JAL-2810 JAL-2886 i18n
[jalview.git] / src / jalview / jbgui / GStructureChooser.java
index d0f2328..9bcaa5a 100644 (file)
 package jalview.jbgui;
 
 import jalview.datamodel.SequenceI;
+import jalview.fts.api.FTSDataColumnI;
+import jalview.fts.core.FTSDataColumnPreferences;
+import jalview.fts.core.FTSDataColumnPreferences.PreferenceSource;
+import jalview.fts.service.pdb.PDBFTSRestClient;
 import jalview.gui.AlignmentPanel;
 import jalview.gui.Desktop;
-import jalview.jbgui.PDBDocFieldPreferences.PreferenceSource;
+import jalview.gui.JvSwingUtils;
 import jalview.util.MessageManager;
 
 import java.awt.BorderLayout;
 import java.awt.CardLayout;
+import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.FlowLayout;
+import java.awt.GridLayout;
 import java.awt.event.ActionEvent;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
 
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
@@ -44,34 +55,46 @@ import javax.swing.JComboBox;
 import javax.swing.JFrame;
 import javax.swing.JInternalFrame;
 import javax.swing.JLabel;
+import javax.swing.JList;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
+import javax.swing.JSeparator;
 import javax.swing.JTabbedPane;
 import javax.swing.JTable;
 import javax.swing.JTextField;
+import javax.swing.ListCellRenderer;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
+import javax.swing.event.InternalFrameEvent;
+import javax.swing.table.TableColumn;
 
 @SuppressWarnings("serial")
 /**
- * GUI layout for structure chooser 
+ * GUI layout for structure chooser
+ * 
  * @author tcnofoegbu
  *
  */
-public abstract class GStructureChooser extends JPanel implements
-        ItemListener
+public abstract class GStructureChooser extends JPanel
+        implements ItemListener
 {
+  protected JPanel statusPanel = new JPanel();
+
+  public JLabel statusBar = new JLabel();
+
+  private JPanel pnl_actionsAndStatus = new JPanel(new BorderLayout());
+
   protected String frameTitle = MessageManager
           .getString("label.structure_chooser");
 
   protected JInternalFrame mainFrame = new JInternalFrame(frameTitle);
 
-  protected JComboBox<FilterOption> cmb_filterOption = new JComboBox<FilterOption>();
+  protected JComboBox<FilterOption> cmb_filterOption = new JComboBox<>();
 
   protected AlignmentPanel ap;
-  
+
   protected StringBuilder errorWarning = new StringBuilder();
 
   protected JLabel lbl_result = new JLabel(
@@ -112,17 +135,17 @@ public abstract class GStructureChooser extends JPanel implements
   protected JCheckBox chk_invertFilter = new JCheckBox(
           MessageManager.getString("label.invert"));
 
-  protected ImageIcon loadingImage = new ImageIcon(getClass().getResource(
-          "/images/loading.gif"));
+  protected ImageIcon loadingImage = new ImageIcon(
+          getClass().getResource("/images/loading.gif"));
 
-  protected ImageIcon goodImage = new ImageIcon(getClass().getResource(
-          "/images/good.png"));
+  protected ImageIcon goodImage = new ImageIcon(
+          getClass().getResource("/images/good.png"));
 
-  protected ImageIcon errorImage = new ImageIcon(getClass().getResource(
-          "/images/error.png"));
+  protected ImageIcon errorImage = new ImageIcon(
+          getClass().getResource("/images/error.png"));
 
-  protected ImageIcon warningImage = new ImageIcon(getClass().getResource(
-          "/images/warning.gif"));
+  protected ImageIcon warningImage = new ImageIcon(
+          getClass().getResource("/images/warning.gif"));
 
   protected JLabel lbl_warning = new JLabel(warningImage);
 
@@ -132,7 +155,6 @@ public abstract class GStructureChooser extends JPanel implements
 
   protected JLabel lbl_fromFileStatus = new JLabel(errorImage);
 
-
   protected AssciateSeqPanel idInputAssSeqPanel = new AssciateSeqPanel();
 
   protected AssciateSeqPanel fileChooserAssSeqPanel = new AssciateSeqPanel();
@@ -143,21 +165,104 @@ public abstract class GStructureChooser extends JPanel implements
 
   protected static final String VIEWS_ENTER_ID = "VIEWS_ENTER_ID";
 
+  /**
+   * 'cached' structure view
+   */
   protected static final String VIEWS_LOCAL_PDB = "VIEWS_LOCAL_PDB";
 
-  protected JTable tbl_summary = new JTable();
-
-  protected JScrollPane scrl_foundStructures = new JScrollPane(
-          tbl_summary);
-
   protected JTable tbl_local_pdb = new JTable();
 
   protected JScrollPane scrl_localPDB = new JScrollPane(tbl_local_pdb);
 
-  private JTabbedPane pnl_filter = new JTabbedPane();
+  protected JTabbedPane pnl_filter = new JTabbedPane();
+
+  protected FTSDataColumnPreferences pdbDocFieldPrefs = new FTSDataColumnPreferences(
+          PreferenceSource.STRUCTURE_CHOOSER,
+          PDBFTSRestClient.getInstance());
+
+  protected FTSDataColumnI[] previousWantedFields;
+
+  protected static Map<String, Integer> tempUserPrefs = new HashMap<>();
+
+  private JTable tbl_summary = new JTable()
+  {
+    private boolean inLayout;
+
+    @Override
+    public boolean getScrollableTracksViewportWidth()
+    {
+      return hasExcessWidth();
+
+    }
+
+    @Override
+    public void doLayout()
+    {
+      if (hasExcessWidth())
+      {
+        autoResizeMode = AUTO_RESIZE_SUBSEQUENT_COLUMNS;
+      }
+      inLayout = true;
+      super.doLayout();
+      inLayout = false;
+      autoResizeMode = AUTO_RESIZE_OFF;
+    }
 
-  private PDBDocFieldPreferences pdbDocFieldPrefs = new PDBDocFieldPreferences(
-          PreferenceSource.STRUCTURE_CHOOSER);
+    protected boolean hasExcessWidth()
+    {
+      return getPreferredSize().width < getParent().getWidth();
+    }
+
+    @Override
+    public void columnMarginChanged(ChangeEvent e)
+    {
+      if (isEditing())
+      {
+        removeEditor();
+      }
+      TableColumn resizingColumn = getTableHeader().getResizingColumn();
+      // Need to do this here, before the parent's
+      // layout manager calls getPreferredSize().
+      if (resizingColumn != null && autoResizeMode == AUTO_RESIZE_OFF
+              && !inLayout)
+      {
+        resizingColumn.setPreferredWidth(resizingColumn.getWidth());
+        String colHeader = resizingColumn.getHeaderValue().toString();
+        tempUserPrefs.put(colHeader, resizingColumn.getWidth());
+      }
+      resizeAndRepaint();
+    }
+
+    @Override
+    public String getToolTipText(MouseEvent evt)
+    {
+      String toolTipText = null;
+      java.awt.Point pnt = evt.getPoint();
+      int rowIndex = rowAtPoint(pnt);
+      int colIndex = columnAtPoint(pnt);
+
+      try
+      {
+        if (getValueAt(rowIndex, colIndex) == null)
+        {
+          return null;
+        }
+        toolTipText = getValueAt(rowIndex, colIndex).toString();
+      } catch (Exception e)
+      {
+        // e.printStackTrace();
+      }
+      toolTipText = (toolTipText == null ? null
+              : (toolTipText.length() > 500
+                      ? JvSwingUtils.wrapTooltip(true,
+                              "\"" + toolTipText.subSequence(0, 500)
+                                      + "...\"")
+                      : JvSwingUtils.wrapTooltip(true, toolTipText)));
+      return toolTipText;
+    }
+  };
+
+  protected JScrollPane scrl_foundStructures = new JScrollPane(tbl_summary);
 
   public GStructureChooser()
   {
@@ -180,37 +285,158 @@ public abstract class GStructureChooser extends JPanel implements
    */
   private void jbInit() throws Exception
   {
+    Integer width = tempUserPrefs.get("structureChooser.width") == null
+            ? 800
+            : tempUserPrefs.get("structureChooser.width");
+    Integer height = tempUserPrefs.get("structureChooser.height") == null
+            ? 400
+            : tempUserPrefs.get("structureChooser.height");
     tbl_summary.setAutoCreateRowSorter(true);
+    tbl_summary.getTableHeader().setReorderingAllowed(false);
+    tbl_summary.addMouseListener(new MouseAdapter()
+    {
+      @Override
+      public void mouseClicked(MouseEvent e)
+      {
+        validateSelections();
+      }
+
+      @Override
+      public void mouseReleased(MouseEvent e)
+      {
+        validateSelections();
+      }
+    });
+    tbl_summary.addKeyListener(new KeyAdapter()
+    {
+      @Override
+      public void keyPressed(KeyEvent evt)
+      {
+        validateSelections();
+        switch (evt.getKeyCode())
+        {
+        case KeyEvent.VK_ESCAPE: // escape key
+          mainFrame.dispose();
+          break;
+        case KeyEvent.VK_ENTER: // enter key
+          if (btn_view.isEnabled())
+          {
+            ok_ActionPerformed();
+          }
+          break;
+        case KeyEvent.VK_TAB: // tab key
+          if (evt.isShiftDown())
+          {
+            pnl_filter.requestFocus();
+          }
+          else
+          {
+            btn_view.requestFocus();
+          }
+          evt.consume();
+          break;
+        default:
+          return;
+        }
+      }
+    });
     tbl_local_pdb.setAutoCreateRowSorter(true);
+    tbl_local_pdb.getTableHeader().setReorderingAllowed(false);
     tbl_local_pdb.addMouseListener(new MouseAdapter()
     {
+      @Override
       public void mouseClicked(MouseEvent e)
       {
-        updateCurrentView();
+        validateSelections();
       }
 
+      @Override
       public void mouseReleased(MouseEvent e)
       {
-        updateCurrentView();
+        validateSelections();
+      }
+    });
+    tbl_local_pdb.addKeyListener(new KeyAdapter()
+    {
+      @Override
+      public void keyPressed(KeyEvent evt)
+      {
+        validateSelections();
+        switch (evt.getKeyCode())
+        {
+        case KeyEvent.VK_ESCAPE: // escape key
+          mainFrame.dispose();
+          break;
+        case KeyEvent.VK_ENTER: // enter key
+          if (btn_view.isEnabled())
+          {
+            ok_ActionPerformed();
+          }
+          break;
+        case KeyEvent.VK_TAB: // tab key
+          if (evt.isShiftDown())
+          {
+            cmb_filterOption.requestFocus();
+          }
+          else
+          {
+            if (btn_view.isEnabled())
+            {
+              btn_view.requestFocus();
+            }
+            else
+            {
+              btn_cancel.requestFocus();
+            }
+          }
+          evt.consume();
+          break;
+        default:
+          return;
+        }
       }
     });
-
     btn_view.setFont(new java.awt.Font("Verdana", 0, 12));
     btn_view.setText(MessageManager.getString("action.view"));
     btn_view.addActionListener(new java.awt.event.ActionListener()
     {
+      @Override
       public void actionPerformed(ActionEvent e)
       {
         ok_ActionPerformed();
       }
     });
+    btn_view.addKeyListener(new KeyAdapter()
+    {
+      @Override
+      public void keyPressed(KeyEvent evt)
+      {
+        if (evt.getKeyCode() == KeyEvent.VK_ENTER)
+        {
+          ok_ActionPerformed();
+        }
+      }
+    });
+
     btn_cancel.setFont(new java.awt.Font("Verdana", 0, 12));
     btn_cancel.setText(MessageManager.getString("action.cancel"));
     btn_cancel.addActionListener(new java.awt.event.ActionListener()
     {
+      @Override
       public void actionPerformed(ActionEvent e)
       {
-        mainFrame.dispose();
+        closeAction(pnl_filter.getHeight());
+      }
+    });
+    btn_cancel.addKeyListener(new KeyAdapter()
+    {
+      @Override
+      public void keyPressed(KeyEvent evt)
+      {
+        if (evt.getKeyCode() == KeyEvent.VK_ENTER)
+        {
+          closeAction(pnl_filter.getHeight());
+        }
       }
     });
 
@@ -219,29 +445,38 @@ public abstract class GStructureChooser extends JPanel implements
     btn_pdbFromFile.setText(btn_title + "              ");
     btn_pdbFromFile.addActionListener(new java.awt.event.ActionListener()
     {
+      @Override
       public void actionPerformed(ActionEvent e)
       {
         pdbFromFile_actionPerformed();
       }
     });
+    btn_pdbFromFile.addKeyListener(new KeyAdapter()
+    {
+      @Override
+      public void keyPressed(KeyEvent evt)
+      {
+        if (evt.getKeyCode() == KeyEvent.VK_ENTER)
+        {
+          pdbFromFile_actionPerformed();
+        }
+      }
+    });
 
-    scrl_foundStructures.setPreferredSize(new Dimension(500, 300));
-    scrl_foundStructures
-            .setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+    scrl_foundStructures.setPreferredSize(new Dimension(width, height));
 
-    scrl_localPDB.setPreferredSize(new Dimension(500, 300));
-    scrl_localPDB
-            .setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+    scrl_localPDB.setPreferredSize(new Dimension(width, height));
+    scrl_localPDB.setHorizontalScrollBarPolicy(
+            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
 
     cmb_filterOption.setFont(new java.awt.Font("Verdana", 0, 12));
     chk_invertFilter.setFont(new java.awt.Font("Verdana", 0, 12));
     chk_rememberSettings.setFont(new java.awt.Font("Verdana", 0, 12));
-
-
-    txt_search.setToolTipText(MessageManager
-            .getString("label.enter_pdb_id"));
-    cmb_filterOption.setToolTipText(MessageManager
-            .getString("info.select_filter_option"));
+    chk_rememberSettings.setVisible(false);
+    txt_search.setToolTipText(JvSwingUtils.wrapTooltip(true,
+            MessageManager.getString("label.enter_pdb_id_tip")));
+    cmb_filterOption.setToolTipText(
+            MessageManager.getString("info.select_filter_option"));
     txt_search.getDocument().addDocumentListener(new DocumentListener()
     {
       @Override
@@ -264,6 +499,19 @@ public abstract class GStructureChooser extends JPanel implements
     });
 
     cmb_filterOption.addItemListener(this);
+
+    // add CustomComboSeparatorsRenderer to filter option combo-box
+    cmb_filterOption.setRenderer(new CustomComboSeparatorsRenderer(
+            (ListCellRenderer<Object>) cmb_filterOption.getRenderer())
+    {
+      @Override
+      protected boolean addSeparatorAfter(JList list, FilterOption value,
+              int index)
+      {
+        return value.isAddSeparatorAfter();
+      }
+    });
+
     chk_invertFilter.addItemListener(this);
 
     pnl_actions.add(chk_rememberSettings);
@@ -276,7 +524,6 @@ public abstract class GStructureChooser extends JPanel implements
     pnl_main.add(chk_invertFilter);
     lbl_loading.setVisible(false);
 
-
     pnl_fileChooser.add(btn_pdbFromFile);
     pnl_fileChooser.add(lbl_fromFileStatus);
     pnl_fileChooserBL.add(fileChooserAssSeqPanel, BorderLayout.NORTH);
@@ -286,50 +533,117 @@ public abstract class GStructureChooser extends JPanel implements
     pnl_idInput.add(lbl_pdbManualFetchStatus);
     pnl_idInputBL.add(idInputAssSeqPanel, BorderLayout.NORTH);
     pnl_idInputBL.add(pnl_idInput, BorderLayout.CENTER);
-    
+
     final String foundStructureSummary = MessageManager
             .getString("label.found_structures_summary");
-
+    final String configureCols = MessageManager
+            .getString("label.configure_displayed_columns");
     ChangeListener changeListener = new ChangeListener()
     {
+      @Override
       public void stateChanged(ChangeEvent changeEvent)
       {
         JTabbedPane sourceTabbedPane = (JTabbedPane) changeEvent
                 .getSource();
         int index = sourceTabbedPane.getSelectedIndex();
+        btn_view.setVisible(true);
+        btn_cancel.setVisible(true);
+        if (sourceTabbedPane.getTitleAt(index).equals(configureCols))
+        {
+          btn_view.setEnabled(false);
+          btn_cancel.setEnabled(false);
+          btn_view.setVisible(false);
+          btn_cancel.setVisible(false);
+          previousWantedFields = pdbDocFieldPrefs
+                  .getStructureSummaryFields()
+                  .toArray(new FTSDataColumnI[0]);
+        }
         if (sourceTabbedPane.getTitleAt(index)
                 .equals(foundStructureSummary))
         {
-          tabRefresh();
+          btn_cancel.setEnabled(true);
+          if (wantedFieldsUpdated())
+          {
+            tabRefresh();
+          }
+          else
+          {
+            validateSelections();
+          }
         }
       }
     };
     pnl_filter.addChangeListener(changeListener);
-    pnl_filter.setPreferredSize(new Dimension(500, 300));
+    pnl_filter.setPreferredSize(new Dimension(width, height));
     pnl_filter.add(foundStructureSummary, scrl_foundStructures);
-    pnl_filter.add(
-            MessageManager.getString("label.configure_displayed_columns"),
-            pdbDocFieldPrefs);
-    
+    pnl_filter.add(configureCols, pdbDocFieldPrefs);
+
     pnl_locPDB.add(scrl_localPDB);
 
     pnl_switchableViews.add(pnl_fileChooserBL, VIEWS_FROM_FILE);
     pnl_switchableViews.add(pnl_idInputBL, VIEWS_ENTER_ID);
     pnl_switchableViews.add(pnl_filter, VIEWS_FILTER);
     pnl_switchableViews.add(pnl_locPDB, VIEWS_LOCAL_PDB);
-    
+
     this.setLayout(mainLayout);
     this.add(pnl_main, java.awt.BorderLayout.NORTH);
     this.add(pnl_switchableViews, java.awt.BorderLayout.CENTER);
-    this.add(pnl_actions, java.awt.BorderLayout.SOUTH);
-
+    // this.add(pnl_actions, java.awt.BorderLayout.SOUTH);
+    statusPanel.setLayout(new GridLayout());
+    pnl_actionsAndStatus.add(pnl_actions, BorderLayout.CENTER);
+    pnl_actionsAndStatus.add(statusPanel, BorderLayout.SOUTH);
+    statusPanel.add(statusBar, null);
+    this.add(pnl_actionsAndStatus, java.awt.BorderLayout.SOUTH);
+
+    mainFrame.addInternalFrameListener(
+            new javax.swing.event.InternalFrameAdapter()
+            {
+              @Override
+              public void internalFrameClosing(InternalFrameEvent e)
+              {
+                closeAction(pnl_filter.getHeight());
+              }
+            });
     mainFrame.setVisible(true);
     mainFrame.setContentPane(this);
     mainFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
-    Desktop.addInternalFrame(mainFrame, frameTitle, 800, 400);
+    Integer x = tempUserPrefs.get("structureChooser.x");
+    Integer y = tempUserPrefs.get("structureChooser.y");
+    if (x != null && y != null)
+    {
+      mainFrame.setLocation(x, y);
+    }
+    Desktop.addInternalFrame(mainFrame, frameTitle, width, height);
+  }
+
+  protected void closeAction(int preferredHeight)
+  {
+    // System.out.println(">>>>>>>>>> closing internal frame!!!");
+    // System.out.println("width : " + mainFrame.getWidth());
+    // System.out.println("heigh : " + mainFrame.getHeight());
+    // System.out.println("x : " + mainFrame.getX());
+    // System.out.println("y : " + mainFrame.getY());
+    tempUserPrefs.put("structureChooser.width", pnl_filter.getWidth());
+    tempUserPrefs.put("structureChooser.height", preferredHeight);
+    tempUserPrefs.put("structureChooser.x", mainFrame.getX());
+    tempUserPrefs.put("structureChooser.y", mainFrame.getY());
+    mainFrame.dispose();
+  }
+
+  public boolean wantedFieldsUpdated()
+  {
+    if (previousWantedFields == null)
+    {
+      return true;
+    }
+
+    FTSDataColumnI[] currentWantedFields = pdbDocFieldPrefs
+            .getStructureSummaryFields().toArray(new FTSDataColumnI[0]);
+    return Arrays.equals(currentWantedFields, previousWantedFields) ? false
+            : true;
+
   }
 
-  
   @Override
   /**
    * Event listener for the 'filter' combo-box and 'invert' check-box
@@ -353,11 +667,28 @@ public abstract class GStructureChooser extends JPanel implements
 
     private String view;
 
-    public FilterOption(String name, String value, String view)
+    private boolean addSeparatorAfter;
+
+    /**
+     * Model for structure filter option
+     * 
+     * @param name
+     *          - the name of the Option
+     * @param value
+     *          - the value of the option
+     * @param view
+     *          - the category of the filter option
+     * @param addSeparatorAfter
+     *          - if true, a horizontal separator is rendered immediately after
+     *          this filter option, otherwise
+     */
+    public FilterOption(String name, String value, String view,
+            boolean addSeparatorAfter)
     {
       this.name = name;
       this.value = value;
       this.view = view;
+      this.addSeparatorAfter = addSeparatorAfter;
     }
 
     public String getName()
@@ -390,10 +721,21 @@ public abstract class GStructureChooser extends JPanel implements
       this.view = view;
     }
 
+    @Override
     public String toString()
     {
       return this.name;
     }
+
+    public boolean isAddSeparatorAfter()
+    {
+      return addSeparatorAfter;
+    }
+
+    public void setAddSeparatorAfter(boolean addSeparatorAfter)
+    {
+      this.addSeparatorAfter = addSeparatorAfter;
+    }
   }
 
   /**
@@ -406,13 +748,15 @@ public abstract class GStructureChooser extends JPanel implements
   public class AssociateSeqOptions
   {
     private SequenceI sequence;
+
     private String name;
 
     public AssociateSeqOptions(SequenceI seq)
     {
       this.sequence = seq;
-      this.name = (seq.getName().length() >= 23) ? seq.getName().substring(
-              0, 23) : seq.getName();
+      this.name = (seq.getName().length() >= 23)
+              ? seq.getName().substring(0, 23)
+              : seq.getName();
     }
 
     public AssociateSeqOptions(String name, SequenceI seq)
@@ -421,6 +765,7 @@ public abstract class GStructureChooser extends JPanel implements
       this.sequence = seq;
     }
 
+    @Override
     public String toString()
     {
       return name;
@@ -458,7 +803,7 @@ public abstract class GStructureChooser extends JPanel implements
    */
   public class AssciateSeqPanel extends JPanel implements ItemListener
   {
-    private JComboBox<AssociateSeqOptions> cmb_assSeq = new JComboBox<AssociateSeqOptions>();
+    private JComboBox<AssociateSeqOptions> cmb_assSeq = new JComboBox<>();
 
     private JLabel lbl_associateSeq = new JLabel();
 
@@ -467,8 +812,8 @@ public abstract class GStructureChooser extends JPanel implements
       this.setLayout(new FlowLayout());
       this.add(cmb_assSeq);
       this.add(lbl_associateSeq);
-      cmb_assSeq.setToolTipText(MessageManager
-              .getString("info.associate_wit_sequence"));
+      cmb_assSeq.setToolTipText(
+              MessageManager.getString("info.associate_wit_sequence"));
       cmb_assSeq.addItemListener(this);
     }
 
@@ -497,16 +842,64 @@ public abstract class GStructureChooser extends JPanel implements
     }
   }
 
+  public JTable getResultTable()
+  {
+    return tbl_summary;
+  }
+
   public JComboBox<FilterOption> getCmbFilterOption()
   {
     return cmb_filterOption;
   }
 
-  protected abstract void stateChanged(ItemEvent e);
+  /**
+   * Custom ListCellRenderer for adding a separator between different categories
+   * of structure chooser filter option drop-down.
+   * 
+   * @author tcnofoegbu
+   *
+   */
+  public abstract class CustomComboSeparatorsRenderer
+          implements ListCellRenderer<Object>
+  {
+    private ListCellRenderer<Object> regent;
+
+    private JPanel separatorPanel = new JPanel(new BorderLayout());
+
+    private JSeparator jSeparator = new JSeparator();
+
+    public CustomComboSeparatorsRenderer(
+            ListCellRenderer<Object> listCellRenderer)
+    {
+      this.regent = listCellRenderer;
+    }
+
+    @Override
+    public Component getListCellRendererComponent(JList list, Object value,
+            int index, boolean isSelected, boolean cellHasFocus)
+    {
+
+      Component comp = regent.getListCellRendererComponent(list, value,
+              index, isSelected, cellHasFocus);
+      if (index != -1
+              && addSeparatorAfter(list, (FilterOption) value, index))
+      {
+        separatorPanel.removeAll();
+        separatorPanel.add(comp, BorderLayout.CENTER);
+        separatorPanel.add(jSeparator, BorderLayout.SOUTH);
+        return separatorPanel;
+      }
+      else
+      {
+        return comp;
+      }
+    }
 
-  protected abstract void updateCurrentView();
+    protected abstract boolean addSeparatorAfter(JList list,
+            FilterOption value, int index);
+  }
 
-  protected abstract void populateFilterComboBox();
+  protected abstract void stateChanged(ItemEvent e);
 
   protected abstract void ok_ActionPerformed();
 
@@ -515,9 +908,12 @@ public abstract class GStructureChooser extends JPanel implements
   protected abstract void txt_search_ActionPerformed();
 
   public abstract void populateCmbAssociateSeqOptions(
-          JComboBox<AssociateSeqOptions> cmb_assSeq, JLabel lbl_associateSeq);
+          JComboBox<AssociateSeqOptions> cmb_assSeq,
+          JLabel lbl_associateSeq);
 
   public abstract void cmbAssSeqStateChanged();
 
   public abstract void tabRefresh();
-}
+
+  public abstract void validateSelections();
+}
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