src/main/java/org/efaps/ui/wicket/components/tree/StructurBrowserTreeTable.java
@Override
    public Component newNodeComponent(final String _wicketId,
                                      final IModel<UIStructurBrowser> _model)
    {
        return new Node<UIStructurBrowser>(_wicketId, this, _model)
        {

            private static final long serialVersionUID = 1L;

            @Override
            protected Component createContent(final String _wicketId,
                                              final IModel<UIStructurBrowser> _model)
            {
                return newContentComponent(_wicketId, _model);
            }

            @Override
            protected MarkupContainer createJunctionComponent(final String _id)
            {
                final UIStructurBrowser strucBrws = (UIStructurBrowser) getDefaultModelObject();
                final MarkupContainer ret;
                if (strucBrws.hasChildren() && strucBrws.isForceExpanded()) {
                    ret = new WebMarkupContainer(_id);

                } else {
                    ret = super.createJunctionComponent(_id);
                }

                if (strucBrws.getLevel() > 0) {
                    ret.add(AttributeModifier.append("style", "margin-left:" + 15 * (strucBrws.getLevel() - 1) + "px"));
                }
                return ret;
            }
        };
    }
@Override
    public Component newNodeComponent(final String _wicketId,
                                      final IModel<UIStructurBrowser> _model)
    {
        return new Node<UIStructurBrowser>(_wicketId, this, _model)
        {

            private static final long serialVersionUID = 1L;

            @Override
            protected Component createContent(final String _wicketId,
                                              final IModel<UIStructurBrowser> _model)
            {
                return newContentComponent(_wicketId, _model);
            }

            @Override
            protected MarkupContainer createJunctionComponent(final String _id)
            {
                final UIStructurBrowser strucBrws = (UIStructurBrowser) getDefaultModelObject();
                final MarkupContainer ret;
                if (strucBrws.hasChildren() && strucBrws.isForceExpanded()) {
                    ret = new WebMarkupContainer(_id);

                } else {
                    ret = super.createJunctionComponent(_id);
                }

                if (strucBrws.getLevel() > 0) {
                    ret.add(AttributeModifier.append("style", "margin-left:" + 15 * (strucBrws.getLevel() - 1) + "px"));
                }
                return ret;
            }
        };
    }
Create a new component for a node.

@param _wicketId  the component id
@param _model     the model containing the node
@return created component