/* ConnectionsFrame.java */

/* 
 * Copyright (C) 1996-98 Mark Boyns <boyns@sdsu.edu>
 *
 * This file is part of Muffin.
 *
 * 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 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.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.doit.muffin;

import java.awt.Button;
import java.awt.Color;
import java.awt.Event;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;
import java.util.Enumeration;

/**
 * @author Mark Boyns
 */
class ConnectionsFrame extends MuffinFrame implements ActionListener, WindowListener
{
    Monitor monitor;
    TextArea text;

    ConnectionsFrame (Monitor monitor)
    {
	super ("Muffin: Connections");

	this.monitor = monitor;

	text = new TextArea ();
	text.setEditable (false);
	add ("Center", text);

	Button b;
	Panel buttonPanel = new Panel ();
	buttonPanel.setLayout (new GridLayout (1, 2));
	b = new Button ("Update");
	b.setActionCommand ("doUpdate");
	b.addActionListener (this);
	buttonPanel.add (b);
	b = new Button ("Close");
	b.setActionCommand ("doClose");
	b.addActionListener (this);
	buttonPanel.add (b);
	add ("South", buttonPanel);

	addWindowListener (this);

	pack ();
	setSize (getPreferredSize ());
	show ();
	update ();
    }
    
    void update ()
    {
	text.setText ("");
	Enumeration e;
	int count = 0;

	e = monitor.enumerate ();
	while (e.hasMoreElements ())
	{
	    Object obj = (Object) e.nextElement ();
	    text.append (obj.toString () + "\n");
	    count++;
	}
	
	e = Http.enumerate ();
	while (e.hasMoreElements ())
	{
	    Object obj = (Object) e.nextElement ();
	    text.append (obj.toString () + "\n");
	    count++;
	}

	if (count == 0)
	{
	    text.append ("No connections\n");
	}
    }

    public void actionPerformed (ActionEvent event)
    {
	String arg = event.getActionCommand ();

	if ("doClose".equals (arg))
	{
	    setVisible (false);
	}
	else if ("doUpdate".equals (arg))
	{
	    update ();
	}
    }

    public void windowActivated (WindowEvent e)
    {
    }
  
    public void windowDeactivated (WindowEvent e)
    {
    }
  
    public void windowClosing (WindowEvent e)
    {
	setVisible (false);
    }
  
    public void windowClosed (WindowEvent e)
    {
    }
  
    public void windowIconified (WindowEvent e)
    {
    }
  
    public void windowDeiconified (WindowEvent e)
    {
    }
  
    public void windowOpened (WindowEvent e)
    {
    }
}
