X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=8c34f31cdd5fe1d5e6f1ea71e4c8753df29a6b03;hb=12ae2bfcbee4c4508625c6731ba62e6c10f19b19;hp=36da772b567362a643d270d4c6964362227182e9;hpb=b81d4d7d46ea8b1c89df086fb847baab6b69d427;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 36da772..8c34f31 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -371,8 +371,8 @@ public abstract class AlignmentViewport implements AlignViewportI
     {
       return;
     }
-    if (!calculator
-            .startRegisteredWorkersOfClass(jalview.workers.ConservationThread.class))
+    if (calculator
+            .getRegisteredWorkersOfClass(jalview.workers.ConservationThread.class)==null)
     {
       calculator.registerWorker(new jalview.workers.ConservationThread(
               this, ap));
@@ -389,7 +389,7 @@ public abstract class AlignmentViewport implements AlignViewportI
     {
       return;
     }
-    if (!calculator.startRegisteredWorkersOfClass(ConsensusThread.class))
+    if (calculator.getRegisteredWorkersOfClass(ConsensusThread.class)==null)
     {
       calculator.registerWorker(new ConsensusThread(this, ap));
     }
@@ -409,8 +409,8 @@ public abstract class AlignmentViewport implements AlignViewportI
     {
       return;
     }
-    if (!calculator
-            .startRegisteredWorkersOfClass(StrucConsensusThread.class))
+    if (calculator
+            .getRegisteredWorkersOfClass(StrucConsensusThread.class)==null)
     {
       calculator.registerWorker(new StrucConsensusThread(this, ap));
     }
@@ -1303,8 +1303,8 @@ public abstract class AlignmentViewport implements AlignViewportI
       if (sg.cs != null)
       {
         sg.cs.alignmentChanged(sg, hiddenRepSequences);
-        sg.recalcConservation();
       }
+      sg.recalcConservation();
     }
   }