Example usage for org.jfree.chart.renderer.category AreaRenderer setSeriesItemLabelsVisible

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.category AreaRenderer setSeriesItemLabelsVisible.

Prototype

public void setSeriesItemLabelsVisible(int series, boolean visible) 

Source Link

Document

Sets a flag that controls the visibility of the item labels for a series, and sends a RendererChangeEvent to all registered listeners.

Usage

From source file:ro.nextreports.engine.chart.JFreeChartExporter.java

private JFreeChart createAreaChart() throws QueryException {
    barDataset = new DefaultCategoryDataset();
    String chartTitle = replaceParameters(chart.getTitle().getTitle());
    chartTitle = StringUtil.getI18nString(chartTitle, I18nUtil.getLanguageByName(chart, language));
    Object[] charts = new Object[chart.getYColumns().size()];
    List<String> legends = chart.getYColumnsLegends();
    boolean hasLegend = false;
    for (int i = 0; i < charts.length; i++) {
        String legend = "";
        try {/*from ww w  .  j a  v  a 2  s  .  com*/
            legend = replaceParameters(legends.get(i));
            legend = StringUtil.getI18nString(legend, I18nUtil.getLanguageByName(chart, language));
        } catch (IndexOutOfBoundsException ex) {
            // no legend set
        }
        // Important : must have default different legends used in barDataset.addValue
        if ((legend == null) || "".equals(legend.trim())) {
            legend = DEFAULT_LEGEND_PREFIX + String.valueOf(i + 1);
        } else {
            hasLegend = true;
        }
        charts[i] = legend;
    }

    String xLegend = StringUtil.getI18nString(replaceParameters(chart.getXLegend().getTitle()),
            I18nUtil.getLanguageByName(chart, language));
    String yLegend = StringUtil.getI18nString(replaceParameters(chart.getYLegend().getTitle()),
            I18nUtil.getLanguageByName(chart, language));
    byte style = chart.getType().getStyle();
    JFreeChart jfreechart = ChartFactory.createAreaChart("Area Chart", // chart title
            xLegend, // x-axis Label
            yLegend, // y-axis Label
            barDataset, // data
            PlotOrientation.VERTICAL, // orientation
            true, // include legend
            true, // tooltips
            false // urls
    );

    // hide legend if necessary
    if (!hasLegend) {
        jfreechart.removeLegend();
    }

    // hide border
    jfreechart.setBorderVisible(false);

    // title
    setTitle(jfreechart);

    // chart colors & values shown on bars
    boolean showValues = (chart.getShowYValuesOnChart() == null) ? false : chart.getShowYValuesOnChart();
    CategoryPlot plot = (CategoryPlot) jfreechart.getPlot();
    plot.setForegroundAlpha(transparency);
    AreaRenderer renderer = (AreaRenderer) plot.getRenderer();
    DecimalFormat decimalformat;
    DecimalFormat percentageFormat;
    if (chart.getYTooltipPattern() == null) {
        decimalformat = new DecimalFormat("#");
        percentageFormat = new DecimalFormat("0.00%");
    } else {
        decimalformat = new DecimalFormat(chart.getYTooltipPattern());
        percentageFormat = decimalformat;
    }
    for (int i = 0; i < charts.length; i++) {
        renderer.setSeriesPaint(i, chart.getForegrounds().get(i));
        if (showValues) {
            renderer.setSeriesItemLabelsVisible(i, true);
            renderer.setSeriesItemLabelGenerator(i,
                    new StandardCategoryItemLabelGenerator("{2}", decimalformat, percentageFormat));
        }
    }

    if (showValues) {
        // increase a little bit the range axis to view all item label values over bars
        plot.getRangeAxis().setUpperMargin(0.2);
    }

    // grid axis visibility & colors 
    if ((chart.getXShowGrid() != null) && !chart.getXShowGrid()) {
        plot.setDomainGridlinesVisible(false);
    } else {
        if (chart.getXGridColor() != null) {
            plot.setDomainGridlinePaint(chart.getXGridColor());
        } else {
            plot.setDomainGridlinePaint(Color.BLACK);
        }
    }
    if ((chart.getYShowGrid() != null) && !chart.getYShowGrid()) {
        plot.setRangeGridlinesVisible(false);
    } else {
        if (chart.getYGridColor() != null) {
            plot.setRangeGridlinePaint(chart.getYGridColor());
        } else {
            plot.setRangeGridlinePaint(Color.BLACK);
        }
    }

    // chart background
    plot.setBackgroundPaint(chart.getBackground());

    // labels color
    plot.getDomainAxis().setTickLabelPaint(chart.getXColor());
    plot.getRangeAxis().setTickLabelPaint(chart.getYColor());

    // legend color
    plot.getDomainAxis().setLabelPaint(chart.getXLegend().getColor());
    plot.getRangeAxis().setLabelPaint(chart.getYLegend().getColor());

    // legend font
    plot.getDomainAxis().setLabelFont(chart.getXLegend().getFont());
    plot.getRangeAxis().setLabelFont(chart.getYLegend().getFont());

    // axis color
    plot.getDomainAxis().setAxisLinePaint(chart.getxAxisColor());
    plot.getRangeAxis().setAxisLinePaint(chart.getyAxisColor());

    // hide labels
    if ((chart.getXShowLabel() != null) && !chart.getXShowLabel()) {
        plot.getDomainAxis().setTickLabelsVisible(false);
        plot.getDomainAxis().setTickMarksVisible(false);
    }
    if ((chart.getYShowLabel() != null) && !chart.getYShowLabel()) {
        plot.getRangeAxis().setTickLabelsVisible(false);
        plot.getRangeAxis().setTickMarksVisible(false);
    }

    // label orientation
    CategoryAxis domainAxis = plot.getDomainAxis();
    if (chart.getXorientation() == Chart.VERTICAL) {
        domainAxis
                .setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 2));
    } else if (chart.getXorientation() == Chart.DIAGONAL) {
        domainAxis
                .setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 4));
    } else if (chart.getXorientation() == Chart.HALF_DIAGONAL) {
        domainAxis
                .setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 8));
    }

    // labels fonts
    plot.getDomainAxis().setTickLabelFont(chart.getXLabelFont());
    plot.getRangeAxis().setTickLabelFont(chart.getYLabelFont());

    createChart(plot.getRangeAxis(), charts);

    return jfreechart;
}

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