访问 tcolorbox 自定义绘图中的 colframe 值

Question

我正在尝试tcolorbox使用自定义代码来绘制它的框架但访问存储在的颜色colframe。

到目前为止我已经尝试过

\newtcolorbox{leftborderbox}[1][]{
    enhanced,
    breakable,
    colframe=orange,
    colback=orange!20,
    frame code={
        \fill[fill=\pgfkeysvalueof{/tcb/colframe}] (frame.south west) -- (interior.south west) -- (interior.north west) -- (frame.north west);
        },
    sharp corners,
    boxsep=0pt,
    left=5pt,
    right=5pt,
    top=6pt,
    bottom=6pt,
    boxrule=0pt,
    leftrule=4pt,
    #1
}

\begin{leftborderbox}[colframe=pink]
    Hi There!
\end{leftborderbox}

但我收到一个错误，提示\pgfkeysvalueof{/tcb/colframe}不是颜色。我如何访问此键的值？

Answer 1

选项中指定的某些颜色tcolorbox带有前缀tcbcol@，例如

• tcbcol@frame框架的颜色
• tcbcol@title-- 标题文字颜色
• tcbcol@back- 背景色
• tcbcol@upper-- 上方框文字颜色
• tcbcol@lower-- 下方框文字颜色
• tcbcol@backtitle-- 标题的背景颜色

在默认\tcbset设置中，tcolorbox.sty这些tcbcol@...实际上是.colorlet:

\tcbset{... % excerpt from tcolorbox.sty

  colback/.colorlet=tcbcol@back,
  colframe/.colorlet=tcbcol@frame,
  colupper/.colorlet=tcbcol@upper,
  collower/.colorlet=tcbcol@lower,
  coltext/.style={colupper=#1,collower=#1},
  coltitle/.colorlet=tcbcol@title,
...
}

---

\documentclass{article}

\usepackage[most]{tcolorbox}

\newtcolorbox{leftborderbox}[1][]{
    enhanced,
    breakable,
    colframe=orange,
    colback=orange!20,
    frame code={
      \fill[fill=tcbcol@frame] (frame.south west) -- (interior.south west) -- (interior.north west) -- (frame.north west);
      \draw (0,0) node {};
    },
    sharp corners,
    boxsep=0pt,
    left=5pt,
    right=5pt,
    top=6pt,
    bottom=6pt,
    boxrule=0pt,
    leftrule=4pt,
    #1
}

\begin{document}

\begin{leftborderbox}[colframe=pink]
    Hi There!
\end{leftborderbox}
\end{document}