X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FAlignFrame.java;h=7db8f01805fec6f67eb2650b1b925eb7e018c4ef;hb=1146ae7f678127be7796772b228d5fc6823435d4;hp=2d391082f83ee5299c771d6b6c9d90c4eec7c786;hpb=998f8c437ca6ea5f76e261ef544e90ebee632f78;p=jalview.git

diff --git a/src/jalview/gui/AlignFrame.java b/src/jalview/gui/AlignFrame.java
index 2d39108..7db8f01 100755
--- a/src/jalview/gui/AlignFrame.java
+++ b/src/jalview/gui/AlignFrame.java
@@ -1,6 +1,6 @@
 /*
  * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ * 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
@@ -24,19 +24,18 @@ import java.util.*;
 
 import java.awt.*;
 import java.awt.datatransfer.*;
+import java.awt.dnd.*;
 import java.awt.event.*;
 import java.awt.print.*;
 import javax.swing.*;
 
 import jalview.analysis.*;
+import jalview.commands.*;
 import jalview.datamodel.*;
 import jalview.io.*;
 import jalview.jbgui.*;
 import jalview.schemes.*;
-import jalview.util.ShiftList;
 import jalview.ws.*;
-import java.awt.dnd.*;
-import org.biojava.dasobert.eventmodel.*;
 
 /**
  * DOCUMENT ME!
@@ -45,112 +44,413 @@ import org.biojava.dasobert.eventmodel.*;
  * @version $Revision$
  */
 public class AlignFrame
-    extends GAlignFrame implements DropTargetListener, FeatureListener
+    extends GAlignFrame implements DropTargetListener
 {
   /** DOCUMENT ME!! */
-  public static final int NEW_WINDOW_WIDTH = 700;
+  public static final int DEFAULT_WIDTH = 700;
 
   /** DOCUMENT ME!! */
-  public static final int NEW_WINDOW_HEIGHT = 500;
-  AlignmentPanel alignPanel;
+  public static final int DEFAULT_HEIGHT = 500;
+  public AlignmentPanel alignPanel;
+
   AlignViewport viewport;
 
+  Vector alignPanels = new Vector();
+
+
   /** DOCUMENT ME!! */
-  public String currentFileFormat = null;
-  Stack historyList = new Stack();
-  Stack redoList = new Stack();
-  private int treeCount = 0;
+  String currentFileFormat = null;
+
+  String fileName = null;
+
+
+  /**
+   * Creates a new AlignFrame object.
+   *
+   * @param al DOCUMENT ME!
+   */
+  public AlignFrame(AlignmentI al, int width, int height)
+  {
+    this(al, null, width, height);
+  }
+
 
   /**
    * new alignment window with hidden columns
    * @param al AlignmentI
    * @param hiddenColumns ColumnSelection or null
    */
-  public AlignFrame(AlignmentI al, ColumnSelection hiddenColumns) {
-
+  public AlignFrame(AlignmentI al, ColumnSelection hiddenColumns,
+                    int width, int height)
+  {
+    this.setSize(width, height);
     viewport = new AlignViewport(al, hiddenColumns);
 
+    alignPanel = new AlignmentPanel(this, viewport);
+
+    if(al.getDataset()==null)
+    {
+      al.setDataset(null);
+    }
+
+    addAlignmentPanel(alignPanel, true);
+    init();
+  }
+
+  /**
+   * Make a new AlignFrame from exisiting alignmentPanels
+   * @param ap AlignmentPanel
+   * @param av AlignViewport
+   */
+  public AlignFrame(AlignmentPanel ap)
+  {
+    viewport = ap.av;
+    alignPanel = ap;
+    addAlignmentPanel(ap, false);
+    init();
+  }
+
+  void init()
+  {
     this.setDropTarget(new java.awt.dnd.DropTarget(this, this));
 
-    if(viewport.vconsensus==null)
+    if (viewport.conservation == null)
     {
-      //Out of memory calculating consensus.
       BLOSUM62Colour.setEnabled(false);
-      PIDColour.setEnabled(false);
       conservationMenuItem.setEnabled(false);
       modifyConservation.setEnabled(false);
-      abovePIDThreshold.setEnabled(false);
-      modifyPID.setEnabled(false);
+    //  PIDColour.setEnabled(false);
+    //  abovePIDThreshold.setEnabled(false);
+    //  modifyPID.setEnabled(false);
     }
 
-    alignPanel = new AlignmentPanel(this, viewport);
-
     String sortby = jalview.bin.Cache.getDefault("SORT_ALIGNMENT", "No sort");
 
-    if(sortby.equals("Id"))
+    if (sortby.equals("Id"))
+    {
       sortIDMenuItem_actionPerformed(null);
-    else if(sortby.equals("Pairwise Identity"))
+    }
+    else if (sortby.equals("Pairwise Identity"))
+    {
       sortPairwiseMenuItem_actionPerformed(null);
+    }
 
-   // remove(tabbedPane);
-    getContentPane().add(alignPanel, BorderLayout.CENTER);
-
+    if (Desktop.desktop != null)
+   {
+     addServiceListeners();
+     setGUINucleotide(viewport.alignment.isNucleotide());
+   }
 
+   setMenusFromViewport(viewport);
 
-  //  tabbedPane.add(al.isNucleotide() ? "DNA":"Protein", alignPanel);
+   if (viewport.wrapAlignment)
+   {
+     wrapMenuItem_actionPerformed(null);
+   }
 
-    ///Dataset tab
-    /////////////////////////
-    if(al.getDataset()==null)
+    if (jalview.bin.Cache.getDefault("SHOW_OVERVIEW",false))
     {
-      al.setDataset(null);
+      this.overviewMenuItem_actionPerformed(null);
     }
-   // AlignViewport ds = new AlignViewport(al.getDataset(), true);
-   // AlignmentPanel dap = new AlignmentPanel(this, ds);
-  //  tabbedPane.add("Dataset", dap);
-  //  viewports.add(ds);
-  //  alignPanels.add(dap);
-    /////////////////////////
 
+   addKeyListener();
 
-    viewport.addPropertyChangeListener(new PropertyChangeListener()
-    {
-     public void propertyChange(PropertyChangeEvent evt)
-     {
-       if (evt.getPropertyName().equals("alignment"))
-       {
-         alignmentChanged();
-       }
-     }
-   });
+  }
 
+  public void setFileName(String file, String format)
+  {
+     fileName = file;
+     currentFileFormat = format;
+     reload.setEnabled(true);
+  }
 
-    if (Desktop.desktop != null)
+  void addKeyListener()
+  {
+      addKeyListener(new KeyAdapter()
+      {
+        public void keyPressed(KeyEvent evt)
+        {
+          if (viewport.cursorMode
+              && evt.getKeyCode() >= KeyEvent.VK_0
+              && evt.getKeyCode() <= KeyEvent.VK_9)
+          {
+            alignPanel.seqPanel.numberPressed(evt.getKeyChar());
+          }
+
+          switch (evt.getKeyCode())
+          {
+
+            case 27: // escape key
+              deselectAllSequenceMenuItem_actionPerformed(null);
+
+              break;
+
+            case KeyEvent.VK_DOWN:
+             if (evt.isAltDown() || !viewport.cursorMode)
+              moveSelectedSequences(false);
+              if (viewport.cursorMode)
+                alignPanel.seqPanel.moveCursor(0, 1);
+              break;
+
+            case KeyEvent.VK_UP:
+            if (evt.isAltDown() || !viewport.cursorMode)
+              moveSelectedSequences(true);
+              if (viewport.cursorMode)
+                alignPanel.seqPanel.moveCursor(0, -1);
+
+              break;
+
+            case KeyEvent.VK_LEFT:
+            if (evt.isAltDown() || !viewport.cursorMode)
+              slideSequences(false,
+                             alignPanel.seqPanel.getKeyboardNo1());
+            else
+                alignPanel.seqPanel.moveCursor( -1, 0);
+
+
+              break;
+
+            case KeyEvent.VK_RIGHT:
+            if (evt.isAltDown() || !viewport.cursorMode)
+              slideSequences(true,
+                             alignPanel.seqPanel.getKeyboardNo1());
+            else
+                alignPanel.seqPanel.moveCursor(1, 0);
+              break;
+
+            case KeyEvent.VK_SPACE:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.insertGapAtCursor(evt.isControlDown()
+                                           || evt.isShiftDown()
+                                           || evt.isAltDown());
+              }
+              break;
+
+            case KeyEvent.VK_DELETE:
+            case KeyEvent.VK_BACK_SPACE:
+              if (!viewport.cursorMode)
+              {
+                cut_actionPerformed(null);
+              }
+              else
+            {
+                alignPanel.seqPanel.deleteGapAtCursor(evt.isControlDown()
+                                           || evt.isShiftDown()
+                                           || evt.isAltDown());
+            }
+
+              break;
+
+            case KeyEvent.VK_S:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.setCursorRow();
+              }
+              break;
+            case KeyEvent.VK_C:
+              if (viewport.cursorMode && !evt.isControlDown())
+              {
+                alignPanel.seqPanel.setCursorColumn();
+              }
+              break;
+            case KeyEvent.VK_P:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.setCursorPosition();
+              }
+              break;
+
+            case KeyEvent.VK_ENTER:
+            case KeyEvent.VK_COMMA:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.setCursorRowAndColumn();
+              }
+              break;
+
+            case KeyEvent.VK_Q:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.setSelectionAreaAtCursor(true);
+              }
+              break;
+            case KeyEvent.VK_M:
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.setSelectionAreaAtCursor(false);
+              }
+              break;
+
+            case KeyEvent.VK_F2:
+              viewport.cursorMode = !viewport.cursorMode;
+              statusBar.setText("Keyboard editing mode is " +
+                                           (viewport.cursorMode ? "on" : "off"));
+              if (viewport.cursorMode)
+              {
+                alignPanel.seqPanel.seqCanvas.cursorX = viewport.startRes;
+                alignPanel.seqPanel.seqCanvas.cursorY = viewport.startSeq;
+              }
+              alignPanel.seqPanel.seqCanvas.repaint();
+              break;
+
+            case KeyEvent.VK_F1:
+              try
+              {
+                ClassLoader cl = jalview.gui.Desktop.class.getClassLoader();
+                java.net.URL url = javax.help.HelpSet.findHelpSet(cl, "help/help");
+                javax.help.HelpSet hs = new javax.help.HelpSet(cl, url);
+
+                javax.help.HelpBroker hb = hs.createHelpBroker();
+                hb.setCurrentID("home");
+                hb.setDisplayed(true);
+              }
+              catch (Exception ex)
+              {
+                ex.printStackTrace();
+              }
+              break
+                  ;
+            case KeyEvent.VK_H:
+            {
+              boolean toggleSeqs = !evt.isControlDown();
+              boolean toggleCols = !evt.isShiftDown();
+
+              boolean hide = false;
+
+              SequenceGroup sg = viewport.getSelectionGroup();
+              if (toggleSeqs)
+              {
+                if (sg != null && sg.getSize() != viewport.alignment.getHeight())
+                {
+                  hideSelSequences_actionPerformed(null);
+                  hide = true;
+                }
+              else if (! (toggleCols &&
+                          viewport.colSel.getSelected().size() > 0))
+              {
+                  showAllSeqs_actionPerformed(null);
+              }
+            }
+
+              if (toggleCols)
+              {
+                if (viewport.colSel.getSelected().size() > 0)
+                {
+                  hideSelColumns_actionPerformed(null);
+                  if (!toggleSeqs)
+                {
+                    viewport.selectionGroup = sg;
+                }
+              }
+                else if (!hide)
+              {
+                  showAllColumns_actionPerformed(null);
+              }
+            }
+              break;
+            }
+            case KeyEvent.VK_PAGE_UP:
+              if (viewport.wrapAlignment)
+            {
+                alignPanel.scrollUp(true);
+            }
+              else
+            {
+                alignPanel.setScrollValues(viewport.startRes,
+                                           viewport.startSeq
+                                           - viewport.endSeq + viewport.startSeq);
+            }
+              break;
+            case KeyEvent.VK_PAGE_DOWN:
+              if (viewport.wrapAlignment)
+            {
+                alignPanel.scrollUp(false);
+            }
+              else
+            {
+                alignPanel.setScrollValues(viewport.startRes,
+                                           viewport.startSeq
+                                           + viewport.endSeq - viewport.startSeq);
+            }
+              break;
+          }
+        }
+
+      public void keyReleased(KeyEvent evt)
+      {
+        switch(evt.getKeyCode())
+        {
+          case KeyEvent.VK_LEFT:
+            if (evt.isAltDown() || !viewport.cursorMode)
+              viewport.firePropertyChange("alignment", null,
+                                          viewport.getAlignment().getSequences());
+            break;
+
+          case KeyEvent.VK_RIGHT:
+            if (evt.isAltDown() || !viewport.cursorMode)
+              viewport.firePropertyChange("alignment", null,
+                                          viewport.getAlignment().getSequences());
+            break;
+        }
+      }
+      });
+  }
+
+
+  public void addAlignmentPanel(final AlignmentPanel ap,
+                                boolean newPanel)
+  {
+    ap.alignFrame = this;
+
+    alignPanels.addElement(ap);
+
+    PaintRefresher.Register(ap, ap.av.getSequenceSetId());
+
+    int aSize = alignPanels.size();
+
+    tabbedPane.setVisible(aSize>1 || ap.av.viewName!=null);
+
+    if (aSize == 1 && ap.av.viewName==null)
     {
-      addServiceListeners();
-      setGUINucleotide(al.isNucleotide());
+      this.getContentPane().add(ap, BorderLayout.CENTER);
     }
+    else
+    {
+      if (aSize == 2)
+      {
+        setInitialTabVisible();
+      }
 
+      expandViews.setEnabled(true);
+      gatherViews.setEnabled(true);
+      tabbedPane.addTab(ap.av.viewName, ap);
 
-    if (jalview.bin.Cache.getDefault("WRAP_ALIGNMENT", false))
-    {
-      wrapMenuItem.setSelected(true);
-      wrapMenuItem_actionPerformed(null);
+      ap.setVisible(false);
     }
 
+    if(newPanel)
+    {
+      if (ap.av.padGaps)
+      {
+        ap.av.alignment.padGaps();
+      }
+      ap.av.updateConservation(ap);
+      ap.av.updateConsensus(ap);
+    }
   }
 
-
-  /**
-   * Creates a new AlignFrame object.
-   *
-   * @param al DOCUMENT ME!
-   */
-  public AlignFrame(AlignmentI al)
+  public void setInitialTabVisible()
   {
-    this(al, null);
+    expandViews.setEnabled(true);
+    gatherViews.setEnabled(true);
+    tabbedPane.setVisible(true);
+    AlignmentPanel first = (AlignmentPanel) alignPanels.firstElement();
+    tabbedPane.addTab(first.av.viewName,first);
+    this.getContentPane().add(tabbedPane, BorderLayout.CENTER);
   }
 
+
   public AlignViewport getViewport()
   {
     return viewport;
@@ -175,6 +475,7 @@ public class AlignFrame
         }
       }
     });
+
     addInternalFrameListener(new javax.swing.event.
                              InternalFrameAdapter()
     {
@@ -183,7 +484,7 @@ public class AlignFrame
       {
         // System.out.println("deregistering discoverer listener");
         Desktop.discoverer.removePropertyChangeListener(thisListener);
-        closeMenuItem_actionPerformed(null);
+        closeMenuItem_actionPerformed(true);
       }
       ;
     });
@@ -192,10 +493,8 @@ public class AlignFrame
   public void setGUINucleotide(boolean nucleotide)
   {
     showTranslation.setVisible( nucleotide );
-    //sequenceFeatures.setVisible(!nucleotide );
-    //featureSettings.setVisible( !nucleotide );
-    conservationMenuItem.setVisible( !nucleotide );
-    modifyConservation.setVisible(   !nucleotide );
+    conservationMenuItem.setEnabled( !nucleotide );
+    modifyConservation.setEnabled(   !nucleotide );
 
     //Remember AlignFrame always starts as protein
     if(!nucleotide)
@@ -204,23 +503,46 @@ public class AlignFrame
     }
   }
 
-  public void comeBackLater(FeatureEvent evt)
-  {}
-
-  public void newFeatures(FeatureEvent evt)
+  /**
+   * Need to call this method when tabs are selected for multiple views,
+   * or when loading from Jalview2XML.java
+   * @param av AlignViewport
+   */
+  void setMenusFromViewport(AlignViewport av)
   {
-    if (evt.getFeatures().length > 0)
-    {
-      alignPanel.seqPanel.seqCanvas.fr.featuresAdded();
-      alignPanel.repaint();
-    }
+    padGapsMenuitem.setSelected(av.padGaps);
+    colourTextMenuItem.setSelected(av.showColourText);
+    abovePIDThreshold.setSelected(av.getAbovePIDThreshold());
+    conservationMenuItem.setSelected(av.getConservationSelected());
+    seqLimits.setSelected(av.getShowJVSuffix());
+    idRightAlign.setSelected(av.rightAlignIds);
+    renderGapsMenuItem.setSelected(av.renderGaps);
+    wrapMenuItem.setSelected(av.wrapAlignment);
+    scaleAbove.setVisible(av.wrapAlignment);
+    scaleLeft.setVisible(av.wrapAlignment);
+    scaleRight.setVisible(av.wrapAlignment);
+    annotationPanelMenuItem.setState(av.showAnnotation);
+    viewBoxesMenuItem.setSelected(av.showBoxes);
+    viewTextMenuItem.setSelected(av.showText);
+
+    setColourSelected(ColourSchemeProperty.
+                      getColourName(av.getGlobalColourScheme()));
+
+    showSeqFeatures.setSelected(av.showSequenceFeatures);
+    hiddenMarkers.setState(av.showHiddenMarkers);
+    applyToAllGroups.setState(av.colourAppliesToAllGroups);
+
+    updateEditMenuBar();
   }
 
+
   Hashtable progressBars;
   public void setProgressBar(String message, long id)
   {
     if(progressBars == null)
+    {
       progressBars = new Hashtable();
+    }
 
     JPanel progressPanel;
     GridLayout layout = (GridLayout) statusPanel.getLayout();
@@ -231,7 +553,9 @@ public class AlignFrame
        progressBars.remove( progressPanel );
        progressPanel = null;
        if(message!=null)
+      {
          statusBar.setText(message);
+      }
 
        layout.setRows(layout.getRows() - 1);
      }
@@ -255,6 +579,8 @@ public class AlignFrame
   }
 
 
+
+
   /*
    Added so Castor Mapping file can obtain Jalview Version
   */
@@ -279,6 +605,52 @@ public class AlignFrame
     Desktop.instance.inputLocalFileMenuItem_actionPerformed(viewport);
   }
 
+  public void reload_actionPerformed(ActionEvent e)
+  {
+    if(fileName!=null)
+    {
+      if(currentFileFormat.equals("Jalview"))
+      {
+        JInternalFrame [] frames = Desktop.desktop.getAllFrames();
+        for(int i=0; i<frames.length; i++)
+        {
+          if (frames[i] instanceof AlignFrame
+              && frames[i] != this
+              && ( (AlignFrame) frames[i]).fileName.equals(fileName))
+          {
+            try
+            {
+              frames[i].setSelected(true);
+              Desktop.instance.closeAssociatedWindows();
+          }
+            catch (java.beans.PropertyVetoException ex)
+            {}
+          }
+
+        }
+        Desktop.instance.closeAssociatedWindows();
+
+        FileLoader loader = new FileLoader();
+        String protocol = fileName.startsWith("http:")? "URL":"File";
+        loader.LoadFile(viewport, fileName, protocol, currentFileFormat);
+      }
+      else
+      {
+        Rectangle bounds = this.getBounds();
+
+        FileLoader loader = new FileLoader();
+        String protocol = fileName.startsWith("http:") ? "URL" : "File";
+        AlignFrame newframe =
+            loader.LoadFileWaitTillLoaded(fileName, protocol, currentFileFormat);
+
+        newframe.setBounds(bounds);
+
+        this.closeMenuItem_actionPerformed(true);
+      }
+    }
+  }
+
+
   public void addFromText_actionPerformed(ActionEvent e)
   {
     Desktop.instance.inputTextboxMenuItem_actionPerformed(viewport);
@@ -289,12 +661,28 @@ public class AlignFrame
     Desktop.instance.inputURLMenuItem_actionPerformed(viewport);
   }
 
+
+  public void save_actionPerformed(ActionEvent e)
+  {
+    if(fileName==null
+       || currentFileFormat==null
+       || fileName.startsWith("http")
+        )
+    {
+      saveAs_actionPerformed(null);
+    }
+    else
+    {
+      saveAlignment(fileName, currentFileFormat);
+  }
+  }
+
   /**
    * DOCUMENT ME!
    *
    * @param e DOCUMENT ME!
    */
-  public void saveAlignmentMenu_actionPerformed(ActionEvent e)
+  public void saveAs_actionPerformed(ActionEvent e)
   {
     JalviewFileChooser chooser = new JalviewFileChooser(jalview.bin.Cache.
         getProperty( "LAST_DIRECTORY"),
@@ -315,7 +703,6 @@ public class AlignFrame
     if (value == JalviewFileChooser.APPROVE_OPTION)
     {
         currentFileFormat = chooser.getSelectedFormat();
-
         if (currentFileFormat == null)
         {
           JOptionPane.showInternalMessageDialog(Desktop.desktop,
@@ -326,18 +713,21 @@ public class AlignFrame
           return;
         }
 
+        fileName = chooser.getSelectedFile().getPath();
+
       jalview.bin.Cache.setProperty("DEFAULT_FILE_FORMAT",
                                     currentFileFormat);
 
-      String choice = chooser.getSelectedFile().getPath();
-      jalview.bin.Cache.setProperty("LAST_DIRECTORY", choice);
+      jalview.bin.Cache.setProperty("LAST_DIRECTORY", fileName);
 
-      saveAlignment(choice, currentFileFormat);
+      saveAlignment(fileName, currentFileFormat);
     }
   }
 
   public boolean saveAlignment(String file, String format)
   {
+    boolean success = true;
+
     if (format.equalsIgnoreCase("Jalview"))
     {
       String shortName = title;
@@ -348,10 +738,12 @@ public class AlignFrame
             java.io.File.separatorChar) + 1);
       }
 
-      new Jalview2XML().SaveAlignment(this, file, shortName);
+      success = new Jalview2XML().SaveAlignment(this, file, shortName);
+
+      statusBar.setText("Successfully saved to file: "
+                          +fileName+" in "
+                          +format +" format.");
 
-      // USE Jalview2XML to save this file
-      return true;
     }
     else
     {
@@ -367,8 +759,10 @@ public class AlignFrame
             JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
 
         if (reply == JOptionPane.YES_OPTION)
+        {
           omitHidden = viewport.getViewAsString(false);
       }
+      }
 
       String output = new FormatAdapter().formatSequences(
           format,
@@ -377,25 +771,39 @@ public class AlignFrame
 
       if (output == null)
       {
-        return false;
-      }
-
-      try
-      {
-        java.io.PrintWriter out = new java.io.PrintWriter(
-            new java.io.FileWriter(file));
-
-        out.print(output);
-        out.close();
-        this.setTitle(file);
-        return true;
+        success = false;
       }
-      catch (Exception ex)
+      else
       {
-        ex.printStackTrace();
+        try
+        {
+          java.io.PrintWriter out = new java.io.PrintWriter(
+              new java.io.FileWriter(file));
+
+          out.print(output);
+          out.close();
+          this.setTitle(file);
+          statusBar.setText("Successfully saved to file: "
+                            + fileName + " in "
+                            + format + " format.");
+        }
+        catch (Exception ex)
+        {
+          success = false;
+          ex.printStackTrace();
+        }
       }
     }
-    return false;
+
+    if (!success)
+    {
+      JOptionPane.showInternalMessageDialog(
+          this, "Couldn't save file: " + fileName,
+          "Error Saving File",
+          JOptionPane.WARNING_MESSAGE);
+    }
+
+    return success;
   }
 
   /**
@@ -422,6 +830,7 @@ public class AlignFrame
     }
 
     CutAndPasteTransfer cap = new CutAndPasteTransfer();
+    cap.setForInput(null);
     Desktop.addInternalFrame(cap,
                              "Alignment output - " + e.getActionCommand(), 600,
                              500);
@@ -470,6 +879,13 @@ public class AlignFrame
     alignPanel.makeEPS(f);
   }
 
+
+  public void pageSetup_actionPerformed(ActionEvent e)
+  {
+    PrinterJob printJob = PrinterJob.getPrinterJob();
+    PrintThread.pf = printJob.pageDialog(printJob.defaultPage());
+  }
+
   /**
    * DOCUMENT ME!
    *
@@ -478,7 +894,7 @@ public class AlignFrame
   public void printMenuItem_actionPerformed(ActionEvent e)
   {
     //Putting in a thread avoids Swing painting problems
-    PrintThread thread = new PrintThread();
+    PrintThread thread = new PrintThread(alignPanel);
     thread.start();
   }
 
@@ -492,7 +908,8 @@ public class AlignFrame
   {
     new AnnotationExporter().exportAnnotations(
       alignPanel,
-      viewport.alignment.getAlignmentAnnotation()
+        viewport.showAnnotation ? viewport.alignment.getAlignmentAnnotation() : null,
+      viewport.alignment.getGroups()
         );
   }
 
@@ -518,34 +935,83 @@ public class AlignFrame
 
   }
 
+
   /**
    * DOCUMENT ME!
    *
    * @param e DOCUMENT ME!
    */
-  public void closeMenuItem_actionPerformed(ActionEvent e)
+  public void closeMenuItem_actionPerformed(boolean closeAllTabs)
   {
+    if(alignPanels!=null && alignPanels.size()<2)
+    {
+      closeAllTabs = true;
+    }
+
     try
     {
-      PaintRefresher.components.remove(viewport.alignment);
-      this.setClosed(true);
+      if(alignPanels!=null)
+      {
+        if (closeAllTabs)
+        {
+          for (int i = 0; i < alignPanels.size(); i++)
+          {
+            AlignmentPanel ap = (AlignmentPanel) alignPanels.elementAt(i);
+            jalview.structure.StructureSelectionManager.getStructureSelectionManager()
+                .removeStructureViewerListener(ap.seqPanel, null);
+            PaintRefresher.RemoveComponent(ap.seqPanel.seqCanvas);
+            PaintRefresher.RemoveComponent(ap.idPanel.idCanvas);
+            PaintRefresher.RemoveComponent(ap);
+            ap.av.alignment = null;
+          }
+        }
+        else
+        {
+          int index = tabbedPane.getSelectedIndex();
+
+          alignPanels.removeElement(alignPanel);
+          PaintRefresher.RemoveComponent(alignPanel.seqPanel.seqCanvas);
+          PaintRefresher.RemoveComponent(alignPanel.idPanel.idCanvas);
+          PaintRefresher.RemoveComponent(alignPanel);
+          viewport.alignment = null;
+          alignPanel = null;
+          viewport = null;
+
+          tabbedPane.removeTabAt(index);
+          tabbedPane.validate();
+
+          if(index==tabbedPane.getTabCount())
+          {
+            index --;
+          }
+
+          this.tabSelectionChanged(index);
+        }
+      }
+
+      if (closeAllTabs)
+      {
+        this.setClosed(true);
+    }
     }
     catch (Exception ex)
     {
+      ex.printStackTrace();
     }
   }
 
+
   /**
    * DOCUMENT ME!
    */
   void updateEditMenuBar()
   {
-    if (historyList.size() > 0)
+
+    if (viewport.historyList.size() > 0)
     {
       undoMenuItem.setEnabled(true);
-
-      HistoryItem hi = (HistoryItem) historyList.peek();
-      undoMenuItem.setText("Undo " + hi.getDescription());
+      CommandI command = (CommandI) viewport.historyList.peek();
+      undoMenuItem.setText("Undo " + command.getDescription());
     }
     else
     {
@@ -553,12 +1019,12 @@ public class AlignFrame
       undoMenuItem.setText("Undo");
     }
 
-    if (redoList.size() > 0)
+    if (viewport.redoList.size() > 0)
     {
       redoMenuItem.setEnabled(true);
 
-      HistoryItem hi = (HistoryItem) redoList.peek();
-      redoMenuItem.setText("Redo " + hi.getDescription());
+      CommandI command = (CommandI) viewport.redoList.peek();
+      redoMenuItem.setText("Redo " + command.getDescription());
     }
     else
     {
@@ -567,18 +1033,20 @@ public class AlignFrame
     }
   }
 
-  /**
-   * DOCUMENT ME!
-   *
-   * @param hi DOCUMENT ME!
-   */
-  public void addHistoryItem(HistoryItem hi)
+
+  public void addHistoryItem(CommandI command)
   {
-    historyList.push(hi);
-    redoList.clear();
-    updateEditMenuBar();
+    if(command.getSize()>0)
+    {
+      viewport.historyList.push(command);
+      viewport.redoList.clear();
+      updateEditMenuBar();
+      viewport.hasHiddenColumns = viewport.colSel.getHiddenColumns() != null;
+    }
   }
 
+
+
   /**
    * DOCUMENT ME!
    *
@@ -586,13 +1054,20 @@ public class AlignFrame
    */
   protected void undoMenuItem_actionPerformed(ActionEvent e)
   {
-    HistoryItem nh,hi = (HistoryItem) historyList.pop();
-    redoList.push(nh=new HistoryItem(hi.getDescription(), viewport.alignment,
-                                  HistoryItem.HIDE));
-    if (hi.alColumnChanges!=null)
-      nh.alColumnChanges = hi.alColumnChanges.getInverse();
-    restoreHistoryItem(hi);
-    viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
+    CommandI command = (CommandI)viewport.historyList.pop();
+    viewport.redoList.push(command);
+    command.undoCommand();
+
+    AlignViewport originalSource = getOriginatingSource(command);
+    updateEditMenuBar();
+
+    if(originalSource!=null)
+    {
+      originalSource.hasHiddenColumns = viewport.colSel.getHiddenColumns() != null;
+      originalSource.firePropertyChange("alignment",
+                                        null,
+                                        originalSource.alignment.getSequences());
+    }
   }
 
   /**
@@ -602,26 +1077,67 @@ public class AlignFrame
    */
   protected void redoMenuItem_actionPerformed(ActionEvent e)
   {
-    HistoryItem nh,hi = (HistoryItem) redoList.pop();
-    historyList.push(nh=new HistoryItem(hi.getDescription(), viewport.alignment,
-        HistoryItem.HIDE)); 
-    if (hi.alColumnChanges!=null)
-      nh.alColumnChanges=hi.alColumnChanges.getInverse();
-    restoreHistoryItem(hi);
+    if(viewport.redoList.size()<1)
+    {
+      return;
+    }
+
+    CommandI command = (CommandI) viewport.redoList.pop();
+    viewport.historyList.push(command);
+    command.doCommand();
+
+    AlignViewport originalSource = getOriginatingSource(command);
     updateEditMenuBar();
-    viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
+
+    if(originalSource!=null)
+    {
+      originalSource.hasHiddenColumns = viewport.colSel.getHiddenColumns() != null;
+      originalSource.firePropertyChange("alignment",
+                                        null,
+                                        originalSource.alignment.getSequences());
+    }
   }
 
-  // used by undo and redo
-  void restoreHistoryItem(HistoryItem hi)
+  AlignViewport getOriginatingSource(CommandI command)
   {
+    AlignViewport originalSource = null;
+    //For sequence removal and addition, we need to fire
+   //the property change event FROM the viewport where the
+   //original alignment was altered
+    AlignmentI al=null;
+    if (command instanceof EditCommand)
+    {
+      EditCommand editCommand = (EditCommand) command;
+      al = editCommand.getAlignment();
+      Vector comps = (Vector) PaintRefresher.components
+          .get(viewport.getSequenceSetId());
 
-    hi.restore(viewport.getColumnSelection());
+      for (int i = 0; i < comps.size(); i++)
+      {
+        if (comps.elementAt(i) instanceof AlignmentPanel)
+        {
+          if (al == ( (AlignmentPanel) comps.elementAt(i)).av.alignment)
+          {
+            originalSource = ( (AlignmentPanel) comps.elementAt(i)).av;
+            break;
+          }
+        }
+      }
+    }
 
-    updateEditMenuBar();
+    if (originalSource == null)
+    {
+      //The original view is closed, we must validate
+      //the current view against the closed view first
+      if (al != null)
+      {
+        PaintRefresher.validateSequences(al, viewport.alignment);
+      }
 
-    viewport.firePropertyChange("alignment", null,
-                                viewport.getAlignment().getSequences());
+      originalSource = viewport;
+    }
+
+    return originalSource;
   }
 
   /**
@@ -644,14 +1160,14 @@ public class AlignFrame
       {
         SequenceI seq = viewport.alignment.getSequenceAt(i);
 
-        if (!sg.getSequences(false).contains(seq))
+        if (!sg.getSequences(null).contains(seq))
         {
           continue;
         }
 
         SequenceI temp = viewport.alignment.getSequenceAt(i - 1);
 
-        if (sg.getSequences(false).contains(temp))
+        if (sg.getSequences(null).contains(temp))
         {
           continue;
         }
@@ -666,14 +1182,14 @@ public class AlignFrame
       {
         SequenceI seq = viewport.alignment.getSequenceAt(i);
 
-        if (!sg.getSequences(false).contains(seq))
+        if (!sg.getSequences(null).contains(seq))
         {
           continue;
         }
 
         SequenceI temp = viewport.alignment.getSequenceAt(i + 1);
 
-        if (sg.getSequences(false).contains(temp))
+        if (sg.getSequences(null).contains(temp))
         {
           continue;
         }
@@ -683,11 +1199,102 @@ public class AlignFrame
       }
     }
 
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
 
 
+
+  synchronized void slideSequences(boolean right, int size)
+  {
+    Vector sg = new Vector();
+    if(viewport.cursorMode)
+    {
+      sg.addElement(viewport.alignment.getSequenceAt(
+          alignPanel.seqPanel.seqCanvas.cursorY));
+    }
+    else if(viewport.getSelectionGroup()!=null
+        && viewport.getSelectionGroup().getSize()!=viewport.alignment.getHeight())
+   {
+     sg = viewport.getSelectionGroup().getSequences(
+         viewport.hiddenRepSequences);
+   }
+
+    if(sg.size()<1)
+    {
+      return;
+    }
+
+    Vector invertGroup = new Vector();
+
+    for (int i = 0; i < viewport.alignment.getHeight(); i++)
+    {
+      if(!sg.contains(viewport.alignment.getSequenceAt(i)))
+         invertGroup.add(viewport.alignment.getSequenceAt(i));
+    }
+
+    SequenceI[] seqs1 = new SequenceI[sg.size()];
+    for (int i = 0; i < sg.size(); i++)
+      seqs1[i] = (SequenceI) sg.elementAt(i);
+
+    SequenceI[] seqs2 = new SequenceI[invertGroup.size()];
+    for (int i = 0; i < invertGroup.size(); i++)
+      seqs2[i] = (SequenceI) invertGroup.elementAt(i);
+
+    SlideSequencesCommand ssc;
+    if (right)
+      ssc = new SlideSequencesCommand("Slide Sequences",
+                                      seqs2, seqs1, size,
+                                      viewport.getGapCharacter()
+          );
+    else
+      ssc = new SlideSequencesCommand("Slide Sequences",
+                                      seqs1, seqs2, size,
+                                      viewport.getGapCharacter()
+          );
+
+    int groupAdjustment = 0;
+    if (ssc.getGapsInsertedBegin() && right)
+    {
+      if (viewport.cursorMode)
+        alignPanel.seqPanel.moveCursor(size, 0);
+      else
+        groupAdjustment = size;
+    }
+    else if (!ssc.getGapsInsertedBegin() && !right)
+    {
+      if (viewport.cursorMode)
+        alignPanel.seqPanel.moveCursor( -size, 0);
+      else
+        groupAdjustment = -size;
+    }
+
+    if (groupAdjustment != 0)
+    {
+      viewport.getSelectionGroup().setStartRes(
+          viewport.getSelectionGroup().getStartRes() + groupAdjustment);
+      viewport.getSelectionGroup().setEndRes(
+          viewport.getSelectionGroup().getEndRes() + groupAdjustment);
+    }
+
+
+    boolean appendHistoryItem = false;
+    if(viewport.historyList!=null
+       && viewport.historyList.size()>0
+      && viewport.historyList.peek() instanceof SlideSequencesCommand)
+    {
+      appendHistoryItem = ssc.appendSlideCommand(
+          (SlideSequencesCommand)viewport.historyList.peek())
+          ;
+    }
+
+    if(!appendHistoryItem)
+      addHistoryItem(ssc);
+
+    repaint();
+  }
+
+
   /**
    * DOCUMENT ME!
    *
@@ -695,6 +1302,7 @@ public class AlignFrame
    */
   protected void copy_actionPerformed(ActionEvent e)
   {
+    System.gc();
     if (viewport.getSelectionGroup() == null)
     {
       return;
@@ -713,28 +1321,61 @@ public class AlignFrame
         seqs,
         omitHidden);
 
+    StringSelection ss = new StringSelection(output);
+
+    try
+    {
+      jalview.gui.Desktop.internalCopy = true;
+      //Its really worth setting the clipboard contents
+      //to empty before setting the large StringSelection!!
+      Toolkit.getDefaultToolkit().getSystemClipboard()
+          .setContents(new StringSelection(""), null);
 
-    Toolkit.getDefaultToolkit().getSystemClipboard()
-        .setContents(new StringSelection(output), Desktop.instance);
+      Toolkit.getDefaultToolkit().getSystemClipboard()
+          .setContents(ss, Desktop.instance);
+    }
+    catch (OutOfMemoryError er)
+    {
+      er.printStackTrace();
+      javax.swing.SwingUtilities.invokeLater(new Runnable()
+          {
+            public void run()
+            {
+              javax.swing.JOptionPane.showInternalMessageDialog(Desktop.desktop,
+                  "Out of memory copying region!!"
+                  +
+                  "\nSee help files for increasing Java Virtual Machine memory."
+                  , "Out of memory",
+                  javax.swing.JOptionPane.WARNING_MESSAGE);
+            }
+          });
+
+      return;
+    }
 
     Vector hiddenColumns = null;
     if(viewport.hasHiddenColumns)
     {
       hiddenColumns =new Vector();
       int hiddenOffset = viewport.getSelectionGroup().getStartRes();
-      for(int i=0; i<viewport.getColumnSelection().getHiddenColumns().size(); i++)
+      for (int i = 0; i < viewport.getColumnSelection().getHiddenColumns().size();
+           i++)
       {
         int[] region = (int[])
             viewport.getColumnSelection().getHiddenColumns().elementAt(i);
 
-        hiddenColumns.addElement(new int[]{region[0]-hiddenOffset,
+        hiddenColumns.addElement(new int[]
+                                 {region[0] - hiddenOffset,
                           region[1]-hiddenOffset});
       }
     }
 
-    Desktop.jalviewClipboard = new Object[]{ seqs,
+    Desktop.jalviewClipboard = new Object[]
+        {
+        seqs,
         viewport.alignment.getDataset(),
         hiddenColumns};
+    statusBar.setText("Copied "+seqs.length+" sequences to clipboard.");
   }
 
   /**
@@ -754,8 +1395,6 @@ public class AlignFrame
    */
   protected void pasteThis_actionPerformed(ActionEvent e)
   {
-    addHistoryItem(new HistoryItem("Paste Sequences", viewport.alignment,
-                                   HistoryItem.PASTE));
     paste(false);
   }
 
@@ -776,11 +1415,37 @@ public class AlignFrame
         return;
       }
 
-      String str = (String) contents.getTransferData(DataFlavor.stringFlavor);
-      if(str.length()<1)
+      String str, format;
+      try
+      {
+        str = (String) contents.getTransferData(DataFlavor.stringFlavor);
+        if (str.length() < 1)
+        {
+          return;
+        }
+
+        format = new IdentifyFile().Identify(str, "Paste");
+
+      }
+      catch (OutOfMemoryError er)
+      {
+        er.printStackTrace();
+        javax.swing.SwingUtilities.invokeLater(new Runnable()
+        {
+          public void run()
+          {
+            javax.swing.JOptionPane.showInternalMessageDialog(Desktop.desktop,
+                "Out of memory pasting sequences!!"
+                +
+                "\nSee help files for increasing Java Virtual Machine memory."
+                , "Out of memory",
+                javax.swing.JOptionPane.WARNING_MESSAGE);
+          }
+        });
+
         return;
+      }
 
-      String format = new IdentifyFile().Identify(str, "Paste");
       SequenceI[] sequences;
 
 
@@ -792,35 +1457,53 @@ public class AlignFrame
      }
      else
      {
-       sequences = new FormatAdapter().readFile(str, "Paste", format);
+        sequences = new FormatAdapter().readFile(str, "Paste", format).
+            getSequencesArray();
      }
 
      AlignmentI alignment = null;
 
       if (newAlignment)
       {
-        alignment = new Alignment(sequences);
-
-        if(Desktop.jalviewClipboard!=null)
-           alignment.setDataset( (Alignment)Desktop.jalviewClipboard[1] );
-        else
-           alignment.setDataset( null );
+          alignment = new Alignment(sequences);
 
+          if (Desktop.jalviewClipboard != null)
+        {
+            alignment.setDataset( (Alignment) Desktop.jalviewClipboard[1]);
+        }
+          else
+        {
+            alignment.setDataset(null);
+      }
       }
       else
       {
         alignment = viewport.getAlignment();
 
         //!newAlignment
+        SequenceI [] newseqs = new SequenceI[sequences.length];
         for (int i = 0; i < sequences.length; i++)
         {
-          Sequence newseq = new Sequence(sequences[i].getName(),
-              sequences[i].getSequence(), sequences[i].getStart(),
+          newseqs[i] = new Sequence(sequences[i].getName(),
+                                    sequences[i].getSequence(),
+                                    sequences[i].getStart(),
               sequences[i].getEnd());
 
-          alignment.addSequence(newseq);
+          alignment.addSequence(newseqs[i]);
         }
 
+        /*
+         //ADD HISTORY ITEM
+         */
+        addHistoryItem(new EditCommand(
+            "Add sequences",
+            EditCommand.PASTE,
+            newseqs,
+            0,
+            alignment.getWidth(),
+            alignment)
+            );
+
 
         viewport.setEndSeq(alignment.getHeight());
         alignment.getWidth();
@@ -829,8 +1512,6 @@ public class AlignFrame
 
 
 
-
-
       // Add any annotations attached to sequences
       for (int i = 0; i < sequences.length; i++)
      {
@@ -862,7 +1543,7 @@ public class AlignFrame
 
      if(newAlignment)
      {
-       AlignFrame af = new AlignFrame(alignment);
+       AlignFrame af = new AlignFrame(alignment, DEFAULT_WIDTH, DEFAULT_HEIGHT);
        String newtitle = new String("Copied sequences");
 
        if(Desktop.jalviewClipboard!=null && Desktop.jalviewClipboard[2]!=null)
@@ -890,8 +1571,8 @@ public class AlignFrame
          newtitle = newtitle.concat("- from " + title);
        }
 
-       Desktop.addInternalFrame(af, newtitle, NEW_WINDOW_WIDTH,
-                                NEW_WINDOW_HEIGHT);
+       Desktop.addInternalFrame(af, newtitle, DEFAULT_WIDTH,
+                                DEFAULT_HEIGHT);
 
      }
 
@@ -923,72 +1604,49 @@ public class AlignFrame
    *
    * @param e DOCUMENT ME!
    */
-  protected void delete_actionPerformed(ActionEvent e)
+  protected void delete_actionPerformed(ActionEvent evt)
   {
 
-    if (viewport.getSelectionGroup() == null)
+    SequenceGroup sg = viewport.getSelectionGroup();
+    if (sg == null)
     {
       return;
     }
 
-
-    SequenceGroup sg = viewport.getSelectionGroup();
-
-
-
-    //Jalview no longer allows deletion of residues.
-    //Check here whether any residues are in selection area
-   /* if( sg.getEndRes()-sg.getStartRes() < viewport.alignment.getWidth()-1)
+    Vector seqs = new Vector();
+    SequenceI seq;
+    for (int i = 0; i < sg.getSize(); i++)
     {
-      for (int i = 0; i < sg.sequences.size(); i++)
-      {
-        SequenceI seq = sg.getSequenceAt(i);
-        int j = sg.getStartRes();
-        do
-        {
-          if (!jalview.util.Comparison.isGap(seq.getCharAt(j)))
-          {
-            JOptionPane.showInternalMessageDialog(
-                Desktop.desktop, "Cannot delete residues from alignment!\n"
-                + "Try hiding columns instead.",
-                "Deletion of residues not permitted",
-                JOptionPane.WARNING_MESSAGE);
-
-            return;
-          }
-          j++;
-        }while(j<=sg.getEndRes());
-      }
-    }*/
+      seq = sg.getSequenceAt(i);
+      seqs.addElement(seq);
+    }
 
 
-    addHistoryItem(new HistoryItem("Delete Sequences", viewport.alignment,
-                                   HistoryItem.HIDE));
+   // If the cut affects all sequences, remove highlighted columns
+   if (sg.getSize() == viewport.alignment.getHeight())
+   {
+     viewport.getColumnSelection().removeElements(sg.getStartRes(),
+         sg.getEndRes() + 1);
+   }
 
 
-    for (int i = 0; i < sg.getSize(false); i++)
+    SequenceI [] cut = new SequenceI[seqs.size()];
+    for(int i=0; i<seqs.size(); i++)
     {
-      SequenceI seq = sg.getSequenceAt(i);
-      int index = viewport.getAlignment().findIndex(seq);
+      cut[i] = (SequenceI)seqs.elementAt(i);
+    }
 
-      seq.deleteChars(sg.getStartRes(), sg.getEndRes() + 1);
 
-      // If the cut affects all sequences, remove highlighted columns
-      if (sg.getSize(false) == viewport.alignment.getHeight())
-      {
-        viewport.getColumnSelection().removeElements(sg.getStartRes(),
-            sg.getEndRes() + 1);
-      }
+    /*
+    //ADD HISTORY ITEM
+    */
+    addHistoryItem(new EditCommand("Cut Sequences",
+                                      EditCommand.CUT,
+                                      cut,
+                                      sg.getStartRes(),
+                                      sg.getEndRes()-sg.getStartRes()+1,
+                                      viewport.alignment));
 
-      if (seq.getSequence().length() < 1)
-      {
-        viewport.getAlignment().deleteSequence(seq);
-      }
-      else
-      {
-        viewport.getAlignment().getSequences().setElementAt(seq, index);
-      }
-    }
 
     viewport.setSelectionGroup(null);
     viewport.alignment.deleteGroup(sg);
@@ -996,8 +1654,6 @@ public class AlignFrame
     viewport.firePropertyChange("alignment", null,
                                   viewport.getAlignment().getSequences());
 
-
-
     if (viewport.getAlignment().getHeight() < 1)
     {
       try
@@ -1018,8 +1674,10 @@ public class AlignFrame
   protected void deleteGroups_actionPerformed(ActionEvent e)
   {
     viewport.alignment.deleteAllGroups();
+    viewport.sequenceColours = null;
     viewport.setSelectionGroup(null);
-    alignPanel.repaint();
+    PaintRefresher.Refresh(this, viewport.getSequenceSetId());
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1039,7 +1697,8 @@ public class AlignFrame
 
     sg.setEndRes(viewport.alignment.getWidth() - 1);
     viewport.setSelectionGroup(sg);
-    PaintRefresher.Refresh(null, viewport.alignment);
+    alignPanel.paintAlignment(true);
+    PaintRefresher.Refresh(alignPanel, viewport.getSequenceSetId());
   }
 
   /**
@@ -1059,8 +1718,8 @@ public class AlignFrame
     viewport.setSelectionGroup(null);
     alignPanel.seqPanel.seqCanvas.highlightSearchResults(null);
     alignPanel.idPanel.idCanvas.searchResults = null;
-    alignPanel.repaint();
-    PaintRefresher.Refresh(null, viewport.alignment);
+    alignPanel.paintAlignment(true);
+    PaintRefresher.Refresh(alignPanel, viewport.getSequenceSetId());
   }
 
   /**
@@ -1085,13 +1744,15 @@ public class AlignFrame
       sg.addOrRemove(viewport.getAlignment().getSequenceAt(i), false);
     }
 
-    PaintRefresher.Refresh(null, viewport.alignment);
+    alignPanel.paintAlignment(true);
+
+    PaintRefresher.Refresh(alignPanel, viewport.getSequenceSetId());
   }
 
   public void invertColSel_actionPerformed(ActionEvent e)
   {
     viewport.invertColumnSelection();
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
 
@@ -1102,22 +1763,74 @@ public class AlignFrame
    */
   public void remove2LeftMenuItem_actionPerformed(ActionEvent e)
   {
+    trimAlignment(true);
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param e DOCUMENT ME!
+   */
+  public void remove2RightMenuItem_actionPerformed(ActionEvent e)
+  {
+      trimAlignment(false);
+  }
+
+  void trimAlignment(boolean trimLeft)
+  {
     ColumnSelection colSel = viewport.getColumnSelection();
+    int column;
 
     if (colSel.size() > 0)
     {
-      HistoryItem edit;
-      addHistoryItem(edit=new HistoryItem("Remove Left", viewport.alignment,
-                                     HistoryItem.HIDE));
+      if(trimLeft)
+      {
+        column = colSel.getMin();
+      }
+      else
+      {
+        column = colSel.getMax();
+      }
+
+      SequenceI [] seqs;
+      if(viewport.getSelectionGroup()!=null)
+      {
+        seqs = viewport.getSelectionGroup().getSequencesAsArray(viewport.
+            hiddenRepSequences);
+      }
+      else
+      {
+        seqs = viewport.alignment.getSequencesArray();
+      }
+
 
-      int min = colSel.getMin();
-      viewport.getAlignment().trimLeft(min);
-      colSel.compensateForEdit(0, min);
-      edit.addShift(0,min);
-      if (viewport.getSelectionGroup() != null)
+      TrimRegionCommand trimRegion;
+      if(trimLeft)
       {
-        viewport.getSelectionGroup().adjustForRemoveLeft(min);
+        trimRegion = new TrimRegionCommand("Remove Left",
+                                    TrimRegionCommand.TRIM_LEFT,
+                                    seqs,
+                                    column,
+                                    viewport.alignment,
+                                    viewport.colSel,
+                                    viewport.selectionGroup);
+        viewport.setStartRes(0);
       }
+     else
+     {
+       trimRegion = new TrimRegionCommand("Remove Right",
+                                   TrimRegionCommand.TRIM_RIGHT,
+                                   seqs,
+                                   column,
+                                   viewport.alignment,
+                                   viewport.colSel,
+                                   viewport.selectionGroup);
+     }
+
+     statusBar.setText("Removed "+trimRegion.getSize()+" columns.");
+
+
+      addHistoryItem(trimRegion);
 
       Vector groups = viewport.alignment.getGroups();
 
@@ -1125,13 +1838,15 @@ public class AlignFrame
       {
         SequenceGroup sg = (SequenceGroup) groups.get(i);
 
-        if (!sg.adjustForRemoveLeft(min))
+        if ( (trimLeft && !sg.adjustForRemoveLeft(column))
+            || (!trimLeft && !sg.adjustForRemoveRight(column)))
         {
           viewport.alignment.deleteGroup(sg);
         }
       }
 
-      viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
+      viewport.firePropertyChange("alignment", null,
+                                  viewport.getAlignment().getSequences());
     }
   }
 
@@ -1140,38 +1855,86 @@ public class AlignFrame
    *
    * @param e DOCUMENT ME!
    */
-  public void remove2RightMenuItem_actionPerformed(ActionEvent e)
+  public void removeGappedColumnMenuItem_actionPerformed(ActionEvent e)
   {
-    ColumnSelection colSel = viewport.getColumnSelection();
+    int start = 0, end = viewport.alignment.getWidth()-1;
 
-    if (colSel.size() > 0)
+    SequenceI[] seqs;
+    if (viewport.getSelectionGroup() != null)
+    {
+      seqs = viewport.getSelectionGroup().getSequencesAsArray(viewport.
+          hiddenRepSequences);
+      start = viewport.getSelectionGroup().getStartRes();
+      end = viewport.getSelectionGroup().getEndRes();
+    }
+    else
     {
-      addHistoryItem(new HistoryItem("Remove Right", viewport.alignment,
-                                     HistoryItem.HIDE));
+      seqs = viewport.alignment.getSequencesArray();
+    }
 
-      int max = colSel.getMax();
-      viewport.getAlignment().trimRight(max);
-      // TODO: delete hidden column entries in colSel to right of max
-      // TODO: record hidden columns in history for undo.
-      if (viewport.getSelectionGroup() != null)
-      {
-        viewport.getSelectionGroup().adjustForRemoveRight(max);
-      }
 
-      Vector groups = viewport.alignment.getGroups();
+    RemoveGapColCommand removeGapCols =
+        new RemoveGapColCommand("Remove Gapped Columns",
+                                seqs,
+                                start, end,
+                                viewport.alignment);
 
-      for (int i = 0; i < groups.size(); i++)
-      {
-        SequenceGroup sg = (SequenceGroup) groups.get(i);
+    addHistoryItem(removeGapCols);
 
-        if (!sg.adjustForRemoveRight(max))
-        {
-          viewport.alignment.deleteGroup(sg);
-        }
-      }
+    statusBar.setText("Removed "+removeGapCols.getSize()+" empty columns.");
+
+    //This is to maintain viewport position on first residue
+    //of first sequence
+    SequenceI seq = viewport.alignment.getSequenceAt(0);
+    int startRes = seq.findPosition(viewport.startRes);
+   // ShiftList shifts;
+   // viewport.getAlignment().removeGaps(shifts=new ShiftList());
+   // edit.alColumnChanges=shifts.getInverse();
+   // if (viewport.hasHiddenColumns)
+   //   viewport.getColumnSelection().compensateForEdits(shifts);
+   viewport.setStartRes(seq.findIndex(startRes)-1);
+    viewport.firePropertyChange("alignment", null,
+                                viewport.getAlignment().getSequences());
+
+  }
+
+  /**
+   * DOCUMENT ME!
+   *
+   * @param e DOCUMENT ME!
+   */
+  public void removeAllGapsMenuItem_actionPerformed(ActionEvent e)
+  {
+    int start = 0, end = viewport.alignment.getWidth()-1;
+
+    SequenceI[] seqs;
+    if (viewport.getSelectionGroup() != null)
+    {
+      seqs = viewport.getSelectionGroup().getSequencesAsArray(viewport.
+          hiddenRepSequences);
+      start = viewport.getSelectionGroup().getStartRes();
+      end = viewport.getSelectionGroup().getEndRes();
+    }
+    else
+    {
+      seqs = viewport.alignment.getSequencesArray();
+    }
+
+    //This is to maintain viewport position on first residue
+    //of first sequence
+    SequenceI seq = viewport.alignment.getSequenceAt(0);
+    int startRes = seq.findPosition(viewport.startRes);
+
+    addHistoryItem(new RemoveGapsCommand("Remove Gaps",
+                                         seqs,
+                                         start, end,
+                                         viewport.alignment));
+
+    viewport.setStartRes(seq.findIndex(startRes)-1);
+
+    viewport.firePropertyChange("alignment", null,
+                                viewport.getAlignment().getSequences());
 
-      viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
-    }
   }
 
   /**
@@ -1179,23 +1942,13 @@ public class AlignFrame
    *
    * @param e DOCUMENT ME!
    */
-  public void removeGappedColumnMenuItem_actionPerformed(ActionEvent e)
+  public void padGapsMenuitem_actionPerformed(ActionEvent e)
   {
-    HistoryItem edit;
-    addHistoryItem(edit=new HistoryItem("Remove Gapped Columns",
-                                   viewport.alignment, HistoryItem.HIDE));
+    viewport.padGaps = padGapsMenuitem.isSelected();
 
-    //This is to maintain viewport position on first residue
-    //of first sequence
-    SequenceI seq = viewport.alignment.getSequenceAt(0);
-    int startRes = seq.findPosition(viewport.startRes);
-    ShiftList shifts;
-    viewport.getAlignment().removeGaps(shifts=new ShiftList());
-    edit.alColumnChanges=shifts.getInverse();
-    if (viewport.hasHiddenColumns) 
-      viewport.getColumnSelection().compensateForEdits(shifts);
-    viewport.setStartRes(seq.findIndex(startRes)-1);
-   viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
+    viewport.firePropertyChange("alignment",
+                                null,
+                                viewport.getAlignment().getSequences());
   }
 
   /**
@@ -1203,173 +1956,72 @@ public class AlignFrame
    *
    * @param e DOCUMENT ME!
    */
-  public void removeAllGapsMenuItem_actionPerformed(ActionEvent e)
+  public void findMenuItem_actionPerformed(ActionEvent e)
   {
-    // TODO: hidden regions should not be touched by removeAllGaps - a minimal number of gaps will remain in alignment segments containing uneven length subsequences
-    // TODO: columnSelection.compensateforedits should be called (and passed to history item)
-    addHistoryItem(new HistoryItem("Remove Gaps", viewport.alignment,
-                                   HistoryItem.HIDE));
-
-    //This is to maintain viewport position on first residue
-    //of first sequence
-    SequenceI seq = viewport.alignment.getSequenceAt(0);
-    int startRes = seq.findPosition(viewport.startRes);
-
-
-    SequenceI current;
-    int jSize;
+    new Finder();
+  }
 
-    Vector seqs = null;
+  public void newView_actionPerformed(ActionEvent e)
+  {
+    AlignmentPanel newap =
+        new Jalview2XML().copyAlignPanel(alignPanel, true);
 
-    int start = 0;
-    int end = viewport.alignment.getWidth();
+    newap.av.gatherViewsHere = false;
 
-    if (viewport.getSelectionGroup() != null
-        && viewport.getSelectionGroup().getSequences(true) != null
-        && viewport.getSelectionGroup().getSize(true) > 0)
-    {
-      seqs = viewport.getSelectionGroup().getSequences(true);
-      start = viewport.getSelectionGroup().getStartRes();
-      end = viewport.getSelectionGroup().getEndRes()+1;
-    }
-    else
+    if (viewport.viewName == null)
     {
-      seqs = viewport.alignment.getSequences();
+      viewport.viewName = "Original";
     }
-    /* Commented out regions below are partial implementation of todo above.
-       * divide start,end into visible chunks, and for each:
-      int diff=end-start+1;
-      int diffmax=0;
-      int dr[] = new int[seqs.size()];
-      */
-     for (int i = 0; i < seqs.size(); i++)
-     {
-       current = (SequenceI) seqs.elementAt(i);
-       //dr[i]=
-       current.removeGaps(start, end);
-       /*if (d<diff) // can only shift 
-         diff=d;
-       if (diffmax<d)
-         diffmax=d;
-         */
-     }
-     /* // after the end of each chunk - 
-      * if (diff>0) {
-      // record shift for history.
-       editgaps.addShift(start, diff);
-       if (viewport.hasHiddenColumns && diffmax>diff) {
-       // pad sequence
-        StringBuffer gaps=new StringBuffer(diffmax);
-        for (int i=0,j=diffmax-diff; i<j; i++)
-        gaps.append(viewport.getGapCharacter());
-        for (int i=0, j=seqs.size(); i<j; i++) {
-        current = (SequenceI) seqs.elementAt(i);
-        if (dr[i]-diff>0) {
-        String sq = current.getSequence();
-        current.setSequence(sq.substring(0, hcend-dr[i])+gaps.substring(0, dr[i]-diff)+sq.substring()); 
-        }
-        }
-       } 
-       }*/
-
-    viewport.setStartRes(seq.findIndex(startRes)-1);
-
-    viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
-  }
-
- public void alignmentChanged()
- {
-   if(viewport.padGaps)
-     viewport.getAlignment().padGaps();
 
-   if(viewport.vconsensus!=null && viewport.autoCalculateConsensus)
-   {
-     viewport.updateConsensus();
-     viewport.updateConservation();
-   }
-
-   resetAllColourSchemes();
-   if(alignPanel.overviewPanel!=null)
-     alignPanel.overviewPanel.updateOverviewImage();
-
-   viewport.alignment.adjustSequenceAnnotations();
+    newap.av.historyList = viewport.historyList;
+    newap.av.redoList = viewport.redoList;
 
-   if(alignPanel.overviewPanel!=null)
-     alignPanel.overviewPanel.updateOverviewImage();
+    int index = Desktop.getViewCount(viewport.getSequenceSetId());
+    String newViewName = "View " +index;
 
-   alignPanel.repaint();
- }
-
-  void resetAllColourSchemes()
-  {
-    ColourSchemeI cs = viewport.globalColourScheme;
-    if(cs!=null)
+    Vector comps = (Vector) PaintRefresher.components.get(viewport.
+        getSequenceSetId());
+    Vector existingNames = new Vector();
+    for(int i=0; i<comps.size(); i++)
     {
-      if (cs instanceof ClustalxColourScheme)
+      if(comps.elementAt(i) instanceof AlignmentPanel)
       {
-        ( (ClustalxColourScheme) viewport.getGlobalColourScheme()).
-            resetClustalX(viewport.alignment.getSequences(),
-                          viewport.alignment.getWidth());
+        AlignmentPanel ap = (AlignmentPanel)comps.elementAt(i);
+        if(!existingNames.contains(ap.av.viewName))
+        {
+          existingNames.addElement(ap.av.viewName);
       }
+    }
+    }
 
-      cs.setConsensus(viewport.vconsensus);
-      if (cs.conservationApplied())
-      {
-        Alignment al = (Alignment) viewport.alignment;
-        Conservation c = new Conservation("All",
-                                          ResidueProperties.propHash, 3,
-                                          al.getSequences(), 0,
-                                          al.getWidth() - 1);
-        c.calculate();
-        c.verdict(false, viewport.ConsPercGaps);
-
-        cs.setConservation(c);
-      }
+    while(existingNames.contains(newViewName))
+    {
+      newViewName = "View "+ (++index);
     }
 
-    int s, sSize = viewport.alignment.getGroups().size();
-    for(s=0; s<sSize; s++)
+    newap.av.viewName = newViewName;
+
+    addAlignmentPanel(newap, false);
+
+    if(alignPanels.size()==2)
     {
-      SequenceGroup sg = (SequenceGroup)viewport.alignment.getGroups().elementAt(s);
-      if(sg.cs!=null && sg.cs instanceof ClustalxColourScheme)
-      {
-        ((ClustalxColourScheme)sg.cs).resetClustalX(
-            sg.getSequences(true), sg.getWidth());
-      }
-      sg.recalcConservation();
+      viewport.gatherViewsHere = true;
     }
+    tabbedPane.setSelectedIndex(tabbedPane.getTabCount() - 1);
   }
 
-  /**
-   * DOCUMENT ME!
-   *
-   * @param e DOCUMENT ME!
-   */
-  public void padGapsMenuitem_actionPerformed(ActionEvent e)
+  public void expandViews_actionPerformed(ActionEvent e)
   {
-    addHistoryItem(new HistoryItem("Pad Gaps", viewport.alignment,
-                                   HistoryItem.HIDE));
-
-    viewport.padGaps = padGapsMenuitem.isSelected();
-
-   // if (viewport.padGaps)
-    alignmentChanged();
+        Desktop.instance.explodeViews(this);
   }
 
-  /**
-   * DOCUMENT ME!
-   *
-   * @param e DOCUMENT ME!
-   */
-  public void findMenuItem_actionPerformed(ActionEvent e)
+  public void gatherViews_actionPerformed(ActionEvent e)
   {
-    JInternalFrame frame = new JInternalFrame();
-    Finder finder = new Finder(viewport, alignPanel, frame);
-    frame.setContentPane(finder);
-    frame.setLayer(JLayeredPane.PALETTE_LAYER);
-    Desktop.addInternalFrame(frame, "Find", 340, 110);
+    Desktop.instance.gatherViews(this);
   }
 
+
+
   /**
    * DOCUMENT ME!
    *
@@ -1380,13 +2032,6 @@ public class AlignFrame
     new FontChooser(alignPanel);
   }
 
-  public void smoothFont_actionPerformed(ActionEvent e)
-  {
-    viewport.antiAlias = smoothFont.isSelected();
-    alignPanel.annotationPanel.image = null;
-    alignPanel.repaint();
-  }
-
 
   /**
    * DOCUMENT ME!
@@ -1398,9 +2043,16 @@ public class AlignFrame
     viewport.setShowJVSuffix(seqLimits.isSelected());
 
     alignPanel.idPanel.idCanvas.setPreferredSize(alignPanel.calculateIdWidth());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
+  public void idRightAlign_actionPerformed(ActionEvent e)
+  {
+    viewport.rightAlignIds = idRightAlign.isSelected();
+    alignPanel.paintAlignment(true);
+  }
+
+
 
   /**
    * DOCUMENT ME!
@@ -1410,7 +2062,7 @@ public class AlignFrame
   protected void colourTextMenuItem_actionPerformed(ActionEvent e)
   {
     viewport.setColourText(colourTextMenuItem.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1441,12 +2093,13 @@ public class AlignFrame
   public void hideSelSequences_actionPerformed(ActionEvent e)
   {
     viewport.hideAllSelectedSeqs();
+    alignPanel.paintAlignment(true);
   }
 
   public void hideSelColumns_actionPerformed(ActionEvent e)
   {
     viewport.hideSelectedColumns();
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   public void hiddenMarkers_actionPerformed(ActionEvent e)
@@ -1463,7 +2116,7 @@ public class AlignFrame
   protected void scaleAbove_actionPerformed(ActionEvent e)
   {
     viewport.setScaleAboveWrapped(scaleAbove.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1474,7 +2127,7 @@ public class AlignFrame
   protected void scaleLeft_actionPerformed(ActionEvent e)
   {
     viewport.setScaleLeftWrapped(scaleLeft.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1485,7 +2138,7 @@ public class AlignFrame
   protected void scaleRight_actionPerformed(ActionEvent e)
   {
     viewport.setScaleRightWrapped(scaleRight.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1496,7 +2149,7 @@ public class AlignFrame
   public void viewBoxesMenuItem_actionPerformed(ActionEvent e)
   {
     viewport.setShowBoxes(viewBoxesMenuItem.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1507,7 +2160,7 @@ public class AlignFrame
   public void viewTextMenuItem_actionPerformed(ActionEvent e)
   {
     viewport.setShowText(viewTextMenuItem.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1518,7 +2171,7 @@ public class AlignFrame
   protected void renderGapsMenuItem_actionPerformed(ActionEvent e)
   {
     viewport.setRenderGaps(renderGapsMenuItem.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
   }
 
 
@@ -1541,7 +2194,7 @@ public class AlignFrame
   public void showSeqFeatures_actionPerformed(ActionEvent evt)
   {
     viewport.setShowSequenceFeatures(showSeqFeatures.isSelected());
-    alignPanel.repaint();
+    alignPanel.paintAlignment(true);
     if (alignPanel.getOverviewPanel() != null)
     {
       alignPanel.getOverviewPanel().updateOverviewImage();
@@ -1591,6 +2244,11 @@ public class AlignFrame
     alignPanel.setOverviewPanel(overview);
   }
 
+  public void textColour_actionPerformed(ActionEvent e)
+  {
+    new TextColourChooser().chooseColour(alignPanel, null);
+  }
+
   /**
    * DOCUMENT ME!
    *
@@ -1756,7 +2414,7 @@ public class AlignFrame
         cs.setConservation(null);
       }
 
-      cs.setConsensus(viewport.vconsensus);
+      cs.setConsensus(viewport.hconsensus);
     }
 
     viewport.setGlobalColourScheme(cs);
@@ -1778,7 +2436,7 @@ public class AlignFrame
         if (cs instanceof ClustalxColourScheme)
         {
           sg.cs = new ClustalxColourScheme(
-              sg.getSequences(true), sg.getWidth());
+              sg.getSequences(viewport.hiddenRepSequences), sg.getWidth());
         }
         else if (cs instanceof UserColourScheme)
         {
@@ -1803,34 +2461,43 @@ public class AlignFrame
                 viewport.getIgnoreGapsConsensus());
 
          sg.cs.setConsensus(AAFrequency.calculate(
-             sg.getSequences(true), 0,
-             sg.getWidth()));
+             sg.getSequences(viewport.hiddenRepSequences), sg.getStartRes(),
+             sg.getEndRes()+1));
        }
         else
+        {
           sg.cs.setThreshold(0, viewport.getIgnoreGapsConsensus());
+        }
 
 
         if (viewport.getConservationSelected())
         {
           Conservation c = new Conservation("Group",
                                             ResidueProperties.propHash, 3,
-                                            sg.getSequences(true), 0,
-                                            viewport.alignment.getWidth() - 1);
+                                            sg.getSequences(viewport.
+              hiddenRepSequences),
+                                            sg.getStartRes(),
+                                            sg.getEndRes()+1);
           c.calculate();
           c.verdict(false, viewport.ConsPercGaps);
           sg.cs.setConservation(c);
         }
         else
+        {
           sg.cs.setConservation(null);
       }
     }
+    }
 
     if (alignPanel.getOverviewPanel() != null)
     {
       alignPanel.getOverviewPanel().updateOverviewImage();
     }
 
-    alignPanel.repaint();
+
+
+
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -1940,7 +2607,8 @@ public class AlignFrame
 
       while (userColours.hasMoreElements())
       {
-        final JRadioButtonMenuItem radioItem = new JRadioButtonMenuItem(userColours.
+        final JRadioButtonMenuItem radioItem = new JRadioButtonMenuItem(
+            userColours.
             nextElement().toString());
         radioItem.setName("USER_DEFINED");
         radioItem.addMouseListener(new MouseAdapter()
@@ -1951,16 +2619,19 @@ public class AlignFrame
                 {
                   radioItem.removeActionListener(radioItem.getActionListeners()[0]);
 
-                  int option = JOptionPane.showInternalConfirmDialog(jalview.gui.Desktop.desktop,
+              int option = JOptionPane.showInternalConfirmDialog(jalview.gui.
+                  Desktop.desktop,
                       "Remove from default list?",
                       "Remove user defined colour",
                       JOptionPane.YES_NO_OPTION);
                   if(option == JOptionPane.YES_OPTION)
                   {
-                    jalview.gui.UserDefinedColours.removeColourFromDefaults(radioItem.getText());
+                jalview.gui.UserDefinedColours.removeColourFromDefaults(
+                    radioItem.getText());
                     colourMenu.remove(radioItem);
                   }
                   else
+              {
                     radioItem.addActionListener(new ActionListener()
                     {
                       public void actionPerformed(ActionEvent evt)
@@ -1970,6 +2641,7 @@ public class AlignFrame
                     });
                 }
               }
+          }
             });
         radioItem.addActionListener(new ActionListener()
         {
@@ -2012,11 +2684,12 @@ public class AlignFrame
    */
   public void sortPairwiseMenuItem_actionPerformed(ActionEvent e)
   {
-    addHistoryItem(new HistoryItem("Pairwise Sort", viewport.alignment,
-                                   HistoryItem.SORT));
+    SequenceI [] oldOrder = viewport.getAlignment().getSequencesArray();
     AlignmentSorter.sortByPID(viewport.getAlignment(),
                               viewport.getAlignment().getSequenceAt(0));
-    alignPanel.repaint();
+    addHistoryItem(new OrderCommand("Pairwise Sort", oldOrder,
+                                    viewport.alignment));
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -2026,10 +2699,10 @@ public class AlignFrame
    */
   public void sortIDMenuItem_actionPerformed(ActionEvent e)
   {
-    addHistoryItem(new HistoryItem("ID Sort", viewport.alignment,
-                                   HistoryItem.SORT));
+    SequenceI [] oldOrder = viewport.getAlignment().getSequencesArray();
     AlignmentSorter.sortByID(viewport.getAlignment());
-    alignPanel.repaint();
+    addHistoryItem(new OrderCommand("ID Sort", oldOrder, viewport.alignment));
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -2039,11 +2712,11 @@ public class AlignFrame
    */
   public void sortGroupMenuItem_actionPerformed(ActionEvent e)
   {
-    addHistoryItem(new HistoryItem("Group Sort", viewport.alignment,
-                                   HistoryItem.SORT));
-
+    SequenceI [] oldOrder = viewport.getAlignment().getSequencesArray();
     AlignmentSorter.sortByGroup(viewport.getAlignment());
-    alignPanel.repaint();
+    addHistoryItem(new OrderCommand("Group Sort", oldOrder, viewport.alignment));
+
+    alignPanel.paintAlignment(true);
   }
 
   /**
@@ -2065,7 +2738,7 @@ public class AlignFrame
   public void pairwiseAlignmentMenuItem_actionPerformed(ActionEvent e)
   {
     if ( (viewport.getSelectionGroup() == null) ||
-        (viewport.getSelectionGroup().getSize(false) < 2))
+        (viewport.getSelectionGroup().getSize() < 2))
     {
       JOptionPane.showInternalMessageDialog(this,
                                             "You must select at least 2 sequences.",
@@ -2088,8 +2761,8 @@ public class AlignFrame
   public void PCAMenuItem_actionPerformed(ActionEvent e)
   {
     if ( ( (viewport.getSelectionGroup() != null) &&
-          (viewport.getSelectionGroup().getSize(false) < 4) &&
-          (viewport.getSelectionGroup().getSize(false) > 0)) ||
+          (viewport.getSelectionGroup().getSize() < 4) &&
+          (viewport.getSelectionGroup().getSize() > 0)) ||
         (viewport.getAlignment().getHeight() < 4))
     {
       JOptionPane.showInternalMessageDialog(this,
@@ -2101,7 +2774,7 @@ public class AlignFrame
       return;
     }
 
-     new PCAPanel(viewport);
+     new PCAPanel(alignPanel);
   }
 
 
@@ -2110,7 +2783,9 @@ public class AlignFrame
     viewport.autoCalculateConsensus = autoCalculate.isSelected();
     if(viewport.autoCalculateConsensus)
     {
-      alignmentChanged();
+      viewport.firePropertyChange("alignment",
+                                  null,
+                                  viewport.getAlignment().getSequences());
     }
   }
 
@@ -2166,16 +2841,24 @@ public class AlignFrame
   {
     TreePanel tp;
 
-    if ( (viewport.getSelectionGroup() != null) &&
-        (viewport.getSelectionGroup().getSize(false) > 3))
+    if (viewport.getSelectionGroup() != null)
     {
+      if (viewport.getSelectionGroup().getSize() < 3)
+      {
+        JOptionPane.showMessageDialog(Desktop.desktop,
+                                      "You need to have more than two sequences selected to build a tree!",
+                                      "Not enough sequences",
+                                      JOptionPane.WARNING_MESSAGE);
+        return;
+      }
+
       int s = 0;
       SequenceGroup sg = viewport.getSelectionGroup();
 
       /* Decide if the selection is a column region */
-      while (s < sg.getSize(false))
+      while (s < sg.getSize())
       {
-        if ( ( (SequenceI) sg.getSequences(false).elementAt(s++)).getLength() <
+        if ( ( (SequenceI) sg.getSequences(null).elementAt(s++)).getLength() <
             sg.getEndRes())
         {
           JOptionPane.showMessageDialog(Desktop.desktop,
@@ -2190,7 +2873,7 @@ public class AlignFrame
       }
 
       title = title + " on region";
-      tp = new TreePanel(viewport, type, pwType);
+      tp = new TreePanel(alignPanel, type, pwType);
     }
     else
     {
@@ -2208,14 +2891,23 @@ public class AlignFrame
       }
 
       if(viewport.alignment.getHeight()<2)
+      {
         return;
+      }
 
-      tp = new TreePanel(viewport, type, pwType);
+      tp = new TreePanel(alignPanel, type, pwType);
+    }
+
+    title += " from ";
+
+    if(viewport.viewName!=null)
+    {
+      title+= viewport.viewName+" of ";
     }
 
-    addTreeMenuItem(tp, title);
+    title += this.title;
 
-    Desktop.addInternalFrame(tp, title + " from " + this.title, 600, 500);
+    Desktop.addInternalFrame(tp, title, 600, 500);
   }
 
   /**
@@ -2232,12 +2924,15 @@ public class AlignFrame
     {
       public void actionPerformed(ActionEvent e)
       {
-        addHistoryItem(new HistoryItem("Sort", viewport.alignment,
-                                       HistoryItem.SORT));
+        SequenceI [] oldOrder = viewport.getAlignment().getSequencesArray();
 
         // TODO: JBPNote - have to map order entries to curent SequenceI pointers
         AlignmentSorter.sortBy(viewport.getAlignment(), order);
-        alignPanel.repaint();
+
+        addHistoryItem(new OrderCommand(order.getName(), oldOrder,
+                                        viewport.alignment));
+
+        alignPanel.paintAlignment(true);
       }
     });
   }
@@ -2251,46 +2946,54 @@ public class AlignFrame
    * @param treePanel Displayed tree window.
    * @param title SortBy menu item title.
    */
-  void addTreeMenuItem(final TreePanel treePanel, String title)
+  public void buildTreeMenu()
   {
-    final JMenuItem item = new JMenuItem(title);
+    sortByTreeMenu.removeAll();
 
-    treeCount++;
-
-    if (treeCount == 1)
+    Vector comps = (Vector) PaintRefresher.components.get(viewport.
+        getSequenceSetId());
+    Vector treePanels = new Vector();
+    int i, iSize = comps.size();
+    for(i=0; i<iSize; i++)
     {
-      sort.add(sortByTreeMenu);
+      if(comps.elementAt(i) instanceof TreePanel)
+      {
+        treePanels.add(comps.elementAt(i));
+      }
     }
 
-    sortByTreeMenu.add(item);
-    item.addActionListener(new java.awt.event.ActionListener()
+    iSize = treePanels.size();
+
+    if(iSize<1)
     {
-      public void actionPerformed(ActionEvent e)
-      {
-        addHistoryItem(new HistoryItem("Tree Sort",
-                                       viewport.alignment, HistoryItem.SORT));
-        AlignmentSorter.sortByTree(viewport.getAlignment(),
-                                   treePanel.getTree());
-        alignPanel.repaint();
-      }
-    });
+      sortByTreeMenu.setVisible(false);
+      return;
+    }
+
+    sortByTreeMenu.setVisible(true);
 
-    treePanel.addInternalFrameListener(new javax.swing.event.
-                                       InternalFrameAdapter()
+    for(i=0; i<treePanels.size(); i++)
     {
-      public void internalFrameClosed(
-          javax.swing.event.InternalFrameEvent evt)
+      TreePanel tp = (TreePanel)treePanels.elementAt(i);
+      final JMenuItem item = new JMenuItem(tp.getTitle());
+      final NJTree tree = ((TreePanel)treePanels.elementAt(i)).getTree();
+      item.addActionListener(new java.awt.event.ActionListener()
       {
-        treeCount--;
-        sortByTreeMenu.remove(item);
-
-        if (treeCount == 0)
+        public void actionPerformed(ActionEvent e)
         {
-          sort.remove(sortByTreeMenu);
+          SequenceI[] oldOrder = viewport.getAlignment().getSequencesArray();
+          AlignmentSorter.sortByTree(viewport.getAlignment(), tree);
+
+          addHistoryItem(new OrderCommand("Tree Sort",
+                                          oldOrder,
+                                          viewport.alignment));
+
+          alignPanel.paintAlignment(true);
         }
-      }
-      ;
-    });
+      });
+
+      sortByTreeMenu.add(item);
+    }
   }
 
   /**
@@ -2304,7 +3007,7 @@ public class AlignFrame
     AlignmentView msa = null;
 
     if ( (viewport.getSelectionGroup() != null) &&
-        (viewport.getSelectionGroup().getSize(false) > 1))
+        (viewport.getSelectionGroup().getSize() > 1))
     {
       // JBPNote UGLY! To prettify, make SequenceGroup and Alignment conform to some common interface!
       /*SequenceGroup seqs = viewport.getSelectionGroup();
@@ -2346,7 +3049,7 @@ public class AlignFrame
    AlignmentView seqs = null;
 
     if ( (viewport.getSelectionGroup() != null) &&
-        (viewport.getSelectionGroup().getSize(false) > 0))
+        (viewport.getSelectionGroup().getSize() > 0))
     {
       seqs = viewport.getAlignmentView(true);
     }
@@ -2358,7 +3061,8 @@ public class AlignFrame
     // TODO: viewport.alignment.isAligned is a global state - the local selection may well be aligned - we preserve 2.0.8 behaviour for moment.
     if (!viewport.alignment.isAligned())
     {
-      seqs.setSequences(new SeqCigar[] { seqs.getSequences()[0] } );
+      seqs.setSequences(new SeqCigar[]
+                        {seqs.getSequences()[0]});
     }
     return seqs;
   }
@@ -2406,15 +3110,33 @@ public class AlignFrame
   {
     return ShowNewickTree(nf,title,600,500,4,5);
   }
+
+  public TreePanel ShowNewickTree(NewickFile nf, String title,
+                                  AlignmentView input)
+  {
+    return ShowNewickTree(nf,title, input, 600,500,4,5);
+  }
+
+  public TreePanel ShowNewickTree(NewickFile nf, String title, int w, int h,
+                                  int x, int y)
+  {
+    return ShowNewickTree(nf, title, null, w, h, x, y);
+  }
   /**
-   * DOCUMENT ME!
-   *
-   * @param nf DOCUMENT ME!
-   * @param title DOCUMENT ME!
+   * Add a treeviewer for the tree extracted from a newick file object to the current alignment view
    *
-   * @return DOCUMENT ME!
+   * @param nf the tree
+   * @param title tree viewer title
+   * @param input Associated alignment input data (or null)
+   * @param w width
+   * @param h height
+   * @param x position
+   * @param y position
+   * @return TreePanel handle
    */
-  public TreePanel ShowNewickTree(NewickFile nf, String title, int w,int h,int x, int y)
+  public TreePanel ShowNewickTree(NewickFile nf, String title,
+                                  AlignmentView input, int w, int h, int x,
+                                  int y)
   {
     TreePanel tp = null;
 
@@ -2424,19 +3146,20 @@ public class AlignFrame
 
       if (nf.getTree() != null)
       {
-        tp = new TreePanel(viewport,
+        tp = new TreePanel(alignPanel,
                            "FromFile",
                            title,
-                           nf);
+                           nf, input);
 
         tp.setSize(w,h);
 
         if(x>0 && y>0)
+        {
           tp.setLocation(x,y);
+        }
 
 
         Desktop.addInternalFrame(tp, title, w, h);
-        addTreeMenuItem(tp, title);
       }
     }
     catch (Exception ex)
@@ -2447,28 +3170,6 @@ public class AlignFrame
     return tp;
   }
 
-  class PrintThread
-      extends Thread
-  {
-    public void run()
-    {
-      PrinterJob printJob = PrinterJob.getPrinterJob();
-      PageFormat pf = printJob.pageDialog(printJob.defaultPage());
-      printJob.setPrintable(alignPanel, pf);
-
-      if (printJob.printDialog())
-      {
-        try
-        {
-          printJob.print();
-        }
-        catch (Exception PrintException)
-        {
-          PrintException.printStackTrace();
-        }
-      }
-    }
-  }
 
   /**
    * Generates menu items and listener event actions for web service clients
@@ -2498,7 +3199,9 @@ public class AlignFrame
             {
               AlignmentView msa = gatherSequencesForAlignment();
               new jalview.ws.MsaWSClient(sh, title, msa,
-                  false, true, viewport.getAlignment().getDataset(), af);
+                                         false, true,
+                                         viewport.getAlignment().getDataset(),
+                                         af);
 
             }
 
@@ -2515,7 +3218,9 @@ public class AlignFrame
               {
                 AlignmentView msa = gatherSequencesForAlignment();
                 new jalview.ws.MsaWSClient(sh, title, msa,
-                    true, true, viewport.getAlignment().getDataset(), af);
+                                           true, true,
+                                           viewport.getAlignment().getDataset(),
+                                           af);
 
               }
 
@@ -2543,7 +3248,7 @@ public class AlignFrame
               if (msa.getSequences().length == 1)
               {
                 // Single Sequence prediction
-                new jalview.ws.JPredClient(sh, title, false, msa, af);
+                new jalview.ws.JPredClient(sh, title, false, msa, af, true);
               }
               else
               {
@@ -2551,7 +3256,7 @@ public class AlignFrame
                 {
                   // Sequence profile based prediction
                   new jalview.ws.JPredClient(sh,
-                      title, true, msa, af);
+                      title, true, msa, af, true);
                 }
               }
             }
@@ -2600,117 +3305,34 @@ public class AlignFrame
 
 public void showTranslation_actionPerformed(ActionEvent e)
 {
+  ///////////////////////////////
+  // Collect Data to be translated/transferred
+
   SequenceI [] selection = viewport.getSelectionAsNewSequence();
   String [] seqstring = viewport.getViewAsString(true);
-
-  int s, sSize = selection.length;
-  SequenceI [] newSeq = new SequenceI[sSize];
-
-  int res, resSize;
-  StringBuffer protein;
-  String seq;
-  for(s=0; s<sSize; s++)
-  {
-    protein = new StringBuffer();
-    seq = AlignSeq.extractGaps("-. ", seqstring[s]);
-    resSize = seq.length();
-    resSize -= resSize%3;
-
-    for(res = 0; res < resSize; res+=3)
-    {
-      String codon = seq.substring(res, res+3);
-      codon = codon.replace('U', 'T');
-      String aa = ResidueProperties.codonTranslate(codon);
-      if(aa==null)
-        protein.append(viewport.getGapCharacter());
-      else if(aa.equals("STOP"))
-        protein.append("X");
-      else
-        protein.append( aa );
-    }
-    newSeq[s] = new Sequence(selection[s].getName(),
-                             protein.toString());
-  }
-
-
-  AlignmentI al = new Alignment(newSeq);
-  al.setDataset(null);
-
-
-  ////////////////////////////////
-  // Copy annotations across
-  jalview.datamodel.AlignmentAnnotation[] annotations
-      = viewport.alignment.getAlignmentAnnotation();
-  int a, aSize;
-  if(annotations!=null)
-  {
-    for (int i = 0; i < annotations.length; i++)
-    {
-      if (annotations[i].label.equals("Quality") ||
-          annotations[i].label.equals("Conservation") ||
-          annotations[i].label.equals("Consensus"))
-      {
-        continue;
-      }
-
-      aSize = viewport.alignment.getWidth() / 3;
-      jalview.datamodel.Annotation[] anots =
-          new jalview.datamodel.Annotation[aSize];
-
-      for (a = 0; a < viewport.alignment.getWidth(); a++)
-      {
-        if (annotations[i].annotations[a] == null
-            || annotations[i].annotations[a] == null)
-          continue;
-
-        anots[a / 3] = new Annotation(
-            annotations[i].annotations[a].displayCharacter,
-            annotations[i].annotations[a].description,
-            annotations[i].annotations[a].secondaryStructure,
-            annotations[i].annotations[a].value,
-            annotations[i].annotations[a].colour);
-      }
-
-      jalview.datamodel.AlignmentAnnotation aa
-          = new jalview.datamodel.AlignmentAnnotation(annotations[i].label,
-          annotations[i].description, anots);
-      al.addAnnotation(aa);
-    }
-  }
-
-    AlignFrame af = new AlignFrame(al);
+  AlignmentI al  = null;
+  try {
+    al = jalview.analysis.Dna.CdnaTranslate(selection, seqstring, viewport.getViewAsVisibleContigs(true),
+        viewport.getGapCharacter(), viewport.alignment.getAlignmentAnnotation(),
+        viewport.alignment.getWidth());
+  } catch (Exception ex) {
+    al = null;
+    jalview.bin.Cache.log.debug("Exception during translation.",ex);
+  }
+  if (al==null)
+  {
+    JOptionPane.showMessageDialog(Desktop.desktop,
+        "Please select at least three bases in at least one sequence in order to perform a cDNA translation.",
+        "Translation Failed",
+        JOptionPane.WARNING_MESSAGE);
+  } else {
+    AlignFrame af = new AlignFrame(al, DEFAULT_WIDTH, DEFAULT_HEIGHT);
     Desktop.addInternalFrame(af, "Translation of "+this.getTitle(),
-                             NEW_WINDOW_WIDTH,
-                             NEW_WINDOW_HEIGHT);
-
-
-   // AlignViewport newViewport = new AlignViewport(al);
-   // AlignmentPanel ap = new AlignmentPanel(this, newViewport);
-   // tabbedPane.add("Protein", ap);
-   // viewports.add(newViewport);
-  //  alignPanels.add(ap);
-
-    ///Dataset tab
-  /////////////////////////
-
-  //  AlignViewport ds = new AlignViewport(al.getDataset());
-  //  ds.setDataset(true);
-  //  AlignmentPanel dap = new AlignmentPanel(this, ds);
-  //  tabbedPane.add("Dataset", dap);
-  //  viewports.add(ds);
-  //  alignPanels.add(dap);
-  /////////////////////////
-
-
+                             DEFAULT_WIDTH,
+                             DEFAULT_HEIGHT);
+  }
 }
 
-/*public void tabSelected()
- {
-  int index = tabbedPane.getSelectedIndex();
-  viewport = (AlignViewport)viewports.elementAt(index);
-  alignPanel = (AlignmentPanel)alignPanels.elementAt(index);
- }*/
-
 /**
  * DOCUMENT ME!
  *
@@ -2719,8 +3341,10 @@ public void showTranslation_actionPerformed(ActionEvent e)
 public boolean parseFeaturesFile(String file, String type)
 {
     boolean featuresFile = false;
-    try{
-      featuresFile = new FeaturesFile(file, type).parse(viewport.alignment.getDataset(),
+    try
+    {
+      featuresFile = new FeaturesFile(file,
+          type).parse(viewport.alignment.getDataset(),
                                          alignPanel.seqPanel.seqCanvas.
                                          getFeatureRenderer().featureColours,
                                          false);
@@ -2734,7 +3358,7 @@ public boolean parseFeaturesFile(String file, String type)
     {
       viewport.showSequenceFeatures = true;
       showSeqFeatures.setSelected(true);
-      alignPanel.repaint();
+      alignPanel.paintAlignment(true);
     }
 
     return featuresFile;
@@ -2759,12 +3383,14 @@ public void drop(DropTargetDropEvent evt)
 
     try
     {
-      DataFlavor uriListFlavor = new DataFlavor("text/uri-list;class=java.lang.String");
+      DataFlavor uriListFlavor = new DataFlavor(
+          "text/uri-list;class=java.lang.String");
       if (t.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
       {
         //Works on Windows and MacOSX
         evt.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
-        files = (java.util.List) t.getTransferData(DataFlavor.javaFileListFlavor);
+        files = (java.util.List) t.getTransferData(DataFlavor.
+            javaFileListFlavor);
       }
       else if (t.isDataFlavorSupported(uriListFlavor))
       {
@@ -2817,29 +3443,120 @@ public void drop(DropTargetDropEvent evt)
   // AlignFrame
    public void loadJalviewDataFile(String file)
   {
-    try{
+    try
+    {
+      String protocol = "File";
+
+      if (file.indexOf("http:") > -1 || file.indexOf("file:") > -1)
+      {
+        protocol = "URL";
+      }
+
       boolean isAnnotation = new AnnotationFile().readAnnotationFile(viewport.
-          alignment, file);
+          alignment, file, protocol);
 
       if (!isAnnotation)
       {
-        boolean isGroupsFile = parseFeaturesFile(file,
-                                                AppletFormatAdapter.FILE);
+        boolean isGroupsFile = parseFeaturesFile(file,protocol);
         if (!isGroupsFile)
         {
-          String format = new IdentifyFile().Identify(file, FormatAdapter.FILE);
-          new FileLoader().LoadFile(viewport, file, FormatAdapter.FILE, format);
+          String format = new IdentifyFile().Identify(file, protocol);
+
+          if(format.equalsIgnoreCase("JnetFile"))
+          {
+            jalview.io.JPredFile predictions = new jalview.io.JPredFile(
+                file, protocol);
+            new JnetAnnotationMaker().add_annotation(predictions,
+                viewport.getAlignment(),
+                0, false);
+            alignPanel.adjustAnnotationHeight();
+            alignPanel.paintAlignment(true);
+          }
+          else
+          {
+            new FileLoader().LoadFile(viewport, file, protocol, format);
         }
       }
+      }
       else
       {
         // (isAnnotation)
         alignPanel.adjustAnnotationHeight();
       }
 
-    }catch(Exception ex)
+    }
+    catch (Exception ex)
     {
       ex.printStackTrace();
     }
   }
+
+  public void tabSelectionChanged(int index)
+  {
+    if (index > -1)
+    {
+      alignPanel = (AlignmentPanel) alignPanels.elementAt(index);
+      viewport = alignPanel.av;
+      setMenusFromViewport(viewport);
+    }
+  }
+
+  public void tabbedPane_mousePressed(MouseEvent e)
+  {
+    if(SwingUtilities.isRightMouseButton(e))
+    {
+      String reply = JOptionPane.showInternalInputDialog(this,
+          "Enter View Name",
+          "Edit View Name",
+          JOptionPane.QUESTION_MESSAGE);
+
+      if (reply != null)
+      {
+        viewport.viewName = reply;
+        tabbedPane.setTitleAt( tabbedPane.getSelectedIndex() ,reply);
+      }
+    }
+  }
+
+
+  public AlignViewport getCurrentView()
+  {
+    return viewport;
+  }
+}
+
+class PrintThread
+    extends Thread
+{
+  AlignmentPanel ap;
+  public PrintThread(AlignmentPanel ap)
+  {
+   this.ap = ap;
+  }
+  static PageFormat pf;
+  public void run()
+  {
+    PrinterJob printJob = PrinterJob.getPrinterJob();
+
+    if (pf != null)
+    {
+      printJob.setPrintable(ap, pf);
+    }
+    else
+    {
+      printJob.setPrintable(ap);
+    }
+
+    if (printJob.printDialog())
+    {
+      try
+      {
+        printJob.print();
+      }
+      catch (Exception PrintException)
+      {
+        PrintException.printStackTrace();
+      }
+    }
+  }
 }