GWT layout to fill the entire screen area?

I'm developing a GWT application. I would like to know which of the layout/panel would occupy the entire screen area. For example, it should automatically fit in the screen size no matter whatever pixel the screen size may be (1280X1024 or 1280X960 or whatever). The application should automatically fill the screen. Please let me know which of the layout/panel would support this? Please suggest a link for开发者_开发技巧 a tutorial/page that could well explain this.

Thanks in advance.

If you are using pure GWT, RootLayoutPanel is what you need.