Java tutorial
/* * Copyright (C) 2005-2013 ManyDesigns srl. All rights reserved. * http://www.manydesigns.com/ * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.manydesigns.portofino.chart; import java.awt.Color; import java.awt.Font; import java.awt.GradientPaint; import java.awt.Paint; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.Locale; import org.apache.commons.lang.StringUtils; import org.hibernate.Session; import org.jfree.chart.JFreeChart; import org.jfree.chart.labels.StandardPieSectionLabelGenerator; import org.jfree.chart.plot.DrawingSupplier; import org.jfree.chart.plot.PiePlot; import org.jfree.chart.title.LegendTitle; import org.jfree.chart.title.TextTitle; import org.jfree.chart.title.Title; import org.jfree.chart.urls.PieURLGenerator; import org.jfree.data.general.DefaultPieDataset; import org.jfree.data.general.PieDataset; import org.jfree.ui.HorizontalAlignment; import org.jfree.ui.RectangleEdge; import org.jfree.ui.RectangleInsets; import org.jfree.ui.VerticalAlignment; import com.manydesigns.elements.ElementsThreadLocals; import com.manydesigns.portofino.pageactions.chart.configuration.ChartConfiguration; import com.manydesigns.portofino.persistence.Persistence; import com.manydesigns.portofino.persistence.QueryUtils; /** * @author Paolo Predonzani - paolo.predonzani@manydesigns.com * @author Angelo Lupo - angelo.lupo@manydesigns.com * @author Giampiero Granatella - giampiero.granatella@manydesigns.com * @author Alessio Stalla - alessio.stalla@manydesigns.com */ public abstract class Chart1DGenerator extends AbstractChartGenerator { public static final String copyright = "Copyright (c) 2005-2013, ManyDesigns srl"; // ************************************************************************** // Other objects // ************************************************************************** private final Font titleFont = new Font(ChartConfiguration.getFont(), Font.BOLD, 12); private final Font legendFont = new Font(ChartConfiguration.getFont(), Font.BOLD, 10); private final Font legendItemFont = new Font(ChartConfiguration.getFont(), Font.PLAIN, 10); private final Color transparentColor = new Color(0, true); public JFreeChart generate(ChartDefinition chartDefinition, Persistence persistence, Locale locale) { DefaultPieDataset dataset = new DefaultPieDataset(); java.util.List<Object[]> result; String query = chartDefinition.getQuery(); logger.info(query); Session session = persistence.getSession(chartDefinition.getDatabase()); result = QueryUtils.runSql(session, query); for (Object[] current : result) { ComparableWrapper key = new ComparableWrapper((Comparable) current[0]); dataset.setValue(key, (Number) current[1]); if (current.length > 2) { key.setLabel(current[2].toString()); } } JFreeChart chart = createChart(chartDefinition, dataset); chart.setAntiAlias(isAntiAlias()); // impostiamo il bordo invisibile // eventualmente e' il css a fornirne uno // eventualmente e' il css a fornirne uno chart.setBorderVisible(isBorderVisible()); // impostiamo il titolo TextTitle title = chart.getTitle(); title.setFont(titleFont); title.setMargin(10.0, 0.0, 0.0, 0.0); // ottieni il Plot PiePlot plot = (PiePlot) chart.getPlot(); String urlExpression = chartDefinition.getUrlExpression(); if (!StringUtils.isBlank(urlExpression)) { PieURLGenerator urlGenerator = new ChartPieUrlGenerator(urlExpression); plot.setURLGenerator(urlGenerator); } else { plot.setURLGenerator(null); } // il plot ha sfondo e bordo trasparente // (quindi si vede il colore del chart) plot.setBackgroundPaint(transparentColor); plot.setOutlinePaint(transparentColor); // Modifico il toolTip // hongliangpan add // :?{0} {1} {2} ? ,??? plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}={1}({2})", NumberFormat.getNumberInstance(), new DecimalFormat("0.00%"))); // {0}={1}({2}) plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0}")); // ?(0.0-1.0) // plot.setForegroundAlpha(1.0f); // imposta la distanza delle etichette dal plot plot.setLabelGap(0.03); // plot.setLabelGenerator(new MyPieSectionLabelGenerator()); // imposta il messaggio se non ci sono dati plot.setNoDataMessage(ElementsThreadLocals.getText("no.data.available")); plot.setCircular(true); plot.setBaseSectionOutlinePaint(Color.BLACK); DrawingSupplier supplier = new DesaturatedDrawingSupplier(plot.getDrawingSupplier()); plot.setDrawingSupplier(supplier); // ? plot.setForegroundAlpha(1.0f); // impostiamo il titolo della legenda String legendString = chartDefinition.getLegend(); Title subtitle = new TextTitle(legendString, legendFont, Color.BLACK, RectangleEdge.BOTTOM, HorizontalAlignment.CENTER, VerticalAlignment.CENTER, new RectangleInsets(0, 0, 0, 0)); subtitle.setMargin(0, 0, 5, 0); chart.addSubtitle(subtitle); // impostiamo la legenda LegendTitle legend = chart.getLegend(); legend.setBorder(0, 0, 0, 0); legend.setItemFont(legendItemFont); int legendMargin = 10; legend.setMargin(0.0, legendMargin, legendMargin, legendMargin); legend.setBackgroundPaint(transparentColor); // impostiamo un gradiente orizzontale Paint chartBgPaint = new GradientPaint(0, 0, new Color(255, 253, 240), 0, getHeight(), Color.WHITE); chart.setBackgroundPaint(chartBgPaint); return chart; } protected abstract JFreeChart createChart(ChartDefinition chartDefinition, PieDataset dataset); }