jtree的使用（Swing）

package nc.ui.mte.medicalexp;
import javax.swing.*;import java.awt.*;
import java.awt.event.*;
import javax.swing.tree.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.table.*;/**
* 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();
    // c.setLayout(new BorderLayout())
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 组件大全简体版！"+"<br>天翼.李",icon,JLabel.CENTER);

//JLabel aboutLabel = new JLabel("Swing 组件大全简体版！",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));
// tree.setEnabled(true);
JScrollPane scrollPane = new JScrollPane(tree);
//scrollPane.setSize(100,350);
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");
// textField.setText(""+textPane.getText());
}
});

/*
UpperCaseDocument doc = new Document();
textField.setDocumentsetDocument(doc);
doc.addDocumentListener(new DocumentListener()
{
public void changedUpdate(DocumentEvent e){}
public void removeUpdate(DocumentEvent e){}
public void insertUpdate(DocumentEvent e)
{
Document text = (Document)e.getDocument();
text.setText("复制成功");
}
});
*/

JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,textField,textPane);

JTable table = new JTable(10,10);
//table.showHorizontalLines(true);
//table.showVerticalLines(true);
//table.gridColor(Color.blue);

JPanel pane  = new JPanel();
pane.add(table.getTableHeader(),BorderLayout.NORTH);
pane.add(table);

tab.addTab("文本演示",splitPane);
//tab.addTab(table.getTableHeader());
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[])
{
// 设置主框架属性,此处没有使用，可打开看看效果
//try
//{
// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//}
//catch  (Exception e){}
new SwingTest();
}
}

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jtree的使用（Swing）

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