/*
* Copyright (c) 2009 Piotr Piastucki
*
* This file is part of Patchca CAPTCHA library.
*
* Patchca 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 3 of the License, or
* (at your option) any later version.
*
* Patchca 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 Patchca. If not, see <http://www.gnu.org/licenses/>.
*/
package cn.dreampie.captcha.filter.predefined;
import cn.dreampie.captcha.filter.AbstractFilterFactory;
import cn.dreampie.captcha.filter.library.RippleImageOp;
import java.awt.image.BufferedImageOp;
import java.util.ArrayList;
import java.util.List;
public class RippleFilterFactory extends AbstractFilterFactory {
protected List<BufferedImageOp> filters;
protected RippleImageOp ripple;
public RippleFilterFactory() {
ripple = new RippleImageOp();
}
protected List<BufferedImageOp> getPreRippleFilters() {
return new ArrayList<BufferedImageOp>();
}
protected List<BufferedImageOp> getPostRippleFilters() {
return new ArrayList<BufferedImageOp>();
}
@Override
public List<BufferedImageOp> getFilters() {
if (filters == null) {
filters = new ArrayList<BufferedImageOp>();
filters.addAll(getPreRippleFilters());
filters.add(ripple);
filters.addAll(getPostRippleFilters());
}
return filters;
}
}