Example usage for org.jfree.chart.plot PiePlot getDrawingSupplier

Introduction

In this page you can find the example usage for org.jfree.chart.plot PiePlot getDrawingSupplier.

Prototype

public DrawingSupplier getDrawingSupplier() 

Source Link

Document

Returns the drawing supplier for the plot.

Usage

From source file:com.manydesigns.portofino.chart.Chart1DGenerator.java

public JFreeChart generate(ChartDefinition chartDefinition, Persistence persistence, Locale locale) {
    DefaultPieDataset dataset = new DefaultPieDataset();
    java.util.List<Object[]> result;
    String query = chartDefinition.getQuery();
    logger.info(query);/*from   w  ww.  j a v  a 2  s . c o  m*/
    Session session = persistence.getSession(chartDefinition.getDatabase());
    result = QueryUtils.runSql(session, query);
    for (Object[] current : result) {
        ComparableWrapper key = new ComparableWrapper((Comparable) current[0]);
        dataset.setValue(key, (Number) current[1]);
        if (current.length > 2) {
            key.setLabel(current[2].toString());
        }
    }

    JFreeChart chart = createChart(chartDefinition, dataset);

    chart.setAntiAlias(isAntiAlias());

    // impostiamo il bordo invisibile
    // eventualmente e' il css a fornirne uno
    // eventualmente e' il css a fornirne uno
    chart.setBorderVisible(isBorderVisible());

    // impostiamo il titolo
    TextTitle title = chart.getTitle();
    title.setFont(titleFont);
    title.setMargin(10.0, 0.0, 0.0, 0.0);

    // ottieni il Plot
    PiePlot plot = (PiePlot) chart.getPlot();

    String urlExpression = chartDefinition.getUrlExpression();
    if (!StringUtils.isBlank(urlExpression)) {
        PieURLGenerator urlGenerator = new ChartPieUrlGenerator(urlExpression);
        plot.setURLGenerator(urlGenerator);
    } else {
        plot.setURLGenerator(null);
    }

    // il plot ha sfondo e bordo trasparente
    // (quindi si vede il colore del chart)
    plot.setBackgroundPaint(transparentColor);
    plot.setOutlinePaint(transparentColor);

    // Modifico il toolTip
    // hongliangpan add
    // :?{0}  {1}  {2} ? ,???
    plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0}={1}({2})",
            NumberFormat.getNumberInstance(), new DecimalFormat("0.00%")));
    // {0}={1}({2})
    plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator("{0}"));
    // ?(0.0-1.0)
    // plot.setForegroundAlpha(1.0f);
    // imposta la distanza delle etichette dal plot
    plot.setLabelGap(0.03);
    // plot.setLabelGenerator(new MyPieSectionLabelGenerator());

    // imposta il messaggio se non ci sono dati
    plot.setNoDataMessage(ElementsThreadLocals.getText("no.data.available"));

    plot.setCircular(true);

    plot.setBaseSectionOutlinePaint(Color.BLACK);

    DrawingSupplier supplier = new DesaturatedDrawingSupplier(plot.getDrawingSupplier());
    plot.setDrawingSupplier(supplier);
    // ?
    plot.setForegroundAlpha(1.0f);
    // impostiamo il titolo della legenda
    String legendString = chartDefinition.getLegend();
    Title subtitle = new TextTitle(legendString, legendFont, Color.BLACK, RectangleEdge.BOTTOM,
            HorizontalAlignment.CENTER, VerticalAlignment.CENTER, new RectangleInsets(0, 0, 0, 0));
    subtitle.setMargin(0, 0, 5, 0);
    chart.addSubtitle(subtitle);

    // impostiamo la legenda
    LegendTitle legend = chart.getLegend();
    legend.setBorder(0, 0, 0, 0);
    legend.setItemFont(legendItemFont);
    int legendMargin = 10;
    legend.setMargin(0.0, legendMargin, legendMargin, legendMargin);
    legend.setBackgroundPaint(transparentColor);

    // impostiamo un gradiente orizzontale
    Paint chartBgPaint = new GradientPaint(0, 0, new Color(255, 253, 240), 0, getHeight(), Color.WHITE);
    chart.setBackgroundPaint(chartBgPaint);
    return chart;
}

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