/widget/nodeview/nodeview.cpp
+++ b/app/widget/nodeview/nodeview.cpp
@@ -95,6 +95,14 @@ void NodeView::DeleteSelected()
 
   QList<Node*> selected_nodes = scene_.GetSelectedNodes();
 
+  // Ensure no nodes are "undeletable"
+  for (int i=0;i<selected_nodes.size();i++) {
+    if (!selected_nodes.at(i)->CanBeDeleted()) {
+      selected_nodes.removeAt(i);
+      i--;
+    }
+  }
+
   if (selected_nodes.isEmpty()) {
     return;
   }