ieeetranlistings
I'm writing an article with the IEEEtran template, which have two columns.
I'd like to have a listing with source code that spans the two columns of the article, like in the attached figure.
I'm using the following command: \lstinputlisting[frame=single, caption={blablabla}, label={blablabla}]{listings/blablabla.java}
Does anybody know how to do it?
\documentclass{report}
\usepackage{xcolor}
\usepackage{listings}
\usepackage{caption}
\DeclareCaptionFont{white}{\color{white}}
\DeclareCaptionFormat{listing}{%
\parbox{\textwidth}{\colorbox{gray}{\parbox{\textwidth}{#1#2#3}}\vskip-4pt}}
\captionsetup[lstlisting]{format=listing,labelfont=white,textfont=white}
\lstset{frame=lrb,xleftmargin=\fboxsep,xrightmargin=-\fboxsep}
\begin{document}
\belowcaptionskip=-10pt
\begin{lstlisting}[label=some-code,caption=Some Code]
public void here() {
goes().the().code()
}
\end{lstlisting}
\end{document}
I don't really know anything about listings or multicol and particularly haven't a clue as to why they complain so much about being put in a box (presumably to do with how multicol works its magic). So I went back to the original specification: to get a listings listing in a columnar setup within a TikZ node. I came up with the following solution. What seemed to be the key was to avoid precisely that situation that your code lands in: that something reads in the listing ahead of time and then resets it somewhere else. Several of the commands that I chose to use had a "read ahead" version, and I found that the code did not work if I chose that one. For example, I had to use a minipage instead of a \parbox.
Anyway, this will need tweaking I'm sure - particularly with regard to line widths - but it does seem to do the basic "put a 2-column listing in a TikZ node".
\documentclass{article}
\usepackage{listings}
\usepackage{tikz}
\usepackage{multicol}
\tikzstyle{sourcecodebox} = [
fill=white, draw=black, inner sep=1em, rectangle
]
\makeatletter
\lstnewenvironment{lstfigurelisting}[1][]{%
\tikzpicture
\node[sourcecodebox] (box)
\bgroup
\minipage{.75\textwidth}
\lstset{frame=none,#1}
}
{
\endminipage
\egroup;
\endtikzpicture
}
\makeatother
\begin{document}
Some code here:
\begin{lstfigurelisting}[multicols=2]
#!/usr/bin/env python
def main():
print "Hello, World!"
if __name__ == '__main__':
main()
\end{lstfigurelisting}
\end{document}
Result:
Best Answer
Until now I didn't find a way to make a listing span two colums using the command that reads the code from a file (
\lstinputlisting).However, I managed how to do it by putting the code in the latex document, as follows: