Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2009, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ------------------ * PrenotazioniBarChart.java * ------------------ * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): ; * * Changes * ------- * 09-Mar-2005 : Version 1 (DG); * */ package grafici; import hibernate.Tipologiavisita; import java.awt.Color; import java.awt.Dimension; import java.awt.Frame; import java.awt.GradientPaint; import java.util.ArrayList; import javax.swing.JScrollPane; import javax.swing.JTable; import org.eclipse.swt.SWT; import org.eclipse.swt.awt.SWT_AWT; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import command.VisitaDAO; /** * A simple demonstration application showing how to create a bar chart. */ public class PazientiBarChart extends Composite { /** * */ private static final long serialVersionUID = 1L; private static String titolo; /** * Creates a new demo instance. * * @param title * the frame title. */ public PazientiBarChart(String title, Composite parent, int style, int tipo) { super(parent, style); try { this.titolo = title; GridData gdThis = new GridData(SWT.FILL); gdThis.horizontalAlignment = SWT.FILL; gdThis.verticalAlignment = SWT.FILL; gdThis.grabExcessHorizontalSpace = true; gdThis.grabExcessVerticalSpace = true; this.setLayoutData(gdThis); this.setLayout(new GridLayout(1, false)); Composite cmp = new Composite(this, SWT.FILL | SWT.EMBEDDED); GridData gdCmp = new GridData(SWT.FILL); gdCmp.horizontalAlignment = SWT.FILL; gdCmp.verticalAlignment = SWT.FILL; gdCmp.grabExcessHorizontalSpace = true; gdCmp.grabExcessVerticalSpace = true; cmp.setLayoutData(gdCmp); cmp.setLayout(new GridLayout(1, false)); CategoryDataset dataset = createDataset(tipo); JFreeChart chart = createChart(dataset); ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setFillZoomRectangle(true); // chartPanel.setMouseWheelEnabled(true); // chartPanel.setPreferredSize(new Dimension(1000, 700)); Frame graphFrame = SWT_AWT.new_Frame(cmp); graphFrame.add(chartPanel); graphFrame.pack(); } catch (Exception e) { e.printStackTrace(); } } /** * Returns a sample dataset. * * @return The dataset. */ private static CategoryDataset createDataset(int tipo) { DefaultCategoryDataset dataset = new DefaultCategoryDataset(); if (tipo == 0) { // Tipologia visita ArrayList<Tipologiavisita> tipiVisite = VisitaDAO.getTipologVisita(); String[] righe = new String[tipiVisite.size()]; int i = 0; for (Tipologiavisita item : tipiVisite) { righe[i] = item.getTipologia(); i++; } // Data String category1 = "Category 1"; String category2 = "Category 2"; String category3 = "Category 3"; String category4 = "Category 4"; String category5 = "Category 5"; // prenotazioni for (String tipologia : righe) { dataset.addValue(1.0, tipologia, category1); dataset.addValue(4.0, tipologia, category2); dataset.addValue(3.0, tipologia, category3); dataset.addValue(5.0, tipologia, category4); dataset.addValue(5.0, tipologia, category5); } } return dataset; } /** * Creates a sample chart. * * @param dataset * the dataset. * * @return The chart. */ private static JFreeChart createChart(CategoryDataset dataset) { // create the chart... JFreeChart chart = ChartFactory.createBarChart(titolo, // chart // title "Category", // domain axis label "Value", // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation true, // include legend true, // tooltips? false // URLs? ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // set the background color for the chart... chart.setBackgroundPaint(Color.white); // get a reference to the plot for further customisation... CategoryPlot plot = (CategoryPlot) chart.getPlot(); // ****************************************************************** // More than 150 demo applications are included with the JFreeChart // Developer Guide...for more information, see: // // > http://www.object-refinery.com/jfreechart/guide.html // // ****************************************************************** // set the range axis to display integers only... NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); // disable bar outlines... BarRenderer renderer = (BarRenderer) plot.getRenderer(); renderer.setDrawBarOutline(false); // set up gradient paints for series... GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64)); GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0)); GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0)); renderer.setSeriesPaint(0, gp0); renderer.setSeriesPaint(1, gp1); renderer.setSeriesPaint(2, gp2); CategoryAxis domainAxis = plot.getDomainAxis(); domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)); // OPTIONAL CUSTOMISATION COMPLETED. return chart; } }