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///////////////////////////////////////////////////////////////////////////////
// For information as to what this class does, see the Javadoc, below.       //
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,       //
// 2007, 2008, 2009, 2010, 2014, 2015, 2022 by Peter Spirtes, Richard        //
// Scheines, Joseph Ramsey, and Clark Glymour.                               //
//                                                                           //
// 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 2 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, write to the Free Software               //
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA //
///////////////////////////////////////////////////////////////////////////////

package edu.cmu.tetradapp.editor;

import edu.cmu.tetrad.data.Knowledge;

import javax.swing.*;
import java.util.List;

/**
 * Displays a scrollable of Temporal Tiers.
 *
 * @author Shane Harwood
 */
class TierList extends JScrollPane {
    private final Knowledge knowledge;

    /**
     * Field TierListEditor
     */
    private final TemporalTierEditor tierListEditor;

    private final List vNames;

    private final Tier[] tiers;

    /**
     * Constructor for TierList.
     *
     * @param know           a {@link edu.cmu.tetrad.data.Knowledge} object
     * @param varNames       a {@link java.util.List} object
     * @param tierListEditor a {@link edu.cmu.tetradapp.editor.TemporalTierEditor} object
     */
    public TierList(Knowledge know, List varNames,
                    TemporalTierEditor tierListEditor) {

        super(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
                ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);

        this.vNames = varNames;

        if (know == null) {
            throw new NullPointerException("Knowledge must not be null.");
        }

        if (varNames == null) {
            throw new NullPointerException(
                    "AbstractVariable name list must not be " + "null.");
        }

        if (tierListEditor == null) {
            throw new NullPointerException(
                    "TierListEditor must not be " + "null.");
        }

        this.tierListEditor = tierListEditor;

        JPanel constList = new JPanel();
        setViewportView(constList);

        System.out.println("TierList Knowledge is: " + know);

        //the same kowledge
        this.knowledge = know;

        constList.setLayout(new BoxLayout(constList, BoxLayout.Y_AXIS));

        String[] tierNames = new String[varNames.size() + 1];

        tierNames[0] = "Unspecified";

        for (int i = 0; i < varNames.size(); i++) {
            tierNames[i + 1] = "Tier " + i;
        }

        this.tiers = new Tier[varNames.size() + 1];

        Tier.setKnowledge(this.knowledge);

        //tiers[names.length] = new Tier(this, "Unspecified", tierNames);


        this.tiers[varNames.size()] = new Tier(this, -1, tierNames);

        Box b = Box.createHorizontalBox();
        b.add(this.tiers[varNames.size()]);
        constList.add(b);

        for (int i = 0; i < varNames.size(); i++) {
            this.tiers[i] = new Tier(this, i, tierNames);


            Box b1 = Box.createHorizontalBox();
            b1.add(this.tiers[i]);
            //            b1.add(Box.createGlue());
            constList.add(b1);
        }

        //temp.addPropertyChangeListener(this);
        refreshInfo();    //set tiers to agree with BK
    }

    //load background knowledge info into constraint list

    /**
     * refreshInfo.
     */
    public void refreshInfo() {
        this.tiers[this.tiers.length - 1].setUnspecified(this.vNames);
        this.tiers[this.tiers.length - 1].repaint();
        this.tiers[this.tiers.length - 1].validate();

        for (int i = 0; i < this.tiers.length - 1; i++) {
            this.tiers[i].loadInfo();
            this.tiers[i].repaint();
            this.tiers[i].validate();
        }

        repaint();
        validate();
        this.tierListEditor.repaint();
        this.tierListEditor.validate();
        repaint();
        validate();
    }

    /**
     * Getter for the field knowledge.
     *
     * @return modified knowledge allowing saving.
     */
    public Knowledge getKnowledge() {
        return this.knowledge;
    }
}