Java tutorial
package GanttChart; /** * Created by nicola on 06/04/16. */ /* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library 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 2.1 of the License, or (at your option) any later version. * * This library 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 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * --------------- * GanttDemo1.java * --------------- * (C) Copyright 2002-2004, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: GanttDemo1.java,v 1.12 2004/04/26 19:11:54 taqua Exp $ * * Changes * ------- * 06-Jun-2002 : Version 1 (DG); * 10-Oct-2002 : Modified to use DemoDatasetFactory (DG); * 10-Jan-2003 : Renamed GanttDemo --> GanttDemo1 (DG); * 16-Oct-2003 : Shifted dataset from DemoDatasetFactory to this class (DG); * */ import Model.Attivita; import Model.Progetto; import Model.Sequenza; import com.sun.javaws.jnl.JavaFXAppDesc; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.data.category.IntervalCategoryDataset; import org.jfree.data.gantt.Task; import org.jfree.data.gantt.TaskSeries; import org.jfree.data.gantt.TaskSeriesCollection; import org.jfree.data.time.SimpleTimePeriod; import javax.swing.*; import java.awt.*; import java.util.Calendar; import java.util.Date; /** * Classe che mostra a schermo il gantt di un * * [ si utilizzano le API di JFreeChart ] * */ public class Gantt extends JFrame { private String nomeProgetto; private Progetto progetto; /** * Creates a new demo. * * @param title the frame title. */ public Gantt(String title, String nomeProgetto) { super(title); this.nomeProgetto = nomeProgetto; this.progetto = new Progetto(nomeProgetto); setVisible(true); final IntervalCategoryDataset dataset = createDataset(); final JFreeChart chart = createChart(dataset); // add the chart to a panel... final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(700, 750)); setContentPane(chartPanel); } // **************************************************************************** // * JFREECHART DEVELOPER GUIDE * // * The JFreeChart Developer Guide, written by David Gilbert, is available * // * to purchase from Object Refinery Limited: * // * * // * http://www.object-refinery.com/jfreechart/guide.html * // * * // * Sales are used to provide funding for the JFreeChart project - please * // * support us so that we can continue developing free software. * // **************************************************************************** /** * Crea un dataset per il gantt * * @return dataset */ public IntervalCategoryDataset createDataset() { // fff TaskSeries taskseries = new TaskSeries("Elendo delle attivit di " + progetto.getNome()); /* Day day = new Day(); Day day1 = new Day(); for (int i = 0; i < 50; i++) { int j = (int) (Math.random() * 10D) + 1; for (int k = 0; k < j; k++) day1 = (Day) day1.next(); taskseries.add(new Task("Task " + i, new Date(day.getMiddleMillisecond()), new Date(day1.getMiddleMillisecond()))); day = (Day) day1.next(); day1 = (Day) day1.next(); }*/ for (Sequenza sequenza : progetto.getStato()) { //aggiungo le attivit alla sequenza for (Attivita attivita : sequenza.getStato()) { taskseries.add(attivita.getTask()); } } TaskSeriesCollection dataset = new TaskSeriesCollection(); dataset.add(taskseries); return dataset; } /** * Utility method for creating <code>Date</code> objects. * * @param day the date. * @param month the month. * @param year the year. * * @return a date. */ private static Date date(final int day, final int month, final int year) { final Calendar calendar = Calendar.getInstance(); calendar.set(year, month, day); final Date result = calendar.getTime(); return result; } /** * Creates a chart. * * @param dataset the dataset. * * @return The chart. */ private JFreeChart createChart(final IntervalCategoryDataset dataset) { final JFreeChart chart = ChartFactory.createGanttChart(this.nomeProgetto, // chart title "Attivit", // domain axis label "Data", // range axis label dataset, // data false, // include legend true, // tooltips true // urls ); // chart.getCategoryPlot().getDomainAxis().setMaxCategoryLabelWidthRatio(10.0f); return chart; } }