ChartFactory.java 文件源码

/**
 * Creates a stacked bar chart with default settings.  The chart object 
 * returned by this method uses a {@link CategoryPlot} instance as the
 * plot, with a {@link CategoryAxis} for the domain axis, a 
 * {@link NumberAxis} as the range axis, and a {@link StackedBarRenderer} 
 * as the renderer.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param domainAxisLabel  the label for the category axis 
 *                         (<code>null</code> permitted).
 * @param rangeAxisLabel  the label for the value axis 
 *                        (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param orientation  the orientation of the chart (horizontal or 
 *                     vertical) (<code>null</code> not permitted).
 * @param legend  a flag specifying whether or not a legend is required.
 * @param tooltips  configure chart to generate tool tips?
 * @param urls  configure chart to generate URLs?
 *
 * @return A stacked bar chart.
 */
public static JFreeChart createStackedBarChart(String title,
                                               String domainAxisLabel,
                                               String rangeAxisLabel,
                                               CategoryDataset dataset,
                                               PlotOrientation orientation,
                                               boolean legend,
                                               boolean tooltips,
                                               boolean urls) {

    if (orientation == null) {
        throw new IllegalArgumentException("Null 'orientation' argument.");
    }

    CategoryAxis categoryAxis = new CategoryAxis(domainAxisLabel);
    ValueAxis valueAxis = new NumberAxis(rangeAxisLabel);

    StackedBarRenderer renderer = new StackedBarRenderer();
    if (tooltips) {
        renderer.setBaseToolTipGenerator(
                new StandardCategoryToolTipGenerator());
    }
    if (urls) {
        renderer.setBaseItemURLGenerator(
                new StandardCategoryURLGenerator());
    }

    CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis, 
            renderer);
    plot.setOrientation(orientation);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);

    return chart;

}