在 tcolorbox 中使用 parbox=false 时可以避免边距项目缩进吗？

Question

我建议采用另一种方法（更容易理解）将定理框放在边缘。

使用该包，xcoffin您可以将任何材料放在页面的任何位置。参考点是当前插入点。

因为有些定理来自 tcolorbox 内部，而另一些定理来自文本区域，所以需要两个宏来解释所涉及的不同边距。

（1）\insertTheoBox{<content>}{<vertical shift>}

（2）\insertTheoPara{<content>}{<vertical shift>}

垂直移位允许边距区域内的垂直位移。

宏中使用了两个内部“盒子”：\Framex一个是零深度盒子，允许\Theox盒子在适当的位置连接。

然后将组装的结果排版到边缘区域。

更新修正了一些小问题。没有固定尺寸。

%%%% version 3

\documentclass[twoside]{article}
\usepackage[breakable, theorems, skins]{tcolorbox}
%\tcbset{enhanced}
\usepackage[showframe,letterpaper]{geometry}
\usepackage{ifthen}
\usepackage{lipsum}
\geometry{inner=1in,textheight=9in,textwidth=320pt,marginparwidth=150pt,marginparsep=20pt,bottom=1in,footskip=29pt}

\newtcbtheorem[number within = section]{myexample}{Example}%
{breakable,
    colback=white,
    colbacktitle=white,
    coltitle=black,
    parbox=false,
 %  boxsep=14mm,  % for testing
}{ex}

\newtcbtheorem[number within=section]{myfig}{My Theorem}%
{colback=white, colbacktitle=white,coltitle=black,
    fonttitle=\bfseries,
}{th}  


%%*************************************************************** v3
\usepackage{xcoffins} %added
\NewCoffin\Framex
\NewCoffin\Theox

\usepackage{changepage} %added
\strictpagecheck

\newlength{\Textw} % save textwidth outside the boxes
\setlength{\Textw}{\textwidth}
\newlength{\Hshift}
\newlength{\Mshift}

\newcommand*{\calculateMshift}{%
    \checkoddpage
    \ifoddpage
        \setlength{\Mshift}{\marginparsep}
    \else
        \setlength{\Mshift}{\dimexpr-\marginparsep-\textwidth-\marginparwidth\relax}
    \fi}

    \newcommand*{\calculateHshift}{%
    \checkoddpage
    \ifoddpage
        \setlength{\Hshift}{\dimexpr\Textw/2-\tcbtextwidth/2\relax}
    \else
        \setlength{\Hshift}{\dimexpr-\Textw/2+\tcbtextwidth/2\relax}
    \fi}
    
\newcommand{\insertTheoBox}[2]{% v2 updated         
    \par %start a new line
    \calculateMshift
    \calculateHshift    
    \SetHorizontalCoffin\Framex{\color{blue}\rule{\tcbtextwidth}{0pt}} %clear box Framex
    \SetVerticalCoffin\Theox{\marginparwidth}{#1}% fill box \Theox
    \JoinCoffins*\Framex[r,vc]\Theox[l,vc](\dimexpr\Mshift+\Hshift\relax,#2)%join boxes
    \noindent\TypesetCoffin\Framex\\[-2\baselineskip] %typeset assembly
}

\newcommand{\insertTheoPara}[2]{% v2 updated
    \par
    \calculateMshift    
    \SetHorizontalCoffin\Framex{\color{red}\rule{\textwidth}{0pt}}
    \SetVerticalCoffin\Theox{\marginparwidth}{#1}
    \JoinCoffins*\Framex[r,vc]\Theox[l,vc](\Mshift,#2)  
    \noindent\TypesetCoffin\Framex\\[-2\baselineskip]
}
%%***************************************************************

\begin{document}    

    \begin{myexample}{title}{label}
        1. \lipsum[1]           
        \insertTheoBox{%
            \begin{myfig}{title1}{label1}
                \begin{itemize}
                    \item An item
                    \item Another item
                    \item A somewhat longer item that is a bit longer than the margin width
                \end{itemize}
            \end{myfig}
        }{70pt}         
                
    2.  \lipsum[2]          
    \insertTheoBox{%
        \begin{myfig}{title2}{label2}
            \begin{itemize}
                \item An item
                \item Another item
                \item A somewhat longer item that is a bit longer than the margin width
            \end{itemize}
        \end{myfig}
    }{50pt}
            
    3.  \lipsum[5]      
    \end{myexample}

    \insertTheoPara{%       
    \begin{myfig}{title3}{label3}
        \begin{itemize}
            \item An item
            \item Another item
            \item A somewhat longer item that is a bit longer than the margin width
        \end{itemize}
    \end{myfig}
        }{-40pt}    

    
    4.  \lipsum[1-2]                    
    \insertTheoPara{%
    \begin{myfig}{title4}{label4}
        \begin{itemize}
            \item An item
            \item Another item
            \item A somewhat longer item that is a bit longer than the margin width
        \end{itemize}
    \end{myfig}
    }{-20pt}
    
    5.  \lipsum[3]  
    
        \insertTheoPara{%
        \begin{myfig}{title5}{label7}
            \begin{itemize}
                \item An item
                \item Another item
                \item A somewhat longer item that is a bit longer than the margin width
            \end{itemize}
        \end{myfig}
    }{-250pt}
    
    \begin{myexample}{Title5}{label5}
    6.  \lipsum[2]  
    
        \insertTheoBox{%
        \begin{myfig}{title6}{label6}
            \begin{itemize}
                \item An item
                \item Another item
                \item A somewhat longer item that is a bit longer than the margin width
            \end{itemize}
        \end{myfig}
    }{60pt}     
            
    \end{myexample}
\end{document}

边距框及其位置将根据页面几何形状或文本区域中框的内部几何形状的变化而自动调整。

对于下图

\geometry{inner=1in,textheight=9in,
    textwidth=220pt, % changed <<<<<
    marginparwidth=220pt,  % changed <<<<<
    marginparsep=40pt,  % changed <<<<<
    bottom=1in,footskip=29pt}

    \newtcbtheorem[number within = section]{myexample}{Example}%
{breakable,
    colback=white,
    colbacktitle=white,
    coltitle=black,
    parbox=false,
    boxsep=14mm,  % added <<<<<
}{ex}

Answer 1