tikzposter block numbering

Question

Would anyone have an idea on how to number blocks in a tikzposter, according to the order with which they are read in the tex file ? Ideally the block number would be of the form i/n, where n is the total number of blocks and i the number of the current one.

The outlook would be something similar to the outlook of the following tex file;

\documentclass{tikzposter}
\usepackage{lipsum}
\title{Template Poster}
\author{Author(s)}
\begin{document}
\maketitle
 \block{Basic Block}{Text \hfill (1/6)}
 \begin{columns}
\column{0.3333}% Width set relative to text width
\block{title}{\lipsum[1]
\hfill (2/6)}
\block{title}{\lipsum[2]
\hfill (3/6)}
\column{0.333}
\block{title}{\lipsum[3]
\hfill (4/6)}
\block{title}{\lipsum[1]
\hfill (5/6)}
\column{0.333}
\block{title}{\lipsum[4] 
\hfill(6/6)}

\end{columns}
\end{document}

Answer 1

Here's one possibility using the totcount package; process the document twice to get the value for the total number of blocks.

In this first approach, you use the \countblock command for every block that you want to be numbered:

\documentclass{tikzposter}
\usepackage{lipsum}
\usepackage{totcount}

\newtotcounter{myblocks}
\newcommand\countblock{%
  \stepcounter{myblocks}%
  \hfill (\themyblocks/\total{myblocks})%
}

\title{Template Poster}
\author{Author(s)}

\begin{document}

\maketitle

\block{Basic Block}{Text \countblock}
\begin{columns}
\column{0.3333}% Width set relative to text width
\block{title}{\lipsum[1]\countblock}
\block{title}{\lipsum[2]\countblock}
\column{0.333}
\block{title}{\lipsum[3]\countblock}
\block{title}{\lipsum[1]\countblock}
\column{0.333}
\block{title}{\lipsum[4]\countblock}
\end{columns}

\end{document}

In this second approach, the numbering is done automatically, by patching the \block command:

\documentclass{tikzposter}
\usepackage{lipsum}
\usepackage{totcount}
\usepackage{xpatch}

\makeatletter
\xpatchcmd{\block}
  {#3\par\normalsize}
  {#3\countblock\par\normalsize}
  {}
  {}
\makeatother

\newtotcounter{myblocks}
\newcommand\countblock{%
  \stepcounter{myblocks}%
  \hfill (\themyblocks/\total{myblocks})%
}

\title{Template Poster}
\author{Author(s)}

\begin{document}

\maketitle

\block{Basic Block}{Text}
\begin{columns}
\column{0.3333}% Width set relative to text width
\block{title}{\lipsum[1]}
\block{title}{\lipsum[2]}
\column{0.333}
\block{title}{\lipsum[3]}
\block{title}{\lipsum[1]}
\column{0.333}
\block{title}{\lipsum[4]}
\end{columns}

\end{document}