How to change formatting of \part in a .cls file?

Question

I'm using an external .cls file, which is based on the report.cls template. I need to change the formatting of the top-level parts (i.e. \part objects) in the table of contents, and on the \part pages. In particular,

• On the table of contents, I need the \part entries to be centered, all-caps, no page number, and start with the word "PART" e.g. "PART I: FOO," "PART II: BAR"
• On the \part pages within the document, I need to turn off page numbering in the footer.

Currently, in the .cls file, the \tableofcontents command is:

\renewcommand{\tableofcontents}{%
    \if@twocolumn
      \@restonecoltrue\onecolumn
    \else
      \@restonecolfalse
    \fi
    \normalsize
    \chapter*{\contentsname
        \@mkboth{%
           \MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
    {\hfill \textbf{Page}\par}%
    {\hyphenpenalty=\umthesis@listhyphenpenalty\@starttoc{toc}}%
    \if@restonecol\twocolumn\fi
    }

As for \part formatting, I don't see any commands in the .cls file for it.

I think these are straightforward changes for you TeX experts out there, but as a noob with a deadline, I'm not making much headway. Any help appreciated!

Answer 1

If the class doesn't define \part and the command is usable, then there is somewhere near the beginning of the class file the command \LoadClass and, from what you're reporting, the base class should be report.

So the definition to modify can be found in report.cls; the following should do what you're looking for:

\makeatletter
\def\@part[#1]#2{%
  \ifnum \c@secnumdepth >-2\relax
    \refstepcounter{part}%
    \addcontentsline{toc}{part}{%
      \MakeUppercase{Part \thepart: #1}}%
  \else
    \addcontentsline{toc}{part}{\MakeUppercase{#1}}%
  \fi
  \markboth{}{}%
  {\centering
   \interlinepenalty \@M
   \normalfont
   \ifnum \c@secnumdepth >-2\relax
     \huge\bfseries \partname\nobreakspace\thepart
     \par
     \vskip 20\p@
   \fi
   \Huge \bfseries #2\par}%
  \@endpart}
\def\@endpart{%
   \thispagestyle{empty}%
   \vfil\newpage
   \if@twoside
     \if@openright
       \null
       \thispagestyle{empty}%
       \newpage
     \fi
   \fi
   \if@tempswa
     \twocolumn
   \fi}
\makeatother