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package jirssi.gui;import java.awt.CardLayout;public class WindowContainer extends JPanel {	private static Window noticeWindow;	private static CardLayout layout = new CardLayout();	private static List<Window> windowList = new ArrayList<Window>();	private static Session selectedSession;	private static Window selectedWindow;	private static WindowContainer me;		private WindowContainer()	{		super(layout);		noticeWindow = new Window(null ,null , null , IRCDocument.Type.MAIN);		windowList.add(noticeWindow);		add(noticeWindow , noticeWindow.toString());		EventQueue.invokeLater(new Runnable()		{			public void run() 			{				show(noticeWindow);			}		});	}		public static WindowContainer getInstance()	{		if(me == null) me = new WindowContainer();		return me;	}		public static void removeWindow(Window win)	{		layout.removeLayoutComponent(win);	}		public static List<Window> getWindowList()	{		return windowList;	}		public static void nextWindow()	{		layout.next(me);	}		public static void previousWindow()	{		layout.previous(me);	}		public static void show(Window window)	{		if(window != noticeWindow)		{			selectedSession = window.getDocument().getSession();		}		selectedWindow = window;		layout.show(me,window.toString());	}		public static Window getSelectedWindow()	{		return selectedWindow;	}		public static void setSelectedSession(Session session)	{		selectedSession = session;	}		public static void show(int index)	{		show(windowList.get(index));	}		public static Session getSelectedSession()	{		return selectedSession;	}		public static void addWindow(Window window)	{		me.add(window , window.toString());		windowList.add(window);		show(window);	}		public static Window getNoticeWindow()	{		return noticeWindow;	}}