Example usage for org.jfree.chart.renderer.xy XYItemRenderer getLegendItem

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.xy XYItemRenderer getLegendItem.

Prototype

public LegendItem getLegendItem(int datasetIndex, int series);

Source Link

Document

Returns a legend item for a series from a dataset.

Usage

From source file:ucar.unidata.idv.control.chart.MyXYPlot.java

/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's renderer, since the renderer is responsible for the visual
 * representation of the data./*from  w w w  .  j  a v a2  s  .  co  m*/
 *
 * @return The legend items.
 */
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    int count = this.datasets.size();
    for (int datasetIndex = 0; datasetIndex < count; datasetIndex++) {
        XYDataset dataset = getDataset(datasetIndex);
        if (dataset != null) {
            XYItemRenderer renderer = getRenderer(datasetIndex);
            if (renderer == null) {
                renderer = getRenderer(0);
            }
            if (renderer != null) {
                int seriesCount = dataset.getSeriesCount();
                for (int i = 0; i < seriesCount; i++) {
                    if (renderer.isSeriesVisible(i) && renderer.isSeriesVisibleInLegend(i)) {
                        LegendItem item = renderer.getLegendItem(datasetIndex, i);
                        if (item != null) {
                            result.add(item);
                        }
                    }
                }
            }
        }
    }
    return result;
}

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