From 72ed6dec6e2eb62c064dc331c5427c477a6352da Mon Sep 17 00:00:00 2001
From: "Veronica K. B. Olsen" <1619840+vkbo@users.noreply.github.com>
Date: Sun, 31 May 2020 14:40:10 +0200
Subject: [PATCH] Fixed a bug caused by a hardcoded project tree index (just
 added a column)

---
 nw/guimain.py | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/nw/guimain.py b/nw/guimain.py
index 67bb9fe0..cad673de 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -1019,14 +1019,15 @@ class GuiMain(QMainWindow):
         return
 
     def _treeDoubleClick(self, tItem, colNo):
-        tHandle = tItem.text(3)
+        tHandle = tItem.text(self.treeView.C_HANDLE)
         logger.verbose("User double clicked tree item with handle %s" % tHandle)
         nwItem = self.theProject.projTree[tHandle]
-        if nwItem.itemType == nwItemType.FILE:
-            logger.verbose("Requested item %s is a file" % tHandle)
-            self.openDocument(tHandle)
-        else:
-            logger.verbose("Requested item %s is a folder" % tHandle)
+        if nwItem is not None:
+            if nwItem.itemType == nwItemType.FILE:
+                logger.verbose("Requested item %s is a file" % tHandle)
+                self.openDocument(tHandle)
+            else:
+                logger.verbose("Requested item %s is a folder" % tHandle)
         return
 
     def _treeKeyPressReturn(self):