Merge branch 'develop' into bug/JAL-1803_JAL-2157

[jalview.git] / src / jalview / viewmodel / AlignmentViewport.java

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index a954a83..97f2e1c 100644 (file)
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -2782,5 +2782,32 @@ 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 selectionGroup.getContext() == alignment
+            || selectionIsDefinedGroup;
+  }
 }