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

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

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/*
* Copyright 2002 - 2017 Hitachi Vantara.  All rights reserved.
* 
* This software was developed by Hitachi Vantara and is provided under the terms
* of the Mozilla Public License, Version 1.1, or any later version. You may not use
* this file except in compliance with the license. If you need a copy of the license,
* please go to http://www.mozilla.org/MPL/MPL-1.1.txt. TThe Initial Developer is Pentaho Corporation.
*
* Software distributed under the Mozilla Public License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to
* the license for the specific language governing your rights and limitations.
*/

package org.pentaho.plugin.jfreereport.reportcharts;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.xy.XYDifferenceRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYStepAreaRenderer;
import org.jfree.chart.renderer.xy.XYStepRenderer;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;

public class ExtendedXYLineChartExpression extends XYLineChartExpression {

    public static final String STEP_CHART_STR = "StepChart"; //$NON-NLS-1$
    public static final String STEP_AREA_CHART_STR = "StepAreaChart"; //$NON-NLS-1$
    public static final String DIFFERENCE_CHART_STR = "DifferenceChart"; //$NON-NLS-1$

    private static final long serialVersionUID = -167639029520233427L;
    private String chartType;

    public ExtendedXYLineChartExpression() {
        chartType = null;
    }

    protected JFreeChart computeXYChart(final XYDataset xyDataset) {
        final JFreeChart rtn;
        if (xyDataset instanceof TimeSeriesCollection) {
            rtn = ChartFactory.createTimeSeriesChart(computeTitle(), getDomainTitle(), getRangeTitle(), xyDataset,
                    isShowLegend(), false, false);
        } else {
            final PlotOrientation orientation = computePlotOrientation();
            rtn = ChartFactory.createXYLineChart(computeTitle(), getDomainTitle(), getRangeTitle(), xyDataset,
                    orientation, isShowLegend(), false, false);
        }

        final String chartType = getChartType();
        if (STEP_AREA_CHART_STR.equals(chartType)) {
            final XYItemRenderer renderer;
            if (isMarkersVisible()) {
                renderer = new XYStepAreaRenderer(XYStepAreaRenderer.AREA_AND_SHAPES);
            } else {
                renderer = new XYStepAreaRenderer(XYStepAreaRenderer.AREA);
            }
            rtn.getXYPlot().setRenderer(renderer);
        } else if (STEP_CHART_STR.equals(chartType)) {
            rtn.getXYPlot().setRenderer(new XYStepRenderer(null, null));
        } else if (DIFFERENCE_CHART_STR.equals(chartType)) {
            rtn.getXYPlot().setRenderer(new XYDifferenceRenderer());
        }
        configureLogarithmicAxis(rtn.getXYPlot());
        return rtn;
    }

    public String getChartType() {
        return chartType;
    }

    public void setChartType(final String chartType) {
        this.chartType = chartType;
    }

}