/** Leave Group and close JWhiteBoard */
public void stop() {
if (!noChannel) {
try {
channel.close();
} catch (Exception ex) {
System.err.println(ex);
}
}
mainFrame.setVisible(false);
mainFrame.dispose();
}
/**
* Set Frame's title
*
* @param title : frame's title
*/
void setTitle(String title) {
String tmp = "";
if (noChannel) {
mainFrame.setTitle("JWhiteBoard");
return;
}
if (title != null) {
mainFrame.setTitle(title);
} else {
if (channel.getAddress() != null) tmp += channel.getAddress();
tmp += " (" + memberSize + ")";
mainFrame.setTitle(tmp);
}
}
/**
* Init JWhiteBoard interface
*
* @throws Exception
*/
public void go() throws Exception {
if (!noChannel && !useState) channel.connect(groupName);
mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
drawPanel = new DrawPanel(useState);
drawPanel.setBackground(backgroundColor);
subPanel = new JPanel();
mainFrame.getContentPane().add("Center", drawPanel);
clearButton = new JButton("Clean");
clearButton.setFont(defaultFont);
clearButton.addActionListener(this);
leaveButton = new JButton("Exit");
leaveButton.setFont(defaultFont);
leaveButton.addActionListener(this);
subPanel.add("South", clearButton);
subPanel.add("South", leaveButton);
mainFrame.getContentPane().add("South", subPanel);
mainFrame.setBackground(backgroundColor);
clearButton.setForeground(Color.blue);
leaveButton.setForeground(Color.blue);
mainFrame.pack();
mainFrame.setLocation(15, 25);
mainFrame.setBounds(new Rectangle(250, 250));
if (!noChannel && useState) {
channel.connect(groupName, null, stateTimeout);
}
mainFrame.setVisible(true);
}