Merge branch 'develop' into efficiency/JAL-2034_JAL-1421

[jalview.git] / src / jalview / appletgui / SeqPanel.java

diff --git a/src/jalview/appletgui/SeqPanel.java b/src/jalview/appletgui/SeqPanel.java
index 9ec1ce4..02172d6 100644 (file)
--- a/src/jalview/appletgui/SeqPanel.java
+++ b/src/jalview/appletgui/SeqPanel.java
@@ -1839,9 +1839,12 @@ public class SeqPanel extends Panel implements MouseMotionListener,
 
     // do we want to thread this ? (contention with seqsel and colsel locks, I
     // suspect)
-    // rules are: colsel is copied if there is a real intersection between
-    // sequence selection
-    boolean repaint = false, copycolsel = true;
+    /*
+     * only copy colsel if there is a real intersection between
+     * sequence selection and this panel's alignment
+     */
+    boolean repaint = false;
+    boolean copycolsel = false;
     if (av.getSelectionGroup() == null || !av.isSelectionGroupChanged(true))
     {
       SequenceGroup sgroup = null;
@@ -1858,11 +1861,9 @@ public class SeqPanel extends Panel implements MouseMotionListener,
         }
         sgroup = seqsel.intersect(av.getAlignment(),
                 (av.hasHiddenRows()) ? av.getHiddenRepSequences() : null);
-        if ((sgroup == null || sgroup.getSize() == 0)
-                && (colsel == null || colsel.isEmpty()))
+        if ((sgroup != null && sgroup.getSize() > 0))
         {
-          // don't copy columns if the region didn't intersect.
-          copycolsel = false;
+          copycolsel = true;
         }
       }
       if (sgroup != null && sgroup.getSize() > 0)