Example usage for javafx.scene.control ScrollPane addEventFilter

Introduction

In this page you can find the example usage for javafx.scene.control ScrollPane addEventFilter.

Prototype

public final <T extends Event> void addEventFilter(final EventType<T> eventType,
        final EventHandler<? super T> eventFilter) 

Source Link

Document

Registers an event filter to this node.

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/*from w  w  w . j  ava2  s.com*/
        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();
}

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