X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FAnnotationLabels.java;h=b28ccc7f9afd45b61b509f3db213e1bd038df2ed;hb=e60cacff9260c47c12cf34a7e191678cfc97d265;hp=c9632028398029137ef667164fc5dcd4520159d3;hpb=0ff10fddf3364f8a3c657355cfb4bc45ab5485a8;p=jalview.git

diff --git a/src/jalview/appletgui/AnnotationLabels.java b/src/jalview/appletgui/AnnotationLabels.java
index c963202..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
           {
@@ -743,7 +779,8 @@ public class AnnotationLabels extends Panel implements ActionListener,
               // we make a copy rather than edit the current selection if no
               // modifiers pressed
               // see Enhancement JAL-1557
-              if (!(evt.isControlDown() || evt.isShiftDown()))
+              if (!(jalview.util.Platform.isControlDown(evt) || evt
+                      .isShiftDown()))
               {
                 sg = new SequenceGroup(sg);
                 sg.clear();
@@ -751,7 +788,7 @@ public class AnnotationLabels extends Panel implements ActionListener,
               }
               else
               {
-                if (evt.isControlDown())
+                if (jalview.util.Platform.isControlDown(evt))
                 {
                   sg.addOrRemove(aa[selectedRow].sequenceRef, true);
                 }