Furtunately I got an answer at stackoverflow: http://stackoverflow.com/questions/12588759/captionpanel-captionlayoutpanel
Only "problem" is, that I have to set the childs height manually to 98% (normally it's not necessary for Layout Panels) to fit in the caption panel. I can live with this "problem" and maybe it's useful for somebody in the future. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/bqmoVt02VcYJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.