MeldablePQButtons.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;

import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.Vector;

import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerNumberModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import algvis.core.Algorithm;
import algvis.internationalization.IButton;
import algvis.internationalization.ILabel;
import algvis.ui.VisPanel;

public class MeldablePQButtons extends PQButtons implements ChangeListener {
    private static final long serialVersionUID = 1242711038059609653L;
    private IButton meldB;
    public JSpinner activeHeap;
    private ILabel activeLabel;

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

    @Override
    public void actionButtons(JPanel P) {
        super.actionButtons(P);

        meldB = new IButton("button-meld");
        meldB.setMnemonic(KeyEvent.VK_M);
        meldB.addActionListener(this);
        P.add(meldB);
    }

    @Override
    public void otherButtons(JPanel P) {
        activeHeap = new JSpinner(new SpinnerNumberModel(1, 1,
            MeldablePQ.numHeaps, 1));
        activeHeap.addChangeListener(this);
        activeLabel = new ILabel("activeheap");
        P.add(activeLabel);
        P.add(activeHeap);
        super.otherButtons(P);
    }

    @Override
    public void actionPerformed(ActionEvent evt) {
        super.actionPerformed(evt);
        if (evt.getSource() == meldB) {
            final Vector<Integer> args = I.getVI();
            args.add(-1);
            args.add(-1);
            panel.history.saveEditId();
            ((MeldablePQ) D).meld(args.get(0), args.get(1));
            if (panel.pauses){
                panel.history.rewind();
            }
        }
    }

    @Override
    public void setOtherEnabled(boolean enabled) {
        super.setOtherEnabled(enabled);
        meldB.setEnabled(enabled);
        activeHeap.setEnabled(enabled);
    }

    @Override
    public void stateChanged(ChangeEvent evt) {
        if (evt.getSource() == activeHeap) {
            final MeldablePQ H = ((MeldablePQ) D);

            // ak pouzivatel zmenil activeHeap
            if (panel.history.isBetweenAlgorithms()) {
                D.start(new Algorithm(panel) {
                    @Override
                    public void runAlgorithm() {
                        H.lowlight();
                        H.highlight((Integer) activeHeap.getValue());
                    }
                });
            } else {
                // ak activeHeap bola zmenena v algoritme
                H.lowlight();
                H.highlight((Integer) activeHeap.getValue());
            }

            if (H.chosen != null) {
                H.chosen.unmark();
            }
        }
    }
}