Example usage for javafx.scene.control TreeView scrollTo

Introduction

In this page you can find the example usage for javafx.scene.control TreeView scrollTo.

Prototype

public void scrollTo(int index) 

Source Link

Document

Scrolls the TreeView such that the item in the given index is visible to the end user.

Usage

From source file:acmi.l2.clientmod.xdat.Controller.java

private MenuItem createAddMenu(String name, TreeView<Object> elements, TreeItem<Object> selected) {
    ListHolder listHolder = (ListHolder) selected.getValue();

    MenuItem add = new MenuItem(name);
    add.setOnAction(event -> {//from  ww  w .  ja  v  a 2s. c  o  m
        Stream<ClassHolder> st = SubclassManager.getInstance().getClassWithAllSubclasses(listHolder.type)
                .stream().map(ClassHolder::new);
        List<ClassHolder> list = st.collect(Collectors.toList());

        Optional<ClassHolder> choice;

        if (list.size() == 1) {
            choice = Optional.of(list.get(0));
        } else {
            ChoiceDialog<ClassHolder> cd = new ChoiceDialog<>(list.get(0), list);
            cd.setTitle("Select class");
            cd.setHeaderText(null);
            choice = cd.showAndWait();
        }
        choice.ifPresent(toCreate -> {
            try {
                IOEntity obj = toCreate.clazz.newInstance();

                listHolder.list.add(obj);
                TreeItem<Object> treeItem = createTreeItem(obj);
                selected.getChildren().add(treeItem);
                elements.getSelectionModel().select(treeItem);
                elements.scrollTo(elements.getSelectionModel().getSelectedIndex());

                editor.getHistory().valueCreated(treeItemToScriptString(selected), toCreate.clazz);
            } catch (ReflectiveOperationException e) {
                log.log(Level.WARNING, String.format("Couldn't instantiate %s", toCreate.clazz.getName()), e);
                Dialogs.show(Alert.AlertType.ERROR, "ReflectiveOperationException", null,
                        "Couldn't instantiate " + toCreate.clazz);
            }
        });
    });

    return add;
}

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