source: trunk/src/org/expeditee/gui/DisplayObserver.java@ 1460

/**
 *    DisplayIOObserver.java
 *    Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.expeditee.gui;

/**
 * An {@link DisplayObserver} can observe the {@link DisplayController} for detecting when
 * frame changes occur.
 * 
 * @author Brook Novak
 */
public interface DisplayObserver {
        
        /**
         * Raised whenever a frame change occurs.
         */
        public void frameChanged();
}