AbstractCellEditor.java :  » Swing-Library » OpenSwing-2.1.8 » org » openswing » swing » tree » client » Java Open Source

package org.openswing.swing.tree.client;

import java.util.*;

import javax.swing.*;
import javax.swing.event.*;

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));
      }
  }
    }
}