JAL-1645 Version-Rel Version 2.9 Year-Rel 2015 Licensing glob
[jalview.git] / src / jalview / gui / FeatureSettings.java
old mode 100755 (executable)
new mode 100644 (file)
index de61be3..a2d0559
 /*
- * Jalview - A Sequence Alignment Editor and Viewer
- * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 package jalview.gui;
 
-import java.io.*;
-import java.util.*;
-
-import java.awt.*;
-import java.awt.event.*;
+import jalview.api.FeatureSettingsControllerI;
+import jalview.bin.Cache;
+import jalview.datamodel.SequenceFeature;
+import jalview.datamodel.SequenceI;
+import jalview.gui.Help.HelpId;
+import jalview.io.JalviewFileChooser;
+import jalview.schemes.AnnotationColourGradient;
+import jalview.schemes.GraduatedColor;
+import jalview.util.MessageManager;
+import jalview.viewmodel.AlignmentViewport;
+import jalview.ws.dbsources.das.api.jalviewSourceI;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.GridLayout;
+import java.awt.Rectangle;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseMotionAdapter;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
-
-import javax.swing.*;
-import javax.swing.event.*;
-import javax.swing.table.*;
-
-import jalview.datamodel.*;
-import jalview.io.*;
-
-public class FeatureSettings
-    extends JPanel
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+import java.util.Vector;
+
+import javax.help.HelpSetException;
+import javax.swing.AbstractCellEditor;
+import javax.swing.BorderFactory;
+import javax.swing.Icon;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JCheckBoxMenuItem;
+import javax.swing.JColorChooser;
+import javax.swing.JDialog;
+import javax.swing.JInternalFrame;
+import javax.swing.JLabel;
+import javax.swing.JLayeredPane;
+import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JPopupMenu;
+import javax.swing.JScrollPane;
+import javax.swing.JSlider;
+import javax.swing.JTabbedPane;
+import javax.swing.JTable;
+import javax.swing.ListSelectionModel;
+import javax.swing.SwingConstants;
+import javax.swing.SwingUtilities;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.swing.table.AbstractTableModel;
+import javax.swing.table.TableCellEditor;
+import javax.swing.table.TableCellRenderer;
+
+public class FeatureSettings extends JPanel implements
+        FeatureSettingsControllerI
 {
   DasSourceBrowser dassourceBrowser;
+
   jalview.ws.DasSequenceFeatureFetcher dasFeatureFetcher;
+
   JPanel settingsPane = new JPanel();
+
   JPanel dasSettingsPane = new JPanel();
 
   final FeatureRenderer fr;
+
   public final AlignFrame af;
+
   Object[][] originalData;
+
+  private float originalTransparency;
+
   final JInternalFrame frame;
+
   JScrollPane scrollPane = new JScrollPane();
+
   JTable table;
+
   JPanel groupPanel;
+
   JSlider transparency = new JSlider();
 
-  JPanel transPanel = new JPanel(new FlowLayout());
+  JPanel transPanel = new JPanel(new GridLayout(1, 2));
 
   public FeatureSettings(AlignFrame af)
   {
     this.af = af;
     fr = af.getFeatureRenderer();
-
-    transparency.setMaximum(100 - (int) (fr.transparency * 100));
+    // allow transparency to be recovered
+    transparency.setMaximum(100 - (int) ((originalTransparency = fr
+            .getTransparency()) * 100));
 
     try
     {
       jbInit();
-    }
-    catch (Exception ex)
+    } catch (Exception ex)
     {
       ex.printStackTrace();
     }
 
-    table = new JTable();
+    table = new JTable()
+    {
+      @Override
+      public String getToolTipText(MouseEvent e)
+      {
+        if (table.columnAtPoint(e.getPoint()) == 0)
+        {
+          /*
+           * Tooltip for feature name only
+           */
+          return JvSwingUtils.wrapTooltip(true, MessageManager
+                  .getString("label.feature_settings_click_drag"));
+        }
+        return null;
+      }
+    };
     table.getTableHeader().setFont(new Font("Verdana", Font.PLAIN, 12));
     table.setFont(new Font("Verdana", Font.PLAIN, 12));
-    table.setDefaultRenderer(Color.class,
-                             new ColorRenderer());
+    table.setDefaultRenderer(Color.class, new ColorRenderer());
 
-    table.setDefaultEditor(Color.class,
-                           new ColorEditor());
+    table.setDefaultEditor(Color.class, new ColorEditor(this));
 
+    table.setDefaultEditor(GraduatedColor.class, new ColorEditor(this));
+    table.setDefaultRenderer(GraduatedColor.class, new ColorRenderer());
     table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 
     table.addMouseListener(new MouseAdapter()
@@ -84,6 +167,32 @@ public class FeatureSettings
       public void mousePressed(MouseEvent evt)
       {
         selectedRow = table.rowAtPoint(evt.getPoint());
+        if (SwingUtilities.isRightMouseButton(evt))
+        {
+          popupSort(selectedRow, (String) table.getValueAt(selectedRow, 0),
+                  table.getValueAt(selectedRow, 1), fr.getMinMax(),
+                  evt.getX(), evt.getY());
+        }
+        else if (evt.getClickCount() == 2)
+        {
+          fr.ap.alignFrame.avc.markColumnsContainingFeatures(
+                  evt.isAltDown(), evt.isShiftDown() || evt.isMetaDown(),
+                  evt.isMetaDown(),
+                  (String) table.getValueAt(selectedRow, 0));
+        }
+      }
+
+      // isPopupTrigger fires on mouseReleased on Mac
+      @Override
+      public void mouseReleased(MouseEvent evt)
+      {
+        selectedRow = table.rowAtPoint(evt.getPoint());
+        if (evt.isPopupTrigger())
+        {
+          popupSort(selectedRow, (String) table.getValueAt(selectedRow, 0),
+                  table.getValueAt(selectedRow, 1), fr.getMinMax(),
+                  evt.getX(), evt.getY());
+        }
       }
     });
 
@@ -92,9 +201,7 @@ public class FeatureSettings
       public void mouseDragged(MouseEvent evt)
       {
         int newRow = table.rowAtPoint(evt.getPoint());
-        if (newRow != selectedRow
-            && selectedRow != -1
-            && newRow != -1)
+        if (newRow != selectedRow && selectedRow != -1 && newRow != -1)
         {
           Object[] temp = new Object[3];
           temp[0] = table.getValueAt(selectedRow, 0);
@@ -113,27 +220,31 @@ public class FeatureSettings
         }
       }
     });
-
+    // table.setToolTipText(JvSwingUtils.wrapTooltip(true,
+    // MessageManager.getString("label.feature_settings_click_drag")));
     scrollPane.setViewportView(table);
 
-    dassourceBrowser = new DasSourceBrowser();
+    dassourceBrowser = new DasSourceBrowser(this);
     dasSettingsPane.add(dassourceBrowser, BorderLayout.CENTER);
 
-    if (af.getViewport().featuresDisplayed == null || fr.renderOrder == null)
+    if (af.getViewport().isShowSequenceFeatures() || !fr.hasRenderOrder())
     {
       fr.findAllFeatures(true); // display everything!
     }
 
-    setTableData();
+    discoverAllFeatureData();
     final PropertyChangeListener change;
-    final FeatureSettings fs=this;
-    fr.addPropertyChangeListener(change=new PropertyChangeListener() {
+    final FeatureSettings fs = this;
+    fr.addPropertyChangeListener(change = new PropertyChangeListener()
+    {
       public void propertyChange(PropertyChangeEvent evt)
       {
-        if (!fs.resettingTable && !fs.handlingUpdate) {
-          fs.handlingUpdate=true;
-          fs.resetTable(null); // new groups may be added with new seuqence feature types only
-          fs.handlingUpdate=false;
+        if (!fs.resettingTable && !fs.handlingUpdate)
+        {
+          fs.handlingUpdate = true;
+          fs.resetTable(null); // new groups may be added with new seuqence
+          // feature types only
+          fs.handlingUpdate = false;
         }
       }
 
@@ -141,48 +252,193 @@ public class FeatureSettings
 
     frame = new JInternalFrame();
     frame.setContentPane(this);
-    Desktop.addInternalFrame(frame, "Sequence Feature Settings", 400, 450);
+    if (new jalview.util.Platform().isAMac())
+    {
+      Desktop.addInternalFrame(frame,
+              MessageManager.getString("label.sequence_feature_settings"),
+              475, 480);
+    }
+    else
+    {
+      Desktop.addInternalFrame(frame,
+              MessageManager.getString("label.sequence_feature_settings"),
+              400, 450);
+    }
+
     frame.addInternalFrameListener(new javax.swing.event.InternalFrameAdapter()
     {
       public void internalFrameClosed(
-          javax.swing.event.InternalFrameEvent evt)
+              javax.swing.event.InternalFrameEvent evt)
       {
         fr.removePropertyChangeListener(change);
-      }
-      ;
+        dassourceBrowser.fs = null;
+      };
     });
     frame.setLayer(JLayeredPane.PALETTE_LAYER);
   }
+
+  protected void popupSort(final int selectedRow, final String type,
+          final Object typeCol, final Hashtable minmax, int x, int y)
+  {
+    JPopupMenu men = new JPopupMenu(MessageManager.formatMessage(
+            "label.settings_for_param", new String[] { type }));
+    JMenuItem scr = new JMenuItem(
+            MessageManager.getString("label.sort_by_score"));
+    men.add(scr);
+    final FeatureSettings me = this;
+    scr.addActionListener(new ActionListener()
+    {
+
+      public void actionPerformed(ActionEvent e)
+      {
+        me.af.avc.sortAlignmentByFeatureScore(new String[] { type });
+      }
+
+    });
+    JMenuItem dens = new JMenuItem(
+            MessageManager.getString("label.sort_by_density"));
+    dens.addActionListener(new ActionListener()
+    {
+
+      public void actionPerformed(ActionEvent e)
+      {
+        me.af.avc.sortAlignmentByFeatureDensity(new String[] { type });
+      }
+
+    });
+    men.add(dens);
+    if (minmax != null)
+    {
+      final Object typeMinMax = minmax.get(type);
+      /*
+       * final JCheckBoxMenuItem chb = new JCheckBoxMenuItem("Vary Height"); //
+       * this is broken at the moment and isn't that useful anyway!
+       * chb.setSelected(minmax.get(type) != null); chb.addActionListener(new
+       * ActionListener() {
+       * 
+       * public void actionPerformed(ActionEvent e) {
+       * chb.setState(chb.getState()); if (chb.getState()) { minmax.put(type,
+       * null); } else { minmax.put(type, typeMinMax); } }
+       * 
+       * });
+       * 
+       * men.add(chb);
+       */
+      if (typeMinMax != null && ((float[][]) typeMinMax)[0] != null)
+      {
+        // if (table.getValueAt(row, column));
+        // graduated colourschemes for those where minmax exists for the
+        // positional features
+        final JCheckBoxMenuItem mxcol = new JCheckBoxMenuItem(
+                "Graduated Colour");
+        mxcol.setSelected(!(typeCol instanceof Color));
+        men.add(mxcol);
+        mxcol.addActionListener(new ActionListener()
+        {
+          JColorChooser colorChooser;
+
+          public void actionPerformed(ActionEvent e)
+          {
+            if (e.getSource() == mxcol)
+            {
+              if (typeCol instanceof Color)
+              {
+                FeatureColourChooser fc = new FeatureColourChooser(me.fr,
+                        type);
+                fc.addActionListener(this);
+              }
+              else
+              {
+                // bring up simple color chooser
+                colorChooser = new JColorChooser();
+                JDialog dialog = JColorChooser.createDialog(me,
+                        "Select new Colour", true, // modal
+                        colorChooser, this, // OK button handler
+                        null); // no CANCEL button handler
+                colorChooser.setColor(((GraduatedColor) typeCol)
+                        .getMaxColor());
+                dialog.setVisible(true);
+              }
+            }
+            else
+            {
+              if (e.getSource() instanceof FeatureColourChooser)
+              {
+                FeatureColourChooser fc = (FeatureColourChooser) e
+                        .getSource();
+                table.setValueAt(fc.getLastColour(), selectedRow, 1);
+                table.validate();
+              }
+              else
+              {
+                // probably the color chooser!
+                table.setValueAt(colorChooser.getColor(), selectedRow, 1);
+                table.validate();
+                me.updateFeatureRenderer(
+                        ((FeatureTableModel) table.getModel()).getData(),
+                        false);
+              }
+            }
+          }
+
+        });
+      }
+    }
+    JMenuItem selCols = new JMenuItem(
+            MessageManager.getString("label.select_columns_containing"));
+    selCols.addActionListener(new ActionListener()
+    {
+
+      @Override
+      public void actionPerformed(ActionEvent arg0)
+      {
+        fr.ap.alignFrame.avc.markColumnsContainingFeatures(false, false,
+                false, type);
+      }
+    });
+    JMenuItem clearCols = new JMenuItem(
+            MessageManager.getString("label.select_columns_not_containing"));
+    clearCols.addActionListener(new ActionListener()
+    {
+
+      @Override
+      public void actionPerformed(ActionEvent arg0)
+      {
+        fr.ap.alignFrame.avc.markColumnsContainingFeatures(true, false,
+                false, type);
+      }
+    });
+    men.add(selCols);
+    men.add(clearCols);
+    men.show(table, x, y);
+  }
+
   /**
    * true when Feature Settings are updating from feature renderer
    */
-  private boolean handlingUpdate=false;
+  private boolean handlingUpdate = false;
 
   /**
    * contains a float[3] for each feature type string. created by setTableData
    */
-  Hashtable typeWidth=null;
-  synchronized public void setTableData()
+  Hashtable typeWidth = null;
+
+  @Override
+  synchronized public void discoverAllFeatureData()
   {
-    if (fr.featureGroups == null)
-    {
-      fr.featureGroups = new Hashtable();
-    }
     Vector allFeatures = new Vector();
     Vector allGroups = new Vector();
     SequenceFeature[] tmpfeatures;
     String group;
-    for (int i = 0; i < af.getViewport().alignment.getHeight(); i++)
+    for (int i = 0; i < af.getViewport().getAlignment().getHeight(); i++)
     {
-      if (af.getViewport().alignment.getSequenceAt(i).getDatasetSequence().
-          getSequenceFeatures() == null)
+      tmpfeatures = af.getViewport().getAlignment().getSequenceAt(i)
+              .getSequenceFeatures();
+      if (tmpfeatures == null)
       {
         continue;
       }
 
-      tmpfeatures = af.getViewport().alignment.getSequenceAt(i).
-          getDatasetSequence().getSequenceFeatures();
-
       int index = 0;
       while (index < tmpfeatures.length)
       {
@@ -198,10 +454,7 @@ public class FeatureSettings
           if (!allGroups.contains(group))
           {
             allGroups.addElement(group);
-            if (group!=null)
-            {
-              checkGroupState(group);
-            }
+            checkGroupState(group);
           }
         }
 
@@ -217,88 +470,84 @@ public class FeatureSettings
 
     validate();
   }
+
   /**
-   *
+   * Synchronise gui group list and check visibility of group
+   * 
    * @param group
-   * @return true if group has been seen before and is already added to set.
+   * @return true if group is visible
    */
-  private boolean checkGroupState(String group) {
-    boolean visible;
-    if (fr.featureGroups.containsKey(group))
+  private boolean checkGroupState(String group)
+  {
+    boolean visible = fr.checkGroupVisibility(group, true);
+
+    if (groupPanel == null)
     {
-      visible = ( (Boolean) fr.featureGroups.get(group)).booleanValue();
-        } else {
-        visible=true; // new group is always made visible
-      }
+      groupPanel = new JPanel();
+    }
 
-      if (groupPanel == null)
+    boolean alreadyAdded = false;
+    for (int g = 0; g < groupPanel.getComponentCount(); g++)
+    {
+      if (((JCheckBox) groupPanel.getComponent(g)).getText().equals(group))
       {
-        groupPanel = new JPanel();
+        alreadyAdded = true;
+        ((JCheckBox) groupPanel.getComponent(g)).setSelected(visible);
+        break;
       }
+    }
+
+    if (alreadyAdded)
+    {
 
-      boolean alreadyAdded = false;
-      for (int g = 0; g < groupPanel.getComponentCount(); g++)
+      return visible;
+    }
+    final String grp = group;
+    final JCheckBox check = new JCheckBox(group, visible);
+    check.setFont(new Font("Serif", Font.BOLD, 12));
+    check.addItemListener(new ItemListener()
+    {
+      public void itemStateChanged(ItemEvent evt)
       {
-        if ( ( (JCheckBox) groupPanel.getComponent(g))
-            .getText().equals(group))
+        fr.setGroupVisibility(check.getText(), check.isSelected());
+        af.alignPanel.getSeqPanel().seqCanvas.repaint();
+        if (af.alignPanel.overviewPanel != null)
         {
-          alreadyAdded = true;
-          ((JCheckBox)groupPanel.getComponent(g)).setSelected(visible);
-          break;
+          af.alignPanel.overviewPanel.updateOverviewImage();
         }
-      }
-
-      if (alreadyAdded)
-      {
 
-        return true;
+        resetTable(new String[] { grp });
       }
+    });
+    groupPanel.add(check);
+    return visible;
+  }
 
-      fr.featureGroups.put(group, new Boolean(visible));
-      final String grp = group;
-      final JCheckBox check = new JCheckBox(group, visible);
-      check.setFont(new Font("Serif", Font.BOLD, 12));
-      check.addItemListener(new ItemListener()
-      {
-        public void itemStateChanged(ItemEvent evt)
-        {
-          fr.featureGroups.put(check.getText(),
-                               new Boolean(check.isSelected()));
-          af.alignPanel.seqPanel.seqCanvas.repaint();
-          if (af.alignPanel.overviewPanel != null)
-          {
-            af.alignPanel.overviewPanel.updateOverviewImage();
-          }
+  boolean resettingTable = false;
 
-          resetTable(new String[] { grp } );
-        }
-      });
-      groupPanel.add(check);
-      return false;
-  }
-  boolean resettingTable=false;
   synchronized void resetTable(String[] groupChanged)
   {
-    if (resettingTable==true)
+    if (resettingTable == true)
     {
       return;
     }
-    resettingTable=true;
-    typeWidth=new Hashtable();
-    // TODO: change avWidth calculation to 'per-sequence' average and use long rather than float
-    float[] avWidth=null;
+    resettingTable = true;
+    typeWidth = new Hashtable();
+    // TODO: change avWidth calculation to 'per-sequence' average and use long
+    // rather than float
+    float[] avWidth = null;
     SequenceFeature[] tmpfeatures;
     String group = null, type;
     Vector visibleChecks = new Vector();
 
-    //Find out which features should be visible depending on which groups
-    //are selected / deselected
-    //and recompute average width ordering
-    for (int i = 0; i < af.getViewport().alignment.getHeight(); i++)
+    // Find out which features should be visible depending on which groups
+    // are selected / deselected
+    // and recompute average width ordering
+    for (int i = 0; i < af.getViewport().getAlignment().getHeight(); i++)
     {
 
-      tmpfeatures = af.getViewport().alignment.getSequenceAt(i).
-          getDatasetSequence().getSequenceFeatures();
+      tmpfeatures = af.getViewport().getAlignment().getSequenceAt(i)
+              .getSequenceFeatures();
       if (tmpfeatures == null)
       {
         continue;
@@ -315,28 +564,33 @@ public class FeatureSettings
           continue;
         }
 
-        if (group == null || fr.featureGroups.get(group) == null ||
-            ( (Boolean) fr.featureGroups.get(group)).booleanValue())
+        if (group == null || checkGroupState(group))
         {
-          if (group!=null)
-            checkGroupState(group);
           type = tmpfeatures[index].getType();
           if (!visibleChecks.contains(type))
           {
             visibleChecks.addElement(type);
           }
         }
-        if (!typeWidth.containsKey(tmpfeatures[index].getType())) {
-          typeWidth.put(tmpfeatures[index].getType(), avWidth=new float[3]);
-        } else {
+        if (!typeWidth.containsKey(tmpfeatures[index].getType()))
+        {
+          typeWidth.put(tmpfeatures[index].getType(),
+                  avWidth = new float[3]);
+        }
+        else
+        {
           avWidth = (float[]) typeWidth.get(tmpfeatures[index].getType());
         }
         avWidth[0]++;
-        if (tmpfeatures[index].getBegin()>tmpfeatures[index].getEnd())
+        if (tmpfeatures[index].getBegin() > tmpfeatures[index].getEnd())
         {
-          avWidth[1]+=1+tmpfeatures[index].getBegin()-tmpfeatures[index].getEnd();
-        } else {
-          avWidth[1]+=1+tmpfeatures[index].getEnd()-tmpfeatures[index].getBegin();
+          avWidth[1] += 1 + tmpfeatures[index].getBegin()
+                  - tmpfeatures[index].getEnd();
+        }
+        else
+        {
+          avWidth[1] += 1 + tmpfeatures[index].getEnd()
+                  - tmpfeatures[index].getBegin();
         }
         index++;
       }
@@ -346,15 +600,20 @@ public class FeatureSettings
     Object[][] data = new Object[fSize][3];
     int dataIndex = 0;
 
-    if (fr.renderOrder != null)
+    if (fr.hasRenderOrder())
     {
       if (!handlingUpdate)
-        fr.findAllFeatures(groupChanged!=null); // prod to update colourschemes. but don't affect display
-      //First add the checks in the previous render order,
-      //in case the window has been closed and reopened
-      for (int ro = fr.renderOrder.length - 1; ro > -1; ro--)
       {
-        type = fr.renderOrder[ro];
+        fr.findAllFeatures(groupChanged != null); // prod to update
+        // colourschemes. but don't
+        // affect display
+        // First add the checks in the previous render order,
+        // in case the window has been closed and reopened
+      }
+      List<String> frl = fr.getRenderOrder();
+      for (int ro = frl.size() - 1; ro > -1; ro--)
+      {
+        type = frl.get(ro);
 
         if (!visibleChecks.contains(type))
         {
@@ -362,8 +621,9 @@ public class FeatureSettings
         }
 
         data[dataIndex][0] = type;
-        data[dataIndex][1] = fr.getColour(type);
-        data[dataIndex][2] = new Boolean(af.getViewport().featuresDisplayed.containsKey(type));
+        data[dataIndex][1] = fr.getFeatureStyle(type);
+        data[dataIndex][2] = new Boolean(af.getViewport()
+                .getFeaturesDisplayed().isVisible(type));
         dataIndex++;
         visibleChecks.removeElement(type);
       }
@@ -372,16 +632,16 @@ public class FeatureSettings
     fSize = visibleChecks.size();
     for (int i = 0; i < fSize; i++)
     {
-      //These must be extra features belonging to the group
-      //which was just selected
+      // These must be extra features belonging to the group
+      // which was just selected
       type = visibleChecks.elementAt(i).toString();
       data[dataIndex][0] = type;
 
-      data[dataIndex][1] = fr.getColour(type);
+      data[dataIndex][1] = fr.getFeatureStyle(type);
       if (data[dataIndex][1] == null)
       {
-        //"Colour has been updated in another view!!"
-        fr.renderOrder = null;
+        // "Colour has been updated in another view!!"
+        fr.clearRenderOrder();
         return;
       }
 
@@ -392,7 +652,10 @@ public class FeatureSettings
     if (originalData == null)
     {
       originalData = new Object[data.length][3];
-      System.arraycopy(data, 0, originalData, 0, data.length);
+      for (int i = 0; i < data.length; i++)
+      {
+        System.arraycopy(data[i], 0, originalData[i], 0, 3);
+      }
     }
 
     table.setModel(new FeatureTableModel(data));
@@ -400,47 +663,55 @@ public class FeatureSettings
 
     if (groupPanel != null)
     {
-      groupPanel.setLayout(
-          new GridLayout(fr.featureGroups.size() / 4 + 1, 4));
+      groupPanel.setLayout(new GridLayout(
+              fr.getFeatureGroupsSize() / 4 + 1, 4));
 
       groupPanel.validate();
       bigPanel.add(groupPanel, BorderLayout.NORTH);
     }
 
-    updateFeatureRenderer(data, groupChanged!=null);
-    resettingTable=false;
+    updateFeatureRenderer(data, groupChanged != null);
+    resettingTable = false;
   }
+
   /**
    * reorder data based on the featureRenderers global priority list.
+   * 
    * @param data
    */
   private void ensureOrder(Object[][] data)
   {
-    boolean sort=false;
+    boolean sort = false;
     float[] order = new float[data.length];
-    for (int i=0;i<order.length; i++)
+    for (int i = 0; i < order.length; i++)
     {
       order[i] = fr.getOrder(data[i][0].toString());
-      if (order[i]<0)
-        order[i] = fr.setOrder(data[i][0].toString(), i/order.length);
-      if (i>1)
-        sort = sort || order[i-1]>order[i];
+      if (order[i] < 0)
+      {
+        order[i] = fr.setOrder(data[i][0].toString(), i / order.length);
+      }
+      if (i > 1)
+      {
+        sort = sort || order[i - 1] > order[i];
+      }
     }
     if (sort)
+    {
       jalview.util.QuickSort.sort(order, data);
+    }
   }
 
   void load()
   {
-    JalviewFileChooser chooser = new JalviewFileChooser(jalview.bin.Cache.
-        getProperty(
-            "LAST_DIRECTORY"), new String[]
-        {"fc"},
-        new String[]
-        {"Sequence Feature Colours"}, "Sequence Feature Colours");
+    JalviewFileChooser chooser = new JalviewFileChooser(
+            jalview.bin.Cache.getProperty("LAST_DIRECTORY"),
+            new String[] { "fc" },
+            new String[] { "Sequence Feature Colours" },
+            "Sequence Feature Colours");
     chooser.setFileView(new jalview.io.JalviewFileView());
-    chooser.setDialogTitle("Load Feature Colours");
-    chooser.setToolTipText("Load");
+    chooser.setDialogTitle(MessageManager
+            .getString("label.load_feature_colours"));
+    chooser.setToolTipText(MessageManager.getString("action.load"));
 
     int value = chooser.showOpenDialog(this);
 
@@ -451,29 +722,78 @@ public class FeatureSettings
       try
       {
         InputStreamReader in = new InputStreamReader(new FileInputStream(
-            file), "UTF-8");
+                file), "UTF-8");
 
-        jalview.binding.JalviewUserColours jucs = new jalview.binding.
-            JalviewUserColours();
-        jucs = (jalview.binding.JalviewUserColours) jucs.unmarshal(in);
+        jalview.schemabinding.version2.JalviewUserColours jucs = new jalview.schemabinding.version2.JalviewUserColours();
+        jucs = jucs.unmarshal(in);
 
-        for (int i = jucs.getColourCount()-1; i >=0; i--)
+        for (int i = jucs.getColourCount() - 1; i >= 0; i--)
         {
           String name;
-          fr.setColour(name=jucs.getColour(i).getName(),
-                       new Color(Integer.parseInt(jucs.getColour(i).getRGB(),
-                                                  16)));
-          fr.setOrder(name,(i==0) ? 0 : i/jucs.getColourCount());
+          jalview.schemabinding.version2.Colour newcol = jucs.getColour(i);
+          if (newcol.hasMax())
+          {
+            Color mincol = null, maxcol = null;
+            try
+            {
+              mincol = new Color(Integer.parseInt(newcol.getMinRGB(), 16));
+              maxcol = new Color(Integer.parseInt(newcol.getRGB(), 16));
+
+            } catch (Exception e)
+            {
+              Cache.log.warn("Couldn't parse out graduated feature color.",
+                      e);
+            }
+            GraduatedColor gcol = new GraduatedColor(mincol, maxcol,
+                    newcol.getMin(), newcol.getMax());
+            if (newcol.hasAutoScale())
+            {
+              gcol.setAutoScaled(newcol.getAutoScale());
+            }
+            if (newcol.hasColourByLabel())
+            {
+              gcol.setColourByLabel(newcol.getColourByLabel());
+            }
+            if (newcol.hasThreshold())
+            {
+              gcol.setThresh(newcol.getThreshold());
+              gcol.setThreshType(AnnotationColourGradient.NO_THRESHOLD); // default
+            }
+            if (newcol.getThreshType().length() > 0)
+            {
+              String ttyp = newcol.getThreshType();
+              if (ttyp.equalsIgnoreCase("NONE"))
+              {
+                gcol.setThreshType(AnnotationColourGradient.NO_THRESHOLD);
+              }
+              if (ttyp.equalsIgnoreCase("ABOVE"))
+              {
+                gcol.setThreshType(AnnotationColourGradient.ABOVE_THRESHOLD);
+              }
+              if (ttyp.equalsIgnoreCase("BELOW"))
+              {
+                gcol.setThreshType(AnnotationColourGradient.BELOW_THRESHOLD);
+              }
+            }
+            fr.setColour(name = newcol.getName(), gcol);
+          }
+          else
+          {
+            fr.setColour(name = jucs.getColour(i).getName(), new Color(
+                    Integer.parseInt(jucs.getColour(i).getRGB(), 16)));
+          }
+          fr.setOrder(name, (i == 0) ? 0 : i / jucs.getColourCount());
         }
-        if (table!=null) {
+        if (table != null)
+        {
           resetTable(null);
-          Object[][] data=((FeatureTableModel) table.getModel()).getData();
+          Object[][] data = ((FeatureTableModel) table.getModel())
+                  .getData();
           ensureOrder(data);
-          updateFeatureRenderer(data,false);
+          updateFeatureRenderer(data, false);
           table.repaint();
         }
-      }
-      catch (Exception ex)
+      } catch (Exception ex)
       {
         System.out.println("Error loading User Colour File\n" + ex);
       }
@@ -482,52 +802,78 @@ public class FeatureSettings
 
   void save()
   {
-    JalviewFileChooser chooser = new JalviewFileChooser(jalview.bin.Cache.
-        getProperty(
-            "LAST_DIRECTORY"), new String[]
-        {"fc"},
-        new String[]
-        {"Sequence Feature Colours"}, "Sequence Feature Colours");
+    JalviewFileChooser chooser = new JalviewFileChooser(
+            jalview.bin.Cache.getProperty("LAST_DIRECTORY"),
+            new String[] { "fc" },
+            new String[] { "Sequence Feature Colours" },
+            "Sequence Feature Colours");
     chooser.setFileView(new jalview.io.JalviewFileView());
-    chooser.setDialogTitle("Save Feature Colour Scheme");
-    chooser.setToolTipText("Save");
+    chooser.setDialogTitle(MessageManager
+            .getString("label.save_feature_colours"));
+    chooser.setToolTipText(MessageManager.getString("action.save"));
 
     int value = chooser.showSaveDialog(this);
 
     if (value == JalviewFileChooser.APPROVE_OPTION)
     {
       String choice = chooser.getSelectedFile().getPath();
-      jalview.binding.JalviewUserColours ucs = new jalview.binding.
-          JalviewUserColours();
+      jalview.schemabinding.version2.JalviewUserColours ucs = new jalview.schemabinding.version2.JalviewUserColours();
       ucs.setSchemeName("Sequence Features");
       try
       {
         PrintWriter out = new PrintWriter(new OutputStreamWriter(
-            new FileOutputStream(choice), "UTF-8"));
-
-        Enumeration e = fr.featureColours.keys();
-        float[] sortOrder = new float[fr.featureColours.size()];
-        String[] sortTypes = new String[fr.featureColours.size()];
-        int i=0;
-        while (e.hasMoreElements())
+                new FileOutputStream(choice), "UTF-8"));
+
+        Set fr_colours = fr.getAllFeatureColours();
+        Iterator e = fr_colours.iterator();
+        float[] sortOrder = new float[fr_colours.size()];
+        String[] sortTypes = new String[fr_colours.size()];
+        int i = 0;
+        while (e.hasNext())
         {
-          sortTypes[i] = e.nextElement().toString();
-          sortOrder[i]  = fr.getOrder(sortTypes[i]);
+          sortTypes[i] = e.next().toString();
+          sortOrder[i] = fr.getOrder(sortTypes[i]);
           i++;
         }
         jalview.util.QuickSort.sort(sortOrder, sortTypes);
-        sortOrder=null;
-        for (i=0; i<sortTypes.length; i++) {
-          jalview.binding.Colour col = new jalview.binding.Colour();
+        sortOrder = null;
+        Object fcol;
+        GraduatedColor gcol;
+        for (i = 0; i < sortTypes.length; i++)
+        {
+          jalview.schemabinding.version2.Colour col = new jalview.schemabinding.version2.Colour();
           col.setName(sortTypes[i]);
-          col.setRGB(jalview.util.Format.getHexString(
-              fr.getColour(col.getName())));
+          col.setRGB(jalview.util.Format.getHexString(fr.getColour(col
+                  .getName())));
+          fcol = fr.getFeatureStyle(sortTypes[i]);
+          if (fcol instanceof GraduatedColor)
+          {
+            gcol = (GraduatedColor) fcol;
+            col.setMin(gcol.getMin());
+            col.setMax(gcol.getMax());
+            col.setMinRGB(jalview.util.Format.getHexString(gcol
+                    .getMinColor()));
+            col.setAutoScale(gcol.isAutoScale());
+            col.setThreshold(gcol.getThresh());
+            col.setColourByLabel(gcol.isColourByLabel());
+            switch (gcol.getThreshType())
+            {
+            case AnnotationColourGradient.NO_THRESHOLD:
+              col.setThreshType("NONE");
+              break;
+            case AnnotationColourGradient.ABOVE_THRESHOLD:
+              col.setThreshType("ABOVE");
+              break;
+            case AnnotationColourGradient.BELOW_THRESHOLD:
+              col.setThreshType("BELOW");
+              break;
+            }
+          }
           ucs.addColour(col);
         }
         ucs.marshal(out);
         out.close();
-      }
-      catch (Exception ex)
+      } catch (Exception ex)
       {
         ex.printStackTrace();
       }
@@ -540,63 +886,81 @@ public class FeatureSettings
     {
       Boolean value = (Boolean) table.getValueAt(i, 2);
 
-      table.setValueAt(
-          new Boolean(!value.booleanValue()),
-          i, 2);
+      table.setValueAt(new Boolean(!value.booleanValue()), i, 2);
     }
   }
-  public void orderByAvWidth() {
-    if (table==null || table.getModel()==null)
+
+  public void orderByAvWidth()
+  {
+    if (table == null || table.getModel() == null)
+    {
       return;
+    }
     Object[][] data = ((FeatureTableModel) table.getModel()).getData();
     float[] width = new float[data.length];
     float[] awidth;
-    float max=0;
-    int num=0;
-    for (int i=0;i<data.length;i++) {
-       awidth = (float[]) typeWidth.get(data[i][0]);
-       if (awidth[0]>0) {
-         width[i] = awidth[1]/awidth[0];// *awidth[0]*awidth[2]; - better weight - but have to make per sequence, too (awidth[2])
-         //if (width[i]==1) // hack to distinguish single width sequences.
-         num++;
-       } else {
-         width[i]=0;
-       }
-       if (max<width[i])
-         max=width[i];
-    }
-    boolean sort=false;
-    for (int i=0;i<width.length; i++) {
-      //awidth = (float[]) typeWidth.get(data[i][0]);
-      if (width[i]==0)
+    float max = 0;
+    int num = 0;
+    for (int i = 0; i < data.length; i++)
+    {
+      awidth = (float[]) typeWidth.get(data[i][0]);
+      if (awidth[0] > 0)
+      {
+        width[i] = awidth[1] / awidth[0];// *awidth[0]*awidth[2]; - better
+        // weight - but have to make per
+        // sequence, too (awidth[2])
+        // if (width[i]==1) // hack to distinguish single width sequences.
+        num++;
+      }
+      else
+      {
+        width[i] = 0;
+      }
+      if (max < width[i])
+      {
+        max = width[i];
+      }
+    }
+    boolean sort = false;
+    for (int i = 0; i < width.length; i++)
+    {
+      // awidth = (float[]) typeWidth.get(data[i][0]);
+      if (width[i] == 0)
       {
         width[i] = fr.getOrder(data[i][0].toString());
-        if (width[i]<0)
+        if (width[i] < 0)
         {
-          width[i] = fr.setOrder(data[i][0].toString(), i/data.length);
+          width[i] = fr.setOrder(data[i][0].toString(), i / data.length);
         }
-      } else {
-        width[i] /=max; // normalize
+      }
+      else
+      {
+        width[i] /= max; // normalize
         fr.setOrder(data[i][0].toString(), width[i]); // store for later
       }
-      if (i>0)
-        sort = sort || width[i-1]>width[i];
+      if (i > 0)
+      {
+        sort = sort || width[i - 1] > width[i];
+      }
     }
     if (sort)
+    {
       jalview.util.QuickSort.sort(width, data);
-    // update global priority order
+      // update global priority order
+    }
 
-    updateFeatureRenderer(data,false);
+    updateFeatureRenderer(data, false);
     table.repaint();
   }
+
   public void close()
   {
     try
     {
       frame.setClosed(true);
+    } catch (Exception exe)
+    {
     }
-    catch (Exception exe)
-    {}
 
   }
 
@@ -604,6 +968,7 @@ public class FeatureSettings
   {
     updateFeatureRenderer(data, true);
   }
+
   private void updateFeatureRenderer(Object[][] data, boolean visibleNew)
   {
     fr.setFeaturePriority(data, visibleNew);
@@ -611,33 +976,57 @@ public class FeatureSettings
   }
 
   int selectedRow = -1;
+
   JTabbedPane tabbedPane = new JTabbedPane();
+
   BorderLayout borderLayout1 = new BorderLayout();
+
   BorderLayout borderLayout2 = new BorderLayout();
+
   BorderLayout borderLayout3 = new BorderLayout();
+
   JPanel bigPanel = new JPanel();
+
   BorderLayout borderLayout4 = new BorderLayout();
+
   JButton invert = new JButton();
+
   JPanel buttonPanel = new JPanel();
+
   JButton cancel = new JButton();
+
   JButton ok = new JButton();
+
   JButton loadColours = new JButton();
+
   JButton saveColours = new JButton();
+
   JPanel dasButtonPanel = new JPanel();
+
   JButton fetchDAS = new JButton();
+
   JButton saveDAS = new JButton();
+
   JButton cancelDAS = new JButton();
+
   JButton optimizeOrder = new JButton();
-  JPanel transbuttons = new JPanel(new BorderLayout());
-  private void jbInit()
-      throws Exception
+
+  JButton sortByScore = new JButton();
+
+  JButton sortByDens = new JButton();
+
+  JButton help = new JButton();
+
+  JPanel transbuttons = new JPanel(new GridLayout(5, 1));
+
+  private void jbInit() throws Exception
   {
     this.setLayout(borderLayout1);
     settingsPane.setLayout(borderLayout2);
     dasSettingsPane.setLayout(borderLayout3);
     bigPanel.setLayout(borderLayout4);
-    invert.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    invert.setText("Invert Selection");
+    invert.setFont(JvSwingUtils.getLabelFont());
+    invert.setText(MessageManager.getString("label.invert_selection"));
     invert.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -645,25 +1034,78 @@ public class FeatureSettings
         invertSelection();
       }
     });
-    optimizeOrder.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    optimizeOrder.setText("Optimise Order");
-    optimizeOrder.addActionListener(new ActionListener() {
-      public void actionPerformed(ActionEvent e) {
+    optimizeOrder.setFont(JvSwingUtils.getLabelFont());
+    optimizeOrder.setText(MessageManager.getString("label.optimise_order"));
+    optimizeOrder.addActionListener(new ActionListener()
+    {
+      public void actionPerformed(ActionEvent e)
+      {
         orderByAvWidth();
       }
     });
-    cancel.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    cancel.setText("Cancel");
+    sortByScore.setFont(JvSwingUtils.getLabelFont());
+    sortByScore
+            .setText(MessageManager.getString("label.seq_sort_by_score"));
+    sortByScore.addActionListener(new ActionListener()
+    {
+      public void actionPerformed(ActionEvent e)
+      {
+        af.avc.sortAlignmentByFeatureScore(null);
+      }
+    });
+    sortByDens.setFont(JvSwingUtils.getLabelFont());
+    sortByDens.setText(MessageManager
+            .getString("label.sequence_sort_by_density"));
+    sortByDens.addActionListener(new ActionListener()
+    {
+      public void actionPerformed(ActionEvent e)
+      {
+        af.avc.sortAlignmentByFeatureDensity(null);
+      }
+    });
+    help.setFont(JvSwingUtils.getLabelFont());
+    help.setText(MessageManager.getString("action.help"));
+    help.addActionListener(new ActionListener()
+    {
+      public void actionPerformed(ActionEvent e)
+      {
+        try
+        {
+          Help.showHelpWindow(HelpId.SequenceFeatureSettings);
+        } catch (HelpSetException e1)
+        {
+          e1.printStackTrace();
+        }
+      }
+    });
+    help.setFont(JvSwingUtils.getLabelFont());
+    help.setText(MessageManager.getString("action.help"));
+    help.addActionListener(new ActionListener()
+    {
+      public void actionPerformed(ActionEvent e)
+      {
+        try
+        {
+          Help.showHelpWindow(HelpId.SequenceFeatureSettings);
+        } catch (HelpSetException e1)
+        {
+          e1.printStackTrace();
+        }
+      }
+    });
+    cancel.setFont(JvSwingUtils.getLabelFont());
+    cancel.setText(MessageManager.getString("action.cancel"));
     cancel.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
       {
+        fr.setTransparency(originalTransparency);
         updateFeatureRenderer(originalData);
         close();
       }
     });
-    ok.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    ok.setText("OK");
+    ok.setFont(JvSwingUtils.getLabelFont());
+    ok.setText(MessageManager.getString("action.ok"));
     ok.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -671,8 +1113,8 @@ public class FeatureSettings
         close();
       }
     });
-    loadColours.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    loadColours.setText("Load Colours");
+    loadColours.setFont(JvSwingUtils.getLabelFont());
+    loadColours.setText(MessageManager.getString("label.load_colours"));
     loadColours.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -680,8 +1122,8 @@ public class FeatureSettings
         load();
       }
     });
-    saveColours.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    saveColours.setText("Save Colours");
+    saveColours.setFont(JvSwingUtils.getLabelFont());
+    saveColours.setText(MessageManager.getString("label.save_colours"));
     saveColours.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -693,13 +1135,15 @@ public class FeatureSettings
     {
       public void stateChanged(ChangeEvent evt)
       {
-        fr.setTransparency( (float) (100 - transparency.getValue()) / 100f);
+        fr.setTransparency((100 - transparency.getValue()) / 100f);
         af.alignPanel.paintAlignment(true);
       }
     });
 
     transparency.setMaximum(70);
-    fetchDAS.setText("Fetch DAS Features");
+    transparency.setToolTipText(MessageManager
+            .getString("label.transparency_tip"));
+    fetchDAS.setText(MessageManager.getString("label.fetch_das_features"));
     fetchDAS.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -707,7 +1151,7 @@ public class FeatureSettings
         fetchDAS_actionPerformed(e);
       }
     });
-    saveDAS.setText("Save as default");
+    saveDAS.setText(MessageManager.getString("action.save_as_default"));
     saveDAS.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -718,7 +1162,7 @@ public class FeatureSettings
     dasButtonPanel.setBorder(BorderFactory.createEtchedBorder());
     dasSettingsPane.setBorder(null);
     cancelDAS.setEnabled(false);
-    cancelDAS.setText("Cancel Fetch");
+    cancelDAS.setText(MessageManager.getString("action.cancel_fetch"));
     cancelDAS.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent e)
@@ -727,12 +1171,19 @@ public class FeatureSettings
       }
     });
     this.add(tabbedPane, java.awt.BorderLayout.CENTER);
-    tabbedPane.addTab("Feature Settings", settingsPane);
-    tabbedPane.addTab("DAS Settings", dasSettingsPane);
+    tabbedPane.addTab(MessageManager.getString("label.feature_settings"),
+            settingsPane);
+    tabbedPane.addTab(MessageManager.getString("label.das_settings"),
+            dasSettingsPane);
     bigPanel.add(transPanel, java.awt.BorderLayout.SOUTH);
+    transbuttons.add(optimizeOrder);
+    transbuttons.add(invert);
+    transbuttons.add(sortByScore);
+    transbuttons.add(sortByDens);
+    transbuttons.add(help);
+    JPanel sliderPanel = new JPanel();
+    sliderPanel.add(transparency);
     transPanel.add(transparency);
-    transbuttons.add(invert, java.awt.BorderLayout.NORTH);
-    transbuttons.add(optimizeOrder,java.awt.BorderLayout.SOUTH);
     transPanel.add(transbuttons);
     buttonPanel.add(ok);
     buttonPanel.add(cancel);
@@ -751,24 +1202,35 @@ public class FeatureSettings
   {
     fetchDAS.setEnabled(false);
     cancelDAS.setEnabled(true);
+    dassourceBrowser.setGuiEnabled(false);
     Vector selectedSources = dassourceBrowser.getSelectedSources();
+    doDasFeatureFetch(selectedSources, true, true);
+  }
 
+  /**
+   * get the features from selectedSources for all or the current selection
+   * 
+   * @param selectedSources
+   * @param checkDbRefs
+   * @param promptFetchDbRefs
+   */
+  private void doDasFeatureFetch(List<jalviewSourceI> selectedSources,
+          boolean checkDbRefs, boolean promptFetchDbRefs)
+  {
     SequenceI[] dataset, seqs;
     int iSize;
-
-    if (af.getViewport().getSelectionGroup() != null
-        && af.getViewport().getSelectionGroup().getSize() > 0)
+    AlignmentViewport vp = af.getViewport();
+    if (vp.getSelectionGroup() != null
+            && vp.getSelectionGroup().getSize() > 0)
     {
-      iSize = af.getViewport().getSelectionGroup().getSize();
+      iSize = vp.getSelectionGroup().getSize();
       dataset = new SequenceI[iSize];
-      seqs = af.getViewport().getSelectionGroup().
-          getSequencesInOrder(
-              af.getViewport().getAlignment());
+      seqs = vp.getSelectionGroup().getSequencesInOrder(vp.getAlignment());
     }
     else
     {
-      iSize = af.getViewport().getAlignment().getHeight();
-      seqs = af.getViewport().getAlignment().getSequencesArray();
+      iSize = vp.getAlignment().getHeight();
+      seqs = vp.getAlignment().getSequencesArray();
     }
 
     dataset = new SequenceI[iSize];
@@ -777,59 +1239,140 @@ public class FeatureSettings
       dataset[i] = seqs[i].getDatasetSequence();
     }
 
-    dasFeatureFetcher =
-        new jalview.ws.DasSequenceFeatureFetcher(
-            dataset,
-            this,
-            selectedSources);
     cancelDAS.setEnabled(true);
+    dasFeatureFetcher = new jalview.ws.DasSequenceFeatureFetcher(dataset,
+            this, selectedSources, checkDbRefs, promptFetchDbRefs);
     af.getViewport().setShowSequenceFeatures(true);
     af.showSeqFeatures.setSelected(true);
   }
 
+  /**
+   * blocking call to initialise the das source browser
+   */
+  public void initDasSources()
+  {
+    dassourceBrowser.initDasSources();
+  }
+
+  /**
+   * examine the current list of das sources and return any matching the given
+   * nicknames in sources
+   * 
+   * @param sources
+   *          Vector of Strings to resolve to DAS source nicknames.
+   * @return sources that are present in source list.
+   */
+  public List<jalviewSourceI> resolveSourceNicknames(Vector sources)
+  {
+    return dassourceBrowser.sourceRegistry.resolveSourceNicknames(sources);
+  }
+
+  /**
+   * get currently selected das sources. ensure you have called initDasSources
+   * before calling this.
+   * 
+   * @return vector of selected das source nicknames
+   */
+  public Vector getSelectedSources()
+  {
+    return dassourceBrowser.getSelectedSources();
+  }
+
+  /**
+   * properly initialise DAS fetcher and then initiate a new thread to fetch
+   * features from the named sources (rather than any turned on by default)
+   * 
+   * @param sources
+   * @param block
+   *          if true then runs in same thread, otherwise passes to the Swing
+   *          executor
+   */
+  public void fetchDasFeatures(Vector sources, boolean block)
+  {
+    initDasSources();
+    List<jalviewSourceI> resolved = dassourceBrowser.sourceRegistry
+            .resolveSourceNicknames(sources);
+    if (resolved.size() == 0)
+    {
+      resolved = dassourceBrowser.getSelectedSources();
+    }
+    if (resolved.size() > 0)
+    {
+      final List<jalviewSourceI> dassources = resolved;
+      fetchDAS.setEnabled(false);
+      // cancelDAS.setEnabled(true); doDasFetch does this.
+      Runnable fetcher = new Runnable()
+      {
+
+        public void run()
+        {
+          doDasFeatureFetch(dassources, true, false);
+
+        }
+      };
+      if (block)
+      {
+        fetcher.run();
+      }
+      else
+      {
+        SwingUtilities.invokeLater(fetcher);
+      }
+    }
+  }
+
   public void saveDAS_actionPerformed(ActionEvent e)
   {
-    dassourceBrowser.saveProperties(jalview.bin.Cache.applicationProperties);
+    dassourceBrowser
+            .saveProperties(jalview.bin.Cache.applicationProperties);
   }
 
   public void complete()
   {
     fetchDAS.setEnabled(true);
     cancelDAS.setEnabled(false);
+    dassourceBrowser.setGuiEnabled(true);
+
   }
 
   public void cancelDAS_actionPerformed(ActionEvent e)
   {
-    dasFeatureFetcher.cancel();
-    fetchDAS.setEnabled(true);
-    cancelDAS.setEnabled(false);
+    if (dasFeatureFetcher != null)
+    {
+      dasFeatureFetcher.cancel();
+    }
+    complete();
   }
+
   public void noDasSourceActive()
   {
-    JOptionPane.showInternalConfirmDialog(Desktop.desktop,
-            "No das sources were selected.\n"
-            + "Please select some sources and\n"
-            +" try again.",
-            "No Sources Selected",
-            JOptionPane.DEFAULT_OPTION,
-            JOptionPane.INFORMATION_MESSAGE);
     complete();
+    JOptionPane
+            .showInternalConfirmDialog(
+                    Desktop.desktop,
+                    MessageManager
+                            .getString("label.no_das_sources_selected_warn"),
+                    MessageManager
+                            .getString("label.no_das_sources_selected_title"),
+                    JOptionPane.DEFAULT_OPTION,
+                    JOptionPane.INFORMATION_MESSAGE);
   }
 
-  /////////////////////////////////////////////////////////////////////////
+  // ///////////////////////////////////////////////////////////////////////
   // http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
-  /////////////////////////////////////////////////////////////////////////
-  class FeatureTableModel
-      extends AbstractTableModel
+  // ///////////////////////////////////////////////////////////////////////
+  class FeatureTableModel extends AbstractTableModel
   {
     FeatureTableModel(Object[][] data)
     {
       this.data = data;
     }
 
-    private String[] columnNames =
-        {
-        "Feature Type", "Colour", "Display"};
+    private String[] columnNames = {
+        MessageManager.getString("label.feature_type"),
+        MessageManager.getString("action.colour"),
+        MessageManager.getString("label.display") };
+
     private Object[][] data;
 
     public Object[][] getData()
@@ -886,31 +1429,58 @@ public class FeatureSettings
 
   }
 
-  class ColorRenderer
-      extends JLabel implements TableCellRenderer
+  class ColorRenderer extends JLabel implements TableCellRenderer
   {
     javax.swing.border.Border unselectedBorder = null;
+
     javax.swing.border.Border selectedBorder = null;
 
+    final String baseTT = "Click to edit, right/apple click for menu.";
+
     public ColorRenderer()
     {
-      setOpaque(true); //MUST do this for background to show up.
+      setOpaque(true); // MUST do this for background to show up.
+      setHorizontalTextPosition(SwingConstants.CENTER);
+      setVerticalTextPosition(SwingConstants.CENTER);
     }
 
-    public Component getTableCellRendererComponent(
-        JTable table, Object color,
-        boolean isSelected, boolean hasFocus,
-        int row, int column)
+    public Component getTableCellRendererComponent(JTable table,
+            Object color, boolean isSelected, boolean hasFocus, int row,
+            int column)
     {
-      Color newColor = (Color) color;
-      setBackground(newColor);
+      // JLabel comp = new JLabel();
+      // comp.
+      setOpaque(true);
+      // comp.
+      // setBounds(getBounds());
+      Color newColor;
+      setToolTipText(baseTT);
+      setBackground(table.getBackground());
+      if (color instanceof GraduatedColor)
+      {
+        Rectangle cr = table.getCellRect(row, column, false);
+        FeatureSettings.renderGraduatedColor(this, (GraduatedColor) color,
+                (int) cr.getWidth(), (int) cr.getHeight());
+
+      }
+      else
+      {
+        this.setText("");
+        this.setIcon(null);
+        newColor = (Color) color;
+        // comp.
+        setBackground(newColor);
+        // comp.setToolTipText("RGB value: " + newColor.getRed() + ", "
+        // + newColor.getGreen() + ", " + newColor.getBlue());
+      }
       if (isSelected)
       {
         if (selectedBorder == null)
         {
           selectedBorder = BorderFactory.createMatteBorder(2, 5, 2, 5,
-              table.getSelectionBackground());
+                  table.getSelectionBackground());
         }
+        // comp.
         setBorder(selectedBorder);
       }
       else
@@ -918,89 +1488,298 @@ public class FeatureSettings
         if (unselectedBorder == null)
         {
           unselectedBorder = BorderFactory.createMatteBorder(2, 5, 2, 5,
-              table.getBackground());
+                  table.getBackground());
         }
+        // comp.
         setBorder(unselectedBorder);
       }
 
-      setToolTipText("RGB value: " + newColor.getRed() + ", "
-                     + newColor.getGreen() + ", "
-                     + newColor.getBlue());
       return this;
     }
   }
 
+  /**
+   * update comp using rendering settings from gcol
+   * 
+   * @param comp
+   * @param gcol
+   */
+  public static void renderGraduatedColor(JLabel comp, GraduatedColor gcol)
+  {
+    int w = comp.getWidth(), h = comp.getHeight();
+    if (w < 20)
+    {
+      w = (int) comp.getPreferredSize().getWidth();
+      h = (int) comp.getPreferredSize().getHeight();
+      if (w < 20)
+      {
+        w = 80;
+        h = 12;
+      }
+    }
+    renderGraduatedColor(comp, gcol, w, h);
+  }
+
+  public static void renderGraduatedColor(JLabel comp, GraduatedColor gcol,
+          int w, int h)
+  {
+    boolean thr = false;
+    String tt = "";
+    String tx = "";
+    if (gcol.getThreshType() == AnnotationColourGradient.ABOVE_THRESHOLD)
+    {
+      thr = true;
+      tx += ">";
+      tt += "Thresholded (Above " + gcol.getThresh() + ") ";
+    }
+    if (gcol.getThreshType() == AnnotationColourGradient.BELOW_THRESHOLD)
+    {
+      thr = true;
+      tx += "<";
+      tt += "Thresholded (Below " + gcol.getThresh() + ") ";
+    }
+    if (gcol.isColourByLabel())
+    {
+      tt = "Coloured by label text. " + tt;
+      if (thr)
+      {
+        tx += " ";
+      }
+      tx += "Label";
+      comp.setIcon(null);
+    }
+    else
+    {
+      Color newColor = gcol.getMaxColor();
+      comp.setBackground(newColor);
+      // System.err.println("Width is " + w / 2);
+      Icon ficon = new FeatureIcon(gcol, comp.getBackground(), w, h, thr);
+      comp.setIcon(ficon);
+      // tt+="RGB value: Max (" + newColor.getRed() + ", "
+      // + newColor.getGreen() + ", " + newColor.getBlue()
+      // + ")\nMin (" + minCol.getRed() + ", " + minCol.getGreen()
+      // + ", " + minCol.getBlue() + ")");
+    }
+    comp.setHorizontalAlignment(SwingConstants.CENTER);
+    comp.setText(tx);
+    if (tt.length() > 0)
+    {
+      if (comp.getToolTipText() == null)
+      {
+        comp.setToolTipText(tt);
+      }
+      else
+      {
+        comp.setToolTipText(tt + " " + comp.getToolTipText());
+      }
+    }
+  }
 }
 
-class ColorEditor
-    extends AbstractCellEditor implements TableCellEditor,
-    ActionListener
+class FeatureIcon implements Icon
 {
+  GraduatedColor gcol;
+
+  Color backg;
+
+  boolean midspace = false;
+
+  int width = 50, height = 20;
+
+  int s1, e1; // start and end of midpoint band for thresholded symbol
+
+  Color mpcolour = Color.white;
+
+  FeatureIcon(GraduatedColor gfc, Color bg, int w, int h, boolean mspace)
+  {
+    gcol = gfc;
+    backg = bg;
+    width = w;
+    height = h;
+    midspace = mspace;
+    if (midspace)
+    {
+      s1 = width / 3;
+      e1 = s1 * 2;
+    }
+    else
+    {
+      s1 = width / 2;
+      e1 = s1;
+    }
+  }
+
+  public int getIconWidth()
+  {
+    return width;
+  }
+
+  public int getIconHeight()
+  {
+    return height;
+  }
+
+  public void paintIcon(Component c, Graphics g, int x, int y)
+  {
+
+    if (gcol.isColourByLabel())
+    {
+      g.setColor(backg);
+      g.fillRect(0, 0, width, height);
+      // need an icon here.
+      g.setColor(gcol.getMaxColor());
+
+      g.setFont(new Font("Verdana", Font.PLAIN, 9));
+
+      // g.setFont(g.getFont().deriveFont(
+      // AffineTransform.getScaleInstance(
+      // width/g.getFontMetrics().stringWidth("Label"),
+      // height/g.getFontMetrics().getHeight())));
+
+      g.drawString(MessageManager.getString("label.label"), 0, 0);
+
+    }
+    else
+    {
+      Color minCol = gcol.getMinColor();
+      g.setColor(minCol);
+      g.fillRect(0, 0, s1, height);
+      if (midspace)
+      {
+        g.setColor(Color.white);
+        g.fillRect(s1, 0, e1 - s1, height);
+      }
+      g.setColor(gcol.getMaxColor());
+      g.fillRect(0, e1, width - e1, height);
+    }
+  }
+}
+
+class ColorEditor extends AbstractCellEditor implements TableCellEditor,
+        ActionListener
+{
+  FeatureSettings me;
+
+  GraduatedColor currentGColor;
+
+  FeatureColourChooser chooser;
+
+  String type;
+
   Color currentColor;
+
   JButton button;
+
   JColorChooser colorChooser;
+
   JDialog dialog;
+
   protected static final String EDIT = "edit";
 
-  public ColorEditor()
+  int selectedRow = 0;
+
+  public ColorEditor(FeatureSettings me)
   {
-    //Set up the editor (from the table's point of view),
-    //which is a button.
-    //This button brings up the color chooser dialog,
-    //which is the editor from the user's point of view.
+    this.me = me;
+    // Set up the editor (from the table's point of view),
+    // which is a button.
+    // This button brings up the color chooser dialog,
+    // which is the editor from the user's point of view.
     button = new JButton();
     button.setActionCommand(EDIT);
     button.addActionListener(this);
     button.setBorderPainted(false);
-    //Set up the dialog that the button brings up.
+    // Set up the dialog that the button brings up.
     colorChooser = new JColorChooser();
-    dialog = JColorChooser.createDialog(button,
-                                        "Select new Colour",
-                                        true, //modal
-                                        colorChooser,
-                                        this, //OK button handler
-                                        null); //no CANCEL button handler
+    dialog = JColorChooser.createDialog(button, "Select new Colour", true, // modal
+            colorChooser, this, // OK button handler
+            null); // no CANCEL button handler
   }
 
   /**
-   * Handles events from the editor button and from
-   * the dialog's OK button.
+   * Handles events from the editor button and from the dialog's OK button.
    */
   public void actionPerformed(ActionEvent e)
   {
 
     if (EDIT.equals(e.getActionCommand()))
     {
-      //The user has clicked the cell, so
-      //bring up the dialog.
-      button.setBackground(currentColor);
-      colorChooser.setColor(currentColor);
-      dialog.setVisible(true);
-
-      //Make the renderer reappear.
+      // The user has clicked the cell, so
+      // bring up the dialog.
+      if (currentColor != null)
+      {
+        // bring up simple color chooser
+        button.setBackground(currentColor);
+        colorChooser.setColor(currentColor);
+        dialog.setVisible(true);
+      }
+      else
+      {
+        // bring up graduated chooser.
+        chooser = new FeatureColourChooser(me.fr, type);
+        chooser.setRequestFocusEnabled(true);
+        chooser.requestFocus();
+        chooser.addActionListener(this);
+      }
+      // Make the renderer reappear.
       fireEditingStopped();
 
     }
     else
-    { //User pressed dialog's "OK" button.
-      currentColor = colorChooser.getColor();
+    { // User pressed dialog's "OK" button.
+      if (currentColor != null)
+      {
+        currentColor = colorChooser.getColor();
+      }
+      else
+      {
+        // class cast exceptions may be raised if the chooser created on a
+        // non-graduated color
+        currentGColor = (GraduatedColor) chooser.getLastColour();
+      }
+      me.table.setValueAt(getCellEditorValue(), selectedRow, 1);
+      fireEditingStopped();
+      me.table.validate();
     }
   }
 
-  //Implement the one CellEditor method that AbstractCellEditor doesn't.
+  // Implement the one CellEditor method that AbstractCellEditor doesn't.
   public Object getCellEditorValue()
   {
+    if (currentColor == null)
+    {
+      return currentGColor;
+    }
     return currentColor;
   }
 
-  //Implement the one method defined by TableCellEditor.
-  public Component getTableCellEditorComponent(JTable table,
-                                               Object value,
-                                               boolean isSelected,
-                                               int row,
-                                               int column)
+  // Implement the one method defined by TableCellEditor.
+  public Component getTableCellEditorComponent(JTable table, Object value,
+          boolean isSelected, int row, int column)
   {
-    currentColor = (Color) value;
+    currentGColor = null;
+    currentColor = null;
+    this.selectedRow = row;
+    type = me.table.getValueAt(row, 0).toString();
+    button.setOpaque(true);
+    button.setBackground(me.getBackground());
+    if (value instanceof GraduatedColor)
+    {
+      currentGColor = (GraduatedColor) value;
+      JLabel btn = new JLabel();
+      btn.setSize(button.getSize());
+      FeatureSettings.renderGraduatedColor(btn, currentGColor);
+      button.setBackground(btn.getBackground());
+      button.setIcon(btn.getIcon());
+      button.setText(btn.getText());
+    }
+    else
+    {
+      button.setText("");
+      button.setIcon(null);
+      currentColor = (Color) value;
+      button.setBackground(currentColor);
+    }
     return button;
   }
 }