CODEWITHSUNDEEP
javajavafxjavafx-8
Amita Patil
Amita Patil

Reputation: 1370

How to detect whether the given point is in particular controls bound or not in JavaFX

I want to detect whether the given point is in my controls area/bound or not. example - Point(100, 100) I want to know whether it is on my button or not?

Upvotes: 1

Views: 1488

Answers (3)

Amita Patil
Amita Patil

Reputation: 1370

I solved it using getGraphics() function

`Node n = tabShapes.getGraphic();

System.out.println("x = "+pt.x +" y = "+pt.y);

Point2D p = new Point2D(pt.x, pt.y);

boolean f = n.contains(n.screenToLocal(p));`

Upvotes: 0

fabian
fabian

Reputation: 82461

Transform the point to the Node coordinate system and use Node.contains to check, if the point is actually inside the Node:

The following example checks every 500 ms, if the screen coordinates (100, 100) are in the Button's bounds

@Override
public void start(Stage primaryStage) {
    Button btn = new Button("Get (100, 100) in here");
    Point2D pt = new Point2D(100, 100);

    Timeline timeline = new Timeline(new KeyFrame(Duration.seconds(0.5), evt ->
            System.out.println(
                   btn.contains(btn.screenToLocal(pt))
            )
    ));
    timeline.setCycleCount(Animation.INDEFINITE);
    timeline.play();

    StackPane root = new StackPane();
    root.getChildren().add(btn);

    Scene scene = new Scene(root, 200, 50);

    primaryStage.setScene(scene);
    primaryStage.show();
}

Upvotes: 1

Dylan Wheeler
Dylan Wheeler

Reputation: 7074

You can create a java.awt.Rectangle variable marking the boundaries of your buttons and areas. Then use the method Rectangle#contains to test if the Point in question is within this area.

You may want to reference the Javadocs here: https://docs.oracle.com/javase/8/docs/api/java/awt/Rectangle.html

Upvotes: 0

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