AbstractGraphicsController.java 文件源码

@Override
public Coordinate getLocation(HumanInputEvent<?> event, RenderSpace renderSpace) {
    switch (renderSpace) {
        case WORLD:
            Coordinate screen = getLocation(event, RenderSpace.SCREEN);
            return mapWidget.getMapModel().getMapView().getWorldViewTransformer().viewToWorld(screen);
        case SCREEN:
        default:
            if (event instanceof MouseEvent<?>) {
                Element element = mapWidget.getDOM();
                double offsetX = ((MouseEvent<?>) event).getRelativeX(element);
                double offsetY = ((MouseEvent<?>) event).getRelativeY(element);
                return new Coordinate(offsetX, offsetY);
            } else if (event instanceof TouchEvent<?>) {
                Touch touch = ((TouchEvent<?>) event).getTouches().get(0);
                return new Coordinate(touch.getClientX(), touch.getClientY());
            }
            return new Coordinate(event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
    }
}