JAL-629 PAE matrix file guesstimate from filename
[jalview.git] / src / jalview / gui / StructureChooser.java
index ae7971c..47bec31 100644 (file)
 
 package jalview.gui;
 
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.awt.event.ItemEvent;
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Locale;
+import java.util.concurrent.Callable;
 import java.util.concurrent.Executors;
 
 import javax.swing.JCheckBox;
 import javax.swing.JComboBox;
 import javax.swing.JLabel;
+import javax.swing.JMenuItem;
+import javax.swing.JPopupMenu;
 import javax.swing.JTable;
 import javax.swing.SwingUtilities;
 import javax.swing.table.AbstractTableModel;
 
 import jalview.api.structures.JalviewStructureDisplayI;
 import jalview.bin.Cache;
+import jalview.bin.Console;
 import jalview.bin.Jalview;
 import jalview.datamodel.PDBEntry;
 import jalview.datamodel.SequenceI;
@@ -48,16 +56,23 @@ import jalview.fts.core.FTSDataColumnPreferences;
 import jalview.fts.core.FTSRestRequest;
 import jalview.fts.core.FTSRestResponse;
 import jalview.fts.service.pdb.PDBFTSRestClient;
+import jalview.fts.service.threedbeacons.TDB_FTSData;
 import jalview.gui.structurechooser.PDBStructureChooserQuerySource;
 import jalview.gui.structurechooser.StructureChooserQuerySource;
 import jalview.gui.structurechooser.ThreeDBStructureChooserQuerySource;
 import jalview.io.DataSourceType;
+import jalview.io.JalviewFileChooser;
+import jalview.io.JalviewFileView;
 import jalview.jbgui.FilterOption;
 import jalview.jbgui.GStructureChooser;
+import jalview.structure.StructureImportSettings.TFType;
 import jalview.structure.StructureMapping;
 import jalview.structure.StructureSelectionManager;
 import jalview.util.MessageManager;
+import jalview.util.Platform;
+import jalview.util.StringUtils;
 import jalview.ws.DBRefFetcher;
+import jalview.ws.DBRefFetcher.FetchFinishedListenerI;
 import jalview.ws.seqfetcher.DbSourceProxy;
 import jalview.ws.sifts.SiftsSettings;
 
@@ -74,9 +89,9 @@ public class StructureChooser extends GStructureChooser
   private static final String AUTOSUPERIMPOSE = "AUTOSUPERIMPOSE";
 
   /**
-   * transient combo box choice for initiating 3db fetch
+   * warn user if need to fetch more than this many uniprot records at once
    */
-  private static final String VIEWS_QUERYING_TDB = "QUERY_3DB";
+  private static final int THRESHOLD_WARN_UNIPROT_FETCH_NEEDED = 20;
 
   private SequenceI selectedSequence;
 
@@ -96,6 +111,10 @@ public class StructureChooser extends GStructureChooser
 
   private String selectedPdbFileName;
 
+  private TFType localPdbTempfacType;
+
+  private String localPdbPaeMatrixFileName;
+
   private boolean isValidPBDEntry;
 
   private boolean cachedPDBExists;
@@ -108,11 +127,19 @@ public class StructureChooser extends GStructureChooser
 
   List<SequenceI> seqsWithoutSourceDBRef = null;
 
+  private boolean showChooserGUI = true;
+
   private static StructureViewer lastTargetedView = null;
 
   public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
           AlignmentPanel ap)
   {
+    this(selectedSeqs, selectedSeq, ap, true);
+  }
+
+  public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
+          AlignmentPanel ap, boolean showGUI)
+  {
     // which FTS engine to use
     data = StructureChooserQuerySource.getQuerySourceFor(selectedSeqs);
     initDialog();
@@ -121,6 +148,7 @@ public class StructureChooser extends GStructureChooser
     this.selectedSequence = selectedSeq;
     this.selectedSequences = selectedSeqs;
     this.progressIndicator = (ap == null) ? null : ap.alignFrame;
+    this.showChooserGUI = showGUI;
     init();
 
   }
@@ -165,7 +193,8 @@ public class StructureChooser extends GStructureChooser
       canQueryTDB = true;
       if (needCanonical)
       {
-        notQueriedTDBYet = false;
+        // triggers display of the 'Query TDB' button
+        notQueriedTDBYet = true;
       }
     }
   };
@@ -181,9 +210,19 @@ public class StructureChooser extends GStructureChooser
     }
 
     chk_superpose.setSelected(Cache.getDefault(AUTOSUPERIMPOSE, true));
+    btn_queryTDB.addActionListener(new ActionListener()
+    {
+
+      @Override
+      public void actionPerformed(ActionEvent e)
+      {
+        promptForTDBFetch(false);
+      }
+    });
 
     Executors.defaultThreadFactory().newThread(new Runnable()
     {
+      @Override
       public void run()
       {
         populateSeqsWithoutSourceDBRef();
@@ -225,11 +264,17 @@ public class StructureChooser extends GStructureChooser
     populateFilterComboBox(isStructuresDiscovered(), cachedPDBExists);
     discoverStructureViews();
     updateProgressIndicator(null, startTime);
-    mainFrame.setVisible(true);
+    mainFrame.setVisible(showChooserGUI);
     updateCurrentView();
   }
 
-  private void promptForTDBFetch()
+  /**
+   * raises dialog for Uniprot fetch followed by 3D beacons search
+   * 
+   * @param ignoreGui
+   *          - when true, don't ask, just fetch
+   */
+  public void promptForTDBFetch(boolean ignoreGui)
   {
     final long progressId = System.currentTimeMillis();
 
@@ -239,74 +284,102 @@ public class StructureChooser extends GStructureChooser
       @Override
       public void run()
       {
+        mainFrame.setEnabled(false);
+        cmb_filterOption.setEnabled(false);
+        progressBar.setProgressBar(
+                MessageManager.getString("status.searching_3d_beacons"),
+                progressId);
+        btn_queryTDB.setEnabled(false);
         // TODO: warn if no accessions discovered
         populateSeqsWithoutSourceDBRef();
         // redo initial discovery - this time with 3d beacons
         // Executors.
-        previousWantedFields=null;
-        
+        previousWantedFields = null;
+        lastSelected = (FilterOption) cmb_filterOption.getSelectedItem();
+        cmb_filterOption.setSelectedItem(null);
+        cachedPDBExists = false; // reset to initial
         initialStructureDiscovery();
+        if (!isStructuresDiscovered())
+        {
+          progressBar.setProgressBar(MessageManager.getString(
+                  "status.no_structures_discovered_from_3d_beacons"),
+                  progressId);
+          btn_queryTDB.setToolTipText(MessageManager.getString(
+                  "status.no_structures_discovered_from_3d_beacons"));
+          btn_queryTDB.setEnabled(false);
+          pnl_queryTDB.setVisible(false);
+        }
+        else
+        {
+          cmb_filterOption.setSelectedIndex(0); // select 'best'
+          btn_queryTDB.setVisible(false);
+          pnl_queryTDB.setVisible(false);
+          progressBar.setProgressBar(null, progressId);
+        }
+        mainFrame.setEnabled(true);
+        cmb_filterOption.setEnabled(true);
       }
     };
 
-    // fetch db refs if OK pressed
-    final Runnable discoverCanonicalDBrefs = new Runnable()
+    final FetchFinishedListenerI afterDbRefFetch = new FetchFinishedListenerI()
     {
+
       @Override
-      public void run()
+      public void finished()
       {
-        populateSeqsWithoutSourceDBRef();
+        // filter has been selected, so we set flag to remove ourselves
+        notQueriedTDBYet = false;
+        // new thread to discover structures - via 3d beacons
+        Executors.defaultThreadFactory().newThread(strucDiscovery).start();
 
-        final int y = seqsWithoutSourceDBRef.size();
-        if (y > 0)
-        {
-          SwingUtilities.invokeLater(new Runnable() {
-            @Override
-            public void run()
-            {
-              updateProgressIndicator(MessageManager.formatMessage(
-                      "status.fetching_dbrefs_for_sequences_without_valid_refs",
-                      y), progressId);
-              
-            }
-          });
-          
-          final SequenceI[] seqWithoutSrcDBRef = seqsWithoutSourceDBRef
-                  .toArray(new SequenceI[y]);
-          DBRefFetcher dbRefFetcher = new DBRefFetcher(seqWithoutSrcDBRef,
-                  progressBar, new DbSourceProxy[]
-                  { new jalview.ws.dbsources.Uniprot() }, null, false);
-
-          // ideally this would also gracefully run with callbacks
-          dbRefFetcher.fetchDBRefs(true);
-        }
-        SwingUtilities.invokeLater(new Runnable() {
-          @Override
-          public void run()
-          {
-            if (y>0) {
-              updateProgressIndicator("Fetch complete.", progressId); // todo i18n
-            }
-            // filter has been selected, so we set flag to remove ourselves
-            notQueriedTDBYet = false;
+      }
+    };
 
-            Executors.defaultThreadFactory().newThread(strucDiscovery).start();
+    // fetch db refs if OK pressed
+    final Callable discoverCanonicalDBrefs = () -> {
+      btn_queryTDB.setEnabled(false);
+      populateSeqsWithoutSourceDBRef();
 
-          }
-        });
-        
+      final int y = seqsWithoutSourceDBRef.size();
+      if (y > 0)
+      {
+        final SequenceI[] seqWithoutSrcDBRef = seqsWithoutSourceDBRef
+                .toArray(new SequenceI[y]);
+        DBRefFetcher dbRefFetcher = new DBRefFetcher(seqWithoutSrcDBRef,
+                progressBar, new DbSourceProxy[]
+                { new jalview.ws.dbsources.Uniprot() }, null, false);
+        dbRefFetcher.addListener(afterDbRefFetch);
+        // ideally this would also gracefully run with callbacks
+
+        dbRefFetcher.fetchDBRefs(true);
       }
+      else
+      {
+        // call finished action directly
+        afterDbRefFetch.finished();
+      }
+      return null;
     };
-    final Runnable revertview = new Runnable() {
-      public void run() {
-        if (lastSelected!=null) {
-          cmb_filterOption.setSelectedItem(lastSelected);
-        }
-      };
+    final Callable revertview = () -> {
+      if (lastSelected != null)
+      {
+        cmb_filterOption.setSelectedItem(lastSelected);
+      }
+      return null;
     };
+    int threshold = Cache.getDefault("UNIPROT_AUTOFETCH_THRESHOLD",
+            THRESHOLD_WARN_UNIPROT_FETCH_NEEDED);
+    Console.debug("Using Uniprot fetch threshold of " + threshold);
+    if (ignoreGui || seqsWithoutSourceDBRef.size() < threshold)
+    {
+      Executors.newSingleThreadExecutor().submit(discoverCanonicalDBrefs);
+      return;
+    }
     // need cancel and no to result in the discoverPDB action - mocked is
-    // 'cancel'
-    JvOptionPane.newOptionDialog(this)
+    // 'cancel' TODO: mock should be OK
+
+    StructureChooser thisSC = this;
+    JvOptionPane.newOptionDialog(thisSC.getFrame())
             .setResponseHandler(JvOptionPane.OK_OPTION,
                     discoverCanonicalDBrefs)
             .setResponseHandler(JvOptionPane.CANCEL_OPTION, revertview)
@@ -315,13 +388,12 @@ public class StructureChooser extends GStructureChooser
                     MessageManager.formatMessage(
                             "label.fetch_references_for_3dbeacons",
                             seqsWithoutSourceDBRef.size()),
-                    MessageManager
-                            .getString("label.3dbeacons"),
+                    MessageManager.getString("label.3dbeacons"),
                     JvOptionPane.YES_NO_OPTION, JvOptionPane.PLAIN_MESSAGE,
                     null, new Object[]
                     { MessageManager.getString("action.ok"),
                         MessageManager.getString("action.cancel") },
-                    MessageManager.getString("action.ok"));
+                    MessageManager.getString("action.ok"), false);
   }
 
   /**
@@ -592,9 +664,9 @@ public class StructureChooser extends GStructureChooser
     // TODO: JAL-3048 not needed for Jalview-JS until JSmol dep and
     // StructureChooser
     // works
-    jalview.io.JalviewFileChooser chooser = new jalview.io.JalviewFileChooser(
-            jalview.bin.Cache.getProperty("LAST_DIRECTORY"));
-    chooser.setFileView(new jalview.io.JalviewFileView());
+    JalviewFileChooser chooser = new JalviewFileChooser(
+            Cache.getProperty("LAST_DIRECTORY"));
+    chooser.setFileView(new JalviewFileView());
     chooser.setDialogTitle(
             MessageManager.formatMessage("label.select_pdb_file_for",
                     selectedSequence.getDisplayId(false)));
@@ -603,15 +675,83 @@ public class StructureChooser extends GStructureChooser
             selectedSequence.getDisplayId(false)));
 
     int value = chooser.showOpenDialog(null);
-    if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
+    if (value == JalviewFileChooser.APPROVE_OPTION)
     {
       selectedPdbFileName = chooser.getSelectedFile().getPath();
-      jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
+      Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
+      localPdbPaeMatrixFileName = guessPAEFilename();
       validateSelections();
     }
   }
 
   /**
+   * Handles action event for btn_pdbFromFile
+   */
+  @Override
+  protected void paeMatrixFile_actionPerformed()
+  {
+    File pdbFile = new File(selectedPdbFileName);
+    String setFile = Cache.getProperty("LAST_DIRECTORY");
+    if (localPdbPaeMatrixFileName != null)
+    {
+      File paeFile = new File(localPdbPaeMatrixFileName);
+      if (paeFile.exists())
+        setFile = paeFile.getAbsolutePath();
+      else if (paeFile.getParentFile().exists())
+        setFile = paeFile.getParentFile().getAbsolutePath();
+    }
+    else
+    {
+      String guess = guessPAEFilename();
+      if (guess != null)
+        setFile = guess;
+    }
+    JalviewFileChooser chooser = new JalviewFileChooser(setFile);
+    chooser.setFileView(new JalviewFileView());
+    chooser.setDialogTitle(MessageManager.formatMessage(
+            "label.select_pae_matrix_file_for", pdbFile.getName()));
+    chooser.setToolTipText(MessageManager.formatMessage(
+            "label.load_pae_matrix_file_associate_with_structure",
+            pdbFile.getName()));
+
+    int value = chooser.showOpenDialog(null);
+    if (value == JalviewFileChooser.APPROVE_OPTION)
+    {
+      localPdbPaeMatrixFileName = chooser.getSelectedFile().getPath();
+      Cache.setProperty("LAST_DIRECTORY", localPdbPaeMatrixFileName);
+    }
+    validateAssociationFromFile();
+  }
+
+  private String guessPAEFilename()
+  {
+    if (selectedPdbFileName.toLowerCase(Locale.ROOT).endsWith(".pdb"))
+    {
+      String jsonExt = selectedPdbFileName.substring(0,
+              selectedPdbFileName.length() - 4) + ".json";
+      // AlphaFold naming scheme
+      String guessFile1 = StringUtils.replaceLast(jsonExt, "model",
+              "predicted_aligned_error");
+      // nf-core mode naming scheme
+      String guessFile2 = StringUtils.replaceLast(jsonExt, ".json",
+              "_scores.json");
+      if (new File(guessFile1).exists())
+      {
+        return guessFile1;
+      }
+      else if (new File(jsonExt).exists())
+      {
+        return jsonExt;
+      }
+      else if (new File(guessFile2).exists())
+      {
+        return guessFile2;
+      }
+    }
+    return null;
+  }
+
+  /**
    * Populates the filter combo-box options dynamically depending on discovered
    * structures
    */
@@ -661,10 +801,8 @@ public class StructureChooser extends GStructureChooser
                     "-", VIEWS_FROM_FILE, false, null));
     if (canQueryTDB && notQueriedTDBYet)
     {
-      FilterOption queryTDBOption = new FilterOption(
-              MessageManager.getString("label.search_3dbeacons"), "-",
-              VIEWS_QUERYING_TDB, false, null);
-      cmb_filterOption.addItem(queryTDBOption);
+      btn_queryTDB.setVisible(true);
+      pnl_queryTDB.setVisible(true);
     }
 
     if (cachedPDBExist)
@@ -692,13 +830,7 @@ public class StructureChooser extends GStructureChooser
   {
     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
             .getSelectedItem());
-    
-    // first check if we need to rebuild dialog
-    if (selectedFilterOpt.getView() == VIEWS_QUERYING_TDB)
-    {
-      promptForTDBFetch();
-      return;
-    }
+
     if (lastSelected == selectedFilterOpt)
     {
       // don't need to do anything, probably
@@ -713,7 +845,7 @@ public class StructureChooser extends GStructureChooser
     String filterTitle = mainFrame.getTitle();
     mainFrame.setTitle(frameTitle);
     chk_invertFilter.setVisible(false);
-    
+
     if (selectedFilterOpt.getView() == VIEWS_FILTER)
     {
       mainFrame.setTitle(filterTitle);
@@ -798,6 +930,46 @@ public class StructureChooser extends GStructureChooser
             .setEnabled(selectedCount > 1 || targetView.getItemCount() > 0);
   }
 
+  @Override
+  protected boolean showPopupFor(int selectedRow, int x, int y)
+  {
+    FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+            .getSelectedItem());
+    String currentView = selectedFilterOpt.getView();
+
+    if (currentView == VIEWS_FILTER
+            && data instanceof ThreeDBStructureChooserQuerySource)
+    {
+
+      TDB_FTSData row = ((ThreeDBStructureChooserQuerySource) data)
+              .getFTSDataFor(getResultTable(), selectedRow,
+                      discoveredStructuresSet);
+      String pageUrl = row.getModelViewUrl();
+      JPopupMenu popup = new JPopupMenu("3D Beacons");
+      JMenuItem viewUrl = new JMenuItem("View model web page");
+      viewUrl.addActionListener(new ActionListener()
+      {
+        @Override
+        public void actionPerformed(ActionEvent e)
+        {
+          Desktop.showUrl(pageUrl);
+        }
+      });
+      popup.add(viewUrl);
+      SwingUtilities.invokeLater(new Runnable()
+      {
+        @Override
+        public void run()
+        {
+          popup.show(getResultTable(), x, y);
+        }
+      });
+      return true;
+    }
+    // event not handled by us
+    return false;
+  }
+
   /**
    * Validates inputs from the Manual PDB entry panel
    */
@@ -846,7 +1018,9 @@ public class StructureChooser extends GStructureChooser
   {
     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) fileChooserAssSeqPanel
             .getCmb_assSeq().getSelectedItem();
-    lbl_fromFileStatus.setIcon(errorImage);
+    // lbl_fromFileStatus.setIcon(errorImage);
+    String pdbFileString = "";
+    String pdbFileTooltip = "";
     if (selectedSequences.length == 1 || (assSeqOpt != null && !assSeqOpt
             .getName().equalsIgnoreCase("-Select Associated Seq-")))
     {
@@ -854,14 +1028,44 @@ public class StructureChooser extends GStructureChooser
       if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
       {
         btn_add.setEnabled(true);
-        lbl_fromFileStatus.setIcon(goodImage);
+        // lbl_fromFileStatus.setIcon(goodImage);
+        pdbFileString = new File(selectedPdbFileName).getName();
+        pdbFileTooltip = new File(selectedPdbFileName).getAbsolutePath();
+        setPdbOptionsEnabled(true);
+      }
+      else
+      {
+        pdbFileString = MessageManager.getString("label.none");
+        pdbFileTooltip = MessageManager.getString("label.nothing_selected");
       }
     }
     else
     {
       btn_pdbFromFile.setEnabled(false);
-      lbl_fromFileStatus.setIcon(errorImage);
+      // lbl_fromFileStatus.setIcon(errorImage);
+      pdbFileString = MessageManager.getString("label.none");
+      pdbFileTooltip = MessageManager.getString("label.nothing_selected");
+    }
+    lbl_pdbFile.setText(pdbFileString);
+    lbl_pdbFile.setToolTipText(pdbFileTooltip);
+
+    // PAE file choice
+    String paeFileString = "";
+    String paeFileTooltip = "";
+    if (localPdbPaeMatrixFileName != null
+            && localPdbPaeMatrixFileName.length() > 0)
+    {
+      paeFileString = new File(localPdbPaeMatrixFileName).getName();
+      paeFileTooltip = new File(localPdbPaeMatrixFileName)
+              .getAbsolutePath();
     }
+    else
+    {
+      paeFileString = MessageManager.getString("label.none");
+      paeFileTooltip = MessageManager.getString("label.nothing_selected");
+    }
+    lbl_paeFile.setText(paeFileString);
+    lbl_paeFile.setToolTipText(paeFileTooltip);
   }
 
   @Override
@@ -869,7 +1073,9 @@ public class StructureChooser extends GStructureChooser
   {
     validateSelections();
   }
-  private FilterOption lastSelected=null;
+
+  private FilterOption lastSelected = null;
+
   /**
    * Handles the state change event for the 'filter' combo-box and 'invert'
    * check-box
@@ -1026,7 +1232,8 @@ public class StructureChooser extends GStructureChooser
             if (pdbIdStr.split(":").length > 1)
             {
               pdbEntry.setId(pdbIdStr.split(":")[0]);
-              pdbEntry.setChainCode(pdbIdStr.split(":")[1].toUpperCase());
+              pdbEntry.setChainCode(
+                      pdbIdStr.split(":")[1].toUpperCase(Locale.ROOT));
             }
             else
             {
@@ -1253,7 +1460,7 @@ public class StructureChooser extends GStructureChooser
             // TODO move this pdb id search into the PDB specific
             // FTSSearchEngine
             // for moment, it will work fine as is because it is self-contained
-            String searchTerm = text.toLowerCase();
+            String searchTerm = text.toLowerCase(Locale.ROOT);
             searchTerm = searchTerm.split(":")[0];
             // System.out.println(">>>>> search term : " + searchTerm);
             List<FTSDataColumnI> wantedFields = new ArrayList<>();
@@ -1294,6 +1501,7 @@ public class StructureChooser extends GStructureChooser
   {
     if (selectedSequences != null)
     {
+      lbl_loading.setVisible(true);
       Thread refreshThread = new Thread(new Runnable()
       {
         @Override
@@ -1305,6 +1513,7 @@ public class StructureChooser extends GStructureChooser
           filterResultSet(
                   ((FilterOption) cmb_filterOption.getSelectedItem())
                           .getValue());
+          lbl_loading.setVisible(false);
         }
       });
       refreshThread.start();
@@ -1425,7 +1634,8 @@ public class StructureChooser extends GStructureChooser
   @Override
   public void setProgressBar(String message, long id)
   {
-    progressBar.setProgressBar(message, id);
+    if (!Platform.isHeadless())
+      progressBar.setProgressBar(message, id);
   }
 
   @Override
@@ -1463,4 +1673,48 @@ public class StructureChooser extends GStructureChooser
             && mainFrame.isVisible()
             && cmb_filterOption.getSelectedItem() != null;
   }
+
+  /**
+   * 
+   * @return true if the 3D-Beacons query button will/has been displayed
+   */
+  public boolean isCanQueryTDB()
+  {
+    return canQueryTDB;
+  }
+
+  public boolean isNotQueriedTDBYet()
+  {
+    return notQueriedTDBYet;
+  }
+
+  /**
+   * Open a single structure file for a given sequence
+   */
+  public static void openStructureFileForSequence(AlignmentPanel ap,
+          SequenceI seq, File sFile)
+  {
+    // Open the chooser headlessly. Not sure this is actually needed ?
+    StructureChooser sc = new StructureChooser(new SequenceI[] { seq }, seq,
+            ap, false);
+    StructureSelectionManager ssm = ap.getStructureSelectionManager();
+    PDBEntry fileEntry = null;
+    try
+    {
+      fileEntry = new AssociatePdbFileWithSeq().associatePdbWithSeq(
+              sFile.getAbsolutePath(), DataSourceType.FILE, seq, true,
+              Desktop.instance);
+    } catch (Exception e)
+    {
+      Console.error("Could not open structure file '"
+              + sFile.getAbsolutePath() + "'");
+      return;
+    }
+
+    StructureViewer sViewer = sc.launchStructureViewer(ssm,
+            new PDBEntry[]
+            { fileEntry }, ap, new SequenceI[] { seq });
+
+    sc.mainFrame.dispose();
+  }
 }