Multiple Component Table: Checkbox and Combobox
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1beta3) */
import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.EventObject;
import javax.swing.DefaultCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.event.CellEditorListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
/**
* @version 1.0 11/09/98
*/
class ComboString {
String str;
ComboString(String str) {
this.str = str;
}
public String toString() {
return str;
}
}
class MultiRenderer extends DefaultTableCellRenderer {
JCheckBox checkBox = new JCheckBox();
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (value instanceof Boolean) { // Boolean
checkBox.setSelected(((Boolean) value).booleanValue());
checkBox.setHorizontalAlignment(JLabel.CENTER);
return checkBox;
}
String str = (value == null) ? "" : value.toString();
return super.getTableCellRendererComponent(table, str, isSelected,
hasFocus, row, column);
}
}
class MultiEditor implements TableCellEditor {
private final static int COMBO = 0;
private final static int BOOLEAN = 1;
private final static int STRING = 2;
private final static int NUM_EDITOR = 3;
DefaultCellEditor[] cellEditors;
JComboBox comboBox;
int flg;
public MultiEditor() {
cellEditors = new DefaultCellEditor[NUM_EDITOR];
comboBox = new JComboBox();
comboBox.addItem("true");
comboBox.addItem("false");
cellEditors[COMBO] = new DefaultCellEditor(comboBox);
JCheckBox checkBox = new JCheckBox();
//checkBox.setOpaque( true );
checkBox.setHorizontalAlignment(JLabel.CENTER);
cellEditors[BOOLEAN] = new DefaultCellEditor(checkBox);
JTextField textField = new JTextField();
cellEditors[STRING] = new DefaultCellEditor(textField);
flg = NUM_EDITOR; // nobody
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (value instanceof ComboString) { // ComboString
flg = COMBO;
String str = (value == null) ? "" : value.toString();
return cellEditors[COMBO].getTableCellEditorComponent(table, str,
isSelected, row, column);
} else if (value instanceof Boolean) { // Boolean
flg = BOOLEAN;
return cellEditors[BOOLEAN].getTableCellEditorComponent(table,
value, isSelected, row, column);
} else if (value instanceof String) { // String
flg = STRING;
return cellEditors[STRING].getTableCellEditorComponent(table,
value, isSelected, row, column);
}
return null;
}
public Object getCellEditorValue() {
switch (flg) {
case COMBO:
String str = (String) comboBox.getSelectedItem();
return new ComboString(str);
case BOOLEAN:
case STRING:
return cellEditors[flg].getCellEditorValue();
default:
return null;
}
}
public Component getComponent() {
return cellEditors[flg].getComponent();
}
public boolean stopCellEditing() {
return cellEditors[flg].stopCellEditing();
}
public void cancelCellEditing() {
cellEditors[flg].cancelCellEditing();
}
public boolean isCellEditable(EventObject anEvent) {
return cellEditors[flg].isCellEditable(anEvent);
}
public boolean shouldSelectCell(EventObject anEvent) {
return cellEditors[flg].shouldSelectCell(anEvent);
}
public void addCellEditorListener(CellEditorListener l) {
cellEditors[flg].addCellEditorListener(l);
}
public void removeCellEditorListener(CellEditorListener l) {
cellEditors[flg].removeCellEditorListener(l);
}
public void setClickCountToStart(int n) {
cellEditors[flg].setClickCountToStart(n);
}
public int getClickCountToStart() {
return cellEditors[flg].getClickCountToStart();
}
}
public class MultiComponentTable extends JFrame {
public MultiComponentTable() {
super("MultiComponent Table");
DefaultTableModel dm = new DefaultTableModel() {
public boolean isCellEditable(int row, int column) {
if (column == 0) {
return true;
}
return false;
}
};
dm.setDataVector(
new Object[][] {
{ new ComboString("true"), "ComboString", "JLabel",
"JComboBox" },
{ new ComboString("false"), "ComboString", "JLabel",
"JComboBox" },
{ new Boolean(true), "Boolean", "JCheckBox",
"JCheckBox" },
{ new Boolean(false), "Boolean", "JCheckBox",
"JCheckBox" },
{ "true", "String", "JLabel", "JTextField" },
{ "false", "String", "JLabel", "JTextField" } },
new Object[] { "Component", "Data", "Renderer", "Editor" });
JTable table = new JTable(dm);
table.getColumn("Component").setCellRenderer(new MultiRenderer());
table.getColumn("Component").setCellEditor(new MultiEditor());
JScrollPane scroll = new JScrollPane(table);
getContentPane().add(scroll);
setSize(400, 160);
setVisible(true);
}
public static void main(String[] args) {
MultiComponentTable frame = new MultiComponentTable();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
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