/*
 *  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.new_plotter.engine.jfreechart.renderer;

import java.awt.Color;
import java.awt.Paint;
import java.awt.Shape;

import org.jfree.chart.renderer.xy.XYDifferenceRenderer;

import com.rapidminer.gui.new_plotter.StaticDebug;
import com.rapidminer.gui.new_plotter.engine.jfreechart.RenderFormatDelegate;
import com.rapidminer.gui.new_plotter.utility.DataStructureUtils;
/**
 * @author Marius Helf
 */
public class FormattedXYDifferenceRenderer extends XYDifferenceRenderer implements FormattedRenderer {
	private static final long serialVersionUID = 1L;
	
	private RenderFormatDelegate formatDelegate = new RenderFormatDelegate();
	
	/**
	 * The Difference plotter can only plot one series at a time, and that series has index 0.
	 * One value source can contain multiple series. trueSeriesIdx stores which series
	 * in the value source this FormattedXYDifferenceRenderer represents.
	 * 
	 */
	private int trueSeriesIdx;

	public FormattedXYDifferenceRenderer(int trueSeriesIdx) {
		super();
		this.trueSeriesIdx = trueSeriesIdx;
	}

	@Override
	public RenderFormatDelegate getFormatDelegate() {
		return formatDelegate;
	}
	
	@Override
	public Paint getItemPaint(int seriesIdx, int valueIdx) {
		Paint paintFromDelegate = getFormatDelegate().getItemPaint(trueSeriesIdx, valueIdx);
		if (paintFromDelegate == null) {
			return super.getItemPaint(seriesIdx, valueIdx);
		} else {
			return paintFromDelegate;
		}
	}
	
	@Override 
	public Shape getItemShape(int seriesIdx, int valueIdx) {
		Shape shapeFromDelegate = getFormatDelegate().getItemShape(seriesIdx, valueIdx);
		if (shapeFromDelegate == null) {
			return super.getItemShape(seriesIdx, valueIdx);
		} else {
			return shapeFromDelegate;
		}
	}
	
	@Override
	public Paint getPositivePaint() {
		StaticDebug.debug("getPositivePaint(): " + trueSeriesIdx);
		Color color = getFormatDelegate().getSeriesColor(trueSeriesIdx);
		if (color != null) {
			return DataStructureUtils.setColorAlpha(color, color.getAlpha()/2);
		} else {
			return super.getPositivePaint();
		}
	}
	
	@Override
	public Paint getNegativePaint() {
		StaticDebug.debug("getNegativePaint(): " + trueSeriesIdx);
		Color color = getFormatDelegate().getSeriesColor(trueSeriesIdx);
		if (color != null) {
			return (new Color(255-color.getRed(), 255-color.getGreen(), 255-color.getBlue(), color.getAlpha()/2));
		} else {
			return super.getNegativePaint();
		}
	}
	
	@Override
	public Paint getItemOutlinePaint(int seriesIdx, int valueIdx) {
		if (getFormatDelegate().isItemSelected(seriesIdx, valueIdx)) {
			return super.getItemOutlinePaint(seriesIdx, valueIdx);
		} else {
			return DataStructureUtils.setColorAlpha(Color.LIGHT_GRAY, 20);
		}
	}
}