roompanel.java

机械工业出版社的《jsp2.0动态网站开发实例指南》的源代码

package ui;
import RoomPackage.Room;
import RoomPackage.RoomManager;

import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.*;

import AccountsPack.User;
/*
 * Created on 2005-4-12
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author zinniazxp
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class RoomPanel extends JPanel {

	private JLabel jLabel = null;
	private JLabel jLabel1 = null;
	private JComboBox jComboBox = null;
	private JLabel jLabel2 = null;
	private JTextField jTextField = null;
	private JLabel jLabel3 = null;
	private JLabel jLabel4 = null;
	private JComboBox jComboBox1 = null;
	private JComboBox jComboBox2 = null;
	private JLabel jLabel5 = null;
	private JPanel jPanel = null;
	private JPanel jPanel1 = null;
	private JButton jButton = null;
	private JButton jButton1 = null;
	private JTextArea jTextArea = null;
    private Handler _handler = new Handler();
    private Room _currentRoom = null;

	/**
	 * This method initializes jComboBox	
	 * 	
	 * @return javax.swing.JComboBox	
	 */    
	private JComboBox getJComboBox() {
		if (jComboBox == null) {
			String[] items = Room.ROOMTYPE;
			jComboBox = new JComboBox(items);
			jComboBox.setPreferredSize(new java.awt.Dimension(80,20));
		}
		return jComboBox;
	}
	/**
	 * This method initializes jTextField	
	 * 	
	 * @return javax.swing.JTextField	
	 */    
	private JTextField getJTextField() {
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setPreferredSize(new java.awt.Dimension(80,20));
		}
		return jTextField;
	}
	/**
	 * This method initializes jComboBox1	
	 * 	
	 * @return javax.swing.JComboBox	
	 */    
	private JComboBox getJComboBox1() {
		if (jComboBox1 == null) {
			String[] items = {"Yes", "No"};
			jComboBox1 = new JComboBox(items);
			jComboBox1.setPreferredSize(new java.awt.Dimension(80,20));
		}
		return jComboBox1;
	}
	/**
	 * This method initializes jComboBox2	
	 * 	
	 * @return javax.swing.JComboBox	
	 */    
	private JComboBox getJComboBox2() {
		if (jComboBox2 == null) {
			String[] items = {"Yes", "No"};
			jComboBox2 = new JComboBox(items);
			jComboBox2.setPreferredSize(new java.awt.Dimension(80,20));
		}
		return jComboBox2;
	}
	/**
	 * This method initializes jPanel	
	 * 	
	 * @return javax.swing.JPanel	
	 */    
	private JPanel getJPanel() {
		if (jPanel == null) {
			jPanel = new JPanel();
			jPanel.setPreferredSize(new java.awt.Dimension(600,100));
			jPanel.add(getJPanel1(), null);
			jPanel.add(getSubmitButton(), null);
			jPanel.add(getCancelButton(), null);
		}
		return jPanel;
	}
	/**
	 * This method initializes jPanel1	
	 * 	
	 * @return javax.swing.JPanel	
	 */    
	private JPanel getJPanel1() {
		if (jPanel1 == null) {
			jPanel1 = new JPanel();
			jPanel1.setPreferredSize(new java.awt.Dimension(590,40));
		}
		return jPanel1;
	}
	/**
	 * This method initializes jButton	
	 * 	
	 * @return javax.swing.JButton	
	 */    
	private JButton getSubmitButton() {
		if (jButton == null) {
			jButton = new JButton();
			jButton.setText("Submit");
            jButton.addActionListener(_handler);
            jButton.setActionCommand("SUBMIT");
		}
		return jButton;
	}
	/**
	 * This method initializes jButton1	
	 * 	
	 * @return javax.swing.JButton	
	 */    
	public JButton getCancelButton() {
		if (jButton1 == null) {
			jButton1 = new JButton();
			jButton1.setText("Cancel");
            jButton1.addActionListener(_handler);
            jButton1.setActionCommand("CANCEL");
		}
		return jButton1;
	}
	/**
	 * This method initializes jTextArea	
	 * 	
	 * @return javax.swing.JTextArea	
	 */    
	private JTextArea getJTextArea() {
		if (jTextArea == null) {
			jTextArea = new JTextArea();
			jTextArea.setPreferredSize(new java.awt.Dimension(500,60));
			jTextArea.setLineWrap(true);
			jTextArea.setRows(3);
		}
		return jTextArea;
	}

	/**
	 * This is the default constructor
	 */
	public RoomPanel() {
		super();
        jLabel5 = new JLabel();
        jLabel4 = new JLabel();
        jLabel3 = new JLabel();
        jLabel2 = new JLabel();
        jLabel1 = new JLabel();
        jLabel = new JLabel();
        setLayout(new FlowLayout());
        jLabel.setText("                              Add a room...");
        jLabel.setPreferredSize(new java.awt.Dimension(600,60));
        jLabel.setFont(new java.awt.Font("Dialog", java.awt.Font.BOLD, 18));
        jLabel1.setText("Type");
        jLabel1.setPreferredSize(new java.awt.Dimension(50,20));
        jLabel2.setText("Prize");
        jLabel2.setPreferredSize(new java.awt.Dimension(50,20));
        jLabel3.setText("Breakfast");
        jLabel3.setPreferredSize(new java.awt.Dimension(70,20));
        jLabel4.setText("Telephone");
        jLabel4.setPreferredSize(new java.awt.Dimension(70,20));
        jLabel5.setText("Description");
        jLabel5.setPreferredSize(new java.awt.Dimension(450,20));
        add(jLabel, null);
        add(jLabel1, null);
        add(getJComboBox(), null);
        add(jLabel2, null);
        add(getJTextField(), null);
        add(jLabel3, null);
        add(getJComboBox1(), null);
        add(jLabel4, null);
        add(getJComboBox2(), null);
        add(jLabel5, null);
        add(new JScrollPane(getJTextArea()), null);
        add(getJPanel(), null);
	}

	public void showRoomInfo(Room room) {
	    jComboBox.setSelectedIndex(room.get_roomType());
        jTextField.setText(new Float(room.get_roomPrice()).toString());
        jTextArea.setText(room.get_roomDescription());
        jComboBox2.setSelectedIndex(room.get_roomHasPhone() ? 0 : 1);
        jComboBox1.setSelectedIndex(room.get_roomOfferBreakfast() ? 0 : 1);
	}
	
    public void setValues(Room room){
        if(room == null){
            // add room info
            /*
            todo  set value of default info
            */
            showRoomInfo(new Room());
            getSubmitButton().setText(" Add ");
        }
        else{
            //modify room info
            /*
            todo  set value of room
            */
            _currentRoom = room;
            showRoomInfo(_currentRoom);
            jLabel.setText("                              Modify a room...");
            getSubmitButton().setText("Modify");
        }
    }
    
    public void OnSubmit(){
        Room newRoom = (_currentRoom!=null)?_currentRoom:(new Room());
        newRoom.set_roomType(jComboBox.getSelectedIndex());
        newRoom.set_roomPrice(Float.parseFloat(jTextField.getText()));
        newRoom.set_roomDescription(jTextArea.getText());
        newRoom.set_roomHasPhone(jComboBox2.getSelectedIndex() == 0 ? true : false);
        newRoom.set_roomOfferBreakfast(jComboBox1.getSelectedIndex() == 0 ? true : false);
        RoomManager mgr = RoomManager.get_INSTANCE();
        if (jButton.getText().equals(" Add ")||jButton.getText().equals("Submit")) {
            if (mgr.AddRoom(newRoom)){
                JOptionPane.showMessageDialog(this, "Add room succeeded!", "Message", JOptionPane.ERROR_MESSAGE);
            } else {
                JOptionPane.showMessageDialog(this, "Add room failed!", "Error", JOptionPane.ERROR_MESSAGE);
            }
        }else if (jButton.getText().equals("Modify")) {
            if (mgr.ModifyRoom(newRoom)){
                JOptionPane.showMessageDialog(this, "Modify room succeeded!", "Message", JOptionPane.ERROR_MESSAGE);
            } else {
                JOptionPane.showMessageDialog(this, "Modify room failed!", "Error", JOptionPane.ERROR_MESSAGE);
            }
        }
    }

    private class Handler implements ActionListener{
        public void actionPerformed(ActionEvent ev) {
            if("SUBMIT" == ev.getActionCommand()){
                OnSubmit();
                _currentRoom = null;
                System.out.println("roompanel submit button clicked");
            }
            else if("CANCEL" == ev.getActionCommand()){
                System.out.println("roompanel cancel button cliked");
                setValues(_currentRoom);
            }
            else if("EXIT" == ev.getActionCommand()){
                JFrame parent = (JFrame) SwingUtilities.getAncestorOfClass(JFrame.class, jButton1);
                parent.dispose();
            }

        }
    }

    public static void main(String[] args)
    {
        JFrame frame = new JFrame("Room");
        frame.setResizable(false);
		frame.setSize(640, 320);
        frame.setContentPane(new RoomPanel());
        //frame.pack();
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setLocation(100,100);
        frame.setVisible(true);
	}

}