Examples with DrilldownCallback com.vaadin.flow.component.charts.model.DrilldownCallback used on opensource projects

Example 1 with DrilldownCallback

use of com.vaadin.flow.component.charts.model.DrilldownCallback in project flow-components by vaadin.

the class ColumnWithLazyMultiLevelDrilldown method initDemo.

@Override
public void initDemo() {
    log = new Div();
    log.setId("log");
    Div layout = new Div();
    final Chart chart = new Chart(ChartType.COLUMN);
    chart.setId("chart");
    final Configuration conf = chart.getConfiguration();
    conf.setTitle("Global happiness index");
    conf.setSubTitle("Source: www.happyplanetindex.org");
    conf.getLegend().setEnabled(false);
    XAxis x = new XAxis();
    x.setType(AxisType.CATEGORY);
    conf.addxAxis(x);
    YAxis y = new YAxis();
    y.setTitle("Total");
    conf.addyAxis(y);
    PlotOptionsColumn column = new PlotOptionsColumn();
    column.setCursor(Cursor.POINTER);
    column.setDataLabels(new DataLabels(true));
    conf.setPlotOptions(column);
    DataSeries series = new DataSeries();
    series.setName("Regions");
    PlotOptionsColumn plotOptionsColumn = new PlotOptionsColumn();
    plotOptionsColumn.setColorByPoint(true);
    series.setPlotOptions(plotOptionsColumn);
    DataSeriesItem item = new DataSeriesItem("Latin America and Caribbean", 60);
    item.setId("Latin America and Caribbean");
    series.addItemWithDrilldown(item);
    item = new DataSeriesItem("Europe", 50);
    item.setId("Europe");
    series.addItemWithDrilldown(item);
    conf.addSeries(series);
    drillSeries = new HashMap<String, DataSeries>();
    DataSeries drill = new DataSeries("Latin America and Caribbean Countries");
    drill.setId("Latin America and Caribbean Countries");
    item = new DataSeriesItem("Costa Rica", 64);
    item.setId("Costa Rica");
    drill.addItemWithDrilldown(item);
    item = new DataSeriesItem("Colombia", 59.8);
    item.setId("Colombia");
    drill.addItemWithDrilldown(item);
    item = new DataSeriesItem("Belize", 59.3);
    item.setId("Belize");
    drill.addItemWithDrilldown(item);
    drillSeries.put("Latin America and Caribbean", drill);
    drill = new DataSeries("Europe");
    drill.setId("European Countries");
    item = new DataSeriesItem("Norway", 51.4);
    item.setId("Norway");
    drill.addItemWithDrilldown(item);
    item = new DataSeriesItem("Switzerland", 50.3);
    item.setId("Switzerland");
    drill.addItemWithDrilldown(item);
    item = new DataSeriesItem("Portugal", 38.7);
    item.setId("Portugal");
    drill.addItemWithDrilldown(item);
    drillSeries.put("Europe", drill);
    drill = new DataSeries("Details Costa Rica");
    drill.setId("Details Costa Rica");
    final String[] categories = new String[] { "Life Expectancy", "Well-being (0-10)", "Footprint (gha/capita)" };
    Number[] ys = new Number[] { 79.3, 7.3, 2.5 };
    drill.setData(categories, ys);
    drillSeries.put("Costa Rica", drill);
    drill = new DataSeries("Details Colombia");
    drill.setId("Details Colombia");
    ys = new Number[] { 73.7, 6.4, 1.8 };
    drill.setData(categories, ys);
    drillSeries.put("Colombia", drill);
    drill = new DataSeries("Details Belize");
    drill.setId("Details Belize");
    ys = new Number[] { 76.1, 6.5, 2.1 };
    drill.setData(categories, ys);
    drillSeries.put("Belize", drill);
    drill = new DataSeries("Details Norway");
    drill.setId("Details Norway");
    ys = new Number[] { 81.1, 7.6, 4.8 };
    drill.setData(categories, ys);
    drillSeries.put("Norway", drill);
    drill = new DataSeries("Details Switzerland");
    drill.setId("Details Switzerland");
    ys = new Number[] { 82.3, 7.5, 5.0 };
    drill.setData(categories, ys);
    drillSeries.put("Switzerland", drill);
    drill = new DataSeries("Details Portugal");
    drill.setId("Details Portugal");
    ys = new Number[] { 79.5, 4.9, 4.1 };
    drill.setData(categories, ys);
    drillSeries.put("Portugal", drill);
    chart.setDrilldownCallback((DrilldownCallback) event -> {
        log("DrilldownEvent: " + event.getItem().getId());
        return getPointDrilldown(event.getItem());
    });
    chart.addChartDrillupListener(event -> log("ChartDrillupEvent"));
    layout.add(chart, log);
    add(layout);
}