how to set spacing in gwt docklayout panel

in the old dockpanel, i can call the method setSpacing() to set the spacing between differe开发者_运维知识库nt child of the dockpanel, however the docklayoutpanel dont have htis method anymore, how can do set the spacing? Thanks

If you are using UiBinder - and I recommend that you do - you can use CSS to set margins and padding on the child widgets. You can also use someWidget.getElement().getStyle() to manipulate CSS.