一个关于JTabel的DefaultCellEditor渲染很棒的例子

import java.awt.Color;
import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

 

import javax.swing.JCheckBox;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.table.DefaultTableModel;

 

import java.awt.Component;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

 

import javax.swing.DefaultCellEditor;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JOptionPane;

 

import javax.swing.UIManager;

import javax.swing.table.TableCellRenderer;

 

public class JButtonTableExample extends JFrame {

 

    public JButtonTableExample() {

        super("JButtonTable Example");

 

        DefaultTableModel dm = new DefaultTableModel();

        dm.setDataVector(new Object[][] { { "button 1", "foo" },

                { "button 2", "bar" } }, new Object[] { "Button", "String" });

 

        JTable table = new JTable(dm);

        table.setOpaque(true);

        table.setBackground(Color.red);

        table.getColumn("Button").setCellRenderer(new ButtonRenderer());

        table.getColumn("Button").setCellEditor(

                new ButtonEditor(new JCheckBox()));

        JScrollPane scroll = new JScrollPane(table);

        getContentPane().add(scroll);

        setSize(400, 100);

        setVisible(true);

    }

 

    public static void main(String[] args) {

        JButtonTableExample frame = new JButtonTableExample();

        frame.addWindowListener(new WindowAdapter() {

            public void windowClosing(WindowEvent e) {

                System.exit(0);

            }

        });

    }

}

 

class ButtonRenderer extends JButton implements TableCellRenderer {

 

    public ButtonRenderer() {

        setOpaque(true);

    }

 

    public Component getTableCellRendererComponent(JTable table, Object value,

            boolean isSelected, boolean hasFocus, int row, int column) {

        if (isSelected) {

            setForeground(table.getSelectionForeground());

            setBackground(table.getSelectionBackground());

        } else {

            setForeground(table.getForeground());

            setBackground(UIManager.getColor("Button.background"));

        }

        setText((value == null) ? "" : value.toString());

        return this;

    }

}

 

class ButtonEditor extends DefaultCellEditor {

    protected JButton button;

    private String label;

    private boolean isPushed;

 

    public ButtonEditor(JCheckBox checkBox) {

        super(checkBox);

        button = new JButton();

        button.setOpaque(true);

        button.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {

                fireEditingStopped();

            }

        });

    }

 

    public Component getTableCellEditorComponent(JTable table, Object value,

            boolean isSelected, int row, int column) {

        if (isSelected) {

            button.setForeground(table.getSelectionForeground());

            button.setBackground(table.getSelectionBackground());

        } else {

            button.setForeground(table.getForeground());

            button.setBackground(table.getBackground());

        }

        label = (value == null) ? "" : value.toString();

        

        button.setText(label);

        isPushed = true;

        return button;

    }

 

    public Object getCellEditorValue() {

        if (isPushed) {

            JOptionPane.showMessageDialog(button, label + ": Ouch!");

        }

       isPushed = false;

        return new String(label);

    }

 

    public boolean stopCellEditing() {

       isPushed = false;

        return super.stopCellEditing();

    }

 

    protected void fireEditingStopped() {

        super.fireEditingStopped();

    }

}