Java tutorial
package com.che.software.testato.util.jfreechart; import java.awt.BasicStroke; import java.awt.Color; import java.io.Serializable; import java.util.List; import org.apache.log4j.Logger; import org.jfree.chart.JFreeChart; import org.jfree.chart.annotations.XYTextAnnotation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import com.che.software.testato.domain.entity.MatrixResult; import com.che.software.testato.util.ColorUtil; import com.che.software.testato.util.jsf.faces.LocaleUtil; /** * Static class used to colorize the JFree line charts. * * @author Clement HELIOU (clement.heliou@che-software.com). * @copyright Che Software. * @license GNU General Public License. * @see Serializable. * @since August, 2011. * * This file is part of Testato. * * Testato is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 3 of the License, or (at your * option) any later version. * * Testato 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 General Public License * for more details. * * You should have received a copy of the GNU General Public License * along with Testato. If not, see <http://www.gnu.org/licenses/>. * * Testato's logo is a creation of Arrioch * (http://arrioch.deviantart.com/) and it's distributed under the terms * of the Creative Commons License. */ public class LineChartGraphistUtil implements Serializable { /** * Constants. */ private static final Logger LOGGER = Logger.getLogger(LineChartGraphistUtil.class); private static final long serialVersionUID = -8139259349522463698L; /** * Private default builder; this is a static class. */ private LineChartGraphistUtil() { } /** * Colorized and transforms a given JFreeChart. * * @author Clement HELIOU (clement.heliou@che-software.com). * @param lineChart the given chart. * @param maxAbscissaValue the max abscissa value of the chart. * @param xValues the x axis values list. * @param yValues the y axis values list. * @param xExcludedValues the x axis excluded values. * @param yExcludedValues the y axis excluded values. * @return the transformed chart. * @since August, 2011. */ public static JFreeChart getColorizedChartFromChart(JFreeChart lineChart, double maxAbscissaValue, List<MatrixResult> xValues, List<MatrixResult> yValues, List<MatrixResult> xExcludedValues, List<MatrixResult> yExcludedValues) { LOGGER.debug("getColorizedChartFromChart()."); lineChart.setBackgroundPaint(Color.WHITE); XYPlot plot = (XYPlot) lineChart.getPlot(); XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); renderer.setSeriesLinesVisible(0, false); renderer.setSeriesLinesVisible(1, false); renderer.setSeriesStroke(2, new BasicStroke(2)); renderer.setSeriesStroke(3, new BasicStroke(2)); renderer.setSeriesShapesVisible(2, false); renderer.setSeriesShapesVisible(3, false); renderer.setSeriesPaint(0, ColorUtil.getHSBColor(ColorUtil.BLUE_COLOR[0], ColorUtil.BLUE_COLOR[1], ColorUtil.BLUE_COLOR[2])); renderer.setSeriesPaint(1, ColorUtil.getHSBColor(ColorUtil.ORANGE_COLOR[0], ColorUtil.ORANGE_COLOR[1], ColorUtil.ORANGE_COLOR[2])); renderer.setSeriesPaint(2, ColorUtil.getHSBColor(ColorUtil.DARK_BLUE_COLOR[0], ColorUtil.DARK_BLUE_COLOR[1], ColorUtil.DARK_BLUE_COLOR[2])); renderer.setSeriesPaint(3, ColorUtil.getHSBColor(ColorUtil.DARK_BLUE_COLOR[0], ColorUtil.DARK_BLUE_COLOR[1], ColorUtil.DARK_BLUE_COLOR[2])); plot.setRenderer(renderer); XYTextAnnotation low = new XYTextAnnotation( LocaleUtil.getResourceBundleStringByName(LocaleUtil.AREA_LOW_NAME), (0.5 * maxAbscissaValue) - 1, maxAbscissaValue + 1), medium = new XYTextAnnotation(LocaleUtil.getResourceBundleStringByName(LocaleUtil.AREA_MEDIUM_NAME), (1.5 * maxAbscissaValue) - 2, maxAbscissaValue + 1), high = new XYTextAnnotation(LocaleUtil.getResourceBundleStringByName(LocaleUtil.AREA_HIGH_NAME), 1.5 * maxAbscissaValue, maxAbscissaValue - 2); low.setFont(ColorUtil.TITLE_FONT); medium.setFont(ColorUtil.TITLE_FONT); high.setFont(ColorUtil.TITLE_FONT); low.setPaint(ColorUtil.getHSBColor(ColorUtil.DARK_BLUE_COLOR[0], ColorUtil.DARK_BLUE_COLOR[1], ColorUtil.DARK_BLUE_COLOR[2])); medium.setPaint(ColorUtil.getHSBColor(ColorUtil.DARK_BLUE_COLOR[0], ColorUtil.DARK_BLUE_COLOR[1], ColorUtil.DARK_BLUE_COLOR[2])); high.setPaint(ColorUtil.getHSBColor(ColorUtil.DARK_BLUE_COLOR[0], ColorUtil.DARK_BLUE_COLOR[1], ColorUtil.DARK_BLUE_COLOR[2])); plot.addAnnotation(low); plot.addAnnotation(medium); plot.addAnnotation(high); for (int i = 0; i < xValues.size(); i++) { XYTextAnnotation itemLabel = new XYTextAnnotation(xValues.get(i).getScriptLabel(), (yValues.get(i).getPercentage() * 100), (xValues.get(i).getPercentage() * 100) + 0.5); itemLabel.setFont(ColorUtil.DEFAULT_FONT); itemLabel.setPaint(ColorUtil.getHSBColor(ColorUtil.BLUE_COLOR[0], ColorUtil.BLUE_COLOR[1], ColorUtil.BLUE_COLOR[2])); plot.addAnnotation(itemLabel); } if (null != xExcludedValues) { for (int j = 0; j < xExcludedValues.size(); j++) { XYTextAnnotation itemLabel = new XYTextAnnotation(xExcludedValues.get(j).getScriptLabel(), (yExcludedValues.get(j).getPercentage() * 100), (xExcludedValues.get(j).getPercentage() * 100) + 0.5); itemLabel.setFont(ColorUtil.DEFAULT_FONT); itemLabel.setPaint(ColorUtil.getHSBColor(ColorUtil.ORANGE_COLOR[0], ColorUtil.ORANGE_COLOR[1], ColorUtil.ORANGE_COLOR[2])); plot.addAnnotation(itemLabel); } } return lineChart; } /** * Gets the max abscissa value from the abscissa values (excluded or not). * * @author Clement HELIOU (clement.heliou@che-software.com). * @param yValues the selected values. * @param yExcludedValues the excluded values. * @return the max value. * @since August, 2011. */ public static double getMaxAbscissaValue(List<MatrixResult> yValues, List<MatrixResult> yExcludedValues) { LOGGER.debug("getMaxAbscissaValue()."); double maxValue = 0; for (MatrixResult yValue : yValues) { if (yValue.getPercentage() > maxValue) { maxValue = yValue.getPercentage(); } } for (MatrixResult yValue : yExcludedValues) { if (yValue.getPercentage() > maxValue) { maxValue = yValue.getPercentage(); } } return maxValue * 100; } }