protected void buildChart() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
chart =
ChartFactory.createMultiplePieChart(
"Untitled Chart", dataset, org.jfree.util.TableOrder.BY_COLUMN, false, true, false);
chart.setAntiAlias(true);
// chartPanel = new ScrollableChartPanel(chart, true);
chartPanel = buildChartPanel(chart);
// chartHolder.getViewport().setView(chartPanel);
setChartPanel(chartPanel);
JFreeChart baseChart = (JFreeChart) ((MultiplePiePlot) (chart.getPlot())).getPieChart();
PiePlot base = (PiePlot) (baseChart.getPlot());
base.setIgnoreZeroValues(true);
base.setLabelOutlinePaint(java.awt.Color.WHITE);
base.setLabelShadowPaint(java.awt.Color.WHITE);
base.setMaximumLabelWidth(
0.25); // allow bigger labels by a bit (this will make the chart smaller)
base.setInteriorGap(0.000); // allow stretch to compensate for the bigger label width
base.setLabelBackgroundPaint(java.awt.Color.WHITE);
base.setOutlinePaint(null);
base.setBackgroundPaint(null);
base.setShadowPaint(null);
base.setSimpleLabels(false); // I think they're false anyway
// change the look of the series title to be smaller
StandardChartTheme theme = new StandardChartTheme("Hi");
TextTitle title = new TextTitle("Whatever", theme.getLargeFont());
title.setPaint(theme.getAxisLabelPaint());
title.setPosition(RectangleEdge.BOTTOM);
baseChart.setTitle(title);
// this must come last because the chart must exist for us to set its dataset
setSeriesDataset(dataset);
}
protected JFreeChart createPieChart() throws JRException {
JFreeChart jfreeChart = super.createPieChart();
PiePlot piePlot = (PiePlot) jfreeChart.getPlot();
if (piePlot.getLabelGenerator() != null) {
piePlot.setLabelBackgroundPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot.setLabelShadowPaint(ChartThemesConstants.TRANSPARENT_PAINT);
piePlot.setLabelOutlinePaint(ChartThemesConstants.TRANSPARENT_PAINT);
}
piePlot.setShadowXOffset(0);
piePlot.setShadowYOffset(0);
PieDataset pieDataset = piePlot.getDataset();
if (pieDataset != null) {
for (int i = 0; i < pieDataset.getItemCount(); i++) {
piePlot.setSectionOutlinePaint(
pieDataset.getKey(i), ChartThemesConstants.TRANSPARENT_PAINT);
// makes pie colors darker
// piePlot.setSectionPaint(pieDataset.getKey(i), GRADIENT_PAINTS[i]);
}
}
piePlot.setCircular(true);
return jfreeChart;
}