package demo;


import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class BugCanvasArc  extends Application {
    final double DEFAULT_ARC_X = 50;
    final double DEFAULT_ARC_Y = DEFAULT_ARC_X;
    final double DEFAULT_ARC_RADIUS_X = 25;
    final double DEFAULT_ARC_RADIUS_Y = DEFAULT_ARC_RADIUS_X;
    final double DEFAULT_ARC_START_ANGLE = 45;
    final double DEFAULT_ARC_LENGTH = 270;
     
    public static void main(String[] args) {
        launch(args);
    }
        Group root = new Group();

    private void init(Stage primaryStage) {
        primaryStage.setScene(new Scene(root,250,250));
    }

    @Override public void start(Stage primaryStage) throws Exception {
        init(primaryStage);
        primaryStage.show();
        root.getChildren().add(drawNode());
    }
    
    Pane borderPane;

    protected Pane baseFill(Pane pane) {
        pane.setPrefSize(180, 190);
        pane.setStyle("-fx-border-color: darkgray;");
        return pane;
    }

    public Node drawNode() {
        borderPane = baseFill(new VBox());

        final Canvas canvas = new Canvas(120, 120);
        GraphicsContext _gc = canvas.getGraphicsContext2D();

        _gc.arc(DEFAULT_ARC_X, DEFAULT_ARC_Y,
                DEFAULT_ARC_RADIUS_X, DEFAULT_ARC_RADIUS_X,
                DEFAULT_ARC_START_ANGLE, DEFAULT_ARC_LENGTH);
        borderPane.getChildren().addAll(canvas);
        _gc.stroke();

        return borderPane;
    }

}