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/* (swing1.1.1) */
//package jp.gr.java_conf.tame.swing.examples;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
/**
* @version 1.2 08/13/99
*/
public class JRadioButtonTableExample2 extends JFrame {
public JRadioButtonTableExample2(){
super( "JRadioButtonTable Example" );
DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(
new Object[][]{
{"1",new Integer(-1)},
{"2",new Integer(-1)},
{"3",new Integer(0)},
{"4",new Integer(1)},
{"5",new Integer(2)}},
new Object[]{"Question","Answer"});
JTable table = new JTable(dm);
String[] answer = {"A","B","C"};
table.getColumn("Answer").setCellRenderer(new RadioButtonRenderer(answer));
table.getColumn("Answer").setCellEditor(new RadioButtonEditor(new JCheckBox(),new RadioButtonPanel(answer)));
JScrollPane scroll = new JScrollPane(table);
getContentPane().add( scroll );
}
// Cell base
class RadioButtonPanel extends JPanel {
JRadioButton[] buttons;
RadioButtonPanel(String[] str)
{
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
buttons = new JRadioButton[str.length];
for (int i=0; i<buttons.length; i++)
{
buttons[i] = new JRadioButton(str[i]);
buttons[i].setFocusPainted(false);
add(buttons[i]);
}
}
public void setSelectedIndex(int index)
{
for(int i=0;i<buttons.length;i++)
{
buttons[i].setSelected(i == index);
}
}
public int getSelectedIndex() {
for (int i=0; i<buttons.length; i++) {
if (buttons[i].isSelected()) {
return i;
}
}
return -1;
}
public JRadioButton[] getButtons() {
return buttons;
}
}
class RadioButtonRenderer extends RadioButtonPanel
implements TableCellRenderer {
RadioButtonRenderer(String[] strs) {
super(strs);
}
public Component getTableCellRendererComponent(JTable table, Object value,boolean isSelected, boolean hasFocus, int row, int column)
{
if (value instanceof Integer)
{
setSelectedIndex(((Integer)value).intValue());
}
return this;
}
}
class RadioButtonEditor extends DefaultCellEditor implements ItemListener
{
RadioButtonPanel panel;
public RadioButtonEditor(JCheckBox checkBox,RadioButtonPanel panel)
{
super(checkBox);
this.panel = panel;
ButtonGroup buttonGroup = new ButtonGroup();
JRadioButton[] buttons = panel.getButtons();
for (int i=0; i<buttons.length; i++)
{
buttonGroup.add(buttons[i]);
buttons[i].addItemListener(this);
}
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column)
{
if (value instanceof Integer) {
panel.setSelectedIndex(((Integer)value).intValue());
}
return panel;
}
public Object getCellEditorValue() {
return new Integer(panel.getSelectedIndex());
}
public void itemStateChanged(ItemEvent e) {
super.fireEditingStopped();
}
}
public static void main(String[] args)
{
JRadioButtonTableExample2 frame = new JRadioButtonTableExample2();
frame.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
frame.setSize( 230, 140 );
frame.setVisible(true);
}
} |
