Example usage for javafx.scene.control TreeView getRoot

Introduction

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

Prototype

public final TreeItem<T> getRoot() 

Source Link

Document

Returns the current root node of this TreeView, or null if no root node is specified.

Usage

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

private void updateContextMenu(ContextMenu contextMenu, TreeView<Object> elements) {
    contextMenu.getItems().clear();//from  w w w .  jav  a  2s.c  om

    TreeItem<Object> root = elements.getRoot();
    TreeItem<Object> selected = elements.getSelectionModel().getSelectedItem();

    if (selected == null) {
        if (root != null)
            contextMenu.getItems().add(createAddMenu("Add ..", elements, root));
    } else {
        Object value = selected.getValue();
        if (value instanceof ListHolder) {
            contextMenu.getItems().add(createAddMenu("Add ..", elements, selected));
        } else if (selected.getParent() != null && selected.getParent().getValue() instanceof ListHolder) {
            MenuItem add = createAddMenu("Add to parent ..", elements, selected.getParent());

            MenuItem delete = new MenuItem("Delete");
            delete.setOnAction(event -> {
                ListHolder parent = (ListHolder) selected.getParent().getValue();

                int index = parent.list.indexOf(value);
                editor.getHistory().valueRemoved(treeItemToScriptString(selected.getParent()), index);

                parent.list.remove(index);
                selected.getParent().getChildren().remove(selected);

                elements.getSelectionModel().selectPrevious();
                elements.getSelectionModel().selectNext();
            });
            contextMenu.getItems().addAll(add, delete);
        }
        if (value instanceof ComponentFactory) {
            MenuItem view = new MenuItem("View");
            view.setOnAction(event -> {
                if (value instanceof L2Context)
                    ((L2Context) value).setResources(l2resources.getValue());
                Stage stage = new Stage();
                stage.setTitle(value.toString());
                Scene scene = new Scene(((ComponentFactory) value).getComponent());
                scene.getStylesheets().add(getClass().getResource("l2.css").toExternalForm());
                stage.setScene(scene);
                stage.show();
            });
            contextMenu.getItems().add(view);
        }
    }
}

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From source file:org.eclipse.jubula.rc.javafx.tester.adapter.TreeOperationContext.java

/**
 * Creates a new instance. The JTree must have a tree model.
 *
 * @param queuer//  www.  jav  a 2  s.  c  o  m
 *            The queuer
 * @param robot
 *            The Robot
 * @param tree
 *            The tree
 */
public TreeOperationContext(IEventThreadQueuer queuer, IRobot robot, TreeView<?> tree) {
    super(queuer, robot, tree);
    Validate.notNull(tree.getRoot());
}

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From source file:org.eclipse.jubula.rc.javafx.tester.adapter.TreeOperationContext.java

@Override
public Object[] getRootNodes() {
    Object[] result = EventThreadQueuerJavaFXImpl.invokeAndWait("getRootNodes", new Callable<Object[]>() { //$NON-NLS-1$

        @Override/*from   ww  w .  ja v  a 2s  .c o m*/
        public Object[] call() throws Exception {
            TreeView<?> tree = (TreeView<?>) getTree();

            // If the root is visible, just return that.
            if (tree.showRootProperty().getValue()) {
                return new Object[] { tree.getRoot() };
            }

            // If the root is not visible, return all direct
            // children of the
            // non-visible root.
            return getChildren(tree.getRoot());
        }
    });
    return result;
}

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