import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.ScrollPaneLayout;
import javax.swing.SwingConstants;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class GlobalVari_6 extends JFrame {
    private static final long serialVersionUID = 1L;

    private static double select = 0;
    private static int rowIndex = 0;

    public JTable table = null;

    // 表格方法使用
    public GlobalVari_6() {
        init();

        this.setTitle("Global Variables");
        this.setSize(new Dimension(650, 400));
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.setVisible(true);
        // this.setResizable(false);
    }

    private void init() {
        Vector<String> colHeader = new Vector<String>();

        Vector<Vector<String>> dataVec = new Vector<Vector<String>>();

        colHeader.add("  Variable");
        colHeader.add("Value  ");
        colHeader.add("Time  ");

        table = new JTable(dataVec, colHeader) {
            private static final long serialVersionUID = 1L;

            public boolean isCellEditable(int row, int column) {
                if (column > 1) {
                    return false;
                } else {
                    return true;
                }
            }
        };

        // 2设置表头行高
        table.getTableHeader().setPreferredSize(new Dimension(0, 20));
        // 3设置表内容行高
        table.setRowHeight(20);
        // 4设置单选模式
        table.getSelectionModel().setSelectionMode(
                ListSelectionModel.SINGLE_SELECTION);
        // 5设置单元格不可拖动
        table.getTableHeader().setReorderingAllowed(false);
        // 6设置不可改变列宽
        table.getTableHeader().setResizingAllowed(false);
        // 7设置列宽
        table.getColumnModel().getColumn(0).setPreferredWidth(95);
        table.getColumnModel().getColumn(1).setPreferredWidth(55);
        table.getColumnModel().getColumn(2).setPreferredWidth(30);
        // 注意索引越界

        DefaultTableCellRenderer right = new DefaultTableCellRenderer();
        // right.setHorizontalAlignment(JLabel.RIGHT);
        right.setHorizontalAlignment(SwingConstants.RIGHT);
        table.getColumnModel().getColumn(1).setCellRenderer(right);
        table.getColumnModel().getColumn(2).setCellRenderer(right);
        // table.getColumn(table.getColumnName(1)).setHeaderRenderer(right);
        // table.getTableHeader().setDefaultRenderer(new HeaderRenderer(table));
        ((DefaultTableCellRenderer) table.getTableHeader().getDefaultRenderer())
                .setHorizontalAlignment(JLabel.RIGHT);

        TableColumn column = table.getColumnModel().getColumn(0);
        MultiLineHeaderRenderer headerRenderer = new MultiLineHeaderRenderer(
                SwingConstants.LEFT, SwingConstants.BOTTOM);
        column.setHeaderRenderer(headerRenderer);

        /*
         * column = table.getColumnModel().getColumn(1); headerRenderer = new
         * MultiLineHeaderRenderer( SwingConstants.LEFT, SwingConstants.BOTTOM);
         * column.setHeaderRenderer(headerRenderer);
         */

        final JButton buttonAdd = new JButton("Add");
        final JButton buttonDel = new JButton("Delete");
        final JButton buttonCls = new JButton("Close");

        rowIndex = table.getSelectedRow();
        System.out.println("index:" + rowIndex);
        // 监听事件
        table.getSelectionModel().addListSelectionListener(
                new ListSelectionListener() {
                    public void valueChanged(ListSelectionEvent e) {
                        if (e.getValueIsAdjusting()) {// 连续操作
                            rowIndex = table.getSelectedRow();
                            if (rowIndex != -1) {
                                System.out.println("表格行被选中" + rowIndex);
                                buttonDel.setEnabled(true);
                                select = 1;
                            }
                        }
                    }
                });

        JScrollPane scrollPane = new JScrollPane();
        scrollPane.setLayout(new ScrollPaneLayout());
        scrollPane.setViewportView(table);
        scrollPane.setBounds(5, 5, 515, 350);
        this.getContentPane().add(scrollPane);

        buttonAdd.setEnabled(true);
        buttonDel.setEnabled(false);
        buttonCls.setEnabled(true);

        JPanel panel = new JPanel();
        panel.setBounds(520, 5, 10, 350);
        this.getContentPane().add(panel);

        panel.setLayout(null);
        panel.add(buttonAdd);
        buttonAdd.setSize(100, 22);
        buttonAdd.setLocation(530, 6);
        panel.add(buttonDel);
        buttonDel.setSize(100, 22);
        buttonDel.setLocation(530, 40);
        panel.add(buttonCls);
        buttonCls.setSize(100, 22);
        buttonCls.setLocation(530, 322);

        buttonAdd.addMouseListener(new MouseListener() {
            public void mouseClicked(MouseEvent e) {
                DefaultTableModel model = (DefaultTableModel) table.getModel();
                int rownum = table.getRowCount() + 1;
                boolean exist = true;
                for (int i = 0; i < model.getRowCount(); i++) {
                    if (model.getValueAt(i, 0).equals("gvar" + rownum)) {
                        exist = false;
                        break;
                    }
                }

                if (exist == true)
                    model.addRow(new Object[] {
                            "gvar" + rownum,
                            "",
                            new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
                                    .format(new Date()) });
            }

            public void mousePressed(MouseEvent e) {
            }

            public void mouseReleased(MouseEvent e) {
            }

            public void mouseEntered(MouseEvent e) {
            }

            public void mouseExited(MouseEvent e) {
            }
        });

        buttonDel.addMouseListener(new MouseListener() {
            public void mouseClicked(MouseEvent e) {
                if (select == 1) {
                    DefaultTableModel model = (DefaultTableModel) table
                            .getModel();
                    model.removeRow(rowIndex);
                    select = 0;
                    buttonDel.setEnabled(false);
                }
            }

            public void mousePressed(MouseEvent e) {
            }

            public void mouseReleased(MouseEvent e) {
            }

            public void mouseEntered(MouseEvent e) {
            }

            public void mouseExited(MouseEvent e) {
            }
        });

        buttonCls.addMouseListener(new MouseListener() {
            public void mouseClicked(MouseEvent e) {
                setVisible(false);
            }

            public void mousePressed(MouseEvent e) {
            }

            public void mouseReleased(MouseEvent e) {
            }

            public void mouseEntered(MouseEvent e) {
            }

            public void mouseExited(MouseEvent e) {
            }
        });

        this.pack();
    }
    
    public static void main(String[] args) {
        new GlobalVari_6();
    }
}