/*
 *  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.viewer;

import java.awt.Color;
import java.awt.event.MouseEvent;

import javax.swing.table.JTableHeader;

import com.rapidminer.example.ExampleSet;
import com.rapidminer.gui.tools.CellColorProvider;
import com.rapidminer.gui.tools.ExtendedJTable;
import com.rapidminer.gui.tools.SwingTools;
import com.rapidminer.gui.tools.ExtendedTableSorterModel;


/**
 * Can be used to display (parts of) the meta data by means of a JTable.
 * 
 * @author Ingo Mierswa
 * @version $Id: MetaDataViewerTable.java,v 1.6 2008/08/25 08:10:33 ingomierswa Exp $
 */
public class MetaDataViewerTable extends ExtendedJTable {
    
    private static final long serialVersionUID = -4879028136543294746L;

    private int numberOfSpecialAttributeRows = 0;

    private MetaDataViewerTableModel model = null;
    
    
    public MetaDataViewerTable() {
    	setCellColorProvider(new CellColorProvider() {
    	    public Color getCellColor(int row, int col) {
    	        int actualRowIndex = ((ExtendedTableSorterModel)getModel()).modelIndex(row);
    	        if (actualRowIndex < numberOfSpecialAttributeRows) {
    	        	return SwingTools.LIGHTEST_YELLOW;
    	        } else {
    	            if (row % 2 == 0) {
    	                return Color.WHITE;
    	            } else {
    	            	return SwingTools.LIGHTEST_BLUE;
    	            }
    	        }
    	    }
    	});
    }
    
    public void setExampleSet(ExampleSet exampleSet) {
    	this.model = new MetaDataViewerTableModel(exampleSet);
    	setModel(this.model);
    	if (exampleSet != null)
    		this.numberOfSpecialAttributeRows = exampleSet.getAttributes().specialSize();
    	else 
    		this.numberOfSpecialAttributeRows = 0;
    }
    
    public MetaDataViewerTableModel getMetaDataModel() {
        return this.model;
    }
    
    /** This method ensures that the correct tool tip for the current column is delivered. */
    protected JTableHeader createDefaultTableHeader() {
      return new JTableHeader(columnModel) {
    	  
		private static final long serialVersionUID = 1L;

		public String getToolTipText(MouseEvent e) {
          java.awt.Point p = e.getPoint();
          int index = columnModel.getColumnIndexAtX(p.x);
          int realColumnIndex = convertColumnIndexToModel(index);
          return model.getColumnToolTip(realColumnIndex);
        }
      };
    }
}