Example usage for org.jfree.chart.plot MultiplePiePlot setNoDataMessage

Introduction

In this page you can find the example usage for org.jfree.chart.plot MultiplePiePlot setNoDataMessage.

Prototype

public void setNoDataMessage(String message) 

Source Link

Document

Sets the message that is displayed when the dataset is empty or null, and sends a PlotChangeEvent to all registered listeners.

Usage

From source file:com.itemanalysis.jmetrik.graph.piechart.PieChartPanel.java

public void setGraph() {
    if (hasGroupVariable) {
        DefaultCategoryDataset piedat = new DefaultCategoryDataset();
        chart = ChartFactory.createMultiplePieChart(chartTitle, piedat, TableOrder.BY_ROW, showLegend, true,
                false);//from   w w w.  j  ava 2 s. co  m

        if (chartSubtitle != null && !"".equals(chartSubtitle)) {
            TextTitle subtitle1 = new TextTitle(chartSubtitle);
            chart.addSubtitle(subtitle1);
        }

        MultiplePiePlot plot = (MultiplePiePlot) chart.getPlot();
        JFreeChart subchart = plot.getPieChart();
        PiePlot p = (PiePlot) subchart.getPlot();
        p.setBackgroundPaint(Color.WHITE);
        p.setLabelGenerator(new StandardPieSectionLabelGenerator("{0} ({2})"));
        if (explode)
            p.setExplodePercent(explodeValue, explodePercent);

        ChartPanel panel = new ChartPanel(chart);
        panel.setPreferredSize(new Dimension(width, height));

        chart.setPadding(new RectangleInsets(20.0, 5.0, 20.0, 5.0));
        this.add(panel);
    } else {
        DefaultPieDataset piedat = new DefaultPieDataset();
        if (command.getSelectOneOption("view").isValueSelected("3D")) {
            chart = ChartFactory.createPieChart3D(chartTitle, piedat, showLegend, true, false);

            PiePlot3D plot = (PiePlot3D) chart.getPlot();
            plot.setStartAngle(290);
            plot.setDirection(Rotation.CLOCKWISE);
            plot.setForegroundAlpha(0.5f);
            plot.setNoDataMessage("No data to display");
            if (explode)
                plot.setExplodePercent(explodeValue, explodePercent);

        } else {
            chart = ChartFactory.createPieChart(command.getFreeOption("title").getString(), piedat, showLegend,
                    true, false);
        }

        if (chartSubtitle != null && !"".equals(chartSubtitle)) {
            TextTitle subtitle = new TextTitle(chartSubtitle);
            chart.addSubtitle(subtitle);
        }

        PiePlot plot = (PiePlot) chart.getPlot();
        plot.setLabelGap(0.02);
        plot.setLabelGenerator(new StandardPieSectionLabelGenerator("{0} ({2})"));
        plot.setBackgroundPaint(Color.WHITE);
        if (explode)
            plot.setExplodePercent(explodeValue, explodePercent);

        ChartPanel panel = new ChartPanel(chart);
        panel.getPopupMenu().addSeparator();
        this.addJpgMenuItem(this, panel.getPopupMenu());
        panel.setPreferredSize(new Dimension(width, height));

        chart.setPadding(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
        this.setBackground(Color.WHITE);
        this.add(panel);
    }

}

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