From 0100493fd2817e63bc182ad4d7834cbf8fb5e612 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Thu, 17 Aug 2006 13:41:37 +0000
Subject: [PATCH] If no annotation exists

---
 src/jalview/gui/AnnotationLabels.java |   26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/src/jalview/gui/AnnotationLabels.java b/src/jalview/gui/AnnotationLabels.java
index 0788864..ceb736d 100755
--- a/src/jalview/gui/AnnotationLabels.java
+++ b/src/jalview/gui/AnnotationLabels.java
@@ -113,20 +113,23 @@ public class AnnotationLabels extends JPanel implements MouseListener,
       int height = 0;
       AlignmentAnnotation[] aa = ap.av.alignment.getAlignmentAnnotation();
 
-      for (int i = 0; i < aa.length; i++)
+      if(aa!=null)
       {
-        if (!aa[i].visible)
+        for (int i = 0; i < aa.length; i++)
         {
-          continue;
-        }
+          if (!aa[i].visible)
+          {
+            continue;
+          }
 
-        height += aa[i].height;
+          height += aa[i].height;
 
-        if (y < height)
-        {
-          selectedRow = i;
+          if (y < height)
+          {
+            selectedRow = i;
 
-          break;
+            break;
+          }
         }
       }
     }
@@ -157,7 +160,8 @@ public class AnnotationLabels extends JPanel implements MouseListener,
 
             ap.av.alignment.addAnnotation(newAnnotation);
             ap.av.alignment.setAnnotationIndex(newAnnotation, 0);
-            dif = aa[aa.length - 1].height;
+            if (aa != null)
+              dif = aa[aa.length - 1].height;
         }
         else if (evt.getActionCommand().equals(HIDE))
         {
@@ -523,7 +527,7 @@ public class AnnotationLabels extends JPanel implements MouseListener,
         {
           g.drawImage(image, 2, 0 - scrollOffset, this);
         }
-        else if (dragEvent != null)
+        else if (dragEvent != null && aa!=null)
         {
           g.setColor(Color.lightGray);
           g.drawString(aa[selectedRow].label, dragEvent.getX(), dragEvent.getY() - scrollOffset);
-- 
1.7.10.2