/*
    * Fsgrep is a simple Java application which allows a user to
    * search all files in a directory structure for lines matching
    * a given pattern.  Its functionality is a combination of the
    * Unix 'find' and 'grep' utilities.
    * Visit [http://fsgrep.sourceforge.net/] for more information.
    * 
    * Copyright (C) 2003-2006 Murali Krishnan [murali_ca_us@users.sourceforge.net]
    * 
   * Fsgrep is free software; you can redistribute it and/or modify
   * it under the terms of version 2 of the GNU General Public
   * License as published by the Free Software Foundation.
   * 
   * Fsgrep 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 Fsgrep (see the file named LICENSE.txt); if not, write
   * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
   * Boston, MA  02111-1307  USA
   */
  
  package mk.fsgrep.gui;
  
  
  import java.awt.*;
  import java.awt.event.*;
  import java.util.*;
  import javax.swing.*;
  
  
  /***
   * A dialog that allows the user to select an item from the list of recently
   * used search patterns.
   * 
   * @author  Murali Krishnan
   *
   */
  public class RecentPatternSelector {
  
      //------------------------------------------------------------
      //- Class Variables
  
  
  
      //------------------------------------------------------------
      //- Class Functions
  
  
  
      //------------------------------------------------------------
      //- Instance Variables
  
      private App _app = null;
      private JDialog _dialog = null;
      private JList _list = new JList();
      private JButton _buttonOk = new JButton("Select");
      private JButton _buttonCancel = new JButton("Cancel");
  
  
      //------------------------------------------------------------
      //- Constructors
  
      RecentPatternSelector(App pApp) {
          _app = pApp;
  
          initialize();
      }
  
  
      //------------------------------------------------------------
      //- Accessors
  
      protected App getApp() {return _app;}
      protected JDialog getDialog() {return _dialog;}
      protected JList getList() {return _list;}
      protected JButton getButtonOk() {return _buttonOk;}
      protected JButton getButtonCancel() {return _buttonCancel;}
  
  
      //------------------------------------------------------------
      //- Settors
  
      protected void setDialog(JDialog val) {_dialog=val;}
  
  
      //------------------------------------------------------------
      //- Private/Protected Utility Functions
  
      public void initialize() {
          createComponents();
          defineActions();
          makeFrame();
      }
  
  
      public void createComponents() {
         getList().setListData(new Vector(getApp().getRecentSearches()));
         getList().setBorder(BorderFactory.createTitledBorder("Recent searches:"));
 
         String title = "Recent Search Patterns";
         _dialog = new JDialog(getApp().getFrame(), title, true);
     }
 
 
     public void defineActions() {
         getButtonOk().addActionListener(new ActionListener() {
                 public void actionPerformed (ActionEvent e) {
                     handleItemSelection();
                 }
             });
 
         getButtonCancel().addActionListener(new ActionListener() {
                 public void actionPerformed (ActionEvent e) {
                     getDialog().dispose();
                 }
             });
 
 
         getList().addMouseListener(new MouseAdapter() {
                 public void mouseClicked(MouseEvent e) {
                     if (e.getClickCount() == 2) {
                         handleItemSelection();
                     }
                 }
             });
     }
 
 
     public void makeFrame() {
       getDialog().getContentPane().setLayout(new BorderLayout());
 
       getDialog().getContentPane().add(makeMainPanel(), BorderLayout.CENTER);
       getDialog().getContentPane().add(makeButtonPanel(), BorderLayout.SOUTH);
 
       getDialog().pack();
       Point location = getApp().getFrame().getLocation();
       Point buttonLocation = getApp().findButtonSelectPattern().getLocation();
       location.translate(buttonLocation.x, 50);
       getDialog().setLocation(location);
       getDialog().setVisible(true);
     }
 
 
     protected JPanel makeMainPanel() {
         JPanel result = new JPanel(new BorderLayout());
 
         result.add(getList(), BorderLayout.CENTER);
 
         return result;
     }
 
 
     protected JPanel makeButtonPanel() {
         JPanel result = new JPanel(new BorderLayout());
 
         ArrayList<JButton> buttons = new ArrayList<JButton>();
         {
             buttons.add(getButtonOk());
             buttons.add(getButtonCancel());
         }
 
         result.add(App.wrapButtons(buttons), BorderLayout.EAST);
 
         return result;
     }
 
 
     //------------------------------------------------------------
     //- Protected Action Handling
 
     protected void handleItemSelection() {
         String selection = (String) getList().getSelectedValue();
         if (selection == null) {
             System.err.println("Nothing selected.");
         } else {
             getApp().setSearchText(selection);
             JTextField field = getApp().findSearchField();
             field.grabFocus();
             getDialog().dispose();
         }
     }
 
 
     //------------------------------------------------------------
     //- Public Interface Functions
 
 
 
     //------------------------------------------------------------
     //- Class Interface Functions
 
 
 
     //------------------------------------------------------------
     //- Inner Classes
 
 
 
     //------------------------------------------------------------
     //- Main
 
 
 
 }