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package javafxapplication1;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.ToggleButton;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeView;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

/**
 *
 * @author Dmitry Zinkevich
 */
public class JavaFXApplication1 extends Application {

    @Override
    public void start(Stage primaryStage) {

        TreeView treeView = new TreeView();
        treeView.setRoot(new TreeItem("ROOT"));

        for (int i = 0; i < 10; i++) {
            treeView.getRoot().getChildren().add(i, new TreeItem("item - " + i));
        }

        ToggleButton btnValue = new ToggleButton("false");
        btnValue.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent t) {
                if (((ToggleButton) t.getSource()).isSelected()) {
                    ((ToggleButton) t.getSource()).setText("true");
                } else {
                    ((ToggleButton) t.getSource()).setText("false");
                }
            }
        });

        treeView.getRoot().expandedProperty().bind(btnValue.selectedProperty());

        HBox root = new HBox();
        root.getChildren().addAll(btnValue, treeView);

        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * The main() method is ignored in correctly deployed JavaFX application.
     * main() serves only as fallback in case the application can not be
     * launched through deployment artifacts, e.g., in IDEs with limited FX
     * support. NetBeans ignores main().
     *
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }
}