tcolorbox

Question

tcolorbox

我使用这个包是mdframed因为它提供了大量的功能来创建强大的盒子（处理单页和多页情况）。

如何在tcolorbox环境中嵌入列表（例如描述列表），同时让正确的对齐方式自动调整为与环境中的其余内容齐平tcolorbox。

该解决方案应非常强大，因为它可以处理所有嵌入式列表环境。

问题

嵌入列表的文本框超出了环境本身的框（框架）myexample。

代码

\documentclass{article}
 \usepackage{tikz,lipsum} 
 \usepackage{tcolorbox}
 \tcbuselibrary{skins,breakable} 
 \newcounter{myexample} 

 \colorlet{examplecolor}{gray}
 \usepackage{enumitem}

 \setlist[description]{style=nextline,labelwidth=0pt,leftmargin=15pt,itemindent=\dimexpr-5pt-\labelsep\relax} % Global Setup Description List

 \newtcolorbox[use counter=myexample]{myexample}{%
    % myexample Frame Start
    empty,% Empty previously set parameters
    title={\large Example \thetcbcounter},
    % Attaching a box requires an overlay
    attach boxed title to top left,
    % (boxed title style requires an overlay)
    boxed title style={empty,size=minimal,toprule=0pt,top=4pt,overlay={}},
    coltitle=examplecolor,fonttitle=\Large\bfseries,
    before=\par\medskip\noindent,parbox=false,boxsep=0pt,left=0pt,right=3mm,top=2pt,
        breakable,pad at break=0mm,
    % Handles box when it exists on one page only
    overlay unbroken={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]title.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: first page
    overlay first={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]title.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: middle page
    overlay middle={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]frame.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: last page
    overlay last={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]frame.north west) -- ([xshift=-10pt]frame.south west); },%
    }

 \begin{document}
 \lipsum[1-3]

\begin{description}
    \item [Fruit] Fruits tend to be sweet.
     \begin{description}
        \item [Apples] Here is some text.
             \begin{myexample}
             \lipsum[1]
             \begin{itemize}
                \item \lipsum[1]
            \end{itemize}
             \end{myexample}
    \end{description}
 \end{description}
\lipsum[1] % <-- Nothing to do with question, but I noticed that this text is white/invisible and I do not know why.

 \end{document}

输出

Answer 1

虽然删除parbox=false可以避免这个问题，但它也会改变框内的格式——最明显的是 parskip。所以我可能只会重置\@totalleftmargin：

\documentclass[parskip=half]{scrartcl}
\usepackage{tikz,lipsum}
\usepackage{tcolorbox}
\tcbuselibrary{skins,breakable}
\begin{document}
\begin{description}
    \item [Fruit] Fruits tend to be sweet.
    \begin{tcolorbox}[parbox=false,before upper=\csname @totalleftmargin\endcsname0pt]
     blabl\par blbla
     \begin{itemize}
       \item\lipsum[1]
     \end{itemize}
    \end{tcolorbox}
     \begin{tcolorbox}[]
     blabl\par blbla
     \begin{itemize}
       \item\lipsum[1]
     \end{itemize}
    \end{tcolorbox}
 \end{description}

\end{document}

Answer 2

这是手册中关于/tcb/parbox钥匙的说法

遵守手册，你不需要这个密钥，因为它永远是假的。

parbox=false从 的定义中删除myexample。

\documentclass{article}
 \usepackage{tikz,lipsum}
 \usepackage{tcolorbox}
 \tcbuselibrary{skins,breakable}
 \newcounter{myexample}

 \colorlet{examplecolor}{gray}
 \usepackage{enumitem}

 \setlist[description]{style=nextline,labelwidth=0pt,leftmargin=15pt,itemindent=\dimexpr-5pt-\labelsep\relax} % Global Setup Description List

 \newtcolorbox[use counter=myexample]{myexample}{%
    % myexample Frame Start
    empty,% Empty previously set parameters
    title={\large Example \thetcbcounter},
    % Attaching a box requires an overlay
    attach boxed title to top left,
    % (boxed title style requires an overlay)
    boxed title style={empty,size=minimal,toprule=0pt,top=4pt,overlay={}},
    coltitle=examplecolor,fonttitle=\Large\bfseries,
    before=\par\medskip\noindent,boxsep=0pt,left=0pt,right=3mm,top=2pt,
        breakable,pad at break=0mm,
    % Handles box when it exists on one page only
    overlay unbroken={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]title.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: first page
    overlay first={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]title.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: middle page
    overlay middle={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]frame.north west) -- ([xshift=-10pt]frame.south west); },
    % Handles multipage box: last page
    overlay last={\draw[examplecolor,line width=.5pt] ([xshift=-10pt]frame.north west) -- ([xshift=-10pt]frame.south west); },%
    }

 \begin{document}
 \lipsum[1-3]

\begin{description}
    \item [Fruit] Fruits tend to be sweet.
     \begin{description}
        \item [Apples] Here is some text.
             \begin{myexample}
             \lipsum[1]
             \begin{itemize}
                \item \lipsum*[1]
            \end{itemize}
             \end{myexample}
    \end{description}
 \end{description}
\lipsum[1] % <-- Nothing to do with question, but I noticed that this text is white/invisible and I do not know why.

 \end{document}