/*
 * Copyright (c) 2008, 2013 Oracle and/or its affiliates.
 * All rights reserved. Use is subject to license terms.
 *
 * This file is available and licensed under the following license:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
 *  - Neither the name of Oracle Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


import java.util.Comparator;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
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.control.Button;
import javafx.scene.control.ButtonBuilder;
import javafx.scene.layout.VBoxBuilder;
import javafx.stage.Stage;


/**
 * A circular chart divided into segments. The value of each segment represents
 * a proportion of the total.
 *
 * @sampleName Pie Chart
 * @preview preview.png
 * @see javafx.scene.chart.PieChart
 * @see javafx.scene.chart.Chart
 * @playground chart.data
 */
public class PieChartApp extends Application {

    private PieChart chart;

    public Parent createContent() {
        ObservableList<Data> pieChartData = FXCollections
                .observableArrayList(
                    new PieChart.Data("Sun", 20),
                    new PieChart.Data("IBM", 12),
                    new PieChart.Data("HP", 25),
                    new PieChart.Data("Dell", 22),
                    new PieChart.Data("Apple", 30)
                );
        chart = new PieChart(pieChartData);
        chart.setClockwise(false);
        
        PieChartDataVisualizer pcdv = new PieChartDataVisualizer(chart);
        
        return VBoxBuilder.create()
                .children(chart, pcdv)
                .build();
    }
    
    @Override public void start(Stage primaryStage) throws Exception {
        primaryStage.setScene(new Scene(createContent()));
        primaryStage.show();
    }

    /**
     * Java main for when running without JavaFX launcher
     */
    public static void main(String[] args) {
        launch(args);
    }    
}