JAL-1645 Version-Rel Version 2.9 Year-Rel 2015 Licensing glob
[jalview.git] / src / jalview / gui / AppVarnaBinding.java
index 389efd1..366dc06 100644 (file)
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.6)
- * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.9)
+ * Copyright (C) 2015 The Jalview Authors
  * 
  * This file is part of Jalview.
  * 
  * Jalview is free software: you can redistribute it and/or
  * modify it under the terms of the GNU General Public License 
- * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- * 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
  * Jalview is distributed in the hope that it will be useful, but 
  * WITHOUT ANY WARRANTY; without even the implied warranty 
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
  * PURPOSE.  See the GNU General Public License for more details.
  * 
- * You should have received a copy of the GNU General Public License along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 package jalview.gui;
 
+import jalview.datamodel.SequenceI;
+import jalview.ext.varna.JalviewVarnaBinding;
+import jalview.structure.AtomSpec;
+import jalview.util.MessageManager;
+
 import java.awt.BorderLayout;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Dimension;
-import java.awt.Font;
-import java.awt.GridLayout;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.Transferable;
 import java.awt.dnd.DnDConstants;
 import java.awt.dnd.DropTarget;
-import java.awt.dnd.DropTargetDragEvent;
+import java.awt.dnd.DropTargetAdapter;
 import java.awt.dnd.DropTargetDropEvent;
-import java.awt.dnd.DropTargetEvent;
-import java.awt.dnd.DropTargetListener;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
+import java.awt.event.ComponentEvent;
+import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
 import java.io.File;
-import java.text.DateFormat;
+import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Date;
+import java.util.Collection;
 import java.util.List;
 
 import javax.swing.DefaultListModel;
 import javax.swing.DefaultListSelectionModel;
-import javax.swing.Icon;
-import javax.swing.JButton;
-import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JList;
-import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
-import javax.swing.JSplitPane;
-import javax.swing.JTextField;
 import javax.swing.ListModel;
 import javax.swing.ListSelectionModel;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
 import fr.orsay.lri.varna.VARNAPanel;
 import fr.orsay.lri.varna.components.ReorderableJList;
-import fr.orsay.lri.varna.exceptions.ExceptionFileFormatOrSyntax;
 import fr.orsay.lri.varna.exceptions.ExceptionLoadingFailed;
+import fr.orsay.lri.varna.exceptions.ExceptionNAViewAlgorithm;
 import fr.orsay.lri.varna.exceptions.ExceptionNonEqualLength;
-import fr.orsay.lri.varna.exceptions.ExceptionUnmatchedClosingParentheses;
-import fr.orsay.lri.varna.interfaces.InterfaceVARNAListener;
 import fr.orsay.lri.varna.models.FullBackup;
 import fr.orsay.lri.varna.models.VARNAConfig;
-import fr.orsay.lri.varna.models.rna.Mapping;
 import fr.orsay.lri.varna.models.rna.RNA;
 
-public class AppVarnaBinding extends JFrame implements DropTargetListener, InterfaceVARNAListener, MouseListener {
-
-       /**
-        * 
-        */
-       //private static final long serialVersionUID = -790155708306987257L;
-
-       private String DEFAULT_SEQUENCE = "CAGCACGACACUAGCAGUCAGUGUCAGACUGCAIACAGCACGACACUAGCAGUCAGUGUCAGACUGCAIACAGCACGACACUAGCAGUCAGUGUCAGACUGCAIA";
-
-       private String DEFAULT_STRUCTURE1 = "..(((((...(((((...(((((...(((((.....)))))...))))).....(((((...(((((.....)))))...))))).....)))))...)))))..";
-       private String DEFAULT_STRUCTURE2 = "..(((((...(((((...(((((........(((((...(((((.....)))))...)))))..................))))).....)))))...)))))..";
-       // private static final String DEFAULT_STRUCTURE1 = "((((....))))";
-       // private static final String DEFAULT_STRUCTURE2 =
-       // "((((..(((....)))..))))";
-
-       public VARNAPanel vp;
-
-       private JPanel _tools = new JPanel();
-       private JPanel _input = new JPanel();
-
-       private JPanel _seqPanel = new JPanel();
-       private JPanel _strPanel = new JPanel();
-       private JLabel _info = new JLabel();
-       private JTextField _str = new JTextField();
-       private JTextField _seq = new JTextField();
-       private JLabel _strLabel = new JLabel(" Str:");
-       private JLabel _seqLabel = new JLabel(" Seq:");
-       private JButton _createButton = new JButton("Create");
-       private JButton _deleteButton = new JButton("Delete");
-       private JButton _duplicateButton = new JButton("Snapshot");
-       
-       private JPanel _listPanel = new JPanel();
-       private ReorderableJList _sideList = null;
-
-
-       private static String errorOpt = "error";
-       @SuppressWarnings("unused")
-       private boolean _error;
-
-       private Color _backgroundColor = Color.white;
-
-       private static int _nextID = 1;
-       @SuppressWarnings("unused")
-       private int _algoCode;
-       
-       private BackupHolder _rnaList;
-
-
-       public AppVarnaBinding() {
-               super("VARNA in Jalview");
-               //this.set_seq("ATGC");
-               //this.set_str(".().");
-               //RNAPanelDemoInit();
-               
-               //initVarna("ATGCATGATATATATATAT","....((((...))))....");
-               initVarna(this.DEFAULT_SEQUENCE,this.DEFAULT_STRUCTURE1);
-       }
-       
-       public AppVarnaBinding(String seq){
-               super("VARNA in Jalview");
-               initVarna(seq,this.DEFAULT_STRUCTURE1);
-       }
-       
-       
-       
-       private void initVarna(String seq, String str){
-               DefaultListModel dlm = new DefaultListModel(); 
-           
-
-               DefaultListSelectionModel m = new DefaultListSelectionModel();
-           m.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
-           m.setLeadAnchorNotificationEnabled(false);
-           
-           
-               _sideList = new ReorderableJList();
-               _sideList.setModel(dlm);
-               _sideList.addMouseListener(this);
-           _sideList.setSelectionModel(m);
-           _sideList.setPreferredSize(new Dimension(100, 0));
-           _sideList.addListSelectionListener( new ListSelectionListener(){
-                       public void valueChanged(ListSelectionEvent arg0) {
-                               if (!_sideList.isSelectionEmpty() && !arg0.getValueIsAdjusting())
-                               {
-                                       FullBackup  sel = (FullBackup) _sideList.getSelectedValue();
-                                       Mapping map = Mapping.DefaultOutermostMapping(vp.getRNA().getSize(), sel.rna.getSize());
-                                       vp.showRNAInterpolated(sel.rna,sel.config,map);
-                                       _seq.setText(sel.rna.getSeq());
-                                       _str.setText(sel.rna.getStructDBN());
-                               }
-                       }
-           });
-
-           _rnaList = new BackupHolder(dlm,_sideList);
-               RNA _RNA1 = new RNA("User defined 1");
-               
-               try {
-                       vp = new VARNAPanel("0",".");
-                       _RNA1.setRNA(seq, str);
-                       _RNA1.drawRNARadiate(vp.getConfig());
-               } catch (ExceptionNonEqualLength e) {
-                       vp.errorDialog(e);
-               } catch (ExceptionUnmatchedClosingParentheses e2) {
-               e2.printStackTrace();
-               } catch (ExceptionFileFormatOrSyntax e3) {
-               e3.printStackTrace();
-               }
-               vp.setPreferredSize(new Dimension(400, 400));
-               _rnaList.add(vp.getConfig().clone(),_RNA1,generateDefaultName(),true);
-
-               setBackground(_backgroundColor);
-               vp.setBackground(_backgroundColor);
-
-               getContentPane().setLayout(new BorderLayout());
-               getContentPane().add(vp, BorderLayout.CENTER);
-
-               setVisible(true);
-               vp.addVARNAListener(this);
-       }
-
-       private void RNAPanelDemoInit() 
-       {
-           DefaultListModel dlm = new DefaultListModel(); 
-           
-
-               int marginTools = 40;
-
-           DefaultListSelectionModel m = new DefaultListSelectionModel();
-           m.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
-           m.setLeadAnchorNotificationEnabled(false);
-           
-           
-               _sideList = new ReorderableJList();
-               _sideList.setModel(dlm);
-               _sideList.addMouseListener(this);
-           _sideList.setSelectionModel(m);
-           _sideList.setPreferredSize(new Dimension(100, 0));
-           _sideList.addListSelectionListener( new ListSelectionListener(){
-                       public void valueChanged(ListSelectionEvent arg0) {
-                               //System.out.println(arg0);
-                               if (!_sideList.isSelectionEmpty() && !arg0.getValueIsAdjusting())
-                               {
-                                       FullBackup  sel = (FullBackup) _sideList.getSelectedValue();
-                                       Mapping map = Mapping.DefaultOutermostMapping(vp.getRNA().getSize(), sel.rna.getSize());
-                                       vp.showRNAInterpolated(sel.rna,sel.config,map);
-                                       _seq.setText(sel.rna.getSeq());
-                                       _str.setText(sel.rna.getStructDBN());
-                               }
-                       }
-           });
-
-           _rnaList = new BackupHolder(dlm,_sideList);
-               RNA _RNA1 = new RNA("User defined 1");
-               RNA _RNA2 = new RNA("User defined 2");
-               try {
-                       vp = new VARNAPanel("0",".");
-                       _RNA1.setRNA(DEFAULT_SEQUENCE, DEFAULT_STRUCTURE1);
-                       _RNA1.drawRNARadiate(vp.getConfig());
-                       _RNA2.setRNA(DEFAULT_SEQUENCE, DEFAULT_STRUCTURE2);
-                       _RNA2.drawRNARadiate(vp.getConfig());
-               } catch (ExceptionNonEqualLength e) {
-                       vp.errorDialog(e);
-               } catch (ExceptionUnmatchedClosingParentheses e2) {
-               e2.printStackTrace();
-               } catch (ExceptionFileFormatOrSyntax e3) {
-               e3.printStackTrace();
-               }
-               vp.setPreferredSize(new Dimension(400, 400));
-           _rnaList.add(vp.getConfig().clone(),_RNA2,generateDefaultName());
-           _rnaList.add(vp.getConfig().clone(),_RNA1,generateDefaultName(),true);
-
-           JScrollPane listScroller = new JScrollPane(_sideList);
-           listScroller.setPreferredSize(new Dimension(150, 0));
-
-               setBackground(_backgroundColor);
-               vp.setBackground(_backgroundColor);
-
-
-               Font textFieldsFont = Font.decode("MonoSpaced-PLAIN-12");
-
-               _seqLabel.setHorizontalTextPosition(JLabel.LEFT);
-               _seqLabel.setPreferredSize(new Dimension(marginTools, 15));
-               _seq.setFont(textFieldsFont);
-               _seq.setText(DEFAULT_SEQUENCE);
-
-               _createButton.addActionListener(new ActionListener() {
-                       public void actionPerformed(ActionEvent e) {
-                               try {
-                               RNA nRNA = new RNA(generateDefaultName());
-                               nRNA.setRNA(_seq.getText(), _str.getText());
-                               nRNA.drawRNARadiate(vp.getConfig());
-                               _rnaList.add(new VARNAConfig(),nRNA,true);
-                               } catch (ExceptionUnmatchedClosingParentheses e1) {
-                                       JOptionPane.showMessageDialog(vp, e1.getMessage(),"Error", JOptionPane.ERROR_MESSAGE);
-                               } catch (ExceptionFileFormatOrSyntax e1) {
-                                       JOptionPane.showMessageDialog(vp, e1.getMessage(),"Error", JOptionPane.ERROR_MESSAGE);
-                               }
-                       }
-               });
-
-
-               _seqPanel.setLayout(new BorderLayout());
-               _seqPanel.add(_seqLabel, BorderLayout.WEST);
-               _seqPanel.add(_seq, BorderLayout.CENTER);
-
-               _strLabel.setPreferredSize(new Dimension(marginTools, 15));
-               _strLabel.setHorizontalTextPosition(JLabel.LEFT);
-               _str.setFont(textFieldsFont);
-               _strPanel.setLayout(new BorderLayout());
-               _strPanel.add(_strLabel, BorderLayout.WEST);
-               _strPanel.add(_str, BorderLayout.CENTER);
-
-               _input.setLayout(new GridLayout(2, 0));
-               _input.add(_seqPanel);
-               _input.add(_strPanel);
-
-               JPanel goPanel = new JPanel();
-               goPanel.setLayout(new BorderLayout());
-
-               _tools.setLayout(new BorderLayout());
-               _tools.add(_input, BorderLayout.CENTER);
-               _tools.add(_info, BorderLayout.SOUTH);
-               _tools.add(goPanel, BorderLayout.EAST);
-
-               _deleteButton.addActionListener(new ActionListener() {
-                       public void actionPerformed(ActionEvent e) {
-                               _rnaList.removeSelected();
-                       }
-               });
-               _duplicateButton.addActionListener(new ActionListener() {
-                       public void actionPerformed(ActionEvent e) {
-                                       _rnaList.add((VARNAConfig)vp.getConfig().clone(),vp.getRNA().clone(),vp.getRNA().getName()+"-"+DateFormat.getTimeInstance(DateFormat.LONG).format(new Date()),true); 
-                       }});
-               
-               JPanel ops = new JPanel();
-               ops.setLayout(new GridLayout(1,2));
-               ops.add(_deleteButton);
-               ops.add(_duplicateButton);
-
-               JLabel j = new JLabel("Structures Manager",JLabel.CENTER);
-               _listPanel.setLayout(new BorderLayout());
-               
-               _listPanel.add(ops,BorderLayout.SOUTH);
-               _listPanel.add(j,BorderLayout.NORTH);
-               _listPanel.add(listScroller,BorderLayout.CENTER);
-
-               goPanel.add(_createButton, BorderLayout.CENTER);
-
-               JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,true,_listPanel,vp);
-               getContentPane().setLayout(new BorderLayout());
-               getContentPane().add(split, BorderLayout.CENTER);
-               getContentPane().add(_tools, BorderLayout.NORTH);
-
-               setVisible(true);
-               DropTarget dt = new DropTarget(vp, this);
-               
-               vp.addVARNAListener(this);
-       }
-       
-       public static String generateDefaultName()
-       {
-               return "User file #"+_nextID++;
-       }
-
-       public RNA getRNA() {
-               return (RNA)_sideList.getSelectedValue();
-       }
-
-
-
-       public String[][] getParameterInfo() {
-               String[][] info = {
-                               // Parameter Name Kind of Value Description,
-                               { "sequenceDBN", "String", "A raw RNA sequence" },
-                               { "structureDBN", "String",
-                                               "An RNA structure in dot bracket notation (DBN)" },
-                               { errorOpt, "boolean", "To show errors" }, };
-               return info;
-       }
-
-       public void init() {
-               vp.setBackground(_backgroundColor);
-               _error = true;
-       }
-
-       @SuppressWarnings("unused")
-       private Color getSafeColor(String col, Color def) {
-               Color result;
-               try {
-                       result = Color.decode(col);
-               } catch (Exception e) {
-                       try {
-                               result = Color.getColor(col, def);
-                       } catch (Exception e2) {
-                               return def;
-                       }
-               }
-               return result;
-       }
-
-       public VARNAPanel get_varnaPanel() {
-               return vp;
-       }
-
-       public void set_varnaPanel(VARNAPanel surface) {
-               vp = surface;
-       }
-
-
-       public String get_seq() {
-               return _seq.getText();
-       }
-
-       public void set_seq(String _seq) {
-               this._seq.setText(_seq);
-       }
-       
-       public String get_str(){
-               return _str.getText();
-       }
-       
-       public void set_str(String _str){
-               this._str.setText(_str);
-       }
-
-       public JLabel get_info() {
-               return _info;
-       }
-
-       public void set_info(JLabel _info) {
-               this._info = _info;
-       }
-
-       public static void main(String[] args) {
-               AppVarnaBinding d = new AppVarnaBinding();
-               d.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-               d.pack();
-               d.setVisible(true);
-       }
-       
-
-       public void dragEnter(DropTargetDragEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void dragExit(DropTargetEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void dragOver(DropTargetDragEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void drop(DropTargetDropEvent dtde) {
-           try {
-               Transferable tr = dtde.getTransferable();
-               DataFlavor[] flavors = tr.getTransferDataFlavors();
-               for (int i = 0; i < flavors.length; i++) {
-           if (flavors[i].isFlavorJavaFileListType()) {
-             dtde.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
-             Object ob = tr.getTransferData(flavors[i]);
-             if (ob instanceof List)
-             {
-                 List list = (List) ob;
-                 for (int j = 0; j < list.size(); j++) {
-                 Object o = list.get(j);
-                 
-                 if (dtde.getSource() instanceof DropTarget)
-                 {
-                         DropTarget dt = (DropTarget) dtde.getSource();
-                         Component c = dt.getComponent();
-                         if (c instanceof VARNAPanel)
-                         {
-                                         String path = o.toString();
-                                 VARNAPanel vp = (VARNAPanel) c;
-                                         try{
-                                 FullBackup bck =  VARNAPanel.importSession(path);
-                                 _rnaList.add(bck.config, bck.rna,bck.name,true);
-                                         }
-                                         catch (ExceptionLoadingFailed e3)
-                                         {
-                                                 RNA r = new RNA();
-                                                 r.loadSecStr(path);
-                                                 r.drawRNA(vp.getConfig());
-                                                 String name =r.getName();
-                                                 if (name.equals(""))
-                                                 { 
-                                                         name = path.substring(path.lastIndexOf(File.separatorChar)+1);
-                                                 }
-                                                 _rnaList.add(vp.getConfig().clone(),r,name,true);
-                                         }                                       
-                         }
-                 }
-                 }
-             }
-             // If we made it this far, everything worked.
-             dtde.dropComplete(true);
-             return;
-           }
-               }
-               // Hmm, the user must not have dropped a file list
-               dtde.rejectDrop();
-             } catch (Exception e) {
-               e.printStackTrace();
-               dtde.rejectDrop();
-             }
-               
-       }
-
-       public void dropActionChanged(DropTargetDragEvent arg0) {
-       }
-
-       private class BackupHolder{
-               private DefaultListModel _rnaList;
-               private ArrayList<RNA> _rnas = new ArrayList<RNA>();
-               JList _l;
-               
-               public BackupHolder(DefaultListModel rnaList, JList l)
-               {
-                       _rnaList = rnaList;
-                       _l = l;
-               }
-               
-               public void add(VARNAConfig c, RNA r)
-               {
-                       add(c, r, r.getName(),false);
-               }
-
-               public void add(VARNAConfig c, RNA r,boolean select)
-               {
-                       add(c, r, r.getName(),select);
-               }
-
-               public void add(VARNAConfig c, RNA r, String name)
-               {
-                       add(c, r, name,false);                  
-               }
-               public void add(VARNAConfig c, RNA r, String name, boolean select)
-               {
-                       if (select){
-                               _l.removeSelectionInterval(0, _rnaList.size());
-                       }
-                       if (name.equals(""))
-                       {
-                               name = generateDefaultName();
-                       }
-                       FullBackup bck = new FullBackup(c,r,name);
-                       _rnas.add(0, r);
-                       _rnaList.add(0,bck);
-                       if (select){
-                         _l.setSelectedIndex(0);
-                       }
-               }
-
-               public void remove(int i)
-               {
-                       _rnas.remove(i);
-                       _rnaList.remove(i);
-                       
-               }
-               public DefaultListModel getModel()
-               {
-                       return _rnaList;
-               }
-               public boolean contains(RNA r)
-               {
-                       return _rnas.contains(r);
-               }
-               /*public int getSize()
-               {
-                       return _rnaList.getSize();
-               }*/
-               public FullBackup getElementAt(int i)
-               {
-                       return (FullBackup) _rnaList.getElementAt(i);
-               }
-               
-               public void removeSelected()
-               {
-                       int i = _l.getSelectedIndex();
-                       if (i!=-1)
-                       {
-                         if (_rnaList.getSize()==1)
-                         {
-                                 RNA r = new RNA();
-                                 try {
-                                       r.setRNA(" ", ".");
-                                 } catch (ExceptionUnmatchedClosingParentheses e1) {
-                                 } catch (ExceptionFileFormatOrSyntax e1) {
-                                 }
-                                 vp.showRNA(r);
-                                 vp.repaint();
-                         }
-                         else
-                         {  
-                                int newi = i+1;
-                                if (newi==_rnaList.getSize())
-                                {
-                                        newi = _rnaList.getSize()-2;
-                                }
-                                FullBackup bck = (FullBackup) _rnaList.getElementAt(newi);
-                                _l.setSelectedValue(bck,true);
-                         }
-                         _rnaList.remove(i);
-                       }
-
-               }
-       }
-
-       public void onLayoutChanged() {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void onUINewStructure(VARNAConfig v, RNA r) {
-               _rnaList.add(v, r,"",true);
-       }
-
-       public void onWarningEmitted(String s) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void mouseClicked(MouseEvent e) {
-                          if(e.getClickCount() == 2){
-                            int index = _sideList.locationToIndex(e.getPoint());
-                            ListModel dlm = _sideList.getModel();
-                            FullBackup item = (FullBackup) dlm.getElementAt(index);;
-                            _sideList.ensureIndexIsVisible(index);
-                            Object newName = JOptionPane.showInputDialog(
-                                           this,
-                                           "Specify a new name for this RNA",
-                                           "Rename RNA", 
-                                           JOptionPane.QUESTION_MESSAGE,
-                                           (Icon)null,
-                                           null,
-                                           item.toString());
-                            if (newName!=null)
-                            {
-                                item.name = newName.toString();
-                                this._sideList.repaint();
-                            }
-                            }
-       }
-
-       public void mouseEntered(MouseEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void mouseExited(MouseEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void mousePressed(MouseEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-
-       public void mouseReleased(MouseEvent arg0) {
-               // TODO Auto-generated method stub
-               
-       }
-}
-
-
-/*
-       public static void main(String[] args)
-       {
-               JTextField str = new JTextField("ATGC");
-               
-               AppVarnaBinding vab = new AppVarnaBinding();
-               vab.varnagui.set_seq(str);
-               vab.varnagui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-               vab.varnagui.pack();
-               vab.varnagui.setVisible(true);  
-       }
+public class AppVarnaBinding extends JalviewVarnaBinding
+{
+  public VARNAPanel vp;
+
+  protected JPanel _listPanel = new JPanel();
+
+  private ReorderableJList _sideList = null;
+
+  private static String errorOpt = "error";
+
+  @SuppressWarnings("unused")
+  private boolean _error;
+
+  private Color _backgroundColor = Color.white;
+
+  private static int _nextID = 1;
+
+  @SuppressWarnings("unused")
+  private int _algoCode;
+
+  private BackupHolder _rnaList;
+
+  /**
+   * Constructor
+   */
+  public AppVarnaBinding()
+  {
+    init();
+  }
+
+  /**
+   * Constructs the VARNAPanel and an (empty) selection list of structures to
+   * show in it
+   */
+  private void init()
+  {
+    DefaultListModel<FullBackup> dlm = new DefaultListModel<FullBackup>();
+
+    int marginTools = 40;
+
+    DefaultListSelectionModel m = new DefaultListSelectionModel();
+    m.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+    m.setLeadAnchorNotificationEnabled(false);
+
+    _sideList = new ReorderableJList();
+    _sideList.setModel(dlm);
+    _sideList.addMouseListener(new MouseAdapter()
+    {
+      @Override
+      public void mouseClicked(MouseEvent e)
+      {
+        AppVarnaBinding.this.mouseClicked(e);
+      }
+    });
+    _sideList.setSelectionModel(m);
+    _sideList.setPreferredSize(new Dimension(100, 0));
+    _sideList.addListSelectionListener(new ListSelectionListener()
+    {
+      public void valueChanged(ListSelectionEvent evt)
+      {
+        changeSelectedStructure_actionPerformed(evt);
+      }
+    });
+    _rnaList = new BackupHolder(dlm, _sideList);
+
+    try
+    {
+      vp = new VARNAPanel("0", ".");
+    } catch (ExceptionNonEqualLength e)
+    {
+      vp.errorDialog(e);
+    }
+    vp.setPreferredSize(new Dimension(400, 400));
+
+    JScrollPane listScroller = new JScrollPane(_sideList);
+    listScroller.setPreferredSize(new Dimension(150, 0));
+
+    vp.setBackground(_backgroundColor);
+
+    JLabel j = new JLabel(
+            MessageManager.getString("label.structures_manager"),
+            JLabel.CENTER);
+    _listPanel.setLayout(new BorderLayout());
+
+    _listPanel.add(j, BorderLayout.NORTH);
+    _listPanel.add(listScroller, BorderLayout.CENTER);
+
+    new DropTarget(vp, new DropTargetAdapter()
+    {
+      @Override
+      public void drop(DropTargetDropEvent dtde)
+      {
+        AppVarnaBinding.this.drop(dtde);
+      }
+    });
+  }
+
+  public JPanel getListPanel()
+  {
+    return _listPanel;
+  }
+
+  /**
+   * Returns the currently selected RNA, or null if none selected
+   * 
+   * @return
+   */
+  public RNA getSelectedRNA()
+  {
+    int selectedIndex = _sideList.getSelectedIndex();
+    if (selectedIndex < 0)
+    {
+      return null;
+    }
+    FullBackup selected = _rnaList.getElementAt(selectedIndex);
+    return selected.rna;
+  }
+
+  /**
+   * Substitute currently selected RNA with the edited one
+   * 
+   * @param rnaEdit
+   */
+  public void updateSelectedRNA(RNA rnaEdit)
+  {
+    vp.repaint();
+    vp.showRNA(rnaEdit);
+  }
+
+  public static String generateDefaultName()
+  {
+    return "User file #" + _nextID++;
+  }
+
+  public String[][] getParameterInfo()
+  {
+    String[][] info = {
+        // Parameter Name Kind of Value Description,
+        { "sequenceDBN", "String", "A raw RNA sequence" },
+        { "structureDBN", "String",
+            "An RNA structure in dot bracket notation (DBN)" },
+        { errorOpt, "boolean", "To show errors" }, };
+    return info;
+  }
+
+  @SuppressWarnings("unused")
+  private Color getSafeColor(String col, Color def)
+  {
+    Color result;
+    try
+    {
+      result = Color.decode(col);
+    } catch (Exception e)
+    {
+      try
+      {
+        result = Color.getColor(col, def);
+      } catch (Exception e2)
+      {
+        return def;
+      }
+    }
+    return result;
+  }
+
+  public VARNAPanel get_varnaPanel()
+  {
+    return vp;
+  }
+
+  public void set_varnaPanel(VARNAPanel surface)
+  {
+    vp = surface;
+  }
+
+  public void drop(DropTargetDropEvent dtde)
+  {
+    try
+    {
+      Transferable tr = dtde.getTransferable();
+      DataFlavor[] flavors = tr.getTransferDataFlavors();
+      for (int i = 0; i < flavors.length; i++)
+      {
+        if (flavors[i].isFlavorJavaFileListType())
+        {
+          dtde.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
+          Object ob = tr.getTransferData(flavors[i]);
+          if (ob instanceof List)
+          {
+            List list = (List) ob;
+            for (int j = 0; j < list.size(); j++)
+            {
+              Object o = list.get(j);
+
+              if (dtde.getSource() instanceof DropTarget)
+              {
+                DropTarget dt = (DropTarget) dtde.getSource();
+                Component c = dt.getComponent();
+                if (c instanceof VARNAPanel)
+                {
+                  String path = o.toString();
+                  VARNAPanel varnaPanel = (VARNAPanel) c;
+                  try
+                  {
+                    FullBackup bck = VARNAPanel.importSession(path);
+                    _rnaList.add(bck.config, bck.rna, bck.name, true);
+                  } catch (ExceptionLoadingFailed e3)
+                  {
+                    int mn = 1;
+                    Collection<RNA> mdls = fr.orsay.lri.varna.factories.RNAFactory
+                            .loadSecStr(path);
+                    for (RNA r : mdls)
+                    {
+                      r.drawRNA(varnaPanel.getConfig());
+                      String name = r.getName();
+                      if (name.equals(""))
+                      {
+                        name = path.substring(path
+                                .lastIndexOf(File.separatorChar) + 1);
+                      }
+                      if (mdls.size() > 1)
+                      {
+                        name += " (Model " + mn++ + ")";
+                      }
+                      _rnaList.add(varnaPanel.getConfig().clone(), r, name,
+                              true);
+                    }
+                  }
+                }
+              }
+            }
+          }
+          // If we made it this far, everything worked.
+          dtde.dropComplete(true);
+          return;
+        }
+      }
+      // Hmm, the user must not have dropped a file list
+      dtde.rejectDrop();
+    } catch (Exception e)
+    {
+      e.printStackTrace();
+      dtde.rejectDrop();
+    }
+
+  }
+
+  private class BackupHolder
+  {
+    private DefaultListModel<FullBackup> _rnalist;
+
+    private List<RNA> _rnas = new ArrayList<RNA>();
+
+    JList _l;
+
+    public BackupHolder(DefaultListModel<FullBackup> rnaList, JList l)
+    {
+      _rnalist = rnaList;
+      _l = l;
+    }
+
+    public void add(VARNAConfig c, RNA r, String name)
+    {
+      add(c, r, name, false);
+    }
+
+    /**
+     * Adds an entry to the end of the selection list and (optionally) sets it
+     * as selected
+     * 
+     * @param c
+     * @param r
+     * @param name
+     * @param select
+     */
+    public void add(VARNAConfig c, RNA r, String name, boolean select)
+    {
+      if (select)
+      {
+        _l.removeSelectionInterval(0, _rnalist.size());
+      }
+      if (name.equals(""))
+      {
+        name = generateDefaultName();
+      }
+      FullBackup bck = new FullBackup(c, r, name);
+      _rnas.add(r);
+      _rnalist.addElement(bck);
+      if (select)
+      {
+        _l.setSelectedIndex(0);
+      }
+    }
+
+    public FullBackup getElementAt(int i)
+    {
+      return _rnalist.getElementAt(i);
+    }
+  }
+
+  public void mouseClicked(MouseEvent e)
+  {
+    if (e.getClickCount() == 2)
+    {
+      int index = _sideList.locationToIndex(e.getPoint());
+      ListModel<FullBackup> dlm = _sideList.getModel();
+      // FullBackup item = dlm.getElementAt(index);
+
+      _sideList.ensureIndexIsVisible(index);
+      /*
+       * TODO Object newName = JOptionPane.showInputDialog( this,
+       * "Specify a new name for this RNA", "Rename RNA",
+       * JOptionPane.QUESTION_MESSAGE, (Icon)null, null, item.toString()); if
+       * (newName!=null) { item.name = newName.toString();
+       * this._sideList.repaint(); }
+       */
+    }
+  }
+
+  @Override
+  public String[] getPdbFile()
+  {
+    return null;
+  }
+
+  @Override
+  public void releaseReferences(Object svl)
+  {
+  }
+
+  @Override
+  public void updateColours(Object source)
+  {
+  }
+
+  @Override
+  public void componentHidden(ComponentEvent e)
+  {
+  }
+
+  @Override
+  public void componentMoved(ComponentEvent e)
+  {
+  }
+
+  @Override
+  public void componentResized(ComponentEvent e)
+  {
+  }
+
+  @Override
+  public void componentShown(ComponentEvent e)
+  {
+  }
+
+  @Override
+  public void highlightAtoms(List<AtomSpec> atoms)
+  {
+  }
+
+  @Override
+  public boolean isListeningFor(SequenceI seq)
+  {
+    return true;
+  }
+
+  /**
+   * Returns the path to a temporary file containing a representation of the
+   * state of the Varna display, or null on any error
+   * 
+   * @param rna
+   * @param jds
+   * 
+   * @return
+   */
+  public String getStateInfo(RNA rna)
+  {
+    if (vp == null)
+    {
+      return null;
+    }
+
+    /*
+     * we have to show the RNA we want to save in the viewer; get the currently
+     * displayed model first so we can restore it
+     */
+    FullBackup sel = (FullBackup) _sideList.getSelectedValue();
+
+    FullBackup model = null;
+    ListModel models = _sideList.getModel();
+    for (int i = 0; i < models.getSize(); i++)
+    {
+      model = (FullBackup) models.getElementAt(i);
+      if (model.rna == rna)
+      {
+        break;
+      }
+    }
+    if (model == null)
+    {
+      return null;
+    }
+
+    /*
+     * switch display
+     */
+    vp.showRNA(model.rna, model.config);
+
+    try
+    {
+      File temp;
+      temp = File.createTempFile("varna", null);
+      temp.deleteOnExit();
+      String filePath = temp.getAbsolutePath();
+      vp.toXML(filePath);
+
+      /*
+       * restore the previous display
+       */
+      vp.showRNA(sel.rna, sel.config);
+
+      return filePath;
+    } catch (IOException e)
+    {
+      return null;
+    }
+  }
+
+  public int getSelectedIndex()
+  {
+    return _sideList.getSelectedIndex();
+  }
+
+  /**
+   * Switch the Varna display to the structure selected in the left hand panel
+   * 
+   * @param evt
+   */
+  protected void changeSelectedStructure_actionPerformed(
+          ListSelectionEvent evt)
+  {
+    if (!evt.getValueIsAdjusting())
+    {
+      showSelectedStructure();
+    }
+  }
+
+  /**
+   * 
+   */
+  protected void showSelectedStructure()
+  {
+    FullBackup sel = (FullBackup) _sideList.getSelectedValue();
+    if (sel != null)
+    {
+      vp.showRNA(sel.rna, sel.config);
+    }
+  }
+
+  /**
+   * Set and display the selected item in the list of structures
+   * 
+   * @param selectedRna
+   */
+  public void setSelectedIndex(final int selectedRna)
+  {
+    /*
+     * note this does nothing if, say, selecting item 3 when only 1 has been
+     * added on load
+     */
+    _sideList.setSelectedIndex(selectedRna);
+    // TODO ? need a worker thread to get this to happen properly
+  }
+
+  /**
+   * Add an RNA structure to the selection list
+   * 
+   * @param rna
+   */
+  public void addStructure(RNA rna)
+  {
+    VARNAConfig config = vp.getConfig().clone();
+    addStructure(rna, config);
+  }
+
+  /**
+   * @param rna
+   * @param config
+   */
+  protected void addStructure(final RNA rna, final VARNAConfig config)
+  {
+    drawRna(rna, config);
+    _rnaList.add(config, rna, rna.getName());
+  }
+
+  /**
+   * @param rna
+   * @param config
+   */
+  protected void drawRna(final RNA rna, final VARNAConfig config)
+  {
+    try
+    {
+      rna.drawRNA(rna.getDrawMode(), config);
+    } catch (ExceptionNAViewAlgorithm e)
+    {
+      // only throwable for draw mode = 3 NAView
+      System.err.println("Error drawing RNA: " + e.getMessage());
+    }
+  }
 }
-*/
\ No newline at end of file