org.pentaho.plugin.jfreereport.reportcharts.RingChartExpression.java Source code

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Here is the source code for org.pentaho.plugin.jfreereport.reportcharts.RingChartExpression.java

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/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2017 Hitachi Vantara..  All rights reserved.
*/

package org.pentaho.plugin.jfreereport.reportcharts;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.RingPlot;
import org.jfree.data.general.Dataset;
import org.jfree.data.general.PieDataset;

public class RingChartExpression extends PieChartExpression {

    private static final long serialVersionUID = 8157232155813173422L;

    private double sectionDepth;

    public RingChartExpression() {
        sectionDepth = 0.5;
    }

    protected JFreeChart computeChart(final Dataset dataset) {
        PieDataset pieDataset = null;
        if (dataset instanceof PieDataset) {
            pieDataset = (PieDataset) dataset;
        }

        return ChartFactory.createRingChart(computeTitle(), pieDataset, isShowLegend(), false, false);
    }

    protected void configureChart(final JFreeChart chart) {
        super.configureChart(chart);

        final RingPlot ringPlot = (RingPlot) chart.getPlot();
        ringPlot.setSectionDepth(sectionDepth);
    }

    public double getSectionDepth() {
        return sectionDepth;
    }

    public void setSectionDepth(final double sectionDepth) {
        this.sectionDepth = sectionDepth;
    }

}