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UndoAdapter.java

/* $RCSfile$
 * $Author: egonw $
 * $Date: 2007-01-04 18:26:00 +0100 (Thu, 04 Jan 2007) $
 * $Revision: 7634 $
 *
 * Copyright (C) 2005-2007  The Chemistry Development Kit (CDK) project
 *
 * Contact: cdk-devel@lists.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package org.openscience.cdk.applications.undoredo;

import javax.swing.event.UndoableEditEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.undo.UndoManager;
import javax.swing.undo.UndoableEdit;

/**
 * An undo adapter for updating the state of the undo components according to
 * the new state of the undo history list Is registered as a listener to the
 * undoSupport which is recieving the undo/redo events.
 * 
 * @author tohel
 * @cdk.module control
 */
00039 public class UndoAdapter implements UndoableEditListener {

      private UndoManager undoManager;

      /**
       * @param undoManager
       *            The undoManager handling the undo/redo history list
       */
00047       public UndoAdapter(UndoManager undoManager) {
            this.undoManager = undoManager;
      }

      /*
       * (non-Javadoc)
       * 
       * @see javax.swing.event.UndoableEditListener#undoableEditHappened(javax.swing.event.UndoableEditEvent)
       */
      public void undoableEditHappened(UndoableEditEvent arg0) {
            UndoableEdit edit = arg0.getEdit();
            undoManager.addEdit(edit);
      }

}

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