X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FAllColsCollection.java;fp=src%2Fjalview%2Fdatamodel%2FAllColsCollection.java;h=f3077fa5c6429bf781ef8c1476041116f238db9e;hb=a83adb45bdf9554e270921b4baad94defd314b36;hp=e216c46b8910abc6c1da375c9bc605b949b11f14;hpb=d4ec118f86b5c9dee801e743c46aaacc7bb521d1;p=jalview.git

diff --git a/src/jalview/datamodel/AllColsCollection.java b/src/jalview/datamodel/AllColsCollection.java
index e216c46..f3077fa 100644
--- a/src/jalview/datamodel/AllColsCollection.java
+++ b/src/jalview/datamodel/AllColsCollection.java
@@ -22,6 +22,7 @@ package jalview.datamodel;
 
 import jalview.api.AlignmentColsCollectionI;
 
+import java.util.BitSet;
 import java.util.Iterator;
 
 public class AllColsCollection implements AlignmentColsCollectionI
@@ -56,4 +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;
+  }
 }