X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fjalview%2Fgui%2FRedundancyPanel.java;h=0e55cf89f733d8dc081b57a6ad261a9a3e97208a;hb=9d139ca8d1af8f0f2d78193d418ae9e9168a3e8a;hp=1fcd87593e9088f14df8c87224739ca76af9c5ab;hpb=10b903bf6b22d53e8920091efb2145d6b6a677ba;p=jalview.git

diff --git a/src/jalview/gui/RedundancyPanel.java b/src/jalview/gui/RedundancyPanel.java
index 1fcd875..0e55cf8 100755
--- a/src/jalview/gui/RedundancyPanel.java
+++ b/src/jalview/gui/RedundancyPanel.java
@@ -245,8 +245,7 @@ public class RedundancyPanel extends GSliderPanel implements Runnable
       ap.alignFrame.addHistoryItem(cut);
 
       PaintRefresher.Refresh(this, ap.av.getSequenceSetId(), true, true);
-      // ap.av.firePropertyChange("alignment", null, ap.av.getAlignment()
-      // .getSequences());
+       ap.av.firePropertyChange("alignment", null, ap.av.getAlignment().getSequences());
     }
 
   }
@@ -259,12 +258,17 @@ public class RedundancyPanel extends GSliderPanel implements Runnable
    */
   public void undoButton_actionPerformed(ActionEvent e)
   {
+    if(historyList == null || historyList.isEmpty()){
+        undoButton.setEnabled(false);
+    	return;
+    }
+    
     CommandI command = (CommandI) historyList.pop();
-    command.undoCommand(af.getViewAlignments());
-
     if (ap.av.historyList.contains(command))
     {
+      command.undoCommand(af.getViewAlignments());
       ap.av.historyList.remove(command);
+      ap.av.firePropertyChange("alignment", null, ap.av.getAlignment().getSequences());
       af.updateEditMenuBar();
     }