segmentedhighlowchartdemo.java

JfreeChart 常用图表例子

/* ===========================================================
 * 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.]
 *
 * ------------------------------
 * SegmentedHighLowChartDemo.java
 * ------------------------------
 * (C) Copyright 2003, 2004, by Bill Kelemen and Contributors.
 *
 * Original Author:  Bill Kelemen;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * $Id: SegmentedHighLowChartDemo.java,v 1.11 2004/04/26 19:12:03 taqua Exp $
 *
 * Changes
 * -------
 * 24-May-2003 : Version 1 (BK);
 * 12-Nov-2003 : Added roll factor to tick units to improve labelling on date axis (DG);
 * 
 */

package org.jfree.chart.demo;

import java.text.SimpleDateFormat;
import java.util.Calendar;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.DateTickUnit;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.SegmentedTimeline;
import org.jfree.chart.axis.TickUnits;
import org.jfree.data.xy.DefaultHighLowDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A demo showing a daily and intraday segmented high-low-open-close charts.
 *
 * @author Bill Kelemen
 */
public class SegmentedHighLowChartDemo extends ApplicationFrame {

    /**
     * A demonstration application showing a high-low-open-close chart using a
     * segmented or non-segmented axis.
     *
     * @param title  the frame title.
     * @param useSegmentedAxis use a segmented axis for this demo?
     * @param timelineType Type of timeline to use: 1=Monday through Friday, 2=Intraday
     */
    public SegmentedHighLowChartDemo(final String title,
                                     final boolean useSegmentedAxis,
                                     final int timelineType) {

        super(title);

        System.out.println("\nMaking SegmentedHighLowChartDemo(" + title + ")");

        // create a Calendar object with today's date at midnight
        final Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);

        // create a timeline for the demo
        SegmentedTimeline timeline = null;
        switch (timelineType) {
            case 1:
                timeline = SegmentedTimeline.newMondayThroughFridayTimeline();
                break;

            case 2:
                timeline = SegmentedTimeline.newFifteenMinuteTimeline();

                final Calendar cal2 = (Calendar) cal.clone();
                cal2.add(Calendar.YEAR, 1);

                // add 1 year of baseTimeline's excluded segments (Saturdays and Sundays) as
                // exceptions of the intraday timeline
                timeline.addBaseTimelineExclusions(cal.getTime().getTime(),
                    cal2.getTime().getTime());
                break;

            default:
                System.out.println("Invalid timelineType.");
                System.exit(1);
        }


        // create a data set that has data for trading days (Monday through Friday).
        final DefaultHighLowDataset dataset =
            DemoDatasetFactory.createSegmentedHighLowDataset(timeline, cal.getTime());

        final JFreeChart chart;
        if (useSegmentedAxis) {
            chart = ChartFactory.createHighLowChart(
                title,
                "Time", "Value",
                dataset, timeline, true);
        } 
        else {
            chart = ChartFactory.createHighLowChart(
                title,
                "Time", "Value",
                dataset, true);
        }

        final DateAxis axis = (DateAxis) chart.getXYPlot().getDomainAxis();
        axis.setAutoRange(true);
        final TickUnits units = new TickUnits();
        units.add(new DateTickUnit(DateTickUnit.DAY, 1, DateTickUnit.HOUR, 1, 
                                   new SimpleDateFormat("d-MMM")));
        units.add(new DateTickUnit(DateTickUnit.DAY, 2, DateTickUnit.HOUR, 1,
                                   new SimpleDateFormat("d-MMM")));
        units.add(new DateTickUnit(DateTickUnit.DAY, 7, DateTickUnit.DAY, 1,
                                   new SimpleDateFormat("d-MMM")));
        units.add(new DateTickUnit(DateTickUnit.DAY, 15,  DateTickUnit.DAY, 1,
                                   new SimpleDateFormat("d-MMM")));
        units.add(new DateTickUnit(DateTickUnit.DAY, 30, DateTickUnit.DAY, 1,
                                   new SimpleDateFormat("d-MMM")));
        axis.setStandardTickUnits(units);

        final NumberAxis vaxis = (NumberAxis) chart.getXYPlot().getRangeAxis();
        vaxis.setAutoRangeIncludesZero(false);

        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));

        setContentPane(chartPanel);

    }

    // ****************************************************************************
    // * COMMERCIAL SUPPORT / JFREECHART DEVELOPER GUIDE                          *
    // * Please note that commercial support and documentation is available from: *
    // *                                                                          *
    // * http://www.object-refinery.com/jfreechart/support.html                   *
    // *                                                                          *
    // * This is not only a great service for developers, but is a VERY IMPORTANT *
    // * source of funding for the JFreeChart project.  Please support us so that *
    // * we can continue developing free software.                                *
    // ****************************************************************************

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(final String[] args) {

        final ApplicationFrame[][] frame = new ApplicationFrame[2][2];
        frame[0][0] = new SegmentedHighLowChartDemo("Segmented Daily High-Low-Open-Close Demo", 
                                                    true, 1);
        frame[1][0] = new SegmentedHighLowChartDemo("Normal Daily High-Low-Open-Close Demo", 
                                                    false, 1);
        frame[0][1] = new SegmentedHighLowChartDemo("Segmented Intraday High-Low-Open-Close Demo", 
                                                    true, 2);
        frame[1][1] = new SegmentedHighLowChartDemo("Normal Intraday High-Low-Open-Close Demo", 
                                                    false, 2);
        for (int i = 0; i < 2; i++) {
            for (int j = 0; j < 2; j++) {
                frame[i][j].pack();
                RefineryUtilities.positionFrameOnScreen(frame[i][j], .15 + .70 * j, .25 + .50 * i);
                frame[i][j].setVisible(true);
            }
        }

    }

}