layout();
layout(false);
public void setContent(Control content) {	checkWidget();	if (content != null && content.getParent() != this) {		SWT.error(SWT.ERROR_INVALID_ARGUMENT);	}	if (this.content != null && !this.content.isDisposed()) {		this.content.setBounds(OFFSCREEN, OFFSCREEN, 0, 0);	}	this.content = content;	layout();}