Mfrhtyj

SE

I am trying to draw the image below in LaTeX using lstlisting, tikzpicture, minipage, and tabular

The code that I got so far can be seen below

documentclass{article}

usepackage[utf8]{inputenc}



usepackage{tikz}

usetikzlibrary{tikzmark}

usepackage{listings}



lstset{language=C,

            basicstyle=ttfamily,

            frame=single,

            keywordstyle=color{blue}ttfamily,

            stringstyle=color{red}ttfamily,

            commentstyle=color{green}ttfamily,

            morecomment=[l][color{magenta}]{#}

}



begin{document}



begin{minipage}{0.8textwidth}



begin{tikzpicture}



    draw[- >,overlay] (1.5,-2.8) -- node [below] {(int, int)} (4,-0.8);



end{tikzpicture}



begin{tabular}{cc}

    begin{lstlisting}[language=C]

void foo()

{

    int q = 5;

    int l = 6;



    bar(q, l);



}

end{lstlisting}



&

begin{lstlisting}[language=C]

void bar(int a, int b)

{

    ...

    ...

    ...

    ...

}

end{lstlisting}



end{tabular}



end{minipage}



end{document}

The code above results in the following piece of 'art'

Is there anyone that can polish this 'art', so it looks a bit more to the target image?

With kind regards,

Xhendos

EDIT:
Changed my code so it is compileable

tikzmark, which you are loading, has a library for that purpose, listings, which allows you to refer to lines of the code without actually modifying it. And I am using this nice answer.

documentclass{article}

usepackage{listings}

usepackage{tikz}

usetikzlibrary{tikzmark}

usetikzmarklibrary{listings}

lstset{language=C,

            basicstyle=ttfamily,

            %frame=single,

            keywordstyle=color{blue}ttfamily,

            stringstyle=color{red}ttfamily,

            commentstyle=color{green}ttfamily,

            morecomment=[l][color{magenta}]{#}

}



newcounter{tmkcount}

tikzset{

  use tikzmark/.style={

    remember picture,

    overlay,

    execute at end picture={

      stepcounter{tmkcount}

    },

  },

  tikzmark suffix={-thetmkcount}

}

begin{document}

%begin{minipage}{0.8textwidth}



begin{tabular}{|l|p{2cm}|l|}

multicolumn{1}{l}{texttt{file_x.c}} &

multicolumn{1}{l}{} &

multicolumn{1}{l}{texttt{file_y.c}}\

cline{1-1} cline{3-3}

begin{lstlisting}[language=C,name=codeL]

void foo()

{

    int q = 5;

    int l = 6;



    bar(q, l);



}

end{lstlisting}

begin{tikzpicture}[use tikzmark]

coordinate (aux) at (pic cs:line-codeL-6-end);

end{tikzpicture}

& &

begin{lstlisting}[language=C,name=codeR]

void bar(int a, int b)

{

    ...

    ...

    ...

    ...

    ...

}

end{lstlisting}\

cline{1-1} cline{3-3}

end{tabular}

begin{tikzpicture}[use tikzmark]

draw[-latex] ([yshift=2ex,xshift=-3ex]aux) to[bend left=10] 

node[midway,above,sloped]{(int,int)} (pic cs:line-codeR-1-start);

end{tikzpicture}

%end{minipage}

end{document}

as tikz image:

documentclass{article}

usepackage{tikz}

usetikzlibrary{positioning, quotes}

usepackage{listings}

lstset{language=C,

            basicstyle=ttfamily,

            keywordstyle=color{blue}ttfamily,

            stringstyle=color{red}ttfamily,

            commentstyle=color{green}ttfamily,

            morecomment=[l][color{magenta}]{#}

}



    begin{document}

    begin{tikzpicture}[

node distance = 22mm,

   box/.style = {draw, align=left}

                        ]

node (a) [box]

{hspace*{-2em}%

    begin{lstlisting}[language=C]

void foo()

{

    int q = 5;

    int l = 6;



    bar(q, l);

}

end{lstlisting}

};

node (b) [box, right=of a]

{hspace*{-2em}%

begin{lstlisting}[language=C]

 void bar(int a, int b)

{

    ...

    ...

    ...

    ...

}

    end{lstlisting}

};

draw[->, black!75] ([shift={(2.2,-4.4ex)}] a.west) to [pos=0.7,"{(int,int)}", sloped] ([shift={(2ex,8ex)}] b.west);

end{tikzpicture}

end{document}