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; }