Merge remote-tracking branch
[jalview.git] / src / jalview / gui / Jalview2XML.java
old mode 100755 (executable)
new mode 100644 (file)
index 4f76445..80cff07
 /*
- * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
  * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 package jalview.gui;
 
-import java.io.*;
-import java.net.*;
-import java.util.*;
-import java.util.jar.*;
-
-import javax.swing.*;
-
-import org.exolab.castor.xml.*;
-
-import uk.ac.vamsas.objects.utils.MapList;
+import java.awt.Rectangle;
+import java.io.BufferedReader;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.lang.reflect.InvocationTargetException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Hashtable;
+import java.util.IdentityHashMap;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.StringTokenizer;
+import java.util.Vector;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+import java.util.jar.JarOutputStream;
+
+import javax.swing.JInternalFrame;
+import javax.swing.JOptionPane;
+import javax.swing.SwingUtilities;
+
+import org.exolab.castor.xml.Marshaller;
+import org.exolab.castor.xml.Unmarshaller;
+
+import jalview.api.structures.JalviewStructureDisplayI;
+import jalview.bin.Cache;
+import jalview.datamodel.AlignedCodonFrame;
 import jalview.datamodel.Alignment;
+import jalview.datamodel.AlignmentAnnotation;
 import jalview.datamodel.AlignmentI;
+import jalview.datamodel.PDBEntry;
 import jalview.datamodel.SequenceI;
-import jalview.schemabinding.version2.*;
-import jalview.schemes.*;
+import jalview.datamodel.StructureViewerModel;
+import jalview.datamodel.StructureViewerModel.StructureData;
+import jalview.gui.StructureViewer.ViewerType;
+import jalview.schemabinding.version2.AlcodMap;
+import jalview.schemabinding.version2.AlcodonFrame;
+import jalview.schemabinding.version2.Annotation;
+import jalview.schemabinding.version2.AnnotationColours;
+import jalview.schemabinding.version2.AnnotationElement;
+import jalview.schemabinding.version2.CalcIdParam;
+import jalview.schemabinding.version2.DBRef;
+import jalview.schemabinding.version2.Features;
+import jalview.schemabinding.version2.Group;
+import jalview.schemabinding.version2.HiddenColumns;
+import jalview.schemabinding.version2.JGroup;
+import jalview.schemabinding.version2.JSeq;
+import jalview.schemabinding.version2.JalviewModel;
+import jalview.schemabinding.version2.JalviewModelSequence;
+import jalview.schemabinding.version2.MapListFrom;
+import jalview.schemabinding.version2.MapListTo;
+import jalview.schemabinding.version2.Mapping;
+import jalview.schemabinding.version2.MappingChoice;
+import jalview.schemabinding.version2.OtherData;
+import jalview.schemabinding.version2.PdbentryItem;
+import jalview.schemabinding.version2.Pdbids;
+import jalview.schemabinding.version2.Property;
+import jalview.schemabinding.version2.Sequence;
+import jalview.schemabinding.version2.SequenceSet;
+import jalview.schemabinding.version2.SequenceSetProperties;
+import jalview.schemabinding.version2.Setting;
+import jalview.schemabinding.version2.StructureState;
+import jalview.schemabinding.version2.ThresholdLine;
+import jalview.schemabinding.version2.Tree;
+import jalview.schemabinding.version2.UserColours;
+import jalview.schemabinding.version2.Viewport;
+import jalview.schemes.AnnotationColourGradient;
+import jalview.schemes.ColourSchemeI;
+import jalview.schemes.ColourSchemeProperty;
+import jalview.schemes.GraduatedColor;
+import jalview.schemes.ResidueColourScheme;
+import jalview.schemes.ResidueProperties;
+import jalview.schemes.UserColourScheme;
 import jalview.structure.StructureSelectionManager;
+import jalview.structures.models.AAStructureBindingModel;
+import jalview.util.MessageManager;
+import jalview.util.Platform;
+import jalview.util.jarInputStreamProvider;
+import jalview.viewmodel.AlignmentViewport;
+import jalview.viewmodel.seqfeatures.FeatureRendererSettings;
+import jalview.viewmodel.seqfeatures.FeaturesDisplayed;
+import jalview.ws.jws2.Jws2Discoverer;
+import jalview.ws.jws2.dm.AAConSettings;
+import jalview.ws.jws2.jabaws2.Jws2Instance;
+import jalview.ws.params.ArgumentI;
+import jalview.ws.params.AutoCalcSetting;
+import jalview.ws.params.WsParamSetI;
 
 /**
- * Write out the current jalview desktop state
- * as a Jalview XML stream.
+ * Write out the current jalview desktop state as a Jalview XML stream.
+ * 
+ * Note: the vamsas objects referred to here are primitive versions of the
+ * VAMSAS project schema elements - they are not the same and most likely never
+ * will be :)
  * 
- * Note: the vamsas objects referred to here are primitive
- * versions of the VAMSAS project schema elements - they are
- * not the same and most likely never will be :)
- *
  * @author $author$
- * @version $Revision$
+ * @version $Revision: 1.134 $
  */
 public class Jalview2XML
 {
+  private static final String UTF_8 = "UTF-8";
+
+  /*
+   * SequenceI reference -> XML ID string in jalview XML. Populated as XML reps
+   * of sequence objects are created.
+   */
+  IdentityHashMap<SequenceI, String> seqsToIds = null;
 
-  Hashtable seqRefIds = null;
+  /**
+   * jalview XML Sequence ID to jalview sequence object reference (both dataset
+   * and alignment sequences. Populated as XML reps of sequence objects are
+   * created.)
+   */
+  Map<String, SequenceI> seqRefIds = null;
 
   Vector frefedSequence = null;
 
+  boolean raiseGUI = true; // whether errors are raised in dialog boxes or not
+
+  /*
+   * Map of reconstructed AlignFrame objects that appear to have come from
+   * SplitFrame objects (have a dna/protein complement view).
+   */
+  private Map<Viewport, AlignFrame> splitFrameCandidates = new HashMap<Viewport, AlignFrame>();
+
+  /**
+   * create/return unique hash string for sq
+   * 
+   * @param sq
+   * @return new or existing unique string for sq
+   */
+  String seqHash(SequenceI sq)
+  {
+    if (seqsToIds == null)
+    {
+      initSeqRefs();
+    }
+    if (seqsToIds.containsKey(sq))
+    {
+      return seqsToIds.get(sq);
+    }
+    else
+    {
+      // create sequential key
+      String key = "sq" + (seqsToIds.size() + 1);
+      key = makeHashCode(sq, key); // check we don't have an external reference
+      // for it already.
+      seqsToIds.put(sq, key);
+      return key;
+    }
+  }
+
+  void clearSeqRefs()
+  {
+    if (_cleartables)
+    {
+      if (seqRefIds != null)
+      {
+        seqRefIds.clear();
+      }
+      if (seqsToIds != null)
+      {
+        seqsToIds.clear();
+      }
+      // seqRefIds = null;
+      // seqsToIds = null;
+    }
+    else
+    {
+      // do nothing
+      warn("clearSeqRefs called when _cleartables was not set. Doing nothing.");
+      // seqRefIds = new Hashtable();
+      // seqsToIds = new IdentityHashMap();
+    }
+  }
+
+  void initSeqRefs()
+  {
+    if (seqsToIds == null)
+    {
+      seqsToIds = new IdentityHashMap<SequenceI, String>();
+    }
+    if (seqRefIds == null)
+    {
+      seqRefIds = new HashMap<String, SequenceI>();
+    }
+  }
+
+  public Jalview2XML()
+  {
+  }
+
+  public Jalview2XML(boolean raiseGUI)
+  {
+    this.raiseGUI = raiseGUI;
+  }
+
   public void resolveFrefedSequences()
   {
     if (frefedSequence.size() > 0)
@@ -68,7 +247,7 @@ public class Jalview2XML
           {
             if (ref[1] instanceof jalview.datamodel.Mapping)
             {
-              SequenceI seq = (SequenceI) seqRefIds.get(sref);
+              SequenceI seq = seqRefIds.get(sref);
               while (seq.getDatasetSequence() != null)
               {
                 seq = seq.getDatasetSequence();
@@ -77,20 +256,50 @@ public class Jalview2XML
             }
             else
             {
-              System.err
-                      .println("IMPLEMENTATION ERROR: Unimplemented forward sequence references for "
-                              + ref[1].getClass() + " type objects.");
+              if (ref[1] instanceof jalview.datamodel.AlignedCodonFrame)
+              {
+                SequenceI seq = seqRefIds.get(sref);
+                while (seq.getDatasetSequence() != null)
+                {
+                  seq = seq.getDatasetSequence();
+                }
+                if (ref[2] != null
+                        && ref[2] instanceof jalview.datamodel.Mapping)
+                {
+                  jalview.datamodel.Mapping mp = (jalview.datamodel.Mapping) ref[2];
+                  ((jalview.datamodel.AlignedCodonFrame) ref[1]).addMap(
+                          seq, mp.getTo(), mp.getMap());
+                }
+                else
+                {
+                  System.err
+                          .println("IMPLEMENTATION ERROR: Unimplemented forward sequence references for AlcodonFrames involving "
+                                  + ref[2].getClass() + " type objects.");
+                }
+              }
+              else
+              {
+                System.err
+                        .println("IMPLEMENTATION ERROR: Unimplemented forward sequence references for "
+                                + ref[1].getClass() + " type objects.");
+              }
             }
             frefedSequence.remove(r);
             rSize--;
           }
           else
           {
+            System.err
+                    .println("IMPLEMENTATION WARNING: Unresolved forward reference for hash string "
+                            + ref[0]
+                            + " with objecttype "
+                            + ref[1].getClass());
             r++;
           }
         }
         else
         {
+          // empty reference
           frefedSequence.remove(r);
           rSize--;
         }
@@ -99,147 +308,286 @@ public class Jalview2XML
   }
 
   /**
-   * This maintains a list of viewports, the key being the
-   * seqSetId. Important to set historyItem and redoList
-   * for multiple views
+   * This maintains a map of viewports, the key being the seqSetId. Important to
+   * set historyItem and redoList for multiple views
    */
-  Hashtable viewportsAdded;
+  Map<String, AlignViewport> viewportsAdded = new HashMap<String, AlignViewport>();
 
-  Hashtable annotationIds = new Hashtable();
+  Map<String, AlignmentAnnotation> annotationIds = new HashMap<String, AlignmentAnnotation>();
 
   String uniqueSetSuffix = "";
 
   /**
    * List of pdbfiles added to Jar
    */
-  Vector pdbfiles = null;
+  List<String> pdbfiles = null;
 
   // SAVES SEVERAL ALIGNMENT WINDOWS TO SAME JARFILE
-  public void SaveState(File statefile)
+  public void saveState(File statefile)
   {
-    JInternalFrame[] frames = Desktop.desktop.getAllFrames();
+    FileOutputStream fos = null;
+    try
+    {
+      fos = new FileOutputStream(statefile);
+      JarOutputStream jout = new JarOutputStream(fos);
+      saveState(jout);
+
+    } catch (Exception e)
+    {
+      // TODO: inform user of the problem - they need to know if their data was
+      // not saved !
+      if (errorMessage == null)
+      {
+        errorMessage = "Couldn't write Jalview Archive to output file '"
+                + statefile + "' - See console error log for details";
+      }
+      else
+      {
+        errorMessage += "(output file was '" + statefile + "')";
+      }
+      e.printStackTrace();
+    } finally
+    {
+      if (fos != null)
+      {
+        try
+        {
+          fos.close();
+        } catch (IOException e)
+        {
+          // ignore
+        }
+      }
+    }
+    reportErrors();
+  }
+
+  /**
+   * Writes a jalview project archive to the given Jar output stream.
+   * 
+   * @param jout
+   */
+  public void saveState(JarOutputStream jout)
+  {
+    AlignFrame[] frames = Desktop.getAlignFrames(); // Desktop.desktop.getAllFrames();
 
     if (frames == null)
     {
       return;
     }
 
+    Hashtable<String, AlignFrame> dsses = new Hashtable<String, AlignFrame>();
+
     try
     {
-      FileOutputStream fos = new FileOutputStream(statefile);
-      JarOutputStream jout = new JarOutputStream(fos);
 
-      //NOTE UTF-8 MUST BE USED FOR WRITING UNICODE CHARS
-      ////////////////////////////////////////////////////
-      PrintWriter out = new PrintWriter(new OutputStreamWriter(jout,
-              "UTF-8"));
+      // NOTE UTF-8 MUST BE USED FOR WRITING UNICODE CHARS
+      // //////////////////////////////////////////////////
 
-      Vector shortNames = new Vector();
+      List<String> shortNames = new ArrayList<String>();
 
-      //REVERSE ORDER
+      // REVERSE ORDER
       for (int i = frames.length - 1; i > -1; i--)
       {
-        if (frames[i] instanceof AlignFrame)
+        AlignFrame af = frames[i];
+        // skip ?
+        if (skipList != null
+                && skipList
+                        .containsKey(af.getViewport().getSequenceSetId()))
         {
-          AlignFrame af = (AlignFrame) frames[i];
-
-          String shortName = af.getTitle();
+          continue;
+        }
 
-          if (shortName.indexOf(File.separatorChar) > -1)
-          {
-            shortName = shortName.substring(shortName
-                    .lastIndexOf(File.separatorChar) + 1);
-          }
+        String shortName = makeFilename(af, shortNames);
 
-          int count = 1;
+        int ap, apSize = af.alignPanels.size();
 
-          while (shortNames.contains(shortName))
+        for (ap = 0; ap < apSize; ap++)
+        {
+          AlignmentPanel apanel = af.alignPanels.get(ap);
+          String fileName = apSize == 1 ? shortName : ap + shortName;
+          if (!fileName.endsWith(".xml"))
           {
-            if (shortName.endsWith("_" + (count - 1)))
-            {
-              shortName = shortName
-                      .substring(0, shortName.lastIndexOf("_"));
-            }
-
-            shortName = shortName.concat("_" + count);
-            count++;
+            fileName = fileName + ".xml";
           }
 
-          shortNames.addElement(shortName);
-
-          if (!shortName.endsWith(".xml"))
-          {
-            shortName = shortName + ".xml";
-          }
+          saveState(apanel, fileName, jout);
 
-          int ap, apSize = af.alignPanels.size();
-          for (ap = 0; ap < apSize; ap++)
+          String dssid = getDatasetIdRef(af.getViewport().getAlignment()
+                  .getDataset());
+          if (!dsses.containsKey(dssid))
           {
-            AlignmentPanel apanel = (AlignmentPanel) af.alignPanels
-                    .elementAt(ap);
-
-            SaveState(apanel, apSize == 1 ? shortName : ap + shortName,
-                    jout, out);
+            dsses.put(dssid, af);
           }
         }
       }
 
-      out.close();
+      writeDatasetFor(dsses, "" + jout.hashCode() + " " + uniqueSetSuffix,
+              jout);
+
+      try
+      {
+        jout.flush();
+      } catch (Exception foo)
+      {
+      }
+      ;
       jout.close();
     } catch (Exception ex)
     {
-      //TODO: inform user of the problem - they need to know if their data was not saved !
+      // TODO: inform user of the problem - they need to know if their data was
+      // not saved !
+      if (errorMessage == null)
+      {
+        errorMessage = "Couldn't write Jalview Archive - see error output for details";
+      }
       ex.printStackTrace();
     }
   }
 
+  /**
+   * Generates a distinct file name, based on the title of the AlignFrame, by
+   * appending _n for increasing n until an unused name is generated. The new
+   * name (without its extension) is added to the list.
+   * 
+   * @param af
+   * @param namesUsed
+   * @return the generated name, with .xml extension
+   */
+  protected String makeFilename(AlignFrame af, List<String> namesUsed)
+  {
+    String shortName = af.getTitle();
+
+    if (shortName.indexOf(File.separatorChar) > -1)
+    {
+      shortName = shortName.substring(shortName
+              .lastIndexOf(File.separatorChar) + 1);
+    }
+
+    int count = 1;
+
+    while (namesUsed.contains(shortName))
+    {
+      if (shortName.endsWith("_" + (count - 1)))
+      {
+        shortName = shortName.substring(0, shortName.lastIndexOf("_"));
+      }
+
+      shortName = shortName.concat("_" + count);
+      count++;
+    }
+
+    namesUsed.add(shortName);
+
+    if (!shortName.endsWith(".xml"))
+    {
+      shortName = shortName + ".xml";
+    }
+    return shortName;
+  }
+
   // USE THIS METHOD TO SAVE A SINGLE ALIGNMENT WINDOW
-  public boolean SaveAlignment(AlignFrame af, String jarFile,
+  public boolean saveAlignment(AlignFrame af, String jarFile,
           String fileName)
   {
     try
     {
-      int ap, apSize = af.alignPanels.size();
+      int ap = 0;
+      int apSize = af.alignPanels.size();
       FileOutputStream fos = new FileOutputStream(jarFile);
       JarOutputStream jout = new JarOutputStream(fos);
-      PrintWriter out = new PrintWriter(new OutputStreamWriter(jout,
-              "UTF-8"));
-      for (ap = 0; ap < apSize; ap++)
+      Hashtable<String, AlignFrame> dsses = new Hashtable<String, AlignFrame>();
+      for (AlignmentPanel apanel : af.alignPanels)
       {
-        AlignmentPanel apanel = (AlignmentPanel) af.alignPanels
-                .elementAt(ap);
-
-        SaveState(apanel, apSize == 1 ? fileName : fileName + ap, jout, out);
+        String jfileName = apSize == 1 ? fileName : fileName + ap;
+        ap++;
+        if (!jfileName.endsWith(".xml"))
+        {
+          jfileName = jfileName + ".xml";
+        }
+        saveState(apanel, jfileName, jout);
+        String dssid = getDatasetIdRef(af.getViewport().getAlignment()
+                .getDataset());
+        if (!dsses.containsKey(dssid))
+        {
+          dsses.put(dssid, af);
+        }
       }
-
-      out.close();
+      writeDatasetFor(dsses, fileName, jout);
+      try
+      {
+        jout.flush();
+      } catch (Exception foo)
+      {
+      }
+      ;
       jout.close();
       return true;
     } catch (Exception ex)
     {
+      errorMessage = "Couldn't Write alignment view to Jalview Archive - see error output for details";
       ex.printStackTrace();
       return false;
     }
   }
 
-  /**
-   * DOCUMENT ME!
-   *
-   * @param af DOCUMENT ME!
-   * @param timeStamp DOCUMENT ME!
-   * @param fileName DOCUMENT ME!
-   * @param jout DOCUMENT ME!
-   * @param out DOCUMENT ME!
-   */
-  public JalviewModel SaveState(AlignmentPanel ap, String fileName,
-          JarOutputStream jout, PrintWriter out)
+  private void writeDatasetFor(Hashtable<String, AlignFrame> dsses,
+          String fileName, JarOutputStream jout)
   {
-    if (seqRefIds == null)
+
+    for (String dssids : dsses.keySet())
     {
-      seqRefIds = new Hashtable();
+      AlignFrame _af = dsses.get(dssids);
+      String jfileName = fileName + " Dataset for " + _af.getTitle();
+      if (!jfileName.endsWith(".xml"))
+      {
+        jfileName = jfileName + ".xml";
+      }
+      saveState(_af.alignPanel, jfileName, true, jout);
     }
+  }
+
+  /**
+   * create a JalviewModel from an alignment view and marshall it to a
+   * JarOutputStream
+   * 
+   * @param ap
+   *          panel to create jalview model for
+   * @param fileName
+   *          name of alignment panel written to output stream
+   * @param jout
+   *          jar output stream
+   * @param out
+   *          jar entry name
+   */
+  public JalviewModel saveState(AlignmentPanel ap, String fileName,
+          JarOutputStream jout)
+  {
+    return saveState(ap, fileName, false, jout);
+  }
 
-    Vector userColours = new Vector();
+  /**
+   * create a JalviewModel from an alignment view and marshall it to a
+   * JarOutputStream
+   * 
+   * @param ap
+   *          panel to create jalview model for
+   * @param fileName
+   *          name of alignment panel written to output stream
+   * @param storeDS
+   *          when true, only write the dataset for the alignment, not the data
+   *          associated with the view.
+   * @param jout
+   *          jar output stream
+   * @param out
+   *          jar entry name
+   */
+  public JalviewModel saveState(AlignmentPanel ap, String fileName,
+          boolean storeDS, JarOutputStream jout)
+  {
+    initSeqRefs();
+    List<String> viewIds = new ArrayList<String>();
+    List<UserColourScheme> userColours = new ArrayList<UserColourScheme>();
 
     AlignViewport av = ap.av;
 
@@ -247,11 +595,12 @@ public class Jalview2XML
     object.setVamsasModel(new jalview.schemabinding.version2.VamsasModel());
 
     object.setCreationDate(new java.util.Date(System.currentTimeMillis()));
-    object.setVersion(jalview.bin.Cache.getProperty("VERSION"));
+    object.setVersion(jalview.bin.Cache.getDefault("VERSION",
+            "Development Build"));
 
-    jalview.datamodel.AlignmentI jal = av.alignment;
+    jalview.datamodel.AlignmentI jal = av.getAlignment();
 
-    if (av.hasHiddenRows)
+    if (av.hasHiddenRows())
     {
       jal = jal.getHiddenSequences().getFullAlignment();
     }
@@ -265,7 +614,12 @@ public class Jalview2XML
     if (jal.getDataset() != null)
     {
       // dataset id is the dataset's hashcode
-      vamsasSet.setDatasetId(jal.getDataset().hashCode() + "");
+      vamsasSet.setDatasetId(getDatasetIdRef(jal.getDataset()));
+      if (storeDS)
+      {
+        // switch jal and the dataset
+        jal = jal.getDataset();
+      }
     }
     if (jal.getProperties() != null)
     {
@@ -281,24 +635,39 @@ public class Jalview2XML
     }
 
     JSeq jseq;
+    Set<String> calcIdSet = new HashSet<String>();
 
-    //SAVE SEQUENCES
-    int id = 0;
-    jalview.datamodel.SequenceI jds;
+    // SAVE SEQUENCES
+    String id = "";
+    jalview.datamodel.SequenceI jds, jdatasq;
     for (int i = 0; i < jal.getHeight(); i++)
     {
       jds = jal.getSequenceAt(i);
-      id = jds.hashCode();
+      jdatasq = jds.getDatasetSequence() == null ? jds : jds
+              .getDatasetSequence();
+      id = seqHash(jds);
 
-      if (seqRefIds.get(id + "") != null)
+      if (seqRefIds.get(id) != null)
       {
-
+        // This happens for two reasons: 1. multiple views are being serialised.
+        // 2. the hashCode has collided with another sequence's code. This DOES
+        // HAPPEN! (PF00072.15.stk does this)
+        // JBPNote: Uncomment to debug writing out of files that do not read
+        // back in due to ArrayOutOfBoundExceptions.
+        // System.err.println("vamsasSeq backref: "+id+"");
+        // System.err.println(jds.getName()+"
+        // "+jds.getStart()+"-"+jds.getEnd()+" "+jds.getSequenceAsString());
+        // System.err.println("Hashcode: "+seqHash(jds));
+        // SequenceI rsq = (SequenceI) seqRefIds.get(id + "");
+        // System.err.println(rsq.getName()+"
+        // "+rsq.getStart()+"-"+rsq.getEnd()+" "+rsq.getSequenceAsString());
+        // System.err.println("Hashcode: "+seqHash(rsq));
       }
       else
       {
         vamsasSeq = createVamsasSequence(id, jds);
         vamsasSet.addSequence(vamsasSeq);
-        seqRefIds.put(id + "", jal.getSequenceAt(i));
+        seqRefIds.put(id, jds);
       }
 
       jseq = new JSeq();
@@ -306,31 +675,35 @@ public class Jalview2XML
       jseq.setEnd(jds.getEnd());
       jseq.setColour(av.getSequenceColour(jds).getRGB());
 
-      jseq.setId(id);
-
-      if (av.hasHiddenRows)
+      jseq.setId(id); // jseq id should be a string not a number
+      if (!storeDS)
       {
-        jseq.setHidden(av.alignment.getHiddenSequences().isHidden(jds));
-
-        if (av.hiddenRepSequences != null
-                && av.hiddenRepSequences.containsKey(jal.getSequenceAt(i)))
+        // Store any sequences this sequence represents
+        if (av.hasHiddenRows())
         {
-          jalview.datamodel.SequenceI[] reps = ((jalview.datamodel.SequenceGroup) av.hiddenRepSequences
-                  .get(jal.getSequenceAt(i))).getSequencesInOrder(jal);
+          jseq.setHidden(av.getAlignment().getHiddenSequences()
+                  .isHidden(jds));
 
-          for (int h = 0; h < reps.length; h++)
+          if (av.isHiddenRepSequence(jal.getSequenceAt(i)))
           {
-            if (reps[h] != jal.getSequenceAt(i))
+            jalview.datamodel.SequenceI[] reps = av
+                    .getRepresentedSequences(jal.getSequenceAt(i))
+                    .getSequencesInOrder(jal);
+
+            for (int h = 0; h < reps.length; h++)
             {
-              jseq.addHiddenSequences(jal.findIndex(reps[h]));
+              if (reps[h] != jal.getSequenceAt(i))
+              {
+                jseq.addHiddenSequences(jal.findIndex(reps[h]));
+              }
             }
           }
         }
       }
 
-      if (jds.getDatasetSequence().getSequenceFeatures() != null)
+      if (jds.getSequenceFeatures() != null)
       {
-        jalview.datamodel.SequenceFeature[] sf = jds.getDatasetSequence()
+        jalview.datamodel.SequenceFeature[] sf = jds
                 .getSequenceFeatures();
         int index = 0;
         while (index < sf.length)
@@ -372,86 +745,76 @@ public class Jalview2XML
         }
       }
 
-      if (jds.getDatasetSequence().getPDBId() != null)
+      if (jdatasq.getPDBId() != null)
       {
-        Enumeration en = jds.getDatasetSequence().getPDBId().elements();
+        Enumeration en = jdatasq.getPDBId().elements();
         while (en.hasMoreElements())
         {
           Pdbids pdb = new Pdbids();
           jalview.datamodel.PDBEntry entry = (jalview.datamodel.PDBEntry) en
                   .nextElement();
 
-          pdb.setId(entry.getId());
+          String pdbId = entry.getId();
+          pdb.setId(pdbId);
           pdb.setType(entry.getType());
 
-          AppJmol jmol;
-          //This must have been loaded, is it still visible?
+          /*
+           * Store any structure views associated with this sequence. This
+           * section copes with duplicate entries in the project, so a dataset
+           * only view *should* be coped with sensibly.
+           */
+          // This must have been loaded, is it still visible?
           JInternalFrame[] frames = Desktop.desktop.getAllFrames();
+          String matchedFile = null;
           for (int f = frames.length - 1; f > -1; f--)
           {
-            if (frames[f] instanceof AppJmol)
+            if (frames[f] instanceof StructureViewerBase)
             {
-              jmol = (AppJmol) frames[f];
-              if (!jmol.pdbentry.getId().equals(entry.getId()))
-                continue;
-
-              StructureState state = new StructureState();
-              state.setVisible(true);
-              state.setXpos(jmol.getX());
-              state.setYpos(jmol.getY());
-              state.setWidth(jmol.getWidth());
-              state.setHeight(jmol.getHeight());
-
-              String statestring = jmol.viewer.getStateInfo();
-              if (state != null)
-              {
-                state.setContent(statestring.replaceAll("\n", ""));
-              }
-              for (int s = 0; s < jmol.sequence.length; s++)
+              StructureViewerBase viewFrame = (StructureViewerBase) frames[f];
+              matchedFile = saveStructureState(ap, jds, pdb, entry,
+                      viewIds, matchedFile, viewFrame);
+              /*
+               * Only store each structure viewer's state once in each XML
+               * document. First time through only (storeDS==false)
+               */
+              String viewId = viewFrame.getViewId();
+              if (!storeDS && !viewIds.contains(viewId))
               {
-                if (jal.findIndex(jmol.sequence[s]) > -1)
+                viewIds.add(viewId);
+                try
+                {
+                  writeJarEntry(jout, getViewerJarEntryName(viewId),
+                          viewFrame.getStateInfo().getBytes());
+                } catch (IOException e)
                 {
-                  pdb.addStructureState(state);
+                  System.err.println("Error saving viewer state: "
+                          + e.getMessage());
                 }
               }
             }
           }
 
-          if (entry.getFile() != null)
+          if (matchedFile != null || entry.getFile() != null)
           {
-            pdb.setFile(entry.getFile());
+            if (entry.getFile() != null)
+            {
+              // use entry's file
+              matchedFile = entry.getFile();
+            }
+            pdb.setFile(matchedFile); // entry.getFile());
             if (pdbfiles == null)
             {
-              pdbfiles = new Vector();
+              pdbfiles = new ArrayList<String>();
             }
 
-            if (!pdbfiles.contains(entry.getId()))
+            if (!pdbfiles.contains(pdbId))
             {
-              pdbfiles.addElement(entry.getId());
-              try
-              {
-                File file = new File(entry.getFile());
-                if (file.exists() && jout != null)
-                {
-                  byte[] data = new byte[(int) file.length()];
-                  jout.putNextEntry(new JarEntry(entry.getId()));
-                  DataInputStream dis = new DataInputStream(
-                          new FileInputStream(file));
-                  dis.readFully(data);
-
-                  DataOutputStream dout = new DataOutputStream(jout);
-                  dout.write(data, 0, data.length);
-                  jout.closeEntry();
-                }
-              } catch (Exception ex)
-              {
-                ex.printStackTrace();
-              }
-
+              pdbfiles.add(pdbId);
+              copyFileToJar(jout, matchedFile, pdbId);
             }
           }
 
-          if (entry.getProperty() != null)
+          if (entry.getProperty() != null && !entry.getProperty().isEmpty())
           {
             PdbentryItem item = new PdbentryItem();
             Hashtable properties = entry.getProperty();
@@ -474,46 +837,69 @@ public class Jalview2XML
       jms.addJSeq(jseq);
     }
 
-    if (av.hasHiddenRows)
+    if (!storeDS && av.hasHiddenRows())
     {
-      jal = av.alignment;
+      jal = av.getAlignment();
     }
     // SAVE MAPPINGS
-    if (jal.getCodonFrames() != null && jal.getCodonFrames().length > 0)
+    if (jal.getCodonFrames() != null)
     {
-      jalview.datamodel.AlignedCodonFrame[] jac = jal.getCodonFrames();
-      for (int i = 0; i < jac.length; i++)
+      Set<AlignedCodonFrame> jac = jal.getCodonFrames();
+      for (AlignedCodonFrame acf : jac)
       {
         AlcodonFrame alc = new AlcodonFrame();
         vamsasSet.addAlcodonFrame(alc);
-        for (int p = 0; p < jac[i].aaWidth; p++)
+        if (acf.getProtMappings() != null
+                && acf.getProtMappings().length > 0)
         {
-          Alcodon cmap = new Alcodon();
-          cmap.setPos1(jac[i].codons[p][0]);
-          cmap.setPos2(jac[i].codons[p][1]);
-          cmap.setPos3(jac[i].codons[p][2]);
-          alc.addAlcodon(cmap);
-        }
-        if (jac[i].getProtMappings() != null
-                && jac[i].getProtMappings().length > 0)
-        {
-          SequenceI[] dnas = jac[i].getdnaSeqs();
-          jalview.datamodel.Mapping[] pmaps = jac[i].getProtMappings();
+          SequenceI[] dnas = acf.getdnaSeqs();
+          jalview.datamodel.Mapping[] pmaps = acf.getProtMappings();
           for (int m = 0; m < pmaps.length; m++)
           {
             AlcodMap alcmap = new AlcodMap();
-            alcmap.setDnasq("" + dnas[m].hashCode());
+            alcmap.setDnasq(seqHash(dnas[m]));
             alcmap.setMapping(createVamsasMapping(pmaps[m], dnas[m], null,
                     false));
             alc.addAlcodMap(alcmap);
           }
         }
+
+//      {
+//        AlcodonFrame alc = new AlcodonFrame();
+//        vamsasSet.addAlcodonFrame(alc);
+//        for (int p = 0; p < acf.aaWidth; p++)
+//        {
+//          Alcodon cmap = new Alcodon();
+//          if (acf.codons[p] != null)
+//          {
+//            // Null codons indicate a gapped column in the translated peptide
+//            // alignment.
+//            cmap.setPos1(acf.codons[p][0]);
+//            cmap.setPos2(acf.codons[p][1]);
+//            cmap.setPos3(acf.codons[p][2]);
+//          }
+//          alc.addAlcodon(cmap);
+//        }
+//        if (acf.getProtMappings() != null
+//                && acf.getProtMappings().length > 0)
+//        {
+//          SequenceI[] dnas = acf.getdnaSeqs();
+//          jalview.datamodel.Mapping[] pmaps = acf.getProtMappings();
+//          for (int m = 0; m < pmaps.length; m++)
+//          {
+//            AlcodMap alcmap = new AlcodMap();
+//            alcmap.setDnasq(seqHash(dnas[m]));
+//            alcmap.setMapping(createVamsasMapping(pmaps[m], dnas[m], null,
+//                    false));
+//            alc.addAlcodMap(alcmap);
+//          }
+//        }
       }
     }
 
-    //SAVE TREES
-    ///////////////////////////////////
-    if (av.currentTree != null)
+    // SAVE TREES
+    // /////////////////////////////////
+    if (!storeDS && av.currentTree != null)
     {
       // FIND ANY ASSOCIATED TREES
       // NOT IMPLEMENTED FOR HEADLESS STATE AT PRESENT
@@ -527,7 +913,7 @@ public class Jalview2XML
           {
             TreePanel tp = (TreePanel) frames[t];
 
-            if (tp.treeCanvas.av.alignment == jal)
+            if (tp.treeCanvas.av.getAlignment() == jal)
             {
               Tree tree = new Tree();
               tree.setTitle(tp.getTitle());
@@ -548,7 +934,7 @@ public class Jalview2XML
               tree.setWidth(tp.getWidth());
               tree.setXpos(tp.getX());
               tree.setYpos(tp.getY());
-
+              tree.setId(makeHashCode(tp, null));
               jms.addTree(tree);
             }
           }
@@ -556,123 +942,70 @@ public class Jalview2XML
       }
     }
 
-    //SAVE ANNOTATIONS
-    if (jal.getAlignmentAnnotation() != null)
+    /*
+     * Save associated Varna panels
+     */
+    if (Desktop.desktop != null)
     {
-      jalview.datamodel.AlignmentAnnotation[] aa = jal
-              .getAlignmentAnnotation();
-
-      for (int i = 0; i < aa.length; i++)
+      for (JInternalFrame frame : Desktop.desktop.getAllFrames())
       {
-        Annotation an = new Annotation();
-
-        if (aa[i].annotationId != null)
-        {
-          annotationIds.put(aa[i].annotationId, aa[i]);
-        }
-
-        an.setId(aa[i].annotationId);
-
-        if (aa[i] == av.quality || aa[i] == av.conservation
-                || aa[i] == av.consensus)
-        {
-          an.setLabel(aa[i].label);
-          an.setGraph(true);
-          vamsasSet.addAnnotation(an);
-          continue;
-        }
-
-        an.setVisible(aa[i].visible);
-
-        an.setDescription(aa[i].description);
-
-        if (aa[i].sequenceRef != null)
+        if (frame instanceof AppVarna)
         {
-          an.setSequenceRef(aa[i].sequenceRef.getName());
-        }
-
-        if (aa[i].graph > 0)
-        {
-          an.setGraph(true);
-          an.setGraphType(aa[i].graph);
-          an.setGraphGroup(aa[i].graphGroup);
-          if (aa[i].getThreshold() != null)
+          AppVarna vp = (AppVarna) frame;
+          if (vp.ap == ap)
           {
-            ThresholdLine line = new ThresholdLine();
-            line.setLabel(aa[i].getThreshold().label);
-            line.setValue(aa[i].getThreshold().value);
-            line.setColour(aa[i].getThreshold().colour.getRGB());
-            an.setThresholdLine(line);
+            // save Varna state
           }
         }
-        else
-        {
-          an.setGraph(false);
-        }
-
-        an.setLabel(aa[i].label);
-        if (aa[i].hasScore())
-        {
-          an.setScore(aa[i].getScore());
-        }
-        AnnotationElement ae;
-        if (aa[i].annotations != null)
-        {
-          an.setScoreOnly(false);
-          for (int a = 0; a < aa[i].annotations.length; a++)
-          {
-            if ((aa[i] == null) || (aa[i].annotations[a] == null))
-            {
-              continue;
-            }
-
-            ae = new AnnotationElement();
-            if (aa[i].annotations[a].description != null)
-              ae.setDescription(aa[i].annotations[a].description);
-            if (aa[i].annotations[a].displayCharacter != null)
-              ae.setDisplayCharacter(aa[i].annotations[a].displayCharacter);
-
-            if (!Float.isNaN(aa[i].annotations[a].value))
-              ae.setValue(aa[i].annotations[a].value);
-
-            ae.setPosition(a);
-            if (aa[i].annotations[a].secondaryStructure != ' '
-                    && aa[i].annotations[a].secondaryStructure != '\0')
-              ae
-                      .setSecondaryStructure(aa[i].annotations[a].secondaryStructure
-                              + "");
-
-            if (aa[i].annotations[a].colour != null
-                    && aa[i].annotations[a].colour != java.awt.Color.black)
-            {
-              ae.setColour(aa[i].annotations[a].colour.getRGB());
-            }
+      }
+    }
 
-            an.addAnnotationElement(ae);
-          }
-        }
-        else
+    // SAVE ANNOTATIONS
+    /**
+     * store forward refs from an annotationRow to any groups
+     */
+    IdentityHashMap groupRefs = new IdentityHashMap();
+    if (storeDS)
+    {
+      for (SequenceI sq : jal.getSequences())
+      {
+        // Store annotation on dataset sequences only
+        jalview.datamodel.AlignmentAnnotation[] aa = sq.getAnnotation();
+        if (aa != null && aa.length > 0)
         {
-          an.setScoreOnly(true);
+          storeAlignmentAnnotation(aa, groupRefs, av, calcIdSet, storeDS,
+                  vamsasSet);
         }
-        vamsasSet.addAnnotation(an);
       }
     }
-
-    //SAVE GROUPS
+    else
+    {
+      if (jal.getAlignmentAnnotation() != null)
+      {
+        // Store the annotation shown on the alignment.
+        jalview.datamodel.AlignmentAnnotation[] aa = jal
+                .getAlignmentAnnotation();
+        storeAlignmentAnnotation(aa, groupRefs, av, calcIdSet, storeDS,
+                vamsasSet);
+      }
+    }
+    // SAVE GROUPS
     if (jal.getGroups() != null)
     {
       JGroup[] groups = new JGroup[jal.getGroups().size()];
-
-      for (int i = 0; i < groups.length; i++)
+      int i = -1;
+      for (jalview.datamodel.SequenceGroup sg : jal.getGroups())
       {
-        groups[i] = new JGroup();
+        groups[++i] = new JGroup();
 
-        jalview.datamodel.SequenceGroup sg = (jalview.datamodel.SequenceGroup) jal
-                .getGroups().elementAt(i);
         groups[i].setStart(sg.getStartRes());
         groups[i].setEnd(sg.getEndRes());
         groups[i].setName(sg.getName());
+        if (groupRefs.containsKey(sg))
+        {
+          // group has references so set it's ID field
+          groups[i].setId(groupRefs.get(sg).toString());
+        }
         if (sg.cs != null)
         {
           if (sg.cs.conservationApplied())
@@ -681,7 +1014,7 @@ public class Jalview2XML
 
             if (sg.cs instanceof jalview.schemes.UserColourScheme)
             {
-              groups[i].setColour(SetUserColourScheme(sg.cs, userColours,
+              groups[i].setColour(setUserColourScheme(sg.cs, userColours,
                       jms));
             }
             else
@@ -692,15 +1025,15 @@ public class Jalview2XML
           }
           else if (sg.cs instanceof jalview.schemes.AnnotationColourGradient)
           {
-            groups[i]
-                    .setColour(ColourSchemeProperty
-                            .getColourName(((jalview.schemes.AnnotationColourGradient) sg.cs)
-                                    .getBaseColour()));
+            groups[i].setColour("AnnotationColourGradient");
+            groups[i].setAnnotationColours(constructAnnotationColours(
+                    (jalview.schemes.AnnotationColourGradient) sg.cs,
+                    userColours, jms));
           }
           else if (sg.cs instanceof jalview.schemes.UserColourScheme)
           {
             groups[i]
-                    .setColour(SetUserColourScheme(sg.cs, userColours, jms));
+                    .setColour(setUserColourScheme(sg.cs, userColours, jms));
           }
           else
           {
@@ -717,249 +1050,777 @@ public class Jalview2XML
         groups[i].setTextCol1(sg.textColour.getRGB());
         groups[i].setTextCol2(sg.textColour2.getRGB());
         groups[i].setTextColThreshold(sg.thresholdTextColour);
-
+        groups[i].setShowUnconserved(sg.getShowNonconserved());
+        groups[i].setIgnoreGapsinConsensus(sg.getIgnoreGapsConsensus());
+        groups[i].setShowConsensusHistogram(sg.isShowConsensusHistogram());
+        groups[i].setShowSequenceLogo(sg.isShowSequenceLogo());
+        groups[i].setNormaliseSequenceLogo(sg.isNormaliseSequenceLogo());
         for (int s = 0; s < sg.getSize(); s++)
         {
           jalview.datamodel.Sequence seq = (jalview.datamodel.Sequence) sg
                   .getSequenceAt(s);
-          groups[i].addSeq(seq.hashCode());
+          groups[i].addSeq(seqHash(seq));
         }
       }
 
       jms.setJGroup(groups);
     }
-
-    ///////////SAVE VIEWPORT
-    Viewport view = new Viewport();
-    view.setTitle(ap.alignFrame.getTitle());
-    view.setSequenceSetId(av.getSequenceSetId());
-    view.setViewName(av.viewName);
-    view.setGatheredViews(av.gatherViewsHere);
-
-    if (ap.av.explodedPosition != null)
-    {
-      view.setXpos(av.explodedPosition.x);
-      view.setYpos(av.explodedPosition.y);
-      view.setWidth(av.explodedPosition.width);
-      view.setHeight(av.explodedPosition.height);
-    }
-    else
+    if (!storeDS)
     {
-      view.setXpos(ap.alignFrame.getBounds().x);
-      view.setYpos(ap.alignFrame.getBounds().y);
-      view.setWidth(ap.alignFrame.getBounds().width);
-      view.setHeight(ap.alignFrame.getBounds().height);
-    }
+      // /////////SAVE VIEWPORT
+      Viewport view = new Viewport();
+      view.setTitle(ap.alignFrame.getTitle());
+      view.setSequenceSetId(makeHashCode(av.getSequenceSetId(),
+              av.getSequenceSetId()));
+      view.setId(av.getViewId());
+      if (av.getCodingComplement() != null)
+      {
+        view.setComplementId(av.getCodingComplement().getViewId());
+      }
+      view.setViewName(av.viewName);
+      view.setGatheredViews(av.isGatherViewsHere());
 
-    view.setStartRes(av.startRes);
-    view.setStartSeq(av.startSeq);
+      Rectangle position = ap.av.getExplodedGeometry();
+      if (position == null)
+      {
+        position = ap.alignFrame.getBounds();
+      }
+      view.setXpos(position.x);
+      view.setYpos(position.y);
+      view.setWidth(position.width);
+      view.setHeight(position.height);
 
-    if (av.getGlobalColourScheme() instanceof jalview.schemes.UserColourScheme)
-    {
-      view.setBgColour(SetUserColourScheme(av.getGlobalColourScheme(),
-              userColours, jms));
-    }
-    else if (av.getGlobalColourScheme() instanceof jalview.schemes.AnnotationColourGradient)
-    {
-      jalview.schemes.AnnotationColourGradient acg = (jalview.schemes.AnnotationColourGradient) av
-              .getGlobalColourScheme();
+      view.setStartRes(av.startRes);
+      view.setStartSeq(av.startSeq);
 
-      AnnotationColours ac = new AnnotationColours();
-      ac.setAboveThreshold(acg.getAboveThreshold());
-      ac.setThreshold(acg.getAnnotationThreshold());
-      ac.setAnnotation(acg.getAnnotation());
-      if (acg.getBaseColour() instanceof jalview.schemes.UserColourScheme)
+      if (av.getGlobalColourScheme() instanceof jalview.schemes.UserColourScheme)
       {
-        ac.setColourScheme(SetUserColourScheme(acg.getBaseColour(),
+        view.setBgColour(setUserColourScheme(av.getGlobalColourScheme(),
                 userColours, jms));
       }
+      else if (av.getGlobalColourScheme() instanceof jalview.schemes.AnnotationColourGradient)
+      {
+        AnnotationColours ac = constructAnnotationColours(
+                (jalview.schemes.AnnotationColourGradient) av
+                        .getGlobalColourScheme(),
+                userColours, jms);
+
+        view.setAnnotationColours(ac);
+        view.setBgColour("AnnotationColourGradient");
+      }
       else
       {
-        ac.setColourScheme(ColourSchemeProperty.getColourName(acg
-                .getBaseColour()));
+        view.setBgColour(ColourSchemeProperty.getColourName(av
+                .getGlobalColourScheme()));
       }
 
-      ac.setMaxColour(acg.getMaxColour().getRGB());
-      ac.setMinColour(acg.getMinColour().getRGB());
-      view.setAnnotationColours(ac);
-      view.setBgColour("AnnotationColourGradient");
-    }
-    else
-    {
-      view.setBgColour(ColourSchemeProperty.getColourName(av
-              .getGlobalColourScheme()));
-    }
+      ColourSchemeI cs = av.getGlobalColourScheme();
 
-    ColourSchemeI cs = av.getGlobalColourScheme();
+      if (cs != null)
+      {
+        if (cs.conservationApplied())
+        {
+          view.setConsThreshold(cs.getConservationInc());
+          if (cs instanceof jalview.schemes.UserColourScheme)
+          {
+            view.setBgColour(setUserColourScheme(cs, userColours, jms));
+          }
+        }
 
-    if (cs != null)
-    {
-      if (cs.conservationApplied())
+        if (cs instanceof ResidueColourScheme)
+        {
+          view.setPidThreshold(cs.getThreshold());
+        }
+      }
+
+      view.setConservationSelected(av.getConservationSelected());
+      view.setPidSelected(av.getAbovePIDThreshold());
+      view.setFontName(av.font.getName());
+      view.setFontSize(av.font.getSize());
+      view.setFontStyle(av.font.getStyle());
+      view.setRenderGaps(av.isRenderGaps());
+      view.setShowAnnotation(av.isShowAnnotation());
+      view.setShowBoxes(av.getShowBoxes());
+      view.setShowColourText(av.getColourText());
+      view.setShowFullId(av.getShowJVSuffix());
+      view.setRightAlignIds(av.isRightAlignIds());
+      view.setShowSequenceFeatures(av.isShowSequenceFeatures());
+      view.setShowText(av.getShowText());
+      view.setShowUnconserved(av.getShowUnconserved());
+      view.setWrapAlignment(av.getWrapAlignment());
+      view.setTextCol1(av.getTextColour().getRGB());
+      view.setTextCol2(av.getTextColour2().getRGB());
+      view.setTextColThreshold(av.getThresholdTextColour());
+      view.setShowConsensusHistogram(av.isShowConsensusHistogram());
+      view.setShowSequenceLogo(av.isShowSequenceLogo());
+      view.setNormaliseSequenceLogo(av.isNormaliseSequenceLogo());
+      view.setShowGroupConsensus(av.isShowGroupConsensus());
+      view.setShowGroupConservation(av.isShowGroupConservation());
+      view.setShowNPfeatureTooltip(av.isShowNPFeats());
+      view.setShowDbRefTooltip(av.isShowDBRefs());
+      view.setFollowHighlight(av.isFollowHighlight());
+      view.setFollowSelection(av.followSelection);
+      view.setIgnoreGapsinConsensus(av.isIgnoreGapsConsensus());
+      if (av.getFeaturesDisplayed() != null)
+      {
+        jalview.schemabinding.version2.FeatureSettings fs = new jalview.schemabinding.version2.FeatureSettings();
+
+        String[] renderOrder = ap.getSeqPanel().seqCanvas
+                .getFeatureRenderer().getRenderOrder()
+                .toArray(new String[0]);
+
+        Vector settingsAdded = new Vector();
+        Object gstyle = null;
+        GraduatedColor gcol = null;
+        if (renderOrder != null)
+        {
+          for (int ro = 0; ro < renderOrder.length; ro++)
+          {
+            gstyle = ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                    .getFeatureStyle(renderOrder[ro]);
+            Setting setting = new Setting();
+            setting.setType(renderOrder[ro]);
+            if (gstyle instanceof GraduatedColor)
+            {
+              gcol = (GraduatedColor) gstyle;
+              setting.setColour(gcol.getMaxColor().getRGB());
+              setting.setMincolour(gcol.getMinColor().getRGB());
+              setting.setMin(gcol.getMin());
+              setting.setMax(gcol.getMax());
+              setting.setColourByLabel(gcol.isColourByLabel());
+              setting.setAutoScale(gcol.isAutoScale());
+              setting.setThreshold(gcol.getThresh());
+              setting.setThreshstate(gcol.getThreshType());
+            }
+            else
+            {
+              setting.setColour(ap.getSeqPanel().seqCanvas
+                      .getFeatureRenderer()
+                      .getColour(renderOrder[ro]).getRGB());
+            }
+
+            setting.setDisplay(av.getFeaturesDisplayed().isVisible(
+                    renderOrder[ro]));
+            float rorder = ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                    .getOrder(renderOrder[ro]);
+            if (rorder > -1)
+            {
+              setting.setOrder(rorder);
+            }
+            fs.addSetting(setting);
+            settingsAdded.addElement(renderOrder[ro]);
+          }
+        }
+
+        // Make sure we save none displayed feature settings
+        Iterator en = ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                .getFeatureColours().keySet().iterator();
+        while (en.hasNext())
+        {
+          String key = en.next().toString();
+          if (settingsAdded.contains(key))
+          {
+            continue;
+          }
+
+          Setting setting = new Setting();
+          setting.setType(key);
+          setting.setColour(ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                  .getColour(key).getRGB());
+
+          setting.setDisplay(false);
+          float rorder = ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                  .getOrder(key);
+          if (rorder > -1)
+          {
+            setting.setOrder(rorder);
+          }
+          fs.addSetting(setting);
+          settingsAdded.addElement(key);
+        }
+        // is groups actually supposed to be a map here ?
+        en = ap.getSeqPanel().seqCanvas.getFeatureRenderer()
+                .getFeatureGroups().iterator();
+        Vector groupsAdded = new Vector();
+        while (en.hasNext())
+        {
+          String grp = en.next().toString();
+          if (groupsAdded.contains(grp))
+          {
+            continue;
+          }
+          Group g = new Group();
+          g.setName(grp);
+          g.setDisplay(((Boolean) ap.getSeqPanel().seqCanvas
+                  .getFeatureRenderer().checkGroupVisibility(grp, false))
+                  .booleanValue());
+          fs.addGroup(g);
+          groupsAdded.addElement(grp);
+        }
+        jms.setFeatureSettings(fs);
+
+      }
+
+      if (av.hasHiddenColumns())
+      {
+        if (av.getColumnSelection() == null
+                || av.getColumnSelection().getHiddenColumns() == null)
+        {
+          warn("REPORT BUG: avoided null columnselection bug (DMAM reported). Please contact Jim about this.");
+        }
+        else
+        {
+          for (int c = 0; c < av.getColumnSelection().getHiddenColumns()
+                  .size(); c++)
+          {
+            int[] region = av.getColumnSelection().getHiddenColumns()
+                    .get(c);
+            HiddenColumns hc = new HiddenColumns();
+            hc.setStart(region[0]);
+            hc.setEnd(region[1]);
+            view.addHiddenColumns(hc);
+          }
+        }
+      }
+      if (calcIdSet.size() > 0)
       {
-        view.setConsThreshold(cs.getConservationInc());
-        if (cs instanceof jalview.schemes.UserColourScheme)
+        for (String calcId : calcIdSet)
         {
-          view.setBgColour(SetUserColourScheme(cs, userColours, jms));
+          if (calcId.trim().length() > 0)
+          {
+            CalcIdParam cidp = createCalcIdParam(calcId, av);
+            // Some calcIds have no parameters.
+            if (cidp != null)
+            {
+              view.addCalcIdParam(cidp);
+            }
+          }
         }
       }
 
-      if (cs instanceof ResidueColourScheme)
+      jms.addViewport(view);
+    }
+    object.setJalviewModelSequence(jms);
+    object.getVamsasModel().addSequenceSet(vamsasSet);
+
+    if (jout != null && fileName != null)
+    {
+      // We may not want to write the object to disk,
+      // eg we can copy the alignViewport to a new view object
+      // using save and then load
+      try
+      {
+        JarEntry entry = new JarEntry(fileName);
+        jout.putNextEntry(entry);
+        PrintWriter pout = new PrintWriter(new OutputStreamWriter(jout,
+                UTF_8));
+        Marshaller marshaller = new Marshaller(pout);
+        marshaller.marshal(object);
+        pout.flush();
+        jout.closeEntry();
+      } catch (Exception ex)
       {
-        view.setPidThreshold(cs.getThreshold());
+        // TODO: raise error in GUI if marshalling failed.
+        ex.printStackTrace();
       }
     }
+    return object;
+  }
 
-    view.setConservationSelected(av.getConservationSelected());
-    view.setPidSelected(av.getAbovePIDThreshold());
-    view.setFontName(av.font.getName());
-    view.setFontSize(av.font.getSize());
-    view.setFontStyle(av.font.getStyle());
-    view.setRenderGaps(av.renderGaps);
-    view.setShowAnnotation(av.getShowAnnotation());
-    view.setShowBoxes(av.getShowBoxes());
-    view.setShowColourText(av.getColourText());
-    view.setShowFullId(av.getShowJVSuffix());
-    view.setRightAlignIds(av.rightAlignIds);
-    view.setShowSequenceFeatures(av.showSequenceFeatures);
-    view.setShowText(av.getShowText());
-    view.setWrapAlignment(av.getWrapAlignment());
-    view.setTextCol1(av.textColour.getRGB());
-    view.setTextCol2(av.textColour2.getRGB());
-    view.setTextColThreshold(av.thresholdTextColour);
+  /**
+   * Copy the contents of a file to a new file added to the output jar
+   * 
+   * @param jout
+   * @param infilePath
+   * @param jarfileName
+   */
+  protected void copyFileToJar(JarOutputStream jout, String infilePath,
+          String jarfileName)
+  {
+    DataInputStream dis = null;
+    try
+    {
+      File file = new File(infilePath);
+      if (file.exists() && jout != null)
+      {
+        dis = new DataInputStream(new FileInputStream(file));
+        byte[] data = new byte[(int) file.length()];
+        dis.readFully(data);
+        writeJarEntry(jout, jarfileName, data);
+      }
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+    } finally
+    {
+      if (dis != null)
+      {
+        try
+        {
+          dis.close();
+        } catch (IOException e)
+        {
+          // ignore
+        }
+      }
+    }
+  }
 
-    if (av.featuresDisplayed != null)
+  /**
+   * Write the data to a new entry of given name in the output jar file
+   * 
+   * @param jout
+   * @param jarfileName
+   * @param data
+   * @throws IOException
+   */
+  protected void writeJarEntry(JarOutputStream jout, String jarfileName,
+          byte[] data) throws IOException
+  {
+    if (jout != null)
     {
-      jalview.schemabinding.version2.FeatureSettings fs = new jalview.schemabinding.version2.FeatureSettings();
+      jout.putNextEntry(new JarEntry(jarfileName));
+      DataOutputStream dout = new DataOutputStream(jout);
+      dout.write(data, 0, data.length);
+      dout.flush();
+      jout.closeEntry();
+    }
+  }
 
-      String[] renderOrder = ap.seqPanel.seqCanvas.getFeatureRenderer().renderOrder;
+  /**
+   * Save the state of a structure viewer
+   * 
+   * @param ap
+   * @param jds
+   * @param pdb
+   *          the archive XML element under which to save the state
+   * @param entry
+   * @param viewIds
+   * @param matchedFile
+   * @param viewFrame
+   * @return
+   */
+  protected String saveStructureState(AlignmentPanel ap, SequenceI jds,
+          Pdbids pdb, PDBEntry entry, List<String> viewIds,
+          String matchedFile, StructureViewerBase viewFrame)
+  {
+    final AAStructureBindingModel bindingModel = viewFrame.getBinding();
 
-      Vector settingsAdded = new Vector();
-      for (int ro = 0; ro < renderOrder.length; ro++)
+    /*
+     * Look for any bindings for this viewer to the PDB file of interest
+     * (including part matches excluding chain id)
+     */
+    for (int peid = 0; peid < bindingModel.getPdbCount(); peid++)
+    {
+      final PDBEntry pdbentry = bindingModel.getPdbEntry(peid);
+      final String pdbId = pdbentry.getId();
+      if (!pdbId.equals(entry.getId())
+              && !(entry.getId().length() > 4 && entry.getId()
+                      .toLowerCase().startsWith(pdbId.toLowerCase())))
+      {
+        /*
+         * not interested in a binding to a different PDB entry here
+         */
+        continue;
+      }
+      if (matchedFile == null)
+      {
+        matchedFile = pdbentry.getFile();
+      }
+      else if (!matchedFile.equals(pdbentry.getFile()))
       {
-        Setting setting = new Setting();
-        setting.setType(renderOrder[ro]);
-        setting.setColour(ap.seqPanel.seqCanvas.getFeatureRenderer()
-                .getColour(renderOrder[ro]).getRGB());
+        Cache.log
+                .warn("Probably lost some PDB-Sequence mappings for this structure file (which apparently has same PDB Entry code): "
+                        + pdbentry.getFile());
+      }
+      // record the
+      // file so we
+      // can get at it if the ID
+      // match is ambiguous (e.g.
+      // 1QIP==1qipA)
 
-        setting.setDisplay(av.featuresDisplayed
-                .containsKey(renderOrder[ro]));
-        float rorder = ap.seqPanel.seqCanvas.getFeatureRenderer().getOrder(
-                renderOrder[ro]);
-        if (rorder > -1)
+      for (int smap = 0; smap < viewFrame.getBinding().getSequence()[peid].length; smap++)
+      {
+        // if (jal.findIndex(jmol.jmb.sequence[peid][smap]) > -1)
+        if (jds == viewFrame.getBinding().getSequence()[peid][smap])
         {
-          setting.setOrder(rorder);
+          StructureState state = new StructureState();
+          state.setVisible(true);
+          state.setXpos(viewFrame.getX());
+          state.setYpos(viewFrame.getY());
+          state.setWidth(viewFrame.getWidth());
+          state.setHeight(viewFrame.getHeight());
+          final String viewId = viewFrame.getViewId();
+          state.setViewId(viewId);
+          state.setAlignwithAlignPanel(viewFrame.isUsedforaligment(ap));
+          state.setColourwithAlignPanel(viewFrame.isUsedforcolourby(ap));
+          state.setColourByJmol(viewFrame.isColouredByViewer());
+          state.setType(viewFrame.getViewerType().toString());
+          pdb.addStructureState(state);
         }
-        fs.addSetting(setting);
-        settingsAdded.addElement(renderOrder[ro]);
       }
+    }
+    return matchedFile;
+  }
 
-      //Make sure we save none displayed feature settings
-      Enumeration en = ap.seqPanel.seqCanvas.getFeatureRenderer().featureColours
-              .keys();
-      while (en.hasMoreElements())
+  private AnnotationColours constructAnnotationColours(
+          AnnotationColourGradient acg, List<UserColourScheme> userColours,
+          JalviewModelSequence jms)
+  {
+    AnnotationColours ac = new AnnotationColours();
+    ac.setAboveThreshold(acg.getAboveThreshold());
+    ac.setThreshold(acg.getAnnotationThreshold());
+    ac.setAnnotation(acg.getAnnotation());
+    if (acg.getBaseColour() instanceof jalview.schemes.UserColourScheme)
+    {
+      ac.setColourScheme(setUserColourScheme(acg.getBaseColour(),
+              userColours, jms));
+    }
+    else
+    {
+      ac.setColourScheme(ColourSchemeProperty.getColourName(acg
+              .getBaseColour()));
+    }
+
+    ac.setMaxColour(acg.getMaxColour().getRGB());
+    ac.setMinColour(acg.getMinColour().getRGB());
+    ac.setPerSequence(acg.isSeqAssociated());
+    ac.setPredefinedColours(acg.isPredefinedColours());
+    return ac;
+  }
+
+  private void storeAlignmentAnnotation(AlignmentAnnotation[] aa,
+          IdentityHashMap groupRefs, AlignmentViewport av,
+          Set<String> calcIdSet, boolean storeDS, SequenceSet vamsasSet)
+  {
+
+    for (int i = 0; i < aa.length; i++)
+    {
+      Annotation an = new Annotation();
+
+      if (aa[i].annotationId != null)
       {
-        String key = en.nextElement().toString();
-        if (settingsAdded.contains(key))
+        annotationIds.put(aa[i].annotationId, aa[i]);
+      }
+
+      an.setId(aa[i].annotationId);
+
+      an.setVisible(aa[i].visible);
+
+      an.setDescription(aa[i].description);
+
+      if (aa[i].sequenceRef != null)
+      {
+        // TODO later annotation sequenceRef should be the XML ID of the
+        // sequence rather than its display name
+        an.setSequenceRef(aa[i].sequenceRef.getName());
+      }
+      if (aa[i].groupRef != null)
+      {
+        Object groupIdr = groupRefs.get(aa[i].groupRef);
+        if (groupIdr == null)
         {
-          continue;
+          // make a locally unique String
+          groupRefs.put(aa[i].groupRef,
+                  groupIdr = ("" + System.currentTimeMillis()
+                          + aa[i].groupRef.getName() + groupRefs.size()));
         }
+        an.setGroupRef(groupIdr.toString());
+      }
 
-        Setting setting = new Setting();
-        setting.setType(key);
-        setting.setColour(ap.seqPanel.seqCanvas.getFeatureRenderer()
-                .getColour(key).getRGB());
+      // store all visualization attributes for annotation
+      an.setGraphHeight(aa[i].graphHeight);
+      an.setCentreColLabels(aa[i].centreColLabels);
+      an.setScaleColLabels(aa[i].scaleColLabel);
+      an.setShowAllColLabels(aa[i].showAllColLabels);
+      an.setBelowAlignment(aa[i].belowAlignment);
 
-        setting.setDisplay(false);
-        float rorder = ap.seqPanel.seqCanvas.getFeatureRenderer().getOrder(
-                key);
-        if (rorder > -1)
+      if (aa[i].graph > 0)
+      {
+        an.setGraph(true);
+        an.setGraphType(aa[i].graph);
+        an.setGraphGroup(aa[i].graphGroup);
+        if (aa[i].getThreshold() != null)
         {
-          setting.setOrder(rorder);
+          ThresholdLine line = new ThresholdLine();
+          line.setLabel(aa[i].getThreshold().label);
+          line.setValue(aa[i].getThreshold().value);
+          line.setColour(aa[i].getThreshold().colour.getRGB());
+          an.setThresholdLine(line);
         }
-        fs.addSetting(setting);
-        settingsAdded.addElement(key);
       }
-      en = ap.seqPanel.seqCanvas.getFeatureRenderer().featureGroups.keys();
-      Vector groupsAdded = new Vector();
-      while (en.hasMoreElements())
+      else
+      {
+        an.setGraph(false);
+      }
+
+      an.setLabel(aa[i].label);
+
+      if (aa[i] == av.getAlignmentQualityAnnot()
+              || aa[i] == av.getAlignmentConservationAnnotation()
+              || aa[i] == av.getAlignmentConsensusAnnotation()
+              || aa[i].autoCalculated)
+      {
+        // new way of indicating autocalculated annotation -
+        an.setAutoCalculated(aa[i].autoCalculated);
+      }
+      if (aa[i].hasScore())
+      {
+        an.setScore(aa[i].getScore());
+      }
+
+      if (aa[i].getCalcId() != null)
+      {
+        calcIdSet.add(aa[i].getCalcId());
+        an.setCalcId(aa[i].getCalcId());
+      }
+      if (aa[i].hasProperties())
       {
-        String grp = en.nextElement().toString();
-        if (groupsAdded.contains(grp))
+        for (String pr : aa[i].getProperties())
         {
-          continue;
+          Property prop = new Property();
+          prop.setName(pr);
+          prop.setValue(aa[i].getProperty(pr));
+          an.addProperty(prop);
         }
-        Group g = new Group();
-        g.setName(grp);
-        g
-                .setDisplay(((Boolean) ap.seqPanel.seqCanvas
-                        .getFeatureRenderer().featureGroups.get(grp))
-                        .booleanValue());
-        fs.addGroup(g);
-        groupsAdded.addElement(grp);
       }
-      jms.setFeatureSettings(fs);
 
-    }
+      AnnotationElement ae;
+      if (aa[i].annotations != null)
+      {
+        an.setScoreOnly(false);
+        for (int a = 0; a < aa[i].annotations.length; a++)
+        {
+          if ((aa[i] == null) || (aa[i].annotations[a] == null))
+          {
+            continue;
+          }
 
-    if (av.hasHiddenColumns)
-    {
-      for (int c = 0; c < av.getColumnSelection().getHiddenColumns().size(); c++)
+          ae = new AnnotationElement();
+          if (aa[i].annotations[a].description != null)
+          {
+            ae.setDescription(aa[i].annotations[a].description);
+          }
+          if (aa[i].annotations[a].displayCharacter != null)
+          {
+            ae.setDisplayCharacter(aa[i].annotations[a].displayCharacter);
+          }
+
+          if (!Float.isNaN(aa[i].annotations[a].value))
+          {
+            ae.setValue(aa[i].annotations[a].value);
+          }
+
+          ae.setPosition(a);
+          if (aa[i].annotations[a].secondaryStructure > ' ')
+          {
+            ae.setSecondaryStructure(aa[i].annotations[a].secondaryStructure
+                    + "");
+          }
+
+          if (aa[i].annotations[a].colour != null
+                  && aa[i].annotations[a].colour != java.awt.Color.black)
+          {
+            ae.setColour(aa[i].annotations[a].colour.getRGB());
+          }
+
+          an.addAnnotationElement(ae);
+          if (aa[i].autoCalculated)
+          {
+            // only write one non-null entry into the annotation row -
+            // sufficient to get the visualization attributes necessary to
+            // display data
+            continue;
+          }
+        }
+      }
+      else
+      {
+        an.setScoreOnly(true);
+      }
+      if (!storeDS || (storeDS && !aa[i].autoCalculated))
       {
-        int[] region = (int[]) av.getColumnSelection().getHiddenColumns()
-                .elementAt(c);
-        HiddenColumns hc = new HiddenColumns();
-        hc.setStart(region[0]);
-        hc.setEnd(region[1]);
-        view.addHiddenColumns(hc);
+        // skip autocalculated annotation - these are only provided for
+        // alignments
+        vamsasSet.addAnnotation(an);
       }
     }
 
-    jms.addViewport(view);
+  }
 
-    object.setJalviewModelSequence(jms);
-    object.getVamsasModel().addSequenceSet(vamsasSet);
+  private CalcIdParam createCalcIdParam(String calcId, AlignViewport av)
+  {
+    AutoCalcSetting settings = av.getCalcIdSettingsFor(calcId);
+    if (settings != null)
+    {
+      CalcIdParam vCalcIdParam = new CalcIdParam();
+      vCalcIdParam.setCalcId(calcId);
+      vCalcIdParam.addServiceURL(settings.getServiceURI());
+      // generic URI allowing a third party to resolve another instance of the
+      // service used for this calculation
+      for (String urls : settings.getServiceURLs())
+      {
+        vCalcIdParam.addServiceURL(urls);
+      }
+      vCalcIdParam.setVersion("1.0");
+      if (settings.getPreset() != null)
+      {
+        WsParamSetI setting = settings.getPreset();
+        vCalcIdParam.setName(setting.getName());
+        vCalcIdParam.setDescription(setting.getDescription());
+      }
+      else
+      {
+        vCalcIdParam.setName("");
+        vCalcIdParam.setDescription("Last used parameters");
+      }
+      // need to be able to recover 1) settings 2) user-defined presets or
+      // recreate settings from preset 3) predefined settings provided by
+      // service - or settings that can be transferred (or discarded)
+      vCalcIdParam.setParameters(settings.getWsParamFile().replace("\n",
+              "|\\n|"));
+      vCalcIdParam.setAutoUpdate(settings.isAutoUpdate());
+      // todo - decide if updateImmediately is needed for any projects.
+
+      return vCalcIdParam;
+    }
+    return null;
+  }
 
-    if (out != null)
+  private boolean recoverCalcIdParam(CalcIdParam calcIdParam,
+          AlignViewport av)
+  {
+    if (calcIdParam.getVersion().equals("1.0"))
     {
-      //We may not want to right the object to disk,
-      //eg we can copy the alignViewport to a new view object
-      //using save and then load
-      try
+      Jws2Instance service = Jws2Discoverer.getDiscoverer()
+              .getPreferredServiceFor(calcIdParam.getServiceURL());
+      if (service != null)
       {
-        if (!fileName.endsWith(".xml"))
+        WsParamSetI parmSet = null;
+        try
+        {
+          parmSet = service.getParamStore().parseServiceParameterFile(
+                  calcIdParam.getName(), calcIdParam.getDescription(),
+                  calcIdParam.getServiceURL(),
+                  calcIdParam.getParameters().replace("|\\n|", "\n"));
+        } catch (IOException x)
+        {
+          warn("Couldn't parse parameter data for "
+                  + calcIdParam.getCalcId(), x);
+          return false;
+        }
+        List<ArgumentI> argList = null;
+        if (calcIdParam.getName().length() > 0)
+        {
+          parmSet = service.getParamStore()
+                  .getPreset(calcIdParam.getName());
+          if (parmSet != null)
+          {
+            // TODO : check we have a good match with settings in AACon -
+            // otherwise we'll need to create a new preset
+          }
+        }
+        else
         {
-          fileName = fileName + ".xml";
+          argList = parmSet.getArguments();
+          parmSet = null;
         }
+        AAConSettings settings = new AAConSettings(
+                calcIdParam.isAutoUpdate(), service, parmSet, argList);
+        av.setCalcIdSettingsFor(calcIdParam.getCalcId(), settings,
+                calcIdParam.isNeedsUpdate());
+        return true;
+      }
+      else
+      {
+        warn("Cannot resolve a service for the parameters used in this project. Try configuring a JABAWS server.");
+        return false;
+      }
+    }
+    throw new Error(MessageManager.formatMessage(
+            "error.unsupported_version_calcIdparam", new Object[]
+            { calcIdParam.toString() }));
+  }
 
-        JarEntry entry = new JarEntry(fileName);
-        jout.putNextEntry(entry);
+  /**
+   * External mapping between jalview objects and objects yielding a valid and
+   * unique object ID string. This is null for normal Jalview project IO, but
+   * non-null when a jalview project is being read or written as part of a
+   * vamsas session.
+   */
+  IdentityHashMap jv2vobj = null;
 
-        object.marshal(out);
-      } catch (Exception ex)
+  /**
+   * Construct a unique ID for jvobj using either existing bindings or if none
+   * exist, the result of the hashcode call for the object.
+   * 
+   * @param jvobj
+   *          jalview data object
+   * @return unique ID for referring to jvobj
+   */
+  private String makeHashCode(Object jvobj, String altCode)
+  {
+    if (jv2vobj != null)
+    {
+      Object id = jv2vobj.get(jvobj);
+      if (id != null)
       {
-        ex.printStackTrace();
+        return id.toString();
+      }
+      // check string ID mappings
+      if (jvids2vobj != null && jvobj instanceof String)
+      {
+        id = jvids2vobj.get(jvobj);
+      }
+      if (id != null)
+      {
+        return id.toString();
       }
+      // give up and warn that something has gone wrong
+      warn("Cannot find ID for object in external mapping : " + jvobj);
     }
-    return object;
+    return altCode;
   }
 
-  private Sequence createVamsasSequence(int id, SequenceI jds)
+  /**
+   * return local jalview object mapped to ID, if it exists
+   * 
+   * @param idcode
+   *          (may be null)
+   * @return null or object bound to idcode
+   */
+  private Object retrieveExistingObj(String idcode)
+  {
+    if (idcode != null && vobj2jv != null)
+    {
+      return vobj2jv.get(idcode);
+    }
+    return null;
+  }
+
+  /**
+   * binding from ID strings from external mapping table to jalview data model
+   * objects.
+   */
+  private Hashtable vobj2jv;
+
+  private Sequence createVamsasSequence(String id, SequenceI jds)
   {
     return createVamsasSequence(true, id, jds, null);
   }
 
-  private Sequence createVamsasSequence(boolean recurse, int id,
+  private Sequence createVamsasSequence(boolean recurse, String id,
           SequenceI jds, SequenceI parentseq)
   {
     Sequence vamsasSeq = new Sequence();
-    vamsasSeq.setId(id + "");
+    vamsasSeq.setId(id);
     vamsasSeq.setName(jds.getName());
     vamsasSeq.setSequence(jds.getSequenceAsString());
     vamsasSeq.setDescription(jds.getDescription());
     jalview.datamodel.DBRefEntry[] dbrefs = null;
     if (jds.getDatasetSequence() != null)
     {
-      vamsasSeq.setDsseqid(jds.getDatasetSequence().hashCode() + "");
+      vamsasSeq.setDsseqid(seqHash(jds.getDatasetSequence()));
       if (jds.getDatasetSequence().getDBRef() != null)
       {
         dbrefs = jds.getDatasetSequence().getDBRef();
@@ -967,7 +1828,8 @@ public class Jalview2XML
     }
     else
     {
-      vamsasSeq.setDsseqid(id + ""); // so we can tell which sequences really are dataset sequences only
+      vamsasSeq.setDsseqid(id); // so we can tell which sequences really are
+      // dataset sequences only
       dbrefs = jds.getDBRef();
     }
     if (dbrefs != null)
@@ -999,20 +1861,20 @@ public class Jalview2XML
       mp = new Mapping();
 
       jalview.util.MapList mlst = jmp.getMap();
-      int r[] = mlst.getFromRanges();
-      for (int s = 0; s < r.length; s += 2)
+      List<int[]> r = mlst.getFromRanges();
+      for (int[] range : r)
       {
         MapListFrom mfrom = new MapListFrom();
-        mfrom.setStart(r[s]);
-        mfrom.setEnd(r[s + 1]);
+        mfrom.setStart(range[0]);
+        mfrom.setEnd(range[1]);
         mp.addMapListFrom(mfrom);
       }
       r = mlst.getToRanges();
-      for (int s = 0; s < r.length; s += 2)
+      for (int[] range : r)
       {
         MapListTo mto = new MapListTo();
-        mto.setStart(r[s]);
-        mto.setEnd(r[s + 1]);
+        mto.setStart(range[0]);
+        mto.setEnd(range[1]);
         mp.addMapListTo(mto);
       }
       mp.setMapFromUnit(mlst.getFromRatio());
@@ -1024,24 +1886,24 @@ public class Jalview2XML
                 && (parentseq != jmp.getTo() || parentseq
                         .getDatasetSequence() != jmp.getTo()))
         {
-          mpc.setSequence(createVamsasSequence(false, jmp.getTo()
-                  .hashCode(), jmp.getTo(), jds));
+          mpc.setSequence(createVamsasSequence(false, seqHash(jmp.getTo()),
+                  jmp.getTo(), jds));
         }
         else
         {
-          long jmpid = 0;
+          String jmpid = "";
           SequenceI ps = null;
           if (parentseq != jmp.getTo()
                   && parentseq.getDatasetSequence() != jmp.getTo())
           {
             // chaining dbref rather than a handshaking one
-            jmpid = (ps = jmp.getTo()).hashCode();
+            jmpid = seqHash(ps = jmp.getTo());
           }
           else
           {
-            jmpid = (ps = parentseq).hashCode();
+            jmpid = seqHash(ps = parentseq);
           }
-          mpc.setDseqFor("" + jmpid);
+          mpc.setDseqFor(jmpid);
           if (!seqRefIds.containsKey(mpc.getDseqFor()))
           {
             jalview.bin.Cache.log.debug("creatign new DseqFor ID");
@@ -1058,16 +1920,21 @@ public class Jalview2XML
     return mp;
   }
 
-  String SetUserColourScheme(jalview.schemes.ColourSchemeI cs,
-          Vector userColours, JalviewModelSequence jms)
+  String setUserColourScheme(jalview.schemes.ColourSchemeI cs,
+          List<UserColourScheme> userColours, JalviewModelSequence jms)
   {
     String id = null;
     jalview.schemes.UserColourScheme ucs = (jalview.schemes.UserColourScheme) cs;
-
+    boolean newucs = false;
     if (!userColours.contains(ucs))
     {
       userColours.add(ucs);
-
+      newucs = true;
+    }
+    id = "ucs" + userColours.indexOf(ucs);
+    if (newucs)
+    {
+      // actually create the scheme's entry in the XML model
       java.awt.Color[] colours = ucs.getColours();
       jalview.schemabinding.version2.UserColours uc = new jalview.schemabinding.version2.UserColours();
       jalview.schemabinding.version2.UserColourScheme jbucs = new jalview.schemabinding.version2.UserColourScheme();
@@ -1091,7 +1958,6 @@ public class Jalview2XML
         }
       }
 
-      id = "ucs" + userColours.indexOf(ucs);
       uc.setId(id);
       uc.setUserColourScheme(jbucs);
       jms.addUserColours(uc);
@@ -1100,7 +1966,7 @@ public class Jalview2XML
     return id;
   }
 
-  jalview.schemes.UserColourScheme GetUserColourScheme(
+  jalview.schemes.UserColourScheme getUserColourScheme(
           JalviewModelSequence jms, String id)
   {
     UserColours[] uc = jms.getUserColours();
@@ -1142,48 +2008,138 @@ public class Jalview2XML
   }
 
   /**
-   * DOCUMENT ME!
-   *
-   * @param file DOCUMENT ME!
+   * contains last error message (if any) encountered by XML loader.
    */
-  public AlignFrame LoadJalviewAlign(final String file)
-  {
-    uniqueSetSuffix = System.currentTimeMillis() % 100000 + "";
+  String errorMessage = null;
 
-    jalview.gui.AlignFrame af = null;
+  /**
+   * flag to control whether the Jalview2XML_V1 parser should be deferred to if
+   * exceptions are raised during project XML parsing
+   */
+  public boolean attemptversion1parse = true;
 
-    seqRefIds = new Hashtable();
-    viewportsAdded = new Hashtable();
-    frefedSequence = new Vector();
-    Hashtable gatherToThisFrame = new Hashtable();
+  /**
+   * Load a jalview project archive from a jar file
+   * 
+   * @param file
+   *          - HTTP URL or filename
+   */
+  public AlignFrame loadJalviewAlign(final String file)
+  {
 
-    String errorMessage = null;
+    jalview.gui.AlignFrame af = null;
 
     try
     {
-      //UNMARSHALLER SEEMS TO CLOSE JARINPUTSTREAM, MOST ANNOYING
-      URL url = null;
-
-      if (file.startsWith("http://"))
-      {
-        url = new URL(file);
-      }
+      // create list to store references for any new Jmol viewers created
+      newStructureViewers = new Vector<JalviewStructureDisplayI>();
+      // UNMARSHALLER SEEMS TO CLOSE JARINPUTSTREAM, MOST ANNOYING
+      // Workaround is to make sure caller implements the JarInputStreamProvider
+      // interface
+      // so we can re-open the jar input stream for each entry.
 
-      JarInputStream jin = null;
-      JarEntry jarentry = null;
-      int entryCount = 1;
+      jarInputStreamProvider jprovider = createjarInputStreamProvider(file);
+      af = loadJalviewAlign(jprovider);
 
-      do
+    } catch (MalformedURLException e)
+    {
+      errorMessage = "Invalid URL format for '" + file + "'";
+      reportErrors();
+    } finally
+    {
+      try
+      {
+        SwingUtilities.invokeAndWait(new Runnable()
+        {
+          public void run()
+          {
+            setLoadingFinishedForNewStructureViewers();
+          };
+        });
+      } catch (Exception x)
+      {
+
+      }
+    }
+    return af;
+  }
+
+  private jarInputStreamProvider createjarInputStreamProvider(
+          final String file) throws MalformedURLException
+  {
+    URL url = null;
+    errorMessage = null;
+    uniqueSetSuffix = null;
+    seqRefIds = null;
+    viewportsAdded.clear();
+    frefedSequence = null;
+
+    if (file.startsWith("http://"))
+    {
+      url = new URL(file);
+    }
+    final URL _url = url;
+    return new jarInputStreamProvider()
+    {
+
+      @Override
+      public JarInputStream getJarInputStream() throws IOException
       {
-        if (url != null)
+        if (_url != null)
         {
-          jin = new JarInputStream(url.openStream());
+          return new JarInputStream(_url.openStream());
         }
         else
         {
-          jin = new JarInputStream(new FileInputStream(file));
+          return new JarInputStream(new FileInputStream(file));
         }
+      }
+
+      @Override
+      public String getFilename()
+      {
+        return file;
+      }
+    };
+  }
+
+  /**
+   * Recover jalview session from a jalview project archive. Caller may
+   * initialise uniqueSetSuffix, seqRefIds, viewportsAdded and frefedSequence
+   * themselves. Any null fields will be initialised with default values,
+   * non-null fields are left alone.
+   * 
+   * @param jprovider
+   * @return
+   */
+  public AlignFrame loadJalviewAlign(final jarInputStreamProvider jprovider)
+  {
+    errorMessage = null;
+    if (uniqueSetSuffix == null)
+    {
+      uniqueSetSuffix = System.currentTimeMillis() % 100000 + "";
+    }
+    if (seqRefIds == null)
+    {
+      seqRefIds = new HashMap<String, SequenceI>();
+    }
+    if (frefedSequence == null)
+    {
+      frefedSequence = new Vector();
+    }
+
+    AlignFrame af = null, _af = null;
+    Map<String, AlignFrame> gatherToThisFrame = new HashMap<String, AlignFrame>();
+    final String file = jprovider.getFilename();
+    try
+    {
+      JarInputStream jin = null;
+      JarEntry jarentry = null;
+      int entryCount = 1;
 
+      do
+      {
+        jin = jprovider.getJarInputStream();
         for (int i = 0; i < entryCount; i++)
         {
           jarentry = jin.getNextJarEntry();
@@ -1191,23 +2147,29 @@ public class Jalview2XML
 
         if (jarentry != null && jarentry.getName().endsWith(".xml"))
         {
-          InputStreamReader in = new InputStreamReader(jin, "UTF-8");
+          InputStreamReader in = new InputStreamReader(jin, UTF_8);
           JalviewModel object = new JalviewModel();
 
           Unmarshaller unmar = new Unmarshaller(object);
           unmar.setValidation(false);
           object = (JalviewModel) unmar.unmarshal(in);
-
-          af = LoadFromObject(object, file, true);
-          if (af.viewport.gatherViewsHere)
+          if (true) // !skipViewport(object))
           {
-            gatherToThisFrame.put(af.viewport.getSequenceSetId(), af);
+            _af = loadFromObject(object, file, true, jprovider);
+            if (object.getJalviewModelSequence().getViewportCount() > 0)
+            {
+              af = _af;
+              if (af.viewport.isGatherViewsHere())
+              {
+                gatherToThisFrame.put(af.viewport.getSequenceSetId(), af);
+              }
+            }
           }
           entryCount++;
         }
         else if (jarentry != null)
         {
-          //Some other file here.
+          // Some other file here.
           entryCount++;
         }
       } while (jarentry != null);
@@ -1226,9 +2188,25 @@ public class Jalview2XML
               + ex + "\n");
     } catch (Exception ex)
     {
-      //Is Version 1 Jar file?
-      af = new Jalview2XML_V1().LoadJalviewAlign(file);
-
+      System.err.println("Parsing as Jalview Version 2 file failed.");
+      ex.printStackTrace(System.err);
+      if (attemptversion1parse)
+      {
+        // Is Version 1 Jar file?
+        try
+        {
+          af = new Jalview2XML_V1(raiseGUI).LoadJalviewAlign(jprovider);
+        } catch (Exception ex2)
+        {
+          System.err.println("Exception whilst loading as jalviewXMLV1:");
+          ex2.printStackTrace();
+          af = null;
+        }
+      }
+      if (Desktop.instance != null)
+      {
+        Desktop.instance.stopLoading();
+      }
       if (af != null)
       {
         System.out.println("Successfully loaded archive file");
@@ -1238,6 +2216,12 @@ public class Jalview2XML
 
       System.err.println("Exception whilst loading jalview XML file : "
               + ex + "\n");
+    } catch (OutOfMemoryError e)
+    {
+      // Don't use the OOM Window here
+      errorMessage = "Out of memory loading jalview XML file";
+      System.err.println("Out of memory whilst loading jalview XML file");
+      e.printStackTrace();
     }
 
     if (Desktop.instance != null)
@@ -1245,158 +2229,384 @@ public class Jalview2XML
       Desktop.instance.stopLoading();
     }
 
-    Enumeration en = gatherToThisFrame.elements();
-    while (en.hasMoreElements())
+    /*
+     * Regather multiple views (with the same sequence set id) to the frame (if
+     * any) that is flagged as the one to gather to, i.e. convert them to tabbed
+     * views instead of separate frames. Note this doesn't restore a state where
+     * some expanded views in turn have tabbed views - the last "first tab" read
+     * in will play the role of gatherer for all.
+     */
+    for (AlignFrame fr : gatherToThisFrame.values())
     {
-      Desktop.instance.gatherViews((AlignFrame) en.nextElement());
+      Desktop.instance.gatherViews(fr);
     }
 
+    restoreSplitFrames();
+
     if (errorMessage != null)
     {
-      final String finalErrorMessage = errorMessage;
-      javax.swing.SwingUtilities.invokeLater(new Runnable()
+      reportErrors();
+    }
+    return af;
+  }
+
+  /**
+   * Try to reconstruct and display SplitFrame windows, where each contains
+   * complementary dna and protein alignments. Done by pairing up AlignFrame
+   * objects (created earlier) which have complementary viewport ids associated.
+   */
+  protected void restoreSplitFrames()
+  {
+    List<SplitFrame> gatherTo = new ArrayList<SplitFrame>();
+    List<AlignFrame> addedToSplitFrames = new ArrayList<AlignFrame>();
+    Map<String, AlignFrame> dna = new HashMap<String, AlignFrame>();
+
+    /*
+     * Identify the DNA alignments
+     */
+    for (Entry<Viewport, AlignFrame> candidate : splitFrameCandidates
+            .entrySet())
+    {
+      AlignFrame af = candidate.getValue();
+      if (af.getViewport().getAlignment().isNucleotide())
+      {
+        dna.put(candidate.getKey().getId(), af);
+      }
+    }
+
+    /*
+     * Try to match up the protein complements
+     */
+    for (Entry<Viewport, AlignFrame> candidate : splitFrameCandidates
+            .entrySet())
+    {
+      AlignFrame af = candidate.getValue();
+      if (!af.getViewport().getAlignment().isNucleotide())
       {
-        public void run()
+        String complementId = candidate.getKey().getComplementId();
+        // only non-null complements should be in the Map
+        if (complementId != null && dna.containsKey(complementId))
         {
-          JOptionPane.showInternalMessageDialog(Desktop.desktop,
-                  finalErrorMessage, "Error loading Jalview file",
-                  JOptionPane.WARNING_MESSAGE);
+          final AlignFrame dnaFrame = dna.get(complementId);
+          SplitFrame sf = createSplitFrame(dnaFrame, af);
+          addedToSplitFrames.add(dnaFrame);
+          addedToSplitFrames.add(af);
+          if (af.viewport.isGatherViewsHere())
+          {
+            gatherTo.add(sf);
+          }
         }
-      });
+      }
     }
 
-    return af;
-  }
+    /*
+     * Open any that we failed to pair up (which shouldn't happen!) as
+     * standalone AlignFrame's.
+     */
+    for (Entry<Viewport, AlignFrame> candidate : splitFrameCandidates
+            .entrySet())
+    {
+      AlignFrame af = candidate.getValue();
+      if (!addedToSplitFrames.contains(af)) {
+        Viewport view = candidate.getKey();
+        Desktop.addInternalFrame(af, view.getTitle(), view.getWidth(),
+                view.getHeight());
+        System.err.println("Failed to restore view " + view.getTitle()
+                + " to split frame");
+      }
+    }
 
-  Hashtable alreadyLoadedPDB;
+    /*
+     * Gather back into tabbed views as flagged.
+     */
+    for (SplitFrame sf : gatherTo)
+    {
+      Desktop.instance.gatherViews(sf);
+    }
+
+    splitFrameCandidates.clear();
+  }
 
-  String loadPDBFile(String file, String pdbId)
+  /**
+   * Construct and display one SplitFrame holding DNA and protein alignments.
+   * 
+   * @param dnaFrame
+   * @param proteinFrame
+   * @return
+   */
+  protected SplitFrame createSplitFrame(AlignFrame dnaFrame,
+          AlignFrame proteinFrame)
   {
-    if (alreadyLoadedPDB == null)
-      alreadyLoadedPDB = new Hashtable();
+    SplitFrame splitFrame = new SplitFrame(dnaFrame, proteinFrame);
+    String title = MessageManager.getString("label.linked_view_title");
+    int width = (int) dnaFrame.getBounds().getWidth();
+    int height = (int) (dnaFrame.getBounds().getHeight()
+            + proteinFrame.getBounds().getHeight() + 50);
+    Desktop.addInternalFrame(splitFrame, title, width, height);
+
+    /*
+     * And compute cDNA consensus (couldn't do earlier with consensus as
+     * mappings were not yet present)
+     */
+    proteinFrame.viewport.alignmentChanged(proteinFrame.alignPanel);
+
+    return splitFrame;
+  }
 
-    if (alreadyLoadedPDB.containsKey(pdbId))
-      return alreadyLoadedPDB.get(pdbId).toString();
+  /**
+   * check errorMessage for a valid error message and raise an error box in the
+   * GUI or write the current errorMessage to stderr and then clear the error
+   * state.
+   */
+  protected void reportErrors()
+  {
+    reportErrors(false);
+  }
 
-    try
+  protected void reportErrors(final boolean saving)
+  {
+    if (errorMessage != null)
     {
-      JarInputStream jin = null;
-
-      if (file.startsWith("http://"))
+      final String finalErrorMessage = errorMessage;
+      if (raiseGUI)
       {
-        jin = new JarInputStream(new URL(file).openStream());
+        javax.swing.SwingUtilities.invokeLater(new Runnable()
+        {
+          @Override
+          public void run()
+          {
+            JOptionPane.showInternalMessageDialog(Desktop.desktop,
+                    finalErrorMessage, "Error "
+                            + (saving ? "saving" : "loading")
+                            + " Jalview file", JOptionPane.WARNING_MESSAGE);
+          }
+        });
       }
       else
       {
-        jin = new JarInputStream(new FileInputStream(file));
+        System.err.println("Problem loading Jalview file: " + errorMessage);
       }
+    }
+    errorMessage = null;
+  }
+
+  Map<String, String> alreadyLoadedPDB = new HashMap<String, String>();
+
+  /**
+   * when set, local views will be updated from view stored in JalviewXML
+   * Currently (28th Sep 2008) things will go horribly wrong in vamsas document
+   * sync if this is set to true.
+   */
+  private final boolean updateLocalViews = false;
+
+  /**
+   * Returns the path to a temporary file holding the PDB file for the given PDB
+   * id. The first time of asking, searches for a file of that name in the
+   * Jalview project jar, and copies it to a new temporary file. Any repeat
+   * requests just return the path to the file previously created.
+   * 
+   * @param jprovider
+   * @param pdbId
+   * @return
+   */
+  String loadPDBFile(jarInputStreamProvider jprovider, String pdbId)
+  {
+    if (alreadyLoadedPDB.containsKey(pdbId))
+    {
+      return alreadyLoadedPDB.get(pdbId).toString();
+    }
+
+    String tempFile = copyJarEntry(jprovider, pdbId, "jalview_pdb");
+    if (tempFile != null)
+    {
+      alreadyLoadedPDB.put(pdbId, tempFile);
+    }
+    return tempFile;
+  }
+
+  /**
+   * Copies the jar entry of given name to a new temporary file and returns the
+   * path to the file, or null if the entry is not found.
+   * 
+   * @param jprovider
+   * @param jarEntryName
+   * @param prefix
+   *          a prefix for the temporary file name, must be at least three
+   *          characters long
+   * @return
+   */
+  protected String copyJarEntry(jarInputStreamProvider jprovider,
+          String jarEntryName, String prefix)
+  {
+    BufferedReader in = null;
+    PrintWriter out = null;
+
+    try
+    {
+      JarInputStream jin = jprovider.getJarInputStream();
+      /*
+       * if (jprovider.startsWith("http://")) { jin = new JarInputStream(new
+       * URL(jprovider).openStream()); } else { jin = new JarInputStream(new
+       * FileInputStream(jprovider)); }
+       */
 
       JarEntry entry = null;
       do
       {
         entry = jin.getNextJarEntry();
-      } while (!entry.getName().equals(pdbId));
-
-      BufferedReader in = new BufferedReader(new InputStreamReader(jin));
-      File outFile = File.createTempFile("jalview_pdb", ".txt");
-      outFile.deleteOnExit();
-      PrintWriter out = new PrintWriter(new FileOutputStream(outFile));
-      String data;
+      } while (entry != null && !entry.getName().equals(jarEntryName));
+      if (entry != null)
+      {
+        in = new BufferedReader(new InputStreamReader(jin, UTF_8));
+        File outFile = File.createTempFile(prefix, ".tmp");
+        outFile.deleteOnExit();
+        out = new PrintWriter(new FileOutputStream(outFile));
+        String data;
 
-      while ((data = in.readLine()) != null)
+        while ((data = in.readLine()) != null)
+        {
+          out.println(data);
+        }
+        out.flush();
+        String t = outFile.getAbsolutePath();
+        return t;
+      }
+      else
       {
-        out.println(data);
+        warn("Couldn't find entry in Jalview Jar for " + jarEntryName);
       }
-      out.close();
-
-      alreadyLoadedPDB.put(pdbId, outFile.getAbsolutePath());
-      return outFile.getAbsolutePath();
-
     } catch (Exception ex)
     {
       ex.printStackTrace();
+    } finally
+    {
+      if (in != null)
+      {
+        try
+        {
+          in.close();
+        } catch (IOException e)
+        {
+          // ignore
+        }
+      }
+      if (out != null)
+      {
+        out.close();
+      }
     }
 
     return null;
   }
 
-  AlignFrame LoadFromObject(JalviewModel object, String file,
-          boolean loadTreesAndStructures)
+  private class JvAnnotRow
+  {
+    public JvAnnotRow(int i, AlignmentAnnotation jaa)
+    {
+      order = i;
+      template = jaa;
+    }
+
+    /**
+     * persisted version of annotation row from which to take vis properties
+     */
+    public jalview.datamodel.AlignmentAnnotation template;
+
+    /**
+     * original position of the annotation row in the alignment
+     */
+    public int order;
+  }
+
+  /**
+   * Load alignment frame from jalview XML DOM object
+   * 
+   * @param object
+   *          DOM
+   * @param file
+   *          filename source string
+   * @param loadTreesAndStructures
+   *          when false only create Viewport
+   * @param jprovider
+   *          data source provider
+   * @return alignment frame created from view stored in DOM
+   */
+  AlignFrame loadFromObject(JalviewModel object, String file,
+          boolean loadTreesAndStructures, jarInputStreamProvider jprovider)
   {
     SequenceSet vamsasSet = object.getVamsasModel().getSequenceSet(0);
     Sequence[] vamsasSeq = vamsasSet.getSequence();
 
     JalviewModelSequence jms = object.getJalviewModelSequence();
 
-    Viewport view = jms.getViewport(0);
+    Viewport view = (jms.getViewportCount() > 0) ? jms.getViewport(0)
+            : null;
 
-    //////////////////////////////////
-    //LOAD SEQUENCES
+    // ////////////////////////////////
+    // LOAD SEQUENCES
 
-    Vector hiddenSeqs = null;
+    List<SequenceI> hiddenSeqs = null;
     jalview.datamodel.Sequence jseq;
 
-    ArrayList tmpseqs = new ArrayList();
+    List<SequenceI> tmpseqs = new ArrayList<SequenceI>();
 
     boolean multipleView = false;
 
-    JSeq[] JSEQ = object.getJalviewModelSequence().getJSeq();
-    for (int i = 0; i < JSEQ.length; i++)
+    JSeq[] jseqs = object.getJalviewModelSequence().getJSeq();
+    int vi = 0; // counter in vamsasSeq array
+    for (int i = 0; i < jseqs.length; i++)
     {
-      String seqId = JSEQ[i].getId() + "";
+      String seqId = jseqs[i].getId();
 
       if (seqRefIds.get(seqId) != null)
       {
-        tmpseqs.add((jalview.datamodel.Sequence) seqRefIds.get(seqId));
+        tmpseqs.add(seqRefIds.get(seqId));
         multipleView = true;
       }
       else
       {
-        jseq = new jalview.datamodel.Sequence(vamsasSeq[i].getName(),
-                vamsasSeq[i].getSequence());
-        jseq.setDescription(vamsasSeq[i].getDescription());
-        jseq.setStart(JSEQ[i].getStart());
-        jseq.setEnd(JSEQ[i].getEnd());
+        jseq = new jalview.datamodel.Sequence(vamsasSeq[vi].getName(),
+                vamsasSeq[vi].getSequence());
+        jseq.setDescription(vamsasSeq[vi].getDescription());
+        jseq.setStart(jseqs[i].getStart());
+        jseq.setEnd(jseqs[i].getEnd());
         jseq.setVamsasId(uniqueSetSuffix + seqId);
-        seqRefIds.put(vamsasSeq[i].getId(), jseq);
+        seqRefIds.put(vamsasSeq[vi].getId(), jseq);
         tmpseqs.add(jseq);
+        vi++;
       }
 
-      if (JSEQ[i].getHidden())
+      if (jseqs[i].getHidden())
       {
         if (hiddenSeqs == null)
         {
-          hiddenSeqs = new Vector();
+          hiddenSeqs = new ArrayList<SequenceI>();
         }
 
-        hiddenSeqs.addElement((jalview.datamodel.Sequence) seqRefIds
-                .get(seqId));
+        hiddenSeqs.add(seqRefIds.get(seqId));
       }
 
     }
 
-    ///
+    // /
     // Create the alignment object from the sequence set
-    /////////////////////////////////
-    jalview.datamodel.Sequence[] orderedSeqs = new jalview.datamodel.Sequence[tmpseqs
-            .size()];
-
-    tmpseqs.toArray(orderedSeqs);
+    // ///////////////////////////////
+    SequenceI[] orderedSeqs = tmpseqs
+            .toArray(new SequenceI[tmpseqs.size()]);
 
-    jalview.datamodel.Alignment al = new jalview.datamodel.Alignment(
-            orderedSeqs);
+    Alignment al = new Alignment(orderedSeqs);
 
-    /// Add the alignment properties
+    // / Add the alignment properties
     for (int i = 0; i < vamsasSet.getSequenceSetPropertiesCount(); i++)
     {
       SequenceSetProperties ssp = vamsasSet.getSequenceSetProperties(i);
       al.setProperty(ssp.getKey(), ssp.getValue());
     }
 
-    ///
+    // /
     // SequenceFeatures are added to the DatasetSequence,
     // so we must create or recover the dataset before loading features
-    /////////////////////////////////
+    // ///////////////////////////////
     if (vamsasSet.getDatasetId() == null || vamsasSet.getDatasetId() == "")
     {
       // older jalview projects do not have a dataset id.
@@ -1404,18 +2614,23 @@ public class Jalview2XML
     }
     else
     {
-      recoverDatasetFor(vamsasSet, al);
+      // recover dataset - passing on flag indicating if this a 'viewless'
+      // sequence set (a.k.a. a stored dataset for the project)
+      recoverDatasetFor(vamsasSet, al, object.getJalviewModelSequence()
+              .getViewportCount() == 0);
     }
-    /////////////////////////////////
+    // ///////////////////////////////
 
-    Hashtable pdbloaded = new Hashtable();
+    Hashtable pdbloaded = new Hashtable(); // TODO nothing writes to this??
     if (!multipleView)
     {
+      // load sequence features, database references and any associated PDB
+      // structures for the alignment
       for (int i = 0; i < vamsasSeq.length; i++)
       {
-        if (JSEQ[i].getFeaturesCount() > 0)
+        if (jseqs[i].getFeaturesCount() > 0)
         {
-          Features[] features = JSEQ[i].getFeatures();
+          Features[] features = jseqs[i].getFeatures();
           for (int f = 0; f < features.length; f++)
           {
             jalview.datamodel.SequenceFeature sf = new jalview.datamodel.SequenceFeature(
@@ -1445,80 +2660,90 @@ public class Jalview2XML
         {
           addDBRefs(al.getSequenceAt(i).getDatasetSequence(), vamsasSeq[i]);
         }
-        if (JSEQ[i].getPdbidsCount() > 0)
+        if (jseqs[i].getPdbidsCount() > 0)
         {
-          Pdbids[] ids = JSEQ[i].getPdbids();
+          Pdbids[] ids = jseqs[i].getPdbids();
           for (int p = 0; p < ids.length; p++)
           {
             jalview.datamodel.PDBEntry entry = new jalview.datamodel.PDBEntry();
             entry.setId(ids[p].getId());
-            entry.setType(ids[p].getType());
+            if (ids[p].getType() != null)
+            {
+              if (ids[p].getType().equalsIgnoreCase("PDB"))
+              {
+                entry.setType(PDBEntry.Type.PDB);
+              }
+              else
+              {
+                entry.setType(PDBEntry.Type.FILE);
+              }
+            }
             if (ids[p].getFile() != null)
             {
               if (!pdbloaded.containsKey(ids[p].getFile()))
               {
-                entry.setFile(loadPDBFile(file, ids[p].getId()));
+                entry.setFile(loadPDBFile(jprovider, ids[p].getId()));
               }
               else
               {
                 entry.setFile(pdbloaded.get(ids[p].getId()).toString());
               }
             }
-
+            StructureSelectionManager.getStructureSelectionManager(
+                    Desktop.instance).registerPDBEntry(entry);
             al.getSequenceAt(i).getDatasetSequence().addPDBId(entry);
           }
         }
       }
-    }
+    } // end !multipleview
 
-    /////////////////////////////////
+    // ///////////////////////////////
     // LOAD SEQUENCE MAPPINGS
+
     if (vamsasSet.getAlcodonFrameCount() > 0)
     {
+      // TODO Potentially this should only be done once for all views of an
+      // alignment
       AlcodonFrame[] alc = vamsasSet.getAlcodonFrame();
       for (int i = 0; i < alc.length; i++)
       {
-        jalview.datamodel.AlignedCodonFrame cf = new jalview.datamodel.AlignedCodonFrame(
-                alc[i].getAlcodonCount());
-        if (alc[i].getAlcodonCount() > 0)
-        {
-          Alcodon[] alcods = alc[i].getAlcodon();
-          for (int p = 0; p < cf.codons.length; p++)
-          {
-            cf.codons[p] = new int[3];
-            cf.codons[p][0] = (int) alcods[p].getPos1();
-            cf.codons[p][1] = (int) alcods[p].getPos2();
-            cf.codons[p][2] = (int) alcods[p].getPos3();
-          }
-        }
+        AlignedCodonFrame cf = new AlignedCodonFrame();
         if (alc[i].getAlcodMapCount() > 0)
         {
           AlcodMap[] maps = alc[i].getAlcodMap();
           for (int m = 0; m < maps.length; m++)
           {
-            SequenceI dnaseq = (SequenceI) seqRefIds
-                    .get(maps[m].getDnasq());
+            SequenceI dnaseq = seqRefIds.get(maps[m].getDnasq());
             // Load Mapping
+            jalview.datamodel.Mapping mapping = null;
             // attach to dna sequence reference.
+            if (maps[m].getMapping() != null)
+            {
+              mapping = addMapping(maps[m].getMapping());
+            }
             if (dnaseq != null)
             {
-              if (maps[m].getMapping() != null)
-              {
-                jalview.datamodel.Mapping mapping = addMapping(maps[m]
-                        .getMapping());
-                cf.addMap(dnaseq, mapping.getTo(), mapping.getMap());
-              }
+              cf.addMap(dnaseq, mapping.getTo(), mapping.getMap());
+            }
+            else
+            {
+              // defer to later
+              frefedSequence.add(new Object[]
+              { maps[m].getDnasq(), cf, mapping });
             }
           }
         }
         al.addCodonFrame(cf);
       }
-
     }
 
-    //////////////////////////////////
-    //LOAD ANNOTATIONS
-    boolean hideQuality = true, hideConservation = true, hideConsensus = true;
+    // ////////////////////////////////
+    // LOAD ANNOTATIONS
+    List<JvAnnotRow> autoAlan = new ArrayList<JvAnnotRow>();
+    /**
+     * store any annotations which forward reference a group's ID
+     */
+    Hashtable<String, ArrayList<jalview.datamodel.AlignmentAnnotation>> groupAnnotRefs = new Hashtable<String, ArrayList<jalview.datamodel.AlignmentAnnotation>>();
 
     if (vamsasSet.getAnnotationCount() > 0)
     {
@@ -1526,69 +2751,99 @@ public class Jalview2XML
 
       for (int i = 0; i < an.length; i++)
       {
-        if (an[i].getLabel().equals("Quality"))
-        {
-          hideQuality = false;
-          continue;
-        }
-        else if (an[i].getLabel().equals("Conservation"))
+        /**
+         * test if annotation is automatically calculated for this view only
+         */
+        boolean autoForView = false;
+        if (an[i].getLabel().equals("Quality")
+                || an[i].getLabel().equals("Conservation")
+                || an[i].getLabel().equals("Consensus"))
         {
-          hideConservation = false;
-          continue;
+          // Kludge for pre 2.5 projects which lacked the autocalculated flag
+          autoForView = true;
+          if (!an[i].hasAutoCalculated())
+          {
+            an[i].setAutoCalculated(true);
+          }
         }
-        else if (an[i].getLabel().equals("Consensus"))
+        if (autoForView
+                || (an[i].hasAutoCalculated() && an[i].isAutoCalculated()))
         {
-          hideConsensus = false;
-          continue;
+          // remove ID - we don't recover annotation from other views for
+          // view-specific annotation
+          an[i].setId(null);
         }
 
+        // set visiblity for other annotation in this view
         if (an[i].getId() != null
                 && annotationIds.containsKey(an[i].getId()))
         {
-          jalview.datamodel.AlignmentAnnotation jda = (jalview.datamodel.AlignmentAnnotation) annotationIds
-                  .get(an[i].getId());
+          AlignmentAnnotation jda = annotationIds.get(an[i].getId());
+          // in principle Visible should always be true for annotation displayed
+          // in multiple views
           if (an[i].hasVisible())
+          {
             jda.visible = an[i].getVisible();
+          }
 
           al.addAnnotation(jda);
 
           continue;
         }
-
+        // Construct new annotation from model.
         AnnotationElement[] ae = an[i].getAnnotationElement();
         jalview.datamodel.Annotation[] anot = null;
-
+        java.awt.Color firstColour = null;
+        int anpos;
         if (!an[i].getScoreOnly())
         {
           anot = new jalview.datamodel.Annotation[al.getWidth()];
-
           for (int aa = 0; aa < ae.length && aa < anot.length; aa++)
           {
-            if (ae[aa].getPosition() >= anot.length)
+            anpos = ae[aa].getPosition();
+
+            if (anpos >= anot.length)
+            {
               continue;
+            }
 
-            anot[ae[aa].getPosition()] = new jalview.datamodel.Annotation(
+            anot[anpos] = new jalview.datamodel.Annotation(
 
-            ae[aa].getDisplayCharacter(), ae[aa].getDescription(), (ae[aa]
-                    .getSecondaryStructure() == null || ae[aa]
-                    .getSecondaryStructure().length() == 0) ? ' ' : ae[aa]
-                    .getSecondaryStructure().charAt(0), ae[aa].getValue()
+            ae[aa].getDisplayCharacter(), ae[aa].getDescription(),
+                    (ae[aa].getSecondaryStructure() == null || ae[aa]
+                            .getSecondaryStructure().length() == 0) ? ' '
+                            : ae[aa].getSecondaryStructure().charAt(0),
+                    ae[aa].getValue()
 
             );
-
-            anot[ae[aa].getPosition()].colour = new java.awt.Color(ae[aa]
-                    .getColour());
+            // JBPNote: Consider verifying dataflow for IO of secondary
+            // structure annotation read from Stockholm files
+            // this was added to try to ensure that
+            // if (anot[ae[aa].getPosition()].secondaryStructure>' ')
+            // {
+            // anot[ae[aa].getPosition()].displayCharacter = "";
+            // }
+            anot[anpos].colour = new java.awt.Color(ae[aa].getColour());
+            if (firstColour == null)
+            {
+              firstColour = anot[anpos].colour;
+            }
           }
         }
         jalview.datamodel.AlignmentAnnotation jaa = null;
 
         if (an[i].getGraph())
         {
+          float llim = 0, hlim = 0;
+          // if (autoForView || an[i].isAutoCalculated()) {
+          // hlim=11f;
+          // }
           jaa = new jalview.datamodel.AlignmentAnnotation(an[i].getLabel(),
-                  an[i].getDescription(), anot, 0, 0, an[i].getGraphType());
+                  an[i].getDescription(), anot, llim, hlim,
+                  an[i].getGraphType());
 
           jaa.graphGroup = an[i].getGraphGroup();
-
+          jaa._linecolour = firstColour;
           if (an[i].getThresholdLine() != null)
           {
             jaa.setThreshold(new jalview.datamodel.GraphLine(an[i]
@@ -1597,20 +2852,26 @@ public class Jalview2XML
                     an[i].getThresholdLine().getColour())));
 
           }
-
+          if (autoForView || an[i].isAutoCalculated())
+          {
+            // Hardwire the symbol display line to ensure that labels for
+            // histograms are displayed
+            jaa.hasText = true;
+          }
         }
         else
         {
           jaa = new jalview.datamodel.AlignmentAnnotation(an[i].getLabel(),
                   an[i].getDescription(), anot);
+          jaa._linecolour = firstColour;
         }
-
+        // register new annotation
         if (an[i].getId() != null)
         {
           annotationIds.put(an[i].getId(), jaa);
           jaa.annotationId = an[i].getId();
         }
-
+        // recover sequence association
         if (an[i].getSequenceRef() != null)
         {
           if (al.findName(an[i].getSequenceRef()) != null)
@@ -1620,24 +2881,81 @@ public class Jalview2XML
             al.findName(an[i].getSequenceRef()).addAlignmentAnnotation(jaa);
           }
         }
+        // and make a note of any group association
+        if (an[i].getGroupRef() != null && an[i].getGroupRef().length() > 0)
+        {
+          ArrayList<jalview.datamodel.AlignmentAnnotation> aal = groupAnnotRefs
+                  .get(an[i].getGroupRef());
+          if (aal == null)
+          {
+            aal = new ArrayList<jalview.datamodel.AlignmentAnnotation>();
+            groupAnnotRefs.put(an[i].getGroupRef(), aal);
+          }
+          aal.add(jaa);
+        }
+
         if (an[i].hasScore())
         {
           jaa.setScore(an[i].getScore());
         }
-
         if (an[i].hasVisible())
+        {
           jaa.visible = an[i].getVisible();
+        }
+
+        if (an[i].hasCentreColLabels())
+        {
+          jaa.centreColLabels = an[i].getCentreColLabels();
+        }
 
-        al.addAnnotation(jaa);
+        if (an[i].hasScaleColLabels())
+        {
+          jaa.scaleColLabel = an[i].getScaleColLabels();
+        }
+        if (an[i].hasAutoCalculated() && an[i].isAutoCalculated())
+        {
+          // newer files have an 'autoCalculated' flag and store calculation
+          // state in viewport properties
+          jaa.autoCalculated = true; // means annotation will be marked for
+          // update at end of load.
+        }
+        if (an[i].hasGraphHeight())
+        {
+          jaa.graphHeight = an[i].getGraphHeight();
+        }
+        if (an[i].hasBelowAlignment())
+        {
+          jaa.belowAlignment = an[i].isBelowAlignment();
+        }
+        jaa.setCalcId(an[i].getCalcId());
+        if (an[i].getPropertyCount() > 0)
+        {
+          for (jalview.schemabinding.version2.Property prop : an[i]
+                  .getProperty())
+          {
+            jaa.setProperty(prop.getName(), prop.getValue());
+          }
+        }
+        if (jaa.autoCalculated)
+        {
+          autoAlan.add(new JvAnnotRow(i, jaa));
+        }
+        else
+        // if (!autoForView)
+        {
+          // add autocalculated group annotation and any user created annotation
+          // for the view
+          al.addAnnotation(jaa);
+        }
       }
     }
-
-    /////////////////////////
-    //LOAD GROUPS
+    // ///////////////////////
+    // LOAD GROUPS
+    // Create alignment markup and styles for this view
     if (jms.getJGroupCount() > 0)
     {
       JGroup[] groups = jms.getJGroup();
-
+      boolean addAnnotSchemeGroup = false;
       for (int i = 0; i < groups.length; i++)
       {
         ColourSchemeI cs = null;
@@ -1646,7 +2964,13 @@ public class Jalview2XML
         {
           if (groups[i].getColour().startsWith("ucs"))
           {
-            cs = GetUserColourScheme(jms, groups[i].getColour());
+            cs = getUserColourScheme(jms, groups[i].getColour());
+          }
+          else if (groups[i].getColour().equals("AnnotationColourGradient")
+                  && groups[i].getAnnotationColours() != null)
+          {
+            addAnnotSchemeGroup = true;
+            cs = null;
           }
           else
           {
@@ -1664,8 +2988,7 @@ public class Jalview2XML
         for (int s = 0; s < groups[i].getSeqCount(); s++)
         {
           String seqId = groups[i].getSeq(s) + "";
-          jalview.datamodel.SequenceI ts = (jalview.datamodel.SequenceI) seqRefIds
-                  .get(seqId);
+          jalview.datamodel.SequenceI ts = seqRefIds.get(seqId);
 
           if (ts != null)
           {
@@ -1683,122 +3006,937 @@ public class Jalview2XML
                 groups[i].getDisplayText(), groups[i].getColourText(),
                 groups[i].getStart(), groups[i].getEnd());
 
-        sg
-                .setOutlineColour(new java.awt.Color(groups[i]
-                        .getOutlineColour()));
+        sg.setOutlineColour(new java.awt.Color(groups[i].getOutlineColour()));
 
         sg.textColour = new java.awt.Color(groups[i].getTextCol1());
         sg.textColour2 = new java.awt.Color(groups[i].getTextCol2());
+        sg.setShowNonconserved(groups[i].hasShowUnconserved() ? groups[i]
+                .isShowUnconserved() : false);
         sg.thresholdTextColour = groups[i].getTextColThreshold();
-
+        if (groups[i].hasShowConsensusHistogram())
+        {
+          sg.setShowConsensusHistogram(groups[i].isShowConsensusHistogram());
+        }
+        ;
+        if (groups[i].hasShowSequenceLogo())
+        {
+          sg.setshowSequenceLogo(groups[i].isShowSequenceLogo());
+        }
+        if (groups[i].hasNormaliseSequenceLogo())
+        {
+          sg.setNormaliseSequenceLogo(groups[i].isNormaliseSequenceLogo());
+        }
+        if (groups[i].hasIgnoreGapsinConsensus())
+        {
+          sg.setIgnoreGapsConsensus(groups[i].getIgnoreGapsinConsensus());
+        }
         if (groups[i].getConsThreshold() != 0)
         {
           jalview.analysis.Conservation c = new jalview.analysis.Conservation(
-                  "All", ResidueProperties.propHash, 3, sg
-                          .getSequences(null), 0, sg.getWidth() - 1);
+                  "All", ResidueProperties.propHash, 3,
+                  sg.getSequences(null), 0, sg.getWidth() - 1);
           c.calculate();
           c.verdict(false, 25);
           sg.cs.setConservation(c);
         }
 
-        al.addGroup(sg);
-      }
-    }
-
-    /////////////////////////////////
-    // LOAD VIEWPORT
-
-    AlignFrame af = new AlignFrame(al, view.getWidth(), view.getHeight());
-
-    af.setFileName(file, "Jalview");
-
-    for (int i = 0; i < JSEQ.length; i++)
+        if (groups[i].getId() != null && groupAnnotRefs.size() > 0)
+        {
+          // re-instate unique group/annotation row reference
+          ArrayList<jalview.datamodel.AlignmentAnnotation> jaal = groupAnnotRefs
+                  .get(groups[i].getId());
+          if (jaal != null)
+          {
+            for (jalview.datamodel.AlignmentAnnotation jaa : jaal)
+            {
+              jaa.groupRef = sg;
+              if (jaa.autoCalculated)
+              {
+                // match up and try to set group autocalc alignment row for this
+                // annotation
+                if (jaa.label.startsWith("Consensus for "))
+                {
+                  sg.setConsensus(jaa);
+                }
+                // match up and try to set group autocalc alignment row for this
+                // annotation
+                if (jaa.label.startsWith("Conservation for "))
+                {
+                  sg.setConservationRow(jaa);
+                }
+              }
+            }
+          }
+        }
+        al.addGroup(sg);
+        if (addAnnotSchemeGroup)
+        {
+          // reconstruct the annotation colourscheme
+          sg.cs = constructAnnotationColour(
+                  groups[i].getAnnotationColours(), null, al, jms, false);
+        }
+      }
+    }
+    if (view == null)
     {
-      af.viewport.setSequenceColour(af.viewport.alignment.getSequenceAt(i),
-              new java.awt.Color(JSEQ[i].getColour()));
+      // only dataset in this model, so just return.
+      return null;
     }
+    // ///////////////////////////////
+    // LOAD VIEWPORT
 
-    //If we just load in the same jar file again, the sequenceSetId
-    //will be the same, and we end up with multiple references
-    //to the same sequenceSet. We must modify this id on load
-    //so that each load of the file gives a unique id
+    // If we just load in the same jar file again, the sequenceSetId
+    // will be the same, and we end up with multiple references
+    // to the same sequenceSet. We must modify this id on load
+    // so that each load of the file gives a unique id
     String uniqueSeqSetId = view.getSequenceSetId() + uniqueSetSuffix;
+    String viewId = (view.getId() == null ? null : view.getId()
+            + uniqueSetSuffix);
+    AlignFrame af = null;
+    AlignViewport av = null;
+    // now check to see if we really need to create a new viewport.
+    if (multipleView && viewportsAdded.size() == 0)
+    {
+      // We recovered an alignment for which a viewport already exists.
+      // TODO: fix up any settings necessary for overlaying stored state onto
+      // state recovered from another document. (may not be necessary).
+      // we may need a binding from a viewport in memory to one recovered from
+      // XML.
+      // and then recover its containing af to allow the settings to be applied.
+      // TODO: fix for vamsas demo
+      System.err
+              .println("About to recover a viewport for existing alignment: Sequence set ID is "
+                      + uniqueSeqSetId);
+      Object seqsetobj = retrieveExistingObj(uniqueSeqSetId);
+      if (seqsetobj != null)
+      {
+        if (seqsetobj instanceof String)
+        {
+          uniqueSeqSetId = (String) seqsetobj;
+          System.err
+                  .println("Recovered extant sequence set ID mapping for ID : New Sequence set ID is "
+                          + uniqueSeqSetId);
+        }
+        else
+        {
+          System.err
+                  .println("Warning : Collision between sequence set ID string and existing jalview object mapping.");
+        }
 
-    af.viewport.gatherViewsHere = view.getGatheredViews();
+      }
+    }
+    /**
+     * indicate that annotation colours are applied across all groups (pre
+     * Jalview 2.8.1 behaviour)
+     */
+    boolean doGroupAnnColour = isVersionStringLaterThan("2.8.1",
+            object.getVersion());
+
+    AlignmentPanel ap = null;
+    boolean isnewview = true;
+    if (viewId != null)
+    {
+      // Check to see if this alignment already has a view id == viewId
+      jalview.gui.AlignmentPanel views[] = Desktop
+              .getAlignmentPanels(uniqueSeqSetId);
+      if (views != null && views.length > 0)
+      {
+        for (int v = 0; v < views.length; v++)
+        {
+          if (views[v].av.getViewId().equalsIgnoreCase(viewId))
+          {
+            // recover the existing alignpanel, alignframe, viewport
+            af = views[v].alignFrame;
+            av = views[v].av;
+            ap = views[v];
+            // TODO: could even skip resetting view settings if we don't want to
+            // change the local settings from other jalview processes
+            isnewview = false;
+          }
+        }
+      }
+    }
 
-    if (view.getSequenceSetId() != null)
+    if (isnewview)
     {
-      jalview.gui.AlignViewport av = (jalview.gui.AlignViewport) viewportsAdded
-              .get(uniqueSeqSetId);
+      af = loadViewport(file, jseqs, hiddenSeqs, al, jms, view,
+              uniqueSeqSetId, viewId, autoAlan);
+      av = af.viewport;
+      ap = af.alignPanel;
+    }
+    // LOAD TREES
+    // /////////////////////////////////////
+    if (loadTreesAndStructures && jms.getTreeCount() > 0)
+    {
+      try
+      {
+        for (int t = 0; t < jms.getTreeCount(); t++)
+        {
 
-      af.viewport.sequenceSetID = uniqueSeqSetId;
-      if (av != null)
+          Tree tree = jms.getTree(t);
+
+          TreePanel tp = (TreePanel) retrieveExistingObj(tree.getId());
+          if (tp == null)
+          {
+            tp = af.ShowNewickTree(
+                    new jalview.io.NewickFile(tree.getNewick()),
+                    tree.getTitle(), tree.getWidth(), tree.getHeight(),
+                    tree.getXpos(), tree.getYpos());
+            if (tree.getId() != null)
+            {
+              // perhaps bind the tree id to something ?
+            }
+          }
+          else
+          {
+            // update local tree attributes ?
+            // TODO: should check if tp has been manipulated by user - if so its
+            // settings shouldn't be modified
+            tp.setTitle(tree.getTitle());
+            tp.setBounds(new Rectangle(tree.getXpos(), tree.getYpos(), tree
+                    .getWidth(), tree.getHeight()));
+            tp.av = av; // af.viewport; // TODO: verify 'associate with all
+            // views'
+            // works still
+            tp.treeCanvas.av = av; // af.viewport;
+            tp.treeCanvas.ap = ap; // af.alignPanel;
+
+          }
+          if (tp == null)
+          {
+            warn("There was a problem recovering stored Newick tree: \n"
+                    + tree.getNewick());
+            continue;
+          }
+
+          tp.fitToWindow.setState(tree.getFitToWindow());
+          tp.fitToWindow_actionPerformed(null);
+
+          if (tree.getFontName() != null)
+          {
+            tp.setTreeFont(new java.awt.Font(tree.getFontName(), tree
+                    .getFontStyle(), tree.getFontSize()));
+          }
+          else
+          {
+            tp.setTreeFont(new java.awt.Font(view.getFontName(), view
+                    .getFontStyle(), tree.getFontSize()));
+          }
+
+          tp.showPlaceholders(tree.getMarkUnlinked());
+          tp.showBootstrap(tree.getShowBootstrap());
+          tp.showDistances(tree.getShowDistances());
+
+          tp.treeCanvas.threshold = tree.getThreshold();
+
+          if (tree.getCurrentTree())
+          {
+            af.viewport.setCurrentTree(tp.getTree());
+          }
+        }
+
+      } catch (Exception ex)
+      {
+        ex.printStackTrace();
+      }
+    }
+
+    // //LOAD STRUCTURES
+    if (loadTreesAndStructures)
+    {
+      loadStructures(jprovider, jseqs, af, ap);
+    }
+    // and finally return.
+    return af;
+  }
+
+  /**
+   * Load and link any saved structure viewers.
+   * 
+   * @param jprovider
+   * @param jseqs
+   * @param af
+   * @param ap
+   */
+  protected void loadStructures(jarInputStreamProvider jprovider,
+          JSeq[] jseqs, AlignFrame af, AlignmentPanel ap)
+  {
+    /*
+     * Run through all PDB ids on the alignment, and collect mappings between
+     * distinct view ids and all sequences referring to that view.
+     */
+    Map<String, StructureViewerModel> structureViewers = new LinkedHashMap<String, StructureViewerModel>();
+
+    for (int i = 0; i < jseqs.length; i++)
+    {
+      if (jseqs[i].getPdbidsCount() > 0)
       {
+        Pdbids[] ids = jseqs[i].getPdbids();
+        for (int p = 0; p < ids.length; p++)
+        {
+          final int structureStateCount = ids[p].getStructureStateCount();
+          for (int s = 0; s < structureStateCount; s++)
+          {
+            // check to see if we haven't already created this structure view
+            final StructureState structureState = ids[p]
+                    .getStructureState(s);
+            String sviewid = (structureState.getViewId() == null) ? null
+                    : structureState.getViewId() + uniqueSetSuffix;
+            jalview.datamodel.PDBEntry jpdb = new jalview.datamodel.PDBEntry();
+            // Originally : ids[p].getFile()
+            // : TODO: verify external PDB file recovery still works in normal
+            // jalview project load
+            jpdb.setFile(loadPDBFile(jprovider, ids[p].getId()));
+            jpdb.setId(ids[p].getId());
+
+            int x = structureState.getXpos();
+            int y = structureState.getYpos();
+            int width = structureState.getWidth();
+            int height = structureState.getHeight();
+
+            // Probably don't need to do this anymore...
+            // Desktop.desktop.getComponentAt(x, y);
+            // TODO: NOW: check that this recovers the PDB file correctly.
+            String pdbFile = loadPDBFile(jprovider, ids[p].getId());
+            jalview.datamodel.SequenceI seq = seqRefIds.get(jseqs[i]
+                    .getId() + "");
+            if (sviewid == null)
+            {
+              sviewid = "_jalview_pre2_4_" + x + "," + y + "," + width
+                      + "," + height;
+            }
+            if (!structureViewers.containsKey(sviewid))
+            {
+              structureViewers.put(sviewid,
+                      new StructureViewerModel(x, y, width, height, false,
+                              false, true, structureState.getViewId(),
+                              structureState.getType()));
+              // Legacy pre-2.7 conversion JAL-823 :
+              // do not assume any view has to be linked for colour by
+              // sequence
+            }
 
-        af.viewport.historyList = av.historyList;
-        af.viewport.redoList = av.redoList;
+            // assemble String[] { pdb files }, String[] { id for each
+            // file }, orig_fileloc, SequenceI[][] {{ seqs_file 1 }, {
+            // seqs_file 2}, boolean[] {
+            // linkAlignPanel,superposeWithAlignpanel}} from hash
+            StructureViewerModel jmoldat = structureViewers.get(sviewid);
+            jmoldat.setAlignWithPanel(jmoldat.isAlignWithPanel()
+                    | (structureState.hasAlignwithAlignPanel() ? structureState
+                            .getAlignwithAlignPanel() : false));
+
+            /*
+             * Default colour by linked panel to false if not specified (e.g.
+             * for pre-2.7 projects)
+             */
+            boolean colourWithAlignPanel = jmoldat.isColourWithAlignPanel();
+            colourWithAlignPanel |= (structureState
+                    .hasColourwithAlignPanel() ? structureState
+                    .getColourwithAlignPanel() : false);
+            jmoldat.setColourWithAlignPanel(colourWithAlignPanel);
+
+            /*
+             * Default colour by viewer to true if not specified (e.g. for
+             * pre-2.7 projects)
+             */
+            boolean colourByViewer = jmoldat.isColourByViewer();
+            colourByViewer &= structureState.hasColourByJmol() ? structureState
+                    .getColourByJmol() : true;
+            jmoldat.setColourByViewer(colourByViewer);
+
+            if (jmoldat.getStateData().length() < structureState
+                    .getContent().length())
+            {
+              {
+                jmoldat.setStateData(structureState.getContent());
+              }
+            }
+            if (ids[p].getFile() != null)
+            {
+              File mapkey = new File(ids[p].getFile());
+              StructureData seqstrmaps = jmoldat.getFileData().get(mapkey);
+              if (seqstrmaps == null)
+              {
+                jmoldat.getFileData().put(
+                        mapkey,
+                        seqstrmaps = jmoldat.new StructureData(pdbFile,
+                                ids[p].getId()));
+              }
+              if (!seqstrmaps.getSeqList().contains(seq))
+              {
+                seqstrmaps.getSeqList().add(seq);
+                // TODO and chains?
+              }
+            }
+            else
+            {
+              errorMessage = ("The Jmol views in this project were imported\nfrom an older version of Jalview.\nPlease review the sequence colour associations\nin the Colour by section of the Jmol View menu.\n\nIn the case of problems, see note at\nhttp://issues.jalview.org/browse/JAL-747");
+              warn(errorMessage);
+            }
+          }
+        }
       }
-      else
+    }
+    // Instantiate the associated structure views
+    for (Entry<String, StructureViewerModel> entry : structureViewers
+            .entrySet())
+    {
+      try
       {
-        viewportsAdded.put(uniqueSeqSetId, af.viewport);
+        createOrLinkStructureViewer(entry, af, ap, jprovider);
+      } catch (Exception e)
+      {
+        System.err.println("Error loading structure viewer: "
+                + e.getMessage());
+        // failed - try the next one
       }
+    }
+  }
 
-      PaintRefresher.Register(af.alignPanel, uniqueSeqSetId);
+  /**
+   * 
+   * @param viewerData
+   * @param af
+   * @param ap
+   * @param jprovider
+   */
+  protected void createOrLinkStructureViewer(
+          Entry<String, StructureViewerModel> viewerData, AlignFrame af,
+          AlignmentPanel ap, jarInputStreamProvider jprovider)
+  {
+    final StructureViewerModel stateData = viewerData.getValue();
+
+    /*
+     * Search for any viewer windows already open from other alignment views
+     * that exactly match the stored structure state
+     */
+    StructureViewerBase comp = findMatchingViewer(viewerData);
+
+    if (comp != null)
+    {
+      linkStructureViewer(ap, comp, stateData);
+      return;
     }
-    if (hiddenSeqs != null)
+
+    /*
+     * From 2.9: stateData.type contains JMOL or CHIMERA, data is in jar entry
+     * "viewer_"+stateData.viewId
+     */
+    if (ViewerType.CHIMERA.toString().equals(stateData.getType()))
     {
-      for (int s = 0; s < JSEQ.length; s++)
+      createChimeraViewer(viewerData, af, jprovider);
+    }
+    else
+    {
+      /*
+       * else Jmol (if pre-2.9, stateData contains JMOL state string)
+       */
+      createJmolViewer(viewerData, af, jprovider);
+    }
+  }
+
+  /**
+   * Create a new Chimera viewer.
+   * 
+   * @param data
+   * @param af
+   * @param jprovider
+   */
+  protected void createChimeraViewer(Entry<String, StructureViewerModel> viewerData,
+          AlignFrame af,
+          jarInputStreamProvider jprovider)
+  {
+    StructureViewerModel data = viewerData.getValue();
+    String chimeraSessionFile =  data.getStateData();
+
+    /*
+     * Copy Chimera session from jar entry "viewer_"+viewId to a temporary file
+     * 
+     * Note this is the 'saved' viewId as in the project file XML, _not_ the
+     * 'uniquified' sviewid used to reconstruct the viewer here
+     */
+    chimeraSessionFile = copyJarEntry(jprovider,
+            getViewerJarEntryName(data.getViewId()), "chimera");
+
+    Set<Entry<File, StructureData>> fileData = data.getFileData()
+            .entrySet();
+    List<PDBEntry> pdbs = new ArrayList<PDBEntry>();
+    List<SequenceI[]> allseqs = new ArrayList<SequenceI[]>();
+    for (Entry<File, StructureData> pdb : fileData)
+    {
+      String filePath = pdb.getValue().getFilePath();
+      String pdbId = pdb.getValue().getPdbId();
+      // pdbs.add(new PDBEntry(filePath, pdbId));
+      pdbs.add(new PDBEntry(pdbId, null, PDBEntry.Type.PDB, filePath));
+      final List<SequenceI> seqList = pdb.getValue().getSeqList();
+      SequenceI[] seqs = seqList.toArray(new SequenceI[seqList.size()]);
+      allseqs.add(seqs);
+    }
+
+    boolean colourByChimera = data.isColourByViewer();
+    boolean colourBySequence = data.isColourWithAlignPanel();
+
+    // TODO use StructureViewer as a factory here, see JAL-1761
+    final PDBEntry[] pdbArray = pdbs.toArray(new PDBEntry[pdbs.size()]);
+    final SequenceI[][] seqsArray = allseqs.toArray(new SequenceI[allseqs
+            .size()][]);
+    String newViewId = viewerData.getKey();
+    new ChimeraViewFrame(chimeraSessionFile, af.alignPanel, pdbArray,
+            seqsArray, colourByChimera, colourBySequence, newViewId);
+  }
+
+  /**
+   * Create a new Jmol window. First parse the Jmol state to translate filenames
+   * loaded into the view, and record the order in which files are shown in the
+   * Jmol view, so we can add the sequence mappings in same order.
+   * 
+   * @param viewerData
+   * @param af
+   * @param jprovider
+   */
+  protected void createJmolViewer(
+          final Entry<String, StructureViewerModel> viewerData,
+          AlignFrame af, jarInputStreamProvider jprovider)
+  {
+    final StructureViewerModel svattrib = viewerData.getValue();
+    String state = svattrib.getStateData();
+
+    /*
+     * Pre-2.9: state element value is the Jmol state string
+     * 
+     * 2.9+: @type is "JMOL", state data is in a Jar file member named "viewer_"
+     * + viewId
+     */
+    if (ViewerType.JMOL.toString().equals(svattrib.getType()))
+    {
+      state = readJarEntry(jprovider,
+              getViewerJarEntryName(svattrib.getViewId()));
+    }
+
+    List<String> pdbfilenames = new ArrayList<String>();
+    List<SequenceI[]> seqmaps = new ArrayList<SequenceI[]>();
+    List<String> pdbids = new ArrayList<String>();
+    StringBuilder newFileLoc = new StringBuilder(64);
+    int cp = 0, ncp, ecp;
+    Map<File, StructureData> oldFiles = svattrib.getFileData();
+    while ((ncp = state.indexOf("load ", cp)) > -1)
+    {
+      do
       {
-        jalview.datamodel.SequenceGroup hidden = new jalview.datamodel.SequenceGroup();
+        // look for next filename in load statement
+        newFileLoc.append(state.substring(cp,
+                ncp = (state.indexOf("\"", ncp + 1) + 1)));
+        String oldfilenam = state.substring(ncp,
+                ecp = state.indexOf("\"", ncp));
+        // recover the new mapping data for this old filename
+        // have to normalize filename - since Jmol and jalview do
+        // filename
+        // translation differently.
+        StructureData filedat = oldFiles.get(new File(oldfilenam));
+        newFileLoc.append(Platform.escapeString(filedat.getFilePath()));
+        pdbfilenames.add(filedat.getFilePath());
+        pdbids.add(filedat.getPdbId());
+        seqmaps.add(filedat.getSeqList().toArray(new SequenceI[0]));
+        newFileLoc.append("\"");
+        cp = ecp + 1; // advance beyond last \" and set cursor so we can
+                      // look for next file statement.
+      } while ((ncp = state.indexOf("/*file*/", cp)) > -1);
+    }
+    if (cp > 0)
+    {
+      // just append rest of state
+      newFileLoc.append(state.substring(cp));
+    }
+    else
+    {
+      System.err.print("Ignoring incomplete Jmol state for PDB ids: ");
+      newFileLoc = new StringBuilder(state);
+      newFileLoc.append("; load append ");
+      for (File id : oldFiles.keySet())
+      {
+        // add this and any other pdb files that should be present in
+        // the viewer
+        StructureData filedat = oldFiles.get(id);
+        newFileLoc.append(filedat.getFilePath());
+        pdbfilenames.add(filedat.getFilePath());
+        pdbids.add(filedat.getPdbId());
+        seqmaps.add(filedat.getSeqList().toArray(new SequenceI[0]));
+        newFileLoc.append(" \"");
+        newFileLoc.append(filedat.getFilePath());
+        newFileLoc.append("\"");
 
-        for (int r = 0; r < JSEQ[s].getHiddenSequencesCount(); r++)
+      }
+      newFileLoc.append(";");
+    }
+
+    if (newFileLoc.length() > 0)
+    {
+      int histbug = newFileLoc.indexOf("history = ");
+      histbug += 10;
+      int diff = histbug == -1 ? -1 : newFileLoc.indexOf(";", histbug);
+      String val = (diff == -1) ? null : newFileLoc
+              .substring(histbug, diff);
+      if (val != null && val.length() >= 4)
+      {
+        if (val.contains("e"))
         {
-          hidden.addSequence(al
-                  .getSequenceAt(JSEQ[s].getHiddenSequences(r)), false);
+          if (val.trim().equals("true"))
+          {
+            val = "1";
+          }
+          else
+          {
+            val = "0";
+          }
+          newFileLoc.replace(histbug, diff, val);
         }
-        af.viewport.hideRepSequences(al.getSequenceAt(s), hidden);
       }
 
-      jalview.datamodel.SequenceI[] hseqs = new jalview.datamodel.SequenceI[hiddenSeqs
-              .size()];
+      final String[] pdbf = pdbfilenames.toArray(new String[pdbfilenames
+              .size()]);
+      final String[] id = pdbids.toArray(new String[pdbids.size()]);
+      final SequenceI[][] sq = seqmaps
+              .toArray(new SequenceI[seqmaps.size()][]);
+      final String fileloc = newFileLoc.toString();
+      final String sviewid = viewerData.getKey();
+      final AlignFrame alf = af;
+      final Rectangle rect = new Rectangle(svattrib.getX(),
+              svattrib.getY(), svattrib.getWidth(), svattrib.getHeight());
+      try
+      {
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable()
+        {
+          @Override
+          public void run()
+          {
+            JalviewStructureDisplayI sview = null;
+            try
+            {
+              sview = new StructureViewer(alf.alignPanel
+                      .getStructureSelectionManager()).createView(
+                      StructureViewer.ViewerType.JMOL, pdbf, id, sq,
+                      alf.alignPanel, svattrib, fileloc, rect, sviewid);
+              addNewStructureViewer(sview);
+            } catch (OutOfMemoryError ex)
+            {
+              new OOMWarning("restoring structure view for PDB id " + id,
+                      (OutOfMemoryError) ex.getCause());
+              if (sview != null && sview.isVisible())
+              {
+                sview.closeViewer(false);
+                sview.setVisible(false);
+                sview.dispose();
+              }
+            }
+          }
+        });
+      } catch (InvocationTargetException ex)
+      {
+        warn("Unexpected error when opening Jmol view.", ex);
 
-      for (int s = 0; s < hiddenSeqs.size(); s++)
+      } catch (InterruptedException e)
       {
-        hseqs[s] = (jalview.datamodel.SequenceI) hiddenSeqs.elementAt(s);
+        // e.printStackTrace();
       }
+    }
+  }
 
-      af.viewport.hideSequence(hseqs);
+  /**
+   * Generates a name for the entry in the project jar file to hold state
+   * information for a structure viewer
+   * 
+   * @param viewId
+   * @return
+   */
+  protected String getViewerJarEntryName(String viewId)
+  {
+    return "viewer_" + viewId;
+  }
 
+  /**
+   * Returns any open frame that matches given structure viewer data. The match
+   * is based on the unique viewId, or (for older project versions) the frame's
+   * geometry.
+   * 
+   * @param viewerData
+   * @return
+   */
+  protected StructureViewerBase findMatchingViewer(
+          Entry<String, StructureViewerModel> viewerData)
+  {
+    final String sviewid = viewerData.getKey();
+    final StructureViewerModel svattrib = viewerData.getValue();
+    StructureViewerBase comp = null;
+    JInternalFrame[] frames = getAllFrames();
+    for (JInternalFrame frame : frames)
+    {
+      if (frame instanceof StructureViewerBase)
+      {
+        /*
+         * Post jalview 2.4 schema includes structure view id
+         */
+        if (sviewid != null
+                && ((StructureViewerBase) frame).getViewId()
+                        .equals(sviewid))
+        {
+          comp = (StructureViewerBase) frame;
+          break; // break added in 2.9
+        }
+        /*
+         * Otherwise test for matching position and size of viewer frame
+         */
+        else if (frame.getX() == svattrib.getX()
+                && frame.getY() == svattrib.getY()
+                && frame.getHeight() == svattrib.getHeight()
+                && frame.getWidth() == svattrib.getWidth())
+        {
+          comp = (StructureViewerBase) frame;
+          // no break in faint hope of an exact match on viewId
+        }
+      }
     }
+    return comp;
+  }
 
-    if ((hideConsensus || hideQuality || hideConservation)
-            && al.getAlignmentAnnotation() != null)
+  /**
+   * Link an AlignmentPanel to an existing structure viewer.
+   * 
+   * @param ap
+   * @param viewer
+   * @param oldFiles
+   * @param useinViewerSuperpos
+   * @param usetoColourbyseq
+   * @param viewerColouring
+   */
+  protected void linkStructureViewer(AlignmentPanel ap,
+          StructureViewerBase viewer, StructureViewerModel stateData)
+  {
+    // NOTE: if the jalview project is part of a shared session then
+    // view synchronization should/could be done here.
+
+    final boolean useinViewerSuperpos = stateData.isAlignWithPanel();
+    final boolean usetoColourbyseq = stateData.isColourWithAlignPanel();
+    final boolean viewerColouring = stateData.isColourByViewer();
+    Map<File, StructureData> oldFiles = stateData.getFileData();
+
+    /*
+     * Add mapping for sequences in this view to an already open viewer
+     */
+    final AAStructureBindingModel binding = viewer.getBinding();
+    for (File id : oldFiles.keySet())
     {
-      int hSize = al.getAlignmentAnnotation().length;
-      for (int h = 0; h < hSize; h++)
+      // add this and any other pdb files that should be present in the
+      // viewer
+      StructureData filedat = oldFiles.get(id);
+      String pdbFile = filedat.getFilePath();
+      SequenceI[] seq = filedat.getSeqList().toArray(new SequenceI[0]);
+      binding.getSsm().setMapping(seq, null, pdbFile,
+              jalview.io.AppletFormatAdapter.FILE);
+      binding.addSequenceForStructFile(pdbFile, seq);
+    }
+    // and add the AlignmentPanel's reference to the view panel
+    viewer.addAlignmentPanel(ap);
+    if (useinViewerSuperpos)
+    {
+      viewer.useAlignmentPanelForSuperposition(ap);
+    }
+    else
+    {
+      viewer.excludeAlignmentPanelForSuperposition(ap);
+    }
+    if (usetoColourbyseq)
+    {
+      viewer.useAlignmentPanelForColourbyseq(ap, !viewerColouring);
+    }
+    else
+    {
+      viewer.excludeAlignmentPanelForColourbyseq(ap);
+    }
+  }
+
+  /**
+   * Get all frames within the Desktop.
+   * 
+   * @return
+   */
+  protected JInternalFrame[] getAllFrames()
+  {
+    JInternalFrame[] frames = null;
+    // TODO is this necessary - is it safe - risk of hanging?
+    do
+    {
+      try
+      {
+        frames = Desktop.desktop.getAllFrames();
+      } catch (ArrayIndexOutOfBoundsException e)
       {
-        if ((hideConsensus && al.getAlignmentAnnotation()[h].label
-                .equals("Consensus"))
-                || (hideQuality && al.getAlignmentAnnotation()[h].label
-                        .equals("Quality"))
-                || (hideConservation && al.getAlignmentAnnotation()[h].label
-                        .equals("Conservation")))
+        // occasional No such child exceptions are thrown here...
+        try
+        {
+          Thread.sleep(10);
+        } catch (InterruptedException f)
         {
-          al.deleteAnnotation(al.getAlignmentAnnotation()[h]);
-          hSize--;
-          h--;
         }
       }
-      af.alignPanel.adjustAnnotationHeight();
+    } while (frames == null);
+    return frames;
+  }
+
+  /**
+   * 
+   * @param supported
+   *          - minimum version we are comparing against
+   * @param version
+   *          - version of data being processsed.
+   * @return true if version is development/null or evaluates to the same or
+   *         later X.Y.Z (where X,Y,Z are like [0-9]+b?[0-9]*)
+   */
+  private boolean isVersionStringLaterThan(String supported, String version)
+  {
+    if (version == null || version.equalsIgnoreCase("DEVELOPMENT BUILD")
+            || version.equalsIgnoreCase("Test")
+            || version.equalsIgnoreCase("AUTOMATED BUILD"))
+    {
+      System.err.println("Assuming project file with "
+              + (version == null ? "null" : version)
+              + " is compatible with Jalview version " + supported);
+      return true;
     }
+    else
+    {
+      StringTokenizer currentV = new StringTokenizer(supported, "."), fileV = new StringTokenizer(
+              version, ".");
+      while (currentV.hasMoreTokens() && fileV.hasMoreTokens())
+      {
+        // convert b to decimal to catch bugfix releases within a series
+        String curT = currentV.nextToken().toLowerCase().replace('b', '.');
+        String fileT = fileV.nextToken().toLowerCase().replace('b', '.');
+        try
+        {
+          if (Float.valueOf(curT) > Float.valueOf(fileT))
+          {
+            // current version is newer than the version that wrote the file
+            return false;
+          }
+        } catch (NumberFormatException nfe)
+        {
+          System.err
+                  .println("** WARNING: Version comparison failed for tokens ("
+                          + curT
+                          + ") and ("
+                          + fileT
+                          + ")\n** Current: '"
+                          + supported + "' and Version: '" + version + "'");
+        }
+      }
+      if (currentV.hasMoreElements())
+      {
+        // fileV has no minor version but identical series to current
+        return false;
+      }
+    }
+    return true;
+  }
+
+  Vector<JalviewStructureDisplayI> newStructureViewers = null;
+
+  protected void addNewStructureViewer(JalviewStructureDisplayI sview)
+  {
+    if (newStructureViewers != null)
+    {
+      sview.getBinding().setFinishedLoadingFromArchive(false);
+      newStructureViewers.add(sview);
+    }
+  }
+
+  protected void setLoadingFinishedForNewStructureViewers()
+  {
+    if (newStructureViewers != null)
+    {
+      for (JalviewStructureDisplayI sview : newStructureViewers)
+      {
+        sview.getBinding().setFinishedLoadingFromArchive(true);
+      }
+      newStructureViewers.clear();
+      newStructureViewers = null;
+    }
+  }
+
+  AlignFrame loadViewport(String file, JSeq[] JSEQ,
+          List<SequenceI> hiddenSeqs, Alignment al,
+          JalviewModelSequence jms, Viewport view, String uniqueSeqSetId,
+          String viewId, List<JvAnnotRow> autoAlan)
+  {
+    AlignFrame af = null;
+    af = new AlignFrame(al, view.getWidth(), view.getHeight(),
+            uniqueSeqSetId, viewId);
+
+    af.setFileName(file, "Jalview");
+
+    for (int i = 0; i < JSEQ.length; i++)
+    {
+      af.viewport.setSequenceColour(af.viewport.getAlignment()
+              .getSequenceAt(i), new java.awt.Color(JSEQ[i].getColour()));
+    }
+
+    af.viewport.setGatherViewsHere(view.getGatheredViews());
 
+    if (view.getSequenceSetId() != null)
+    {
+      AlignmentViewport av = viewportsAdded.get(uniqueSeqSetId);
+
+      af.viewport.setSequenceSetId(uniqueSeqSetId);
+      if (av != null)
+      {
+        // propagate shared settings to this new view
+        af.viewport.setHistoryList(av.getHistoryList());
+        af.viewport.setRedoList(av.getRedoList());
+      }
+      else
+      {
+        viewportsAdded.put(uniqueSeqSetId, af.viewport);
+      }
+      // TODO: check if this method can be called repeatedly without
+      // side-effects if alignpanel already registered.
+      PaintRefresher.Register(af.alignPanel, uniqueSeqSetId);
+    }
+    // apply Hidden regions to view.
+    if (hiddenSeqs != null)
+    {
+      for (int s = 0; s < JSEQ.length; s++)
+      {
+        jalview.datamodel.SequenceGroup hidden = new jalview.datamodel.SequenceGroup();
+
+        for (int r = 0; r < JSEQ[s].getHiddenSequencesCount(); r++)
+        {
+          hidden.addSequence(
+                  al.getSequenceAt(JSEQ[s].getHiddenSequences(r)), false);
+        }
+        af.viewport.hideRepSequences(al.getSequenceAt(s), hidden);
+      }
+
+      // jalview.datamodel.SequenceI[] hseqs = new
+      // jalview.datamodel.SequenceI[hiddenSeqs
+      // .size()];
+      //
+      // for (int s = 0; s < hiddenSeqs.size(); s++)
+      // {
+      // hseqs[s] = (jalview.datamodel.SequenceI) hiddenSeqs.elementAt(s);
+      // }
+
+      SequenceI[] hseqs = hiddenSeqs.toArray(new SequenceI[hiddenSeqs
+              .size()]);
+      af.viewport.hideSequence(hseqs);
+
+    }
+    // recover view properties and display parameters
     if (view.getViewName() != null)
     {
       af.viewport.viewName = view.getViewName();
       af.setInitialTabVisible();
     }
-    af.setBounds(view.getXpos(), view.getYpos(), view.getWidth(), view
-            .getHeight());
+    af.setBounds(view.getXpos(), view.getYpos(), view.getWidth(),
+            view.getHeight());
 
     af.viewport.setShowAnnotation(view.getShowAnnotation());
     af.viewport.setAbovePIDThreshold(view.getPidSelected());
@@ -1807,119 +3945,43 @@ public class Jalview2XML
 
     af.viewport.setConservationSelected(view.getConservationSelected());
     af.viewport.setShowJVSuffix(view.getShowFullId());
-    af.viewport.rightAlignIds = view.getRightAlignIds();
-    af.viewport.setFont(new java.awt.Font(view.getFontName(), view
-            .getFontStyle(), view.getFontSize()));
-    af.alignPanel.fontChanged();
+    af.viewport.setRightAlignIds(view.getRightAlignIds());
+    af.viewport.setFont(
+            new java.awt.Font(view.getFontName(), view.getFontStyle(), view
+                    .getFontSize()), true);
+    // TODO: allow custom charWidth/Heights to be restored by updating them
+    // after setting font - which means set above to false
     af.viewport.setRenderGaps(view.getRenderGaps());
     af.viewport.setWrapAlignment(view.getWrapAlignment());
-    af.alignPanel.setWrapAlignment(view.getWrapAlignment());
     af.viewport.setShowAnnotation(view.getShowAnnotation());
-    af.alignPanel.setAnnotationVisible(view.getShowAnnotation());
 
     af.viewport.setShowBoxes(view.getShowBoxes());
 
     af.viewport.setShowText(view.getShowText());
 
-    af.viewport.textColour = new java.awt.Color(view.getTextCol1());
-    af.viewport.textColour2 = new java.awt.Color(view.getTextCol2());
-    af.viewport.thresholdTextColour = view.getTextColThreshold();
-
+    af.viewport.setTextColour(new java.awt.Color(view.getTextCol1()));
+    af.viewport.setTextColour2(new java.awt.Color(view.getTextCol2()));
+    af.viewport.setThresholdTextColour(view.getTextColThreshold());
+    af.viewport.setShowUnconserved(view.hasShowUnconserved() ? view
+            .isShowUnconserved() : false);
     af.viewport.setStartRes(view.getStartRes());
     af.viewport.setStartSeq(view.getStartSeq());
-
+    af.alignPanel.updateLayout();
     ColourSchemeI cs = null;
-
+    // apply colourschemes
     if (view.getBgColour() != null)
     {
       if (view.getBgColour().startsWith("ucs"))
       {
-        cs = GetUserColourScheme(jms, view.getBgColour());
+        cs = getUserColourScheme(jms, view.getBgColour());
       }
       else if (view.getBgColour().startsWith("Annotation"))
       {
-        //int find annotation
-        for (int i = 0; i < af.viewport.alignment.getAlignmentAnnotation().length; i++)
-        {
-          if (af.viewport.alignment.getAlignmentAnnotation()[i].label
-                  .equals(view.getAnnotationColours().getAnnotation()))
-          {
-            if (af.viewport.alignment.getAlignmentAnnotation()[i]
-                    .getThreshold() == null)
-            {
-              af.viewport.alignment.getAlignmentAnnotation()[i]
-                      .setThreshold(new jalview.datamodel.GraphLine(view
-                              .getAnnotationColours().getThreshold(),
-                              "Threshold", java.awt.Color.black)
+        AnnotationColours viewAnnColour = view.getAnnotationColours();
+        cs = constructAnnotationColour(viewAnnColour, af, al, jms, true);
 
-                      );
-            }
+        // annpos
 
-            if (view.getAnnotationColours().getColourScheme()
-                    .equals("None"))
-            {
-              cs = new AnnotationColourGradient(af.viewport.alignment
-                      .getAlignmentAnnotation()[i], new java.awt.Color(view
-                      .getAnnotationColours().getMinColour()),
-                      new java.awt.Color(view.getAnnotationColours()
-                              .getMaxColour()), view.getAnnotationColours()
-                              .getAboveThreshold());
-            }
-            else if (view.getAnnotationColours().getColourScheme()
-                    .startsWith("ucs"))
-            {
-              cs = new AnnotationColourGradient(af.viewport.alignment
-                      .getAlignmentAnnotation()[i], GetUserColourScheme(
-                      jms, view.getAnnotationColours().getColourScheme()),
-                      view.getAnnotationColours().getAboveThreshold());
-            }
-            else
-            {
-              cs = new AnnotationColourGradient(af.viewport.alignment
-                      .getAlignmentAnnotation()[i], ColourSchemeProperty
-                      .getColour(al, view.getAnnotationColours()
-                              .getColourScheme()), view
-                      .getAnnotationColours().getAboveThreshold());
-            }
-
-            // Also use these settings for all the groups
-            if (al.getGroups() != null)
-            {
-              for (int g = 0; g < al.getGroups().size(); g++)
-              {
-                jalview.datamodel.SequenceGroup sg = (jalview.datamodel.SequenceGroup) al
-                        .getGroups().elementAt(g);
-
-                if (sg.cs == null)
-                {
-                  continue;
-                }
-
-                /*    if (view.getAnnotationColours().getColourScheme().equals("None"))
-                    {
-                      sg.cs = new AnnotationColourGradient(
-                          af.viewport.alignment.getAlignmentAnnotation()[i],
-                          new java.awt.Color(view.getAnnotationColours().
-                                             getMinColour()),
-                          new java.awt.Color(view.getAnnotationColours().
-                                             getMaxColour()),
-                          view.getAnnotationColours().getAboveThreshold());
-                    }
-                    else*/
-                {
-                  sg.cs = new AnnotationColourGradient(
-                          af.viewport.alignment.getAlignmentAnnotation()[i],
-                          sg.cs, view.getAnnotationColours()
-                                  .getAboveThreshold());
-                }
-
-              }
-            }
-
-            break;
-          }
-
-        }
       }
       else
       {
@@ -1929,7 +3991,7 @@ public class Jalview2XML
       if (cs != null)
       {
         cs.setThreshold(view.getPidThreshold(), true);
-        cs.setConsensus(af.viewport.hconsensus);
+        cs.setConsensus(af.viewport.getSequenceConsensusHash());
       }
     }
 
@@ -1945,44 +4007,144 @@ public class Jalview2XML
 
     af.viewport.setColourAppliesToAllGroups(true);
 
-    if (view.getShowSequenceFeatures())
+    af.viewport.setShowSequenceFeatures(view.getShowSequenceFeatures());
+
+    if (view.hasCentreColumnLabels())
+    {
+      af.viewport.setCentreColumnLabels(view.getCentreColumnLabels());
+    }
+    if (view.hasIgnoreGapsinConsensus())
+    {
+      af.viewport.setIgnoreGapsConsensus(view.getIgnoreGapsinConsensus(),
+              null);
+    }
+    if (view.hasFollowHighlight())
+    {
+      af.viewport.setFollowHighlight(view.getFollowHighlight());
+    }
+    if (view.hasFollowSelection())
+    {
+      af.viewport.followSelection = view.getFollowSelection();
+    }
+    if (view.hasShowConsensusHistogram())
+    {
+      af.viewport.setShowConsensusHistogram(view
+              .getShowConsensusHistogram());
+    }
+    else
+    {
+      af.viewport.setShowConsensusHistogram(true);
+    }
+    if (view.hasShowSequenceLogo())
+    {
+      af.viewport.setShowSequenceLogo(view.getShowSequenceLogo());
+    }
+    else
+    {
+      af.viewport.setShowSequenceLogo(false);
+    }
+    if (view.hasNormaliseSequenceLogo())
+    {
+      af.viewport.setNormaliseSequenceLogo(view.getNormaliseSequenceLogo());
+    }
+    if (view.hasShowDbRefTooltip())
+    {
+      af.viewport.setShowDBRefs(view.getShowDbRefTooltip());
+    }
+    if (view.hasShowNPfeatureTooltip())
+    {
+      af.viewport.setShowNPFeats(view.hasShowNPfeatureTooltip());
+    }
+    if (view.hasShowGroupConsensus())
+    {
+      af.viewport.setShowGroupConsensus(view.getShowGroupConsensus());
+    }
+    else
+    {
+      af.viewport.setShowGroupConsensus(false);
+    }
+    if (view.hasShowGroupConservation())
+    {
+      af.viewport.setShowGroupConservation(view.getShowGroupConservation());
+    }
+    else
     {
-      af.viewport.showSequenceFeatures = true;
+      af.viewport.setShowGroupConservation(false);
     }
 
+    // recover featre settings
     if (jms.getFeatureSettings() != null)
     {
-      af.viewport.featuresDisplayed = new Hashtable();
+      FeaturesDisplayed fdi;
+      af.viewport.setFeaturesDisplayed(fdi = new FeaturesDisplayed());
       String[] renderOrder = new String[jms.getFeatureSettings()
               .getSettingCount()];
+      Hashtable featureGroups = new Hashtable();
+      Hashtable featureColours = new Hashtable();
+      Hashtable featureOrder = new Hashtable();
+
       for (int fs = 0; fs < jms.getFeatureSettings().getSettingCount(); fs++)
       {
         Setting setting = jms.getFeatureSettings().getSetting(fs);
-
-        af.alignPanel.seqPanel.seqCanvas.getFeatureRenderer().setColour(
-                setting.getType(), new java.awt.Color(setting.getColour()));
+        if (setting.hasMincolour())
+        {
+          GraduatedColor gc = setting.hasMin() ? new GraduatedColor(
+                  new java.awt.Color(setting.getMincolour()),
+                  new java.awt.Color(setting.getColour()),
+                  setting.getMin(), setting.getMax()) : new GraduatedColor(
+                  new java.awt.Color(setting.getMincolour()),
+                  new java.awt.Color(setting.getColour()), 0, 1);
+          if (setting.hasThreshold())
+          {
+            gc.setThresh(setting.getThreshold());
+            gc.setThreshType(setting.getThreshstate());
+          }
+          gc.setAutoScaled(true); // default
+          if (setting.hasAutoScale())
+          {
+            gc.setAutoScaled(setting.getAutoScale());
+          }
+          if (setting.hasColourByLabel())
+          {
+            gc.setColourByLabel(setting.getColourByLabel());
+          }
+          // and put in the feature colour table.
+          featureColours.put(setting.getType(), gc);
+        }
+        else
+        {
+          featureColours.put(setting.getType(),
+                  new java.awt.Color(setting.getColour()));
+        }
         renderOrder[fs] = setting.getType();
         if (setting.hasOrder())
-          af.alignPanel.seqPanel.seqCanvas.getFeatureRenderer().setOrder(
-                  setting.getType(), setting.getOrder());
+        {
+          featureOrder.put(setting.getType(), setting.getOrder());
+        }
         else
-          af.alignPanel.seqPanel.seqCanvas.getFeatureRenderer().setOrder(
-                  setting.getType(),
-                  fs / jms.getFeatureSettings().getSettingCount());
+        {
+          featureOrder.put(setting.getType(), new Float(fs
+                  / jms.getFeatureSettings().getSettingCount()));
+        }
         if (setting.getDisplay())
         {
-          af.viewport.featuresDisplayed.put(setting.getType(), new Integer(
-                  setting.getColour()));
+          fdi.setVisible(setting.getType());
         }
       }
-      af.alignPanel.seqPanel.seqCanvas.getFeatureRenderer().renderOrder = renderOrder;
-      Hashtable fgtable;
-      af.alignPanel.seqPanel.seqCanvas.getFeatureRenderer().featureGroups = fgtable = new Hashtable();
+      Hashtable fgtable = new Hashtable();
       for (int gs = 0; gs < jms.getFeatureSettings().getGroupCount(); gs++)
       {
         Group grp = jms.getFeatureSettings().getGroup(gs);
         fgtable.put(grp.getName(), new Boolean(grp.getDisplay()));
       }
+      // FeatureRendererSettings frs = new FeatureRendererSettings(renderOrder,
+      // fgtable, featureColours, jms.getFeatureSettings().hasTransparency() ?
+      // jms.getFeatureSettings().getTransparency() : 0.0, featureOrder);
+      FeatureRendererSettings frs = new FeatureRendererSettings(
+              renderOrder, fgtable, featureColours, 1.0f, featureOrder);
+      af.alignPanel.getSeqPanel().seqCanvas.getFeatureRenderer()
+              .transferSettings(frs);
+
     }
 
     if (view.getHiddenColumnsCount() > 0)
@@ -1990,157 +4152,334 @@ public class Jalview2XML
       for (int c = 0; c < view.getHiddenColumnsCount(); c++)
       {
         af.viewport.hideColumns(view.getHiddenColumns(c).getStart(), view
-                .getHiddenColumns(c).getEnd() //+1
+                .getHiddenColumns(c).getEnd() // +1
                 );
       }
     }
-
-    af.setMenusFromViewport(af.viewport);
-
-    Desktop.addInternalFrame(af, view.getTitle(), view.getWidth(), view
-            .getHeight());
-
-    //LOAD TREES
-    ///////////////////////////////////////
-    if (loadTreesAndStructures && jms.getTreeCount() > 0)
+    if (view.getCalcIdParam() != null)
     {
-      try
+      for (CalcIdParam calcIdParam : view.getCalcIdParam())
       {
-        for (int t = 0; t < jms.getTreeCount(); t++)
+        if (calcIdParam != null)
         {
-
-          Tree tree = jms.getTree(t);
-
-          TreePanel tp = af.ShowNewickTree(new jalview.io.NewickFile(tree
-                  .getNewick()), tree.getTitle(), tree.getWidth(), tree
-                  .getHeight(), tree.getXpos(), tree.getYpos());
-
-          tp.fitToWindow.setState(tree.getFitToWindow());
-          tp.fitToWindow_actionPerformed(null);
-
-          if (tree.getFontName() != null)
+          if (recoverCalcIdParam(calcIdParam, af.viewport))
           {
-            tp.setTreeFont(new java.awt.Font(tree.getFontName(), tree
-                    .getFontStyle(), tree.getFontSize()));
           }
           else
           {
-            tp.setTreeFont(new java.awt.Font(view.getFontName(), view
-                    .getFontStyle(), tree.getFontSize()));
-          }
-
-          tp.showPlaceholders(tree.getMarkUnlinked());
-          tp.showBootstrap(tree.getShowBootstrap());
-          tp.showDistances(tree.getShowDistances());
-
-          tp.treeCanvas.threshold = tree.getThreshold();
-
-          if (tree.getCurrentTree())
-          {
-            af.viewport.setCurrentTree(tp.getTree());
+            warn("Couldn't recover parameters for "
+                    + calcIdParam.getCalcId());
           }
         }
+      }
+    }
+    af.setMenusFromViewport(af.viewport);
+    
+    // TODO: we don't need to do this if the viewport is aready visible.
+    /*
+     * Add the AlignFrame to the desktop (it may be 'gathered' later), unless it
+     * has a 'cdna/protein complement' view, in which case save it in order to
+     * populate a SplitFrame once all views have been read in.
+     */
+    String complementaryViewId = view.getComplementId();
+    if (complementaryViewId == null)
+    {
+      Desktop.addInternalFrame(af, view.getTitle(), view.getWidth(),
+              view.getHeight());
+      // recompute any autoannotation
+      af.alignPanel.updateAnnotation(false, true);
+      reorderAutoannotation(af, al, autoAlan);
+      af.alignPanel.alignmentChanged();
+    }
+    else
+    {
+      splitFrameCandidates.put(view, af);
+    }
+    return af;
+  }
 
-      } catch (Exception ex)
+  private ColourSchemeI constructAnnotationColour(
+          AnnotationColours viewAnnColour, AlignFrame af, Alignment al,
+          JalviewModelSequence jms, boolean checkGroupAnnColour)
+  {
+    boolean propagateAnnColour = false;
+    ColourSchemeI cs = null;
+    AlignmentI annAlignment = af != null ? af.viewport.getAlignment() : al;
+    if (checkGroupAnnColour && al.getGroups() != null
+            && al.getGroups().size() > 0)
+    {
+      // pre 2.8.1 behaviour
+      // check to see if we should transfer annotation colours
+      propagateAnnColour = true;
+      for (jalview.datamodel.SequenceGroup sg : al.getGroups())
       {
-        ex.printStackTrace();
+        if (sg.cs instanceof AnnotationColourGradient)
+        {
+          propagateAnnColour = false;
+        }
       }
     }
-
-    ////LOAD STRUCTURES
-    if (loadTreesAndStructures)
+    // int find annotation
+    if (annAlignment.getAlignmentAnnotation() != null)
     {
-      for (int i = 0; i < JSEQ.length; i++)
+      for (int i = 0; i < annAlignment.getAlignmentAnnotation().length; i++)
       {
-        if (JSEQ[i].getPdbidsCount() > 0)
+        if (annAlignment.getAlignmentAnnotation()[i].label
+                .equals(viewAnnColour.getAnnotation()))
         {
-          Pdbids[] ids = JSEQ[i].getPdbids();
-          for (int p = 0; p < ids.length; p++)
+          if (annAlignment.getAlignmentAnnotation()[i].getThreshold() == null)
+          {
+            annAlignment.getAlignmentAnnotation()[i]
+                    .setThreshold(new jalview.datamodel.GraphLine(
+                            viewAnnColour.getThreshold(), "Threshold",
+                            java.awt.Color.black)
+
+                    );
+          }
+
+          if (viewAnnColour.getColourScheme().equals("None"))
+          {
+            cs = new AnnotationColourGradient(
+                    annAlignment.getAlignmentAnnotation()[i],
+                    new java.awt.Color(viewAnnColour.getMinColour()),
+                    new java.awt.Color(viewAnnColour.getMaxColour()),
+                    viewAnnColour.getAboveThreshold());
+          }
+          else if (viewAnnColour.getColourScheme().startsWith("ucs"))
+          {
+            cs = new AnnotationColourGradient(
+                    annAlignment.getAlignmentAnnotation()[i],
+                    getUserColourScheme(jms,
+                            viewAnnColour.getColourScheme()),
+                    viewAnnColour.getAboveThreshold());
+          }
+          else
+          {
+            cs = new AnnotationColourGradient(
+                    annAlignment.getAlignmentAnnotation()[i],
+                    ColourSchemeProperty.getColour(al,
+                            viewAnnColour.getColourScheme()),
+                    viewAnnColour.getAboveThreshold());
+          }
+          if (viewAnnColour.hasPerSequence())
+          {
+            ((AnnotationColourGradient) cs).setSeqAssociated(viewAnnColour
+                    .isPerSequence());
+          }
+          if (viewAnnColour.hasPredefinedColours())
+          {
+            ((AnnotationColourGradient) cs)
+                    .setPredefinedColours(viewAnnColour
+                            .isPredefinedColours());
+          }
+          if (propagateAnnColour && al.getGroups() != null)
           {
-            for (int s = 0; s < ids[p].getStructureStateCount(); s++)
+            // Also use these settings for all the groups
+            for (int g = 0; g < al.getGroups().size(); g++)
             {
-              jalview.datamodel.PDBEntry jpdb = new jalview.datamodel.PDBEntry();
-
-              jpdb.setFile(loadPDBFile(ids[p].getFile(), ids[p].getId()));
-              jpdb.setId(ids[p].getId());
-
-              int x = ids[p].getStructureState(s).getXpos();
-              int y = ids[p].getStructureState(s).getYpos();
-              int width = ids[p].getStructureState(s).getWidth();
-              int height = ids[p].getStructureState(s).getHeight();
-
-              java.awt.Component comp = null;
-              
-              JInternalFrame[] frames = null;
-              do {
-                try {
-                  frames = Desktop.desktop.getAllFrames();
-                }
-                catch (ArrayIndexOutOfBoundsException e)
-                {
-                  // occasional No such child exceptions are thrown here...
-                  frames = null;
-                  try {
-                    Thread.sleep(10);
-                  } catch (Exception f) {};
-                }
-              } while (frames==null);
-              for (int f = 0; f < frames.length; f++)
+              jalview.datamodel.SequenceGroup sg = al.getGroups().get(g);
+
+              if (sg.cs == null)
+              {
+                continue;
+              }
+
+              /*
+               * if (viewAnnColour.getColourScheme().equals("None" )) { sg.cs =
+               * new AnnotationColourGradient(
+               * annAlignment.getAlignmentAnnotation()[i], new
+               * java.awt.Color(viewAnnColour. getMinColour()), new
+               * java.awt.Color(viewAnnColour. getMaxColour()),
+               * viewAnnColour.getAboveThreshold()); } else
+               */
               {
-                if (frames[f] instanceof AppJmol)
+                sg.cs = new AnnotationColourGradient(
+                        annAlignment.getAlignmentAnnotation()[i], sg.cs,
+                        viewAnnColour.getAboveThreshold());
+                if (cs instanceof AnnotationColourGradient)
                 {
-                  if (frames[f].getX() == x && frames[f].getY() == y
-                          && frames[f].getHeight() == height
-                          && frames[f].getWidth() == width)
+                  if (viewAnnColour.hasPerSequence())
+                  {
+                    ((AnnotationColourGradient) cs)
+                            .setSeqAssociated(viewAnnColour.isPerSequence());
+                  }
+                  if (viewAnnColour.hasPredefinedColours())
                   {
-                    comp = frames[f];
-                    break;
+                    ((AnnotationColourGradient) cs)
+                            .setPredefinedColours(viewAnnColour
+                                    .isPredefinedColours());
                   }
                 }
               }
 
-              Desktop.desktop.getComponentAt(x, y);
-
-              String pdbFile = loadPDBFile(file, ids[p].getId());
-
-              jalview.datamodel.SequenceI[] seq = new jalview.datamodel.SequenceI[]
-              { (jalview.datamodel.SequenceI) seqRefIds.get(JSEQ[i].getId()
-                      + "") };
-
-              if (comp == null)
-              {
-                String state = ids[p].getStructureState(s).getContent();
+            }
+          }
 
-                StringBuffer newFileLoc = new StringBuffer(state.substring(
-                        0, state.indexOf("\"", state.indexOf("load")) + 1));
+          break;
+        }
 
-                newFileLoc.append(jpdb.getFile());
-                newFileLoc.append(state.substring(state.indexOf("\"", state
-                        .indexOf("load \"") + 6)));
+      }
+    }
+    return cs;
+  }
 
-                new AppJmol(pdbFile, ids[p].getId(), seq, af.alignPanel,
-                        newFileLoc.toString(), new java.awt.Rectangle(x, y,
-                                width, height));
+  private void reorderAutoannotation(AlignFrame af, Alignment al,
+          List<JvAnnotRow> autoAlan)
+  {
+    // copy over visualization settings for autocalculated annotation in the
+    // view
+    if (al.getAlignmentAnnotation() != null)
+    {
+      /**
+       * Kludge for magic autoannotation names (see JAL-811)
+       */
+      String[] magicNames = new String[]
+      { "Consensus", "Quality", "Conservation" };
+      JvAnnotRow nullAnnot = new JvAnnotRow(-1, null);
+      Hashtable<String, JvAnnotRow> visan = new Hashtable<String, JvAnnotRow>();
+      for (String nm : magicNames)
+      {
+        visan.put(nm, nullAnnot);
+      }
+      for (JvAnnotRow auan : autoAlan)
+      {
+        visan.put(auan.template.label
+                + (auan.template.getCalcId() == null ? "" : "\t"
+                        + auan.template.getCalcId()), auan);
+      }
+      int hSize = al.getAlignmentAnnotation().length;
+      List<JvAnnotRow> reorder = new ArrayList<JvAnnotRow>();
+      // work through any autoCalculated annotation already on the view
+      // removing it if it should be placed in a different location on the
+      // annotation panel.
+      List<String> remains = new ArrayList<String>(visan.keySet());
+      for (int h = 0; h < hSize; h++)
+      {
+        jalview.datamodel.AlignmentAnnotation jalan = al
+                .getAlignmentAnnotation()[h];
+        if (jalan.autoCalculated)
+        {
+          String k;
+          JvAnnotRow valan = visan.get(k = jalan.label);
+          if (jalan.getCalcId() != null)
+          {
+            valan = visan.get(k = jalan.label + "\t" + jalan.getCalcId());
+          }
 
-              }
-              else if (comp != null)
+          if (valan != null)
+          {
+            // delete the auto calculated row from the alignment
+            al.deleteAnnotation(jalan, false);
+            remains.remove(k);
+            hSize--;
+            h--;
+            if (valan != nullAnnot)
+            {
+              if (jalan != valan.template)
               {
-                StructureSelectionManager.getStructureSelectionManager()
-                        .setMapping(seq, null, pdbFile,
-                                jalview.io.AppletFormatAdapter.FILE);
+                // newly created autoannotation row instance
+                // so keep a reference to the visible annotation row
+                // and copy over all relevant attributes
+                if (valan.template.graphHeight >= 0)
 
-                ((AppJmol) comp).addSequence(seq);
+                {
+                  jalan.graphHeight = valan.template.graphHeight;
+                }
+                jalan.visible = valan.template.visible;
               }
+              reorder.add(new JvAnnotRow(valan.order, jalan));
             }
           }
         }
       }
+      // Add any (possibly stale) autocalculated rows that were not appended to
+      // the view during construction
+      for (String other : remains)
+      {
+        JvAnnotRow othera = visan.get(other);
+        if (othera != nullAnnot && othera.template.getCalcId() != null
+                && othera.template.getCalcId().length() > 0)
+        {
+          reorder.add(othera);
+        }
+      }
+      // now put the automatic annotation in its correct place
+      int s = 0, srt[] = new int[reorder.size()];
+      JvAnnotRow[] rws = new JvAnnotRow[reorder.size()];
+      for (JvAnnotRow jvar : reorder)
+      {
+        rws[s] = jvar;
+        srt[s++] = jvar.order;
+      }
+      reorder.clear();
+      jalview.util.QuickSort.sort(srt, rws);
+      // and re-insert the annotation at its correct position
+      for (JvAnnotRow jvar : rws)
+      {
+        al.addAnnotation(jvar.template, jvar.order);
+      }
+      af.alignPanel.adjustAnnotationHeight();
     }
+  }
 
-    return af;
+  Hashtable skipList = null;
+
+  /**
+   * TODO remove this method
+   * 
+   * @param view
+   * @return AlignFrame bound to sequenceSetId from view, if one exists. private
+   *         AlignFrame getSkippedFrame(Viewport view) { if (skipList==null) {
+   *         throw new Error("Implementation Error. No skipList defined for this
+   *         Jalview2XML instance."); } return (AlignFrame)
+   *         skipList.get(view.getSequenceSetId()); }
+   */
+
+  /**
+   * Check if the Jalview view contained in object should be skipped or not.
+   * 
+   * @param object
+   * @return true if view's sequenceSetId is a key in skipList
+   */
+  private boolean skipViewport(JalviewModel object)
+  {
+    if (skipList == null)
+    {
+      return false;
+    }
+    String id;
+    if (skipList.containsKey(id = object.getJalviewModelSequence()
+            .getViewport()[0].getSequenceSetId()))
+    {
+      if (Cache.log != null && Cache.log.isDebugEnabled())
+      {
+        Cache.log.debug("Skipping seuqence set id " + id);
+      }
+      return true;
+    }
+    return false;
+  }
+
+  public void addToSkipList(AlignFrame af)
+  {
+    if (skipList == null)
+    {
+      skipList = new Hashtable();
+    }
+    skipList.put(af.getViewport().getSequenceSetId(), af);
   }
 
-  private void recoverDatasetFor(SequenceSet vamsasSet, Alignment al)
+  public void clearSkipList()
+  {
+    if (skipList != null)
+    {
+      skipList.clear();
+      skipList = null;
+    }
+  }
+
+  private void recoverDatasetFor(SequenceSet vamsasSet, Alignment al,
+          boolean ignoreUnrefed)
   {
     jalview.datamodel.Alignment ds = getDatasetFor(vamsasSet.getDatasetId());
     Vector dseqs = null;
@@ -2152,7 +4491,7 @@ public class Jalview2XML
     for (int i = 0, iSize = vamsasSet.getSequenceCount(); i < iSize; i++)
     {
       Sequence vamsasSeq = vamsasSet.getSequence(i);
-      ensureJalviewDatasetSequence(vamsasSeq, ds, dseqs);
+      ensureJalviewDatasetSequence(vamsasSeq, ds, dseqs, ignoreUnrefed);
     }
     // create a new dataset
     if (ds == null)
@@ -2160,38 +4499,48 @@ public class Jalview2XML
       SequenceI[] dsseqs = new SequenceI[dseqs.size()];
       dseqs.copyInto(dsseqs);
       ds = new jalview.datamodel.Alignment(dsseqs);
+      debug("Created new dataset " + vamsasSet.getDatasetId()
+              + " for alignment " + System.identityHashCode(al));
       addDatasetRef(vamsasSet.getDatasetId(), ds);
     }
     // set the dataset for the newly imported alignment.
-    if (al.getDataset() == null)
+    if (al.getDataset() == null && !ignoreUnrefed)
     {
       al.setDataset(ds);
     }
   }
-  
 
   /**
    * 
-   * @param vamsasSeq sequence definition to create/merge dataset sequence for
-   * @param ds dataset alignment 
-   * @param dseqs vector to add new dataset sequence to
+   * @param vamsasSeq
+   *          sequence definition to create/merge dataset sequence for
+   * @param ds
+   *          dataset alignment
+   * @param dseqs
+   *          vector to add new dataset sequence to
    */
-  private void ensureJalviewDatasetSequence(Sequence vamsasSeq, AlignmentI ds, Vector dseqs)
+  private void ensureJalviewDatasetSequence(Sequence vamsasSeq,
+          AlignmentI ds, Vector dseqs, boolean ignoreUnrefed)
   {
-    jalview.datamodel.Sequence sq = (jalview.datamodel.Sequence) seqRefIds.get(vamsasSeq.getId());
-    jalview.datamodel.SequenceI dsq = null;
-    if (sq!=null && sq.getDatasetSequence()!=null)
+    // JBP TODO: Check this is called for AlCodonFrames to support recovery of
+    // xRef Codon Maps
+    SequenceI sq = seqRefIds.get(vamsasSeq.getId());
+    SequenceI dsq = null;
+    if (sq != null && sq.getDatasetSequence() != null)
     {
-      dsq = (jalview.datamodel.SequenceI) sq.getDatasetSequence();
+      dsq = sq.getDatasetSequence();
+    }
+    if (sq == null && ignoreUnrefed)
+    {
+      return;
     }
-    
     String sqid = vamsasSeq.getDsseqid();
-    if (dsq==null)
+    if (dsq == null)
     {
       // need to create or add a new dataset sequence reference to this sequence
       if (sqid != null)
       {
-        dsq = (jalview.datamodel.SequenceI) seqRefIds.get(sqid);
+        dsq = seqRefIds.get(sqid);
       }
       // check again
       if (dsq == null)
@@ -2201,13 +4550,13 @@ public class Jalview2XML
         if (sqid == null)
         {
           // make up a new dataset reference for this sequence
-          sqid = "" + dsq.hashCode();
+          sqid = seqHash(dsq);
         }
         dsq.setVamsasId(uniqueSetSuffix + sqid);
         seqRefIds.put(sqid, dsq);
         if (ds == null)
         {
-          if (dseqs!=null)
+          if (dseqs != null)
           {
             dseqs.addElement(dsq);
           }
@@ -2216,54 +4565,72 @@ public class Jalview2XML
         {
           ds.addSequence(dsq);
         }
-      } else {
-        if (sq!=dsq)
-        {  // make this dataset sequence sq's dataset sequence
+      }
+      else
+      {
+        if (sq != dsq)
+        { // make this dataset sequence sq's dataset sequence
           sq.setDatasetSequence(dsq);
+          // and update the current dataset alignment
+          if (ds == null)
+          {
+            if (dseqs != null)
+            {
+              if (!dseqs.contains(dsq))
+              {
+                dseqs.add(dsq);
+              }
+            }
+            else
+            {
+              if (ds.findIndex(dsq) < 0)
+              {
+                ds.addSequence(dsq);
+              }
+            }
+          }
         }
       }
     }
     // TODO: refactor this as a merge dataset sequence function
-    // now check that sq (the dataset sequence) sequence really is the union of all references to it
-    //boolean pre = sq.getStart() < dsq.getStart();
-    //boolean post = sq.getEnd() > dsq.getEnd();
-    //if (pre || post)
-    if (sq!=dsq)
+    // now check that sq (the dataset sequence) sequence really is the union of
+    // all references to it
+    // boolean pre = sq.getStart() < dsq.getStart();
+    // boolean post = sq.getEnd() > dsq.getEnd();
+    // if (pre || post)
+    if (sq != dsq)
     {
-      StringBuffer sb = new StringBuffer();
+      // StringBuffer sb = new StringBuffer();
       String newres = jalview.analysis.AlignSeq.extractGaps(
               jalview.util.Comparison.GapChars, sq.getSequenceAsString());
-      if (!newres.equalsIgnoreCase(dsq.getSequenceAsString()) && newres.length()>dsq.getLength())
+      if (!newres.equalsIgnoreCase(dsq.getSequenceAsString())
+              && newres.length() > dsq.getLength())
       {
         // Update with the longer sequence.
         synchronized (dsq)
         {
-        /*if (pre)
-        {
-          sb.insert(0, newres
-                  .substring(0, dsq.getStart() - sq.getStart()));
-          dsq.setStart(sq.getStart());
-        }
-        if (post)
-        {
-          sb.append(newres.substring(newres.length() - sq.getEnd()
-                  - dsq.getEnd()));
-          dsq.setEnd(sq.getEnd());
-        }
-        */
-        dsq.setSequence(sb.toString());
+          /*
+           * if (pre) { sb.insert(0, newres .substring(0, dsq.getStart() -
+           * sq.getStart())); dsq.setStart(sq.getStart()); } if (post) {
+           * sb.append(newres.substring(newres.length() - sq.getEnd() -
+           * dsq.getEnd())); dsq.setEnd(sq.getEnd()); }
+           */
+          dsq.setSequence(newres);
         }
-        //TODO: merges will never happen if we 'know' we have the real dataset sequence - this should be detected when id==dssid
+        // TODO: merges will never happen if we 'know' we have the real dataset
+        // sequence - this should be detected when id==dssid
         System.err
-              .println("DEBUG Notice:  Merged dataset sequence"); // ("
-                      // + (pre ? "prepended" : "") + " "
-                      //+ (post ? "appended" : ""));
+                .println("DEBUG Notice:  Merged dataset sequence (if you see this often, post at http://issues.jalview.org/browse/JAL-1474)"); // ("
+        // + (pre ? "prepended" : "") + " "
+        // + (post ? "appended" : ""));
       }
     }
   }
 
   java.util.Hashtable datasetIds = null;
 
+  java.util.IdentityHashMap dataset2Ids = null;
+
   private Alignment getDatasetFor(String datasetId)
   {
     if (datasetIds == null)
@@ -2287,6 +4654,39 @@ public class Jalview2XML
     datasetIds.put(datasetId, dataset);
   }
 
+  /**
+   * make a new dataset ID for this jalview dataset alignment
+   * 
+   * @param dataset
+   * @return
+   */
+  private String getDatasetIdRef(jalview.datamodel.Alignment dataset)
+  {
+    if (dataset.getDataset() != null)
+    {
+      warn("Serious issue!  Dataset Object passed to getDatasetIdRef is not a Jalview DATASET alignment...");
+    }
+    String datasetId = makeHashCode(dataset, null);
+    if (datasetId == null)
+    {
+      // make a new datasetId and record it
+      if (dataset2Ids == null)
+      {
+        dataset2Ids = new IdentityHashMap();
+      }
+      else
+      {
+        datasetId = (String) dataset2Ids.get(dataset);
+      }
+      if (datasetId == null)
+      {
+        datasetId = "ds" + dataset2Ids.size() + 1;
+        dataset2Ids.put(dataset, datasetId);
+      }
+    }
+    return datasetId;
+  }
+
   private void addDBRefs(SequenceI datasetSequence, Sequence sequence)
   {
     for (int d = 0; d < sequence.getDBRefCount(); d++)
@@ -2330,17 +4730,18 @@ public class Jalview2XML
       MappingChoice mc = m.getMappingChoice();
       if (mc.getDseqFor() != null)
       {
-        if (seqRefIds.containsKey(mc.getDseqFor()))
+        String dsfor = "" + mc.getDseqFor();
+        if (seqRefIds.containsKey(dsfor))
         {
           /**
            * recover from hash
            */
-          jmap.setTo((SequenceI) seqRefIds.get(mc.getDseqFor()));
+          jmap.setTo(seqRefIds.get(dsfor));
         }
         else
         {
           frefedSequence.add(new Object[]
-          { mc.getDseqFor(), jmap });
+          { dsfor, jmap });
         }
       }
       else
@@ -2349,35 +4750,41 @@ public class Jalview2XML
          * local sequence definition
          */
         Sequence ms = mc.getSequence();
-        jalview.datamodel.Sequence djs=null;
+        SequenceI djs = null;
         String sqid = ms.getDsseqid();
-        if (sqid!=null && sqid.length()>0)
+        if (sqid != null && sqid.length() > 0)
         {
           /*
            * recover dataset sequence
            */
-          djs = (jalview.datamodel.Sequence) seqRefIds.get(sqid);
-        } else {
-          System.err.println("Warning - making up dataset sequence id for DbRef sequence map reference");
-          sqid = ""+ms.hashCode(); // make up a new hascode for undefined dataset sequence hash (unlikely to happen)
+          djs = seqRefIds.get(sqid);
         }
-        
-        if (djs==null) {
+        else
+        {
+          System.err
+                  .println("Warning - making up dataset sequence id for DbRef sequence map reference");
+          sqid = ((Object) ms).toString(); // make up a new hascode for
+          // undefined dataset sequence hash
+          // (unlikely to happen)
+        }
+
+        if (djs == null)
+        {
           /**
            * make a new dataset sequence and add it to refIds hash
            */
-          djs = new jalview.datamodel.Sequence(ms
-                .getName(), ms.getSequence());
+          djs = new jalview.datamodel.Sequence(ms.getName(),
+                  ms.getSequence());
           djs.setStart(jmap.getMap().getToLowest());
           djs.setEnd(jmap.getMap().getToHighest());
           djs.setVamsasId(uniqueSetSuffix + sqid);
           jmap.setTo(djs);
           seqRefIds.put(sqid, djs);
-          
+
         }
         jalview.bin.Cache.log.debug("about to recurse on addDBRefs.");
         addDBRefs(djs, ms);
-        
+
       }
     }
     return (jmap);
@@ -2387,37 +4794,289 @@ public class Jalview2XML
   public jalview.gui.AlignmentPanel copyAlignPanel(AlignmentPanel ap,
           boolean keepSeqRefs)
   {
-    jalview.schemabinding.version2.JalviewModel jm = SaveState(ap, null,
-            null, null);
+    initSeqRefs();
+    jalview.schemabinding.version2.JalviewModel jm = saveState(ap, null,
+            null);
 
     if (!keepSeqRefs)
     {
-      seqRefIds.clear();
+      clearSeqRefs();
       jm.getJalviewModelSequence().getViewport(0).setSequenceSetId(null);
     }
     else
     {
       uniqueSetSuffix = "";
+      jm.getJalviewModelSequence().getViewport(0).setId(null); // we don't
+      // overwrite the
+      // view we just
+      // copied
+    }
+    if (this.frefedSequence == null)
+    {
+      frefedSequence = new Vector();
     }
 
-    viewportsAdded = new Hashtable();
+    viewportsAdded.clear();
 
-    AlignFrame af = LoadFromObject(jm, null, false);
+    AlignFrame af = loadFromObject(jm, null, false, null);
     af.alignPanels.clear();
     af.closeMenuItem_actionPerformed(true);
 
-    /*  if(ap.av.alignment.getAlignmentAnnotation()!=null)
+    /*
+     * if(ap.av.getAlignment().getAlignmentAnnotation()!=null) { for(int i=0;
+     * i<ap.av.getAlignment().getAlignmentAnnotation().length; i++) {
+     * if(!ap.av.getAlignment().getAlignmentAnnotation()[i].autoCalculated) {
+     * af.alignPanel.av.getAlignment().getAlignmentAnnotation()[i] =
+     * ap.av.getAlignment().getAlignmentAnnotation()[i]; } } }
+     */
+
+    return af.alignPanel;
+  }
+
+  /**
+   * flag indicating if hashtables should be cleared on finalization TODO this
+   * flag may not be necessary
+   */
+  private final boolean _cleartables = true;
+
+  private Hashtable jvids2vobj;
+
+  /*
+   * (non-Javadoc)
+   * 
+   * @see java.lang.Object#finalize()
+   */
+  @Override
+  protected void finalize() throws Throwable
+  {
+    // really make sure we have no buried refs left.
+    if (_cleartables)
+    {
+      clearSeqRefs();
+    }
+    this.seqRefIds = null;
+    this.seqsToIds = null;
+    super.finalize();
+  }
+
+  private void warn(String msg)
+  {
+    warn(msg, null);
+  }
+
+  private void warn(String msg, Exception e)
+  {
+    if (Cache.log != null)
+    {
+      if (e != null)
+      {
+        Cache.log.warn(msg, e);
+      }
+      else
+      {
+        Cache.log.warn(msg);
+      }
+    }
+    else
+    {
+      System.err.println("Warning: " + msg);
+      if (e != null)
+      {
+        e.printStackTrace();
+      }
+    }
+  }
+
+  private void debug(String string)
+  {
+    debug(string, null);
+  }
+
+  private void debug(String msg, Exception e)
+  {
+    if (Cache.log != null)
+    {
+      if (e != null)
+      {
+        Cache.log.debug(msg, e);
+      }
+      else
+      {
+        Cache.log.debug(msg);
+      }
+    }
+    else
+    {
+      System.err.println("Warning: " + msg);
+      if (e != null)
+      {
+        e.printStackTrace();
+      }
+    }
+  }
+
+  /**
+   * set the object to ID mapping tables used to write/recover objects and XML
+   * ID strings for the jalview project. If external tables are provided then
+   * finalize and clearSeqRefs will not clear the tables when the Jalview2XML
+   * object goes out of scope. - also populates the datasetIds hashtable with
+   * alignment objects containing dataset sequences
+   * 
+   * @param vobj2jv
+   *          Map from ID strings to jalview datamodel
+   * @param jv2vobj
+   *          Map from jalview datamodel to ID strings
+   * 
+   * 
+   */
+  public void setObjectMappingTables(Hashtable vobj2jv,
+          IdentityHashMap jv2vobj)
+  {
+    this.jv2vobj = jv2vobj;
+    this.vobj2jv = vobj2jv;
+    Iterator ds = jv2vobj.keySet().iterator();
+    String id;
+    while (ds.hasNext())
+    {
+      Object jvobj = ds.next();
+      id = jv2vobj.get(jvobj).toString();
+      if (jvobj instanceof jalview.datamodel.Alignment)
       {
-        for(int i=0; i<ap.av.alignment.getAlignmentAnnotation().length; i++)
+        if (((jalview.datamodel.Alignment) jvobj).getDataset() == null)
         {
-          if(!ap.av.alignment.getAlignmentAnnotation()[i].autoCalculated)
-          {
-            af.alignPanel.av.alignment.getAlignmentAnnotation()[i] =
-                ap.av.alignment.getAlignmentAnnotation()[i];
-          }
+          addDatasetRef(id, (jalview.datamodel.Alignment) jvobj);
+        }
+      }
+      else if (jvobj instanceof jalview.datamodel.Sequence)
+      {
+        // register sequence object so the XML parser can recover it.
+        if (seqRefIds == null)
+        {
+          seqRefIds = new HashMap<String, SequenceI>();
+        }
+        if (seqsToIds == null)
+        {
+          seqsToIds = new IdentityHashMap<SequenceI, String>();
+        }
+        seqRefIds.put(jv2vobj.get(jvobj).toString(), (SequenceI) jvobj);
+        seqsToIds.put((SequenceI) jvobj, id);
+      }
+      else if (jvobj instanceof jalview.datamodel.AlignmentAnnotation)
+      {
+        String anid;
+        AlignmentAnnotation jvann = (AlignmentAnnotation) jvobj;
+        annotationIds.put(anid = jv2vobj.get(jvobj).toString(), jvann);
+        if (jvann.annotationId == null)
+        {
+          jvann.annotationId = anid;
+        }
+        if (!jvann.annotationId.equals(anid))
+        {
+          // TODO verify that this is the correct behaviour
+          this.warn("Overriding Annotation ID for " + anid
+                  + " from different id : " + jvann.annotationId);
+          jvann.annotationId = anid;
+        }
+      }
+      else if (jvobj instanceof String)
+      {
+        if (jvids2vobj == null)
+        {
+          jvids2vobj = new Hashtable();
+          jvids2vobj.put(jvobj, jv2vobj.get(jvobj).toString());
         }
-      }   */
+      }
+      else
+      {
+        Cache.log.debug("Ignoring " + jvobj.getClass() + " (ID = " + id);
+      }
+    }
+  }
 
-    return af.alignPanel;
+  /**
+   * set the uniqueSetSuffix used to prefix/suffix object IDs for jalview
+   * objects created from the project archive. If string is null (default for
+   * construction) then suffix will be set automatically.
+   * 
+   * @param string
+   */
+  public void setUniqueSetSuffix(String string)
+  {
+    uniqueSetSuffix = string;
+
+  }
+
+  /**
+   * uses skipList2 as the skipList for skipping views on sequence sets
+   * associated with keys in the skipList
+   * 
+   * @param skipList2
+   */
+  public void setSkipList(Hashtable skipList2)
+  {
+    skipList = skipList2;
+  }
+
+  /**
+   * Reads the jar entry of given name and returns its contents, or null if the
+   * entry is not found.
+   * 
+   * @param jprovider
+   * @param jarEntryName
+   * @return
+   */
+  protected String readJarEntry(jarInputStreamProvider jprovider,
+          String jarEntryName)
+  {
+    String result = null;
+    BufferedReader in = null;
+
+    try
+    {
+      /*
+       * Reopen the jar input stream and traverse its entries to find a matching
+       * name
+       */
+      JarInputStream jin = jprovider.getJarInputStream();
+      JarEntry entry = null;
+      do
+      {
+        entry = jin.getNextJarEntry();
+      } while (entry != null && !entry.getName().equals(jarEntryName));
+
+      if (entry != null)
+      {
+        StringBuilder out = new StringBuilder(256);
+        in = new BufferedReader(new InputStreamReader(jin, UTF_8));
+        String data;
+
+        while ((data = in.readLine()) != null)
+        {
+          out.append(data);
+        }
+        result = out.toString();
+      }
+      else
+      {
+        warn("Couldn't find entry in Jalview Jar for " + jarEntryName);
+      }
+    } catch (Exception ex)
+    {
+      ex.printStackTrace();
+    } finally
+    {
+      if (in != null)
+      {
+        try
+        {
+          in.close();
+        } catch (IOException e)
+        {
+          // ignore
+        }
+      }
+    }
+  
+    return result;
   }
 }