/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2008 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;

import java.awt.Component;

import javax.swing.JEditorPane;
import javax.swing.JLabel;

import com.rapidminer.gui.tools.ExtendedJScrollPane;
import com.rapidminer.operator.IOContainer;
import com.rapidminer.operator.ResultObject;
import com.rapidminer.report.Reportable;
import com.rapidminer.tools.Tools;

/**
 * This is the abstract renderer superclass for all renderers which
 * should be a simple text based on the toString method of a given
 * renderable.
 * 
 * @author Ingo Mierswa
 * @version $Id: DefaultTextRenderer.java,v 1.6 2008/07/19 16:31:17 ingomierswa Exp $
 */
public class DefaultTextRenderer extends NonGraphicalRenderer {
	
	public String getName() {
		return "Text View";
	}

	public Component getVisualizationComponent(Object renderable, IOContainer ioContainer) {
		JEditorPane resultText = new JEditorPane();
        resultText.setContentType("text/html");
		resultText.setBorder(javax.swing.BorderFactory.createEmptyBorder(11, 11, 11, 11));
        resultText.setEditable(false);
        resultText.setBackground((new JLabel()).getBackground());
        
		if (renderable instanceof ResultObject) {
			ResultObject result = (ResultObject)renderable;
			String str = toHTML(result.toResultString());
			resultText.setText("<html><h1>" + result.getName() + "</h1><pre>" + str + "</pre></html>");			
		} else {
			String str = toHTML(renderable.toString());
			resultText.setText("<html><h1>" + Tools.classNameWOPackage(renderable.getClass()) + "</h1><pre>" + str + "</pre></html>");
		}
        return new ExtendedJScrollPane(resultText);
	}

	/**
	 * Encodes the given String as HTML. Only linebreaks and less then and
	 * greater than will be encoded.
	 */
	private String toHTML(String string) {
		String str = string;
		str = str.replaceAll(">", ">");
		str = str.replaceAll("<", "<");
		str = str.replaceAll(Tools.getLineSeparator(), "<br>");
		return str;
	}
	
	public Reportable createReportable(Object renderable, IOContainer ioContainer) {
		return new DefaultReadable(renderable.toString());
	}
}