Method intersects

src/main/java/fieldbox/boxes/Drawing.java:114–132

(Window.Event<?> event, Box box)

	}

	static public boolean intersects(Window.Event<?> event, Box box) {
		Rect frame = box.properties.get(Box.frame);
		if (frame == null) return false;

		Optional<Drawing> drawing = box.find(Drawing.drawing, box.both())
			.findFirst();
		if (!drawing.isPresent()) return false;

		Object o = event.after;
		if (o instanceof Window.HasPosition) {
			Optional<Vec2> o2 = ((Window.HasPosition) o).position();
			if (!o2.isPresent()) return false;

			return frame.intersects(drawing.get()
				.windowSystemToDrawingSystem(o2.get()));
		}

		return false;
	}

	/**
	 * call this to request a redraw at the next available animation cycle