beamerheader-footer
I am using the following to customise my footline, but it does not seem to change the height of the footline. What am I missing
\setbeamertemplate{footline}
{
\leavevmode%
\makebox[\paperwidth]
{\begin{beamercolorbox}[wd=\paperwidth,ht=2.25ex,dp=1.5cm, leftskip=.3cm,rightskip=.3cm plus1fill]{author in head/foot}%
{\large \url{www.yahoo.com}}
\end{beamercolorbox}%
}%
\vskip0pt%
}
This provides a new template/font/color footline extra and a macro \footlineextra to add text to the footline.
\documentclass{beamer}
\title{Adding extra text to footline}
\author{R.J.~Drofnats}
\institute{University of St. Anford}
\useoutertheme{infolines}% for example, ymmv
\makeatletter
% add a macro that saves its argument
\newcommand{\footlineextra}[1]{\gdef\insertfootlineextra{#1}}
\newbox\footlineextrabox
% add a beamer template that sets the saved argument in a box.
% The * means that the beamer font and color "footline extra" are automatically added.
\defbeamertemplate*{footline extra}{default}{
\begin{beamercolorbox}[ht=2.25ex,dp=1ex,leftskip=\Gm@lmargin]{footline extra}
\insertfootlineextra
%\par\vspace{2.5pt}
\end{beamercolorbox}
}
\addtobeamertemplate{footline}{%
% set the box with the extra footline material but make it add no vertical space
\setbox\footlineextrabox=\vbox{\usebeamertemplate*{footline extra}}
\vskip -\ht\footlineextrabox
\vskip -\dp\footlineextrabox
\box\footlineextrabox%
}
{}
% patch \begin{frame} to reset the footline extra material
\let\beamer@original@frame=\frame
\def\frame{\gdef\insertfootlineextra{}\beamer@original@frame}
\footlineextra{}
\makeatother
\setbeamercolor{footline extra}{fg=structure.fg}% for instance
\begin{document}
\begin{frame}\maketitle\end{frame}
\begin{frame}{foo}
\begin{itemize}
\item one
\item two
\item three
\end{itemize}
\footlineextra{Source: ``Mr. Lee'' by the Bobbettes}
\end{frame}
\begin{frame}{bar}
\begin{itemize}
\item Able
\item Baker
\item Charlie
\end{itemize}
\footlineextra{Source: \emph{What do People Do All Day?} by Richard Scarry}
\end{frame}
\begin{frame}{baz}
No footlineextra here
\end{frame}
\end{document}
Having spent an hour on this I must quit but a nice addition would be to make \footlineextra overlay-specification aware.
One option would be to patch the \beamer@calculateheadfoot command (defined in the file beamerbaseframecomponents.sty) to add some space for the new footline:
\documentclass[12pt,ngerman]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{etoolbox}
\usepackage{lipsum}
\setbeamertemplate{navigation symbols}{}
\makeatletter
\patchcmd{\beamer@calculateheadfoot}{\advance\footheight by 4pt}{\advance\footheight by 20pt}{}{}
\makeatother
\setbeamertemplate{footline}{
{%
\begin{beamercolorbox}[wd=\paperwidth,ht=1.5ex,dp=20pt,leftskip=.3cm,rightskip=.3cm]{author in head/foot}
\tiny\begin{tabular}[t]{@{}p{0.25\textwidth}p{0.25\textwidth}p{0.38\textwidth}@{}}
First line & John Doe & fsdfs\\
second line \& Title of the talk & dsdfsd\\
some third line & &
\end{tabular}
\end{beamercolorbox}
}}
\begin{document}
\frame{
\frametitle{Test Frame}
\lipsum[4]
}
\end{document}
I also added a beamercolorbox to the definition, but this is completely optional.
Best Answer
You can use the
\fontsize{size}{skip}command, wheresizeis your desired fontsize, andskipis the distance between lines (multiplied by\baselineskip)The height of
footlineis computed to fit the font. Is this what you want?