Example usage for javafx.scene.image ImageView preserveRatioProperty

Introduction

In this page you can find the example usage for javafx.scene.image ImageView preserveRatioProperty.

Prototype

public final BooleanProperty preserveRatioProperty() 

Source Link

Usage

From source file:Main.java

@Override
public void start(Stage stage) throws Exception {
    ImageView imageView = new ImageView();
    ScrollPane scrollPane = new ScrollPane();
    DoubleProperty zoomProperty = new SimpleDoubleProperty(200);

    zoomProperty.addListener(new InvalidationListener() {
        @Override//w w w .j  a  v  a  2s . c o m
        public void invalidated(Observable arg0) {
            imageView.setFitWidth(zoomProperty.get() * 2);
            imageView.setFitHeight(zoomProperty.get() * 3);
        }
    });
    scrollPane.addEventFilter(ScrollEvent.ANY, new EventHandler<ScrollEvent>() {
        @Override
        public void handle(ScrollEvent event) {
            if (event.getDeltaY() > 0) {
                zoomProperty.set(zoomProperty.get() * 1.2);
            } else if (event.getDeltaY() < 0) {
                zoomProperty.set(zoomProperty.get() / 1.1);
            }
        }
    });
    imageView.setImage(new Image("http://yourImageURL"));
    imageView.preserveRatioProperty().set(true);
    scrollPane.setContent(imageView);
    stage.setScene(new Scene(scrollPane, 400, 300));
    stage.show();
}

---