逛奔的蜗牛

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Java: 如TabbedPane一样显示多个面板: 设置时用得多

 

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

public class MultiPanel extends JPanel {
    private static final long serialVersionUID = 1L;
    private JButton           changeButton1;
    private JButton           changeButton2;
    private JButton           changeButton3;
    private JPanel            panel1;
    private JPanel            panel2;
    private JPanel            panel3;
    private JPanel            currentPanel;

    public MultiPanel() {
        this.setLayout(new BorderLayout());

        changeButton1 = new JButton(
                "<html><font color=red>Red Panel</font></html>");
        changeButton2 = new JButton(
                "<html><font color=green>Green Panel</font></html>");
        changeButton3 = new JButton(
                "<html><font color=blue>Blue Panel</font></html>");
        panel1 = new JPanel();
        panel2 = new JPanel();
        panel3 = new JPanel();

        panel1.setBackground(Color.RED);
        panel2.setBackground(Color.GREEN);
        panel3.setBackground(Color.BLUE);
        currentPanel = panel1;

        Box box = Box.createHorizontalBox();
        box.add(changeButton1);
        box.add(changeButton2);
        box.add(changeButton3);
        this.add(box, BorderLayout.SOUTH);

        this.add(currentPanel, BorderLayout.CENTER);

        addButtonActionListener();
    }

    private void addButtonActionListener() {
        changeButton1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                currentPanel.setVisible(false);
                currentPanel = panel1;
                currentPanel.setVisible(true);
                add(currentPanel, BorderLayout.CENTER);
                validate();
            }
        });

        changeButton2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                currentPanel.setVisible(false);
                currentPanel = panel2;
                currentPanel.setVisible(true);
                add(currentPanel, BorderLayout.CENTER);
                validate();
            }
        });

        changeButton3.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                currentPanel.setVisible(false);
                currentPanel = panel3;
                currentPanel.setVisible(true);
                add(currentPanel, BorderLayout.CENTER);
                validate();
            }
        });
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("Multi Panel");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(500, 600);

        MultiPanel panel = new MultiPanel();
        frame.getContentPane().add(panel, BorderLayout.CENTER);

        frame.setVisible(true);
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                MultiPanel.createAndShowGUI();
            }
        });
    }

}
posted on 2008-03-22 18:35 逛奔的蜗牛 阅读(855) 评论(0)  编辑 收藏 引用 所属分类: Java

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