JAVA: 메뉴 창 간단하게 추가 (swing)

  1 package com.le.menu;
  2 
  3 import java.awt.Color;
  4 import java.awt.Container;
  5 import java.awt.FlowLayout;
  6 import java.awt.GridLayout;
  7 import java.awt.event.ActionEvent;
  8 import java.awt.event.ActionListener;
  9 import java.awt.event.ItemEvent;
 10 import java.awt.event.ItemListener;
 11 import java.awt.event.KeyEvent;
 12 
 13 import javax.swing.JFrame;
 14 import javax.swing.JLabel;
 15 import javax.swing.JMenu;
 16 import javax.swing.JMenuBar;
 17 import javax.swing.JMenuItem;
 18 import javax.swing.JPanel;
 19 import javax.swing.JRadioButtonMenuItem;
 20 
 21 public class MenuManagerShow {
 22     private MenuManagerShow() {
 23         init();
 24     }
 25 
 26     public static void main(String[] args) {
 27         MenuManagerShow menuManager = new MenuManagerShow();
 28         menuManager.show();
 29     }
 30 
 31     private void show() {
 32 
 33     }
 34 
 35     class MenuItemListener implements ActionListener {
 36         @Override
 37         public void actionPerformed(ActionEvent e) {
 38             statusLabel.setText("JMenu Item clicked:" + e.getActionCommand() + ".");
 39         }
 40     }
 41 
 42     /**
 43      *          
 44      * 
 45      * @param mainFrame
 46      *               
 47      * @see   :JFrame           (FlowLayout)           ，

 48      *                      ，      。

 49      *        : JFrame         ，             。

 50      */
 51     private void initFrameBgColor(JFrame mFrame) {
 52         Container pane = mFrame.getContentPane();
 53         pane.setBackground(Color.orange);
 54     }
 55 
 56     /**
 57      *   
 58      */
 59     private static final String MENU_MANAGER_TITILE = "Manager Tool";
 60 
 61     private JFrame mainFrame;
 62     private JLabel headerLabel;
 63     private JLabel statusLabel;
 64     private JPanel controlPanel;
 65 
 66     private void init() {
 67         //    
 68         mainFrame = new JFrame();
 69         //   
 70         mainFrame.setTitle(MENU_MANAGER_TITILE);
 71         //       
 72         mainFrame.setSize(400, 400);
 73         //          
 74         mainFrame.setLocation(400, 200);
 75         //            (3)
 76         mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 77         /*
 78          * mainFrame.addWindowListener(new WindowAdapter() { public void
 79          * windowClosing(WindowEvent windowEvent) { System.exit(0); } });
 80          */
 81         //           
 82         mainFrame.setResizable(true);
 83         mainFrame.setLayout(new GridLayout(3, 1));
 84         //            Frame       ，   initFrameBgColor()    
 85         // mainFrame.setBackground(Color.blue);
 86         initFrameBgColor(mainFrame);
 87 
 88         headerLabel = new JLabel("11", JLabel.CENTER);
 89         statusLabel = new JLabel("22", JLabel.CENTER);
 90         controlPanel = new JPanel();
 91         controlPanel.setLayout(new FlowLayout());
 92         controlPanel.setBackground(Color.gray);
 93 
 94         mainFrame.add(headerLabel);
 95         mainFrame.add(controlPanel);
 96         mainFrame.add(statusLabel);
 97 
 98         initMenuBar(mainFrame);
 99 
100         mainFrame.setVisible(true);
101     }
102 
103     /**
104      *       
105      * 
106      * @param mainFrame
107      */
108     private void initMenuBar(JFrame mFrame) {
109         //      
110         final JMenuBar menuBar = new JMenuBar();
111 
112         //        
113         JMenu fileMenu = new JMenu("File");
114         JMenu editMenu = new JMenu("Edit");
115         final JMenu aboutMenu = new JMenu("About");
116         final JMenu linkMenu = new JMenu("Links");
117 
118         //          
119         JMenuItem newMenuItem = new JMenuItem("New");
120         newMenuItem.setMnemonic(KeyEvent.VK_N);
121         newMenuItem.setActionCommand("New");
122 
123         //          :      
124         final JRadioButtonMenuItem showLinksMenu = new JRadioButtonMenuItem("Show Links", true);
125         showLinksMenu.addItemListener(new ItemListener() {
126             public void itemStateChanged(ItemEvent e) {
127                 // state,  1    ,  2     
128                 // System.out.println(e.getStateChange());
129                 //           
130                 if (menuBar.getMenu(3) != null) {
131                     menuBar.remove(linkMenu);
132                     //        
133                     mainFrame.repaint();
134                 } else {
135                     menuBar.add(linkMenu);
136                     mainFrame.repaint();
137                 }
138             }
139         });
140 
141         //      
142         MenuItemListener menuItemListener = new MenuItemListener();
143 
144         //        
145         newMenuItem.addActionListener(menuItemListener);
146 
147         fileMenu.add(newMenuItem);
148         fileMenu.add(showLinksMenu);
149 
150         menuBar.add(fileMenu);
151         menuBar.add(editMenu);
152         menuBar.add(aboutMenu);
153         menuBar.add(linkMenu);
154         //       ，             
155         mFrame.setJMenuBar(menuBar);
156     }
157 }