📄 swingtest.java
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package ch02.section02;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.tree.*;
/**
* Swing 组件测试程序
* 测试Swing所有组件及其相应的事件
*/
public class SwingTest
extends JFrame {
/**
* 主模块，初始化所有子模块，并设置主框架的相关属性
*/
public SwingTest() {
// 初始化所有模块
MenuTest menuTest = new MenuTest();
LeftPanel leftPanel = new LeftPanel();
RightPanel rightPanel = new RightPanel();
BottomPanel bottomPanel = new BottomPanel();
CenterPanel centerPanel = new CenterPanel();
// 设置主框架的布局
Container c = this.getContentPane();
this.setJMenuBar(menuTest);
c.add(leftPanel, BorderLayout.WEST);
c.add(rightPanel, BorderLayout.EAST);
c.add(centerPanel, BorderLayout.CENTER);
c.add(bottomPanel, BorderLayout.SOUTH);
// 利用无名内隐类，增加窗口事件
this.addWindowListener(new WindowAdapter() {
public void WindowClosing(WindowEvent e) {
// 释放资源，退出程序
dispose();
System.exit(0);
}
});
setSize(700, 500);
setTitle("Swing 组件大全简体版");
// 隐藏frame的标题栏,此功暂时关闭，以方便使用window事件
setUndecorated(true);
setLocation(200, 150);
show();
}
/**
* 菜单栏处理模块
* JMenuBar --+
* --JMenu--+
* --JMenuItem --ActionListener
*/
class MenuTest
extends JMenuBar {
private JDialog aboutDialog;
/**
* 菜单初始化操作
*/
public MenuTest() {
JMenu fileMenu = new JMenu("文件");
JMenuItem exitMenuItem = new JMenuItem("退出", KeyEvent.VK_E);
JMenuItem aboutMenuItem = new JMenuItem("关于...", KeyEvent.VK_A);
fileMenu.add(exitMenuItem);
fileMenu.add(aboutMenuItem);
this.add(fileMenu);
aboutDialog = new JDialog();
initAboutDialog();
// 菜单事件
exitMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
dispose();
System.exit(0);
}
});
aboutMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// "关于"对话框的处理
aboutDialog.show();
}
});
}
/**
* 返回关于对话框
*/
public JDialog getAboutDialog() {
return aboutDialog;
}
/**
* 设置"关于"对话框的外观及响应事件,操作和JFrame一样都是在内容
* 框架上进行的
*/
public void initAboutDialog() {
aboutDialog.setTitle("关于");
Container con = aboutDialog.getContentPane();
// Swing 中使用html语句
Icon icon = new ImageIcon("smile.gif");
JLabel aboutLabel = new JLabel("<html><b><font size=5>" +
"<center>Swing！" + "<br>", icon,
JLabel.CENTER);
con.add(aboutLabel, BorderLayout.CENTER);
aboutDialog.setSize(450, 225);
aboutDialog.setLocation(300, 300);
aboutDialog.addWindowListener(new WindowAdapter() {
public void WindowClosing(WindowEvent e) {
dispose();
}
});
}
}
/**
* 最左边模块，继承JPanel,初始化内容为JTree
* JPanel--+
* --JTree
*/
class LeftPanel
extends JPanel {
private int i = 0;
public LeftPanel() {
DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
DefaultMutableTreeNode child = new DefaultMutableTreeNode("Child");
DefaultMutableTreeNode select = new DefaultMutableTreeNode("select");
DefaultMutableTreeNode child1 = new DefaultMutableTreeNode("" + i);
root.add(child);
root.add(select);
child.add(child1);
JTree tree = new JTree(root);
tree.getSelectionModel().setSelectionMode(TreeSelectionModel.
DISCONTIGUOUS_TREE_SELECTION);
// 每个节点的行高
tree.setRowHeight(20);
tree.addTreeSelectionListener(new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e) {
// 内隐类不能直接引用外部类tree，1.外部变量可申明为final 2.新建外部类的对象
JTree tree = (JTree) e.getSource();
DefaultMutableTreeNode selectNode = (DefaultMutableTreeNode) tree.
getLastSelectedPathComponent();
i++;
selectNode.add(new DefaultMutableTreeNode("" + i));
}
});
tree.setPreferredSize(new Dimension(100, 300));
JScrollPane scrollPane = new JScrollPane(tree);
this.add(scrollPane);
}
}
/**
* 最下面层模块，继承JPanel,初始化内容为进度条，并由定时器控制
* JPanel--+
* --JProcessBar --Timer
*/
class BottomPanel
extends JPanel {
private JProgressBar pb;
public BottomPanel() {
pb = new JProgressBar();
pb.setPreferredSize(new Dimension(680, 20));
// 设置定时器，用来控制进度条的处理
Timer time = new Timer(1, new ActionListener() {
int counter = 0;
public void actionPerformed(ActionEvent e) {
counter++;
pb.setValue(counter);
Timer t = (Timer) e.getSource();
// 如果进度条达到最大值重新开发计数
if (counter == pb.getMaximum()) {
t.stop();
counter = 0;
t.start();
}
}
});
time.start();
pb.setStringPainted(true);
pb.setMinimum(0);
pb.setMaximum(1000);
pb.setBackground(Color.white);
pb.setForeground(Color.red);
this.add(pb);
}
/**
* 设置进度条的数据模型
*/
public void setProcessBar(BoundedRangeModel rangeModel) {
pb.setModel(rangeModel);
}
}
/**
* 最右边模块，继承JPanel,初始化各种按钮
* JPanel--+
* --JButton --JToggleButton -- JList -- JCombox --JCheckBox ....
*/
class RightPanel
extends JPanel {
public RightPanel() {
this.setLayout(new GridLayout(8, 1));
// 初始化各种按钮
JCheckBox checkBox = new JCheckBox("复选按钮");
JButton button = new JButton("打开文件");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser file = new JFileChooser();
int result = file.showOpenDialog(new JPanel());
if (result == file.APPROVE_OPTION) {
String fileName = file.getSelectedFile().getName();
String dir = file.getCurrentDirectory().toString();
JOptionPane.showConfirmDialog(null, dir + "\\" + fileName, "选择的文件",
JOptionPane.YES_OPTION);
}
}
});
JToggleButton toggleButton = new JToggleButton("双态按钮");
ButtonGroup buttonGroup = new ButtonGroup();
JRadioButton radioButton1 = new JRadioButton("单选按钮1", false);
JRadioButton radioButton2 = new JRadioButton("单选按钮2", false);
// 组合框的处理
JComboBox comboBox = new JComboBox();
comboBox.setToolTipText("点击下拉列表增加选项");
comboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JComboBox comboBox = (JComboBox) e.getSource();
comboBox.addItem("程序员");
comboBox.addItem("分析员");
}
});
// 列表框的处理
DefaultListModel litem = new DefaultListModel();
litem.addElement("香蕉");
litem.addElement("水果");
JList list = new JList(litem);
list.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
JList l = (JList) e.getSource();
Object s = l.getSelectedValue();
JOptionPane.showMessageDialog(null, s, "消息框", JOptionPane.YES_OPTION);
}
});
// 增加按钮组
buttonGroup.add(radioButton1);
buttonGroup.add(radioButton2);
// 增加各种按钮到JPanel中显示
add(button);
add(toggleButton);
add(checkBox);
add(radioButton1);
add(radioButton2);
add(comboBox);
add(list);
this.setBorder(new EtchedBorder(EtchedBorder.LOWERED, Color.LIGHT_GRAY,
Color.blue));
}
}
/**
* 中间层模块，继承JPanel,初始化页签,并在页签中设置文本区，表格,
* 文本区上下用分隔条分隔
* JPanel--+
* -JTabbedPane--+
* --Draw --JTable -JTextAreas -JText --JPopupMenu
*/
class CenterPanel
extends JPanel {
public CenterPanel() {
JTabbedPane tab = new JTabbedPane(JTabbedPane.TOP);
JTextField textField = new JTextField("文本域,点击打开<文件按钮>可选择文件");
textField.setActionCommand("textField");
JTextPane textPane = new JTextPane();
textPane.setCursor(new Cursor(Cursor.TEXT_CURSOR));
textPane.setText("编辑器,试着点击文本区，试着拉动分隔条。");
textPane.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
JTextPane textPane = (JTextPane) e.getSource();
textPane.setText("编辑器点击命令成功");
}
});
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,
textField, textPane);
JTable table = new JTable(10, 10);
JPanel pane = new JPanel();
pane.add(table.getTableHeader(), BorderLayout.NORTH);
pane.add(table);
tab.addTab("文本演示", splitPane);
tab.addTab("表格演示", pane);
tab.setPreferredSize(new Dimension(500, 600));
this.add(tab);
this.setEnabled(true);
}
}
public static void main(String args[]) {
new SwingTest();
}
}
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