/*
 This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Affero 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 Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License along
 with this program; if not, see http://www.gnu.org/licenses or write to the Free
 Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
*/
package com.servoy.j2db;


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

/**
 * @author jcompagner
 * 
 */
public class ControllerUndoManager extends UndoManager
{
	private UndoManager formUndoManager;
	private boolean ignore;

	public void setFormUndoManager(UndoManager formUndoManager)
	{
		this.formUndoManager = formUndoManager;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.swing.undo.UndoManager#undoableEditHappened(javax.swing.event.UndoableEditEvent)
	 */
	@Override
	public void undoableEditHappened(UndoableEditEvent e)
	{
		if (ignore) return;
		if (formUndoManager == null || formUndoManager == this)
		{
			super.undoableEditHappened(e);
		}
		else
		{
			formUndoManager.undoableEditHappened(e);
		}
	}

	public void setIgnoreEdits(boolean ignore)
	{
		this.ignore = ignore;
	}

	public boolean isIgnoreEdits()
	{
		return this.ignore;
	}

	/**
	 * 
	 */

	@Override
	public synchronized void discardAllEdits()
	{
		if (formUndoManager == null || formUndoManager == this)
		{
			super.discardAllEdits();
		}
		else
		{
			formUndoManager.discardAllEdits();
		}
	}
}