Each Row with different Editor Example : Grid Table « Swing Components « Java

Each Row with different Editor Example

Each Row with different Editor Example
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1.1) */

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.EventObject;
import java.util.Hashtable;

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.event.CellEditorListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;

 * @version 1.1 09/09/99
public class EachRowEditorExample extends JFrame {
  public EachRowEditorExample() {
    super("EachRow Editor Example");

    DefaultTableModel dm = new DefaultTableModel();
    dm.setDataVector(new Object[][] { { "Name", "MyName" },
        { "Gender", "Male" } }, new Object[] { "Column1", "Column2" });

    JTable table = new JTable(dm);
    JComboBox comboBox = new JComboBox();
    comboBox.addComponentListener(new ComponentAdapter() {
      public void componentShown(ComponentEvent e) {
        final JComponent c = (JComponent) e.getSource();
        SwingUtilities.invokeLater(new Runnable() {
          public void run() {
            if (c instanceof JComboBox) {

    EachRowEditor rowEditor = new EachRowEditor(table);
    rowEditor.setEditorAt(1, new DefaultCellEditor(comboBox));

    JScrollPane scroll = new JScrollPane(table);
    getContentPane().add(scroll, BorderLayout.CENTER);
    setSize(400, 100);

  public static void main(String[] args) {
    EachRowEditorExample frame = new EachRowEditorExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {

 * each row TableCellEditor
 * @version 1.1 09/09/99
 * @author Nobuo Tamemasa

class EachRowEditor implements TableCellEditor {
  protected Hashtable editors;

  protected TableCellEditor editor, defaultEditor;

  JTable table;

   * Constructs a EachRowEditor. create default editor
   * @see TableCellEditor
   * @see DefaultCellEditor
  public EachRowEditor(JTable table) {
    this.table = table;
    editors = new Hashtable();
    defaultEditor = new DefaultCellEditor(new JTextField());

   * @param row
   *            table row
   * @param editor
   *            table cell editor
  public void setEditorAt(int row, TableCellEditor editor) {
    editors.put(new Integer(row), editor);

  public Component getTableCellEditorComponent(JTable table, Object value,
      boolean isSelected, int row, int column) {
    //editor = (TableCellEditor)editors.get(new Integer(row));
    //if (editor == null) {
    //  editor = defaultEditor;
    return editor.getTableCellEditorComponent(table, value, isSelected,
        row, column);

  public Object getCellEditorValue() {
    return editor.getCellEditorValue();

  public boolean stopCellEditing() {
    return editor.stopCellEditing();

  public void cancelCellEditing() {

  public boolean isCellEditable(EventObject anEvent) {
    selectEditor((MouseEvent) anEvent);
    return editor.isCellEditable(anEvent);

  public void addCellEditorListener(CellEditorListener l) {

  public void removeCellEditorListener(CellEditorListener l) {

  public boolean shouldSelectCell(EventObject anEvent) {
    selectEditor((MouseEvent) anEvent);
    return editor.shouldSelectCell(anEvent);

  protected void selectEditor(MouseEvent e) {
    int row;
    if (e == null) {
      row = table.getSelectionModel().getAnchorSelectionIndex();
    } else {
      row = table.rowAtPoint(e.getPoint());
    editor = (TableCellEditor) editors.get(new Integer(row));
    if (editor == null) {
      editor = defaultEditor;


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