/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2014 by RapidMiner and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapidminer.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.tools;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;

import javax.swing.ButtonGroup;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
/**
 * This Class provides an panel for multiple content, allowing the user to switch
 * between content using a radio selection button group. 
 * @author Sebastian Land
 */
public class JRadioSelectionPanel extends JPanel {

	private static final long serialVersionUID = 1683447823326877486L;

	private JPanel togglePanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
	private ButtonGroup toggleButtons = new ButtonGroup();

	private HashMap<Object, Component> buttonComponentMap = new HashMap<Object, Component>();
	public JRadioSelectionPanel() {
		super();
		setLayout(new BorderLayout());
		add(togglePanel, BorderLayout.NORTH);
	}
	/**
	 * This method allows to add a component to this container. Hence the container provides
	 * radio buttons to toggle between components, it is needed to specify a name for the components
	 * and toolTips.
	 * @param selectionName is the name of the component
	 * @param component is the component to add
	 * @param toolTip is the tool tip of corresponding radio button
	 */
	public void addComponent(String selectionName, Component component, String toolTip) {
		boolean isFirstButton = buttonComponentMap.size() == 0;
		final JRadioButton selectionButton = new JRadioButton(selectionName, isFirstButton);
		buttonComponentMap.put(selectionButton, component);
		
		selectionButton.setToolTipText(toolTip);
		selectionButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				if (selectionButton.isSelected()) {
					remove(1);
					add(buttonComponentMap.get(selectionButton), BorderLayout.CENTER);
					repaint();
				}
			}
		});
		toggleButtons.add(selectionButton);
		togglePanel.add(selectionButton);
		
		if (isFirstButton) {
			selectionButton.setSelected(true);
			add(component, BorderLayout.CENTER);
		}
	}
}