MainFrame.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.BorderFactory; 
import javax.swing.border.*;

public class MainFrame extends JFrame implements ActionListener, ComponentListener
{
	private JButton bttn;
	private JFileChooser fch = new JFileChooser();
	private OperationPanel opr;
	public static User currentUser = new User();
	
	public MainFrame()
	{
		WindowUtilities.setNativeLookAndFeel();
	}
	
	public MainFrame(String title, User us)
	{
		super(title);
		setDefaultCloseOperation(MainFrame.EXIT_ON_CLOSE);
		addComponentListener(this);
		setSize(800, 600);
		setIconImage(new ImageIcon("icon.png", "").getImage());
		WindowUtilities.setNativeLookAndFeel();
		SwingUtilities.updateComponentTreeUI(fch);
		
		currentUser = us;
		
		setMenus();
		setPanels();
		
		setExtendedState(MainFrame.MAXIMIZED_BOTH);
		setVisible(true);
	}
	
	private void setMenus()
	{
		//Create the menu bar.
		JMenuBar menuBar = new JMenuBar();
		JMenu menu;
		JMenuItem menuItem;
		
		//File menu  ----------------------------------------------------------------------------------------------------------|
		menu = new JMenu(" File ");
		menu.setMnemonic(KeyEvent.VK_F);
		menu.getAccessibleContext().setAccessibleDescription("The menu for file related operation");
		menuBar.add(menu);
		
		menuItem = new JMenuItem("New", KeyEvent.VK_N);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything");
		menuItem.addActionListener(this);
		menuItem.setEnabled(false);
		//menu.add(menuItem);
		
		menuItem = new JMenuItem("Open...", KeyEvent.VK_O);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This only opens the File Chooser");
		menuItem.addActionListener(this);
		//menu.add(menuItem);
		
		menuItem = new JMenuItem("Save As...", KeyEvent.VK_S);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This only opens the File Chooser");
		menuItem.addActionListener(this);
		//menu.add(menuItem);
		
		menuItem = new JMenuItem("Log Out", KeyEvent.VK_L);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This logs you out");
		menuItem.addActionListener(this);
		menu.add(menuItem);
		
		menu.addSeparator();
		
		menuItem = new JMenuItem("Exit", KeyEvent.VK_Q);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, ActionEvent.ALT_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This exits the program");
		menuItem.addActionListener(this);
		menu.add(menuItem);
		
		//Edit menu  ----------------------------------------------------------------------------------------------------------|
		menu = new JMenu(" Edit ");
		menu.setMnemonic(KeyEvent.VK_E);
		menu.getAccessibleContext().setAccessibleDescription("The menu for editing");
		menuBar.add(menu);
		
		menuItem = new JMenuItem("Cut", KeyEvent.VK_X);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything");
		menuItem.addActionListener(this);
		menuItem.setEnabled(false);
		menu.add(menuItem);
		
		menuItem = new JMenuItem("Copy", KeyEvent.VK_C);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything");
		menuItem.addActionListener(this);
		menuItem.setEnabled(false);
		menu.add(menuItem);
		
		menuItem = new JMenuItem("Paste", KeyEvent.VK_P);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything");
		menuItem.addActionListener(this);
		menuItem.setEnabled(false);
		menu.add(menuItem);
		
		//User menu  ----------------------------------------------------------------------------------------------------------|
		menu = new JMenu(" User ");
		menu.setMnemonic(KeyEvent.VK_U);
		menu.getAccessibleContext().setAccessibleDescription("The menu for managing users");
		menuBar.add(menu);
		
		menuItem = new JMenuItem("Register", KeyEvent.VK_R);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This register guest as user");
		menuItem.addActionListener(this);
		menuItem.setEnabled(currentUser.requireAccessLevel(User.AccessLevel.GUEST));
		menu.add(menuItem);
		
		menuItem = new JMenuItem("Authorize Registration", KeyEvent.VK_I);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_I, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This authorize the user registrations");
		menuItem.addActionListener(this);
		menuItem.setEnabled(currentUser.requireAccessLevel(User.AccessLevel.LECTURER));
		menu.add(menuItem);
		
		//Stat menu  ----------------------------------------------------------------------------------------------------------|
		menu = new JMenu(" Stat ");
		menu.setMnemonic(KeyEvent.VK_T);
		menu.getAccessibleContext().setAccessibleDescription("The menu for users statics");
		menuBar.add(menu);
		
		menuItem = new JMenuItem("View Statistics", KeyEvent.VK_W);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_W, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This show statistics of users");
		menuItem.addActionListener(this);
		menuItem.setEnabled(currentUser.requireAccessLevel(User.AccessLevel.LECTURER));
		menu.add(menuItem);
		
		//Help menu  ----------------------------------------------------------------------------------------------------------|
		menu = new JMenu(" Help ");
		menu.setMnemonic(KeyEvent.VK_H);
		menu.getAccessibleContext().setAccessibleDescription("The menu for help");
		menuBar.add(menu);
		
		menuItem = new JMenuItem("About", KeyEvent.VK_A);
		menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F1, ActionEvent.CTRL_MASK));
		menuItem.getAccessibleContext().setAccessibleDescription("This doesn't really do anything");
		menuItem.addActionListener(this);
		menu.add(menuItem);
		//  -------------------------------------------------------------------------------------------------------------------|
		
		setJMenuBar(menuBar);
	}
	
	private void setPanels()
	{
		Container content = getContentPane();
		content.setBackground(Color.WHITE);
		content.setLayout(new BorderLayout());
		
		JPanel topPanel = new JPanel();
		topPanel.setLayout(new BoxLayout(topPanel, BoxLayout.LINE_AXIS));
		topPanel.add(Box.createHorizontalStrut(5));
		topPanel.add(new JLabel("Welcome! "));
		topPanel.add(new JLabel(currentUser.getNickname()));
		
		Box.Filler glue1 = (Box.Filler)Box.createHorizontalGlue();
		glue1.changeShape(glue1.getMinimumSize(), new Dimension(Short.MAX_VALUE/4, 0), glue1.getMaximumSize());
		topPanel.add(glue1);
		
		JButton settingBtn = new JButton("Setting");
		topPanel.add(settingBtn);
		settingBtn.addActionListener(this);
		settingBtn.setEnabled(currentUser.requireAccessLevel(User.AccessLevel.STUDENT));
		topPanel.add(Box.createHorizontalStrut(5));
		JButton logoutBtn = new JButton("Log Out");
		topPanel.add(logoutBtn);
		logoutBtn.addActionListener(this);
		topPanel.add(Box.createHorizontalStrut(5));
		
		content.add(topPanel, BorderLayout.PAGE_START);
		
		opr = new OperationPanel();
		content.add(opr, BorderLayout.CENTER);
		
		JPanel bottomPanel = new JPanel();
		bottomPanel.setLayout(new BoxLayout(bottomPanel, BoxLayout.LINE_AXIS));
		Box.Filler glue2 = (Box.Filler)Box.createHorizontalGlue();
		glue2.changeShape(glue2.getMinimumSize(), new Dimension(Short.MAX_VALUE/4, 0), glue2.getMaximumSize());
		bottomPanel.add(glue2);
		bottomPanel.add(new JSeparator(JSeparator.VERTICAL));
		bottomPanel.add(Box.createHorizontalStrut(5));
		bottomPanel.add(new JButton(" "));
		bottomPanel.add(Box.createHorizontalStrut(5));
		content.add(bottomPanel, BorderLayout.PAGE_END);
	}
	
	public void actionPerformed(ActionEvent evt)
	{
		String btnText = evt.getActionCommand();
		
		if(btnText.equals("Exit"))
		{
			System.exit(0);
		}
		else if(btnText.equals("Open..."))
		{
			int returnVal = fch.showOpenDialog(this);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                //File file = fch.getSelectedFile();
                //This is where a real application would open the file.
				
				JOptionPane.showMessageDialog(this, "Can't open anything yet!");
            }
		}
		else if(btnText.equals("Save As..."))
		{
			int returnVal = fch.showSaveDialog(this);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                //File file = fch.getSelectedFile();
                //This is where a real application would open the file.
				
				JOptionPane.showMessageDialog(this, "Can't save anything yet!");
            }
		}
		else if(btnText.equals("Log Out"))
		{
			setVisible(false);
		}
		else if(btnText.equals("Register"))
		{
			RegisterDialog registerPrompt = new RegisterDialog(this, false);
		}
		else if(btnText.equals("Setting"))
		{
			RegisterDialog registerPrompt = new RegisterDialog(this, true);
		}
		else if(btnText.equals("Authorize Registration"))
		{
			InvitationDialog invitePrompt = new InvitationDialog(this);
		}
		else if(btnText.equals("View Statistics"))
		{
			ReportDialog reportPrompt = new ReportDialog(this);
		}
		else if(btnText.equals("About"))
		{
			AboutDialog aboutPrompt = new AboutDialog(this);
		}
		else
		{
			JOptionPane.showMessageDialog(this, btnText + " has not been implemented!");
		}
	}
	
	public void componentResized(ComponentEvent evt)
	{
		if(opr != null)
		{
			opr.updateMessageBoard();
		}
	}
	
	public void componentHidden(ComponentEvent evt) {}
	public void componentMoved(ComponentEvent evt) {}
	public void componentShown(ComponentEvent evt) {}
}