X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fanalysis%2FAnnotationSorter.java;h=1f2e78f9ad01b30c7d5e8057aaafba3d093cc890;hb=80b889f0cca49103e1b20ed806755a0719789906;hp=92ed9bec374645afb0f6099c73e4688e7f6f852a;hpb=57738a1f3c19b1c3a00bd3ac5108f8cd0af32f99;p=jalview.git

diff --git a/src/jalview/analysis/AnnotationSorter.java b/src/jalview/analysis/AnnotationSorter.java
index 92ed9be..1f2e78f 100644
--- a/src/jalview/analysis/AnnotationSorter.java
+++ b/src/jalview/analysis/AnnotationSorter.java
@@ -156,8 +156,16 @@ public class AnnotationSorter
       {
         return showAutocalcAbove ? 1 : -1;
       }
-      int sequenceOrder = compareSequences(o1, o2);
-      return sequenceOrder == 0 ? compareLabels(o1, o2) : sequenceOrder;
+      int computedOrder = compareSequences(o1, o2);
+      if (computedOrder == 0)
+      {
+        computedOrder = compareLabels(o1, o2);
+      }
+      if (computedOrder == 0)
+      {
+        computedOrder = compareDescriptions(o1, o2);
+      }
+      return computedOrder;
     }
 
     @Override
@@ -358,6 +366,31 @@ public class AnnotationSorter
     }
     String label1 = o1.label;
     String label2 = o2.label;
+    return compareString(label1, label2);
+  }
+
+  /**
+   * Non-case-sensitive comparison of annotation descriptions. Returns zero if
+   * either argument is null.
+   * 
+   * @param o1
+   * @param o2
+   * @return
+   */
+  private int compareDescriptions(AlignmentAnnotation o1,
+          AlignmentAnnotation o2)
+  {
+    if (o1 == null || o2 == null)
+    {
+      return 0;
+    }
+    String label1 = o1.description;
+    String label2 = o2.description;
+    return compareString(label1, label2);
+  }
+
+  private int compareString(String label1, String label2)
+  {
     if (label1 == null && label2 == null)
     {
       return 0;