/**
* Copyright (C) 2002-2012 The FreeCol Team
*
* This file is part of FreeCol.
*
* FreeCol 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.
*
* FreeCol 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 FreeCol. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.freecol.common.model;
import java.util.logging.Logger;
/**
* Helper container to remember the Europe state prior to some
* change, and fire off any consequent property changes.
*/
public class EuropeWas {
private static final Logger logger = Logger.getLogger(EuropeWas.class.getName());
private Europe europe;
private int unitCount;
public EuropeWas(Europe europe) {
this.europe = europe;
this.unitCount = europe.getUnitCount();
}
/**
* Fire any property changes resulting from actions in Europe.
*/
public void fireChanges() {
int newUnitCount = europe.getUnitCount();
if (newUnitCount != unitCount) {
String pc = Europe.UNIT_CHANGE.toString();
europe.firePropertyChange(pc, unitCount, newUnitCount);
}
}
}