/*
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 * and open the template in the editor.
 */
package myjavafxapplication;

import java.util.ArrayList;
import java.util.List;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 *
 * @author yann
 */
public class MyJavaFXApplication extends Application {

    private static int NB_COL = 30;
    private static int NB_LINE = 10000;

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Application.launch(MyJavaFXApplication.class, args);
    }

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Hello World");
        Group root = new Group();
        Scene scene = new Scene(root, 1200, 550, Color.LIGHTGREEN);
        Button btn = new Button();
        btn.setLayoutX(100);
        btn.setLayoutY(80);
        btn.setText("Hello World");
        btn.setOnAction(new EventHandler<ActionEvent>() {

            public void handle(ActionEvent event) {
                System.out.println("Hello World");
            }
        });

        TableView tableView = new TableView();
        tableView.setItems(getData());
        tableView.getColumns().addAll(getColumns());
        tableView.setLayoutX(30);
        tableView.setLayoutY(150);
        tableView.setPrefSize(1100, 300);
        tableView.setColumnControlEnabled(true);


        root.getChildren().add(btn);
        root.getChildren().add(tableView);
        primaryStage.setScene(scene);
        primaryStage.setVisible(true);
    }

    public ObservableList getData() {
        final ObservableList data = FXCollections.observableArrayList(getLines());
        return data;
    }

    public List<List<Double>> getLines() {
        List<List<Double>> data = new ArrayList<List<Double>>();
        for (int i = 0; i < NB_LINE; i++) {
            List<Double> line = new ArrayList<Double>();
            for (int j = 0; j <= NB_COL; j++) {
                if(j == 0) line.add((double)i);
                else line.add(Math.random() * 1000);
            }
            data.add(line);
        }
        return data;
    }


    public List<TableColumn> getColumns() {
        List<TableColumn> cols = new ArrayList<TableColumn>();
        for (int i = 0; i <= NB_COL; i++) {
            TableColumn col = new TableColumn();
            col.setText("Col" + i);
            final int coli = i;
            col.setDataRetriever(new Callback<TableColumn.CellDataFeatures<Double>, Double>() {

                @Override
                public Double call(TableColumn.CellDataFeatures p) {
                    return ((List<Double>) p.getValue()).get(coli);
                }
            });
            
            cols.add(col);
        }
        return cols;
    }

}