/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.gui.renderer.models;

import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;

import com.rapidminer.gui.renderer.AbstractTableModelTableRenderer;
import com.rapidminer.operator.IOContainer;
import com.rapidminer.operator.features.transformation.SVDModel;
import com.rapidminer.tools.Tools;

/**
 * This is an renderer for {@link SVDModel}s. It shows the
 * Singular Values in a table view.
 * 
 * @author Sebastian Land
 */
public class SVDModelValueRenderer extends AbstractTableModelTableRenderer {

    private class SVDModelValueTableModel extends AbstractTableModel {

        private static final long serialVersionUID = -9026248524043239399L;

        private SVDModel model;

        public SVDModelValueTableModel(SVDModel model) {
            this.model = model;
        }

        @Override
        public int getColumnCount() {
            return 5;
        }

        @Override
        public int getRowCount() {
            return model.getNumberOfComponents();
        }

        @Override
        public Object getValueAt(int rowIndex, int columnIndex) {
            switch (columnIndex) {
            case 0: return "SVD " + (rowIndex + 1);
            case 1: return Tools.formatNumber(model.getSingularValue(rowIndex));
            case 2: return Tools.formatNumber(model.getSingularValueProportion(rowIndex));
            case 3: return Tools.formatNumber(model.getCumulativeSingularValue(rowIndex));
            case 4: return Tools.formatNumber(model.getCumulativeSingularValueProportion(rowIndex));
            default: return "unknown";
            }
        }

        @Override
        public String getColumnName(int column) {
            switch (column) {
            case 0: return "Component";
            case 1: return "Singular Value";
            case 2: return "Proportion of Singular Values";
            case 3: return "Cumulative Singular Values";
            case 4: return "Cumulative Proportion of Singular Values";
            default: return "unknown";
            }
        }

    }

    @Override
    public String getName() {
        return "Eigenvalues";
    }

    @Override
    public TableModel getTableModel(Object renderable, IOContainer ioContainer, boolean isReporting) {
        SVDModel model = (SVDModel) renderable;
        return new SVDModelValueTableModel(model);
    }
}