beamerthemeunihel.sty

% Leo Leppänen, 2019-05-11
% version 1.2.0

\mode<presentation>

\RequirePackage{xcolor}  % \colorlet depends on xcolor
\RequirePackage{etoolbox}  % Needed for switching between frame layouts
\RequirePackage{tikz}
\RequirePackage[overload]{textcase}  % Better uppercasing for titles

% Funding
\newcommand{\funding}[2][]{%
    \def\fundingIcon{#1}
    \def\funding{#2}
}

% Define the official university colours, one for each faculty
% These are all given a name so they can be easily used in presentations
% The colour "fac" is defined as the current faculty's colour,
%  depending on the faculty options

% The official "silver" to be used in the university logo
\definecolor{uh silver}{RGB}{140,140,140}
% Faculty of Arts
\definecolor{fac arts}{RGB}{58,117,196}
% Faculty of Science
\definecolor{fac sci}{RGB}{252,163,17}
% Faculty of Vetinary Medicine
\definecolor{fac vet}{RGB}{0,158,96}
% Faculty of Behavioural Sciences
\definecolor{fac behav}{RGB}{252,209,22}
% Faculty of Theology
\definecolor{fac theo}{RGB}{146,88,200}
% Faculty of Law
\definecolor{fac law}{RGB}{140,0,50}
% Faculty of Social Sciences
\definecolor{fac soc}{RGB}{229,5,58}
% Faculty of Agriculture and Forestry
\definecolor{fac agri}{RGB}{0,176,140}
% Faculty of Medicine
\definecolor{fac med}{RGB}{0,163,154}
% Faculty of Pharmacy
\definecolor{fac pharm}{RGB}{0,189,157}
% Faculty of Biological and Environmental Sciences
\definecolor{fac bio}{RGB}{91,191,33}
% Swedish School of Social Sciences
\definecolor{fac sockom}{RGB}{230,51,117}

\definecolor{background}{RGB}{244,244,244}


% Different flames (logos)
\def\flamefile{images/uh-general-trim.png}
\colorlet{fac}{uh silver}
\DeclareOptionBeamer{general}{
  \def\flamefile{images/uh-general-trim.png}
}
\DeclareOptionBeamer{agri}{
  \def\flamefile{images/uh-agri-trim.png}
  \colorlet{fac}{fac agri}
}
\DeclareOptionBeamer{arts}{
  \def\flamefile{images/uh-arts-trim.png}
  \colorlet{fac}{fac arts}
}
\DeclareOptionBeamer{behav}{
  \def\flamefile{images/uh-behav-trim.png}
  \colorlet{fac}{fac behav}
}
\DeclareOptionBeamer{bio}{
  \def\flamefile{images/uh-bio-trim.png}
  \colorlet{fac}{fac bio}
}
\DeclareOptionBeamer{law}{
  \def\flamefile{images/uh-law-trim.png}
  \colorlet{fac}{fac law}
}
\DeclareOptionBeamer{med}{
  \def\flamefile{images/uh-med-trim.png}
  \colorlet{fac}{fac med}
}
\DeclareOptionBeamer{pharm}{
  \def\flamefile{images/uh-pharm-trim.png}
  \colorlet{fac}{fac pharm}
}
\DeclareOptionBeamer{sci}{
  \def\flamefile{images/uh-sci-trim.png}
  \colorlet{fac}{fac sci}
}
\DeclareOptionBeamer{soc}{
  \def\flamefile{images/uh-soc-trim.png}
  \colorlet{fac}{fac soc}
}
\DeclareOptionBeamer{sockom}{
  \def\flamefile{images/uh-sockom-trim.png}
  \colorlet{fac}{fac sockom}
}
\DeclareOptionBeamer{theo}{
  \def\flamefile{images/uh-theo-trim.png}
  \colorlet{fac}{fac theo}
}
\DeclareOptionBeamer{vet}{
  \def\flamefile{images/uh-vet-trim.png}
  \colorlet{fac}{fac vet}
}

\ProcessOptionsBeamer

% All fonts should be black
\setbeamercolor{normal text}{bg=white,fg=black}
\setbeamercolor{structure}{fg=black}

% Pull in frame title line spacing
\setbeamerfont{frametitle}{size=\linespread{0.8}\Large}

% Disable navigation
\setbeamertemplate{navigation symbols}{}

% Circles for first two levels of itemized lists
% and a dash for the third.
\setbeamertemplate{itemize item}[circle]
\setbeamertemplate{itemize subitem}[circle]
\defbeamertemplate{itemize subsubitem}{dash}{-}
\setbeamertemplate{itemize subsubitem}[dash]

% Grey slide background
% This is created by a big filled tikz node
% Its colour is defined by the colour "background"
% It's called "grey background", so you can position things relative to it
%  using that name
% There's a problem with positioning relative to the box:
%  the background is rendered *after* the slide content, so
%  you can't refer to the box itself on the slide.
% Instead, we define the node for positioning at the start of
%  each frame, then draw the coloured box on the background template.
\def\@drawinvisiblebgbox{%
    % The invisible background box, for positioning
    \tikz[remember picture, overlay] %
      \node (grey background) [text width=0.931\paperwidth, text height=0.803\paperheight,
            anchor=north, yshift=-10pt, opacity=0]
        at (current page.north) {};%
}
% We have nothing else in the headline
% We draw the invisible box there. If you change the headline,
%  include the \@drawinvisiblebgbox command
\setbeamertemplate{headline}{%
    \@drawinvisiblebgbox{}%
}
\setbeamertemplate{background canvas}{%
    % The visible grey box, positioned relative to the invisible one
    \tikz[remember picture, overlay] %
        \fill[fill=background] (grey background.north east) rectangle (grey background.south west);%
}

% Empty version
% Just don't draw the grey box: the invisible one is still there for positioning
\defbeamertemplate{background canvas}{plain}{}


%% Renew the command that inserts an image of the slide into the notes
% This is needed so we define the shape "grey background"
% The background canvas is not drawn when doing this, so otherwise
%  the shape is not drawn, so anything positioned relative to it goes wild
\renewcommand{\insertslideintonotes}[1]{{%
    \tikz[remember picture, overlay] {%
        \pgflowlevel{\pgftransformscale{#1}}
          \node (grey background) [text width=0.931\paperwidth, text height=0.803\paperheight, fill=background] at (current page.center) {};
    }%
  \begin{pgfpicture}{0cm}{0cm}{#1\paperwidth}{#1\paperheight}
    \begin{pgflowlevelscope}{\pgftransformscale{#1}}%
      \color{normal text.bg}
      \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{\paperwidth}{\paperheight}}
      %\pgfusepath{fill}
      \color{normal text.fg}
      {\pgftransformshift{\pgfpoint{\beamer@origlmargin}{\footheight}}\pgftext[left,bottom]{\copy\beamer@frameboxcopy}}
    \end{pgflowlevelscope}
  \end{pgfpicture}%
  }}



% Flame, as used in normal slides
% Declare a PGF image to reduce file size and processing times
\pgfdeclareimage[width=2.05cm]{normal flame}{\flamefile}
\newcommand{\flame}{\pgfuseimage{normal flame}}

% Flame, as used in the title slide
\pgfdeclareimage[width=3.21cm]{title flame}{\flamefile}
\newcommand{\titleflame}{\pgfuseimage{title flame}}

% Template for the title page
\setbeamertemplate{title page}{
    \@drawinvisiblebgbox{}%
    % Place the flame in the top left corner
    \tikz[overlay, remember picture]
        \node[outer sep=0cm, inner sep=0cm, anchor=north west, xshift=0.3cm, yshift=-0.325cm]
            at (current page.north west)
            {\titleflame};
    \vspace{2.6cm}
    \vfil
    \begin{center}
        \textbf{\Large{\MakeUppercase \inserttitle}}\\
        \vspace{.3cm}
        \textbf{\large{\MakeUppercase \insertsubtitle}}\\
        \vspace{.3cm}
        \footnotesize{\insertauthor}
        \vspace{.3cm}

    \end{center}
    \vfill
    \ifx%
        \fundingIcon \undefined %
        \else %
            \IfFileExists{\fundingIcon}%
            {\includegraphics[width=1.5cm]{\fundingIcon}}%
            {}%
        \fi
    \ifx
        \funding @empty@ %
        \else %
            \hfill\tiny{\parbox[b]{0.45\textwidth}{\noindent\funding{}}} %
        \fi
    \vspace{0.2cm}
}

\newif\if@hideframenums
\@hideframenumsfalse
\newcommand{\hideframenums}{\@hideframenumstrue}
\newcommand{\showframenums}{\@hideframenumsfalse}

% Template for the footer, present on all pages
\defbeamertemplate{footline}{normal}{
  \begin{beamercolorbox}[leftskip=.3cm,rightskip=.3cm]{author in head/foot}%
    \vspace*{0.1cm}%
    \parbox[b]{3.5cm}{\parindent = 0pt
        \textbf{HELSINGIN YLIOPISTO} \vspace*{0.05cm}\newline%
        \textbf{HELSINGFORS UNIVERSITET} \vspace*{0.05cm}\newline%
        \textbf{UNIVERSITY OF HELSINKI}
    }%
    \insertshortinstitute \hfill \insertshortauthor \hfill \insertdate \hfill \if@hideframenums\relax\else\insertframenumber{}/\inserttotalframenumber\fi%
    \par
    \vspace*{0.1cm}
  \end{beamercolorbox}
}

% Template for an empty footer, can be selected for handouts
\defbeamertemplate{footline}{plain}{
  \begin{beamercolorbox}[leftskip=.3cm,rightskip=.3cm]{author in head/foot}%
  \end{beamercolorbox}
}

\setbeamertemplate{footline}[normal]


% Template for the non-title frames' header
% Default as the template named "default" so that we can easily switch
% between this and other templates
\usepackage{textcase,regexpatch}
\defbeamertemplate{frametitle}{uhdefault}{%
    % Place the flame at the top left corner of the grey box
    \tikz[overlay, remember picture]
        \node[outer sep=0cm, inner sep=0cm, anchor=north west] at (grey background.north west)
            {\flame};%
    \makeatletter %from https://tex.stackexchange.com/a/149238
    \regexpatchcmd{\insertframetitle}
        {(\c{usebeamertemplate}.*)\c{fi}}
        {\c{NoCaseChange}\cB\{\1\cE\}\c{fi}}
        {}{}%
    \makeatother%
    \vskip 0.5cm%
    \hspace*{45pt}%
    \begin{beamercolorbox}[dp=0.3cm, wd=\dimexpr\paperwidth - 3.6cm\relax]{frametitle}
        \textbf{\Large{\MakeTextUppercase{\insertframetitle}}}%
    \end{beamercolorbox}%
    \ifx\insertframesubtitle\@empty\else%
        \par%
        \hspace*{45pt}%
        \begin{beamercolorbox}[dp=0.2cm, wd=\dimexpr\paperwidth - 3.6cm\relax]{framesubtitle}
            \textit{\large\insertframesubtitle}
        \end{beamercolorbox}%
    \fi%
    \par
}
\setbeamertemplate{frametitle}[uhdefault]



% Flame, small version
\pgfdeclareimage[width=45pt]{small flame}{\flamefile}
\newcommand{\smallflame}{\pgfuseimage{small flame}}



% Define another beamer template for the title, so
% that we can select a version with a smaller flame
% to give us more space.
% Use key "smalltitle" to select for a frame
\defbeamertemplate{frametitle}{smalltitle}{%
    % Place the flame at the top left corner of the grey box
    \tikz[overlay, remember picture]
        \node[outer sep=0cm, inner sep=0cm, anchor=north west] at (grey background.north west)
            {\smallflame};%
    \makeatletter %from https://tex.stackexchange.com/a/149238
    \regexpatchcmd{\insertframetitle}%
        {(\c{usebeamertemplate}.*)\c{fi}}
        {\c{NoCaseChange}\cB\{\1\cE\}\c{fi}}
        {}{}%
    \makeatother%
    \vskip 0.17cm%
    \hspace*{30pt}%
    \begin{beamercolorbox}[dp=0.3cm, wd=\dimexpr\paperwidth - 3.1cm\relax]{frametitle}
        \textbf{\Large{\MakeTextUppercase{\insertframetitle}}}%
    \end{beamercolorbox}%
    \ifx\insertframesubtitle\@empty\else%
        \par\hspace*{30pt}%
        \begin{beamercolorbox}[dp=0.2cm, wd=\dimexpr\paperwidth - 3.1cm\relax]{framesubtitle}
            \textit{\large\insertframesubtitle}
        \end{beamercolorbox}%
    \fi%
    \par
}

% By default, use the default UH title for every frame
\BeforeBeginEnvironment{frame}{%
  \setbeamertemplate{frametitle}[uhdefault]%
}

% Define the frame key to select the smalltitle version
\makeatletter
\define@key{beamerframe}{smalltitle}[true]{%
    \setbeamertemplate{frametitle}[smalltitle]%
}
\makeatother




% Adjust footnote position
\addtobeamertemplate{footnote}{}{\vspace{2ex}}

% Minor adjustments to bibliography
\setbeamertemplate{bibliography item}{\insertbiblabel} %or theenumiv
\setbeamerfont{bibliography item}{size=\scriptsize} % or tiny or  footnotesize
\setbeamerfont{bibliography entry author}{size=\scriptsize}
\setbeamerfont{bibliography entry title}{size=\scriptsize}
\setbeamerfont{bibliography entry location}{size=\scriptsize}
\setbeamerfont{bibliography entry address}{size=\scriptsize}
\setbeamerfont{bibliography entry note}{size=\scriptsize}

% Set blocks to use the faculty's colour in the title
\setbeamercolor{block title}{use=structure,fg=white,bg=fac}
\setbeamercolor{block title example}{parent=normal,fg=white,bg=fac}
\setbeamercolor{block body}{use=structure,fg=black,bg=white}
\setbeamercolor{block body example}{parent=normal,fg=black,bg=white}

\setbeamerfont{block title}{size=\footnotesize}


\mode
<all>