beamerthemeMcMasterU.sty

%============================================================================================%
%		UNOFFICIAL MCMASTER UNIVERSITY BEAMER THEME
%============================================================================================%
%
%   Created by: Ricardo Barros Lourenco (barroslr@mcmaster.ca)
%
%   Based on the BEAMER template; 
%   and modifications by: Michael Kirker (https://github.com/michaelkirker/Unofficial-UChicago-Beamer-Theme).
%
%============================================================================================%



%============================================================================================%
% 		Packages that will be used
%============================================================================================%
\usepackage{xcolor}				        % Create custom colours
\usepackage[overlay]{textpos} 			% Position logo in each slide header
\usepackage{tikz}
\usepackage[export]{adjustbox}
\usepackage{lmodern}
\usepackage{hyperref}
\usepackage{graphicx}
\usetikzlibrary{shadings}
%\usepackage{transparent}




	

%============================================================================================%
% 		Change some global settings
%============================================================================================%

% Make hidden upcoming elements in a slide semi-transparent rather than completely invisible

\mode<presentation>{
		\setbeamercovered{transparent}
		}


% Specify baseline theme from which we will build off

\usetheme{Madrid}


% Remove the navigation symbols from the lower right corner of each slide
	
\beamertemplatenavigationsymbolsempty
	


%============================================================================================%
%		Define colors
%============================================================================================%
% Original colors taken from http://communications.uchicago.edu/identity/color-palette

% Signature Color Palette
	\definecolor{ChicagoMaroon}{RGB}{128,0,0}
	\definecolor{ChicagoDarkGray}{RGB}{118,118,118}
	\definecolor{ChicagoLightGray}{RGB}{214,214,206}

% Secondary Color Palette
	\definecolor{ChicagoRed}{RGB}{143,57,49}
	\definecolor{ChicagoOrange}{RGB}{193,102,34}
	\definecolor{ChicagoLightGreen}{RGB}{138,157,69}
	\definecolor{ChicagoDarkGreen}{RGB}{101,109,51}	
	\definecolor{ChicagoBlue}{RGB}{21,95,131}
	\definecolor{ChicagoBlueLight}{RGB}{91,150,173}
	\definecolor{ChicagoBlueDark}{RGB}{21,67,95}
	\definecolor{ChicagoViolet}{RGB}{53,14,32}
		
% Colors for the Shading
	\definecolor{RedShade1}{RGB}{138,0,0} % Colors taken from UChicago Powerpoint slides
	\definecolor{RedShade2}{RGB}{68,0,0}
		

% For the McMaster version, we use the guidelines : https://web.archive.org/web/20201027203234/https://brand.mcmaster.ca/app/uploads/2019/04/brand-guidelines.pdf

\setbeamercolor*{frametitle}{fg=white}

\setbeamercolor*{title}{use=structure,fg=white,bg=ChicagoMaroon}


%============================================================================================%
%		Assign colors
%============================================================================================%

% Specify base color of the presentation
	\usecolortheme[named=ChicagoDarkGray]{structure}

% Specify other specific colors
	\setbeamercolor{block title alerted}{fg=white,bg=ChicagoBlue}
	\setbeamercolor{block body alerted}{bg=ChicagoBlueLight!50!white}
	
	\setbeamercolor{block title}{bg=ChicagoMaroon,fg=white}
	\setbeamercolor{block body}{bg=ChicagoLightGray}
	
	\setbeamercolor{block title example}{bg=ChicagoDarkGreen,fg=white}
	\setbeamercolor{block body example}{bg=ChicagoLightGreen,fg=white}

	\setbeamercolor{author in head/foot}{bg=ChicagoMaroon,fg=white}
 	\setbeamercolor{title in head/foot}{bg=ChicagoDarkGray,fg=white}
 	\setbeamercolor{date in head/foot}{bg=ChicagoMaroon,fg=white}
 	\setbeamercolor{date in head/foot}{bg=ChicagoLightGray,fg=ChicagoMaroon}
 		
 \setbeamertemplate{headline}{
 \begin{beamercolorbox}{section in head/foot} \vskip2pt\insertnavigation{\paperwidth}\vskip2pt
 \end{beamercolorbox}}
 		
 		

%============================================================================================%
%		Theme the blocks
%============================================================================================%

% Use sharp right angle corners rather than the rounded corners
\setbeamertemplate{blocks}[default]


		
%============================================================================================%
%		Adjust fonts
%============================================================================================%		

% Arial is a proprietary font, therefore shifting to TeX Gyre Heros (https://tug.org/FontCatalogue/texgyreheros/) - Following Mac Guideline book too
\usepackage{tgheros}
\renewcommand{\familydefault}{\sfdefault}

% Font for the presentation title
\setbeamerfont{title}{size = \huge}

% Font of the frame titles
\setbeamerfont{frametitle}{size = \Large}



%============================================================================================%
%		Inner theme
%============================================================================================%	
%%%%%%
% Here we am using the rounded theme for the overall "feel" of the presentation. You can change the specific details by editing that particular option as we have done below.
\useinnertheme{rounded}


\setbeamercolor{button}{bg=ChicagoLightGray,fg=white}


%============================================================================================%
%		Create slide title bar
%============================================================================================%
% Slide title bar features a blend of reds and a watermark of the shield logo on the right hand side

% Create Shading:

\colorlet{titleleft}{RedShade1}
\colorlet{titleright}{RedShade2}

\makeatletter
\pgfdeclarehorizontalshading[titleleft,titleright]{beamer@frametitleshade}{\paperheight}{%
  color(0pt)=(titleleft);
  %color(0.5\paperwidth)=(titleleft);
  color(\paperwidth)=(titleright)}

\defbeamertemplate*{frametitle}{horizontal shading}
{%
  \nointerlineskip%
  %\vskip-2pt%
  \hbox{\leavevmode
    \advance\beamer@leftmargin by -12bp%
    \advance\beamer@rightmargin by -12bp%
    \beamer@tempdim=\textwidth%
    \advance\beamer@tempdim by \beamer@leftmargin%
    \advance\beamer@tempdim by \beamer@rightmargin%
    \hskip-\Gm@lmargin\hbox{%
      \setbox\beamer@tempbox=\hbox{\begin{minipage}[b]{\paperwidth}%
          \vbox{}\vskip-.75ex%
          \leftskip0.3cm%
          \rightskip0.3cm plus1fil\leavevmode
          \insertframetitle%
          \ifx\insertframesubtitle\@empty%
            \strut\par%
          \else
            \par{\usebeamerfont*{framesubtitle}{\usebeamercolor[fg]{framesubtitle}\insertframesubtitle}\strut\par}%
          \fi%
          \nointerlineskip
          \vbox{}%
          \end{minipage}}%
      \beamer@tempdim=\ht\beamer@tempbox%
      \advance\beamer@tempdim by 2pt%
      \begin{pgfpicture}{0pt}{0pt}{\paperwidth}{\beamer@tempdim}
        \usebeamercolor{frametitle right}
        \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{\paperwidth}{\beamer@tempdim}}
        \pgfusepath{clip}
        \pgftext[left,base]{\pgfuseshading{beamer@frametitleshade}}
      \end{pgfpicture}
      \hskip-\paperwidth%
      \box\beamer@tempbox%
    }%
    \hskip-\Gm@rmargin%
  }%
    \vskip-2pt
}
\makeatother


% Add shield logo


\addtobeamertemplate{frametitle}{}{%
	\begin{textblock*}{1.2em}[1,1](0.97\paperwidth,0mm)
	\includegraphics[height=1.1em,width=1.1em,keepaspectratio]{graphics/mcmaster-shield-only-title.png}
	\end{textblock*}
}



%============================================================================================%
% 		Customise enumerates and itemized lists
%============================================================================================%

% Enumerated lists:
%---------------------

\setbeamertemplate{enumerate items}[default] 	% Use numbers (e.g. "1.")

\setbeamercolor*{enumerate item}{fg=ChicagoMaroon}
\setbeamercolor*{enumerate subitem}{fg=ChicagoMaroon}
\setbeamercolor*{enumerate subsubitem}{fg=ChicagoMaroon}



% Itemized lists:
%---------------------

% Create "shield" shape (Cant remember where I found this code)

\newcommand\shield{ \tikz [baseline] \path [fill=ChicagoMaroon] (0,1.3ex) -- (0,0.56ex) arc [radius=0.5ex, start angle=-180, end angle=0] -- (1ex,1.3ex) -- cycle ;  }

\defbeamertemplate{itemize item}{image}{\shield}
\defbeamertemplate{itemize subitem}{image}{\shield}
\defbeamertemplate{itemize subsubitem}{image}{\shield}

\setbeamertemplate{itemize item}[image]
\setbeamertemplate{itemize subitem}[image]
\setbeamertemplate{itemize subsubitem}[image]

% Use ChicagoMaroon color when the user defines their own itemize marker
\setbeamercolor*{itemize item}{fg=ChicagoMaroon}
\setbeamercolor*{itemize subitem}{fg=ChicagoMaroon}
\setbeamercolor*{itemize subsubitem}{fg=ChicagoMaroon}



% Space out itemized items a bit more
%---------------------

\newlength{\wideitemsep}
\setlength{\wideitemsep}{\itemsep}
\addtolength{\wideitemsep}{0.25em}
\let\olditem\item
\renewcommand{\item}{\setlength{\itemsep}{\wideitemsep}\olditem}



%============================================================================================%
%		Create title slide
%============================================================================================%

% Customize the text layout:

\setbeamerfont{title}{size=\huge}
\defbeamertemplate*{title page}{customized}[1][]
{
  \usebeamerfont{title}\usebeamercolor[white]{title}\inserttitle\par
  \usebeamerfont{subtitle}\usebeamercolor[white]{subtitle}\insertsubtitle\par
  \bigskip
  \bigskip
  \bigskip
  \bigskip
  \centering
  \usebeamerfont{author}\insertauthor\par
  \smallskip
  \usebeamerfont{institute}\insertinstitute\par
  \bigskip
  \usebeamerfont{date}\insertdate\par
  \usebeamercolor[fg]{titlegraphic}\inserttitlegraphic

}


% Create title slide background

\newcommand\BackgroundShaded{%
\setbeamertemplate{background}{%
\begin{tikzpicture}[every node/.style={inner sep=0,outer sep=0}]
    \shade [left color=RedShade1,right color=RedShade2]
      (0,0) rectangle (\paperwidth,\paperheight);
      \node [above left] (russell) at (\paperwidth,0) %(10,3.5)
    {\includegraphics[height=.8\paperheight]{graphics/mcmaster-shield-only-background}};
  \end{tikzpicture}
}}



\renewcommand\maketitle{
	{\BackgroundShaded
	\begin{frame}
	\titlepage
	\end{frame}
	}
}





%============================================================================================%
% 		Customize \tableofcontent
%============================================================================================%
% Simplier design. Maroon bold numbers, and black text

\setbeamerfont{section number projected}{series=\bfseries,size=\normalsize}
\setbeamercolor{section number projected}{bg=white,fg=ChicagoMaroon}
\setbeamertemplate{sections/subsections in toc}[square]
\setbeamercolor{section in toc}{fg=black}
\setbeamercolor{subsection in toc}{fg=black}
  		


%============================================================================================%
% 		Dont  count appendix slides in the number of total slides displayed on lower right corner of each slide.
%============================================================================================%

\makeatletter

\let\appendixtotalframenumber\empty
\def\mainend{-1}
\let\appendixorig\appendix

\def\appendix{
  \edef\mainend{\theframenumber}
  \immediate\write\@auxout{\string\global\string\@namedef{mainendframenumber}{\mainend}}
  \appendixorig
  \def\inserttotalframenumber{\appendixtotalframenumber}%
  \setcounter{framenumber}{0}
}

\def\pageatend{
  \edef\appendixend{\theframenumber}
  \ifnum\mainend>0%
  \immediate\write\@auxout{\string\global\string\@namedef{appendixtotalframenumber}{\appendixend}}%
  \immediate\write\@auxout{\string\global\string\@namedef{inserttotalframenumber}{\mainend}}%
  \immediate\write\@auxout{\string\@writefile{nav}{\noexpand \headcommand {%
        \noexpand \def\noexpand \inserttotalframenumber{\mainend}}}}%
  \immediate\write\@auxout{\string\@writefile{nav}{\noexpand \headcommand {%
        \noexpand \def\noexpand \appendixtotalframenumber{\appendixend}}}}%
  \else
  \fi
}


\AtEndDocument{\pageatend}
\makeatother




%============================================================================================%
% 		Fix the coloring of items in a ToC
%============================================================================================%
\setbeamerfont{section number projected}{%
  series=\bfseries,size=\normalsize}
\setbeamercolor{section number projected}{bg=white,fg=ChicagoMaroon}
\setbeamertemplate{sections/subsections in toc}[square]
\setbeamercolor{section in toc}{fg=black}
\setbeamercolor{subsection in toc}{fg=black}