import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class AdjustingWidth
{
	JFrame jf = new JFrame("調整表格列寬");
	JMenuBar menuBar = new JMenuBar();
	JMenu adjustModeMenu = new JMenu("調整方式");
	JMenu selectUnitMenu = new JMenu("選擇單元");
	JMenu selectModeMenu = new JMenu("選擇方式");

	//定義5個單選框按鈕，用以控制表格的寬度調整方式
	JRadioButtonMenuItem[] adjustModesItem = new JRadioButtonMenuItem[5];
	//定義3個單選框按鈕，用以控制表格的選擇方式
	JRadioButtonMenuItem[] selectModesItem = new JRadioButtonMenuItem[3];

    JCheckBoxMenuItem rowsItem = new JCheckBoxMenuItem("選擇行");
    JCheckBoxMenuItem columnsItem = new JCheckBoxMenuItem("選擇列");
    JCheckBoxMenuItem cellsItem = new JCheckBoxMenuItem("選擇單元格");
	ButtonGroup adjustBg = new ButtonGroup();
	ButtonGroup selectBg = new ButtonGroup();
	//定義一個int類型的數組，用于保存表格所有的寬度調整方式
	int[] adjustModes = new int[]{
		JTable.AUTO_RESIZE_OFF,
		JTable.AUTO_RESIZE_NEXT_COLUMN,
		JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS,
		JTable.AUTO_RESIZE_LAST_COLUMN,
		JTable.AUTO_RESIZE_ALL_COLUMNS 
	};
	int[] selectModes = new int[]{
		ListSelectionModel.MULTIPLE_INTERVAL_SELECTION ,
		ListSelectionModel.SINGLE_INTERVAL_SELECTION ,
		ListSelectionModel.SINGLE_SELECTION
	};
	JTable table;
	//定義二維數組作為表格數據
	Object[][] tableData = 
	{
		new Object[]{"李清照" , 29 , "女"},
		new Object[]{"蘇格拉底", 56 , "男"},
		new Object[]{"李白", 35 , "男"},
		new Object[]{"弄玉", 18 , "女"},
		new Object[]{"虎頭" , 2 , "男"}
	};
	//定義一維數據作為列標題
	Object[] columnTitle = {"姓名" , "年齡" , "性別"};

	public void init()
	{
		//以二維數組和一維數組來創建一個JTable對象
		table = new JTable(tableData , columnTitle);

		//-----------為窗口安裝設置表格調整方式的菜單-----------
		adjustModesItem[0] = new JRadioButtonMenuItem("只調整表格");
		adjustModesItem[1] = new JRadioButtonMenuItem("只調整下一列");
		adjustModesItem[2] = new JRadioButtonMenuItem("平均調整余下列");
		adjustModesItem[3] = new JRadioButtonMenuItem("只調整最后一列");
		adjustModesItem[4] = new JRadioButtonMenuItem("平均調整所有列");
		menuBar.add(adjustModeMenu);
		for (int i = 0; i < adjustModesItem.length ; i++)
		{
			//默認選中第三個菜單項，即對應表格默認的寬度調整方式
			if (i == 2)
			{
				adjustModesItem[i].setSelected(true);
			}
			adjustBg.add(adjustModesItem[i]);
			adjustModeMenu.add(adjustModesItem[i]);
			final int index = i;
			//為設置調整方式的菜單項添加監聽器
			adjustModesItem[i].addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent evt)
				{
					//如果當前菜單項處于選中狀態，表格使用對應的調整方式
					if (adjustModesItem[index].isSelected())
					{
						table.setAutoResizeMode(adjustModes[index]);
					}
				}
			});
		}
		//-----------為窗口安裝設置表格選擇方式的菜單-----------
		selectModesItem[0] = new JRadioButtonMenuItem("無限制");
		selectModesItem[1] = new JRadioButtonMenuItem("單獨的連續區");
		selectModesItem[2] = new JRadioButtonMenuItem("單選");
		menuBar.add(selectModeMenu);
		for (int i = 0; i < selectModesItem.length ; i++)
		{
			//默認選中第一個菜單項，即對應表格默認的選擇方式
			if (i == 0)
			{
				selectModesItem[i].setSelected(true);
			}
			selectBg.add(selectModesItem[i]);
			selectModeMenu.add(selectModesItem[i]);
			final int index = i;
			//為設置選擇方式的菜單項添加監聽器
			selectModesItem[i].addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent evt)
				{
					//如果當前菜單項處于選中狀態，表格使用對應的選擇方式
					if (selectModesItem[index].isSelected())
					{
						table.getSelectionModel().setSelectionMode(selectModes[index]);
					}
				}
			});
		}
		menuBar.add(selectUnitMenu);
		//-----------為窗口安裝設置表格選擇單元的菜單-----------
		rowsItem.setSelected(table.getRowSelectionAllowed());
		columnsItem.setSelected(table.getColumnSelectionAllowed());
		cellsItem.setSelected(table.getCellSelectionEnabled());

		rowsItem.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent event)
			{
				table.clearSelection();
				//如果該菜單項處于選中狀態，設置表格的選擇單元是行
				table.setRowSelectionAllowed(rowsItem.isSelected());
				//如果選擇行、選擇列同時被選中，其實質是選擇單元格
				cellsItem.setSelected(table.getCellSelectionEnabled());
			}
		});
		selectUnitMenu.add(rowsItem);
		columnsItem.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent event)
			{
				table.clearSelection();
				//如果該菜單項處于選中狀態，設置表格的選擇單元是列
				table.setColumnSelectionAllowed(columnsItem.isSelected());
				//如果選擇行、選擇列同時被選中，其實質是選擇單元格
				cellsItem.setSelected(table.getCellSelectionEnabled());
			}
		});
		selectUnitMenu.add(columnsItem);
		cellsItem.addActionListener(new	ActionListener()
		{
			public void actionPerformed(ActionEvent event)
			{
				table.clearSelection();
				//如果該菜單項處于選中狀態，設置表格的選擇單元是單元格
				table.setCellSelectionEnabled(cellsItem.isSelected());
				//該選項的改變會同時影響選擇行、選擇列兩個菜單
				rowsItem.setSelected(table.getRowSelectionAllowed());
				columnsItem.setSelected(table.getColumnSelectionAllowed());
			}
		});
		selectUnitMenu.add(cellsItem);

		jf.setJMenuBar(menuBar);
		//分別獲取表格的三個表格列，并設置三列的最小寬度，最佳寬度和最大寬度
		TableColumn nameColumn = table.getColumn(columnTitle[0]);
		nameColumn.setMinWidth(40);
		TableColumn ageColumn = table.getColumn(columnTitle[1]);
		ageColumn.setPreferredWidth(50);
		TableColumn genderColumn = table.getColumn(columnTitle[2]);
		genderColumn.setMaxWidth(50);


		//將JTable對象放在JScrollPane中，并將該JScrollPane放在窗口中顯示出來
		jf.add(new JScrollPane(table));
		System.out.println(table.getModel());
		jf.pack();
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jf.setVisible(true);
	}

    public static void main(String[] args) 
    {
		new AdjustingWidth().init();
    }
}