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/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates.
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*
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*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
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* the documentation and/or other materials provided with the distribution.
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package ensemble.samples.charts.pie.drilldown;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.chart.PieChart;
import javafx.scene.chart.PieChart.Data;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
/**
* A pie chart that provides the ability to drill down through data. Selecting a
* segment in the initial pie chart causes the pie chart to display detailed data
* for the selected segment.
*
* @sampleName Drilldown Pie Chart
* @preview preview.png
* @see javafx.event.EventHandler
* @see javafx.scene.chart.PieChart
* @see javafx.scene.input.MouseEvent
*/
public class DrilldownPieChartApp extends Application {
PieChart.Data A, B, C, D;
private ObservableList data;
public Parent createContent() {
data = FXCollections.observableArrayList(
A = new PieChart.Data("A", 20),
B = new PieChart.Data("B", 30),
C = new PieChart.Data("C", 10),
D = new PieChart.Data("D", 40)
);
PieChart pie = new PieChart(data);
pie.getStylesheets().add(DrilldownPieChartApp.class
.getResource("DrilldownChart.css").toExternalForm());
setDrilldownData(pie, A, "a");
setDrilldownData(pie, B, "b");
setDrilldownData(pie, C, "c");
setDrilldownData(pie, D, "d");
return pie;
}
private void setDrilldownData(final PieChart pie, PieChart.Data data, final String labelPrefix) {
data.getNode().setOnMouseClicked((MouseEvent t) -> {
pie.setData(FXCollections.observableArrayList(
new PieChart.Data(labelPrefix + "-1", 7),
new PieChart.Data(labelPrefix + "-2", 2),
new PieChart.Data(labelPrefix + "-3", 5),
new PieChart.Data(labelPrefix + "-4", 3),
new PieChart.Data(labelPrefix + "-5", 2)));
});
}
@Override public void start(Stage primaryStage) throws Exception {
primaryStage.setScene(new Scene(createContent()));
primaryStage.show();
}
/**
* Java main for when running without JavaFX launcher
* @param args command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
