beamerthemei4.sty

   1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2 % $Id$
   3 %
   4 % a beamer style for i4
   5 %
   6 % Copyright 2009 by Daniel Lohmann (dl@cs.fau.de)
   7 %
   8 % This file may be distributed and/or modified
   9 %
  10 % 1. under the LaTeX Project Public License and/or
  11 % 2. under the GNU Public License.
  12 %
  13 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  14
  15
  16 \mode<presentation>
  17
  18 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  19 % color setup
  20 %
  21 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  22   \definecolor{i4red}{rgb}{0.69,0.11,0.18}
  23   \definecolor{i4blue}{rgb}{0.0,0.4,0.62}
  24   \definecolor{i4gray}{rgb}{0.827,0.827,0.827}
  25   \definecolor{darkred}{rgb}{0.8,0,0}
  26
  27   % the "example green" beamer defines in the default colortheme
  28   \colorlet{beamergreen}{green!50!black}
  29
  30   \setbeamercolor{structure}{fg=i4blue,bg={}}
  31   \setbeamercolor{section in toc}{fg=black,bg={}}
  32   \setbeamercolor{subsection in toc}{fg=black,bg={}}
  33   \setbeamercolor{alerted text}{fg=i4red}
  34   \setbeamercolor*{palette primary}{fg=black,bg=white}
  35   \setbeamercolor*{palette secondary}{fg=i4blue,bg=white}
  36   \setbeamercolor*{palette tertiary}{fg=i4red,bg=white}
  37   \setbeamercolor*{palette quaternary}{fg=darkred,bg=gray!5!white}
  38   \setbeamercolor{titlelike}{parent=structure}
  39   \setbeamercolor{itemize subitem}{fg=i4red}
  40   \setbeamercolor{page number in head/foot}{fg=i4red}
  41   \setbeamercolor{sidebar left}{bg={}}
  42   \setbeamercolor{footline}{parent=structure}
  43
  44 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  45 % background image setup
  46 %
  47 % This is the real trick :-) All graphical elements of the i4-layout are just
  48 % in the background image. To support the "plain"-option for frames, we actually
  49 % need two different background images (and probably a third one for the title
  50 % slide, don't know yet)
  51 %
  52 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  53   \usebackgroundtemplate{
  54     \ifbeamer@plainframe%
  55       \includegraphics[width=\paperwidth]{beamerthemei4_bgplain}%
  56     \else %
  57       \includegraphics[width=\paperwidth]{beamerthemei4_bg}
  58     \fi%
  59   }
  60
  61
  62 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  63 % enumeration style and borders setup
  64 %
  65 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  66   \setbeamersize{sidebar width left=1.07cm}
  67   \setbeamersize{text margin left=0.5em}
  68   \setbeamersize{text margin right=3.5mm}
  69
  70         % the top-level item symbol is rendered into the sidebar
  71   \setbeamertemplate{itemize item}{\raise.5pt\hbox{\vrule width 1ex height 1ex}\hspace{0.5em}}
  72   \setbeamertemplate{itemize subitem}{\raise.5pt\hbox{\vrule width 0.8ex height 0.8ex}}
  73   \setbeamertemplate{itemize subsubitem}{\raise.5ex\hbox{\vrule width 1ex height 0.2ex}}
  74   \setbeamertemplate{headline}[default]
  75
  76   \setlength{\labelwidth}{2em}
  77   \setlength{\labelsep}{0.5em}
  78   \setlength{\leftmargini}{0em}
  79   \setlength{\leftmarginii}{1em}
  80   \setlength{\leftmarginiii}{1em}
  81
  82 % the above looks nice on slides, but bad in block environments; hence we override
  83 % beamers original block envs to modify them
  84
  85   % command to be installed at the begin of every block environment
  86   \newcommand{\beamerblock}{
  87     \setbeamertemplate{itemize item}{\raise.5pt\hbox{\vrule width 0.8ex height 0.8ex}}
  88     \setbeamertemplate{itemize subitem}{\raise.5pt\hbox{\vrule width 0.6ex height 0.6ex}}
  89                 \setlength{\leftmargini}{1.5em}
  90     \setlength{\labelsep}{0.5em}
  91         }
  92
  93   \renewenvironment{block}[1]{%
  94     \begin{actionenv}%
  95                         \beamerblock%
  96       \def\insertblocktitle{#1}%
  97       \par%
  98       \usebeamertemplate{block begin}}
  99     {\par%
 100       \usebeamertemplate{block end}%
 101     \end{actionenv}
 102   }
 103   \renewenvironment{alertblock}[1]{%
 104     \begin{actionenv}%
 105                         \beamerblock%
 106       \def\insertblocktitle{#1}%
 107       \par%
 108       \mode<presentation>{%\usebeamerfont{block}%
 109         \setbeamercolor{local structure}{parent=alerted text}}%
 110       \usebeamertemplate{block alerted begin}}
 111     {\par%
 112       \usebeamertemplate{block alerted end}%
 113     \end{actionenv}
 114   }
 115   \renewenvironment{exampleblock}[1]{%
 116     \begin{actionenv}%
 117                         \beamerblock%
 118       \def\insertblocktitle{#1}%
 119       \par%
 120       \mode<presentation>{%\usebeamerfont{block}%
 121         \setbeamercolor{local structure}{parent=example text}}%
 122       \usebeamertemplate{block example begin}}
 123     {\par%
 124       \usebeamertemplate{block example end}%
 125     \end{actionenv}
 126   }
 127
 128
 129 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 130 % footline definitions
 131 %
 132 % The footline is one of the things that are heavily customizable in beamer using
 133 % outer themes. However, we skip (and do not support) all those fancy beamer
 134 % themes here and just let beamer it render as text line. This gives us full
 135 % control and easy adaptation, but some things (especially the vertical layout)
 136 % remain a bit hacky :-)
 137 %
 138 % To provide for more easy customization within presentations, the framenumbering
 139 % can be customized (and also locally surpressed) by overwriting the
 140 % macro \InsertFrameNumber
 141 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 142
 143   % default style for frame numbers
 144   \def\InsertFrameNumber{\insertframenumber\,--\,\inserttotalframenumber}
 145   \setbeamertemplate{footline}[text line]{
 146     % beamer has already set footline color/font here
 147     %
 148     % use raisebox to align footline with i4logo
 149     \raisebox{2.5mm}{\vbox{
 150       % insert a strut (invisible vertical line) to prevent line breaks
 151       \rule{0mm}{3mm}
 152       % here the real content starts
 153       % print author and title
 154       \insertshortauthor
 155       \hspace{2em}
 156       \insertshorttitle
 157       % if a shortdate is given, print it in brackets after the title
 158       \ifx\insertshortdate\@empty
 159       \else
 160         ~(\insertshortdate)
 161       \fi
 162       \hspace{2em}
 163       % if section/subsection are defined, print them (seperated by an em-dash)
 164       \ifx\insertsection\@empty%
 165       \else%
 166         \insertsection%
 167           \ifx\insertsubsection\@empty%
 168           \else%
 169             \,--\,\insertsubsection%
 170           \fi
 171         \fi
 172       % print the remaining stuff right-aligned
 173       \hfill
 174       % print page number
 175       {
 176         \usebeamercolor[fg]{page number in head/foot}\usebeamerfont{page number in head/foot}
 177         \parbox[t]{0.7cm}{\centering{\InsertFrameNumber}}
 178       }%
 179     }}
 180   }
 181
 182
 183 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 184 % frametitle setup
 185 %
 186 % This is probably the most hacky part of i4beamer We completely overwrite the
 187 % code beamer uses to render the frame title, especially to get the vertical
 188 % spacing and alignment right, so it fits with the "background".
 189 %
 190 % The i4-Layout does not really offer space for subtitles. We support them
 191 % anyway by printing them right-aligned.
 192 %
 193 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 194   \setbeamertemplate{frametitle}{
 195     \usebeamerfont{frametitle}\usebeamercolor[fg]{frametitle}
 196     \insertframetitle\strut
 197     \ifx\insertframesubtitle\@empty
 198     \else {%
 199       \usebeamerfont{framesubtitle}\usebeamercolor[fg]{framesubtitle}
 200       \hfill\insertframesubtitle\strut
 201     }%
 202     \fi
 203     \par\vskip2pt
 204   }
 205
 206 \mode
 207 <all>