From 7e6e45dcc15971488bd17a35ddd947296e8ae651 Mon Sep 17 00:00:00 2001
From: tcarver <tjc>
Date: Thu, 25 Oct 2012 16:06:56 +0100
Subject: [PATCH] fix for tooltip text

---
 uk/ac/sanger/artemis/components/alignment/CoveragePanel.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/uk/ac/sanger/artemis/components/alignment/CoveragePanel.java b/uk/ac/sanger/artemis/components/alignment/CoveragePanel.java
index 0e0c3bb1c..19b5188d9 100644
--- a/uk/ac/sanger/artemis/components/alignment/CoveragePanel.java
+++ b/uk/ac/sanger/artemis/components/alignment/CoveragePanel.java
@@ -473,6 +473,8 @@ import net.sf.samtools.SAMRecord;
      */
     public String getToolTipText(int ypos)
     {
+      if(heatPlots == null)
+        return null;
       for(HeatMapLn h: heatPlots)
       {
         if(ypos > h.yTop && ypos < h.yBtm)
-- 
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