X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FAllColsCollection.java;h=f3077fa5c6429bf781ef8c1476041116f238db9e;hb=5e37267b48b75b90d264e7ab04ae1bc4a0155e3e;hp=0700ecddd11479b9f243ce512910951ad9a8eba1;hpb=3f03cc818538d68c829869c6341112c44cf648d9;p=jalview.git

diff --git a/src/jalview/datamodel/AllColsCollection.java b/src/jalview/datamodel/AllColsCollection.java
index 0700ecd..f3077fa 100644
--- a/src/jalview/datamodel/AllColsCollection.java
+++ b/src/jalview/datamodel/AllColsCollection.java
@@ -22,26 +22,28 @@ package jalview.datamodel;
 
 import jalview.api.AlignmentColsCollectionI;
 
+import java.util.BitSet;
 import java.util.Iterator;
 
 public class AllColsCollection implements AlignmentColsCollectionI
 {
   int start;
+
   int end;
 
   HiddenColumns hidden;
-  
+
   public AllColsCollection(int s, int e, AlignmentI al)
   {
     start = s;
     end = e;
     hidden = al.getHiddenColumns();
   }
-  
+
   @Override
   public Iterator<Integer> iterator()
   {
-    return new AllColsIterator(start,end,hidden);
+    return new AllColsIterator(start, end, hidden);
   }
 
   @Override
@@ -55,4 +57,26 @@ public class AllColsCollection implements AlignmentColsCollectionI
   {
     return hidden.hasHiddenColumns();
   }
+
+  private BitSet bsVisible;
+
+  @Override
+  public BitSet getHiddenBitSet()
+  {
+    return hidden.getBitset();
+  }
+
+  /**
+   * return ALL columns, not just the truly visible ones
+   */
+  @Override
+  public BitSet getOverviewBitSet()
+  {
+    if (bsVisible == null)
+    {
+      bsVisible = new BitSet(end + 1);
+      bsVisible.set(0, end + 1);
+    }
+    return bsVisible;
+  }
 }