returns the viewer , null if not available . concode_field_sep IDocument fDocument concode_elem_sep ITextViewer fViewer concode_elem_sep CharSequence fPrefix concode_elem_sep int fOffset concode_field_sep IDocument getDocument concode_elem_sep int hashCode concode_elem_sep int getInvocationOffset concode_elem_sep boolean equals concode_elem_sep CharSequence computeIdentifierPrefix
ITextViewer function ( ) { return fViewer ; }