JAL-845 linked protein/dna 'slave' further PoC functionality

[jalview.git] / src / jalview / commands / EditCommand.java

diff --git a/src/jalview/commands/EditCommand.java b/src/jalview/commands/EditCommand.java
index ba01b1c..38a45ce 100644 (file)
--- a/src/jalview/commands/EditCommand.java
+++ b/src/jalview/commands/EditCommand.java
@@ -63,7 +63,55 @@ public class EditCommand implements CommandI
 {
   public enum Action
   {
-    INSERT_GAP, DELETE_GAP, CUT, PASTE, REPLACE, INSERT_NUC
+    INSERT_GAP()
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return DELETE_GAP;
+      }
+    },
+    DELETE_GAP()
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return INSERT_GAP;
+      }
+    },
+    CUT()
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return PASTE;
+      }
+    },
+    PASTE()
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return CUT;
+      }
+    },
+    REPLACE
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return REPLACE;
+      }
+    },
+    INSERT_NUC
+    {
+      @Override
+      public Action getUndoAction()
+      {
+        return null;
+      }
+    };
+    public abstract Action getUndoAction();
   };
 
   private List<Edit> edits = new ArrayList<Edit>();
@@ -551,7 +599,7 @@ public class EditCommand implements CommandI
       if (command.seqs[i].getLength() < 1)
       {
         // ie this sequence was deleted, we need to
-        // read it to the alignment
+        // readd it to the alignment
         if (command.alIndex[i] < command.al.getHeight())
         {
           List<SequenceI> sequences;
@@ -1227,7 +1275,9 @@ public class EditCommand implements CommandI
           }
           else
           {
-            throw new IllegalStateException("Can't undo edit action " + action);
+            System.err.println("Can't undo edit action " + action);
+            // throw new IllegalStateException("Can't undo edit action " +
+            // action);
           }
         }
       }