JavaFX HBox hide item

Question

How can i hide an item in HBox, and made space used by this item available to other items.

TitledPane legendPane = new TitledPane(\"Legend\", _legend);
legen         


        

Answer 1

You can temporarily remove it from the scene:

legendPane.visibleProperty().addListener(new ChangeListener() {
    @Override
    public void changed(ObservableValue observable, Boolean oldValue, Boolean newValue) {
        if (newValue) {
            hbox.getChildren().add(legendPane);
        } else {
            hbox.getChildren().remove(legendPane);
        }
    }
});

Or manipulate its size:

legendPane.visibleProperty().addListener(new ChangeListener() {
    @Override
    public void changed(ObservableValue observable, Boolean oldValue, Boolean newValue) {
        if (newValue) {
            legendPane.setMaxSize(Double.MAX_VALUE, Double.MAX_VALUE);
            legendPane.setPrefSize(prefWidth, prefHeight);
        } else {
            legendPane.setMaxSize(0, 0);
            legendPane.setMinSize(0, 0);

        }
    }
});