From 338ef3cd3cebee1450f1cdc998f608680b3c5f25 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <MathStuf@gmail.com>
Date: Sat, 2 May 2009 03:29:59 -0400
Subject: The root's parent is invalid

---
 sigmodr/tree/TreeModel.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sigmodr/tree/TreeModel.cpp')

diff --git a/sigmodr/tree/TreeModel.cpp b/sigmodr/tree/TreeModel.cpp
index a3b2f243..8331d7a2 100644
--- a/sigmodr/tree/TreeModel.cpp
+++ b/sigmodr/tree/TreeModel.cpp
@@ -52,6 +52,8 @@ QModelIndex TreeModel::parent(const QModelIndex& child) const
     if (!child.isValid())
         return QModelIndex();
     TreeItem* item = static_cast<TreeItem*>(child.internalPointer());
+    if (!item->parent())
+        return QModelIndex();
     return createIndex(item->row(), 0, item->parent());
 }
 
-- 
cgit