/******************************************************************
 * JADE - Java Agent DEvelopment Framework is a framework to develop
 * multi-agent systems in compliance with the FIPA specifications.
 * Copyright (C) 2002 TILAB S.p.A.
 *
 * This file is donated by Acklin B.V. to the JADE project.
 *
 *
 * GNU Lesser General Public License
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation,
 * version 2.1 of the License.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.
 * ***************************************************************/
package jade.tools.gui;

import java.awt.*;
import java.awt.event.*;

import java.lang.reflect.*;
import java.lang.reflect.*;
import javax.swing.*;
import javax.swing.DefaultListModel;
import javax.swing.event.ListDataEvent;

import javax.swing.event.ListDataListener;

import jade.core.AID;
import jade.core.Agent;
import jade.lang.acl.ACLMessage;
import jade.util.leap.Iterator;

/**
 *  This class is used to show a list of AIDs. AIDs can be edited, inserted
 *  and deleted.
 *
 * @author     Chris van Aart - Acklin B.V., the Netherlands
 * @created    April 26, 2002
 */
public class ACLAIDList extends JPanel {
  /**
   *  Constructor for the ACLAIDList object
   *
   * @param  agent  link to agent
   */
  public ACLAIDList(Agent agent) {
    this.agent = agent;
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }


  /**
   *  Sets the Editable attribute of the ACLAIDList object
   *
   * @param  theBool  The new Editable value
   */
  public void setEditable(boolean theBool) {
    if (!theBool) {
      editable = false;
      this.addButton.setEnabled(false);
      this.deleteButton.setEnabled(false);
    }
  }


  /**
   *  register Object and accompagnied field name in ACLMessage
   *
   * @param  fieldName  the fieldname
   * @param  o          Description of Parameter
   */
  public void register(Object o, String fieldName) {
    listModel.removeAllElements();
    this.itsObj = o;
    mode = MSG;
    this.fieldName = fieldName;
    String methodName = "getAll" + fieldName;
    try {
      Method sn = itsObj.getClass().getMethod(methodName, (Class[]) null);
      Iterator itor = (Iterator)sn.invoke(itsObj, new Object[]{});
      while (itor.hasNext()) {
        AID theAID = (AID)itor.next();
        listModel.addElement(theAID);
      }
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
    theDataListener = new AIDListListener();
    theDataListener.register(itsObj, fieldName);
    listModel.addListDataListener(theDataListener);
    contentList.setModel(listModel);
  }


  /**
   *  register AID and fieldname from ACLMessage
   *
   * @param  aid        the AID to register
   * @param  fieldName  fieldname of ACLMessage
   */
  public void register(AID aid, String fieldName) {
    this.itsAid = aid;
    mode = AID;
    this.fieldName = fieldName;
    String methodName = "getAll" + fieldName;
    try {
      Method sn = aid.getClass().getMethod(methodName, (Class[]) null);
      Iterator itor = (Iterator)sn.invoke(aid, new Object[]{});
      while (itor.hasNext()) {
        AID theAID = (AID)itor.next();
        listModel.addElement(theAID);
      }
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
    theDataListener = new AIDListListener();
    theDataListener.register(aid, fieldName);
    listModel.addListDataListener(theDataListener);
    contentList.setModel(listModel);
  }


  /**
   *  show the current selected AID
   */
  void doView() {
    int index = this.contentList.getSelectedIndex();
    if (index < 0) {
      return;
    }
    AID currentAID = (AID)listModel.getElementAt(index);
    AID editAID = (AID)currentAID.clone();
    ACLAIDDialog theDialog = new ACLAIDDialog(agent);
    theDialog.setLocation((int)getLocationOnScreen().getX(), (int)getLocationOnScreen().getY());
    theDialog.setItsAID(editAID);
    theDialog.setEditable(editable);
    theDialog.setTitle(editable ? "Edit AID of: " + currentAID.getName() : "View AID of:" + currentAID.getName());
    theDialog.show();
    if (theDialog.getOK()) {
      theDataListener.registerChangedAID(theDialog.getItsAID());
      listModel.setElementAt(editAID, index);
    }
  }


  /**
   *  Triggered by delete button
   *
   * @param  e  ActionEvent belonging to delete button
   */
  void deleteButton_actionPerformed(ActionEvent e) {
    doDelete();
  }


  /**
   *  delete selected AID
   */
  void doDelete() {
    int index = contentList.getSelectedIndex();
    if (index >= 0) {
      theDataListener.registerRemovedAID((AID)listModel.getElementAt(index));
      this.listModel.remove(index);
    }
  }


  /**
   *  Triggered by add button
   *
   * @param  e  ActionEvent belonging to add button
   */
  void addButton_actionPerformed(ActionEvent e) {
    doAdd();
  }


  /**
   *  Add a AID to the list
   */
  void doAdd() {
    ACLAIDDialog theGui = new ACLAIDDialog(agent);
    theGui.setTitle("<new AID>");
    theGui.setLocation((int)getLocationOnScreen().getX(), (int)getLocationOnScreen().getY());
    theGui.localCheckBox.setSelected(false);
    theGui.show();
    if (theGui.getOK()) {
      listModel.addElement(theGui.getItsAID());
    }

  }


  /**
   *  Triggered by the view button
   *
   * @param  e  ActionEvent belonging to view button
   */
  void viewButton_actionPerformed(ActionEvent e) {
    doView();
  }


  /**
   *  Triggered when clicking with mouse pointer. On doubleclick, call
   *  doView()
   *
   * @param  e  MouseEvent beloning to mouseClicked
   */
  void contentList_mouseClicked(MouseEvent e) {
    if (e.getClickCount() > 1) {
      doView();
    }

  }


  /**
   *  Triggered when pressing a key. Enter will call doView(), Insert will
   *  call doAdd(), and Delete will call doDelete().
   *
   * @param  e  KeyEvent beloning to keyPressed
   */
  void contentList_keyPressed(KeyEvent e) {
    if (e.getKeyCode() == e.VK_ENTER) {
      doView();
    }

    if (!editable) {
      return;
    }

    if (e.getKeyCode() == e.VK_INSERT) {
      doAdd();
    }

    if (e.getKeyCode() == e.VK_DELETE) {
      doDelete();
    }