biomine.bmvis2.pipeline.TwoPhaseExtractOperation.java Source code

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Here is the source code for biomine.bmvis2.pipeline.TwoPhaseExtractOperation.java

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/*
 * Copyright 2012 University of Helsinki.
 *
 * This file is part of BMVis.
 *
 * BMVis 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.
 *
 * BMVis 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 BMVis.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

package biomine.bmvis2.pipeline;

import java.io.IOException;
import java.io.ObjectInputStream;

import javax.swing.BoxLayout;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.json.simple.JSONObject;

import biomine.bmvis2.GraphCache;
import biomine.bmvis2.VisualGraph;
import biomine.bmvis2.VisualGraph.Change;
import biomine.bmvis2.algorithms.TwoPhase;
import biomine.bmvis2.edgesimplification.SimplificationUtils;
import biomine.bmvis2.edgesimplification.Simplifier;
import biomine.bmvis2.graphcontrols.BestPathGrader;

public class TwoPhaseExtractOperation implements GraphOperation {

    private int target = 1000000;

    int oldTot = 1;

    public TwoPhaseExtractOperation() {
    }

    GraphCache<TwoPhase> gc = new GraphCache<TwoPhase>(Change.STRUCTURE, Change.POINTS_OF_INTEREST);

    @Override
    public void doOperation(VisualGraph g) throws GraphOperationException {

        int tot = SimplificationUtils.countNormalEdges(g);
        target = Math.min(target, tot);

        TwoPhase p = gc.get(g);
        if (p == null) {
            p = new TwoPhase(g);
            gc.put(g, p);
        }

        p.doHiding(target);
    }

    @Override
    public JComponent getSettingsComponent(final SettingsChangeCallback v, VisualGraph graph) {
        int tot = SimplificationUtils.countNormalEdges(graph);

        if (oldTot != 0) {
            int nt = (target * tot) / oldTot;
            if (nt != target) {
                target = Math.max(nt, target);
            }
        } else {
            target = tot;
        }

        oldTot = tot;
        JPanel ret = new JPanel();

        final JSlider sl = new JSlider(0, tot, Math.min(target, tot));
        sl.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent arg0) {
                if (target == sl.getValue())
                    return;
                target = sl.getValue();
                v.settingsChanged(false);

            }
        });
        ret.setLayout(new BoxLayout(ret, BoxLayout.Y_AXIS));
        ret.add(sl);

        return ret;
    }

    @Override
    public String getTitle() {
        return "Two phase hider";
    }

    @Override
    public String getToolTip() {
        return null;
    }

    @Override
    public void fromJSON(JSONObject o)
            throws ClassNotFoundException, InstantiationException, IllegalAccessException {
        target = ((Long) o.get("target")).intValue();
    }

    @Override
    public JSONObject toJSON() {
        JSONObject ret = new JSONObject();
        ret.put("target", target);
        return ret;
    }
}