/*

  StatCVS - CVS statistics generation 

  Copyright (C) 2006 Benoit Xhenseval

  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

  */

 package net.sf.statcvs.output;

 import java.awt.Dimension;

 import java.util.Iterator;

 import java.util.List;

 import net.sf.statcvs.Messages;

 import net.sf.statcvs.charts.ChartImage;

 import org.jfree.chart.ChartFactory;

 import org.jfree.chart.JFreeChart;

 import org.jfree.chart.annotations.XYAnnotation;

 import org.jfree.chart.axis.DateAxis;

 import org.jfree.chart.axis.NumberAxis;

 import org.jfree.chart.plot.PlotOrientation;

 import org.jfree.chart.plot.XYPlot;

 import org.jfree.chart.renderer.xy.XYBarRenderer;

 import org.jfree.chart.renderer.xy.XYStepRenderer;

 import org.jfree.data.time.TimeSeries;

 import org.jfree.data.time.TimeSeriesCollection;

 import org.jfree.data.xy.IntervalXYDataset;

 /**

  * Class for producing Lines Of Code with Churn charts

  * 

  * @author Benoit Xhenseval (www.ObjectLab.co.uk)

  */

 public class LOCChurnChartMaker {

     private static final double LOWER_MARGIN = 0.40;

     private ChartImage chartFile = null;

     /**

      * Creates a Lines Of Code chart from a <tt>BasicTimeSeries</tt> and saves

      * it as PNG

      * 

      * @param churnSeries

      *            the Churn history

      * @param locSeries

      *            the LOC history

      * @param title

      *            the chart title

      * @param fileName

      *            the filename where the chart will be saved

      * @param width

      *            width of PNG in pixels

      * @param height

      *            height of PNG in pixels

      * @param annotations

      */

     public LOCChurnChartMaker(final ReportConfig config, final TimeSeries churnSeries, final TimeSeries locSeries, final String title, final String fileName,

             final Dimension size, final List annotations) {

         final TimeSeriesCollection collection = new TimeSeriesCollection(locSeries);

         // collection.setDomainIsPointsInTime(false);

         final TimeSeriesCollection churnCollection = new TimeSeriesCollection(churnSeries);

         // churnCollection.setDomainIsPointsInTime(false);

         final JFreeChart chart = createChart(collection, churnCollection, title, annotations);

         chartFile = config.createChartImage(fileName, title, chart, size);

     }

     public ChartImage toFile() {

         return this.chartFile;

     }

     private JFreeChart createChart(final TimeSeriesCollection locCollection, final TimeSeriesCollection churnSet, final String title, final List annotations) {

         final String domain = Messages.getString("TIME_LOC_DOMAIN");

         final String range = Messages.getString("TIME_LOC_RANGE");

         final IntervalXYDataset data = locCollection;

         final boolean legend = true;// (locCollection.getSeriesCount() > 1);

         final JFreeChart chart = ChartFactory.createXYBarChart(ConfigurationOptions.getProjectName() + ":" + title, domain, true, range, data,

                 PlotOrientation.VERTICAL, legend, false, false);

         final XYPlot plot = chart.getXYPlot();

         plot.setRenderer(new XYStepRenderer());

         // new...

         final NumberAxis rangeAxis1 = (NumberAxis) plot.getRangeAxis();

         rangeAxis1.setLowerMargin(LOWER_MARGIN); // to leave room for volume bars

         final DateAxis domainAxis = (DateAxis) plot.getDomainAxis();

         domainAxis.setVerticalTickLabels(true);

         // now add the churnSet

         final NumberAxis rangeAxis2 = new NumberAxis(Messages.getString("CHURN_RANGE"));

         rangeAxis2.setUpperMargin(1.00); // to leave room for price line

         plot.setRangeAxis(1, rangeAxis2);

         plot.setDataset(1, churnSet);

         plot.setRangeAxis(1, rangeAxis2);

         plot.mapDatasetToRangeAxis(1, 1);

         final XYBarRenderer renderer2 = new XYBarRenderer(0.20);

         plot.setRenderer(1, renderer2);

         if (annotations != null) {

             for (final Iterator it = annotations.iterator(); it.hasNext();) {

                 plot.addAnnotation((XYAnnotation) it.next());

             }

         }

         return chart;

     }

 }