From a706a0f1f86af677c05c12713e791b78320003e6 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Wed, 11 Apr 2007 13:00:09 +0000
Subject: [PATCH] If hiddenColumns are null, then column is viisble

---
 src/jalview/datamodel/ColumnSelection.java |   14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/jalview/datamodel/ColumnSelection.java b/src/jalview/datamodel/ColumnSelection.java
index 46c4c87..4904495 100644
--- a/src/jalview/datamodel/ColumnSelection.java
+++ b/src/jalview/datamodel/ColumnSelection.java
@@ -727,14 +727,16 @@ public class ColumnSelection
 
   public boolean isVisible(int column)
   {
-    for (int i = 0; i < hiddenColumns.size(); i++)
-    {
-      int[] region = (int[]) hiddenColumns.elementAt(i);
-      if (column >= region[0] && column <= region[1])
+    if (hiddenColumns != null)
+      for (int i = 0; i < hiddenColumns.size(); i++)
       {
-        return false;
+        int[] region = (int[]) hiddenColumns.elementAt(i);
+        if (column >= region[0] && column <= region[1])
+        {
+          return false;
+        }
       }
-    }
+
     return true;
   }
 
-- 
1.7.10.2