X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fjbgui%2FGStructureChooser.java;fp=src%2Fjalview%2Fjbgui%2FGStructureChooser.java;h=041fefd8317e1bd6a744778462e561e628911947;hb=9b4c6a235744a840d6bf31e4fd06e644cebfa65a;hp=3a064d24ae6509665b1f7220cc8d498436a919d2;hpb=3c9453277531bea753777d624e117e550820bd08;p=jalview.git

diff --git a/src/jalview/jbgui/GStructureChooser.java b/src/jalview/jbgui/GStructureChooser.java
index 3a064d2..041fefd 100644
--- a/src/jalview/jbgui/GStructureChooser.java
+++ b/src/jalview/jbgui/GStructureChooser.java
@@ -33,6 +33,7 @@ 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;
@@ -54,11 +55,14 @@ 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;
@@ -488,6 +492,19 @@ 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);
@@ -643,11 +660,28 @@ 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()
@@ -685,6 +719,16 @@ public abstract class GStructureChooser extends JPanel implements
     {
       return this.name;
     }
+
+    public boolean isAddSeparatorAfter()
+    {
+      return addSeparatorAfter;
+    }
+
+    public void setAddSeparatorAfter(boolean addSeparatorAfter)
+    {
+      this.addSeparatorAfter = addSeparatorAfter;
+    }
   }
 
   /**
@@ -800,6 +844,54 @@ public abstract class GStructureChooser extends JPanel implements
     return cmb_filterOption;
   }
 
+  /**
+   * 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 boolean addSeparatorAfter(JList list,
+            FilterOption value,
+            int index);
+  }
+
   protected abstract void stateChanged(ItemEvent e);
 
   protected abstract void ok_ActionPerformed();
@@ -816,4 +908,4 @@ public abstract class GStructureChooser extends JPanel implements
   public abstract void tabRefresh();
 
   public abstract void validateSelections();
-}
+}
\ No newline at end of file