Example usage for org.jfree.data.extension.impl PieDatasetSelectionExtension PieDatasetSelectionExtension

Introduction

In this page you can find the example usage for org.jfree.data.extension.impl PieDatasetSelectionExtension PieDatasetSelectionExtension.

Prototype

public PieDatasetSelectionExtension(PieDataset dataset) 

Source Link

Document

Creates a separate selection extension for the specified dataset.

Usage

From source file:org.jfree.chart.demo.selection.SelectionDemo6Pie.java

public final JPanel createDemoPanel() {
    this.dataset = createDataset();
    //extend dataset and add selection change listener for the demo
    DatasetSelectionExtension<PieCursor<String>> datasetExtension = new PieDatasetSelectionExtension<String>(
            this.dataset);
    datasetExtension.addChangeListener(this);

    //standard setup
    JFreeChart chart = createChart(this.dataset, datasetExtension);
    ChartPanel panel = new ChartPanel(chart);
    panel.setMouseWheelEnabled(true);/*from   w  w  w.  ja v a2 s. c o m*/

    //add a selection handler with shift modifier for clicking
    RegionSelectionHandler selectionHandler = new FreeRegionSelectionHandler();
    AbstractMouseHandler clickHandler = new MouseClickSelectionHandler(InputEvent.SHIFT_MASK);
    panel.addMouseHandler(selectionHandler);
    panel.addMouseHandler(clickHandler);
    panel.removeMouseHandler(panel.getZoomHandler());

    // add a selection manager
    DatasetExtensionManager dExManager = new DatasetExtensionManager();
    dExManager.registerDatasetExtension(datasetExtension);
    panel.setSelectionManager(new EntitySelectionManager(panel, new Dataset[] { dataset }, dExManager));

    return panel;
}

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