我最大化JInternalFrame时在JInternalFrame上编写JMenubar示例 [英] Example Program JMenubar on JInternalFrame when i Maximize the JInternalFrame

问题描述

嗨我需要一个示例程序，其中
当我最大化JInternalFrame时，JFrame的JMenuBar应该设置在JInternalFrame
上，当我再次最小化JInternalFrame时，JMenuBar应该离开JinternalFrame并设置
到JFrame，如下所示

Hi I need an Example program in which When i maximize the JInternalFrame the JMenuBar of JFrame should set on JInternalFrame and When i minimize the JInternalFrame again the JMenuBar should leave JinternalFrame and set to JFrame as shown below

请在Java Swing中为我提供一个示例程序

Please provide me an Example Program in Java Swing

推荐答案

似乎工作正常，请发布 SSCCE 显示特定问题：

Seems to work fine, please post SSCCE to show specific problem:

import java.awt.*;
import java.awt.event.*;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.SwingUtilities;

public class JInternalFrameDemo {

    JDesktopPane jdpDesktop;
    static int openFrameCount = 0;

    public JInternalFrameDemo() {
        JFrame frame = new JFrame("JInternalFrame Usage Demo");

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // A specialized layered pane to be used with JInternalFrames
        jdpDesktop = new JDesktopPane() {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(600, 600);
            }
        };


        createFrame(); // Create first window

        frame.setContentPane(jdpDesktop);

        frame.setJMenuBar(createMenuBar());

        // Make dragging faster by setting drag mode to Outline
        jdpDesktop.putClientProperty("JDesktopPane.dragMode", "outline");

        frame.pack();
        frame.setVisible(true);
    }

    protected JMenuBar createMenuBar() {
        JMenuBar menuBar = new JMenuBar();
        JMenu menu = new JMenu("Frame");
        menu.setMnemonic(KeyEvent.VK_N);
        JMenuItem menuItem = new JMenuItem("New IFrame");
        menuItem.setMnemonic(KeyEvent.VK_N);
        menuItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                createFrame();
            }
        });
        menu.add(menuItem);
        menuBar.add(menu);
        return menuBar;
    }

    protected void createFrame() {
        MyInternalFrame frame = new MyInternalFrame();
        frame.setVisible(true);
        // Every JInternalFrame must be added to content pane using JDesktopPane
        jdpDesktop.add(frame);
        try {
            frame.setSelected(true);
        } catch (java.beans.PropertyVetoException e) {
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new JInternalFrameDemo();
            }
        });
    }

    class MyInternalFrame extends JInternalFrame {

        static final int xPosition = 30, yPosition = 30;

        public MyInternalFrame() {
            super("IFrame #" + (++openFrameCount), true, // resizable
                    true, // closable
                    true, // maximizable
                    true);// iconifiable
            setSize(300, 300);
            // Set the window's location.
            setLocation(xPosition * openFrameCount, yPosition
                    * openFrameCount);
        }
    }
}

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