beamerinnerthemecambridge.sty

% Use the grid pitches from 
% http://www.admin.cam.ac.uk/offices/communications/services/identityguidelines/guidelines-graphiclanguage.pdf
% 
% In essence we want the vertical pitch to be such that there are 30 steps.
% This is based on the PowerPoint template sizes.
%
\newlength{\cam@inner@pitch} \setlength{\cam@inner@pitch}{0.0333333\paperheight} 

% The University logo
\pgfdeclareimage[height=2\cam@inner@pitch]{beamertitlelogocambridge}{uc-cmyk}

\mode<presentation>

\setbeamercolor{special page canvas}{parent=title}
\setbeamercolor{special page title}{use={special page canvas,palette secondry},parent=special page canvas,bg=special page canvas.bg!80!palette secondry.bg}
\setbeamercolor{special page separator upper}{use=special page canvas,parent=special page canvas,bg=special page canvas.bg!33!white}
\setbeamercolor{special page separator lower}{use=special page canvas,parent=special page canvas,bg=special page canvas.bg!33!black}

\setbeamercolor{special page frame number}{parent=part title,fg=white!75}
\setbeamerfont{special page frame number}{size=\tiny}

\setbeamerfont{date}{size=\tiny,series=\bfseries}
\setbeamerfont{part title}{size=\LARGE}
\setbeamerfont{part name}{size=\LARGE}
\setbeamerfont{abstract title}{size=\LARGE}

\setbeamercolor{title page canvas}{parent=normal text}
\setbeamercolor{title page author}{parent=author}
\setbeamercolor{title page date}{parent=date}

\setbeamercolor{part page canvas}{parent=special page canvas}
\setbeamercolor{part page title}{parent=special page title}
\setbeamercolor{part page separator upper}{parent=special page separator upper}
\setbeamercolor{part page separator lower}{parent=special page separator lower}
\setbeamercolor{part page frame number}{parent=special page frame number}
\setbeamerfont{part page frame number}{parent=special page frame number}

\setbeamercolor{abstract page canvas}{parent=special page canvas}
\setbeamercolor{abstract page title}{parent=special page title}
\setbeamercolor{abstract page separator upper}{parent=special page separator upper}
\setbeamercolor{abstract page separator lower}{parent=special page separator lower}
\setbeamercolor{abstract page frame number}{parent=special page frame number}
\setbeamerfont{abstract page frame number}{parent=special page frame number}

\newlength{\oversized@paperwidth}
\newlength{\oversized@paperheight}

% Title page

\newcommand{\start@fullpage}[1]{
  \setlength{\oversized@paperwidth}{\paperwidth}\addtolength{\oversized@paperwidth}{0.25em}
  \setlength{\oversized@paperheight}{\paperheight}\addtolength{\oversized@paperheight}{0.25em}
  %
  % HACK: Beamer always inserts a 0.125em space after the frame title, even if it is
  % empty. We hack around this by skipping upwards and using a slightly oversized
  % box to draw the background.
  \vskip-0.125em%
  %
  \color@bar[ht=\oversized@paperheight]{#1}
  \vskip-\oversized@paperheight
}

\newcommand{\color@bar}[2][]{
  \begin{beamercolorbox}[wd=\oversized@paperwidth,ht=\oversized@paperheight,#1]{#2}
    \null
  \end{beamercolorbox}\nointerlineskip
}

\defbeamertemplate*{title page}{cambridge theme}[1][]
{%
  \start@fullpage{title page canvas}
  %
  % Insert titlegraphic
  \vskip2\cam@inner@pitch
  {\usebeamercolor[fg]{titlegraphic}\inserttitlegraphic\par}
  \vskip2\cam@inner@pitch
  \vskip0pt plus 1filll
  %
  % The title itself
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=\cam@inner@pitch,leftskip=\cam@inner@pitch,rightskip=\cam@inner@pitch,#1]{title}
    \usebeamerfont{title}\inserttitle\par%
    \ifx\insertsubtitle\@empty%
    \else%
      \vskip\cam@inner@pitch%
      {\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par}%
    \fi%     
  \end{beamercolorbox}\nointerlineskip%
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=0.5\cam@inner@pitch,leftskip=1.75\cam@inner@pitch,rightskip=1.75\cam@inner@pitch,#1]{title page author}
    {\usebeamerfont{author}\insertauthor\par}
    \ifx\insertinstitute\@empty
    \else
      \vskip\cam@inner@pitch
      {\usebeamerfont{institute}\insertinstitute\par}
    \fi
  \end{beamercolorbox}\nointerlineskip%
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=0.5\cam@inner@pitch,leftskip=1.5\cam@inner@pitch,rightskip=1.5\cam@inner@pitch,#1]{title page date}
    \hfill\usebeamerfont{date}\insertdate
  \end{beamercolorbox}
  \vskip-\cam@inner@pitch % HACK: Not sure why we need this?
}

% Part page

\defbeamertemplate*{part page}{cambridge theme}[1][]
{
  \start@fullpage{part page canvas}
  \vskip2\cam@inner@pitch 
  {\hfill\usebeamerfont{part page frame number}\usebeamercolor[fg]{part page frame number}\insertframenumber\par}
  \vskip0pt plus 1filll
  \color@bar[ht=\cam@inner@pitch]{part page separator upper}
  \color@bar[ht=\cam@inner@pitch]{part page separator lower}
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=0.5\cam@inner@pitch,leftskip=1.5\cam@inner@pitch,rightskip=1.5\cam@inner@pitch,#1]{part page title}
    \hfill\hbox{%
      {\usebeamerfont{part name}\partname~\insertromanpartnumber: }
      {\usebeamerfont{part title}\insertpart\par}
    }
  \end{beamercolorbox}\nointerlineskip%
  \vskip2\cam@inner@pitch 
} 

% (sub-)section in toc: default

\defbeamertemplate*{section in toc}{cambridge theme}
{\inserttocsection\par}

\defbeamertemplate*{subsection in toc}{cambridge theme}
{\leavevmode\leftskip=1.5em\inserttocsubsection\par}

\defbeamertemplate*{subsubsection in toc}{cambridge theme}
{\leavevmode\normalsize\usebeamerfont{subsection in toc}\leftskip=3em%
  \usebeamerfont{subsubsection in toc}\inserttocsubsubsection\par}


% (sub-)section in toc shaded, default

\defbeamertemplate*{section in toc shaded}{cambridge theme}[1][20]
{\begin{colormixin}{#1!parent.bg}\usebeamertemplate{section in toc}\end{colormixin}\unskip}

\defbeamertemplate*{subsection in toc shaded}{cambridge theme}[1][20]
{\begin{colormixin}{#1!parent.bg}\usebeamertemplate{subsection in toc}\end{colormixin}\unskip}

\defbeamertemplate*{subsubsection in toc shaded}{cambridge theme}[1][20]
{\begin{colormixin}{#1!parent.bg}\usebeamertemplate{subsubsection in toc}\end{colormixin}\unskip}

% Itemize items, default

\defbeamertemplate*{itemize item}{cambridge theme}{\scriptsize\raise1.25pt\hbox{\donotcoloroutermaths$\blacktriangleright$}}
\defbeamertemplate*{itemize subitem}{cambridge theme}{\tiny\raise1.5pt\hbox{\donotcoloroutermaths$\blacktriangleright$}}
\defbeamertemplate*{itemize subsubitem}{cambridge theme}{\tiny\raise1.5pt\hbox{\donotcoloroutermaths$\blacktriangleright$}}


% Enumerate items, default

\defbeamertemplate*{enumerate item}{cambridge theme}{\insertenumlabel.}
\defbeamertemplate*{enumerate subitem}{cambridge theme}{\insertenumlabel.\insertsubenumlabel}
\defbeamertemplate*{enumerate subsubitem}{cambridge theme}{\insertenumlabel.\insertsubenumlabel.\insertsubsubenumlabel}
\defbeamertemplate*{enumerate mini template}{cambridge theme}{\insertenumlabel}


% Description item width

\defbeamertemplate*{description item}{cambridge theme}{\insertdescriptionitem}

% Itemize/Enumerate body

\defbeamertemplate*{itemize/enumerate body begin}{cambridge theme}{}
\defbeamertemplate*{itemize/enumerate body end}{cambridge theme}{}

\defbeamertemplate*{itemize/enumerate subbody begin}{cambridge theme}{}
\defbeamertemplate*{itemize/enumerate subbody end}{cambridge theme}{}

\defbeamertemplate*{itemize/enumerate subsubbody begin}{cambridge theme}{}
\defbeamertemplate*{itemize/enumerate subsubbody end}{cambridge theme}{}

% Alerted text

\defbeamertemplate*{alerted text begin}{cambridge theme}{\setbeamercolor{local structure}{parent=alerted text}}

% Structured text

% empyt defaults

% Bibliography items

\defbeamertemplate*{bibliography item}{cambridge theme}
{\lower3.5pt\hbox{\hskip2pt\pgfuseimage{beamericonarticle}\hskip1pt}}

\defbeamertemplate*{bibliography entry article}{cambridge theme}{}
\defbeamertemplate*{bibliography entry title}{cambridge theme}{\par}
\defbeamertemplate*{bibliography entry location}{cambridge theme}{\par}
\defbeamertemplate*{bibliography entry note}{cambridge theme}{\par}

% Abstract

\defbeamertemplate*{abstract begin}{cambridge theme}{%
  \start@fullpage{abstract page canvas}
  \vskip4\cam@inner@pitch 
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=0.5\cam@inner@pitch,leftskip=1.5\cam@inner@pitch]{abstract page title}
    \vskip2.5\cam@inner@pitch 
    {\usebeamerfont*{abstract title}\abstractname\par}
  \end{beamercolorbox}\nointerlineskip%
  \color@bar[ht=\cam@inner@pitch]{abstract page separator upper}
  \color@bar[ht=\cam@inner@pitch]{abstract page separator lower}
  \vskip2\cam@inner@pitch 
  \vskip0pt plus 1filll
  \begin{beamercolorbox}[wd=\oversized@paperwidth,sep=2\cam@inner@pitch]{abstract}%
}

\defbeamertemplate*{abstract title}{cambridge theme}%
{}

\defbeamertemplate*{abstract end}{cambridge theme}{%
  \end{beamercolorbox}\nointerlineskip%
  %\vskip2\cam@inner@pitch 
  \vskip0pt plus 1filll
  \vskip0pt plus 1filll
  {\hfill\usebeamerfont{abstract page frame number}\usebeamercolor[fg]{abstract page frame number}\insertframenumber\par}
  \vskip-\cam@inner@pitch %HACK: Why is this needed?
}

%{\beamercolorbox[vmode]{abstract}\leftskip2em\rightskip2em plus 1fill\usebeamerfont*{abstract}}

%\defbeamertemplate*{abstract end}{cambridge theme}
%{}
%{\medskip\endbeamercolorbox}

% Verse

\defbeamertemplate*{verse begin}{cambridge theme}
{\beamercolorbox[vmode]{verse}}

\defbeamertemplate*{verse end}{cambridge theme}
{\endbeamercolorbox}

% Quotation

\defbeamertemplate*{quotation begin}{cambridge theme}
{\beamercolorbox[vmode]{quotation}}

\defbeamertemplate*{quotation end}{cambridge theme}
{\endbeamercolorbox}

% Quote

\defbeamertemplate*{quote begin}{cambridge theme}
{\beamercolorbox[vmode]{quote}}

\defbeamertemplate*{quote end}{cambridge theme}
{\endbeamercolorbox}

% Footnotes

\defbeamertemplate*{footnote}{cambridge theme}
{
  \parindent 1em\noindent%
  \raggedright
  \hbox to 1.8em{\hfil\insertfootnotemark}\insertfootnotetext\par%
}

% Captions

\defbeamertemplate*{caption}{cambridge theme}
{%
  \raggedright
  {%
    \usebeamercolor[fg]{caption name}%
    \usebeamerfont*{caption name}%
    \insertcaptionname:%
  }
  \insertcaption\par
}

% Blocks

\defbeamertemplate*{block begin}{cambridge theme}
{
  \par\vskip\medskipamount%
  \begin{beamercolorbox}[colsep*=.75ex]{block title}
    \usebeamerfont*{block title}\insertblocktitle%
  \end{beamercolorbox}%
  {\parskip0pt\par}%
  \ifbeamercolorempty[bg]{block title}
  {}
  {\ifbeamercolorempty[bg]{block body}{}{\nointerlineskip\vskip-0.5pt}}%
  \usebeamerfont{block body}%
  \begin{beamercolorbox}[colsep*=.75ex,vmode]{block body}%
    \ifbeamercolorempty[bg]{block body}{\vskip-.25ex}{\vskip-.75ex}\vbox{}%
}
\defbeamertemplate*{block end}{cambridge theme}  
{\end{beamercolorbox}\vskip\smallskipamount}

\defbeamertemplate*{block alerted begin}{cambridge theme}
{
  \par\vskip\medskipamount%
  \begin{beamercolorbox}[colsep*=.75ex]{block title alerted}
    \usebeamerfont*{block title alerted}\insertblocktitle%
  \end{beamercolorbox}%
  {\parskip0pt\par}%
  \ifbeamercolorempty[bg]{block title alerted}
  {}
  {\ifbeamercolorempty[bg]{block body alerted}{}{\nointerlineskip\vskip-0.5pt}}%
  \usebeamerfont{block body alerted}%
  \begin{beamercolorbox}[colsep*=.75ex,vmode]{block body alerted}%
    \ifbeamercolorempty[bg]{block body alerted}{\vskip-.25ex}{\vskip-.75ex}\vbox{}%
}

\defbeamertemplate*{block alerted end}{cambridge theme}
{\end{beamercolorbox}\vskip\smallskipamount}


\defbeamertemplate*{block example begin}{cambridge theme}
{
  \par\vskip\medskipamount%
  \begin{beamercolorbox}[colsep*=.75ex]{block title example}
    \usebeamerfont*{block title example}\insertblocktitle%
  \end{beamercolorbox}%
  {\parskip0pt\par}%
  \ifbeamercolorempty[bg]{block title example}
  {}
  {\ifbeamercolorempty[bg]{block body example}{}{\nointerlineskip\vskip-0.5pt}}%
  \usebeamerfont{block body example}%
  \begin{beamercolorbox}[colsep*=.75ex,vmode]{block body example}%
    \ifbeamercolorempty[bg]{block body example}{\vskip-.25ex}{\vskip-.75ex}\vbox{}%
}
\defbeamertemplate*{block example end}{cambridge theme}
{\end{beamercolorbox}\vskip\smallskipamount}

% Theorems

\defbeamertemplate*{theorem begin}{cambridge theme}
{%
  \begin{\inserttheoremblockenv}
  {%
    \inserttheoremname
    \ifx\inserttheoremaddition\@empty\else\ (\inserttheoremaddition)\fi%
  }%
}

\defbeamertemplate*{theorem end}{cambridge theme}
{\end{\inserttheoremblockenv}}

% Proofs
\defbeamertemplate*{proof begin}{cambridge theme}
{\begin{block}{\insertproofname}}

\defbeamertemplate*{proof end}{cambridge theme}
{\end{block}}

\defbeamertemplate*{qed symbol}{cambridge theme}
{\openbox}

\mode<all>

% Default title graphic is uni logo.
\titlegraphic{\pgfuseimage{beamertitlelogocambridge}}

% vim:sw=2:ts=2:et