Example usage for org.jfree.chart.labels CategoryItemLabelGenerator CategoryItemLabelGenerator

Introduction

In this page you can find the example usage for org.jfree.chart.labels CategoryItemLabelGenerator CategoryItemLabelGenerator.

Prototype

CategoryItemLabelGenerator

Source Link

Usage

From source file:org.neo4j.bench.chart.JFreeBarChart.java

@Override
protected JFreeChart createChart(AbstractDataset dataset) {
    JFreeChart chart = ChartFactory.createBarChart("Performance chart", "Bench case", "Time(s)",
            (DefaultCategoryDataset) dataset, PlotOrientation.VERTICAL, true, true, false);

    rotateCategoryAxis(chart, Math.PI / 4.0);
    CategoryPlot plot = chart.getCategoryPlot();
    BarRenderer renderer = (BarRenderer) plot.getRenderer();
    renderer.setItemLabelGenerator(new CategoryItemLabelGenerator() {
        public String generateColumnLabel(CategoryDataset dataset, int column) {
            return "col" + column;
        }//from  w  w  w.  ja  v  a  2s  .  c  o m

        public String generateLabel(CategoryDataset dataset, int row, int column) {
            return "" + dataset.getValue(row, column).intValue();
        }

        public String generateRowLabel(CategoryDataset dataset, int row) {
            return "row" + row;
        }
    });
    renderer.setBaseItemLabelPaint(Color.black);
    renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.INSIDE12,
            TextAnchor.CENTER_RIGHT, TextAnchor.CENTER_RIGHT, -Math.PI / 2.0));
    renderer.setItemLabelsVisible(true);

    return chart;
}

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From source file:se.backede.jeconomix.forms.report.TransactionReport.java

public void addLineChart(Map<String, List<TransactionReportDto>> reports, Boolean average) {
    JFreeChart lineChart = ChartFactory.createLineChart("TOTAL", "MONTH", "Kr",
            ReportUtils.createDataset(reports, average), PlotOrientation.VERTICAL, true, true, true);

    ChartPanel chartPanel = new ChartPanel(lineChart);
    chartPanel.setPreferredSize(new java.awt.Dimension(lineChartPanel.getWidth(), lineChartPanel.getHeight()));

    CategoryAxis axis = lineChart.getCategoryPlot().getDomainAxis();
    CategoryItemRenderer renderer = lineChart.getCategoryPlot().getRenderer();

    ItemLabelPosition position = new ItemLabelPosition(ItemLabelAnchor.OUTSIDE1, TextAnchor.HALF_ASCENT_CENTER,
            TextAnchor.BOTTOM_CENTER, 0);
    renderer.setBasePositiveItemLabelPosition(position);

    renderer.setBaseItemLabelGenerator(new CategoryItemLabelGenerator() {

        @Override//from  w  ww .  j  ava 2  s. c o m
        public String generateLabel(CategoryDataset dataset, int series, int category) {
            if (average) {
                if (series == 0) {
                    Number value = dataset.getValue(series, category);
                    String result = value.toString(); // could apply formatting here
                    return result;
                }
            } else {
                Number value = dataset.getValue(series, category);
                String result = value.toString(); // could apply formatting here
                return result;
            }
            return null;
        }

        @Override
        public String generateRowLabel(CategoryDataset cd, int i) {
            return null;
        }

        @Override
        public String generateColumnLabel(CategoryDataset cd, int i) {
            return null;
        }
    });

    renderer.setBaseItemLabelsVisible(true);
    lineChartPanel.setLayout(new BorderLayout());
    lineChartPanel.add(chartPanel, BorderLayout.NORTH);
}

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