java - 我可以在 JEditorPane 上方但 JTabbedPane 下方获取 JTextField 吗？

Question

我正在开发一个带有选项卡的简单网络浏览器。我在选项卡 Pane 下方添加文本字段时遇到很多麻烦，就像在 Chrome 中一样。这是我到目前为止所拥有的: 公共(public)类浏览器 { 私有(private) JFrame 框架； 私有(private) JPanel 面板顶部； 私有(private) JEditorPane 编辑器； 私有(private) JScrollPane 滚动； 私有(private) JTextField 字段； 私有(private) JButton 按钮； 私有(private) JButton 主页； 私有(private) URL url； 私有(private) JMenu 文件 = new JMenu("文件"); 私有(private) JMenuItem exit = new JMenuItem("退出"); 私有(private) JMenuBar 菜单栏 = new JMenuBar(); private ImageIcon nt = new ImageIcon("./Icons/newTab.jpg"); private ImageIcon cl = new ImageIcon("./Icons/close.png"); 私有(private) JButton newTab = new JButton(cl); 私有(private) JTabbedPane tabbedPane = new JTabbedPane(); 私有(private) int tabCounter = 0; 私有(private)尺寸昏暗=新尺寸(nt.getIconWidth()+ 2， nt.getIconHeight()+2); 公共(public)浏览器() { initComponents();

    frame = new JFrame();
    frame.setTitle("TeslaNet Browser");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(800,600);

    frame.setJMenuBar(menuBar);
    menuBar.add(file);
    file.add(exit);

    exit.addActionListener(new ActionListener()
    {
        public void actionPerformed(ActionEvent e)
        {
            System.exit(0);
        }
    });

    panelTop = new JPanel();
    frame.add(BorderLayout.NORTH, panelTop);
    panelTop.add(field);
    panelTop.add(button);
    panelTop.add(home);
    panelTop.add(newTab);

    newTab.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e)
        {
            initComponents();
        }
    });
    newTab.setToolTipText("New Tab");
    newTab.setPreferredSize(dim);

    JPanel topPanel = new JPanel();
    topPanel.setLayout(new BorderLayout());
    frame.add(topPanel);
    topPanel.add(tabbedPane, BorderLayout.CENTER);

    panelTop.add(scroll, BorderLayout.CENTER);
    frame.setVisible(true);
}
private void initComponents()
{
    try
    {
        url = new URL("http://www.reddit.com");
    }
    catch(MalformedURLException mal)
    {
        JOptionPane.showMessageDialog(null,mal);
    }

    try
    {
        editor = new JEditorPane(url);
        editor.setEditable(false);
    }
    catch(IOException ioe)
    {
        JOptionPane.showMessageDialog(null,ioe);
    }

    scroll = new JScrollPane(editor, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

    field = new JTextField(14);

    SwingUtilities.invokeLater(new Runnable()
    {
       public void run()
       {
           field.setText(url.toString());
       }
    });

    button = new JButton("Go");
    button.addActionListener(new ActionListener()
    {
        public void actionPerformed(ActionEvent e)
        {
            try
            {
                editor.setPage(field.getText());
            }

            catch(IOException ioe)
            {
                JOptionPane.showMessageDialog(null, ioe);
            }
        }
    });

    home = new JButton("Home");
    home.addActionListener(new ActionListener()
    {
        public void actionPerformed(ActionEvent e)
        {
            try
            {
                url = new URL("http://www.thissongissick.com");
                field.setText(url.toString());
            }

            catch(MalformedURLException mal)
            {
                JOptionPane.showMessageDialog(null,mal);
            }

            try
            {
                editor.setPage(field.getText());
            }

            catch(IOException ioe)
            {
                JOptionPane.showMessageDialog(null, ioe);
            }
        }
    });        
    JPanel tab = new JPanel();

    JButton closeButton = new JButton(nt);
    closeButton.addActionListener(new ActionListener() 
    {
        public void actionPerformed(ActionEvent e) 
        {
            tabbedPane.remove(tabbedPane.getTabCount()-1);
        }
      });
    closeButton.setPreferredSize(dim);
    closeButton.setToolTipText("Close");


    JLabel tabLabel = new JLabel("Tab " + (++tabCounter));
    System.out.print(tabbedPane.getSelectedIndex());
    tab.setOpaque(false);

    tab.add(tabLabel, BorderLayout.WEST);
    tab.add(closeButton, BorderLayout.EAST);

    tabbedPane.addTab(null, editor);
    tabbedPane.setTabComponentAt(tabbedPane.getTabCount()-1, tab);
}
}

谢谢!

Answer 1

看看这个例子。我不想尝试猜测哪些变量适用于哪个组件，所以我想出了一个类似的例子。您需要做的就是将所需的所有内容放入选项卡的面板中内部。因此基本上每个面板都会有自己的文本字段和编辑器 Pane

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

public class Browser1 {
    private JTabbedPane tabbedPane;
    private final JButton add;
    int i = 1;

    public Browser1() {
        tabbedPane = new JTabbedPane();
        tabbedPane.add(new JScrollPane(createTabbedPanel()), "Tab " + i);

        add = new JButton("Add Tab");
        add.addActionListener(new ActionListener(){
            @Override
            public void actionPerformed(ActionEvent e) {
                i++;
                tabbedPane.add(new JScrollPane(createTabbedPanel()), "Tab " + i);
            }
        });

        JFrame frame = new JFrame("Browser");
        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.LEADING));
        buttonPanel.add(add);
        frame.add(buttonPanel, BorderLayout.PAGE_START);
        frame.add(tabbedPane);
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    private JPanel createTabbedPanel() {
        JPanel panel = new JPanel(new BorderLayout());
        JTextField field = new JTextField(50);
        JEditorPane pane = new JEditorPane();
        pane.setPreferredSize(new Dimension(700, 500));

        panel.add(field, BorderLayout.NORTH);
        panel.add(pane, BorderLayout.CENTER);
        return panel;
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable(){
            @Override
            public void run() {
                new Browser1();
            }
        });
    }
}