grafici.StatistichePieChart.java Source code

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Here is the source code for grafici.StatistichePieChart.java

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/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2007, 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.]
 *
 * ------------------
 * PrenotazioniPieChart.java
 * ------------------
 * (C) Copyright 2003-2007, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   ;
 *
 * Changes
 * -------
 * 09-Mar-2005 : Version 1, copied from the demo collection that ships with
 *               the JFreeChart Developer Guide (DG);
 *
 */

package grafici;

import hibernate.Tipologiavisita;

import java.awt.Frame;
import java.util.ArrayList;

import javax.swing.JPanel;

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.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.SortOrder;

import command.VisitaDAO;

/**
 * A simple demonstration application showing how to create a pie chart using
 * data from a {@link DefaultPieDataset}.
 */
public class StatistichePieChart extends GraficiComposite {
    private static String titolo;

    /**
     * Default constructor.
     * 
     * @param title the frame title.
     */
    public StatistichePieChart(Table result, Composite parent, int style, int indexVariabile, int indexValore) {
        super(parent, style);
        try {

            titolo = result.getColumn(indexVariabile).getText().toUpperCase() + " - "
                    + result.getColumn(indexValore).getText().toUpperCase();
            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));

            JPanel chartPanel = createDemoPanel(result, indexVariabile, indexValore);
            Frame graphFrame = SWT_AWT.new_Frame(cmp);
            graphFrame.add(chartPanel);
            graphFrame.pack();

            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));
        } catch (Exception e) {
            alertGraficoNonDisp();
        }
    }

    /**
     * Creates a sample dataset.
     * 
     * @return A sample dataset.
     */
    private static PieDataset createDataset(Table results, int indexVariabile, int indexValore) {
        DefaultPieDataset dataset = new DefaultPieDataset();
        for (TableItem item : results.getItems()) {
            dataset.setValue(item.getText(indexVariabile), new Double(item.getText(indexValore)));
            dataset.sortByKeys(SortOrder.ASCENDING);
        }
        return dataset;
    }

    /**
     * Creates a chart.
     * 
     * @param dataset the dataset.
     * @return A chart.
     */
    private static JFreeChart createChart(PieDataset dataset) {

        JFreeChart chart = ChartFactory.createPieChart(titolo, // chart
                // title
                dataset, // data
                true, // include legend
                true, false);

        PiePlot plot = (PiePlot) chart.getPlot();
        plot.setSectionOutlinesVisible(false);
        plot.setNoDataMessage("No data available");

        return chart;

    }

    /**
     * Creates a panel for the demo (used by SuperDemo.java).
     * 
     * @return A panel.
     */
    public static JPanel createDemoPanel(Table risultati, int indexVariabile, int indexValore) {
        JFreeChart chart = createChart(createDataset(risultati, indexVariabile, indexValore));
        return new ChartPanel(chart);
    }

}