PairHeapButtons.java

/*******************************************************************************
 * Copyright (c) 2012-present Jakub Kováč, Jozef Brandýs, Katarína Kotrlová,
 * Pavol Lukča, Ladislav Pápay, Viktor Tomkovič, Tatiana Tóthová
 * 
 * This program 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 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package algvis.ds.priorityqueues.pairingheap;

import java.awt.event.ActionEvent;

import javax.swing.JPanel;
import javax.swing.event.ChangeListener;

import algvis.ds.priorityqueues.MeldablePQButtons;
import algvis.internationalization.IComboBox;
import algvis.internationalization.ILabel;
import algvis.ui.VisPanel;

public class PairHeapButtons extends MeldablePQButtons implements
    ChangeListener {
    private static final long serialVersionUID = -5692673269308125662L;
    public IComboBox pairVariant;

    public PairHeapButtons(VisPanel M) {
        super(M);
    }

    @Override
    public JPanel initThirdRow() {
        final JPanel P = new JPanel();

        final ILabel fhLabel = new ILabel("pairing");
        final String[] pairh = {
            "pairingnaive", "pairinglrrl"
        };
        // , "pairingfb", "pairingbf", "pairingmultipass", "pairinglazymulti" };

        pairVariant = new IComboBox(pairh);
        pairVariant.addActionListener(this);

        P.add(fhLabel);
        P.add(pairVariant);
        return P;
    }

    @Override
    public void actionPerformed(ActionEvent evt) {
        super.actionPerformed(evt);
        if (evt.getSource() == pairVariant) {
            final int i = pairVariant.getSelectedIndex();

            if ((i >= 0) && (i < 2)) { // (i < 6)){
                ((PairingHeap) D).pairState = PairHeapDelete.Pairing.values()[i];
            }
        }
    }
}