Make two margin notes in left and right of the sameline

Question

I try to do someting like in Margin notes on both left and right? but with wrapfig (or another package which permits it).

The goal is to get two margin notes witch overlap a little bit the main text zone with the text warped around. But the two margin notes have to be in the same line like in this mokup :

The gray zones represent the notes. So, as you see, the notes could have a different size content.

So, for this a made the following MWE:

\documentclass[a4paper,12pt,oneside,french]{article}
\usepackage{wrapfig,graphicx,lipsum}


\begin{document}

\begin{wrapfigure}{l}[2cm]{0.3\textwidth}
    \includegraphics[width=\linewidth,height=80pt]{example-image}
\end{wrapfigure}
\begin{wrapfigure}{r}[2cm]{0.3\textwidth}
    \includegraphics[width=\linewidth,height=200pt]{example-image}
\end{wrapfigure}
\lipsum[1-4]
\end{document}

But, then, I get a wrong rendering as you can see:

So, how can we get a two margin note overlapping the text zone in one line?

Answer 1

Here's a solution based on @UlrikeFischer's answer here, using \parshape instead of warpfigure. It also relies on the \replicate command defined by @JosephWright here.

I defined a new command \doublewrap which takes six arguments:

1. (mandatory) The width of the left margin note,
2. (optional) The number of lines that the left margin note should span,
3. (mandatory) The content of the left margin note,

and 4, 5, and 6 are the same as 1, 2 and 3 respectively, but for the right margin note instead of the left one. \doublewrap outputs both margin notes halfway overlapped in the margin. It should be used just before a paragraph, which should be long enough to span the full height of margin notes. The number of lines (arguments 2 and 5) that the notes should span are calculated automatically if not given, but I strongly suspect that it would be better to set them manually in the cases where the following paragraph contains lines which modify the lines' height, such as display math environments.

Here's the definition of this command along with two examples, the first with images as margin notes and the second with text.

\documentclass{article}
\usepackage{xparse}
\usepackage{graphicx}
\usepackage{calc}
\usepackage{calculator}
\usepackage{lipsum}

\makeatletter
\newcommand*\replicate[1]{%
  \expandafter\replicate@aux\romannumeral\number\numexpr #1\relax000Q{}
}
\newcommand*\replicate@aux[1]{\csname replicate@aux@#1\endcsname}
\newcommand\replicate@aux@m{}
\long\def\replicate@aux@m#1Q#2#3{\replicate@aux#1Q{#2#3}{#3}}
\newcommand\replicate@aux@Q[2]{#1}
\makeatother

\newlength{\betweenwidth}
\newlength{\betweenpluswidth}
\newlength{\leftnotewidth}
\newlength{\rightnotewidth}
\newlength{\leftnotetotalheight}
\newlength{\rightnotetotalheight}
\newlength{\leftraise}
\newlength{\rightraise}
\newcounter{leftlines}
\newcounter{rightlines}
\newcounter{totallines}
\newsavebox{\leftbox}
\newsavebox{\rightbox}
\NewDocumentCommand{\doublewrap}{m o m m o m}{%
    \setlength{\leftnotewidth}{#1}
    \setlength{\rightnotewidth}{#4}
    \savebox{\leftbox}{\parbox{.9\leftnotewidth}{#3}}
    \savebox{\rightbox}{\parbox{.9\rightnotewidth}{#6}}
    \setlength{\leftnotetotalheight}{\ht\leftbox+\dp\leftbox}
    \setlength{\rightnotetotalheight}{\ht\rightbox+\dp\rightbox}
    \setlength{\betweenwidth}{\textwidth - .5\leftnotewidth - .5\rightnotewidth}
    \IfNoValueTF{#2}
        {\LENGTHDIVIDE{\leftnotetotalheight}{\baselineskip}{\divsol}%
         \INTEGERPART{\divsol}{\roundsol}%
         \setcounter{leftlines}{\roundsol+1}}
        {\setcounter{leftlines}{#2}}
    \IfNoValueTF{#5}
        {\LENGTHDIVIDE{\rightnotetotalheight}{\baselineskip}{\divsol}%
         \INTEGERPART{\divsol}{\roundsol}%
         \setcounter{rightlines}{\roundsol+1}}
        {\setcounter{rightlines}{#5}}
    \setcounter{totallines}{\maxof{\theleftlines}{\therightlines} + 2}
    \ifdim \leftnotetotalheight > \rightnotetotalheight
        \setlength{\rightraise}{\ht\leftbox - \ht\rightbox}
        \setlength{\leftraise}{0pt}
        \setlength{\betweenpluswidth}{\betweenwidth + .5\rightnotewidth}
        \parshape \thetotallines %
                                                    -.5\leftnotewidth \betweenwidth
            \replicate{              \therightlines}{.5\leftnotewidth \betweenwidth}
            \replicate{\theleftlines-\therightlines}{.5\leftnotewidth \betweenpluswidth}
                                                                  0pt \textwidth
    \else
        \setlength{\leftraise}{\ht\rightbox - \ht\leftbox}
        \setlength{\rightraise}{0pt}
        \setlength{\betweenpluswidth}{\betweenwidth + .5\leftnotewidth}
        \parshape \thetotallines %
                                                    -.5\leftnotewidth \betweenwidth
            \replicate{               \theleftlines}{.5\leftnotewidth \betweenwidth}
            \replicate{\therightlines-\theleftlines}{             0pt \betweenpluswidth}
                                                                  0pt \textwidth
    \fi
    \noindent\raisebox{-\height}[0pt][0pt]{%
        \makebox[\textwidth + .5\leftnotewidth + .5\rightnotewidth]{%
            \raisebox{\leftraise}{\usebox{\leftbox}}%
            \hfill%
            \raisebox{\rightraise}{\usebox{\rightbox}}%
        }%
    }%
}

\begin{document}

\doublewrap{.3\textwidth}{%
    \includegraphics[width=.27\textwidth, height=3cm]{example-image-a}%
}{.3\textwidth}{%
    \includegraphics[width=.27\textwidth, height=5cm]{example-image-b}%
}
\lipsum*[1-2]

\doublewrap{.4\textwidth}{%
    \LipsumPar{4}
}{.22\textwidth}{%
    \lipsum[1][1]
}
\lipsum*[8-9]

\end{document}