JAL-896 - patch to ensure arrows in different directions are visually

[jalview.git] / src / jalview / structure / StructureSelectionManager.java

diff --git a/src/jalview/structure/StructureSelectionManager.java b/src/jalview/structure/StructureSelectionManager.java
index 32241a5..880f72a 100644 (file)
--- a/src/jalview/structure/StructureSelectionManager.java
+++ b/src/jalview/structure/StructureSelectionManager.java
@@ -349,6 +349,11 @@ public class StructureSelectionManager
 
   public void mouseOverStructure(int pdbResNum, String chain, String pdbfile)
   {
+    if (listeners==null)
+    {
+      // old or prematurely sent event
+      return;
+    }
     boolean hasSequenceListeners = handlingVamsasMo || seqmappings != null;
     SearchResults results = null;
     SequenceI lastseq = null;
@@ -504,6 +509,9 @@ public class StructureSelectionManager
           ((VamsasListener) listeners.elementAt(i)).mouseOver(seq,
                   indexpos, source);
         }
+        else if(listeners.elementAt(i) instanceof SecondaryStructureListener){
+               ((SecondaryStructureListener) listeners.elementAt(i)).mouseOverSequence(seq,indexpos);
+        }
       }
     }
   }