/*    This file is part of Peers.    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 3 of the License, or    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, see <http://www.gnu.org/licenses/>.        Copyright 2007, 2008 Yohann Martineau */package net.sourceforge.peers.gui;import java.awt.Container;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Observable;import java.util.Observer;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.SwingUtilities;import javax.swing.SwingWorker;import net.sourceforge.peers.sip.Utils;import net.sourceforge.peers.sip.core.useragent.SipEvent;import net.sourceforge.peers.sip.core.useragent.UAC;import net.sourceforge.peers.sip.core.useragent.UAS;import net.sourceforge.peers.sip.core.useragent.SipEvent.EventType;import net.sourceforge.peers.sip.syntaxencoding.SipUriSyntaxException;import net.sourceforge.peers.sip.transport.SipMessage;import net.sourceforge.peers.sip.transport.SipResponse;public class BasicGUI implements ActionListener, Observer {    public static void main(String[] args) {        SwingUtilities.invokeLater(new Runnable() {            public void run() {                createAndShowGUI();            }        });    }        private static void createAndShowGUI() {        JFrame.setDefaultLookAndFeelDecorated(true);        new BasicGUI();    }        private JFrame mainFrame;    private JPanel mainPanel;    private JTextField uri;    private JButton actionButton;        public BasicGUI() {        mainFrame = new JFrame("Peers: SIP User-Agent");        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                mainPanel = new JPanel();                        uri = new JTextField("sip:192.168.1.2", 15);        actionButton = new JButton("Call");        actionButton.addActionListener(this);                mainPanel.add(uri);        mainPanel.add(actionButton);                Container contentPane = mainFrame.getContentPane();        contentPane.add(mainPanel);                mainFrame.pack();        mainFrame.setVisible(true);        //create sip stack        UAS uas = UAS.getInstance();        uas.getInitialRequestManager().getInviteHandler().addObserver(this);        UAC.getInstance();            }    public void actionPerformed(ActionEvent e) {        final String sipUri = uri.getText();        final String callId = Utils.getInstance().generateCallID();        SwingWorker<Void, Void> swingWorker = new SwingWorker<Void, Void>() {            @Override            protected Void doInBackground() throws Exception {                try {                    UAC.getInstance().invite(sipUri, callId);                } catch (SipUriSyntaxException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }                return null;            }        };        swingWorker.execute();                SwingUtilities.invokeLater(new Runnable() {            public void run() {                new CallFrame(sipUri, callId);            }        });    }    public void update(Observable o, Object arg) {        if (arg instanceof SipEvent) {            SipEvent sipEvent = (SipEvent) arg;            if (sipEvent.getEventType() == EventType.INCOMING_CALL) {                SipMessage sipMessage = sipEvent.getSipMessage();                if (sipMessage instanceof SipResponse) {                    new CallFrame((SipResponse)sipMessage);                }            }        }    }}