/* Copyright (C) 2008 Christian Schneider * * This file is part of Nomad. * * Nomad 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 2 of the License, or * (at your option) any later version. * * Nomad 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 Nomad; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package net.sf.nmedit.jpatch.history; import javax.swing.undo.UndoManager; import javax.swing.undo.UndoableEdit; public class PUndoManager extends UndoManager { private boolean modified = false; public synchronized boolean isModified() { return modified; } public synchronized void setModified(boolean modified) { this.modified = modified; } public synchronized boolean addEdit(UndoableEdit anEdit) { if (super.addEdit(anEdit)) { this.modified = true; return true; } return false; } }