/**
 * Copyright (C) 2001-2017 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 com.rapidminer.gui.new_plotter.StaticDebug;
import com.rapidminer.gui.new_plotter.engine.jfreechart.RenderFormatDelegate;
import com.rapidminer.gui.new_plotter.utility.DataStructureUtils;

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

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


/**
 * @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);
		}
	}
}