Swing, 在JTable中显示JProgressBar Demo

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

public class ProgressBarInTableDemo extends JPanel {

    private BarModel model = new BarModel();
    private JTable tbl = new JTable(model);
    private JScrollPane jsp = new JScrollPane();
    private JButton btn = new JButton("Add Task");
    private static final int BAR_WIDTH = 200;
    private static final int BAR_HEIGHT = 40;

    public ProgressBarInTableDemo() {
        super(new BorderLayout());
        initComponents();
    }

    private void initComponents() {
        tbl.setRowHeight(BAR_HEIGHT);
        TableColumn barColumn = tbl.getColumnModel().getColumn(1);
        barColumn.setCellRenderer(new BarRenderer());
        barColumn.setMinWidth(BAR_WIDTH);
        barColumn.setMaxWidth(BAR_WIDTH);
        jsp.setViewportView(tbl);
        add(jsp, BorderLayout.CENTER);
        btn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                new Task(String.format("%d", e.getWhen()), e.getWhen() % 2 == 0).start();
            }
        });
        add(btn, BorderLayout.NORTH);
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("BarTable");
        frame.setContentPane(new ProgressBarInTableDemo());
        frame.setMinimumSize(new Dimension(600, 400));
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

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

    class Task extends Thread {
        private String taskName;
        private boolean nothing;
        private int index;

        public Task(String taskName, boolean nothing) {
            this.taskName = taskName;
            this.nothing = nothing;
        }

        @Override
        public void run() {
            final Integer barValue = new Integer(0);
            SwingUtilities.invokeLater(new Runnable() {
                @Override
                public void run() {
                    model.addTask(taskName, barValue, nothing);
                }
            });
            for (index = 0; index < 100; index++) {
                try {
                    Thread.sleep((long) (Math.random() * Math.random() * 1000 + 1));
                } catch (InterruptedException ex) {
                    Logger.getLogger(ProgressBarInTableDemo.class.getName()).log(Level.SEVERE, null, ex);
                }
                SwingUtilities.invokeLater(new Runnable() {
                    @Override
                    public void run() {
                        model.updateBarValue(taskName, new Integer(index));
                    }
                });
            }
            SwingUtilities.invokeLater(new Runnable() {
                @Override
                public void run() {
                    model.removeTask(taskName);
                }
            });
        }
    }
}

class BarRenderer extends JProgressBar implements TableCellRenderer {

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        setStringPainted(true);
        setValue(((Integer) value).intValue());
        return this;
    }
}

class BarModel extends DefaultTableModel {
    private static String[] columnNames = {"Task Name", "ProgressBar", "Nothing"};
    public BarModel(){
        super(columnNames, 0);
    }

    public void addTask(String taskName, Integer barValue, boolean xx) {
        int row = 0;
        while (row < getRowCount()) {
            if (taskName.equals(getValueAt(row, 0))) {
                return;
            }
            row++;
        }
        Object[] rowData = {taskName, barValue, xx};
        addRow(rowData);
    }

    public void updateBarValue(String taskName, Integer newValue) {
        int row = 0;
        while (row < getRowCount()) {
            if (taskName.equals((String) getValueAt(row, 0))) {
                setValueAt(newValue, row, 1);//0:taskname 1: progressbar 
                break;
            }
            row++;
        }
    }

    public void removeTask(String taskName) {
        int row = 0;
        while (row < getRowCount()) {
            if (taskName.equals((String) getValueAt(row, 0))) {
                removeRow(row);
                break;
            }
            row++;
        }
    }

    public Class getClass(int columnIndex) {
        return getValueAt(0, columnIndex).getClass();
    }

    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        if (columnIndex == 2) {
            return true;
        }
        return false;
    }
}