package Editor.Utils;
import java.awt.Component;
import java.awt.event.*;
import java.awt.AWTEvent;
import javax.swing.*;
import javax.swing.event.*;
import java.util.EventObject;
import java.io.Serializable;
/**
* @version %I% %G%
*
* A base class for CellEditors, providing default implementations for all
* methods in the CellEditor interface and support for managing a series
* of listeners.
*
* @author Philip Milne
*/
public class AbstractCellEditor implements CellEditor {
protected EventListenerList listenerList = new EventListenerList();
public Object getCellEditorValue() { return null; }
public boolean isCellEditable(EventObject e) { return true; }
public boolean shouldSelectCell(EventObject anEvent) { return false; }
public boolean stopCellEditing() { return true; }
public void cancelCellEditing() {}
public void addCellEditorListener(CellEditorListener l) {
listenerList.add(CellEditorListener.class, l);
}
public void removeCellEditorListener(CellEditorListener l) {
listenerList.remove(CellEditorListener.class, l);
}
/**
* Notify all listeners that have registered interest for
* notification on this event type.
* @see EventListenerList
*/
protected void fireEditingStopped() {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length-2; i>=0; i-=2) {
if (listeners[i]==CellEditorListener.class) {
((CellEditorListener)listeners[i+1]).editingStopped(new ChangeEvent(this));
}
}
}
/**
* Notify all listeners that have registered interest for
* notification on this event type.
* @see EventListenerList
*/
protected void fireEditingCanceled() {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length-2; i>=0; i-=2) {
if (listeners[i]==CellEditorListener.class) {
((CellEditorListener)listeners[i+1]).editingCanceled(new ChangeEvent(this));
}
}
}
}