結合“tikzpicture”和“lstlisting”

Question

我正在開發一個自訂lstlisting環境，在其中使用 TikZ 添加框架和標題。由於大括號的普遍使用node我無法使用newenvironment，所以我不得不求助於NewEnviron.

從 MWE 和下面的圖片應該可以清楚地看出我想要實現的目標：

\documentclass[a4paper,11pt]{article}

\usepackage{listings}
\lstset{breaklines=true, postbreak={\mbox{$\hookrightarrow\space$}}, language=Mathematica}

\usepackage{tikz}
\usetikzlibrary{shapes,decorations}

\tikzstyle{boxround} = [draw=black, thick, rectangle, rounded corners, inner sep=10pt, inner ysep=20pt]
\tikzstyle{head} =[draw=black, fill=white, thick, rectangle]

\usepackage{environ}

\NewEnviron{code}{%
\bigskip
\noindent\begin{tikzpicture}
\node [boxround] (box){%
\begin{minipage}{.94\textwidth}
\BODY
\end{minipage}};
\node[head, right=10pt] at (box.north west) {\textbf{Code listing}};
\end{tikzpicture}
\bigskip
}

\begin{document}

\begin{code}
How to get some \textsc{Mathematica} code (shown below) in this box...
\end{code}

\footnotesize
\begin{lstlisting}
B11[x_, y_] = Piecewise[{{1, 0 <= x <= 1 && 0 <= y <= 1}}];
Plot3D[B11[x, y], {x, -.5, 1.5}, {y, -.5, 1.5}, PlotRange -> Full]; 
\end{lstlisting}
\normalsize

\end{document}

這導致

如果不是的話tikzpicture，我就用lstnewenvironment。但考慮到大括號的廣泛使用，node我不知道我該怎麼做。有任何想法嗎？

Answer 1

這裡有一個建議mdframed：

\documentclass{article}

\usepackage{libertine}
\usepackage[T1]{fontenc}
\usepackage{listings}
\lstset{basicstyle=\footnotesize\ttfamily,breaklines=true, postbreak={\mbox{$\hookrightarrow\space$}}, language=Mathematica}

\usepackage[framemethod=TikZ]{mdframed}

\mdfdefinestyle{lstlisting}{%
 innertopmargin=5pt,
 middlelinewidth=1pt,
 outerlinewidth=9pt,outerlinecolor=white,
 innerleftmargin=10pt,
 innerrightmargin=10pt,
 leftmargin=-9pt,rightmargin=-9pt,
 skipabove=\topskip,
 skipbelow=\topskip,
 roundcorner=5pt,
 singleextra={\node[draw, fill=white,anchor=west, xshift=10pt+1pt,font=\bfseries] at (O|-P) {Code Listings};},
 firstextra={\node[draw, fill=white,anchor=west, xshift=10pt+1pt,font=\bfseries] at (O|-P) {Code Listings};}
}

\lstnewenvironment{code}{%
  \mdframed[style=lstlisting]%
}{\endmdframed}

\begin{document}
Text
\begin{code}
B11[x_, y_] = Piecewise[{{1, 0 <= x <= 1 && 0 <= y <= 1}}];
Plot3D[B11[x, y], {x, -.5, 1.5}, {y, -.5, 1.5}, PlotRange -> Full]; 
\end{code}
\end{document}

---

更新

在下面的範例中，您有一個名為的新環境code，該環境具有一個可選參數和一個強制參數。傳遞可選參數\lstset，強制參數是標題。

\documentclass{article}

\usepackage{libertine}
\usepackage[T1]{fontenc}
\usepackage{listings}
\lstset{basicstyle=\footnotesize\ttfamily,breaklines=true, postbreak={\mbox{$\hookrightarrow\space$}}, language=Mathematica}

\usepackage[framemethod=TikZ]{mdframed}

\makeatletter
\def\mdf@@codeheading{Code Listings}%new mdframed key:
\define@key{mdf}{title}{%
   \def\mdf@@codeheading{#1}
}

\mdfdefinestyle{lstlisting}{%
 innertopmargin=5pt,
 middlelinewidth=1pt,
 outerlinewidth=9pt,outerlinecolor=white,
 innerleftmargin=10pt,
 innerrightmargin=10pt,
 leftmargin=-9pt,rightmargin=-9pt,
 skipabove=\topskip,
 skipbelow=\topskip,
 roundcorner=5pt,
 singleextra={\node[draw, fill=white,anchor=west, xshift=10pt+1pt,font=\bfseries] at (O|-P) {\csname mdf@@codeheading\endcsname};},
 firstextra={\node[draw, fill=white,anchor=west, xshift=10pt+1pt,font=\bfseries] at (O|-P) {\csname mdf@@codeheading\endcsname};}
}

\lstnewenvironment{code}[2][]{%
  \lstset{#1}%
  \mdframed[style=lstlisting,title={#2}]%
}{\endmdframed}

\begin{document}
Text

\begin{code}{Mathematice Listings}
B11[x_, y_] = Piecewise[{{1, 0 <= x <= 1 && 0 <= y <= 1}}];
Plot3D[B11[x, y], {x, -.5, 1.5}, {y, -.5, 1.5}, PlotRange -> Full]; 
\end{code}

Text

\begin{code}{Code Listings}
B11[x_, y_] = Piecewise[{{1, 0 <= x <= 1 && 0 <= y <= 1}}];
Plot3D[B11[x, y], {x, -.5, 1.5}, {y, -.5, 1.5}, PlotRange -> Full]; 
\end{code}
\end{document}

Answer 2

這裡有一個建議使用tcolorbox

\documentclass{article}
\usepackage{libertine}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\usepackage{tcolorbox}
\tcbuselibrary{listings}
\tcbuselibrary{skins}

\newenvironment{code}{%
  \tcblisting{listing only,colback=white,enlarge top by=5.5mm,enhanced,%
     overlay={\node[draw,fill=white,xshift=10pt,right,font=\bfseries] at (frame.north west) {Code Listings};},%
     listing options={basicstyle=\footnotesize\ttfamily,breaklines=true,%
                      postbreak={\mbox{$\hookrightarrow\space$}},language=Mathematica},%
  }%
 }%
 {\endtcblisting}

\begin{document}
\begin{code}
B11[x_, y_] = Piecewise[{{1, 0 <= x <= 1 && 0 <= y <= 1}}];
Plot3D[B11[x, y], {x, -.5, 1.5}, {y, -.5, 1.5}, PlotRange -> Full]; 
\end{code}

\end{document}