public class CombinedRangeXYPlotTests extends TestCase  
        implements ChartChangeListener {

    /** A list of the events received. */
    private List events = new java.util.ArrayList();
    
    /**
     * Receives a chart change event.
     * 
     * @param event  the event.
     */
    public void chartChanged(ChartChangeEvent event) {
        this.events.add(event);
    }

    /**
     * Returns the tests as a test suite.
     *
     * @return The test suite.
     */
    public static Test suite() {
        return new TestSuite(CombinedRangeXYPlotTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param name  the name of the tests.
     */
    public CombinedRangeXYPlotTests(String name) {
        super(name);
    }

    /**
     * Test the equals method.
     */
    public void testEquals() {
        CombinedRangeXYPlot plot1 = createPlot();
        CombinedRangeXYPlot plot2 = createPlot();
        assertTrue(plot1.equals(plot2));    
        assertTrue(plot2.equals(plot1));
    }

    /**
     * This is a test to replicate the bug report 987080.
     */
    public void testRemoveSubplot() {
        CombinedRangeXYPlot plot = new CombinedRangeXYPlot();
        XYPlot plot1 = new XYPlot();
        XYPlot plot2 = new XYPlot();
        plot.add(plot1);
        plot.add(plot2);
        // remove plot2, but plot1 is removed instead
        plot.remove(plot2);
        List plots = plot.getSubplots();
        assertTrue(plots.get(0) == plot1);
    }
    
    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        CombinedRangeXYPlot plot1 = createPlot();        
        CombinedRangeXYPlot plot2 = null;
        try {
            plot2 = (CombinedRangeXYPlot) plot1.clone();
        }
        catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        assertTrue(plot1 != plot2);
        assertTrue(plot1.getClass() == plot2.getClass());
        assertTrue(plot1.equals(plot2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        CombinedRangeXYPlot plot1 = createPlot();
        CombinedRangeXYPlot plot2 = null;
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(plot1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                    buffer.toByteArray()));
            plot2 = (CombinedRangeXYPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(plot1, plot2);
    }
    
    /**
     * Check that only one chart change event is generated by a change to a
     * subplot.
     */
    public void testNotification() {
        CombinedRangeXYPlot plot = createPlot();
        JFreeChart chart = new JFreeChart(plot);
        chart.addChangeListener(this);
        XYPlot subplot1 = (XYPlot) plot.getSubplots().get(0);
        NumberAxis xAxis = (NumberAxis) subplot1.getDomainAxis();
        xAxis.setAutoRangeIncludesZero(!xAxis.getAutoRangeIncludesZero());
        assertEquals(1, this.events.size());
        
        // a redraw should NOT trigger another change event
        BufferedImage image = new BufferedImage(200, 100, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        this.events.clear();
        chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
        assertTrue(this.events.isEmpty());
    }
    
    /**
     * Creates a sample dataset.
     *
     * @return Series 1.
     */
    private XYDataset createDataset1() {

        XYSeries series1 = new XYSeries("Series 1");
        series1.add(10.0, 12353.3);
        series1.add(20.0, 13734.4);
        series1.add(30.0, 14525.3);
        series1.add(40.0, 13984.3);
        series1.add(50.0, 12999.4);
        series1.add(60.0, 14274.3);
        series1.add(70.0, 15943.5);
        series1.add(80.0, 14845.3);
        series1.add(90.0, 14645.4);
        series1.add(100.0, 16234.6);
        series1.add(110.0, 17232.3);
        series1.add(120.0, 14232.2);
        series1.add(130.0, 13102.2);
        series1.add(140.0, 14230.2);
        series1.add(150.0, 11235.2);

        XYSeries series2 = new XYSeries("Series 2");
        series2.add(10.0, 15000.3);
        series2.add(20.0, 11000.4);
        series2.add(30.0, 17000.3);
        series2.add(40.0, 15000.3);
        series2.add(50.0, 14000.4);
        series2.add(60.0, 12000.3);
        series2.add(70.0, 11000.5);
        series2.add(80.0, 12000.3);
        series2.add(90.0, 13000.4);
        series2.add(100.0, 12000.6);
        series2.add(110.0, 13000.3);
        series2.add(120.0, 17000.2);
        series2.add(130.0, 18000.2);
        series2.add(140.0, 16000.2);
        series2.add(150.0, 17000.2);

        XYSeriesCollection collection = new XYSeriesCollection();
        collection.addSeries(series1);
        collection.addSeries(series2);
        return collection;

    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 2.
     */
    private XYDataset createDataset2() {

        // create dataset 2...
        XYSeries series2 = new XYSeries("Series 3");

        series2.add(10.0, 16853.2);
        series2.add(20.0, 19642.3);
        series2.add(30.0, 18253.5);
        series2.add(40.0, 15352.3);
        series2.add(50.0, 13532.0);
        series2.add(100.0, 12635.3);
        series2.add(110.0, 13998.2);
        series2.add(120.0, 11943.2);
        series2.add(130.0, 16943.9);
        series2.add(140.0, 17843.2);
        series2.add(150.0, 16495.3);
        series2.add(160.0, 17943.6);
        series2.add(170.0, 18500.7);
        series2.add(180.0, 19595.9);

        return new XYSeriesCollection(series2);

    }

    /**
     * Creates a sample plot.
     * 
     * @return A sample plot.
     */
    private CombinedRangeXYPlot createPlot() {
        // create subplot 1...
        XYDataset data1 = createDataset1();
        XYItemRenderer renderer1 = new StandardXYItemRenderer();
        NumberAxis xAxis1 = new NumberAxis("X1");
        XYPlot subplot1 = new XYPlot(data1, xAxis1, null, renderer1);
        subplot1.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
         
        XYTextAnnotation annotation 
                = new XYTextAnnotation("Hello!", 50.0, 10000.0);
        annotation.setFont(new Font("SansSerif", Font.PLAIN, 9));
        annotation.setRotationAngle(Math.PI / 4.0);
        subplot1.addAnnotation(annotation);
         
        // create subplot 2...
        XYDataset data2 = createDataset2();
        XYItemRenderer renderer2 = new StandardXYItemRenderer();
        NumberAxis xAxis2 = new NumberAxis("X2");
        xAxis2.setAutoRangeIncludesZero(false);
        XYPlot subplot2 = new XYPlot(data2, xAxis2, null, renderer2);
        subplot2.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT); 

        // parent plot...
        CombinedRangeXYPlot plot = new CombinedRangeXYPlot(new NumberAxis(
                "Range"));
        plot.setGap(10.0);
        
        // add the subplots...
        plot.add(subplot1, 1);
        plot.add(subplot2, 1);
        plot.setOrientation(PlotOrientation.VERTICAL);
        return plot;