/*
 *  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.viewer.collection;

import java.awt.Component;
import java.util.HashMap;
import java.util.Map;

import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;

import com.rapidminer.gui.tools.SwingTools;
import com.rapidminer.operator.IOObject;
import com.rapidminer.operator.IOObjectCollection;
import com.rapidminer.operator.ResultObject;
import com.rapidminer.operator.learner.meta.MetaModel;
/**
 * 
 * @author Sebastian Land
 */
public class CollectionTreeCellRenderer extends DefaultTreeCellRenderer {

	private static final long serialVersionUID = 1L;
	
	private final Icon ICON_FOLDER_OPEN   = SwingTools.createIcon("16/folder.png");
	private final Icon ICON_FOLDER_CLOSED = SwingTools.createIcon("16/folder_closed.png");
	
	private final Map<IOObject,String> childNames = new HashMap<IOObject,String>();
	
	public CollectionTreeCellRenderer(IOObject collection) {
		if (collection instanceof MetaModel) {
			MetaModel mm = (MetaModel) collection;
			for (int i = 0; i < mm.getModels().size(); i++) {
				childNames.put(mm.getModels().get(i), mm.getModelNames().get(i));
			}
		}
	}

	@Override
	public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) {
		JLabel label = (JLabel)super.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);
		if (value instanceof ResultObject) {
			ResultObject ro = (ResultObject) value;
			String name = childNames.get(ro);
			if (name == null) {
				name = ro.getName();
			}
			label.setText("<html>" + name + " (<small>"+ro.getSource()+"</small>)</html>");			
			if (ro instanceof IOObjectCollection) {
				label.setIcon(expanded ? ICON_FOLDER_OPEN : ICON_FOLDER_CLOSED);
			} else {
				Icon resultIcon = ro.getResultIcon();
				label.setIcon(resultIcon);
			}
		} else if (value instanceof IOObject) {
			IOObject ioo = (IOObject) value;			
			label.setText(ioo.getClass().getSimpleName());
		} 
		return label;
	}
}