An Editor for the Gender Column : JTable Renderer Editor « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JTable Renderer Editor

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.EventObject;
import java.util.GregorianCalendar;

import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.event.EventListenerList;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

class GenderEditor extends JComboBox implements TableCellEditor {

  protected EventListenerList listenerList = new EventListenerList();

  protected ChangeEvent changeEvent = new ChangeEvent(this);

  public GenderEditor() {
    super();
    addItem("Male");
    addItem("Female");
    addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        fireEditingStopped();
      }
    });
  }

  public void addCellEditorListener(CellEditorListener listener) {
    listenerList.add(CellEditorListener.class, listener);
  }

  public void removeCellEditorListener(CellEditorListener listener) {
    listenerList.remove(CellEditorListener.class, listener);
  }

  protected void fireEditingStopped() {
    CellEditorListener listener;
    Object[] listeners = listenerList.getListenerList();
    for (int i = 0; i < listeners.length; i++) {
      if (listeners[i] == CellEditorListener.class) {
        listener = (CellEditorListener) listeners[i + 1];
        listener.editingStopped(changeEvent);
      }
    }
  }

  protected void fireEditingCanceled() {
    CellEditorListener listener;
    Object[] listeners = listenerList.getListenerList();
    for (int i = 0; i < listeners.length; i++) {
      if (listeners[i] == CellEditorListener.class) {
        listener = (CellEditorListener) listeners[i + 1];
        listener.editingCanceled(changeEvent);
      }
    }
  }

  public void cancelCellEditing() {
    fireEditingCanceled();
  }

  public boolean stopCellEditing() {
    fireEditingStopped();
    return true;
  }

  public boolean isCellEditable(EventObject event) {
    return true;
  }

  public boolean shouldSelectCell(EventObject event) {
    return true;
  }

  public Object getCellEditorValue() {
    return new Boolean(getSelectedIndex() == 0 ? true : false);
  }

  public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
      int row, int column) {
    boolean isMale = ((Boolean) value).booleanValue();
    setSelectedIndex(isMale ? 0 : 1);
    return this;
  }
}

public class TableCellEditorJComboBox extends JFrame {
  protected JTable table;

  public static void main(String[] args) {
    TableCellEditorJComboBox stt = new TableCellEditorJComboBox();
    stt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    stt.setSize(400, 200);
    stt.setVisible(true);
  }

  public TableCellEditorJComboBox() {
    Container pane = getContentPane();
    pane.setLayout(new BorderLayout());
    TableValues tv = new TableValues();
    table = new JTable(tv);
    TableColumnModel tcm = table.getColumnModel();
    TableColumn tc = tcm.getColumn(TableValues.GENDER);
    tc.setCellEditor(new GenderEditor());
    JScrollPane jsp = new JScrollPane(table);
    pane.add(jsp, BorderLayout.CENTER);
  }

}

class TableValues extends AbstractTableModel {

  public final static int FIRST_NAME = 0;

  public final static int LAST_NAME = 1;

  public final static int DATE_OF_BIRTH = 2;

  public final static int ACCOUNT_BALANCE = 3;

  public final static int GENDER = 4;

  public final static boolean GENDER_MALE = true;

  public final static boolean GENDER_FEMALE = false;

  public Object[][] values = {
      { "C", "A", new GregorianCalendar(1962, Calendar.FEBRUARY, 20).getTime(), new Float(1.67),
          new Boolean(GENDER_MALE) },
      { "J", "A", new GregorianCalendar(1987, Calendar.JANUARY, 6).getTime(), new Float(2.78),
          new Boolean(GENDER_MALE) },
      { "J", "A", new GregorianCalendar(1989, Calendar.AUGUST, 31).getTime(), new Float(3.89),
          new Boolean(GENDER_FEMALE) },
      { "E", "K", new GregorianCalendar(1945, Calendar.JANUARY, 16).getTime(), new Float(-4.70),
          new Boolean(GENDER_FEMALE) },
      { "B", "S", new GregorianCalendar(1907, Calendar.AUGUST, 2).getTime(), new Float(5.00),
          new Boolean(GENDER_FEMALE) } };

  public int getRowCount() {
    return values.length;
  }

  public boolean isCellEditable(int rowIndex, int columnIndex) {
    return true;
  }

  public int getColumnCount() {
    return values[0].length;
  }

  public Object getValueAt(int row, int column) {
    return values[row][column];
  }

}

14.60.JTable Renderer Editor
	14.60.1.	Get Default cell Renderer
	14.60.2.	Get Default Cell Editor
	14.60.3.	Default Editors and Renderers
	14.60.4.	Rendering Table Cells: To install the renderer as the default renderer for the JTable for Object.class
	14.60.5.	implements TableCellRenderer
	14.60.6.	extends DefaultCellEditor
	14.60.7.	Cell Renderer for the Gender Column
	14.60.8.	Demonstrates the editable property of Swing tables.
	14.60.9.	An Editor for the Gender Column
	14.60.10.	ColorChooserEditor
	14.60.11.	Using a JComboBox in a Cell in a JTable Component
	14.60.12.	Editing Table Cells: JComboBox As Table Cell Renderer
	14.60.13.	Using a List JSpinner as a Cell Editor in a JTable Component
	14.60.14.	Using default Boolean value cell editor and renderer
	14.60.15.	Creating a Class-Based Custom Cell Renderer in a JTable Component
	14.60.16.	Creating a Custom Cell Renderer in a JTable Component
	14.60.17.	Preventing Invalid Values in a Cell in a JTable Component
	14.60.18.	Using Built-In Cell Renderers and Editors in a JTable Component
	14.60.19.	Save the current value in the cell being edited and stops the editing process
	14.60.20.	Discard any changes made by the user and stops the editing process