% mitreslides package for use with the slides class in LaTeX.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mitreslides}[2005/02/21]
%
% John D. Ramsdell
%
% Example file:
%
%	\documentclass[landscape]{slides}
%	\usepackage{mitreslides}
%       \renewcommand{\footercomment}{A Title}
%	\begin{document}
%	...
%	\end{document}
%
% Defines environments: titleslide, mitreslide, and mitreoverlay
%
% The "slide" pagestyle is also defined.  It prints the slide
% number, and the MITRE logo in the lower right corner.
%
% titleslide example:
%
%	\begin{titleslide}{A Briefing\\of Major Importance}
%	R. J. Drofnats
%
%	30 Feb 93
%	\end{titleslide}
%
%		The first argument is optional and is passed to
%               the slide environment and is used for color slides.
%		The second argument is the briefing title.
%
% mitreslide example:
%
%	\begin{mitreslide}{A Slide\\Title}
%	...slide contents...
%	\end{mitreslide}
%
%		The first argument is optional and is passed to
%               the slide environment and is used for color slides.
%               The second argument is the slide title.
%
% Set the footer comment with footercomment.
% The options are, date, nopagenumbers, and marks.
%
% Initial code
\RequirePackage{ifthen}
\newboolean{date}                           % Show current date
\newboolean{nopagenums}                     % Omit page numbers
\newboolean{marks}                          % Show top marks
% Declaration of options
\DeclareOption{date}{\setboolean{date}{true}}
\DeclareOption{nopagenums}{\setboolean{nopagenums}{true}}
\DeclareOption{marks}{\setboolean{marks}{true}}
%
\ProcessOptions
\RequirePackage{graphicx}
% ----------- main code ----------------
% Footer comment is empty by default.
\newcommand{\footercomment}{}

\ifthenelse{\boolean{date}}{%
\newcommand{\show@date}{\the\year{/}\the\month{/}\the\day}%
}{%
\newcommand{\show@date}{}%
}

\ifthenelse{\boolean{nopagenums}}{%
\newcommand{\show@slidenum}{\phantom{\theslide}}%
}{%
\newcommand{\show@slidenum}{\theslide}%
}

\ifthenelse{\boolean{marks}}{%
\newcommand{\show@mark}{+}%
}{%
\newcommand{\show@mark}{\phantom{+}}%
}
%
%        slide page style -- MITRE logo goes flush right
\def\ps@slide{%
\def\@oddfoot{{\tiny\show@slidenum\qquad\show@date\quad\footercomment}%
\hfil\includegraphics{mitrelogo-0.mps}}
\def\@oddhead{\show@mark\hfil\show@mark}
\def\@evenfoot{\@oddfoot}
\def\@evenhead{\@oddhead}}
%
%	\begin{mitreslide}[COLORS]{TITLE} ... \end{mitreslide}
\newenvironment{mitreslide}[2][]%  Built on the slide environment.
{\begin{slide}{#1}{\noindent\raggedright\Large#2\par}}%
{\vfill\end{slide}}
%
%	\begin{titleslide}[COLORS]{TITLE} ... \end{titleslide}
\newenvironment{titleslide}[2][]%
{\begin{slide}{#1}\begin{center}{{\Large#2\par}}}%
{\end{center}\end{slide}}