Java Code Examples for org.jfree.chart.title.TextTitle#setPosition()

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    setDataset(dataset);
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    if (dataset != null) {
    	  dataset.addChangeListener(this);
    	}
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    if (dataset != null) {
        setDatasetGroup(dataset.getGroup());
        dataset.addChangeListener(this);
    }
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    this.dataset = dataset;
    PiePlot piePlot = new PiePlot(null);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
}
 

/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public MultiplePiePlot(CategoryDataset dataset) {
    super();
    setDataset(dataset);
    PiePlot piePlot = new PiePlot(null);
    piePlot.setIgnoreNullValues(true);
    this.pieChart = new JFreeChart(piePlot);
    this.pieChart.removeLegend();
    this.dataExtractOrder = TableOrder.BY_COLUMN;
    this.pieChart.setBackgroundPaint(null);
    TextTitle seriesTitle = new TextTitle("Series Title",
            new Font("SansSerif", Font.BOLD, 12));
    seriesTitle.setPosition(RectangleEdge.BOTTOM);
    this.pieChart.setTitle(seriesTitle);
    this.aggregatedItemsKey = "Other";
    this.aggregatedItemsPaint = Color.lightGray;
    this.sectionPaints = new HashMap();
    this.legendItemShape = new Ellipse2D.Double(-4.0, -4.0, 8.0, 8.0);
}
 

/**
     * Creates a new plot.
     *
     * @param dataset  the dataset (<code>null</code> permitted).
     */
    public MultiplePiePlot(CategoryDataset dataset) {
        super();
// start of generated patch
if(dataset!=null){
dataset.addChangeListener(this);
}
this.dataset=dataset;
PiePlot piePlot=new PiePlot(null);
this.pieChart=new JFreeChart(piePlot);
// end of generated patch
/* start of original code
        this.dataset = dataset;
        PiePlot piePlot = new PiePlot(null);
        this.pieChart = new JFreeChart(piePlot);
 end of original code*/
        this.pieChart.removeLegend();
        this.dataExtractOrder = TableOrder.BY_COLUMN;
        this.pieChart.setBackgroundPaint(null);
        TextTitle seriesTitle = new TextTitle("Series Title",
                new Font("SansSerif", Font.BOLD, 12));
        seriesTitle.setPosition(RectangleEdge.BOTTOM);
        this.pieChart.setTitle(seriesTitle);
        this.aggregatedItemsKey = "Other";
        this.aggregatedItemsPaint = Color.lightGray;
        this.sectionPaints = new HashMap();
    }
 

private void setPlotMessage(String messageText) {
    chart.getXYPlot().clearAnnotations();
    TextTitle tt = new TextTitle(messageText);
    tt.setTextAlignment(HorizontalAlignment.RIGHT);
    tt.setFont(chart.getLegend().getItemFont());
    tt.setBackgroundPaint(new Color(200, 200, 255, 50));
    tt.setFrame(new BlockBorder(Color.white));
    tt.setPosition(RectangleEdge.BOTTOM);
    XYTitleAnnotation message = new XYTitleAnnotation(0.5, 0.5, tt, RectangleAnchor.CENTER);
    chart.getXYPlot().addAnnotation(message);
}
 

protected void handleTitleSettings(
		TextTitle title, 
		TitleSettings titleSettings, 
		JRFont titleFont,
		Paint titleForegroundPaint,
		RectangleEdge titleEdge)
{
	JRBaseFont font = new JRBaseFont();
	FontUtil.copyNonNullOwnProperties(titleSettings.getFont(), font);
	FontUtil.copyNonNullOwnProperties(titleFont, font);
	font = new JRBaseFont(getChart(), font);
	title.setFont(getFontUtil().getAwtFont(font, getLocale()));
	
	HorizontalAlignment hAlign = titleSettings.getHorizontalAlignment();
	if (hAlign != null)
		title.setHorizontalAlignment(hAlign);
	
	VerticalAlignment vAlign = titleSettings.getVerticalAlignment();
	if (vAlign != null)
		title.setVerticalAlignment(vAlign);
	
	RectangleInsets padding = titleSettings.getPadding();
	if (padding != null)
		title.setPadding(padding);
	
	if (titleForegroundPaint != null)
		title.setPaint(titleForegroundPaint);

	Paint backPaint = titleSettings.getBackgroundPaint() != null ? titleSettings.getBackgroundPaint().getPaint() : null;
	if (backPaint != null)
		title.setBackgroundPaint(backPaint);
	if (titleEdge != null)
		title.setPosition(titleEdge);
}
 

/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011",  // chart title
        dataset,            // data
        false,              // no legend
        true,               // tooltips
        false               // no URL generation
    );

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setBaseSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}
 

/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011",  // chart title
        dataset,            // data
        false,              // no legend
        true,               // tooltips
        false               // no URL generation
    );

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setBaseSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}
 

/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011",  // chart title
        dataset,            // data
        false,              // no legend
        true,               // tooltips
        false               // no URL generation
    );

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setBaseSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}
 

/**
 *
 */
protected void configureChart(JFreeChart jfreeChart) throws JRException
{
	if (getChart().getModeValue() == ModeEnum.OPAQUE)
	{
		jfreeChart.setBackgroundPaint(getChart().getBackcolor());
	}
	else
	{
		jfreeChart.setBackgroundPaint(null);
	}
	
	RectangleEdge titleEdge = getEdge(getChart().getTitlePositionValue(), RectangleEdge.TOP);
	
	if (jfreeChart.getTitle() != null)
	{
		TextTitle title = jfreeChart.getTitle();
		title.setPaint(getChart().getTitleColor());

		title.setFont(fontUtil.getAwtFont(getFont(getChart().getTitleFont()), getLocale()));
		title.setPosition(titleEdge);
	}

	String subtitleText = evaluateTextExpression(getChart().getSubtitleExpression());
	if (subtitleText != null)
	{
		TextTitle subtitle = new TextTitle(subtitleText);
		subtitle.setPaint(getChart().getSubtitleColor());

		subtitle.setFont(fontUtil.getAwtFont(getFont(getChart().getSubtitleFont()), getLocale()));
		subtitle.setPosition(titleEdge);

		jfreeChart.addSubtitle(subtitle);
	}

	// Apply all of the legend formatting options
	LegendTitle legend = jfreeChart.getLegend();
	if (legend != null)
	{
		legend.setItemPaint(getChart().getLegendColor());

		if (getChart().getOwnLegendBackgroundColor() == null)// in a way, legend backcolor inheritance from chart is useless
		{
			legend.setBackgroundPaint(null);
		}
		else
		{
			legend.setBackgroundPaint(getChart().getLegendBackgroundColor());
		}

		legend.setItemFont(fontUtil.getAwtFont(getFont(getChart().getLegendFont()), getLocale()));
		legend.setPosition(getEdge(getChart().getLegendPositionValue(), RectangleEdge.BOTTOM));
	}
	
	configurePlot(jfreeChart.getPlot());
}
 

private void computeCoefficientOfDetermination() {
    int numberOfItems = scatterpointsDataset.getSeries(0).getItemCount();
    double arithmeticMeanOfX = 0;  //arithmetic mean of X
    double arithmeticMeanOfY = 0;  //arithmetic mean of Y
    double varX = 0;    //variance of X
    double varY = 0;    //variance of Y
    double coVarXY = 0;  //covariance of X and Y;
    //compute arithmetic means
    for (int i = 0; i < numberOfItems; i++) {
        arithmeticMeanOfX += scatterpointsDataset.getXValue(0, i);
        arithmeticMeanOfY += scatterpointsDataset.getYValue(0, i);
    }
    arithmeticMeanOfX /= numberOfItems;
    arithmeticMeanOfY /= numberOfItems;
    //compute variances and covariance
    for (int i = 0; i < numberOfItems; i++) {
        varX += Math.pow(scatterpointsDataset.getXValue(0, i) - arithmeticMeanOfX, 2);
        varY += Math.pow(scatterpointsDataset.getYValue(0, i) - arithmeticMeanOfY, 2);
        coVarXY += (scatterpointsDataset.getXValue(0, i) - arithmeticMeanOfX) * (scatterpointsDataset.getYValue(0,
                                                                                                                i) -
                arithmeticMeanOfY);
    }
    //computation of coefficient of determination
    double r2 = Math.pow(coVarXY, 2) / (varX * varY);
    r2 = MathUtils.round(r2, Math.pow(10.0, 5));

    final double[] coefficients = Regression.getOLSRegression(scatterpointsDataset, 0);
    final double intercept = coefficients[0];
    final double slope = coefficients[1];
    final String linearEquation;
    if (intercept >= 0) {
        linearEquation = "y = " + (float) slope + "x + " + (float) intercept;
    } else {
        linearEquation = "y = " + (float) slope + "x - " + Math.abs((float) intercept);
    }

    TextTitle tt = new TextTitle(linearEquation + "\nR² = " + r2);
    tt.setTextAlignment(HorizontalAlignment.RIGHT);
    tt.setFont(chart.getLegend().getItemFont());
    tt.setBackgroundPaint(new Color(200, 200, 255, 100));
    tt.setFrame(new BlockBorder(Color.white));
    tt.setPosition(RectangleEdge.BOTTOM);

    r2Annotation = new XYTitleAnnotation(0.98, 0.02, tt,
                                         RectangleAnchor.BOTTOM_RIGHT);
    r2Annotation.setMaxWidth(0.48);
    getPlot().addAnnotation(r2Annotation);
}
 

/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011",  // chart title
        dataset,            // data
        false,              // no legend
        true,               // tooltips
        false               // no URL generation
    );

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setBaseSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}
 

/**
 * Creates a chart.
 *
 * @param dataset  the dataset.
 *
 * @return A chart.
 */
private static JFreeChart createChart(PieDataset dataset) {

    JFreeChart chart = ChartFactory.createPieChart(
        "Smart Phones Manufactured / Q3 2011",  // chart title
        dataset,            // data
        false,              // no legend
        true,               // tooltips
        false               // no URL generation
    );

    // set a custom background for the chart
    chart.setBackgroundPaint(new GradientPaint(new Point(0, 0), 
            new Color(20, 20, 20), new Point(400, 200), Color.DARK_GRAY));

    // customise the title position and font
    TextTitle t = chart.getTitle();
    t.setHorizontalAlignment(HorizontalAlignment.LEFT);
    t.setPaint(new Color(240, 240, 240));
    t.setFont(new Font("Arial", Font.BOLD, 26));

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setBackgroundPaint(null);
    plot.setInteriorGap(0.04);
    plot.setOutlineVisible(false);

    // use gradients and white borders for the section colours
    plot.setSectionPaint("Others", createGradientPaint(new Color(200, 200, 255), Color.BLUE));
    plot.setSectionPaint("Samsung", createGradientPaint(new Color(255, 200, 200), Color.RED));
    plot.setSectionPaint("Apple", createGradientPaint(new Color(200, 255, 200), Color.GREEN));
    plot.setSectionPaint("Nokia", createGradientPaint(new Color(200, 255, 200), Color.YELLOW));
    plot.setBaseSectionOutlinePaint(Color.WHITE);
    plot.setSectionOutlinesVisible(true);
    plot.setBaseSectionOutlineStroke(new BasicStroke(2.0f));

    // customise the section label appearance
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 20));
    plot.setLabelLinkPaint(Color.WHITE);
    plot.setLabelLinkStroke(new BasicStroke(2.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.WHITE);
    plot.setLabelBackgroundPaint(null);
    
    // add a subtitle giving the data source
    TextTitle source = new TextTitle("Source: http://www.bbc.co.uk/news/business-15489523", 
            new Font("Courier New", Font.PLAIN, 12));
    source.setPaint(Color.WHITE);
    source.setPosition(RectangleEdge.BOTTOM);
    source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
    chart.addSubtitle(source);
    return chart;

}