X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;fp=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=457f2c58e9188f662ae1f3b9da97fa7f2d062b42;hb=fc2dbe249bddd693c94bfa88b3468abc41c6d80b;hp=19ebf45da75b631ddfae0a3851e77e1bdc1cd9ed;hpb=1f46c912a14d05f673e19b272fec4e6094874fa5;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 19ebf45..457f2c5 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -2782,5 +2782,31 @@ public abstract class AlignmentViewport implements AlignViewportI,
     }
   }
 
+  /**
+   * hold status of current selection group - defined on alignment or not.
+   */
+  private boolean selectionIsDefinedGroup = false;
 
+  @Override
+  public boolean isSelectionDefinedGroup()
+  {
+    if (selectionGroup == null)
+    {
+      return false;
+    }
+    if (isSelectionGroupChanged(true))
+    {
+      selectionIsDefinedGroup = false;
+      List<SequenceGroup> gps = alignment.getGroups();
+      if (gps == null || gps.size() == 0)
+      {
+        selectionIsDefinedGroup = false;
+      }
+      else
+      {
+        selectionIsDefinedGroup = gps.contains(selectionGroup);
+      }
+    }
+    return selectionIsDefinedGroup;
+  }
 }