X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FAnnotationLabels.java;h=b28ccc7f9afd45b61b509f3db213e1bd038df2ed;hb=e60cacff9260c47c12cf34a7e191678cfc97d265;hp=487d1308872b97aca11fd30cb50b64ce39f883b1;hpb=3705d44c1e45abab9180067ed1e2862b9dea65d1;p=jalview.git

diff --git a/src/jalview/appletgui/AnnotationLabels.java b/src/jalview/appletgui/AnnotationLabels.java
index 487d130..b28ccc7 100755
--- a/src/jalview/appletgui/AnnotationLabels.java
+++ b/src/jalview/appletgui/AnnotationLabels.java
@@ -712,11 +712,47 @@ public class AnnotationLabels extends Panel implements ActionListener,
             // todo: make the ap scroll to the selection - not necessary, first
             // click highlights/scrolls, second selects
             ap.seqPanel.ap.idPanel.highlightSearchResults(null);
-            ap.av.setSelectionGroup(// new SequenceGroup(
-            aa[selectedRow].groupRef); // );
-            ap.av.sendSelection();
+            // process modifiers
+            SequenceGroup sg = ap.av.getSelectionGroup();
+            if (sg == null
+                    || sg == aa[selectedRow].groupRef
+                    || !(jalview.util.Platform.isControlDown(evt) || evt
+                            .isShiftDown()))
+            {
+              if (jalview.util.Platform.isControlDown(evt)
+                      || evt.isShiftDown())
+              {
+                // clone a new selection group from the associated group
+                ap.av.setSelectionGroup(new SequenceGroup(
+                        aa[selectedRow].groupRef));
+              }
+              else
+              {
+                // set selection to the associated group so it can be edited
+                ap.av.setSelectionGroup(aa[selectedRow].groupRef);
+              }
+            }
+            else
+            {
+              // modify current selection with associated group
+              int remainToAdd = aa[selectedRow].groupRef.getSize();
+              for (SequenceI sgs : aa[selectedRow].groupRef.getSequences())
+              {
+                if (jalview.util.Platform.isControlDown(evt))
+                {
+                  sg.addOrRemove(sgs, --remainToAdd == 0);
+                }
+                else
+                {
+                  // notionally, we should also add intermediate sequences from
+                  // last added sequence ?
+                  sg.addSequence(sgs, --remainToAdd == 0);
+                }
+              }
+            }
             ap.paintAlignment(false);
             PaintRefresher.Refresh(ap, ap.av.getSequenceSetId());
+            ap.av.sendSelection();
           }
           else
           {