java.fedora.utilities.policyEditor.AbstractCellEditor Maven / Gradle / Ivy

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The Fedora Client is a Java Library that allows API access to a Fedora Repository. The client is typically one part of a full Fedora installation.

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/*
 * -----------------------------------------------------------------------------
 *
 * License and Copyright: The contents of this file are subject to the
 * Apache License, Version 2.0 (the "License"); you may not use 
 * this file except in compliance with the License. You may obtain a copy of 
 * the License at 
 * http://www.fedora-commons.org/licenses.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 *
 * The entire file consists of original code.
 * Copyright © 2008 Fedora Commons, Inc.

 * 
Copyright © 2002-2007 The Rector and Visitors of the University of 
 * Virginia and Cornell University
 
 * All rights reserved.
 *
 * -----------------------------------------------------------------------------
 */
/*
 */


package fedora.utilities.policyEditor;
import javax.swing.*;
import javax.swing.event.*;
import java.util.EventObject;

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));
    	    }	       
    	}
    }
}