/*
 *  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 java.util.List;

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.AbstractEigenvectorModel;
import com.rapidminer.operator.features.transformation.ComponentVector;
import com.rapidminer.tools.Tools;

/**
 * 
 * @author Sebastian Land
 */
public class EigenvectorModelEigenvectorRenderer extends AbstractTableModelTableRenderer {

	public static class EigenvectorTableModel extends AbstractTableModel {
		private static final long serialVersionUID = -9026248524043239399L;

		private String[] attributeNames;

		private List<? extends ComponentVector> eigenVectors;

		private int numberOfComponents;

		public EigenvectorTableModel(List<? extends ComponentVector> eigenVectors, String[] attributeNames, int numberOfComponents) {
			this.eigenVectors = eigenVectors;
			this.attributeNames = attributeNames;
			this.numberOfComponents = numberOfComponents;
		}

		public int getColumnCount() {
			return eigenVectors.size() + 1;
		}

		public int getRowCount() {
			return numberOfComponents;
		}

		public Object getValueAt(int rowIndex, int columnIndex) {
			if (columnIndex == 0) {
				return attributeNames[rowIndex];
			} else {
				return Tools.formatNumber(eigenVectors.get(columnIndex - 1).getVector()[rowIndex]);
			}
		}

		@Override
		public String getColumnName(int column) {
			if (column == 0) {
				return "Attribute";
			} else {
				return "PC " + column;
			}
		}
	}

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

	@Override
	public TableModel getTableModel(Object renderable, IOContainer ioContainer, boolean isReporting) {
		AbstractEigenvectorModel model = (AbstractEigenvectorModel) renderable;
		return model.getEigenvectorTableModel();
	}
}