Java Source - Chèn JRaioButton vào ô của JTable. (Insert JRaioButton to cells of JTable.)

Một mã nguồn demo về cách chèn JRaioButton vào cell của JTable trong java.
The following code add JCheckBox as buttongroup in JTable columns.





Mã nguồn - Source Code

//Example modified from http://www.crionics.com/products/opensource/faq/swing_ex/JTableExamples2.html
/**
 * @version 1.0 12/03/98
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;

class RadioButtonRenderer implements TableCellRenderer {

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {
        if (value == null) {
            return null;
        }
        return (Component) value;
    }
}

class RadioButtonEditor extends DefaultCellEditor
        implements ItemListener {

    private JRadioButton button;

    public RadioButtonEditor(JCheckBox checkBox) {
        super(checkBox);
    }

    @Override
    public Component getTableCellEditorComponent(JTable table, Object value,
            boolean isSelected, int row, int column) {
        if (value == null) {
            return null;
        }
        button = (JRadioButton) value;
        button.addItemListener(this);
        return (Component) value;
    }

    @Override
    public Object getCellEditorValue() {
        button.removeItemListener(this);
        return button;
    }

    @Override
    public void itemStateChanged(ItemEvent e) {
        super.fireEditingStopped();
    }
}

public class JRadioButtonTableExample extends JFrame {

    public JRadioButtonTableExample() {
        super("JRadioButtonTable Example");
        UIDefaults ui = UIManager.getLookAndFeel().getDefaults();
        UIManager.put("RadioButton.focus", ui.getColor("control"));

        DefaultTableModel dm = new DefaultTableModel();
        dm.setDataVector(
                new Object[][]{
            {"Group 1", new JRadioButton("A")},
            {"Group 1", new JRadioButton("B")},
            {"Group 1", new JRadioButton("C")},
            {"Group 2", new JRadioButton("a")},
            {"Group 2", new JRadioButton("b")}},
                new Object[]{"String", "JRadioButton"});

        JTable table = new JTable(dm) {
            @Override
            public void tableChanged(TableModelEvent e) {
                super.tableChanged(e);
                repaint();
            }
        };
        ButtonGroup group1 = new ButtonGroup();
        group1.add((JRadioButton) dm.getValueAt(0, 1));
        group1.add((JRadioButton) dm.getValueAt(1, 1));
        group1.add((JRadioButton) dm.getValueAt(2, 1));
        ButtonGroup group2 = new ButtonGroup();
        group2.add((JRadioButton) dm.getValueAt(3, 1));
        group2.add((JRadioButton) dm.getValueAt(4, 1));
        table.getColumn("JRadioButton").setCellRenderer(new RadioButtonRenderer());
        table.getColumn("JRadioButton").setCellEditor(new RadioButtonEditor(new JCheckBox()));
        JScrollPane scroll = new JScrollPane(table);
        getContentPane().add(scroll);
        setSize(200, 140);
        setVisible(true);
    }

    public static void main(String[] args) {
        JRadioButtonTableExample frame = new JRadioButtonTableExample();
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
}

Kết quả - Result